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Method for preparing multifunctional protective clothing for mine

A protective clothing, multi-functional technology, applied in the fields of biochemical fiber treatment, textile and papermaking, fiber treatment, etc., can solve problems such as unfavorable staff health, easy to breed bacteria, etc., and achieve the effect of not easy to precipitate and improve washability.

Inactive Publication Date: 2020-06-26
安徽弋尚纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For underground workers, it is very important to keep warm in a dark, humid and cold environment. Cotton fabrics are warm and comfortable, but cotton fabrics are highly hygroscopic and easy to breed bacteria in humid environments, which is not conducive to the health of workers. Therefore, the development of waterproof And it is of great significance to use cotton fabrics with antibacterial properties in the preparation of protective clothing

Method used

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  • Method for preparing multifunctional protective clothing for mine
  • Method for preparing multifunctional protective clothing for mine
  • Method for preparing multifunctional protective clothing for mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 As shown, the preparation of the modified cross-linking agent

[0030] In the reaction flask, add 100ml of solvent pyridine, weigh 10mmol of L-aspartic acid, stir to dissolve it completely, then add 11-12mmol of γ-chloropropyltrimethoxysilane drop by drop, after stirring and mixing, the reaction flask Put it into a microwave chemical reactor, heat the reaction by microwave at a power of 560W and a temperature of 110-115°C for 5-7h. After the reaction is over, cool it down to room temperature naturally, and remove the solvent by rotary evaporation. The crude product is recrystallized with acetone and dried. After that, the modified cross-linking agent M1 is obtained;

[0031] After detection, the mass spectrum of the raw material intermediate M1 is: HRMS m / z (ESI + )calcd for C 10 h 21 NO 7 Si([M] + ), 295.11, found 295.3602.

Embodiment 2

[0033] see figure 2 Shown, the second step, the preparation of modified cotton fiber

[0034] Preparation of modified solution: Weigh the modified cross-linking agent M1 and sodium dihydrogen phosphate prepared in the first step in deionized water, and mix the modified cross-linking agent M1 with a concentration of 50g / L and 65g / L of sodium dihydrogen phosphate The aqueous solution is the modified solution;

[0035] The pretreatment of cotton fibers is as follows: immerse 10 g of cotton fibers in 200 ml of 10% sodium hydroxide aqueous solution, stir for 30 min, remove the cotton fibers and wash off the lye with deionized water, and dry at room temperature.

[0036] Immerse the pretreated cotton fiber in the modified solution, the bath ratio of cotton fiber and modified solution is 1g:30ml; then place it in a water bath magnetic stirring pot, the temperature of the water bath is 70°C, heat preservation and stirring for 11h, take out Cotton fibers were placed in an oven and d...

Embodiment 3

[0039] Preparation of antibacterial finishing solution:

[0040] In a beaker, add 50ml of deionized water, weigh 15mg of sodium citrate and add it, dissolve completely, add 2mg of silver nitrate, stir and mix for 30min, then add 2ml of 10mmol / L NaBH dropwise 4 After adding the aqueous solution, adjust the pH of the solution to 12 with 10% sodium hydroxide aqueous solution, continue to stir for 5 minutes, age for 3 hours, centrifuge, wash with deionized water, and vacuum dry to obtain the silver finishing agent, and dissolve the silver finishing agent In distilled water, prepare an antibacterial finishing solution with a concentration of 20 mg / L for subsequent use.

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Abstract

The invention discloses a method for preparing multifunctional protective clothing for a mine, and the prepared protective clothing has anti-moisture and anti-bacterial properties. Cotton fibers are used as the base material, and the cotton fibers are first modified; the carboxyl groups on a modified cross-linking agent react with the hydroxyl groups on the cotton fibers to graft the modified cross-linking agent onto the cotton fibers; through the electron-donating properties of un-reacted carboxyl groups, the un-reacted carboxyl groups can chelate with silver atoms in an antibacterial finishing liquid, so that the silver finishing agent is firmly loaded on cotton fibers by a chemical bonding manner, therefore, the washing resistance of the antibacterial active groups is greatly improved,the precipitation is not easy to occur, and the prepared protective clothing has long-lasting antibacterial properties; in addition, the modified cross-linking agent grafted onto the cotton fibers contains a large amount of silicone grease bonds, which makes the cotton fiber have a certain water resistance, and is beneficial to moisture-proof and keeping warm in a wet mine; and in addition, the cotton fibers with reduced water absorption can maintain the antibacterial properties more lasting.

Description

technical field [0001] The invention belongs to the technical field of fabrics, and in particular relates to a preparation method of multifunctional protective clothing for mines. Background technique [0002] my country is one of the countries with strong coal resources, and the number of coal miners is also the largest in the world. However, the underground operation of coal mines is a kind of work with a special environment. Due to the influence of the geological environment, the working conditions of most coal sites are poor, dark, humid, and the working face is narrow. , is also accompanied by the constant threat of five natural disasters such as gas, coal dust, water, fire, and roof. Therefore, in order to protect the safety of the majority of coal mine employees, it is particularly important to use protective equipment that effectively prevents occupational hazards. [0003] Cotton fabric has the advantages of good air permeability, soft hand feeling, renewability, low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/513D06M11/71D06M11/83D06M101/06
CPCD06M11/71D06M11/83D06M13/513D06M16/00D06M2101/06
Inventor 陈伟林绍辉
Owner 安徽弋尚纺织科技有限公司
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