Intelligent temperature control western-style overcoat and preparation method thereof

Abstract

The invention relates to the technical field of temperature control clothes, in particular to an intelligent temperature control western-style overcoat and a preparation method thereof. A preparation method of the intelligent temperature-control western-style overcoat comprises the following steps: heating and melting the phase-change material a, adding the graphene oxide and the emulsifier, uniformly stirring, adding the water, and uniformly stirring to obtain a phase-change material emulsion; adding methyl acrylate and 1, 4-butanediol diacrylate into the phase-change material emulsion, dropwise adding an initiator into the phase-change material emulsion, and performing washing and vacuum drying to obtain microcapsules; adding microcapsules and sodium alginate into the heated and molten phase change material b, and uniformly stirring to obtain a phase change core material; adding thermoplastic polyurethane, polyimide and calcium chloride into xylene, and uniformly stirring to obtain a prefabricated shell layer; the prefabricated core material and the prefabricated shell layer are subjected to coaxial spinning forming, soaking, washing and vacuum drying, and the intelligent temperature control fiber is obtained through stretching and shaping; intelligent temperature control fibers and cotton fibers are adopted as warps and wefts respectively, the intelligent temperature control fabric is obtained through spinning, and tailoring, sewing and ironing are conducted.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature-controlled clothing, and in particular to an intelligent temperature-controlled suit coat and a preparation method thereof. Background Art

[0002] With the progress of the times and the development of science and technology, people's aesthetic level and material pursuit are gradually improving, and conventional clothing fabrics can no longer meet the diverse needs of modern people. Different from traditional textiles, functional textiles also have one or more special functions, such as safety protection, thermal and humidity comfort, and health care, which can meet people's specific needs in different occasions.

[0003] Thermal comfort is a basic function of textiles, which directly affects the comfort of human body and is one of the most important factors for consumers to consider when choosing clothing fabrics. Since clothing determines the degree of exchange between the heat generated by the human body and the external environment, it plays an important role in maintaining the thermal comfort of the human body. At present, the main way to achieve the purpose of thermal comfort is to change the raw materials or organizational structure of traditional fabrics to affect the degree of exchange between the heat generated by the human body and the external environment.

[0004] At present, smart clothing has become an emerging product on the market, among which smart heating clothing is the most prominent category in research and development and sales. Traditional heating clothing is mainly made by implanting heating modules into ordinary clothing, or weaving with heated yarns. Heating modules are mainly in the form of sheets and threads. Electronic heating is the current mainstream heating method, which can achieve active temperature control. However, the limitation of this method is that the heating module may affect the comfort and aesthetics of the clothing, and an external power supply is required.

[0005] Existing phase change materials are also used in the temperature regulation of clothing, which can achieve two-way temperature control through liquefaction and solidification. Thermoregulating fabrics are a new type of thermal comfort textiles containing phase change materials inside. They can automatically sense the changes in the external temperature and human body temperature, and respond to the temperature changes by absorbing or releasing heat. Thermoregulating fabrics can provide thermal comfort to the human body while realizing the recycling of thermal energy, which has great research significance.

[0006] The preparation methods of phase change thermostatic textiles include hollow fiber filling, spinning and finishing. Although phase change materials can achieve intelligent thermostatic control, their temperature control effect is limited. In addition, phase change materials are easily lost during washing, which makes them prone to failure, and the production process is complicated. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an intelligent temperature-controlled suit coat and a preparation method thereof.

[0008] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0009] S1. Heat and melt the phase change material a, add graphene oxide and emulsifier and stir evenly, add water at a temperature of 80-100° C., stir evenly to obtain a phase change material emulsion;

[0010] S2. Add methyl acrylate and 1,4-butanediol diacrylate to the phase change material emulsion under stirring, add an initiator dropwise thereto, react at 60-70°C for 1-2h, let stand for 5-10h, yield, wash, and vacuum dry to obtain microcapsules; add the microcapsules and sodium alginate to the heated and melted phase change material b and stir evenly to obtain a phase change core material;

[0011] S3, adding thermoplastic polyurethane, polyimide and calcium chloride into xylene and stirring evenly to obtain a prefabricated shell layer;

[0012] S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, squeezing them into a coagulation bath for spinning, soaking for 10-20 minutes, washing, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0013] S5. Use intelligent temperature control fiber and cotton fiber as warp and weft respectively to weave intelligent temperature control fabric, which is then cut, sewn and ironed.

[0014] Preferably, in S1, the phase change material a is paraffin.

[0015] Preferably, the emulsifier is Span 80 and / or Tween 80.

[0016] Preferably, in S1, the mass ratio of phase change material a, graphene oxide, emulsifier and water is 5-15:1-2:0.1-0.5:30-60.

[0017] Preferably, in S2, the initiator is at least one of ammonium persulfate, sodium persulfate and potassium persulfate.

[0018] Preferably, the phase change material b is n-eicosane.

[0019] Preferably, in S2, the mass ratio of phase change material emulsion, methyl acrylate, 1,4-butanediol diacrylate, initiator, sodium alginate and phase change material b is 36-77:1-4:1-2:0.01-0.1:1-3:30-60.

[0020] Preferably, in S3, the mass ratio of thermoplastic polyurethane, polyimide, calcium chloride and xylene is 10-20:1-3:1-3:50-100.

[0021] Preferably, in S4, the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1-2:1.

[0022] Preferably, in S5, the mass ratio of the intelligent temperature control fiber to the cotton fiber is 1-5:10-20.

[0023] Preferably, in S5, the weight of the intelligent temperature control fabric is 210-240g / m 2 , thickness is 0.6-0.8mm; warp density is 13.5-14.6tex, weft density is 13.2-14.6tex.

[0024] An intelligent temperature-controlled suit coat is prepared by adopting the preparation method of the intelligent temperature-controlled suit coat.

[0025] Beneficial effects:

[0026] The present invention selects phase change materials and wraps them into microcapsules through microencapsulation technology, which can not only reduce the rupture phenomenon in the spinning process, but also can be evenly dispersed in the spinning melt, so that its stability and dispersibility are good, ensuring that the microcapsules can be evenly distributed in the fibers during the spinning process; subsequent post-processing stretching and shaping help to arrange the phase change material microcapsules in the fibers more closely, improve the strength and elasticity of the fibers, and at the same time, the shaping treatment helps to stabilize the shape and performance of the fibers, ensuring that they are not easily deformed during subsequent processing and use.

[0027] Since the heat resistance of the phase change microcapsules obtained in the present invention is relatively poor, the present invention uses phase change materials for microencapsulation and then performs spinning, which can effectively improve the heat resistance of the microcapsules and effectively avoid the breakage of the microcapsules. At the same time, since the volume of the microcapsules changes during the heat absorption and heat dissipation process, the present invention attaches a shell layer to the surface of the microcapsules. During the spinning process, the microcapsules are stably fixed inside the fibers, and the fiber structure is extremely stable. The obtained fabric has good intelligent temperature control performance and can be widely used in the field of intelligent temperature control clothing.

[0028] The paraffin inside the invention has a slow heat absorption and heat dissipation speed, and graphene oxide is dispersed in the paraffin to accelerate the heat absorption and heat dissipation speed of the paraffin. At the same time, a large number of active hydroxyl groups and carboxyl groups on the surface of the graphene oxide are compounded with 1,4-butanediol diacrylate. The active sheet structure and the formed macromolecular polymer form an effective wrapping of the paraffin, effectively avoiding the loss problem. In addition, due to the excellent thermal conductivity, heat can be quickly conducted in the microcapsule. Combined with the external phase change material, the temperature control effect is excellent, and the temperature adjustment time is greatly extended.

[0029] The method for preparing the intelligent temperature control fiber of the present invention is simple, can effectively prevent the leakage of the phase change material during use, and at the same time make it have good mechanical properties.

[0030] The present invention aims to provide an intelligent temperature-controlled suit coat and a preparation method thereof, wherein the suit coat has an automatic temperature-control function, does not require an external power supply, and does not affect the comfort and aesthetics of the garment. The present invention realizes intelligent temperature control by combining phase change materials with fiber fabrics and utilizing the heat absorption and heat release characteristics of phase change materials. The present invention interweaves intelligent temperature-control fibers with cotton fibers to form the fabric of the suit coat, ensuring that the suit coat has efficient temperature-control performance while maintaining beauty and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a comparison chart of the breaking strength of the fabrics obtained in Example 5 and Comparative Examples 1-3.

[0032] Figure 2 It is a comparison chart of the drape coefficients of the fabrics obtained in Example 5 and Comparative Examples 1-3.

[0033] Figure 3 The thermal conductivity-washing number curve of the fabrics obtained in Example 5 and Comparative Examples 1-3 is shown.

[0034] Figure 4 The surface temperature-time curves of the fabrics obtained in Example 5 and Comparative Examples 1-3 are shown. DETAILED DESCRIPTION

[0035] The present invention will be further explained below in conjunction with specific embodiments.

[0036] Example 1

[0037] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0038] S1. Heat and melt 5 kg of paraffin wax, add 1 kg of graphene oxide and 0.1 kg of Span 80 and stir evenly, add 30 kg of water at a temperature of 80° C., and stir evenly using an internal cutting homogenizer to obtain a phase change material emulsion;

[0039] S2. Under stirring, add 1 kg of methyl acrylate and 1 kg of 1,4-butanediol diacrylate to 36 kg of phase change material emulsion at a stirring speed of 3000 r / min, dropwise add 0.01 kg of ammonium persulfate, react at a temperature of 60 ° C for 1 hour, stand for 5 hours, yield, wash, and vacuum dry to obtain microcapsules; add the microcapsules and 1 kg of sodium alginate to 30 kg of heated and melted n-eicosane and stir evenly to obtain a phase change core material;

[0040] S3, adding 10 kg of thermoplastic polyurethane, 1 kg of polyimide, and 1 kg of calcium chloride to 50 kg of xylene and stirring evenly to obtain a prefabricated shell layer;

[0041] S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, and squeezing them into deionized water at a temperature of 34°C for spinning, wherein the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1:1, soaking for 10 minutes, washing with ethanol, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0042] S5, using intelligent temperature control fiber and cotton fiber as warp and weft respectively, the intelligent temperature control fiber and cotton fiber are spun at a mass ratio of 1:10 to obtain intelligent temperature control fabric (thickness 0.6mm, gram weight 210g / m 2 ), and then cut, sewed and ironed.

[0043] Example 2

[0044] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0045] S1. Heat and melt 15 kg of paraffin wax, add 2 kg of graphene oxide and 0.5 kg of Span 80 and stir evenly, add 60 kg of water at a temperature of 100 ° C, and stir evenly using an internal cutting homogenizer to obtain a phase change material emulsion;

[0046] S2. Add 4kg methyl acrylate and 2kg 1,4-butanediol diacrylate to 77kg phase change material emulsion under stirring at a stirring speed of 5000r / min, drop 0.1kg ammonium persulfate thereto, react at a temperature of 70°C for 2h, stand for 10h, yield, wash, and vacuum dry to obtain microcapsules; add the microcapsules and 3kg sodium alginate to 60kg heated and melted n-eicosane and stir evenly to obtain a phase change core material;

[0047] S3, adding 20 kg of thermoplastic polyurethane, 3 kg of polyimide, and 3 kg of calcium chloride to 100 kg of xylene and stirring evenly to obtain a prefabricated shell layer;

[0048] S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, and squeezing them into deionized water at a temperature of 40°C for spinning, wherein the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 2:1, soaking for 20 minutes, washing with ethanol, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0049] S5, using intelligent temperature control fiber and cotton fiber as warp and weft respectively, the intelligent temperature control fiber and cotton fiber are spun at a mass ratio of 5:20 to obtain intelligent temperature control fabric (thickness 0.8mm, gram weight 240g / m 2 ), and then cut, sewed and ironed.

[0050] Example 3

[0051] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0052] S1. Heat and melt 8 kg of paraffin wax, add 1.8 kg of graphene oxide and 0.2 kg of Tween 80 and stir evenly, add 50 kg of water at a temperature of 85° C., and stir evenly using an internal cutting homogenizer to obtain a phase change material emulsion;

[0053] S2. Add 3kg methyl acrylate and 1.2kg 1,4-butanediol diacrylate to 60kg phase change material emulsion under stirring at a stirring speed of 4500r / min, drop 0.03kg ammonium persulfate thereto, react at a temperature of 66°C for 80min, let stand for 9h, yield, wash, and vacuum dry to obtain microcapsules; add the microcapsules and 1.5kg sodium alginate to 50kg n-eicosane heated and melted, stir evenly to obtain a phase change core material;

[0054] S3, adding 12 kg of thermoplastic polyurethane, 2.5 kg of polyimide, and 1.5 kg of calcium chloride to 90 kg of xylene and stirring evenly to obtain a prefabricated shell layer;

[0055] S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, and squeezing them into deionized water at a temperature of 36°C for spinning, wherein the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1.7:1, soaking for 12 minutes, washing with ethanol, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0056] S5, using intelligent temperature control fiber and cotton fiber as warp and weft respectively, the intelligent temperature control fiber and cotton fiber are woven at a mass ratio of 4:12 to obtain intelligent temperature control fabric (thickness 0.7mm, gram weight 230g / m 2 ), and then cut, sewed and ironed.

[0057] Example 4

[0058] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0059] S1. Heat and melt 12 kg of paraffin wax, add 1.2 kg of graphene oxide and 0.4 kg of Tween 80 and stir evenly, add 40 kg of water at a temperature of 95° C., and stir evenly using an internal cutting homogenizer to obtain a phase change material emulsion;

[0060] S2. Under stirring, add 2kg methyl acrylate and 1.8kg 1,4-butanediol diacrylate to 53kg phase change material emulsion at a stirring speed of 3500r / min, add 0.07kg ammonium persulfate dropwise thereto, react at a temperature of 64°C for 100min, let stand for 7h, yield, wash, and vacuum dry to obtain microcapsules; add the microcapsules and 2.5kg sodium alginate to 40kg heated and melted n-eicosane and stir evenly to obtain a phase change core material;

[0061] S3, adding 18 kg of thermoplastic polyurethane, 1.5 kg of polyimide, and 2.5 kg of calcium chloride to 70 kg of xylene and stirring evenly to obtain a prefabricated shell layer;

[0062] S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, and squeezing them into deionized water at a temperature of 38°C for spinning, wherein the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1.3:1, soaking for 18 minutes, washing with ethanol, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0063] S5, using intelligent temperature control fiber and cotton fiber as warp and weft respectively, the intelligent temperature control fiber and cotton fiber are spun at a mass ratio of 2:18 to obtain intelligent temperature control fabric (thickness 0.7mm, gram weight 220g / m 2 ), and then cut, sewed and ironed.

[0064] Example 5

[0065] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0066] S1. Heat and melt 10 kg of paraffin wax, add 1.5 kg of graphene oxide and 0.3 kg of Tween 80 and stir evenly, add 45 kg of water at a temperature of 90° C., and stir evenly using an internal cutting homogenizer to obtain a phase change material emulsion;

[0067] S2. Under stirring, add 2.5 kg of methyl acrylate and 1.5 kg of 1,4-butanediol diacrylate to 56 kg of phase change material emulsion at a stirring speed of 4000 r / min, dropwise add 0.05 kg of ammonium persulfate, react at a temperature of 65 ° C for 90 min, stand for 8 h, yield, wash, and vacuum dry to obtain microcapsules; add the microcapsules and 2 kg of sodium alginate to 45 kg of heated and melted n-eicosane and stir evenly to obtain a phase change core material;

[0068] S3, adding 15 kg of thermoplastic polyurethane, 2 kg of polyimide, and 2 kg of calcium chloride to 80 kg of xylene and stirring evenly to obtain a prefabricated shell layer;

[0069] S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, and squeezing them into deionized water at a temperature of 37°C for spinning, wherein the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1.5:1, soaking for 15 minutes, washing with ethanol, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0070] S5, using intelligent temperature control fiber and cotton fiber as warp and weft respectively, the intelligent temperature control fiber and cotton fiber are woven at a mass ratio of 3:15 to obtain intelligent temperature control fabric (thickness 0.7mm, gram weight 225g / m 2 ), and then cut, sewed and ironed.

[0071] Comparative Example 1

[0072] A method for preparing a suit coat comprises the following steps: using cotton fibers as warp and weft for weaving, and then cutting, sewing and ironing.

[0073] Comparative Example 2

[0074] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0075] S1. Heat and melt 10 kg of paraffin wax, add 0.3 kg of Tween 80 and stir evenly, add 45 kg of water at a temperature of 90° C., and stir evenly using an internal cutting homogenizer to obtain a phase change material emulsion;

[0076] S2. Under stirring, add 2.5 kg of methyl acrylate and 1.5 kg of 1,4-butanediol diacrylate to 56 kg of phase change material emulsion at a stirring speed of 4000 r / min, dropwise add 0.05 kg of ammonium persulfate, react at a temperature of 65 ° C for 90 min, stand for 8 h, yield, wash, and vacuum dry to obtain microcapsules; add microcapsules, 1.5 kg of graphene oxide, and 2 kg of sodium alginate to 45 kg of heated and melted n-eicosane and stir evenly to obtain a phase change core material;

[0077] S3, adding 15 kg of thermoplastic polyurethane, 2 kg of polyimide, and 2 kg of calcium chloride to 80 kg of xylene and stirring evenly to obtain a prefabricated shell layer;

[0078] S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, and squeezing them into deionized water at a temperature of 37°C for spinning, wherein the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1.5:1, soaking for 15 minutes, washing with ethanol, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0079] S5, using intelligent temperature control fiber and cotton fiber as warp and weft respectively, the intelligent temperature control fiber and cotton fiber are woven at a mass ratio of 3:15 to obtain intelligent temperature control fabric (thickness 0.7mm, gram weight 225g / m 2 ), and then cut, sewed and ironed.

[0080] Comparative Example 3

[0081] A method for preparing an intelligent temperature-controlled suit coat comprises the following steps:

[0082] S1, adding 10 kg paraffin wax, 1.5 kg graphene oxide, and 2 kg sodium alginate into 45 kg of heated and melted n-eicosane and stirring evenly to obtain a phase change core material;

[0083] S2, adding 15 kg of thermoplastic polyurethane, 2 kg of polyimide, and 2 kg of calcium chloride to 80 kg of xylene and stirring evenly to obtain a prefabricated shell layer;

[0084] S3, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, and squeezing them into deionized water at a temperature of 37°C for spinning, wherein the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1.5:1, soaking for 15 minutes, washing with ethanol, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber;

[0085] S4, using intelligent temperature control fiber and cotton fiber as warp and weft respectively, the intelligent temperature control fiber and cotton fiber are woven at a mass ratio of 3:15 to obtain intelligent temperature control fabric (thickness 0.7mm, gram weight 225g / m 2 ), and then cut, sewed and ironed.

[0086] With reference to GB / T 3923.1-2013 “Tensile properties of textile fabrics Part 1: Determination of breaking strength and elongation at break (strip method)”, the breaking strength of the fabrics obtained in Example 5 and Comparative Examples 1-3 was measured.

[0087] like Figure 1 As shown, the warp breaking strength of the fabric obtained in Example 5 is the highest, which is better than that of Comparative Examples 1-3 (P < 0.05), but the weft breaking strengths of the four are similar and lack significant differences (P > 0.05).

[0088] Drapability refers to the performance of fabrics drooping naturally without external force. It is an important factor in evaluating the feel of fabrics and can be characterized by the drape coefficient. The drape coefficients of the fabrics obtained in Example 5 and Comparative Examples 1-3 were measured with reference to GB / T 23329-2009 "Determination of Drapability of Textile Fabrics". The smaller the drape coefficient of the fabric, the better the drape of the fabric and the better the fit of the fabric. A circular sample was taken from each group, the sample size was 240 mm in diameter, the tray lifting speed was 400 mm / min, and the rotation speed was 100 r / min.

[0089] like Figure 2 As shown, the drape coefficient of the fabric obtained in Example 5 is the smallest, which is better than that of Comparative Examples 1-3 (P < 0.05).

[0090] At room temperature, the thermal conductivity of the fabric samples (1 cm×1 cm) obtained in Example 5 and Comparative Examples 1-3 was measured. Then, the fabric samples of each group were washed 5 times, 10 times, 15 times, and 20 times according to the washing method of 10.1.1 Washing color fastness tester in GB / T 20944.3-2008 "Evaluation of antibacterial properties of textiles Part 3: Oscillation method", and the thermal conductivity of each group of samples was measured again after washing the corresponding number of times.

[0091] like Figure 3 As shown, the thermal conductivity of the fabric obtained in Example 5 is always the highest, better than that of Comparative Examples 1-3 (P < 0.05), and the decrease in thermal conductivity after washing is also relatively low.

[0092] The fabrics obtained in Example 5 and Comparative Examples 1-3 were subjected to a heating test. After the temperature was raised to 45°C, the temperature was transferred to room temperature of 15°C. The surface temperature of each group of fabrics was measured and recorded every 30 seconds.

[0093] like Figure 4 As shown, the surface temperature of the fabric obtained in Example 5 decreased the slowest, and the surface temperature still reached 25° C. after 1020 s, which was better than that of Comparative Examples 1-3 (P<0.05).

[0094] The applicant believes that the reason for the above results is that: the present invention selects phase change materials and encapsulates them into microcapsules through microencapsulation technology, which can not only reduce the rupture phenomenon during the spinning process, but also can be evenly dispersed in the spinning melt, so that its stability and dispersibility are good, ensuring that the microcapsules can be evenly distributed in the fiber during the spinning process; the subsequent post-processing stretching and shaping helps to arrange the phase change material microcapsules in the fiber more closely, improve the strength and elasticity of the fiber, and the shaping treatment helps to stabilize the morphology and performance of the fiber, ensuring that it is not easy to deform during subsequent processing and use. At the same time, the present invention uses phase change material microencapsulation before spinning, which can effectively improve the heat resistance of the microcapsule and effectively avoid the breakage of the microcapsule. At the same time, since the microcapsule has a volume change during the heat absorption and heat dissipation process, the present invention attaches a shell layer to the surface of the microcapsule. During the spinning process, the microcapsule is stably fixed inside the fiber, the fiber structure is extremely stable, and the obtained fabric has good intelligent temperature control performance. Moreover, the paraffin inside the present invention has a slow heat absorption and heat dissipation speed, while graphene oxide is dispersed in the paraffin, which can accelerate the heat absorption and heat dissipation speed of the paraffin. At the same time, a large number of active hydroxyl groups and carboxyl groups on the surface of graphene oxide are compounded with 1,4-butanediol diacrylate. The active sheet structure and the formed macromolecular polymer thereon effectively wrap the paraffin, effectively avoiding the loss problem. In addition, due to the excellent thermal conductivity, heat can be quickly conducted in the microcapsule. Combined with the external phase change material, the temperature control effect is excellent, which greatly prolongs the temperature adjustment time.

[0095] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for preparing an intelligent temperature-controlled suit coat, characterized in that: The steps include: S1. Heat and melt the phase change material a, add graphene oxide and emulsifier and stir evenly, add water at a temperature of 80-100° C., stir evenly to obtain a phase change material emulsion; S2. Add methyl acrylate and 1,4-butanediol diacrylate to the phase change material emulsion under stirring, add an initiator dropwise thereto, react at 60-70°C for 1-2h, let stand for 5-10h, yield, wash, and vacuum dry to obtain microcapsules; add the microcapsules and sodium alginate to the heated and melted phase change material b and stir evenly to obtain a phase change core material; S3, adding thermoplastic polyurethane, polyimide and calcium chloride into xylene and stirring evenly to obtain a prefabricated shell layer; S4, respectively inputting the prefabricated core material and the prefabricated shell layer into the inner layer and the outer layer of the coaxial needle, squeezing them into a coagulation bath for spinning, soaking for 10-20 minutes, washing, vacuum drying, and sequentially stretching and shaping to obtain the intelligent temperature control fiber; S5. Use intelligent temperature control fiber and cotton fiber as warp and weft respectively to weave intelligent temperature control fabric, which is then cut, sewn and ironed.

2. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S1, the phase change material a is paraffin, and the emulsifier is Span 80 and / or Tween 80.

3. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S1, the mass ratio of phase change material a, graphene oxide, emulsifier and water is 5-15:1-2:0.1-0.5:30-60.

4. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S2, the initiator is at least one of ammonium persulfate, sodium persulfate and potassium persulfate; and the phase change material b is n-eicosane.

5. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S2, the mass ratio of phase change material emulsion, methyl acrylate, 1,4-butanediol diacrylate, initiator, sodium alginate, and phase change material b is 36-77:1-4:1-2:0.01-0.1:1-3:30-60.

6. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S3, the mass ratio of thermoplastic polyurethane, polyimide, calcium chloride and xylene is 10-20:1-3:1-3:50-100.

7. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S4, the extrusion rate ratio of the prefabricated core material to the prefabricated shell layer is 1-2:

1.

8. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S5, the mass ratio of intelligent temperature control fiber to cotton fiber is 1-5:10-20.

9. The method for preparing the intelligent temperature-controlled suit coat according to claim 1, characterized in that: In S5, the weight of intelligent temperature control fabric is 210-240g / m 2 , thickness is 0.6-0.8mm; warp density is 13.5-14.6tex, weft density is 13.2-14.6tex.

10. An intelligent temperature-controlled suit coat, characterized in that: The intelligent temperature-controlled suit coat is prepared by the preparation method of any one of claims 1 to 9.

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