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A conductive and heat-insulating fabric based on silver fibers

A silver fiber and fabric technology, applied in fiber processing, fiber chemical characteristics, cellulose/protein conjugated rayon, etc., can solve the problems of reduced binder content, reduced aerosol content, and reduced thermal insulation capacity of fabrics , to achieve the effect of preventing dispersion, improving strength, and high heat insulation

Active Publication Date: 2020-06-12
SHAOXING GOLD SUN TEXTILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The composite yarn prepared by the modified fiber in the present invention has a certain thermal conductivity, and at the same time, because chitosan is evenly distributed on the heat-insulating acetate fiber, and the chitosan contains amino groups, and at the same time, the siloxane-linked polyimide fiber is It also contains a large amount of amino groups. Hydroquinone is due to the crosslinking of formaldehyde. At the same time, formaldehyde is also crosslinked with heat-insulating acetate fiber and siloxane-linked polyimide fiber, so that the adhesive formed by crosslinking formaldehyde and hydroquinone Grafted on heat-insulating acetate fiber and siloxane-linked polyimide fiber, while the adhesive is covering the composite yarn, the adhesive can be firmly fixed on the composite yarn through chemical crosslinking , and then it can realize the adhesion and fixation of the three kinds of fibers, prevent the dispersion of the fibers in the yarn, and improve the strength of the yarn. will be reduced, so that the composite yarn has always had the thermal insulation of the three fibers and the electrical conductivity of the silver fiber, which solves the problem of the adhesive content on the fabric after multiple cleanings by directly adhering the aerosol to the fabric. Reduced, which in turn causes the aerosol content to decrease, which reduces the heat insulation capacity of the fabric

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A conductive and heat-insulating fabric based on silver fibers
  • A conductive and heat-insulating fabric based on silver fibers
  • A conductive and heat-insulating fabric based on silver fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The specific preparation process of heat insulating acetate fiber is as follows:

[0038] Step 1, take by weighing 68g cellulose diacetate and 42g chitosan and be dissolved in the 1.5L acetic acid solution of certain concentration, then add 13g sodium-based bentonite wherein, obtain composite stock solution after mixing;

[0039] Step 2. Add 50 g of ethyl orthosilicate into 500 mL of ethanol solution, stir and dissolve evenly to obtain ethyl orthosilicate solution;

[0040] Step 3. Dissolve 50g of aluminum chloride hexahydrate in 450mL of water, then add the ethyl orthosilicate solution prepared in step 2, stir and mix for 50-70min, so that the ethyl orthosilicate and aluminum chloride hexahydrate are fully Hydrolyze, then drop dilute hydrochloric acid therein to adjust the pH of the solution to 3, and add 6 g of sodium silicate to it at the same time, stir and react for 2 hours, adjust the pH of the solution to 7 by dilute ammonia water, and then stand at room temperat...

Embodiment 2

[0044] The preparation process of siloxane-linked polyimide fiber is as follows:

[0045] ①Add 50g of 3-aminopropyltriethoxysilane to 500mL of toluene, and at the same time add 19g of epichlorohydrin, raise the temperature to 50°C and stir for 5-6 hours, then raise the temperature to 90°C, add 15.5g of carbonic acid Sodium is used as a catalyst, and 60 mL of concentrated ammonia water is added at the same time, and the reaction is stirred for 10-12 hours to obtain diaminosiloxane;

[0046] ② Weigh 40g of pyromellitic dianhydride and add it into 480mL of acetone and stir to dissolve, then add 76.8g of diaminosiloxane into it, stir and react at room temperature for 2h, then add 10g of acetic anhydride dehydrating agent and 4.8g of pyridine into it, heat up React at 50°C for 2 hours to obtain siloxane-linked polyimide;

[0047] ③Add 40g of siloxane-linked polyimide into the mixed solution of 160mL ethanol and 200mL water, then add dilute hydrochloric acid to it to adjust the pH=...

Embodiment 3

[0050] A specific preparation process of a conductive and heat-insulating fabric based on silver fibers is as follows:

[0051] In the first step, the thermal insulation acetate fiber prepared in Example 1 and the siloxane-linked polyimide fiber and silver fiber prepared in Example 2 are woven to form a composite yarn;

[0052] In the second step, 380g of hydroquinone was added into water and stirred to dissolve, then 1kg of composite yarn was added to it, ultrasonically oscillated for 5 minutes, and 3.2L of formaldehyde solution was added dropwise to it after the temperature was raised to 70°C. After the addition is complete, constant temperature and ultrasonic reaction for 3 hours, then add 100g of starch solution to it, and ultrasonic reaction for 30 minutes, and consume the incompletely reacted formaldehyde solution through the starch solution;

[0053] The third step is to pull out the yarn and soak it in ethanol solution for 1 hour, then dry it;

[0054] In the fourth s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a conductive heat-insulating fabric based on silver fibers. A specific preparation process of the conductive heat-insulating fabric includes, firstly, weaving heat-insulating acetate fibers, modified polyimide fibers and silver fibers to form composite yarns; secondly, adding a certain amount of hydroquinone into water to be stirred and dissolving, then adding the compositeyarns into the hydroquinone, preforming ultrasonic vibration for 5 minutes, adding a formaldehyde solution dropwise into the hydroquinone after the temperature is raised to 70 DEG C, preforming a constant temperature ultrasonic reaction for 3 hours after the dropwise addition is completed, then adding a starch solution into the hydroquinone, and preforming an ultrasonic reaction for 30 minutes; thirdly, fishing out the yarns, soaking the yarns in an ethanol solution for 1 hour, and then drying the yarns; fourthly, weaving the dried yarns to obtain the conductive heat-insulating fabric. According to the method, through the preparation of the heat-insulating acetate fibers, the modified polyimide fibers and the silver fibers, the heat-insulating acetate fibers and the modified polyimide fibers have higher heat insulation performance, so that the fabric has high heat insulation performance.

Description

technical field [0001] The invention belongs to the field of fabric preparation and relates to a conductive and heat-insulating fabric based on silver fibers. Background technique [0002] With people's pursuit of quality of life, higher requirements are put forward for the warmth and cold resistance of clothing. In order to achieve the heat preservation performance of clothing, the existing clothing fabrics are impregnated with aerosol, so that the aerosol fills the gaps in the fabric. Then the aerosol is fixed by an adhesive. Because the aerosol has a large pore volume, the fabric has a certain heat insulation performance, but the fabric itself does not have heat insulation performance, so that the heat is conducted through the medium of the fabric itself, so The heat insulation capacity is low, and at the same time, because the aerosol is directly adhered to the fabric, the adhesive content on the fabric is reduced after repeated cleaning, which in turn reduces the aeroso...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D04C1/02D01F6/74D01F8/02D01F8/12D01F1/10
CPCD01D5/003D01F1/10D01F6/74D01F8/02D01F8/12D04C1/02D10B2101/20D10B2201/28D10B2331/14D10B2401/16
Inventor 不公告发明人
Owner SHAOXING GOLD SUN TEXTILE CO LTD
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