Composite wear-resistant fabric

文档序号：402149 发布日期：2021-12-17 浏览：30次中文

阅读说明：本技术 一种复合型耐磨面料 (Composite wear-resistant fabric ) 是由张文博于 2021-10-14 设计创作，主要内容包括：本申请属于面料技术领域,具体涉及一种复合型耐磨面料,包括基布层和耐磨层,其特征在于：所述耐磨层包括如下重量份的各组分：水性聚氨酯丙烯酸酯50-70份、活性稀释剂10-20份、改性纳米二氧化硅20-30份、分散剂0.2-2份、光引发剂0.5-3份、去离子水10-30份。本申请的复合型耐磨面料,在耐磨层添加了适量的改性纳米二氧化硅,可以有效提高面料的耐磨性能,所制备的面料不易磨损,寿命更长,防风效果好；耐磨层采用水性体系,更为环保,且不会损伤基布层；另外,耐磨层为紫外光固化体系,可在紫外光照射下固化获得耐磨层,固化温度低。(The application belongs to the technical field of the surface fabric, concretely relates to compound wear-resisting surface fabric, including base cloth layer and wearing layer, its characterized in that: the wear-resistant layer comprises the following components in parts by weight: 50-70 parts of water-based polyurethane acrylate, 10-20 parts of reactive diluent, 20-30 parts of modified nano silicon dioxide, 0.2-2 parts of dispersant, 0.5-3 parts of photoinitiator and 10-30 parts of deionized water. According to the composite wear-resistant fabric, a proper amount of modified nano silicon dioxide is added in the wear-resistant layer, so that the wear resistance of the fabric can be effectively improved, the prepared fabric is not easy to wear, the service life is longer, and the windproof effect is good; the wear-resistant layer adopts a water-based system, is more environment-friendly and does not damage the base cloth layer; in addition, the wear-resistant layer is an ultraviolet curing system, can be cured under ultraviolet irradiation to obtain the wear-resistant layer, and has low curing temperature.)

1. The utility model provides a compound wear-resisting surface fabric, includes base cloth layer and wearing layer, its characterized in that: the wear-resistant layer comprises the following components in parts by weight: 50-70 parts of water-based polyurethane acrylate, 10-20 parts of reactive diluent, 20-30 parts of modified nano silicon dioxide, 0.2-2 parts of dispersant, 0.5-3 parts of photoinitiator and 10-30 parts of deionized water.

2. The composite wear-resistant fabric of claim 1, wherein: the active diluent is one or more of hydroxyethyl methacrylate, tripropylene glycol diacrylate, dipropylene glycol diacrylate, tetrahydrofuran acrylate, trimethylolpropane triacrylate and pentaerythritol triacrylate.

3. The composite wear-resistant fabric of claim 1, wherein: the modifier used for modifying the nano silicon dioxide is a silane coupling agent with double bonds.

4. The composite wear-resistant fabric of claim 3, wherein: the silane coupling agent of the silane coupling agent with double bonds is one or more of a silane coupling agent KH-570, a silane coupling agent A-171, a silane coupling agent A-151 and a mildew-proof silane coupling agent.

5. The composite wear-resistant fabric of claim 4, wherein: the mildew-proof silane coupling agent has a structural formula as follows:

。

6. the composite wear-resistant fabric of claim 1, wherein: the preparation method of the modified nano silicon dioxide comprises the following steps: preparing ethanol into 85-95% ethanol water solution, adding silane coupling agent, hydrolyzing for a certain time, adding nano silicon dioxide, performing modification treatment for 20-30min, filtering, washing, and drying to obtain the modified nano silicon dioxide.

7. The composite wear-resistant fabric of claim 1, wherein: the dispersant is polycarboxylate dispersant.

8. The composite wear-resistant fabric of claim 1, wherein: the photoinitiator is one or more of hydrogen abstraction type photoinitiators, cracking type photoinitiators and acyl phosphine oxides.

9. The composite wear-resistant fabric of claim 1, wherein: the photoinitiator is one or more of methyl benzoylformate, 1-hydroxycyclohexyl phenyl ketone, isopropyl thioxanthone and 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.

10. The composite wear-resistant fabric of claim 1, wherein: the preparation method comprises the following steps:

(1) adding the waterborne polyurethane acrylate, the reactive diluent, the deionized water and the dispersing agent into a stirring kettle, uniformly stirring, then adding the modified nano-silica to uniformly disperse the modified nano-silica, and finally adding the photoinitiator and uniformly stirring to obtain the wear-resistant material;

(2) and coating the wear-resistant material on the surface of the base cloth layer, and curing by ultraviolet light to obtain the composite wear-resistant fabric.

Technical Field

The application belongs to the technical field of fabrics, and particularly relates to a composite wear-resistant fabric.

Background

The traditional fabric is usually woven by natural fibers such as cotton, hemp, silk and the like, the natural fibers usually have the advantages of moisture absorption, air permeability, no harm to bodies and the like, but the natural fibers are easy to wrinkle, deform and wear. The artificial fiber is a chemical fiber prepared by taking a polymer as a raw material and carrying out chemical treatment and mechanical processing. The artificial fiber has the performance similar to that of natural fiber, good hygroscopicity, air permeability and dyeability, soft hand feeling and rich luster, and is an important textile material.

In order to improve the defects of the natural fibers in performance, the following methods can be adopted: firstly, natural fibers and artificial fibers are blended; secondly, compounding artificial fiber fabric on the natural fiber fabric; thirdly, a protective layer is attached to the natural fiber fabric. Chinese patent document CN 112760998A discloses a wear-resistant and crease-resistant fabric, which is prepared by coating a wear-resistant and crease-resistant coating on a base fabric layer to improve the wear-resistant and crease-resistant properties of the fabric, wherein the wear-resistant and crease-resistant coating comprises polyurethane, epoxy resin, polyester fiber, polyamide, a dispersant, polytetrahydrofuran, butyl acrylate, silicone resin, ethyl cellulose, graphene, glass fiber, pigment, hydroxyl silicone oil, carbon fiber, a curing agent, and an organic solvent. After the wear-resistant crease-resistant coating is coated on a base fabric layer, the wear resistance and crease resistance of the base fabric layer can be effectively improved. However, the wear-resistant crease-resistant coating is an organic system and adopts an organic solvent, the organic wear-resistant crease-resistant coating is not environment-friendly, and the base fabric layer needs to be soaked in the organic solvent for 4 hours at 50-60 ℃, then dried at 80-90 ℃, and easily damaged to a certain extent after being soaked in the organic solvent for a long time, so that the performance of the fabric is finally influenced.

Therefore, there is a need to develop a more environment-friendly base fabric treatment method, which can improve the wear resistance of the base fabric layer, reduce the pollution to the environment as much as possible, avoid the possibility of damaging the base fabric layer, and obtain a wear-resistant fabric with more excellent performance.

Disclosure of Invention

In order to solve the problems, the application discloses a composite wear-resistant fabric, a proper amount of modified nano silicon dioxide is added in a wear-resistant layer, so that the wear resistance of the fabric can be effectively improved, the prepared fabric is not easy to wear, and the service life is longer; the wear-resistant layer adopts a water-based system, is more environment-friendly and does not damage the base cloth layer; in addition, the wear-resistant layer is an ultraviolet curing system, can be cured under ultraviolet irradiation to obtain the wear-resistant layer, and has low curing temperature.

The application provides a compound wear-resisting surface fabric, adopts following technical scheme:

the composite wear-resistant fabric comprises a base fabric layer and a wear-resistant layer, wherein the wear-resistant layer comprises the following components in parts by weight: 50-70 parts of water-based polyurethane acrylate, 10-20 parts of reactive diluent, 20-30 parts of modified nano silicon dioxide, 0.2-2 parts of dispersant, 0.5-3 parts of photoinitiator and 10-30 parts of deionized water.

Preferably, the reactive diluent is one or more selected from hydroxyethyl methacrylate, tripropylene glycol diacrylate, dipropylene glycol diacrylate, tetrahydrofuran acrylate, trimethylolpropane triacrylate and pentaerythritol triacrylate.

Preferably, the modifier used for modifying the nanosilica is a silane coupling agent having a double bond.

Preferably, the silane coupling agent of the silane coupling agent with double bonds is one or more of a silane coupling agent KH-570, a silane coupling agent A-171, a silane coupling agent A-151 and a mildew-proof silane coupling agent.

Preferably, the structural formula of the mildew-proof silane coupling agent is as follows:

the mildew-proof silane coupling agent is prepared by the following method:

the method comprises the following steps: adding sufficient DMF into a reaction kettle, and mixing 2-allyl-6-hydroxybenzoic acid phenyl ester and p-phenylenediamine according to a molar ratio of 1: 2, adding the mixture into a reaction kettle, stirring and dissolving, heating to 180 ℃, carrying out reflux reaction for 4 hours, then carrying out reduced pressure distillation under the pressure of 0.4MPa to remove a solvent and unreacted substances, then increasing the pressure to 0.7MPa, carrying out reduced pressure distillation to remove middle-boiling-point substances, crystallizing, drying and crushing the middle-boiling-point substances to obtain a product I, 2-allyl-6-hydroxybenzoic acid phenyl ester and p-phenylenediamine according to the molar ratio of 1:1, the reaction equation is:

step two: adding the product I and sufficient DMF into a reaction kettle, heating and stirring for dissolving, then adding trimethoxy silane according to the molar ratio of 1:1 to the product I, adding 30ppm of platinum catalyst, stirring and heating to 100 ℃, reacting for 10 hours, and removing the DMF by reduced pressure distillation to obtain the mildew-proof silane coupling agent, wherein the reaction equation is as follows:

preferably, the preparation method of the modified nano-silica comprises the following steps: preparing ethanol into 85-95% ethanol water solution, adding silane coupling agent, hydrolyzing for a certain time, adding nano silicon dioxide, performing modification treatment for 20-30min, filtering, washing, and drying to obtain the modified nano silicon dioxide.

Preferably, the dispersant is a polycarboxylate dispersant.

Preferably, the photoinitiator is one or more of hydrogen abstraction type photoinitiator, cracking type photoinitiator and acyl phosphine oxide.

Preferably, the photoinitiator is one or more of methyl benzoylformate, 1-hydroxycyclohexyl phenyl ketone, isopropyl thioxanthone and 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.

Preferably, the composite wear-resistant fabric is prepared by the following method:

(2) and coating the wear-resistant material on the surface of the base cloth layer, and curing by ultraviolet light to obtain the composite wear-resistant fabric.

The application has the following beneficial effects:

(1) according to the composite wear-resistant fabric, a proper amount of modified nano silicon dioxide is added in the wear-resistant layer, so that the wear resistance of the fabric can be effectively improved, the prepared fabric is not easy to wear, the service life is longer, and the windproof effect is good; the wear-resistant layer adopts a water-based system, is more environment-friendly and does not damage the base cloth layer; in addition, the wear-resistant layer is an ultraviolet curing system, can be cured under ultraviolet irradiation to obtain the wear-resistant layer, and has low curing temperature.

(2) The modifier used for modifying the nano silicon dioxide is a silane coupling agent with double bonds, the double bonds can be bonded with urethane acrylate, on one hand, nano silicon dioxide particles can be fixed on resin, on the other hand, a certain traction effect can be generated on the nano silicon dioxide particles, so that the nano silicon dioxide particles are more uniformly arranged on the surface of the wear-resistant layer, and the wear resistance is further improved.

(3) The modifying agent for modifying the nano silicon dioxide can select a mildew-proof silane coupling agent, the mildew-proof silane coupling agent has a double bond capable of generating bonding reaction with urethane acrylate, and also has a structure of a mildew-proof agent salicylanilide, so that an effective mildew-proof effect can be achieved on the fabric, and the mildew-proof agent can be particularly used for storing the fabric in a humid environment and has a good mildew-proof protection effect.

Detailed Description

The present application will now be described in further detail with reference to examples.

Preparing modified nano silicon dioxide:

KH-570 modified nano-silica: adding 900mL of ethanol into 100mL of deionized water to prepare an ethanol aqueous solution, then adding 20g of silane coupling agent KH-570, dissolving, performing ultrasonic hydrolysis for 5min, then adding 100g of nano-silica, performing modification treatment for 30min under stirring, filtering, washing and drying to obtain the KH-570 modified nano-silica.

A-171 modified nano-silica: adding 900mL of ethanol into 100mL of deionized water to prepare an ethanol aqueous solution, then adding 20g of silane coupling agent A-171, dissolving, performing ultrasonic hydrolysis for 5min, then adding 100g of nano-silica, performing modification treatment for 30min under stirring, filtering, washing and drying to obtain A-171 modified nano-silica.

A-151 modified nano-silica: adding 900mL of ethanol into 100mL of deionized water to prepare an ethanol aqueous solution, then adding 20g of silane coupling agent A-151, dissolving, performing ultrasonic hydrolysis for 5min, then adding 100g of nano-silica, performing modification treatment for 30min under stirring, filtering, washing and drying to obtain A-151 modified nano-silica.

Mildew-proof modified nano silicon dioxide: adding 900mL of ethanol into 100mL of deionized water to prepare an ethanol aqueous solution, then adding 20g of mildew-proof silane coupling agent, heating to 50 ℃ for dissolution, performing ultrasonic hydrolysis for 5min, then adding 100g of nano-silica, performing modification treatment for 30min under stirring, filtering, washing and drying to obtain the mildew-proof modified nano-silica.

KH-550 modified nano-silica: adding 900mL of ethanol into 100mL of deionized water to prepare an ethanol aqueous solution, then adding 20g of silane coupling agent KH-550, dissolving, performing ultrasonic hydrolysis for 5min, then adding 100g of nano-silica, performing modification treatment for 30min under stirring, filtering, washing and drying to obtain the KH-550 modified nano-silica.

The base fabric layer used in each of the examples and comparative examples had a grammage of 65g/m²The terylene grey cloth.

Example 1

(1) Adding 50g of waterborne polyurethane acrylate, 5g of hydroxyethyl methacrylate, 5g of trimethylolpropane triacrylate, 10g of deionized water and 0.2g of SN-5040 into a stirring kettle, uniformly stirring, then adding 20g A-171 modified nano silicon dioxide, stirring at 1200r/min for 30min to uniformly disperse the A-171 modified nano silicon dioxide, finally adding 0.5g of methyl benzoylformate, and uniformly stirring to obtain the wear-resistant material;

(2) uniformly coating the wear-resistant material on the surface of the base cloth layer by adopting a roller coating mode, wherein the coating weight is 10g/m²And obtaining the composite wear-resistant fabric after ultraviolet curing, wherein the curing energy of the ultraviolet curing is 600mJ/cm²The curing speed was 8 mm/s.

Example 2

(1) Adding 55g of waterborne polyurethane acrylate, 10g of tripropylene glycol diacrylate, 3g of pentaerythritol triacrylate, 15g of deionized water and 0.7g of OROTAN731A into a stirring kettle, uniformly stirring, then adding 22g of KH-570 modified nano-silica, stirring at 1200r/min for 30min to uniformly disperse the KH-570 modified nano-silica, finally adding 1.2g of 1-hydroxycyclohexyl phenyl ketone, and uniformly stirring to obtain the wear-resistant material;

Example 3

(1) Adding 65g of aqueous polyurethane acrylate, 10g of dipropylene glycol diacrylate, 8g of trimethylolpropane triacrylate, 25g of deionized water and 1.6g of SN-5040 into a stirring kettle, uniformly stirring, then adding 28g A-151 modified nano-silica, stirring at 1200r/min for 30min to uniformly disperse the A-151 modified nano-silica, finally adding 2.3g of isopropyl thioxanthone, and uniformly stirring to obtain the wear-resistant material;

Example 4

(1) Adding 70g of waterborne polyurethane acrylate, 10g of hydroxyethyl methacrylate, 10g of trimethylolpropane triacrylate, 30g of deionized water and 2g of OROTAN731A into a stirring kettle, uniformly stirring, then adding 15g of KH-570 modified nano-silica and 15g A-171 modified nano-silica, stirring at 1200r/min for 30min to uniformly disperse the modified nano-silica, finally adding 3g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, and uniformly stirring to obtain the wear-resistant material;

Example 5

(1) Adding 60g of waterborne polyurethane acrylate, 5g of tripropylene glycol diacrylate, 10g of trimethylolpropane triacrylate, 20g of deionized water and 1.1g of OROTAN731A into a stirring kettle, uniformly stirring, then adding 25g of KH-570 modified nano-silica, stirring at 1200r/min for 30min to uniformly disperse the KH-570 modified nano-silica, finally adding 1.8g of 1-hydroxycyclohexyl phenyl ketone, and uniformly stirring to obtain the wear-resistant material;

(2) uniformly coating the wear-resistant material by adopting a roller coating modeThe coating weight on the surface of the base cloth layer is 10g/m²And obtaining the composite wear-resistant fabric after ultraviolet curing, wherein the curing energy of the ultraviolet curing is 600mJ/cm²The curing speed was 8 mm/s.

Example 6

(1) Adding 60g of waterborne polyurethane acrylate, 5g of tripropylene glycol diacrylate, 10g of trimethylolpropane triacrylate, 20g of deionized water and 1.1g of OROTAN731A into a stirring kettle, uniformly stirring, then adding 25g of mildew-proof modified nano-silica, stirring at 1200r/min for 30min to uniformly disperse the mildew-proof modified nano-silica, finally adding 1.8g of 1-hydroxycyclohexyl phenyl ketone, and uniformly stirring to obtain the wear-resistant material;

Comparative example 1

(1) Adding 60g of aqueous polyurethane acrylate, 5g of tripropylene glycol diacrylate, 10g of trimethylolpropane triacrylate, 20g of deionized water and 1.1g of OROTAN731A into a stirring kettle, uniformly stirring, then adding 25g of KH-550 modified nano-silica, stirring at 1200r/min for 30min to uniformly disperse the KH-550 modified nano-silica, finally adding 1.8g of 1-hydroxycyclohexyl phenyl ketone, and uniformly stirring to obtain the wear-resistant material;

Comparative example 2

(1) Adding 60g of waterborne polyurethane acrylate, 5g of tripropylene glycol diacrylate, 10g of trimethylolpropane triacrylate, 20g of deionized water and 1.1g of OROTAN731A into a stirring kettle, uniformly stirring, then adding 22g of KH-570 modified nano-silica and 3g of salicylanilide, stirring at 1200r/min for 30min to uniformly disperse the KH-570 modified nano-silica and the salicylanilide, finally adding 1.8g of 1-hydroxycyclohexyl phenyl ketone, and uniformly stirring to obtain the wear-resistant material;

The composite abrasion resistant fabrics obtained in examples 1 to 6 and comparative examples 1 to 2 were tested, wherein the abrasion resistance was tested according to ISO 5981-2007; the antibacterial property is tested according to GB/T20944.3-2008, and the initial antibacterial rate and the antibacterial rate after washing for 60 times are respectively tested, and candida albicans is used as a test strain. The test results are shown in table 1.

TABLE 1

As can be seen from table 1, the wear resistance of the composite wear-resistant fabric prepared in examples 1 to 6 of the present application reaches more than 1400 times, and has good wear resistance, the initial antibacterial rate of the composite wear-resistant fabric prepared in example 6 reaches 99.4%, the antibacterial effect is excellent, and the antibacterial rate still reaches 98.6% after 60 times of washing, which indicates that the composite wear-resistant fabric prepared in the present application has a durable antibacterial effect, and in addition, since the mildewproof coupling agent used in example 6 contains the benzene ring structure, there may be a certain benefit in improving wear resistance, and the wear resistance is slightly higher than that of example 5. It can be seen from comparative example 1 that when the filler in comparative example 1 is silane coupling agent KH-550 modified nano-silica, the abrasion resistance is only 1266 times, which is probably because KH-550 modified nano-silica cannot undergo an effective bonding reaction with the matrix resin and nano-silica is only physically doped in the abrasion resistant layer and is easily abraded. It can be seen from comparative example 2 that when the antibacterial agent in comparative example 2 is added alone in the form of salicylanilide, the prepared wear-resistant composite fabric has a good initial antibacterial rate, but the antibacterial rate is significantly reduced to 76.2% after 60 times of water washing, and the antibacterial durability is poor.

The present embodiment is merely illustrative and not restrictive, and various changes and modifications may be made by persons skilled in the art without departing from the scope of the present invention as defined in the appended claims. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

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