One-way moisture guiding method for foam method polyester fabric

Abstract

The invention discloses a foam method polyester fabric one-way moisture guiding method which comprises the following steps: synthesizing a hydrophilic agent from PEG and IEM under the action of a catalyst, and mixing the hydrophilic agent with 2-butanone to obtain a hydrophilic finishing solution; the preparation method comprises the following steps: adding graphene oxide into absolute ethyl alcohol to obtain a graphene oxide dispersion liquid, adding MPTES and acetic acid, and then adding acetone to obtain sulfydryl functionalized graphene oxide; adding the functionalized graphene oxide into ethanol, and dropwise adding hydrazine hydrate to obtain functionalized reduced graphene oxide; the preparation method comprises the following steps: heating a polyester fabric in sodium hydroxide, and soaking the polyester fabric in MPTES and ethanol to obtain a mercaptan modified polyester fabric; dispersing the functionalized reduced graphene oxide and 2, 2-dimethoxy-2-phenyl acetophenone in the finishing liquid, and adding a foaming agent and a foam stabilizer to obtain a hydrophilic finishing agent; and foaming the finishing agent, applying foam to the surface of the fabric under ultraviolet light, washing with water, and pre-drying and baking to obtain the one-way moisture-conducting polyester fabric. The one-way hydrophobic property, the thermal conductivity and the softness of the polyester fabric are improved.

Description

Technical Field

[0001] The invention relates to the technical field of polyester modification, in particular to a one-way moisture conduction method for polyester fabrics using a foam method. Background Art

[0002] Polyester fiber is used in almost every field of the textile industry due to its excellent durability, high dimensional stability, breaking strength and low cost. However, polyester fiber has poor hygroscopicity, and the standard moisture recovery rate is only 0.4%. In a humid and hot environment, especially in high-intensity exercise or sports competitions, the sweat produced by the human body is difficult to be quickly discharged through the human body, causing clothes to stick to the skin, heat, and even a sense of oppression. Therefore, the moisture absorption and perspiration treatment of polyester fabrics is very important. After the polymerization of polyethylene glycol 400 (PEG) and isocyanoethyl methacrylate (IEM), there are a large number of ether bonds. The oxygen atoms can easily form hydrogen bonds with water molecules to improve wettability. Moreover, it has a low cost and has great application value. It can be used as a hydrophilic agent to achieve the purpose of moisture conduction.

[0003] Graphene oxide (GO) has a large specific surface area and is widely used in textiles due to its thermal conductivity, electrical conductivity, electromagnetic shielding, flame retardancy and antibacterial properties. In order to accelerate the heat dissipation between the skin and clothes and the evaporation of gaseous sweat, thermal conductive finishing is required to improve its wearing comfort, so GO is selected to modify polyester. Most applications of graphene oxide on fabrics rely on physical bonding and are not very durable. How to improve the bonding strength between GO and polyester is particularly important. Summary of the invention

[0004] The embodiment of the present invention provides a unidirectional moisture conduction method for foam polyester fabric, so as to solve the problem that most applications of graphene oxide on fabrics in the prior art rely on physical bonding and have low durability.

[0005] The embodiment of the present invention discloses the following technical solution:

[0006] A one-way moisture conduction method for polyester fabric using a foam method, comprising:

[0007] Polyethylene glycol-400 and isocyanoethyl methacrylate are mixed uniformly at a preset volume ratio, a hydrophilic agent is synthesized under the action of a catalyst, and the hydrophilic agent is mixed uniformly with 2-butanone at a preset mass ratio to obtain a hydrophilic finishing liquid;

[0008] The graphene oxide is added into anhydrous ethanol for dispersion, a protective gas is introduced to purify the graphene oxide dispersion to obtain the graphene oxide dispersion, 3-mercaptopropyltriethoxysilane and acetic acid are added into the graphene oxide dispersion and stirred evenly, acetone is added for reaction and then centrifuged for dispersion, and the centrifuged product is washed and dried to obtain mercapto-functionalized graphene oxide;

[0009] The thiol-functionalized graphene oxide is added to anhydrous ethanol for ultrasonic dispersion, and then a hydrazine hydrate solution is added dropwise under nitrogen protection to react with the thiol-functionalized graphene oxide after ultrasonic dispersion, and the obtained solid product is washed and dried to obtain MPTES-functionalized reduced graphene oxide;

[0010] The polyester fabric is heated in a sodium hydroxide solution, the heated polyester fabric is washed and dried, and then immersed in a 3-mercaptopropyltriethoxysilane and ethanol aqueous solution, and the immersed polyester fabric is dried to obtain a mercaptan-modified polyester fabric;

[0011] After ultrasonically dispersing the MPTES-functionalized reduced graphene oxide and 2,2-dimethoxy-2-phenylphenethylphenol in the hydrophilic finishing liquid, a foaming agent and a foam stabilizer are added to obtain a foam hydrophilic finishing agent;

[0012] A foaming machine is used to foam a foam hydrophilic finishing agent, and the foam generated by the foaming is applied to the surface of the mercaptan-modified polyester fabric under the irradiation of ultraviolet light. The mercaptan-modified polyester fabric is washed, pre-baked and baked to obtain a unidirectional moisture-conducting polyester fabric.

[0013] Furthermore: the preset volume ratio is 1:2, the preset mass ratio is 1.1:2-1.4:2, and the temperature of the synthetic hydrophilic agent is 80°C.

[0014] Further: the ratio of the mass of the graphene oxide to the volume of anhydrous ethanol in the step of obtaining thiol-functionalized graphene oxide is 1.5:1-2:1, the ratio of the mass of the graphene oxide to the volume of the 3-mercaptopropyltriethoxysilane in the step of obtaining thiol-functionalized graphene oxide is 15:1-25:1, the ratio of the mass of the graphene oxide to the volume of the acetic acid is 30:1-200:3, the ratio of the mass of the graphene oxide to the volume of the acetone is 12:1-22:1, the ratio of the mass of the graphene oxide to the volume of the anhydrous ethanol in the step of obtaining MPTES-functionalized reduced graphene oxide is 1.8:1-2:1, the ratio of the mass of the graphene oxide to the volume of the hydrazine hydrate is 12:1-20:1, and the mass percentage of hydrazine hydrate in the hydrazine hydrate solution is 85%, wherein the unit of mass is g and the unit of volume is ml.

[0015] Further: In the step of obtaining thiol-functionalized graphene oxide, the purification time is 5 minutes, the time for adding 3-mercaptopropyltriethoxysilane and acetic acid to the dispersion of graphene oxide and stirring evenly is 24 hours, the time for reacting with the acetone is 6 hours, the temperature for drying the centrifuge is 60°C, and the time for drying the centrifuge is 8 hours.

[0016] Further: In the step of obtaining MPTES-functionalized reduced graphene oxide, the ultrasonic dispersion time is 30 minutes, the drying temperature of the heated polyester fabric is 100°C, the drying time of the heated polyester fabric is 10 minutes, the reaction time of the hydrazine hydrate solution and the ultrasonically dispersed thiol-functionalized graphene oxide is 6 hours, the drying temperature is 50°C, and the drying time is 10 hours.

[0017] Further: in the step of obtaining the thiol-modified polyester fabric, the heating temperature is 80° C., the heating time is 30 min, the drying temperature of the immersed polyester fabric is 120° C., the drying time of the immersed polyester fabric is 10 min, the mass percentage of sodium hydroxide in the sodium hydroxide solution is 200 g / L, the mass concentration of 3-mercaptopropyltriethoxysilane is 4-6wt%, the volume of ethanol and distilled water in the ethanol aqueous solution is 4:1, the ratio of the mass of the polyester fabric to the volume of the sodium hydroxide solution is 1:10, the ratio of the mass of the polyester fabric to the volume of the 3-mercaptopropyltriethoxysilane is 1:10, and the ratio of the mass of the polyester fabric to the volume of the ethanol aqueous solution is 1:10, wherein the unit of mass is g and the unit of volume is ml.

[0018] Further: the mass concentration of the foaming agent is 8-14 g / L, the mass concentration of the foam stabilizer is 2-4 g / L, the mass concentration of the foam hydrophilic finishing agent is 120-150 g / L, the mass ratio of the MPTES-functionalized reduced graphene oxide to the 2,2-dimethoxy-2-phenylphenylethylphenol is 500:1-1100:1, the mass ratio of the MPTES-functionalized reduced graphene oxide to the volume of the hydrophilic finishing liquid is 1:1-1.1:1, the mass ratio of the MPTES-functionalized reduced graphene oxide to the foaming agent is 1000:7-275:1, and the mass ratio of the MPTES-functionalized reduced graphene oxide to the foam stabilizer is 500:1-1100:1, wherein the unit of mass is g and the unit of volume is ml.

[0019] Further: the power of the ultraviolet light is 500W, the irradiation distance is 10cm, and the irradiation time is 30min.

[0020] Further: the pre-baking temperature is 80-95°C, the pre-baking time is 8-12 minutes, the baking temperature is 150-180°C, the baking time is 60-90 seconds, and the mass ratio of the thiol-modified polyester fabric to the foam hydrophilic finishing agent is 1:2.4.

[0021] Further: the catalyst is dibutyltin diformate, the foaming agent is selected from at least one of the following: decyl glucoside, sodium dodecyl sulfate, and the foam stabilizer is sodium alginate.

[0022] Thus, in the embodiment of the present invention, the polyester thiol is modified to have -SH groups through reliable, efficient and selective chemical reactions, and the GO thiol is functionalized, and the two are tightly combined by using the "thiol-ene" click reaction. The foam finishing technology is used as a processing method, and the M-rGO containing a hydrophilic agent and thermal conductivity is applied to the polyester surface to achieve the difference in the absorption and conduction capacity of the inner and outer surfaces of the polyester to prepare a unidirectional moisture-conducting and thermally conductive polyester fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0024] Figure 1 The present invention is a flowchart of a foam polyester fabric unidirectional moisture conduction method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The embodiment of the present invention discloses a foam polyester fabric unidirectional moisture conduction method to prepare a foam-finished polyester containing a hydrophilic agent / thiol-modified reduced graphene oxide with good unidirectional moisture conduction and improved thermal conductivity. It should be understood that in the method of the embodiment of the present invention, if the temperature is not limited, it can be carried out at room temperature. Figure 1 As shown, the method of the embodiment of the present invention includes the following steps:

[0027] Step S101: polyethylene glycol-400 and isocyanoethyl methacrylate are mixed evenly at a preset volume ratio, a hydrophilic agent is synthesized under the action of a catalyst, and then the hydrophilic agent and 2-butanone are mixed evenly at a preset mass ratio to obtain a hydrophilic finishing liquid.

[0028] Specifically, the preset volume ratio is 1:2, because the isocyanoethyl methacrylate molecule contains an isocyanate group (NCO), which can react with the two hydroxyl groups (-OH) at the head and tail of the polyethylene glycol macromolecule, which is beneficial to improve the efficiency of double bond formation and achieve a higher reaction rate and conversion rate. The preset mass ratio is 1.1:2 to 1.4:2. According to the density calculation of isocyanoethyl methacrylate and polyethylene glycol, a better mass ratio can be obtained, which helps to promote the reaction in the direction of generating the target product and improve the yield and purity of the product. The catalyst is dibutyltin dicarboxylate DBTDC.

[0029] In a specific embodiment, the amount of graphene oxide used is 180-220 mg.

[0030] Step S102: adding graphene oxide to anhydrous ethanol for dispersion, introducing protective gas to purify to obtain a dispersion of graphene oxide, adding 3-mercaptopropyltriethoxysilane and acetic acid to the dispersion of graphene oxide and stirring evenly, adding acetone for reaction and then centrifuging to disperse, washing and drying the centrifuge to obtain thiol-functionalized graphene oxide.

[0031] Specifically, the ratio of the mass of graphene oxide to the volume of anhydrous ethanol in step S102 is 1.5:1 to 2:1, the ratio of the mass of graphene oxide to the volume of 3-mercaptopropyltriethoxysilane in step S102 is 15:1 to 25:1, the ratio of the mass of graphene oxide to the volume of acetic acid in step S102 is 30:1 to 200:3, and the ratio of the mass of graphene oxide to the volume of acetone is 12:1 to 22:1. The unit of mass is g, and the unit of volume is ml. When the volume ratio of ethanol to the mass ratio of graphene oxide is too low, graphene oxide may not be fully dispersed, resulting in agglomeration. Considering the modification effect and economic cost, within this ratio range, graphene oxide can be evenly dispersed in anhydrous ethanol to form a stable dispersion; when the volume ratio of MPTES to the mass ratio of graphene oxide is too low, the degree of thiolization is insufficient, affecting the functionalization effect. Considering the dispersion effect and economic cost, within this ratio range, MPTES can fully react with the hydroxyl groups on the surface of graphene oxide to form a stable thiol functionalized structure; when the volume ratio of acetic acid to the mass ratio of graphene oxide is too low, the catalytic effect is insufficient, which may lead to incomplete reaction. Considering the catalytic effect and economic cost, within this ratio range, acetic acid can effectively catalyze the reaction between MPTES and graphene oxide, improving the reaction efficiency and product purity. The addition of acetone helps the mixing and dispersion of the reactants in the solution, making it easier for MPTES molecules to contact and react with the surface of graphene oxide.

[0032] In a specific embodiment, the amount of anhydrous ethanol is 100-120 ml, the amount of MPTES is 8-12 ml, the amount of acetic acid is 3-6 ml, and the amount of acetone is 100-150 ml.

[0033] Specifically, the purification time is 5 minutes, the time for adding 3-mercaptopropyltriethoxysilane and acetic acid to the dispersion of graphene oxide and stirring evenly is 24 hours, the time for reacting with acetone is 6 hours, the temperature for drying the centrifuge is 60° C., and the time for drying the centrifuge is 8 hours.

[0034] Step S103: After adding the thiol-functionalized graphene oxide to anhydrous ethanol for ultrasonic dispersion, a hydrazine hydrate solution is added dropwise under nitrogen protection to react with the thiol-functionalized graphene oxide after ultrasonic dispersion, and the obtained solid product is washed and dried to obtain MPTES-functionalized reduced graphene oxide.

[0035] Specifically, the ratio of the mass of graphene oxide to the volume of anhydrous ethanol in step S103 is 1.8:1 to 2:1, the ratio of the mass of graphene oxide to the volume of hydrazine hydrate is 12:1 to 20:1, and the mass percentage of hydrazine hydrate in the hydrazine hydrate solution is 85%, wherein the unit of mass is mg and the unit of volume is ml. When the mass ratio of graphene oxide to the volume of anhydrous ethanol is controlled between 1.8:1 and 2:1, MPTES-GO can be uniformly and stably dispersed in ethanol to form a uniform dispersion system; when the mass ratio of graphene oxide to the volume of hydrazine hydrate is controlled between 12:1 and 20:1, the reduction reaction is fully carried out, and the cost increase and possible side reactions caused by excessive use of hydrazine hydrate are avoided.

[0036] In a specific embodiment, the amount of anhydrous ethanol used is 100 ml, and the amount of hydrazine hydrate solution used is 10-15 ml.

[0037] Specifically, the ultrasonic dispersion time is 30 minutes, the reaction time of the hydrazine hydrate solution and the ultrasonically dispersed thiol-functionalized graphene oxide is 6 hours, the drying temperature is 50° C., and the drying time is 10 hours.

[0038] Step S104: heating the polyester fabric in a sodium hydroxide solution, washing and drying the heated polyester fabric, and then soaking it in a solution of 3-mercaptopropyltriethoxysilane and ethanol, and drying the soaked polyester fabric to obtain a thiol-modified polyester fabric.

[0039] Specifically, the heating temperature is 80° C., the heating time is 30 min, the drying temperature of the heated polyester fabric is 100° C., the drying time of the heated polyester fabric is 10 min, the drying temperature of the immersed polyester fabric is 120° C., the drying time of the immersed polyester fabric is 10 min, the mass percentage of sodium hydroxide in the sodium hydroxide solution is 200 g / L, the mass concentration of 3-mercaptopropyltriethoxysilane is 4-6wt%, the volume of ethanol and distilled water in the ethanol aqueous solution is 4:1, the ratio of the mass of the polyester fabric to the volume of the sodium hydroxide solution is 1:10, the ratio of the mass of the polyester fabric to the volume of the 3-mercaptopropyltriethoxysilane is 1:10, and the ratio of the mass of the polyester fabric to the volume of the ethanol aqueous solution is 1:10, wherein the unit of mass is g and the unit of volume is ml.

[0040] In a specific embodiment, the mass of the polyester fabric is 10 g, the amount of the sodium hydroxide solution is 100 ml, and the amounts of 3-mercaptopropyltriethoxysilane and the ethanol aqueous solution are 100 ml respectively.

[0041] Step S105: After ultrasonically dispersing the MPTES-functionalized reduced graphene oxide and 2,2-dimethoxy-2-phenylphenethylphenol in a hydrophilic finishing liquid, a foaming agent and a foam stabilizer are added to obtain a foam hydrophilic finishing agent.

[0042] Specifically, the foaming agent is selected from at least one of the following: decyl glucoside and sodium lauryl sulfate, and the foam stabilizer is sodium alginate.

[0043] Specifically, the mass concentration of the foaming agent is 8-14 g / L, the mass concentration of the foam stabilizer is 2-4 g / L, the mass concentration of the foam hydrophilic finishing agent is 120-150 g / L, the mass ratio of MPTES-functionalized reduced graphene oxide and 2,2-dimethoxy-2-phenylbenzeneethylphenol is 500:1-1100:1, the mass ratio of MPTES-functionalized reduced graphene oxide and the volume of the hydrophilic finishing liquid is 1:1-1.1:1, the mass ratio of MPTES-functionalized reduced graphene oxide and the foaming agent is 1000:7-275:1, and the mass ratio of MPTES-functionalized reduced graphene oxide and the foam stabilizer is 500:1-1100:1, wherein the unit of mass is g and the unit of volume is ml.

[0044] In a specific embodiment, the mass of MPTES-functionalized reduced graphene oxide is 200-220 g, the amount of 2,2-dimethoxy-2-phenylbenzene ethylphenol is 0.2-0.4 g, the amount of hydrophilic finishing liquid is 200 ml, the amount of foaming agent is 1.6-2.8 g, and the amount of foam stabilizer is 0.4-0.8 g. The amount of foaming agent and foam stabilizer can ensure the generation of stable and lasting foam during the treatment process, thereby improving the treatment effect and uniformity.

[0045] Step S106: using a foaming machine to foam the foam hydrophilic finishing agent, applying the foam generated by the foaming to the surface of the thiol-modified polyester fabric under the irradiation of ultraviolet light, washing the thiol-modified polyester fabric, pre-baking and baking, and obtaining a unidirectional moisture-conducting polyester fabric.

[0046] The mass ratio of mercaptan-modified polyester fabric to the foam hydrophilic finishing agent is 1:2.4.

[0047] In a specific embodiment, 10 g of mercaptan-modified polyester fabric uses 24 g of the foam hydrophilic finishing agent.

[0048] Specifically, the power of ultraviolet light is 500W, the irradiation distance is 10cm, the irradiation time is 30min, the pre-baking temperature is 80-95℃, the pre-baking time is 8-12min, the baking temperature is 150-180℃, and the baking time is 60-90s. The 500W ultraviolet light power can ensure efficiency while avoiding unnecessary damage to the finishing agent or fabric due to excessive power; the 10cm irradiation distance and 30min irradiation time allow the ultraviolet light to evenly and effectively irradiate the fabric surface to prevent local overheating of the fabric; the pre-baking time, baking time and temperature range can fully cure the finishing agent to form a stable coating, while avoiding excessive temperature and long time that may cause the finishing agent to decompose or the fabric to become hard and yellow.

[0049] The principles of the embodiments of the present invention are as follows:

[0050] Polyethylene glycol and isocyanoethyl methacrylate are polymerized to obtain a hydrophilic finishing liquid PEG-2IEM containing a large number of ether bonds, and graphene oxide is functionalized with thiol groups to obtain powdered M-rGo. The hydrophilic finishing liquid PEG-2IEM and powdered M-rGo are then ultrasonically dispersed, and a foaming agent and a foam stabilizer are added to prepare a foam slurry with a certain foaming ratio. The polyester is treated with alkali to break the ester bond and form a large number of hydrogen groups, and then reacted with MPTES in an ethanol aqueous solution to make the polyester have -SH bonds. Green and degradable non-ionic surfactant was selected as foaming agent, sodium alginate as foam stabilizer, and foam containing hydrophilic agents PEG-2IEM and M-rGo was prepared on the polyester fabric modified with MPTES thiol and irradiated with ultraviolet light. Through the "thiol-ene" chemical click reaction, a polyester fabric with hydrophilicity on one side was obtained. The difference in hydrophilicity and hydrophobicity on both sides of the polyester fabric was utilized to achieve unidirectional moisture conduction performance. The foam finishing and click reaction greatly improved the unidirectional hydrophobicity, thermal conductivity and softness of the polyester fabric.

[0051] The polyester prepared by the embodiment of the present invention and treated with hydrophilic agent / thiol-modified reduced graphene oxide foam has good unidirectional moisture conductivity and thermal conductivity. PEG-2IEM has a large number of ether bonds, which can form hydrogen bonds with water molecules to achieve the purpose of rapid wetting. The polyester fabric modified by thiol can undergo a click reaction with the thiol-modified reduced graphene oxide, which is efficient and firmly bonded. Applying a foam containing a hydrophilic agent on the surface of the polyester through foam finishing can reduce the amount of liquid carried, reduce the energy consumed during drying, reduce the tension received by the fabric during finishing, and reduce the decline in mechanical properties. After finishing, the polyester fabric has good wash resistance, the wetting energy level (WT) reaches level 4, the thermal conductivity rate is improved, and the temperature rises by about 2.8°C within 50s compared with the untreated polyester.

[0052] The technical solution of the present invention is further described below through specific embodiments.

[0053] Example 1

[0054] (1) Polyethylene glycol (PEG)-400 and isocyanoethyl methacrylate (IEM) are uniformly mixed in a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent is added into a closed reactor containing 0.3 wt% dibutyltin dicarboxylate (DBTDC), and the mixture is stirred at 80°C for reaction to synthesize the hydrophilic agent, the hydrophilic agent is mixed with 2-butanone, and hydrophilic finishing solutions (PEG-2IEM) of different concentrations are prepared in a preset mass ratio of 1.1:2 to 1.4:2.

[0055] (2) 180 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 8 ml of 3-mercaptopropyltriethoxysilane (MPTES) and 3 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 100 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain mercapto-functionalized graphene oxide powder (M-Go).

[0056] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 10 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained solid product (M-rGO) was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0057] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 4 wt % MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of 4:1 of ethanol to distilled water. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0058] (5) After ultrasonically dispersing 210 g of MPTES-functionalized reduced graphene oxide and 0.3 g of 1 wt% 2,2-dimethoxy-2-phenylbenzene ethylphenol in 200 ml of hydrophilic finishing liquid, a reduced graphene oxide finishing agent (rGO / PEG-2IEM) was obtained, and 1.6 g of a foaming agent, decyl glucoside, and 0.4 g of a foam stabilizer, sodium alginate, were added to obtain a foam hydrophilic finishing agent (wherein, since the reasonable range of the amount of the foaming agent and the foam stabilizer was calculated based on the volume of the hydrophilic finishing liquid and the concentration of each reagent in the previous article, any concentration thereof can be selected to prepare a foam finishing agent with good effect).

[0059] (6) The foam hydrophilic finishing agent was foamed by a foaming machine and irradiated for 30 minutes under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam generated by the foaming was applied to the surface of 10 g of thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 80° C. for 8 minutes, and then baked at 150° C. for 60 seconds to obtain a unidirectional moisture-conducting polyester fabric.

[0060] Example 2

[0061] (1) PEG-400 and IEM were mixed uniformly at a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent was added to a closed reactor containing 0.3 wt% DBTDC, and stirred at 80°C for reaction to synthesize a hydrophilic agent, the hydrophilic agent was mixed with 2-butanone, and PEG-2IEM of different concentrations was prepared according to a preset mass ratio of 1.1:2 to 1.4:2.

[0062] (2) 190 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 9 ml of MPTES and 4 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 10 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain M-Go.

[0063] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 11 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained M-rGO was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0064] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 5 wt% MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of ethanol to distilled water of 4:1. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0065] (5) 200 g of MPTES-functionalized reduced graphene oxide and 0.2 g of 2,2-dimethoxy-2-phenylbenzene ethylphenol with a mass concentration of 1 wt% were ultrasonically dispersed in 200 ml of hydrophilic finishing liquid to obtain rGO / PEG-2IEM, and 1.7 g of foaming agent decyl glucoside and 0.5 g of foam stabilizer sodium alginate were added to obtain a foam hydrophilic finishing agent.

[0066] (6) 24 g of a foam hydrophilic finishing agent was foamed using a foaming machine and irradiated for 30 min under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam produced by the foaming was applied to the surface of 10 g of a thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 85° C. for 9 min, and then baked at 160° C. for 70 s to obtain a unidirectional moisture-conducting polyester fabric.

[0067] Example 3

[0068] (1) PEG-400 and IEM were mixed uniformly at a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent was added to a closed reactor containing 0.3 wt% DBTDC, and stirred at 80°C for reaction to synthesize a hydrophilic agent, the hydrophilic agent was mixed with 2-butanone, and PEG-2IEM of different concentrations was prepared according to a preset mass ratio of 1.1:2 to 1.4:2.

[0069] (2) 200 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 10 ml of MPTES and 5 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 15 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain M-Go.

[0070] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 12 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained M-rGO was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0071] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 5 wt% MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of ethanol to distilled water of 4:1. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0072] (5) 220 g of MPTES-functionalized reduced graphene oxide and 0.4 g of 1 wt% 2,2-dimethoxy-2-phenylbenzene phenol were ultrasonically dispersed in 200 ml of hydrophilic finishing liquid to obtain rGO / PEG-2IEM, and 1.8 g of foaming agent decyl glucoside and 0.6 g of foam stabilizer sodium alginate were added to obtain a foam hydrophilic finishing agent.

[0073] (6) 24 g of a foam hydrophilic finishing agent was foamed using a foaming machine and irradiated for 30 min under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam produced by the foaming was applied to the surface of 10 g of a thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 90° C. for 10 min, and then baked at 170° C. for 80 s to obtain a unidirectional moisture-conducting polyester fabric.

[0074] Example 4

[0075] (1) PEG-400 and IEM were mixed uniformly at a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent was added to a closed reactor containing 0.3 wt% DBTDC, and stirred at 80°C for reaction to synthesize a hydrophilic agent, the hydrophilic agent was mixed with 2-butanone, and PEG-2IEM of different concentrations was prepared according to a preset mass ratio of 1.1:2 to 1.4:2.

[0076] (2) 210 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 11 ml of MPTES and 6 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 10 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain M-Go.

[0077] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 11 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained M-rGO was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0078] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 7 wt % MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of ethanol to distilled water of 4:1. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0079] (5) 210 g of MPTES-functionalized reduced graphene oxide and 0.3 g of 1 wt% 2,2-dimethoxy-2-phenylbenzene ethylphenol were ultrasonically dispersed in 200 ml of hydrophilic finishing liquid to obtain rGO / PEG-2IEM, and 1.9 g of foaming agent decyl glucoside and 0.7 g of foam stabilizer sodium alginate were added to obtain a foam hydrophilic finishing agent.

[0080] (6) 24 g of a foam hydrophilic finishing agent was foamed using a foaming machine and irradiated for 30 min under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam produced by the foaming was applied to the surface of 10 g of a thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 95° C. for 12 min, and then baked at 180° C. for 90 s to obtain a unidirectional moisture-conducting polyester fabric.

[0081] Comparative Example 1

[0082] (1) PEG-400 and IEM were mixed uniformly at a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent was added to a closed reactor containing 0.3 wt% DBTDC, and stirred at 80°C for reaction to synthesize a hydrophilic agent, the hydrophilic agent was mixed with 2-butanone, and PEG-2IEM of different concentrations was prepared according to a preset mass ratio of 1.1:2 to 1.4:2.

[0083] (2) 180 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 8 ml of MPTES and 3 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 10 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain M-Go.

[0084] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 10 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained M-rGO was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0085] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 4 wt % MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of 4:1 of ethanol to distilled water. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0086] (5) 210 g of MPTES-functionalized reduced graphene oxide and 0.3 g of 2,2-dimethoxy-2-phenylbenzene ethylphenol with a mass concentration of 1 wt% were ultrasonically dispersed in 200 ml of hydrophilic finishing liquid to obtain rGO / PEG-2IEM, and 1.6 g of a foaming agent, sodium dodecyl sulfate, and 0.4 g of a foam stabilizer, sodium alginate, were added to obtain a foam hydrophilic finishing agent.

[0087] (6) 24 g of a foam hydrophilic finishing agent was foamed using a foaming machine and irradiated for 30 min under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam produced by the foaming was applied to the surface of 10 g of a thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 80° C. for 8 min, and then baked at 150° C. for 60 s to obtain a unidirectional moisture-conducting polyester fabric.

[0088] Comparative Example 2

[0089] (1) PEG-400 and IEM were mixed uniformly at a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent was added to a closed reactor containing 0.3 wt% DBTDC, and stirred at 80°C for reaction to synthesize a hydrophilic agent, the hydrophilic agent was mixed with 2-butanone, and PEG-2IEM of different concentrations was prepared according to a preset mass ratio of 1.1:2 to 1.4:2.

[0090] (2) 190 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 9 ml of MPTES and 4 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 10 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain M-Go.

[0091] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 11 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained M-rGO was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0092] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 5 wt% MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of ethanol to distilled water of 4:1. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0093] (5) 210 g of MPTES-functionalized reduced graphene oxide and 0.3 g of 2,2-dimethoxy-2-phenylbenzene ethylphenol with a mass concentration of 1 wt% were ultrasonically dispersed in 200 ml of hydrophilic finishing liquid to obtain rGO / PEG-2IEM, and 1.7 g of a foaming agent, sodium dodecyl sulfate, and 0.5 g of a foam stabilizer, sodium alginate, were added to obtain a foam hydrophilic finishing agent.

[0094] (6) 24 g of a foam hydrophilic finishing agent was foamed using a foaming machine and irradiated for 30 min under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam produced by the foaming was applied to the surface of 10 g of a thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 85° C. for 9 min, and then baked at 160° C. for 70 s to obtain a unidirectional moisture-conducting polyester fabric.

[0095] Comparative Example 3

[0096] (1) PEG-400 and IEM were mixed uniformly at a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent was added to a closed reactor containing 0.3 wt% DBTDC, and stirred at 80°C for reaction to synthesize a hydrophilic agent, the hydrophilic agent was mixed with 2-butanone, and PEG-2IEM of different concentrations was prepared according to a preset mass ratio of 1.1:2 to 1.4:2.

[0097] (2) 200 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 10 ml of MPTES and 5 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 10 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain M-Go.

[0098] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 12 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained M-rGO was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0099] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 6 wt % MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of ethanol to distilled water of 4:1. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0100] (5) After ultrasonically dispersing 210 g of MPTES-functionalized reduced graphene oxide and 0.3 g of 2,2-dimethoxy-2-phenylbenzene ethylphenol with a mass concentration of 1 wt% in 200 ml of hydrophilic finishing liquid, rGO / PEG-2IEM was obtained, and 1.8 g of a foaming agent, sodium dodecyl sulfate, and 0.6 g of a foam stabilizer, sodium alginate, were added to obtain a foam hydrophilic finishing agent.

[0101] (6) 24 g of a foam hydrophilic finishing agent was foamed using a foaming machine and irradiated for 30 min under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam produced by the foaming was applied to the surface of 10 g of a thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 90° C. for 10 min, and then baked at 170° C. for 80 s to obtain a unidirectional moisture-conducting polyester fabric.

[0102] Comparative Example 4

[0103] (1) PEG-400 and IEM were mixed uniformly at a volume ratio of 1:2 to obtain a hydrophilic finishing agent, the hydrophilic finishing agent was added to a closed reactor containing 0.3 wt% DBTDC, and stirred at 80°C for reaction to synthesize a hydrophilic agent, the hydrophilic agent was mixed with 2-butanone, and PEG-2IEM of different concentrations was prepared according to a preset mass ratio of 1.1:2 to 1.4:2.

[0104] (2) 210 mg of graphene oxide was added to a three-necked flask containing 100 ml of anhydrous ethanol for ultrasonic dispersion, and nitrogen was introduced for purification for 5 minutes to expel the air in the flask to obtain a dispersion of graphene oxide. 11 ml of MPTES and 6 ml of acetic acid were added dropwise to the dispersion of graphene oxide, stirred at room temperature for 24 hours, and then 10 ml of acetone was slowly added to react for 6 hours and then centrifuged for dispersion. The centrifuge was washed with anhydrous ethanol to remove residual MPTES, and the washed centrifuge was dried in a vacuum oven at 60°C for 8 hours to obtain M-Go.

[0105] (3) M-Go was added to 100 ml of anhydrous ethanol and ultrasonically dispersed for 30 minutes to form a uniform dispersion. Under nitrogen protection at room temperature, 10 ml of 85% hydrazine hydrate solution was slowly added dropwise to react with the ultrasonically dispersed M-Go for 6 hours. The addition and reaction process were continuously stirred. The obtained M-rGO was washed with anhydrous ethanol and dried in a vacuum oven at 50°C for 10 hours to obtain MPTES-functionalized reduced graphene oxide.

[0106] (4) 10 g of polyester fabric was heated at 80° C. for 30 min in 100 ml of a 200 g / L sodium hydroxide solution to cleave the ester bonds and generate hydroxyl groups. The heated polyester fabric was washed, dried at 100° C. for 10 min, and then immersed in 100 ml of a 7 wt % MPTES solution and 100 ml of an ethanol aqueous solution having a volume ratio of ethanol to distilled water of 4:1. The immersed polyester fabric was dried at 120° C. for 10 min to obtain a thiol-modified polyester fabric.

[0107] (5) 210 g of MPTES-functionalized reduced graphene oxide and 0.3 g of 2,2-dimethoxy-2-phenylbenzene ethylphenol with a mass concentration of 1 wt% were ultrasonically dispersed in 200 ml of hydrophilic finishing liquid to obtain rGO / PEG-2IEM, and 1.9 g of a foaming agent, sodium dodecyl sulfate, and 0.7 g of a foam stabilizer, sodium alginate, were added to obtain a foam hydrophilic finishing agent.

[0108] (6) 24 g of a foam hydrophilic finishing agent was foamed using a foaming machine and irradiated for 30 min under ultraviolet light with a power of 50 W and an irradiation distance of 10 cm. The foam produced by the foaming was applied to the surface of 10 g of a thiol-modified polyester fabric. The thiol-modified polyester fabric was then washed with water and pre-baked in a vacuum drying oven at 95° C. for 12 min, and then baked at 180° C. for 90 s to obtain a unidirectional moisture-conducting polyester fabric.

[0109] The modified polyester prepared in Examples 1-3 and Comparative Examples 1-3 was subjected to a wetting test, and the specific test results are shown in Table 1 below.

[0110] Table 1 Liquid moisture management properties of fabrics

[0111]

[0112] As shown in Table 1, the addition ratio of hydrophilic agent and thiol-modified compound is different, and the moisture conduction properties are also different. Wetting time refers to the time when the top and bottom surfaces of the fabric begin to be wetted. A lower value means that the fabric has less time to absorb water. The WT value of the fabric treated with rGO / PEG-2IEM, especially the outer surface, reaches level 4, which is much lower than that of the untreated PET fabric, which is mainly due to the presence of the PEG film. There are a large number of ether bonds in the polyethylene glycol molecular chain, and these oxygen atoms can easily form hydrogen bonds with water molecules, making the PET fabric more easily wetted. It shows that the fabric can be wetted by sweat at a "very fast" speed. The absorption rate reflects the ability of the top and bottom surfaces of the fabric to absorb water. The bottom AR of the fabric treated with rGO / PEG-2IEM reaches level 4, indicating that the outer surface of the fabric has a very good ability to absorb internal sweat. SS is also a direct sign of the fabric's ability to dry quickly. The faster the water diffuses on the surface of the fabric, the larger the wetted area and the faster the water evaporates. The internal and external SS of the rGO / PEG-2IEM treated PET fabrics both reached level 4, indicating that the absorbed sweat can diffuse on the fabric surface and evaporate quickly. The unidirectional transport capacity is the difference in the accumulated moisture content between the two surfaces of the fabric during the test, which also directly indicates the moisture absorption and perspiration capacity of the fabric, allowing the wetted liquid to move to the outside of the fabric. The OWTC of the rGO / PEG-2IEM treated PET fabric is about 130, indicating that the unidirectional water transfer behavior is good, and the PEG film enhances the capillary action between the fiber surface and the fibers, thereby increasing the unidirectional moisture conduction capacity.

[0113] The thermal conductivity of the modified polyester prepared in Examples 1-3 and Comparative Examples 1-3 was tested. The specific test results are shown in Table 2 below.

[0114] Table 2 Changes in fabric surface temperature and rGO / PEG-2IEM treated fabric time

[0115] Sample temperature 10 20 30 40 50 Comparative Example 1 26.01 28.93 31.40 32.60 32.64 Comparative Example 2 25.86 28.69 31.73 32.03 32.03 Comparative Example 3 26.45 28.25 31.43 33.69 33.93 Example 1 27.35 29.22 31.25 32.33 32.74 Example 2 27.88 29.08 31.48 32.98 33.02 Example 3 28.40 31.21 32.94 33.41 33.46

[0116] As shown in Table 2, the surface temperature of the polyester fabric treated with the two foaming agents at different times within 50 seconds, the surface temperature of the fabric treated with reduced graphene oxide / PEG-2IEM increases with time, taking Example 3 as an example, reaching about 28.40°C in 10 seconds and 31.21°C in 20 seconds, proving that the fabric has better thermal conductivity under the action of reduced graphene oxide. The higher the surface temperature, the more heat the fabric absorbs, resulting in faster evaporation of sweat.

[0117] As the amount of hydrophilic finishing agent increases, the wetting time shows a decreasing trend. The reason is that the hydrophilic finishing agent film formed on the fabric surface is more complete, which is conducive to faster and more even distribution of water on the fabric surface.

[0118] As the amount of graphene oxide increases, the thermal conductivity shows a trend of first increasing and then decreasing. The reason is that when the content of graphene oxide is too high, it may cause uneven distribution in the fabric and reduce heat transfer.

[0119] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A foam polyester fabric unidirectional moisture conduction method, characterized in that: include: Polyethylene glycol-400 and isocyanoethyl methacrylate are mixed uniformly at a preset volume ratio, a hydrophilic agent is synthesized under the action of a catalyst, and the hydrophilic agent is mixed uniformly with 2-butanone at a preset mass ratio to obtain a hydrophilic finishing liquid; The graphene oxide is added into anhydrous ethanol for dispersion, a protective gas is introduced to purify the graphene oxide dispersion to obtain the graphene oxide dispersion, 3-mercaptopropyltriethoxysilane and acetic acid are added into the graphene oxide dispersion and stirred evenly, acetone is added for reaction and then centrifuged for dispersion, and the centrifuged product is washed and dried to obtain mercapto-functionalized graphene oxide; The thiol-functionalized graphene oxide is added to anhydrous ethanol for ultrasonic dispersion, and then a hydrazine hydrate solution is added dropwise under nitrogen protection to react with the thiol-functionalized graphene oxide after ultrasonic dispersion, and the obtained solid product is washed and dried to obtain MPTES-functionalized reduced graphene oxide; The polyester fabric is heated in a sodium hydroxide solution, the heated polyester fabric is washed and dried, and then immersed in a 3-mercaptopropyltriethoxysilane and ethanol aqueous solution, and the immersed polyester fabric is dried to obtain a mercaptan-modified polyester fabric; After ultrasonically dispersing the MPTES-functionalized reduced graphene oxide and 2,2-dimethoxy-2-phenylphenethylphenol in the hydrophilic finishing liquid, a foaming agent and a foam stabilizer are added to obtain a foam hydrophilic finishing agent; A foaming machine is used to foam a foam hydrophilic finishing agent, and the foam generated by the foaming is applied to the surface of the mercaptan-modified polyester fabric under the irradiation of ultraviolet light. The mercaptan-modified polyester fabric is washed, pre-baked and baked to obtain a unidirectional moisture-conducting polyester fabric.

2. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: The preset volume ratio is 1:2, the preset mass ratio is 1.1:2-1.4:2, and the temperature of the synthetic hydrophilic agent is 80°C.

3. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: The ratio of the mass of the graphene oxide to the volume of the anhydrous ethanol in the step of obtaining the thiol-functionalized graphene oxide is 1.5:1-2:1, the ratio of the mass of the graphene oxide to the volume of the 3-mercaptopropyltriethoxysilane in the step of obtaining the thiol-functionalized graphene oxide is 15:1-25:1, the ratio of the mass of the graphene oxide to the volume of the acetic acid is 30:1-200:3, the ratio of the mass of the graphene oxide to the volume of the acetone is 12:1-22:1, the ratio of the mass of the graphene oxide to the volume of the anhydrous ethanol in the step of obtaining the MPTES-functionalized reduced graphene oxide is 1.8:1-2:1, the ratio of the mass of the graphene oxide to the volume of the hydrazine hydrate is 12:1-20:1, and the mass percentage of the hydrazine hydrate in the hydrazine hydrate solution is 85%, wherein the unit of mass is g and the unit of volume is ml.

4. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: In the step of obtaining the thiol-functionalized graphene oxide, the purification time is 5 minutes, the time for adding 3-mercaptopropyltriethoxysilane and acetic acid to the dispersion of graphene oxide and stirring evenly is 24 hours, the time for reacting with the acetone is 6 hours, the temperature for drying the centrifuge is 60° C., and the time for drying the centrifuge is 8 hours.

5. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: In the step of obtaining MPTES-functionalized reduced graphene oxide, the ultrasonic dispersion time is 30 minutes, the reaction time of the hydrazine hydrate solution and the ultrasonically dispersed thiol-functionalized graphene oxide is 6 hours, the drying temperature is 50° C., and the drying time is 10 hours.

6. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: In the step of obtaining the mercaptan-modified polyester fabric, the heating temperature is 80° C., the heating time is 30 min, the drying temperature of the heated polyester fabric is 100° C., the drying time of the heated polyester fabric is 10 min, the drying temperature of the immersed polyester fabric is 120° C., the drying time of the immersed polyester fabric is 10 min, the mass percentage of sodium hydroxide in the sodium hydroxide solution is 200 g / L, the mass concentration of 3-mercaptopropyltriethoxysilane is 4-6wt%, the volume of ethanol and distilled water in the ethanol aqueous solution is 4:1, the ratio of the mass of the polyester fabric to the volume of the sodium hydroxide solution is 1:10, the ratio of the mass of the polyester fabric to the volume of the 3-mercaptopropyltriethoxysilane is 1:10, and the ratio of the mass of the polyester fabric to the volume of the ethanol aqueous solution is 1:10, wherein the unit of mass is g and the unit of volume is ml.

7. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: The mass concentration of the foaming agent is 8 to 14 g / L, the mass concentration of the foam stabilizer is 2 to 4 g / L, the mass concentration of the foam hydrophilic finishing agent is 120 to 150 g / L, the mass ratio of the MPTES-functionalized reduced graphene oxide to the 2,2-dimethoxy-2-phenylphenylethylphenol is 500:1 to 1100:1, the mass ratio of the MPTES-functionalized reduced graphene oxide to the volume of the hydrophilic finishing liquid is 1:1 to 1.1:1, the mass ratio of the MPTES-functionalized reduced graphene oxide to the foaming agent is 1000:7 to 275:1, and the mass ratio of the MPTES-functionalized reduced graphene oxide to the foam stabilizer is 500:1 to 1100:1, wherein the unit of mass is g and the unit of volume is ml.

8. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: The power of the ultraviolet light is 500W, the irradiation distance is 10cm, and the irradiation time is 30min.

9. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: The pre-baking temperature is 80-95° C., the pre-baking time is 8-12 minutes, the baking temperature is 150-180° C., the baking time is 60-90 seconds, and the mass ratio of the thiol-modified polyester fabric to the foam hydrophilic finishing agent is 1:2.

4.

10. The foam polyester fabric unidirectional moisture conduction method according to claim 1, characterized in that: The catalyst is dibutyltin diformate, the foaming agent is selected from at least one of the following: decyl glucoside and sodium dodecyl sulfate, and the foam stabilizer is sodium alginate.

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