Recoverable fruit fiber button and manufacturing process thereof

Abstract

The invention provides a recyclable fruit fiber button. The recyclable fruit fiber button is prepared from the following raw materials in parts by weight: 50-60 parts of palm fruit fiber powder with the particle size of 8-12 microns; 40-50 parts by weight of thixotropic resin, wherein the thixotropic resin is prepared from palm fruit fiber powder with a particle size of 8-12 [mu] m and a resin raw material; 0.1 to 2.0 parts by weight of color paste; 5-15 parts by weight of a diluent; 1.5-3.0 parts by weight of a curing agent; and 1.5 to 2.0 parts by weight of an accelerant. The recyclable fruit fiber button provided by the invention does not need a chemical thixotropic agent, and the obtained button has good color and uniformity.

Description

Technical Field

[0001] This invention belongs to the field of clothing accessories technology, specifically relating to a recyclable fruit fiber button and its manufacturing process. Background Technology

[0002] With the development of human society and the progress of the times, people have higher and higher requirements for green environmental protection and recyclability. The recycling and reuse of waste materials generated in the production process of industrial enterprises and manufacturing industries can not only provide industrial enterprises and manufacturing industries with raw materials that can continue to be used, facilitate industrialized production, greatly reduce production costs, but also reduce resource waste.

[0003] Buttons are decorative items used to connect the two sides of clothing. With the rapid development of the garment industry, they have gradually evolved to possess artistic, aesthetic, and environmentally friendly qualities in addition to maintaining their original function, thus meeting the needs of clothing manufacturers. In recent years, at major garment accessories exhibitions, garment accessories made from green, environmentally friendly, and recyclable materials, especially buttons and other decorative accessories, have become one of the main themes. Therefore, some astute companies have long been seeking green, environmentally friendly, and recyclable materials for making buttons and other accessories, and the use of such materials has undoubtedly become a favorite among many garment accessories companies.

[0004] Palm fruit shavings, as a green, environmentally friendly, and recyclable material, are mainly generated during the production and machining stages of palm fruit blanks. When lathes, milling machines, and button-making machines cut the shape (e.g., round, square), grind the edges, and drill holes in the palm fruit blanks, these fine fibrous or fragmented shavings are shed from the machine tools. However, how to recycle and reuse these palm fruit shavings generated during the manufacturing process to make buttons for use in the garment accessories industry has become a future development trend and research direction.

[0005] The traditional manufacturing process for patterned buttons using rods mainly includes: resin thixotropy – color matching – rod mixing – rod forming – blank slicing – blank hardening – button shaping – polishing – finished button. The resin must undergo thixotropy to achieve the desired pattern effect; the purpose of resin thixotropy is to ensure the shape and stability of the pattern. Traditional resin thixotropy processes require the addition of chemical thixotropic agents (such as organic clay, silica, and other thixotropic agents) to achieve the resin thixotropy and pattern effect. This not only increases the cost of thixotropic agents but also requires processing at higher temperatures (typically 80-100℃, or even higher), resulting in a longer processing time (2-4 hours) and significantly increased energy consumption.

[0006] Furthermore, existing technologies suffer from insufficient precision in the pulverization process of palm fruit products, hindering product quality and cost control. Traditional pulverizing equipment (such as mechanical pulverizers, grinding mills, and ball mills) has limited effectiveness in pulverizing natural plant fibers (such as palm fruit shavings), with a pulverization fineness that is difficult to exceed 800 mesh. The resulting coarse powder particle size limits the addition amount to only 30% to 50%, making it unable to effectively replace resin materials. Moreover, when mixed with resin, it easily produces "white spot" defects, severely affecting the appearance quality of the finished product. In addition, traditional pulverizing equipment easily generates high temperatures (100-120℃) due to mechanical friction. Natural plant fibers (such as palm fruit shavings) are temperature-sensitive, and high temperatures can cause the fibers to yellow, resulting in a yellowish and uneven color in the finished buttons, making it difficult to achieve both color and uniformity.

[0007] In summary, existing preparation processes face significant technical bottlenecks in areas such as thixotropic agent selection, pulverization precision, and the effects of high temperatures. There is an urgent need for a technical solution that eliminates the need for chemical thixotropic agents, achieves ultrafine pulverization, and is stable at low temperatures, in order to address these industry pain points and achieve synergistic improvements in material performance, production efficiency, and cost control. Summary of the Invention

[0008] In view of this, the technical problem to be solved by the present invention is to provide a recyclable fruit fiber button and its manufacturing process. The recyclable fruit fiber button provided by the present invention does not require chemical thixotropic agents, and the resulting button has good color and uniformity.

[0009] This invention provides a recyclable fruit fiber button, the raw materials of which include:

[0010] 50-60 parts by weight of palm fruit fiber powder with a particle size of 8-12 μm;

[0011] 40-50 parts by weight of thixotropic resin, wherein the thixotropic resin is prepared from palm fruit fiber powder with a particle size of 8-12 μm and resin raw material;

[0012] 0.1~2.0 parts by weight of color paste;

[0013] 5-15 parts by weight of diluent;

[0014] 1.5 to 3.0 parts by weight of curing agent;

[0015] 1.5 to 2.0 parts by weight of accelerator.

[0016] Preferably, the palm fruit fiber powder is obtained by air-jet milling of palm fruit shavings.

[0017] Preferably, the resin raw material is selected from one or more of unsaturated resin, epoxy resin, and urea-formaldehyde resin.

[0018] Preferably, in the raw materials for preparing the thixotropic resin, the mass ratio of resin raw material to palm fruit fiber powder is 100:(0.5~1.0).

[0019] Preferably, the accelerator is selected from one or more of cobalt naphthenate and cobalt isooctanoate.

[0020] Preferably, the curing agent is selected from one or more of methyl ethyl ketone peroxide, cyclohexanone peroxide, diethylenetriamine, and benzoyl peroxide;

[0021] The diluent is selected from one or more of styrene, butyl glycidyl ether, dimethacrylate, and butyl acrylate.

[0022] The present invention also provides a method for preparing the above-mentioned recyclable fruit fiber button, comprising the following steps:

[0023] A) Preparation of palm fruit fiber powder and thixotropic resin;

[0024] The palm fruit fiber powder is obtained by air-jet crushing of palm fruit shavings.

[0025] The thixotropic resin is obtained by heating and reacting a mixture of palm fruit fiber powder and resin raw material.

[0026] B) Mix palm fruit fiber powder, thixotropic resin, color paste, diluent, curing agent and accelerator to obtain a mixed slurry;

[0027] C) The mixed slurry is solidified and molded to obtain a blank;

[0028] D) The blank is shaped and polished to obtain a recyclable fruit fiber button.

[0029] Preferably, the air jet milling is performed using a circulating air jet mill, which includes a milling system, and the operating parameters of the milling system include:

[0030] The compressed air flow rate is 5~10L / min, the air compressor pressure is 0.7~1.4MPa, the main unit speed is 8000~10000r / min, the stager speed is 12000-15000r / min, the branch unit speed is 2000~3000r / min, and the production capacity is 80~100kg / h.

[0031] Preferably, in step A), the heating reaction temperature is 50-60°C and the time is 1-2 hours.

[0032] Preferably, the curing and molding method includes one or more of casting, drip molding, and compression molding.

[0033] Compared with existing technologies, this invention provides a recyclable fruit fiber button. The raw materials for its preparation include: 50-60 parts by weight of palm fruit fiber powder with a particle size of 8-12 μm; 40-50 parts by weight of thixotropic resin, which is prepared from palm fruit fiber powder with a particle size of 8-12 μm and resin raw materials; 0.1-2.0 parts by weight of color paste; 5-15 parts by weight of diluent; 1.5-3.0 parts by weight of curing agent; and 1.5-2.0 parts by weight of accelerator. The recyclable fruit fiber button provided by this invention does not require a chemical thixotropic agent, and the resulting button has good color and uniformity. Attached Figure Description

[0034] Figure 1 A photograph of the button prepared in Example 1;

[0035] Figure 2 A photograph of the button prepared in Example 2;

[0036] Figure 3 A photograph of the button prepared in Example 3;

[0037] Figure 4 A photograph of the button prepared for Comparative Example 1;

[0038] Figure 5 A photograph of the button prepared for Comparative Example 2. Detailed Implementation

[0039] This invention provides a recyclable fruit fiber button, the raw materials of which include:

[0040] 50-60 parts by weight of 8-12μm palm fruit fiber powder;

[0041] 40-50 parts by weight of thixotropic resin, wherein the thixotropic resin is prepared from 8-12 μm palm fruit fiber powder and resin raw material;

[0042] 0.1~2.0 parts by weight of color paste;

[0043] 5-15 parts by weight of diluent;

[0044] 1.5 to 3.0 parts by weight of curing agent;

[0045] 1.5 to 2.0 parts by weight of accelerator.

[0046] The raw material for preparing recyclable fruit fiber buttons provided by this invention includes 50-60 parts by weight of palm fruit fiber powder, which can be any value between 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, or 50-60 parts by weight. The palm fruit fiber powder is obtained by air-jet milling of palm fruit shavings. The particle size of the palm fruit fiber powder is 8-12 μm, which can be any value between 8, 9, 10, 11, 12, or 8-12 μm. This invention, through ultra-fine milling, increases the fineness of waste fruit shavings and the proportion of fruit fiber powder added, effectively reducing the amount of resin material used, significantly reducing raw material costs, achieving ultra-fine and high-proportion addition of fruit fiber powder, and completely eliminating the "white spot" defect in the finished product.

[0047] The raw materials for preparing the recyclable fruit fiber button provided by the present invention also include 40 to 50 parts by weight of thixotropic resin, which can be any value between 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, or 40 to 50 parts by weight.

[0048] In this invention, the thixotropic resin is prepared from palm fruit fiber powder and resin raw material. The resin raw material is selected from one or more of unsaturated resin, epoxy resin, and urea-formaldehyde resin.

[0049] In the raw materials for preparing the thixotropic resin, the mass ratio of resin raw material to palm fruit fiber powder is 100:(0.5~1.0), which can be any value between 100:0.5, 100:0.6, 100:0.7, 100:0.8, 100:0.9, 100:1, or 100:(0.5~1.0).

[0050] In this invention, the temperature for preparing the thixotropic resin is 50-60°C, which can be any value between 50, 52, 55, 58, 60°C, or 50-60°C, and the time is 1-2 hours.

[0051] This invention directly uses natural palm fruit fiber as a natural thixotropic agent, eliminating the need for high-temperature activation of the thixotropic agent, thus significantly reducing the process temperature and reaction time, and reducing energy consumption and labor time.

[0052] The raw materials for preparing the recyclable fruit fiber buttons provided by this invention also include 0.1 to 2.0 parts by weight of color paste, which can be any value between 0.1, 0.2, 0.4, 0.5, 0.6, 0.8, 1.0, 1.2, 1.4, 1.5, 1.6, 1.8, 2.0, or 0.1 to 2.0 parts by weight. This invention does not impose any special restrictions on the type of color paste, and it can be selected according to the needs of the product.

[0053] The raw materials for preparing the recyclable fruit fiber buttons provided by this invention also include 5 to 15 parts by weight of a diluent, which can be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or any value between 5 and 15 parts by weight. The diluent is selected from one or more of styrene, butyl glycidyl ether, dimethacrylate, and butyl acrylate.

[0054] The raw materials for preparing the recyclable fruit fiber buttons provided by this invention also include 1.5 to 3.0 parts by weight of a curing agent, which can be any value between 1.5, 2, 2.5, 3, or 1.5 to 3.0 parts by weight. The curing agent is selected from one or more of methyl ethyl ketone peroxide, cyclohexanone peroxide, diethylenetriamine, and benzoyl peroxide.

[0055] The raw materials for preparing the recyclable fruit fiber buttons provided by this invention also include 1.5 to 2.0 parts by weight of an accelerator, which can be any value between 1.5, 1.6, 1.7, 1.8, 1.9, 2, or 1.5 to 2.0 parts by weight. The accelerator is selected from one or more of cobalt naphthenate and cobalt isooctanoate.

[0056] The recyclable fruit fiber buttons provided by this invention broaden the ideas for recycling and reusing waste fruit shavings, and provide a novel and effective way for the commercial application of waste fruit shavings recycling and reusing. At the same time, waste fruit shavings can be used in the button industry of clothing accessories.

[0057] The present invention also provides a method for preparing the above-mentioned recyclable fruit fiber button, comprising the following steps:

[0058] A) Preparation of palm fruit fiber powder and thixotropic resin;

[0059] The palm fruit fiber powder is obtained by air-jet crushing of palm fruit shavings.

[0060] The thixotropic resin is obtained by heating and reacting a mixture of palm fruit fiber powder and resin raw material.

[0061] B) Mix palm fruit fiber powder, thixotropic resin, color paste, diluent, curing agent and accelerator to obtain a mixed slurry;

[0062] C) The mixed slurry is solidified and molded to obtain a blank;

[0063] D) The blank is shaped and polished to obtain a recyclable fruit fiber button.

[0064] The present invention first prepares palm fruit fiber powder and thixotropic resin.

[0065] The palm fruit fiber powder is obtained by air-jet milling of palm fruit shavings, using a circulating air-jet mill. Specifically, the circulating air-jet mill mainly consists of an induced draft fan, a milling system, a cyclone separator, and a dust collector. The operating parameters of the milling system include:

[0066] The compressed air flow rate is 5~10 L / min, which can be any value between 5, 6, 7, 8, 9, 10, or 5~10 L / min; the air compressor pressure is 0.7~1.4 MPa, which can be any value between 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, or 0.7~1.4 MPa; the main unit speed is 8000~10000 r / min, which can be any value between 8000, 8500, 9000, 9500, 10000, or 8000~10000 r / min. The grading wheel speed is 12000-15000 r / min, which can be any value between 12000, 13000, 14000, 15000, or 12000-15000 r / min; the sub-machine speed is 2000~3000 r / min, which can be any value between 2000, 2500, 3000, or 2000-3000 r / min; the production capacity is 80~100 kg / h, which can be any value between 80, 85, 90, 95, 100, or 80~100 kg / h.

[0067] This invention uses airflow pulverization as the core pulverizing equipment to achieve a fineness of 1000-1200 mesh (particle size ≤12μm) in palm fruit shavings, improving the fineness and uniformity of the fiber powder. Through precise control of the grading wheel (speed 12000-15000r / min), the uniformity of powder particle size distribution is ≥99%, avoiding uneven particle size distribution. The addition ratio is increased from the traditional 30%-50% to 60%-70%, effectively reducing the amount of resin material used by 15%-20%, and can also effectively solve the defect of "white spots" in the finished product.

[0068] This invention uses an airflow pulverization method to achieve low-temperature physical pulverization (temperature inside the chamber ≤ 80℃), avoiding the yellowing and deterioration of palm fruit shavings during the pulverization process caused by high temperatures, thus ensuring the original color and stable performance of the material.

[0069] The thixotropic resin is obtained by heating a mixture of palm fruit fiber powder and resin raw material. Specifically, palm fruit fiber powder is added to the resin raw material for a heating reaction. The heating reaction temperature is 50–60°C, but can be any value between 50, 52, 55, 58, 60°C, or 50–60°C, for 1–2 hours. The palm fruit fiber powder is the palm fruit fiber powder obtained by air-jet milling as described above.

[0070] This invention eliminates the traditional chemical thixotropic agent addition step and directly uses natural palm fruit fiber as a natural thixotropic agent. The thixotropic effect is achieved by utilizing the three-dimensional network structure of the fiber itself. There is no need for high-temperature activation of the thixotropic agent, the process temperature is reduced, the reaction time is shortened, and energy consumption and labor time are reduced. At the same time, the palm fruit fiber is derived from the waste fruit shavings in the production process, realizing green and environmentally friendly recycling and reuse.

[0071] Then, the palm fruit fiber powder, thixotropic resin, color paste, diluent, curing agent and accelerator are mixed to obtain a mixed slurry.

[0072] Specifically, palm fruit fiber powder is added to thixotropic resin, and then pigment paste, diluent, accelerator and curing agent are added and mixed, and stirred evenly to obtain a mixed slurry.

[0073] Next, the mixed slurry is cured and molded to obtain a blank. In this invention, the curing and molding method includes one or more of casting, drip molding, and compression molding.

[0074] Finally, the blank is shaped and polished to obtain a recyclable fruit fiber button.

[0075] This invention uses waste fruit shavings to make a recyclable fruit fiber button, providing an effective way to recycle and reuse waste fruit shavings generated in production. The process is simple to operate, effectively reduces the product defect rate, improves production efficiency, and is suitable for both large-scale and small-scale operations.

[0076] To further understand the present invention, the recyclable fruit fiber button and its manufacturing process provided by the present invention will be described below with reference to embodiments. The scope of protection of the present invention is not limited by the following embodiments.

[0077] Example 1

[0078] S1) Collect and recycle the waste palm fruit shavings generated during the manufacturing process, and feed them into a circulating air jet mill. After being pulverized to a certain fineness by air jet milling, recycled and pulverized fruit fiber powder can be obtained. The air jet mill used is a circulating air jet mill (model XCM-200), and the operating parameters of the pulverizing system are set as follows:

[0079] Compressed air flow rate 6L / min

[0080] Air compressor pressure 0.8MPa

[0081] Main unit speed 9000 r / min

[0082] The grading wheel speed is 13000 r / min

[0083] Extender unit speed 2500r / min

[0084] Production capacity 90kg / h

[0085] Discharge particle size 8μm

[0086] S2) Add 0.6 parts by weight of the fruit fiber powder recovered and crushed in S1 to 100 parts by weight of unsaturated resin raw material, control the temperature at 50℃, and react for 1 hour to obtain thixotropic resin.

[0087] S3) The fruit fiber powder recovered and crushed in S1 is added to the thixotropic resin in S2, and then pigment paste, diluent, accelerator and curing agent are added and mixed. The mixture is stirred evenly to obtain a mixed slurry. The specific composition ratio is as follows:

[0088] 55 parts by weight of recycled and crushed fruit fiber powder

[0089] 45 parts by weight of thixotropic resin

[0090] 0.5 parts by weight of black pigment

[0091] 1.0 part by weight of coffee coloring

[0092] 10 parts by weight of diluent styrene

[0093] Curing agent: 1.5 parts by weight of methyl ethyl ketone peroxide

[0094] Accelerator Cobalt Isooctanoate 1.2 parts by weight

[0095] S4) Stir the above-mentioned mixed slurry evenly, divide it into two portions according to color and pattern structure, mix them evenly using a rod-making machine, and then cast them into rods in aluminum tubes according to the pattern structure to obtain rod blanks. Then, on a button-making machine, the blanks are cut and shaped, and finally polished to obtain finished buttons. During the manufacturing process, buttons of different colors can be mixed as needed.

[0096] Tested according to the international standard ISO 105-C06-2010 "Color fastness to domestic and commercial washing", the color fastness to washing is ≥4.0; tested according to the international standard ISO 105-D01-2010 "Color fastness to dry cleaning", the color fastness to dry cleaning is ≥4.0; tested according to the international standard ISO 105-X11-1994 "Color fastness to heat and pressing", the color fastness to heat and pressing is ≥4.0. Tensile strength > 90N.

[0097] Batch production was carried out according to the method of Example 1, and the yield was measured to be 99%.

[0098] See Figure 1 , Figure 1 A photograph of the button prepared in Example 1.

[0099] Example 2

[0100] S1) Collect and recycle the waste palm fruit shavings generated during the manufacturing process, and feed them into a circulating air jet mill. After being pulverized to a certain fineness by air jet milling, recycled and pulverized fruit fiber powder can be obtained. The air jet mill used is a circulating air jet mill (model XCM-200), and the operating parameters of the pulverizing system are set as follows:

[0101] Compressed air flow rate 8L / min

[0102] Air compressor pressure 1.0MPa

[0103] Main engine speed 9500 r / min

[0104] The grading wheel speed is 14000 r / min

[0105] Extension unit speed 2800r / min

[0106] Production capacity 95kg / h

[0107] Discharge particle size 10μm

[0108] S2) Add 0.8 parts by weight of the fruit fiber powder recovered and crushed in S1 to 100 parts by weight of unsaturated resin raw material, control the temperature at 55℃, and react for 1.5 hours to obtain thixotropic resin.

[0109] S3) The fruit fiber powder recovered and crushed in S1 is added to the thixotropic resin in S2, and then pigment paste, diluent, accelerator and curing agent are added and mixed. The mixture is stirred evenly to obtain a mixed slurry. The specific composition ratio is as follows:

[0110] 60 parts by weight of finely ground fruit fiber powder

[0111] 40 parts by weight of thixotropic resin

[0112] 0.15 parts by weight of white pigment

[0113] 0.2 parts by weight of white pigment

[0114] 12 parts by weight of diluent styrene

[0115] Curing agent: methyl ethyl ketone peroxide, 2.0 parts by weight

[0116] Accelerator Cobalt Isooctanoate 0.5 parts by weight

[0117] S4) Stir the above-mentioned mixed slurry evenly, divide it into two portions according to color and pattern structure, and slowly pour them into the silicone mold cavity. After complete curing, remove it from the mold cavity to obtain the resin blank. Then, cut and shape the resin blank on a button-making machine, and finally polish it to obtain the finished resin button. During the preparation process, buttons of different colors can be mixed as needed.

[0118] Tested according to the international standard ISO 105-C06-2010 "Color fastness to domestic and commercial washing", the color fastness to washing is ≥4.0; tested according to the international standard ISO 105-D01-2010 "Color fastness to dry cleaning", the color fastness to dry cleaning is ≥4.0; tested according to the international standard ISO 105-X11-1994 "Color fastness to heat and pressure", the color fastness to ironing is ≥4.0. Tensile strength > 90N.

[0119] Batch production was carried out according to the method of Example 2, and the yield was measured to be 99%.

[0120] See Figure 2 , Figure 2 A photograph of the button prepared in Example 2.

[0121] Example 3

[0122] S1) Collect and recycle the waste palm fruit shavings generated during the manufacturing process, and feed them into a circulating air jet mill. After being pulverized to a certain fineness by air jet milling, recycled and pulverized fruit fiber powder can be obtained. The air jet mill used is a circulating air jet mill (model XCM-200), and the operating parameters of the pulverizing system are set as follows:

[0123] Compressed air flow rate 10L / min

[0124] Air compressor pressure 1.2MPa

[0125] Main unit speed 10000 r / min

[0126] The grading wheel speed is 15000 r / min

[0127] Extender unit speed 3000r / min

[0128] Production capacity 100kg / h

[0129] Discharge particle size 12μm

[0130] S2) Add 1.0 part by weight of the fruit fiber powder recovered and crushed in S1 to 100 parts by weight of urea-formaldehyde resin raw material, control the temperature at 60℃, and react for 2 hours to obtain thixotropic resin.

[0131] S3) The fruit fiber powder recovered and crushed in S1 is added to the thixotropic resin in S2, and then pigment paste, diluent, accelerator and curing agent are added and mixed. The mixture is stirred evenly to obtain a mixed slurry. The specific composition ratio is as follows:

[0132] 60 parts by weight of finely ground fruit fiber powder

[0133] 35 parts by weight of thixotropic resin

[0134] 0.3 parts by weight of white pigment

[0135] 0.7 parts by weight of black pigment

[0136] 1.0 part by weight of coffee coloring

[0137] Diluent: 15 parts by weight of dimethacrylate

[0138] Curing agent: benzoyl peroxide 3.0 parts by weight

[0139] Accelerator Cobalt naphthenate 2.0 parts by weight

[0140] S4) Mix thoroughly and spread evenly in a mold. Place the mixture in the mold, set the mold temperature to 130℃, the mold pressure to 10MPa, and the molding time to 150 seconds. The blank is obtained through high-temperature molding. Then, the blank is cut and shaped on a button-making machine, and finally polished to obtain the finished resin button. Different colors of buttons can be mixed as needed during the preparation process.

[0141] Tested according to the international standard ISO 105-C06-2010 "Color fastness to domestic and commercial washing", the color fastness to washing is ≥4.0; tested according to the international standard ISO 105-D01-2010 "Color fastness to dry cleaning", the color fastness to dry cleaning is ≥4.0; tested according to the international standard ISO 105-X11-1994 "Color fastness to heat and pressure", the color fastness to ironing is ≥4.0. Tensile strength > 90N.

[0142] Batch production was carried out according to the method of Example 3, and the yield was measured to be 99%.

[0143] See Figure 3 , Figure 3 A photograph of the button prepared in Example 3.

[0144] Comparative Example 1

[0145] S1) The shavings from the fruit blanks after they have been shaped into buttons are put into an ultra-micro pulverizer and pulverized into powder with a particle size of 25μm;

[0146] S2) The unsaturated resin raw material is reacted with a thixotropic modifier at a temperature controlled at 160℃ for 5 hours to obtain a thixotropic modified resin. The thixotropic modifier is a mixture of (I) and (II), and the structures of (I) and (II) are shown below:

[0147]

[0148] In formula (I), R1 is -H, R2 is CH3, R3 is C2H4, and M = 2, representing two double bonds. In formula (II), R4 is -H, R5 is C2H5, and R6 is C2H4, where formula (I) is 4 parts by weight and formula (II) is 1 part by weight.

[0149] S3) Add the recycled fruit shavings powder obtained from S1 to the thixotropic modified resin in S2, and stir evenly to obtain a mixed slurry;

[0150] S4) The mixed slurry obtained in S3, colorant, diluent, accelerator, and curing agent are mixed to obtain the matrix slurry, the specific composition of which is as follows:

[0151] 34 parts by weight of recycled fruit shavings powder

[0152] 100 parts by weight of thixotropic modified resin

[0153] 0.5 parts by weight of black pigment

[0154] 1.0 part by weight of coffee coloring

[0155] 10 parts by weight of diluent styrene

[0156] Curing agent: 1.5 parts by weight of methyl ethyl ketone peroxide

[0157] Accelerator Cobalt Isooctanoate 1.2 parts by weight

[0158] S5) The above-mentioned matrix slurry is stirred evenly, divided into two parts according to the bar pattern structure, mixed evenly by a bar-making machine, and then cast into bars in aluminum tubes according to the pattern structure to obtain button blanks. Then, the blanks are cut on a button-making machine to obtain blanks of the required shape, and finally polished to obtain finished buttons.

[0159] Mass production using the method in Comparative Example 1 resulted in buttons with noticeable "white spot" defects on the surface. (See details...) Figure 4 , Figure 4 A photograph of the button prepared for Comparative Example 1.

[0160] Comparative Example 2

[0161] Collect waste materials and palm fruits from palm fruit products, grind them into powder in a pulverizer, put the waste powder into a mixing container and mix it with unsaturated resin, recycled plastic granules, cobalt isooctanoate, potassium peroxide ethyl ketone, and color paste to form a synthetic material. Divide the above-mentioned mixed synthetic material into two parts according to color and pattern structure, and slowly pour it into the silicone mold cavity. After it is completely cured, take it out from the mold cavity to obtain the resin blank. Then, cut and shape the resin blank on a button making machine, and finally polish it to obtain the finished resin button.

[0162] Table 1

[0163]

[0164] Mass production was carried out using the method described in Comparative Example 2, with a maximum addition ratio of 50%, and the resulting finished buttons had a yellowish tint. See details... Figure 5 , Figure 5 A photograph of the button prepared for Comparative Example 2.

[0165] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A recyclable fruit fiber button, characterized in that, The raw materials for preparation include: 50-60 parts by weight of palm fruit fiber powder with a particle size of 8-12 μm; 40-50 parts by weight of thixotropic resin, wherein the thixotropic resin is prepared from palm fruit fiber powder with a particle size of 8-12 μm and resin raw material; 0.1~2.0 parts by weight of color paste; 5-15 parts by weight of diluent; 1.5 to 3.0 parts by weight of curing agent; 1.5 to 2.0 parts by weight of accelerator.

2. The recyclable fruit fiber button according to claim 1, characterized in that, The palm fruit fiber powder is obtained by air-jet crushing of palm fruit shavings.

3. The recyclable fruit fiber button according to claim 1, characterized in that, The resin raw material is selected from one or more of unsaturated resin, epoxy resin, and urea-formaldehyde resin.

4. The recyclable fruit fiber button according to claim 1, characterized in that, In the raw materials for preparing the thixotropic resin, the mass ratio of resin raw material to palm fruit fiber powder is 100:(0.5~1.0).

5. The recyclable fruit fiber button according to claim 1, characterized in that, The accelerator is selected from one or more of cobalt naphthenate and cobalt isooctanoate.

6. The recyclable fruit fiber button according to claim 1, characterized in that, The curing agent is selected from one or more of methyl ethyl ketone peroxide, cyclohexanone peroxide, diethylenetriamine, and benzoyl peroxide; The diluent is selected from one or more of styrene, butyl glycidyl ether, dimethacrylate, and butyl acrylate.

7. A method for preparing a recyclable fruit fiber button as described in any one of claims 1 to 6, characterized in that, Includes the following steps: A) Preparation of palm fruit fiber powder and thixotropic resin; The palm fruit fiber powder is obtained by air-jet crushing of palm fruit shavings. The thixotropic resin is obtained by heating and reacting a mixture of palm fruit fiber powder and resin raw material. B) Mix palm fruit fiber powder, thixotropic resin, color paste, diluent, curing agent and accelerator to obtain a mixed slurry; C) The mixed slurry is solidified and molded to obtain a blank; D) The blank is shaped and polished to obtain a recyclable fruit fiber button.

8. The preparation method according to claim 7, characterized in that, The airflow milling is performed using a circulating airflow mill, which includes a milling system. The operating parameters of the milling system include: The compressed air flow rate is 5~10L / min, the air compressor pressure is 0.7~1.4MPa, the main unit speed is 8000~10000r / min, the stager speed is 12000-15000r / min, the branch unit speed is 2000~3000r / min, and the production capacity is 80~100kg / h.

9. The preparation method according to claim 7, characterized in that, In step A), the heating reaction is carried out at a temperature of 50–60°C for 1–2 hours.

10. The preparation method according to claim 7, characterized in that, The curing and molding methods include one or more of casting, drip molding, and compression molding.

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