CN108909106B - Elastic composite material cloth - Google Patents

Elastic composite material cloth Download PDF

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Publication number
CN108909106B
CN108909106B CN201810635536.9A CN201810635536A CN108909106B CN 108909106 B CN108909106 B CN 108909106B CN 201810635536 A CN201810635536 A CN 201810635536A CN 108909106 B CN108909106 B CN 108909106B
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elastic
layer
stirring
water
drying
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CN108909106A (en
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不公告发明人
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JIAXING DEYONG TEXTILES Co.,Ltd.
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Jiaxing Deyong Textiles Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B23/046—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B23/08—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • D06M11/155—Halides of elements of Groups 2 or 12 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/12—Aldehydes; Ketones
    • D06M13/123—Polyaldehydes; Polyketones
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35—Heterocyclic compounds
    • D06M13/352—Heterocyclic compounds having five-membered heterocyclic rings
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/392—Nitroso compounds; Nitro compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/05—Cellulose or derivatives thereof
    • D06M15/09—Cellulose ethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/12—Processes in which the treating agent is incorporated in microcapsules
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  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
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Abstract

An elastic composite cloth, which is characterized in that: elastic composite material cloth is bilayer structure, and the one deck is the elastic material area that nylon fiber made, and the material area that the other deck was made for cellulose fiber combines through the polymer elastic layer between the two-layer, warp direction elastic band and latitudinal direction elastic band between the space be the rhombus, the polymer elastic layer adopt be the polymer elastic material, include thermoplastic elastomer or thermosetting elastomer at least.

Description

Elastic composite material cloth
This application is a divisional application of the invention patent application having application number 2016106277820 entitled durable elastic composite, application date 20160803.
Technical Field
The invention belongs to the field of elastic composite materials.
Background
In 2009 "Bedjump", a fire was quickly run on a website, and chinese was translated into "trampoline" or "trampoline". There are numerous enthusiasts of this sport all over the world. The enthusiast usually chooses a bed with good elasticity, jumps up, and makes various actions in the air. The trampoline has one frame supported by foot rests and one fabric stretched with several springs for the user to stand on the trampoline surface for continuous bouncing. The prior art trampolines have the following disadvantages: 1. the trampoline frame is bulky, so that when the trampoline product is manufactured by a manufacturer, each assembled trampoline has a considerable volume, which not only occupies a limited space in the trampoline when the finished trampoline product is stocked in the trampoline, but also increases transportation costs when the finished trampoline product is sold, and furthermore, the trampoline occupies a considerable indoor space when the trampoline is not used regardless of a shop or an individual user for sale. 2. The existing trampoline adopts a spring as an elastic force source, and a protective pad needs to be laid above the spring for safety, so that accidents are avoided. However, such protection mats require an increase in the cost of the trampoline; the time of assembling has been increased, simultaneously, because the spring can produce elastic deformation, the protection pad is the strict cover when not using originally, but through the elastic deformation back of spring, the protection pad takes place to deviate, causes to cover unevenly and makes the spring expose to probably increase the incident rate of incident. 3. And because the spring is adopted as the elastic piece and is covered and paved by the protective cushion, the effective use area of the trampoline is greatly reduced, and the existence of the spring limits the actual jumping space of the trampoline. In the prior art, an elastic cloth is used for replacing a spring, but the problems of short service life of the elastic cloth, poor elasticity uniformity of cloth cover and the like exist.
Disclosure of Invention
In order to solve the problems, the technical scheme of the invention is as follows:
a durable, elastic composite characterized by: the combined material is bilayer structure, and wherein the elastic material area of one deck for having carried out the ageing resistance arrangement, the arrangement process includes: 1) preparing an anti-aging agent; 2) preparing microcapsules and finishing liquor; 3) and (4) carrying out anti-aging finishing on the nylon elastic material belt by using the prepared finishing liquid.
The elastic composite material cloth is of a double-layer structure, one layer is an elastic material belt made of nylon fibers, the other layer is a material belt made of cellulose fibers, and the two layers are combined through a high-molecular elastic layer; each layer consists of a warp-wise elastic belt and a weft-wise elastic belt, and a gap between the warp-wise elastic belt and the weft-wise elastic belt is rhombic; the gap is 10 to 25 square millimeters; the distance between the longitudinal elastic belts is 2-5 mm; the spacing between the weft elastic belts is 3-6 mm; the polymer elastic layer is made of a polymer elastic material and at least comprises a thermoplastic elastomer or a thermosetting elastomer; wherein the thermoplastic elastomer comprises thermoplastic plastics, polyurethane and polyvinyl chloride; the thermoset elastomer may comprise silicone. The nylon elastic material band is subjected to anti-aging treatment, and the treatment steps are as follows:
1) preparation of anti-ageing agent
Under the protection of nitrogen, adding 3, 4-chloro-2-methylaniline or 2-naphthylamine or 4-amino-3, 2-dimethylazobenzene or 2-amino-4-nitrotoluene into a mixed solution of 1.5-4 mol/L sodium hydroxide water and ethanol, stirring, adding a reducing agent lithium aluminum hydride in several times, reacting at 75-80 ℃ for 0.5-3 h, cooling to room temperature, adding sulfuric acid to adjust the pH value to be 5-6, performing suction filtration, drying in the shade, recrystallizing, drying to obtain a crude functional modifier product, adding a crude functional modifier product, hydrofluoric acid and concentrated nitric acid into a reaction container, heating to 45-50 ℃ for reaction for 1.5-2.0 h, filtering to obtain an off-white product, cooling, suction filtration, drying in the shade, recrystallizing and drying to obtain an anti-aging agent;
2) preparation of anti-aging microcapsule and anti-aging agent finishing liquid
Dispersing an anti-aging agent in a solvent by taking deionized water as the solvent, controlling the speed to be 500-1000 r/min in the stirring process and the stirring dispersion time to be 50-65 min so that anti-aging agent molecules can form a suspension system in an aqueous solution, then adding hydroxyethyl cellulose for dissolving, then stirring at a high speed and dispersing, wherein the stirring temperature is 35-40 ℃, the stirring speed is 3400-3600 r/min, the stirring time is 10-15 min, then adding butanetetracarboxylic acid for chitosan crosslinking, curing at 85-90 ℃ for 10min, filtering to obtain a coarse modified capsule, and performing vacuum drying at 60 ℃ for 24h to obtain the modified capsule containing the anti-aging agent; the core layer is age resister, the capsule layer is made of hydroxyethyl cellulose material, wherein the thickness ratio of the capsule layer to the core layer is 1: 18; 3-6% (owf) of the prepared age resister microcapsule, 3-2 g/l of penetrating agent JFC1 and 7-7.5 of pH value are prepared into age resister finishing liquid;
the volume ratio of the water to the ethanol in the mixed solution of the water and the ethanol is 1: 2; the molar ratio of the lithium aluminum hydride to the 3, 4-chloro-2-methylaniline or the 2-naphthylamine or the 4-amino-3, 2-dimethylazobenzene or the 2-amino-4-nitrotoluene is 2: 1.5; the molar ratio of the hydrofluoric acid to the concentrated nitric acid of the crude product of the functional modifier is 2: 2.2: 1.1.
The addition amount of the age resister is 3.5-16% relative to the mass fraction of water;
the addition amount of the hydroxyethyl cellulose is 2.0-8% of the mass fraction of water;
the weight average molecular weight of the hydroxyethyl cellulose is 20000-25000, and the molar substitution degree is 1.8-1.9.
The mass fraction of the butane tetracarboxylic acid relative to the chitosan is 0.3%.
The diameter of the modified capsule is 2-5 microns, so that the capsule can smoothly pass through a spinning hole, firm combination of the capsule and the fiber is guaranteed, and the mechanical property of the fiber cannot be influenced.
The capsule/core ratio of the modified capsule is generally more than or equal to 1: 10, so that the microcapsule has certain mechanical strength and heat resistance.
The modified capsule has the function of slowly releasing anti-aging functional particles, and is beneficial to maintaining the anti-aging effect for a long time.
3) And (4) carrying out anti-aging finishing on the nylon elastic material belt by using the prepared finishing liquid.
Soaking the nylon elastic material band in the anti-aging agent finishing liquid at a bath ratio of 1:20-50 at 40-50 ℃ for 30-80 minutes, washing with water and drying; then, immersing the belt finished by the anti-aging agent and the fixing solution into the fixing solution according to a bath ratio of 1:20-30, after complete permeation at normal temperature, immersing for two times and rolling for two times, wherein the rolling residual rate is 70-90%, drying at 80 ℃, baking for 2-3 minutes at 100-140 ℃, washing with water, soaping, and airing; the fixing solution comprises glyoxal, magnesium chloride, tartaric acid and water, wherein the content of 40% glyoxal in each liter of water is 20-50g, the content of magnesium chloride in each liter of water is 2-5g, the content of tartaric acid in each liter of water is 1-3g, and the fixing solution is a mixed solution which is uniformly stirred at room temperature.
Compared with the prior art, the elastic composite material cloth has the following beneficial effects:
(1) compared with the prior art, the invention can simultaneously have elastic stretching force with different degrees to enhance the elasticity and durability, and the uniformity of air permeability and elasticity;
(2) the anti-aging agent synthesized by the invention has excellent anti-aging performance of absorbing active free radicals, the preparation process is simple, the yield is high, the anti-aging agent is easy to separate, and the raw materials and the solvent adopted in the preparation process are environment-friendly; the anti-aging agent with a reactive terminal hydroxyl functional group is coated with hydroxyethyl cellulose by a microcapsule method, so that the dispersibility and stability of the anti-aging agent are improved, the dispersibility of the organic anti-aging agent in materials is realized, and the aims of uniform dispersion and low addition amount and high performance of the anti-aging agent are fulfilled; meanwhile, the generated anti-aging agent molecules have excellent anti-aging performance due to the benzotriazole functional group, and particularly, the material generates active free radicals due to radiation, and the active free radicals are inactivated under the action of the anti-aging agent, so that the anti-aging performance of the material is improved; the hydroxyethyl cellulose wall material has good compatibility with the matrix material, is beneficial to the dispersion in the modified microcapsule material nylon material, has little influence on the spinning and the fiber mechanical properties, and improves the aging resistance of the material on the basis of ensuring the fiber properties.
Detailed Description
Example 1
The nylon elastic material belt is subjected to anti-aging treatment, and the treatment steps are as follows:
1) preparation of anti-ageing agent
Adding 3, 4-chloro-2-methylaniline into a mixed solution of 4mol/L sodium hydroxide water and ethanol under the protection of nitrogen, stirring, adding a reducing agent lithium aluminum hydride by times, reacting at 80 ℃ for 3 hours, cooling to room temperature, adding sulfuric acid to adjust the pH value to be 6, performing suction filtration, drying in the shade, recrystallizing, drying again to obtain a crude functional modifier product, adding the crude functional modifier product, hydrofluoric acid and concentrated nitric acid into a reaction container, heating to 50 ℃, reacting for 1.5 hours, filtering to obtain an off-white product, cooling, suction filtration, drying in the shade, recrystallizing and drying to obtain the anti-aging agent;
2) preparation of anti-aging microcapsule and anti-aging agent finishing liquid
Dispersing an anti-aging agent in a solvent by taking deionized water as the solvent, controlling the speed to be 1000r/min in the stirring process and the stirring dispersion time to be 65min so that anti-aging agent molecules can form a suspension system in an aqueous solution, then adding hydroxyethyl cellulose for dissolving, then stirring and dispersing at a high speed, wherein the stirring temperature is 40 ℃, the stirring speed is 3600r/min, the stirring time is 15min, then adding butanetetracarboxylic acid for chitosan crosslinking, curing at 85 ℃ for 10min, filtering to obtain a coarse modified capsule, and performing vacuum drying at 60 ℃ for 24h to obtain the modified capsule containing the anti-aging agent; the core layer is age resister, the capsule layer is made of hydroxyethyl cellulose material, wherein the thickness ratio of the capsule layer to the core layer is 1: 18; 3.6 percent (owf) of the prepared age resister microcapsule, 1.2g/l of penetrant JFC and 7 of pH value are prepared into age resister finishing liquid;
the volume ratio of the water to the ethanol in the mixed solution of the water and the ethanol is 1: 2; the molar ratio of the lithium aluminum hydride to the 3, 4-chloro-2-methylaniline is 2: 1.5; the molar ratio of the hydrofluoric acid to the concentrated nitric acid of the crude product of the functional modifier is 2: 2.2: 1.1.
The addition amount of the anti-aging agent is 8 percent relative to the mass fraction of water;
the mass fraction of the addition amount of the hydroxyethyl cellulose relative to the water is 2.8 percent;
the weight average molecular weight of the hydroxyethyl cellulose is 28000, and the molar substitution degree is 1.8.
The mass fraction of the butane tetracarboxylic acid relative to the chitosan is 0.3%.
The diameter of the modified capsule is 4 μm, which is beneficial for the capsule to smoothly pass through a spinning hole, ensures the firm combination of the capsule and the fiber, and can not influence the mechanical property of the fiber.
The capsule/core ratio of the modified capsule is generally more than or equal to 1: 10, so that the microcapsule has certain mechanical strength and heat resistance.
3) And (4) carrying out anti-aging finishing on the nylon elastic material belt by using the prepared finishing liquid.
Soaking the nylon elastic material belt in the age resister finishing liquid at the bath ratio of 1:25 at 44 ℃ for 46 minutes, washing with water and drying; then, the belt which is finished by the anti-aging agent and the fixing solution are immersed into the fixing solution according to the bath ratio of 1:25, after the belt and the fixing solution are completely permeated at normal temperature, the belt and the fixing solution are immersed for two times and rolled for two times, the rolling residual rate is 89%, the belt and the fixing solution are dried at 80 ℃, baked for 3 minutes at 130 ℃, and then washed by water, soaped and dried; the fixing solution comprises glyoxal, magnesium chloride, tartaric acid and water, wherein the content of 40% glyoxal in each liter of water is 26g, the content of magnesium chloride in each liter of water is 2.5g, the content of tartaric acid in each liter of water is 1.3g, and the fixing solution is mixed solution which is uniformly stirred at room temperature.
The other layer of the elastic material belt made of nylon fiber is a material belt made of cellulose fiber, and the two layers are combined through a polymer elastic layer; each layer consists of a warp-wise elastic belt and a weft-wise elastic belt, and a gap between the warp-wise elastic belt and the weft-wise elastic belt is rhombic; the gap is 18 square millimeters; the distance between the warp-wise elastic belts is 2.5 mm; the spacing between the weft elastic belts is 3.6 mm; the polymer elastic layer is made of polymer elastic materials including polyvinyl chloride.
The elastic trampoline cloth is applied to the trampoline.
Example 2
The nylon elastic material belt is subjected to anti-aging treatment, and the treatment steps are as follows:
1) preparation of anti-ageing agent
Under the protection of nitrogen, adding 2-naphthylamine into a mixed solution of 1.5mol/L of sodium hydroxide, namely water and ethanol, stirring, adding a reducing agent lithium aluminum hydride by times, reacting at 80 ℃ for 3 hours, cooling to room temperature, adding sulfuric acid to adjust the pH value to be 6, performing suction filtration, drying in the shade, recrystallizing, drying again to obtain a crude functional modifier product, adding the crude functional modifier product, hydrofluoric acid and concentrated nitric acid into a reaction container, heating to 50 ℃, reacting for 2.0 hours, filtering to obtain an off-white product, cooling, suction filtration, drying in the shade, recrystallizing and drying to obtain an anti-aging agent;
2) preparation of anti-aging microcapsule and anti-aging agent finishing liquid
Dispersing an anti-aging agent in a solvent by taking deionized water as the solvent, controlling the speed to be 1000r/min in the stirring process and the stirring dispersion time to be 50min so that anti-aging agent molecules can form a suspension system in an aqueous solution, then adding hydroxyethyl cellulose for dissolving, then stirring and dispersing at a high speed, wherein the stirring temperature is 40 ℃, the stirring speed is 3600r/min, the stirring time is 15min, then adding butanetetracarboxylic acid for chitosan crosslinking, curing at 90 ℃ for 10min, filtering to obtain a coarse modified capsule, and performing vacuum drying at 60 ℃ for 24h to obtain the modified capsule containing the anti-aging agent; the core layer is age resister, the capsule layer is made of hydroxyethyl cellulose material, wherein the thickness ratio of the capsule layer to the core layer is 1: 18; 3 percent (owf) of the prepared age resister microcapsule, JFC2g/l of penetrant and pH value of 7 are prepared into age resister finishing liquid;
the volume ratio of the water to the ethanol in the mixed solution of the water and the ethanol is 1: 2; the molar ratio of the lithium aluminum hydride to the 2-naphthylamine is 2: 1.5; the molar ratio of the hydrofluoric acid to the concentrated nitric acid of the crude product of the functional modifier is 2: 2.2: 1.1.
The addition amount of the anti-aging agent is 3.5 percent relative to the mass fraction of water;
the mass fraction of the addition amount of the hydroxyethyl cellulose relative to the water is 2.0 percent;
the weight average molecular weight of the hydroxyethyl cellulose is 20000, and the molar substitution degree is 1.8.
The mass fraction of the butane tetracarboxylic acid relative to the chitosan is 0.3%.
The diameter of the modified capsule is 2 μm, which is beneficial for the capsule to smoothly pass through a spinning hole, ensures the firm combination of the capsule and the fiber, and can not influence the mechanical property of the fiber.
The capsule/core ratio of the modified capsule is generally more than or equal to 1: 10, so that the microcapsule has certain mechanical strength and heat resistance.
3) And (4) carrying out anti-aging finishing on the nylon elastic material belt by using the prepared finishing liquid.
Soaking the nylon elastic material belt in the age resister finishing liquid at the bath ratio of 1:20 at 50 ℃ for 30 minutes, washing and drying; then, immersing the belt finished by the anti-aging agent and the fixing solution into the fixing solution according to a bath ratio of 1:20, after complete penetration at normal temperature, immersing for two times and rolling for two times, with a rolling residual rate of 90%, drying at 80 ℃, baking for 2 minutes at 140 ℃, washing with water, soaping, and drying in the air; the fixing solution comprises glyoxal, magnesium chloride, tartaric acid and water, wherein the content of 40% glyoxal in each liter of water is 50g, the content of magnesium chloride in each liter of water is 5g, the content of tartaric acid in each liter of water is 3g, and the fixing solution is mixed liquid which is uniformly stirred at room temperature.
The other layer of the elastic material belt made of nylon fiber is a material belt made of cellulose fiber, and the two layers are combined through a polymer elastic layer; each layer consists of a warp-wise elastic belt and a weft-wise elastic belt, and a gap between the warp-wise elastic belt and the weft-wise elastic belt is rhombic; the gap is 15 square millimeters; the distance between the longitudinal elastic belts is 5 mm; the spacing between the weft elastic belts is 4 mm; the polymer elastic layer is made of polymer elastic materials including silica gel.
The elastic trampoline cloth is applied to the trampoline.
Comparative example 1
Carrying out melt spinning on the modified capsules and the polypropylene particles to obtain modified polypropylene yarns, weaving the modified polypropylene yarns into yarns, and weaving the yarns into elastic trampoline cloth;
the mass fraction of the modified capsules in the modified polypropylene filaments is 2%.
The preparation method of the modified capsule comprises the following specific steps:
(a) preparation of p-dihydroxy p-phenylphosphine
Taking phenylphosphine and paraformaldehyde as raw materials, taking a mixed solution of water and isopropanol as a solvent, and carrying out an affinity addition reaction under the action of a catalyst, wherein the reaction temperature is controlled to be 35-50 ℃, and the reaction time is 3-4 hours; preparing dihydroxymethylphenyl phosphine, adding a mixed solution of hydrogen peroxide and concentrated sulfuric acid as a strong oxidant at 85-95 ℃, carrying out oxidation for 45-60 min to obtain dihydroxymethylphenyl phosphine oxide, adding the synthesized p-dihydroxyphenylphosphine, bromine water and iron powder into a reaction vessel, heating to 65-75 ℃, reacting for 0.5-1.75 h, filtering to obtain a dark red product, adding the dark red product into a 0.2mol/L potassium hydroxide and potassium ethoxide solution at normal temperature, reacting for 1-3 h at 80-95 ℃ after complete dissolution, recrystallizing the product in a steam bath, and repeating for three times to obtain white p-dihydroxyphenylphosphine;
the molar ratio of the phenylphosphine to the paraformaldehyde is 1: 2.1;
the catalyst is vanadium pentoxide, and the molar ratio of the phenylphosphine to the catalyst is 1: 0.03;
the volume ratio of the water to the isopropanol is 1: 0.75;
the mass fraction of the paraformaldehyde is 10 percent;
the mass ratio of the strong oxidant to the phenylphosphine is 1: 2.5;
the mass fraction of the hydrogen peroxide is 20 percent;
the volume ratio of the hydrogen peroxide to the concentrated sulfuric acid in the hydrogen peroxide and concentrated sulfuric acid solution is 1: 1;
the mol ratio of the p-dihydroxy phenyl phosphine, the bromine water and the iron powder is 1: 1.2: 0.01;
the molar ratio of the potassium hydroxide to the potassium ethoxide is 1: 2.5;
(b) preparation of o-nitroaniline diazonium salt
Strongly stirring o-nitroaniline in 12mol/L concentrated nitric acid, rapidly cooling to 0 ℃, adding 4mol/L potassium nitrite aqueous solution after 1.5h, reacting at 0-5 ℃ for 0.5-1.0 h, and filtering to obtain o-nitroaniline diazonium salt;
(c) preparation of azo compounds
Adding the p-dihydroxy p-phenylphosphine prepared in the step (a) into a mixed solution of isopropanol and distilled water, keeping the temperature of the solution at 5-10 ℃, dropwise adding the o-nitroaniline diazonium salt prepared in the step (b) in batches, carrying out suction filtration, washing with water, and drying to obtain an azo compound which is a deep pink crystal;
the volume ratio of the isopropanol to the distilled water in the mixed solution of the isopropanol and the distilled water is 1: 0.75;
the mass fraction of the mixed solution of the p-dihydroxy p-phenylphosphine in isopropanol and distilled water is 4%;
the molar ratio of the p-dihydroxy p-phenylphosphine to the o-nitroaniline diazonium salt is 1: 1;
(d) preparation of anti-ageing agent
Under the protection of nitrogen, adding the azo compound prepared in the step (c) into a mixed solution of 3.0mol/L of sodium hydroxide and water and ethanol, stirring, adding a reducing agent lithium aluminum hydride by times, reacting at 60-65 ℃ for 2 hours, cooling to room temperature, adding nitric acid, adjusting the pH value to 5-6, performing suction filtration, drying in the shade, recrystallizing, drying to obtain a crude functional modifier product, adding the crude functional modifier product, hydrofluoric acid and concentrated nitric acid into a reaction container, heating to 65-75 ℃, reacting for 0.5-1.0 hour, performing filtration to obtain an off-white product, cooling, suction filtration, drying in the shade, recrystallizing and drying to obtain an anti-aging agent;
the volume ratio of the water to the ethanol in the mixed solution of the water and the ethanol is 1: 1;
the molar ratio of the lithium aluminum hydride to the azo compound is 1: 0.5;
the molar ratio of the hydrofluoric acid to the concentrated nitric acid of the crude functional modifier is 1: 1.2: 0.01;
(e) preparation of modified capsules
Dispersing an anti-aging agent in a solvent by taking deionized water as the solvent, controlling the speed to be 800-1200 r/min in the stirring process and the stirring dispersion time to be 30-45 min so that anti-aging agent molecules can form a suspension system in an aqueous solution, then adding hydroxyethyl cellulose for dissolving, then stirring and dispersing at a high speed, wherein the stirring temperature is 45-55 ℃, the stirring speed is 2000-3300 r/min, the stirring time is 20-30 min, then adding butanetetracarboxylic acid for chitosan crosslinking, curing at 65-80 ℃ for 30min, filtering to obtain a coarse modified capsule, and performing vacuum drying at 60 ℃ for 24h to obtain the modified capsule containing the anti-aging agent; the core layer is age resister, the capsule layer is made of hydroxyethyl cellulose material, wherein the thickness ratio of the capsule layer to the core layer is 1: 15.
The addition amount of the anti-aging agent is 3.5 percent relative to the mass fraction of water;
the mass fraction of the addition amount of the hydroxyethyl cellulose relative to the water is 2.0 percent;
the weight average molecular weight of the hydroxyethyl cellulose is 20000-25000, and the molar substitution degree is 1.8-1.9.
The mass fraction of the butane tetracarboxylic acid relative to the chitosan is 0.3%.
The diameter of the modified capsule is 2-5 microns, so that the capsule can smoothly pass through a spinning hole, firm combination of the capsule and the fiber is guaranteed, and the mechanical property of the fiber cannot be influenced.
The capsule/core ratio of the modified capsule is generally more than or equal to 1: 10, so that the microcapsule has certain mechanical strength and heat resistance.
The elastic trampoline cloth is applied to the trampoline.
Comparative example 2
The nylon elastic belt only treated by the anti-aging agent does not contain a cellulose fiber belt layer, namely a composite structure layer is not adopted. The rest of the procedure was the same as in example 2.
After the trampoline bounces 100, 1000, 10000 times, the sunken condition of the central point is measured, and it can be found that the deformation of the elastic material belt is small obviously and the durability is good in the examples 1-2 of the application.
TABLE 1
100 times (mm) 1000 times (mm) 10000 times (mm)
Example 1 0 0 2.9
Example 2 0 0 3.9
Comparative example 1 0 2 56
Comparative example 2 0 4 79
The average value of the difference in the heights of the bounces of the same person at the center point and around the trampoline, as measured by the height of the bounces, is found to be smaller in examples 1-2, which shows the elastic balance of the elastic band of the present application.
TABLE 2
Average height difference (%)
Example 1 2.4
Example 2 3.6
Comparative example 1 6
Comparative example 2 9.7

Claims (1)

1. An elastic composite cloth, which is characterized in that: elasticity combined material cloth is bilayer structure, and the elastic material area that the one deck was made for the nylon fiber, and the material area that another layer was made for the cellulose fiber combines through the polymer elastic layer between two-layer, and every layer all comprises warp direction elastic webbing and latitudinal direction elastic webbing, warp direction elastic webbing and latitudinal direction elastic webbing between the space be the rhombus, the polymer elastic layer adopt be the polymer elastic material, include thermoplastic elastomer or thermosetting elastomer at least, the elastic material area through ageing resistance processing, the processing step is:
1) preparation of anti-ageing agent
Under the protection of nitrogen, adding 3, 4-chloro-2-methylaniline or 2-naphthylamine or 4-amino-3, 2-dimethylazobenzene or 2-amino-4-nitrotoluene into a mixed solution of 1.5-4 mol/L sodium hydroxide water and ethanol, stirring, adding a reducing agent lithium aluminum hydride in several times, reacting at 75-80 ℃ for 0.5-3 h, cooling to room temperature, adding sulfuric acid to adjust the pH value to be 5-6, performing suction filtration, drying in the shade, recrystallizing, drying to obtain a crude functional modifier product, adding a crude functional modifier product, hydrofluoric acid and concentrated nitric acid into a reaction container, heating to 45-50 ℃ for reaction for 1.5-2.0 h, filtering to obtain an off-white product, cooling, suction filtration, drying in the shade, recrystallizing and drying to obtain an anti-aging agent;
2) preparation of anti-aging microcapsule and anti-aging agent finishing liquid
Dispersing an anti-aging agent in a solvent by taking deionized water as the solvent, controlling the speed to be 500-1000 r/min in the stirring process and the stirring dispersion time to be 50-65 min so that anti-aging agent molecules can form a suspension system in an aqueous solution, then adding hydroxyethyl cellulose for dissolving, then stirring at a high speed and dispersing, wherein the stirring temperature is 35-40 ℃, the stirring speed is 3400-3600 r/min, the stirring time is 10-15 min, then adding butanetetracarboxylic acid for chitosan crosslinking, curing at 85-90 ℃ for 10min, filtering to obtain a coarse modified capsule, and performing vacuum drying at 60 ℃ for 24h to obtain the modified capsule containing the anti-aging agent; the core layer is age resister, the capsule layer is made of hydroxyethyl cellulose material, wherein the thickness ratio of the capsule layer to the core layer is 1: 18; 3-6% (owf) of the prepared age resister microcapsule, 3-2 g/L of penetrating agent JFC1 and 7-7.5 of pH value are prepared into age resister finishing liquid;
the volume ratio of the water to the ethanol in the mixed solution of the water and the ethanol is 1: 2; the molar ratio of the lithium aluminum hydride to the 3, 4-chloro-2-methylaniline or the 2-naphthylamine or the 4-amino-3, 2-dimethylazobenzene or the 2-amino-4-nitrotoluene is 2: 1.5; the molar ratio of the hydrofluoric acid to the concentrated nitric acid of the crude functional modifier is 2: 2.2: 1.1;
3) and (4) carrying out anti-aging finishing on the nylon elastic material belt by using the prepared finishing liquid.
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CN102230256A (en) * 2011-06-02 2011-11-02 稳健实业(深圳)有限公司 Elastic non-woven fabric, production method thereof and elastic product
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