CN115073776A - Functional fabric and method for producing same - Google Patents

Abstract

The present invention relates to a functional fabric and a method for producing the same. The functional cloth includes a polyurethane resin matrix and a plastic optical molding material. In the functional cloth, the content of the polyurethane resin matrix is 48 wt % to 95 wt %, and the content of the plastic optical molding material is 5 wt % to 50 wt %. The functional fabric further comprises: ultraviolet absorbers, antioxidant additives, and antibacterial additives. The functional fabric meets the following test standards: (1) Phenolic yellowing test of grade 4; (2) QUV (ASTM G154) test for at least 60 hours, and the appearance of the fabric is no abnormality and no cracks; ( 3) Pass at least four weeks of water decomposition resistance test (Jungle Test), and the test conditions are 70 ℃ temperature and 95% relative humidity; one of them.

Description

Functional fabric and method of making the same

technical field

The present invention relates to a functional cloth, in particular to a functional cloth and a manufacturing method thereof.

Background technique

Existing waterproof and moisture-permeable films have been able to achieve better waterproof and moisture-permeable properties through the improvement of various manufacturing processes or process conditions, so that they can be applied to many textile products or functional fabrics. However, the water decomposition resistance test (Jungle Test) of the existing waterproof and moisture-permeable film can only pass two weeks (the test conditions are a temperature of 70° C. and a relative humidity of 95%). The QUV (ASTM G154) test of the existing waterproof and moisture permeable film can only pass thirty hours. Although plastic recycled material was added to the waterproof and moisture-permeable film, its tensile strength was not significantly improved.

Therefore, the inventor believes that the above-mentioned defects can be improved. Nate has devoted himself to research and application of scientific principles, and finally proposes an invention with reasonable design and effective improvement of the above-mentioned defects.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a functional fabric and a manufacturing method thereof, which can effectively improve the defects existing in the prior art.

The embodiment of the present invention discloses a method for manufacturing a functional fabric, which includes: mixing a plastic optical molding material with a solvent, and performing heat treatment at a temperature of 50° C. to 100° C. to form a polymer solution; A polyurethane resin is mixed with the polymer solution to form a paste material with a viscosity ranging from 1,000 cps to 4,000 cps; the paste material is coated on a carrier to make the paste material forming a film-like material; and removing the solvent in the film-like material, so that the film-like material is formed into a functional cloth; wherein, in the functional cloth, the plastic optical molding The weight percent of the material ranges from 5 wt % to 50 wt %, and the weight percent of the polyurethane resin ranges from 48 wt % to 95 wt %.

Preferably, the plastic optical molding material is recycled plastic optical molding material.

Preferably, the plastic optical molding material is selected from the group consisting of cycloolefin polymer (COP), cycloolefin copolymer (COC), poly(methylmethacrylate, PMMA), poly(methylmethacrylate) At least one of the material group consisting of carbonate (polycarbonate, PC) and polystyrene (polystyrene, PS); wherein, the solvent is selected from dimethylformamide (dimethylformamide, DMF), butanone At least one of the material group consisting of (methyl ethyl ketone, MEK), toluene (toluene, TOL), isopropanol (IPA), and ethyl acetate (ethyl acetate, EAC).

Preferably, the manufacturing method of the functional cloth further comprises: mixing an ultraviolet absorber and an antibacterial additive into the paste material, so that after the functional cloth is formed, the ultraviolet absorber contains the ultraviolet absorber. and the antibacterial additive; wherein, in the functional fabric, the weight percentage of the ultraviolet absorber ranges from 0.1 wt % to 5.0 wt %, and the weight percentage of the antibacterial additive ranges from 0.2 wt % to 8.0 wt % %.

类(Benzoxazine)的至少其中之一；其中，所述抗菌添加剂为银离子抗菌剂及锌离子抗菌剂的至少其中之一。Preferably, the ultraviolet absorber is benzophenone, benzotriazole, triazine, formamidine, malonate, and benzene and

At least one of Benzoxazine; wherein, the antibacterial additive is at least one of a silver ion antibacterial agent and a zinc ion antibacterial agent.

Preferably, the functional fabric is a non-porous waterproof and moisture-permeable film; wherein, the functional fabric has a waterproof degree ranging from 5,000 mmH ₂ O to 20,000 mmH ₂ O, and a water resistance of 50,000 g/m ² /day. (day) to 150,000g/m ² /day for a moisture permeability, and a tensile strength between 50kg/cm ² to 350kg/cm ² ; wherein, the functional fabric meets the following test standards: (1) Phenolic yellowing test of grade 4; (2) QUV (ASTM G154) test for at least 60 hours, and the appearance of the fabric is no abnormal and no cracks; (3) Water decomposition resistance test for at least four weeks ( Jungle Test), and the test conditions are a temperature of 70°C and a relative humidity of 95%; and (4) Comply with at least one of the Global Recycling Standard (GRS) and Recycled Content Standard (RCS) certification.

The embodiment of the present invention also discloses a functional cloth, comprising: a polyurethane resin matrix, the weight percentage of the polyurethane resin matrix in the functional cloth is in the range of 48wt% to 95wt%; and a plastic optical molding material, dispersed In the polyurethane resin matrix, and the weight percentage of the plastic optical molding material in the functional cloth ranges from 5wt% to 50wt%; wherein, the functional cloth meets the following test standards: (1) Reach 4 (2) pass the QUV (ASTM G154) test for at least sixty hours, and the appearance of the fabric is no abnormal and no cracks; (3) pass the water decomposition resistance test (Jungle Test) for at least four weeks, and The test conditions are a temperature of 70°C and a relative humidity of 95%; and (4) compliance with at least one of the Global Recycling Standard (GRS) and Recycled Content Standard (RCS) certifications.

Preferably, the functional cloth further comprises a solvent remaining in the polyurethane resin matrix and the plastic optical molding material, and a residual concentration of the solvent is between 50 ppm and 400 ppm.

Preferably, the functional cloth further comprises an ultraviolet absorber and an antibacterial additive dispersed in the polyurethane resin matrix; wherein, in the functional cloth, the weight percentage of the ultraviolet absorber is 0.1wt% % to 5.0 wt %, and the weight percentage of the antibacterial additive ranges from 0.2 wt % to 8.0 wt %.

Preferably, the functional fabric is a non-porous waterproof and moisture-permeable film; and the functional fabric has a waterproof degree ranging from 5,000mmH ₂ O to 20,000mmH ₂ O, and a water resistance of 50,000g/m ² /day. A moisture permeability to 150,000 g/m ² /day, and a tensile strength between 50 kg/cm ² and 350 kg/cm ² .

To sum up, in the functional fabric and the manufacturing method thereof according to the embodiments of the present invention, the plastic optical molding material can be pre-dissolved in the selected solvent, and then the plastic optical molding material and the polyurethane resin can be mixed to form a concentration of It is a paste material with uniform and specific viscosity, so that the compatibility and dispersion uniformity between the plastic optical molding material and the polyurethane resin can be effectively improved, and the final formed functional fabric can maintain a certain waterproof and moisture permeability.

Furthermore, since the plastic optical molding material disclosed in the embodiment of the present invention can be selected from recycled plastic optical molding materials, the manufacturing cost of functional fabrics can be reduced, and the purpose of recycling waste and environmental protection and energy saving can be achieved (function Sexual fabrics can comply with global recycling standards GRS certification and/or RCS certification).

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, but these descriptions and drawings are only used to illustrate the present invention, rather than make any claims to the protection scope of the present invention. limit.

Description of drawings

FIG. 1 is a flow chart of a manufacturing method of a functional fabric according to an embodiment of the present invention.

Detailed ways

The following are specific specific examples to illustrate the embodiments disclosed in the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to the actual size, and are stated in advance. The following embodiments will further describe the related technical contents of the present invention in detail, but the disclosed contents are not intended to limit the protection scope of the present invention.

It should be understood that although terms such as "first", "second", "third" and the like may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another component, or one signal from another. In addition, the term "or", as used herein, should include any one or a combination of more of the associated listed items, as the case may be.

[Manufacturing method of functional fabric]

As shown in FIG. 1 , this embodiment discloses a manufacturing method of functional cloth. The manufacturing method of the functional fabric includes step S110, step S120, step S130, step S140, and step S150. It must be noted that, the sequence of each step and the actual operation mode described in this embodiment can be adjusted according to requirements, and are not limited to those described in this embodiment.

Step S110 is to mix a plastic optical molding material with a solvent to form a polymer solution. In more detail, in order to uniformly disperse and dissolve an appropriate amount of the plastic optical molding material into the solvent, the plastic optical molding material and the solvent have a better proportion configuration in the dosage range, and the mixing temperature conditions There is also a preferred temperature operating range. Specifically, step S110 of this embodiment is to mix 5 to 50 parts by weight of a plastic optical molding material and 48 to 95 parts by weight of a solvent, and mix the above-mentioned plastic optical molding material and the solvent The mixture is heated and stirred at a temperature of 50°C to 100°C, so that the plastic optical molding material can be uniformly dispersed and dissolved in the solvent, thereby forming the polymer solution. Preferably, the content of the plastic optical molding material is between 8 parts by weight and 50 parts by weight, and the content of the solvent is between 48 parts by weight and 90 parts by weight.

In terms of material types, the plastic optical molding materials are cycloolefin polymer (cycloolefin polymer, COP), cycloolefin copolymer (cycloolefin copolymer, COC), poly(methyl methacrylate, PMMA), poly(methyl methacrylate) At least one of carbonate (polycarbonate, PC) and polystyrene (polystyrene, PS). Preferably, the plastic optical molding material is at least one of cycloolefin polymer, cycloolefin copolymer, polymethyl methacrylate, and polycarbonate. Particularly preferably, the plastic optical molding material is at least one of a cycloolefin polymer and a cycloolefin copolymer, but the present invention is not limited thereto.

In terms of physicochemical properties, the plastic optical molding material has a refractive index between 1.45 and 1.60, and preferably between 1.48 and 1.55. The plastic optical molding material has an Abbe number between 30 and 60, and preferably between 50 and 60. The plastic optical molding material has a visible light transmittance of not less than 85%, and preferably not less than 88%. The plastic optical molding material has a thermal expansion coefficient between 50 and 70, and preferably between 60 and 70. In addition, in an embodiment of the present invention, the plastic optical molding material is a plastic material suitable for making an optical lens, but the present invention is not limited.

It is worth mentioning that the plastic optical molding material can be, for example, recycled plastic optical molding material. In more detail, the recycled plastic optical molding material can be, for example, unqualified products, scraps, scraps, or any discarded materials generated from the raw materials of plastic optical molding materials during the manufacturing process. Molded products of plastic optical molding materials.

In terms of solvent selection, in order to uniformly dissolve the above-mentioned plastic optical molding material, and to increase the compatibility and dispersion uniformity between the plastic optical molding material and the polyurethane resin as described below, in this embodiment, the The solvent is preferably selected from dimethylformamide (DMF), methyl ethylketone (MEK), toluene (TOL), isopropanol (IPA), and ethylacetate (EAC) ), but the present invention is not limited thereto. For example, as long as the choice of the solvent can dissolve the plastic optical molding material, and at the same time can increase the compatibility and dispersion uniformity between the plastic optical molding material and the polyurethane resin, it all conforms to the protection spirit of the present invention, and belongs to the present invention. The scope of protection of the invention.

Step S120 is to mix a polyurethane resin (the full name is polyurethane, the English name is polyurethane) and the above-mentioned polymer solution by stirring to form a paste material (also called a paste material or a paste). material).

In more detail, in order to make the paste material easier to process in subsequent process steps (eg step S130 ), the viscosity of the paste material is preferably adjusted to be between 1,000 centipoise ( cP) to 4,000 centipoise (cP), and more preferably between 1500 centipoise and 3,000 centipoise. Wherein, the way of preparing the viscosity of the paste-like material can be realized, for example, by adjusting the mixing ratio between the polyurethane resin and the polymer solution, or by adding an appropriate amount of thickener, which is not limited in the present invention. .

It is worth mentioning that, in order to increase the material properties of the finally formed functional cloth, the manufacturing method of the functional cloth may further include (step S130 ): mixing a silicon-containing additive into the above-mentioned paste material, so that the The functional fabric contains the silicon-containing additive after being formed.

For example, in an embodiment of the present invention, in order to increase the surface flatness of the final formed functional fabric, the silicon-containing additive may be an organic silicon-containing additive having an alkoxysilane group in its molecular structure , and the organic silicon-containing additive can be selected from at least one of polydimethylsiloxane, polymethylphenylsiloxane, polyether polyester-modified organosiloxane, and alkyl-modified organosiloxane one of them.

It should be noted that, the material selection of the silicon-containing additive may be simply selected from one of the above-mentioned material types; or may be a combination of two or more selected from the above-mentioned material types. limit. For example, the silicon-containing additive can be selected from polydimethylsiloxane, which can improve the surface flatness of the film, and silicon dioxide, which can improve the anti-sticking property of the film. Furthermore, no matter how the material of the silicon-containing additive is selected, the weight percentage of the silicon-containing additive in the final formed functional fabric is preferably in the range of 0.01 wt % to 5 wt %. In an embodiment of the present invention, in order to increase the UV resistance of the finally formed functional fabric, the manufacturing method of the functional fabric may further include (step S130 ): mixing an UV absorber into the above-mentioned paste-like material , so that the functional fabric contains the ultraviolet absorber after being formed.

类(Benzoxazine)所组成的材料群组的至少其中之一。The weight percentage of the ultraviolet absorber in the final formed functional fabric is preferably in the range of 0.1 wt % to 5.0 wt %. The ultraviolet absorber is preferably selected from the group consisting of Benzophenone, Benzotriazole, Triazine, Formamidine, Malonate, and Benzo

At least one of the material group consisting of Benzoxazine.

The material types of the above-mentioned ultraviolet absorbers are particularly suitable for addition to polymer mixtures of polyurethane resin-mixed plastic optical molding materials. That is to say, the above-mentioned ultraviolet absorber can have good compatibility and dispersibility with the polymer mixture, so that the functional fabric has good anti-ultraviolet ability. If other types of UV absorbers are used, functional fabrics may not produce good UV resistance.

In an embodiment of the present invention, in order to increase the antibacterial ability of the finally formed functional cloth, the manufacturing method of the functional cloth may further include (step S130): mixing an antibacterial additive into the above-mentioned paste-like material, to The antibacterial additive is contained in the functional fabric after being formed.

The weight percentage of the antibacterial additive in the final formed functional fabric is preferably in the range of 0.2 wt % to 8.0 wt %. Furthermore, the antibacterial additives are inorganic substances such as metal ions with antibacterial properties and their complexes with inorganic carriers, such as silver ion antibacterial agents, zinc ion antibacterial agents, etc. Thereby, the functional fabric can have an antibacterial activity value of not less than 2.0 (in compliance with FTTS-FA-027, AATCC-100, JIS-L1902, ASTM-E2149, or ISO-20743 Antibacterial Textiles Verification Specification).

Step S140 is to coat the above-mentioned paste-like material on a carrier, so that the paste-like material is formed into a film-like material. In more detail, the paste-like material can be applied to the carrier, for example, by means of doctor blade, spray coating, or roller coating. Furthermore, the coating amount of the paste material applied to the carrier is preferably 15 grams to 60 grams of paste material (preferably 15 grams to 50 grams) per square meter of the carrier, and the The carrier is preferably at least one selected from paper and cloth.

It must be noted that, since the film-like material is formed by coating a paste-like material on a carrier, the composition of the film-like material is the same as that of the paste-like material. More specifically, the composition of the film-like material includes a plastic optical molding material, a urethane resin, and a solvent (and optionally a silicon-containing additive, an anti-ultraviolet additive, or an antibacterial additive as the case may be).

In addition, in the final shaped functional fabric, the sum of the weight percentages of the above components (including: polyurethane resin matrix, plastic optical molding materials, and other additives, such as silicon-containing additives, ultraviolet absorbers, antibacterial additives) is 100wt% .

Preferably, this embodiment further includes a defoaming treatment step before the step of coating the paste material on the carrier, but the present invention is not limited thereto. The defoaming treatment step is to use a vacuum defoaming machine or a defoaming agent to perform defoaming treatment on the pasty material to remove air bubbles in the pasty material. In this way, air bubbles can be prevented from affecting the waterproof and moisture permeability or other physical and chemical properties of the functional fabric, and the product yield of the functional fabric can be improved.

Step S150 is to remove the solvent in the film-like material, so that the film-like material is formed into a functional cloth.

Wherein, in the functional fabric, the weight percentage range of the plastic optical molding material is preferably 5wt% to 50wt% (more preferably 8wt% to 50wt%), and the weight percentage range of the polyurethane resin is preferably 48 wt % to 95 wt % (more preferably 48 wt % to 90 wt %), and the residual concentration of the solvent is preferably 50 ppm to 400 ppm, and more preferably 100 ppm to 300 ppm.

Wherein, the functional fabric is a non-porous membraneexhibiting waterproof and breathable film, and the functional fabric has a waterproof degree ranging from 5,000mmH ₂ O to 20,000mmH ₂ O, and is relatively Preferably between 10,000mmH ₂ O to 20,000mmH ₂ O; between 50,000g/m ² /day to 150,000g/m ² /day, and preferably between 60,000g/m ² /day to 130,000g/m ² /day; and a tensile strength between 50kg/ ^cm2 and 350kg/ ^cm2 , preferably between 60kg/ ^cm2 and 300kg/ ^cm2 , more preferably between 100kg/ ^cm2 and 300kg/cm2 ² , and particularly preferably between 120kg/cm ² to 300kg/cm ² . It is worth mentioning that the functional fabric of the present invention is not limited to a non-porous waterproof and moisture-permeable film. In another embodiment of the present invention, the functional fabric can also be a porous waterproof and moisture-permeable film.

According to the above configuration, the functional fabric meets the following test criteria: (1) Phenolic yellowing test up to grade 4; (2) QUV (ASTM G154) test for at least sixty hours, and the appearance of the fabric is normal and free of Cracking; (3) Pass at least four weeks of water decomposition resistance test (Jungle Test), and the test conditions are 70 ° C temperature and 95% relative humidity; ) certified at least one of them.

Further, the method of removing the solvent in the film-like material in step S150 may be, for example, removing the solvent through a dry processing step.

[Dry processing step]

The dry processing step includes: drying the film-like material at a predetermined temperature (eg, 60° C. to 180° C.) through a drying machine to remove the solvent in the film-like material, and The film-like material is formed into a functional cloth with waterproof and moisture-permeable properties; and the functional cloth is separated from the carrier, so as to facilitate the application of the end product. Wherein, the functional fabric formed in the dry processing step in this embodiment is a non-porous film, but the present invention is not limited to this, and it can also be a porous film.

[functional fabric]

This embodiment also discloses a functional cloth, and the functional cloth can be obtained by the above-mentioned manufacturing method of the functional cloth, but the present invention is not limited thereto.

Specifically, the functional fabric includes a polyurethane resin matrix and a plastic optical molding material dispersed in the polyurethane resin matrix. Wherein, in the functional fabric, the weight percent range of the polyurethane resin matrix is 48wt% to 95wt% (more preferably 48wt% to 90wt%), and the weight percent range of the plastic optical molding material is 5wt% to 50 wt% (more preferably 8 to 50 wt%).

Wherein, the functional cloth further includes a solvent remaining in the polyurethane resin matrix and the plastic optical molding material, and the residual concentration of the solvent is between 50 ppm and 400 ppm.

Wherein, the functional fabric further includes a silicon-containing additive, an ultraviolet absorber, and an antibacterial additive dispersed in the polyurethane resin matrix and the cycloolefin polymer material. In the functional fabric, the weight percentage of the silicon-containing additive ranges from 0.01 wt % to 5 wt %, the weight percentage of the ultraviolet absorber ranges from 0.1 wt % to 5.0 wt %, and the weight of the antibacterial additive ranges from 0.01 wt % to 5.0 wt %. The percentage ranges from 0.2 wt% to 8.0 wt%.

Wherein, the functional fabric is a non-porous waterproof and moisture-permeable film, and the functional fabric has a waterproof degree ranging from 5,000mmH ₂ O to 20,000mmH ₂ O; ranging from 50,000g/m ² /day to 150,000 a moisture permeability of g/m ² /day; and a tensile strength ranging from 50kg/cm ² to 350kg/cm ² .

Furthermore, the functional fabric meets the following test standards: (1) the phenolic yellowing test of grade 4; (2) the QUV (ASTM G154) test for at least 60 hours, and the appearance of the fabric is no abnormality and no tortoise (3) Pass the Jungle Test for at least four weeks, and the test conditions are 70°C and 95% relative humidity; and (4) Comply with Global Recycling Standard (GRS) and Recycled Content Standard (RCS) At least one of the certifications.

It is worth mentioning that the functional fabric of this embodiment is particularly suitable for the production of various textile products or functional fabrics.

[Physicochemical properties test of functional fabrics]

The sample preparation method, test method, and test results of the functional fabric of this example are as follows.

The preparation method of functional fabric: pre-dissolving and mixing a plastic optical molding material (cyclic olefin polymer is selected in this embodiment) and a solvent to form a polymer solution; according to a predetermined ratio, a polyurethane resin material and the high The molecular solutions are mixed with each other and stirred at 1,000 rpm to 2,500 rpm for about two minutes to form a paste with a viscosity of 1,000 to 4,000 centipoise (applicable when the carrier is release paper or cloth); The ultraviolet absorber and an antibacterial additive are mixed into the paste material; the paste material is coated on a carrier to form a film material with a thickness of 50 microns to 120 microns; the film material is placed In a continuous multi-section drying equipment, drying is performed at a temperature of 60°C to 180°C, so that the film-like material is formed into a functional cloth (non-porous film with waterproof and moisture-permeable properties).

Test method of water repellency (JIS L1092): The water repellency of the functional fabric (non-porous film) prepared by the dry treatment method in this example was tested according to the high water pressure method (JIS L1092). The main use of the high water pressure method is to test the water resistance of fabrics against water penetration under hydrostatic pressure. The preparation steps of the test piece include: cutting a functional fabric to obtain three rectangular test pieces (15 cm long by 15 cm wide) with a specific size; Three points to test (eg: left, middle, right three points). The test steps of the test piece include: filling the test water tank of a hydraulic press with distilled water at room temperature; placing a test piece in the test water tank horizontally, so that the test piece is in contact with distilled water, and the processing surface of the test piece faces upwards (It must be confirmed that there is no air between the test piece and the test water tank); start the chuck down button of the hydraulic press to fix the test piece on the test water tank; the water pressure of the hydraulic press is 1kg/ ^cm2 per minute or The speed of 10,000mm-H ₂ O rises; when three water droplets (or one water droplet larger than 0.5 cm) appear on the processing surface of the test piece, immediately press the stop button of the hydraulic press and read the data; and, during the test When complete, the hydraulic press is zeroed and the next round of testing is performed. The above steps were repeated three times and the value of the test data (mmH ₂ O) was recorded.

Test method for moisture permeability (JIS L1099B1): In this example, the moisture permeability of the functional fabric (non-porous film) prepared by the dry treatment method was tested according to the potassium acetate method (JIS L1099B1). The main use of the potassium acetate method is to test the extent to which water vapor penetrates a fabric. The preparation steps of the test piece include: cutting a functional fabric to obtain three circular test pieces (about 5.6 cm in diameter) with a specific size. The test steps of the test piece include: adding 300 grams of a hygroscopic agent (potassium acetate) to 100 grams of water to form a hygroscopic agent solution; leaving the hygroscopic agent solution for a predetermined time (about 8 to 12 hours) Pour the moisture absorbent solution into a moisture permeable cup, so that two-thirds of the accommodating space of the moisture permeable cup is filled with the moisture absorbent; prepare a moisture permeability measurement auxiliary film, wherein the moisture permeability measurement auxiliary The membrane can be, for example, a polytetrafluoroethylene (PTFE) membrane, and has a porosity of 80% and a thickness of 25 microns; the moisture permeability measurement auxiliary membrane is fixed on the moisture permeable cup; the test piece is fixed on a support , so that an outer surface (eg: non-coated surface) of the test piece faces inward, and an inner surface (eg: coated surface) of the test piece faces outward; put the support upside down in a constant temperature water bath (water having 23±1° C.); the test piece was fixed at a position with a water depth of 10 mm and left for 15 minutes; and, a mass change (mg/min) of the test piece within 15 minutes was measured to calculate The moisture permeability (g/m ² /day) of the test piece was calculated.

Test method for tensile strength (tensile strength, or tear strength):

After a functional fabric (non-porous film) is subjected to the subjugation phenomenon, a stress is continued to be applied to the functional fabric. At this time, a phenomenon of strain hardening (or work hardening) occurs. The primary tensile strength of the functional fabric increases with the increase of the applied stress. When the applied stress reaches the highest point, the stress at this point is the ultimate tensile strength (UTS) of the functional fabric. The maximum tensile strength (σUTS) can be defined as:

Among them, P _max is the load on the functional fabric at the maximum tensile strength, and A ₀ is the original cross-sectional area of the functional fabric. It is worth mentioning that for brittle materials, the maximum tensile strength is an important mechanical property; however, for ductile materials, the maximum tensile strength value is not commonly used in industrial design, because before reaching this value, the material Significant plastic deformation has occurred.

The phenolic yellowing test was performed according to ISO105-X18. Test sample: 10cm in warp and 3cm in weft. As is: 10cm in warp and 5cm in weft. The test equipment includes: test paper, yellow cloth, glass sheet, PE film. The test methods include: 1. Fold the test paper in half, and then clamp the test sample into the test paper (one test paper sandwiches one test sample). 2. Clamp the yellowing cloth into the test paper. 3. Clamp the test sample and the yellowing cloth into the glass sheet (the bottom piece of material must be the yellowing cloth, and the above are the test samples). 4. Wrap the glass sheets (7 pieces) tightly with PE film. The tape can only be attached to both sides of the glass sheet, not the front or bottom (bundle the sides of the PE film with tape to seal the entire material). 5. Put the material in the sweat resistance testing machine, cover with a 1 kg weight cover, and then put a 3.5 kg weight hanger, lock both sides of the material, remove the weight hanger, and put the material in 50℃(±3) Oven pressure for 16 hours. 6. Take the material out of the oven and put it at room temperature for 30 minutes before opening the package (weight 4 kg). 7. Ratings.

The QUV test is conducted according to the ASTM G154 international standard test method.

Water decomposition resistance test (Jungle Test) method: place the test sample in an oven at a temperature of 70° C. and a relative humidity of 95%, and observe the appearance of the test sample after the test.

[Table 1 Physical and chemical properties test of functional fabrics]

According to the above test results, it can be known that the functional fabric of this embodiment has a waterproof degree ranging from 5,000mmH ₂ O to 20,000mmH ₂ O; ranging from 50,000g/m ² /day to 150,000g/m ² /day A moisture permeability of ; and a tensile strength between 50kg/cm ² to 350kg/cm ² .

Furthermore, the functional fabric meets the following test standards: (1) the phenolic yellowing test of grade 4; (2) the QUV (ASTM G154) test for at least 60 hours, and the appearance of the fabric is no abnormality and no tortoise (3) Pass the Jungle Test for at least four weeks, and the test conditions are 70°C and 95% relative humidity; and (4) Comply with Global Recycling Standard (GRS) and Recycled Content Standard (RCS) At least one of the certifications.

[Technical Effects of the Embodiments of the Invention]

To sum up, in the functional fabric and the manufacturing method thereof according to the embodiments of the present invention, the plastic optical molding material can be pre-dissolved in the selected solvent, and then the plastic optical molding material and the polyurethane resin can be mixed to form a concentration of Uniform paste material with specific viscosity, so that the compatibility and dispersion uniformity between plastic optical molding material and polyurethane resin can be effectively improved, and the final formed functional fabric can maintain a certain waterproof and moisture permeability. It has better tensile strength, thus improving the application prospect of this material.

Furthermore, since the plastic optical molding material disclosed in the embodiments of the present invention can be recycled materials of cyclic olefin polymers, the manufacturing cost of functional fabrics can be reduced, and the purposes of waste recycling and environmental protection and energy saving can be achieved.

The above descriptions are only preferred and feasible embodiments of the present invention, and are not intended to limit the protection scope of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the protection scope of the claims of the present invention. .

Claims (10)

1. A method for manufacturing a functional fabric, characterized by comprising:

mixing a plastic optical molding material with a solvent, and performing heat treatment at a temperature of 50 ℃ to 100 ℃ to form a polymer solution;

mixing polyurethane resin with the high polymer solution to form a paste material with the viscosity of 1,000-4,000 centipoise;

applying the paste material onto a support so that the paste material is formed into a film-like material; and

removing the solvent in the film-like material to form the film-like material into a functional cloth; wherein, in the functional cloth, the plastic optical molding material is in a range of 5 wt% to 50 wt% and the polyurethane resin is in a range of 48 wt% to 95 wt%.

2. The method of manufacturing a functional fabric according to claim 1, wherein the plastic optical molding material is a recycled plastic optical molding material.

3. The method of claim 1, wherein the plastic optical molding material is at least one selected from a group consisting of cyclic olefin polymer, cyclic olefin copolymer, polymethyl methacrylate, polycarbonate, and polystyrene; wherein the solvent is at least one selected from a group of materials consisting of dimethylformamide, butanone, toluene, isopropanol, and ethyl acetate.

4. The method of manufacturing a functional fabric according to claim 1, further comprising: mixing an ultraviolet absorber and an antibacterial additive into the pasty material, so that the functional fabric contains the ultraviolet absorber and the antibacterial additive after being formed; wherein, in the functional cloth, the ultraviolet absorber is in a range of 0.1 wt% to 5.0 wt%, and the antibiotic additive is in a range of 0.2 wt% to 8.0 wt%.

5. The method of producing a functional fabric according to claim 4, wherein the ultraviolet absorber is benzophenone, benzotriazole, triazine, formamidine, malonate, or benzo

At least one of the classes; wherein the antibacterial additive is at least one of a silver ion antibacterial agent and a zinc ion antibacterial agent.

6. The functional cloth according to any one of claims 1 to 5The manufacturing method is characterized in that the functional cloth is a nonporous waterproof moisture-permeable film; wherein the functional cloth has a weight of 5,000mmH ₂ O to 20,000mmH ₂ Water repellency of O of 50,000g/m ² Day to 150,000g/m ² Moisture permeability per day, and is between 50kg/cm ² To 350kg/cm ² The tensile strength of (2); wherein the functional fabric meets the following test standards: (1) phenol yellowing test reaching grade 4; (2) (ii) passes the QUV (ASTM G154) test for at least sixty hours, and the functional fabric has no abnormal appearance and no cracks; (3) passing a water decomposition resistance test for at least four weeks at a temperature of 70 ℃ and a relative humidity of 95%; and (4) compliance with at least one of the global recycling standards and recycling composition standards certification.

7. A functional fabric, comprising:

a polyurethane resin matrix in a weight percentage range of 48 wt% to 95 wt% in the functional cloth; and

a plastic optical molding material dispersed in the polyurethane resin matrix, and the weight percentage of the plastic optical molding material in the functional cloth ranges from 5 wt% to 50 wt%;

wherein the functional fabric meets the following test standards: (1) phenol yellowing test reaching grade 4;

(2) (ii) passes the QUV (ASTM G154) test for at least sixty hours, and the functional fabric has no abnormal appearance and no cracks; (3) passing a water decomposition resistance test for at least four weeks at a temperature of 70 ℃ and a relative humidity of 95%; and (4) compliance with at least one of the global recycling standards and recycling composition standards certification.

8. The functional fabric according to claim 7, further comprising a solvent remaining in the polyurethane resin matrix and the plastic optical molding material, and a residual concentration of the solvent is 50ppm to 400 ppm.

9. The functional fabric according to claim 7, further comprising an ultraviolet absorber and an antibacterial additive dispersed in the polyurethane resin matrix; wherein, in the functional cloth, the ultraviolet absorber is in a range of 0.1 wt% to 5.0 wt%, and the antibiotic additive is in a range of 0.2 wt% to 8.0 wt%.

10. The functional fabric according to any one of claims 7 to 9, wherein the functional fabric is a nonporous waterproof moisture-permeable film; and the functional cloth has a thickness of between 5,000mmH ₂ O to 20,000mmH ₂ Water repellency of O of 50,000g/m ² Day to 150,000g/m ² Moisture permeability per day, and between 50kg/cm ² To 350kg/cm ² The tensile strength of (2).

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