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Making method of acid-proof polyamide fabric

A nylon and acid-proof technology is applied in the field of preparation of acid-proof nylon fabrics, which can solve the problems of environmental and human health hazards, contact with human body, and fabric damage, and achieve the effects of reducing damage, increasing fastness, and improving strength.

Inactive Publication Date: 2014-03-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nylon fabric is used as an anti-acid clothing fabric. It has soft hand feeling, good elasticity and wear resistance. However, when it is attacked by acid, the acid will seep into the human body from the fabric gap, burn the human body, and dissolve the fiber, causing fabric damage and acid contact. human body burn
Therefore, it is necessary to carry out acid-proof finishing on fabrics to prevent acid from penetrating fabrics and dissolving fabric fibers, and to prevent burns to the human body. At present, the most used acid-proof finishing agents for fabrics are organic fluorine, and its main active ingredient is perfluorooctane yellow acyl compound (PFOS ), however, PFOS is currently one of the most difficult to degrade organic pollutants, which poses serious hazards to the environment and human health.

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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  • Making method of acid-proof polyamide fabric
  • Making method of acid-proof polyamide fabric
  • Making method of acid-proof polyamide fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The special acid-resistant polyurethane resin for nylon fabric described in this embodiment is formulated by weight percentage from the following components:

[0024]

[0025]

[0026] The preparation method of acid-proof polyamide fiber hook and loop comprises the steps:

[0027] 1. First add polyoxypropylene ether polyol, diphenylmethane diisocyanate, polycarbonate (5%), ε-caprolactone, methyl ethyl ketone, chain extender HER and antioxidant in proportion to the reaction kettle Agent CXAO, reacted at 70°C for 1 hour to make an anti-acid finishing agent, add the remaining polycarbonate to the anti-acid finishing agent in a proportion of 25.3% by weight to increase viscosity, when the solid content reaches 50%, that is When the sum of polyoxypropylene ether polyol, diphenylmethane diisocyanate, polycarbonate and ε-caprolactone reaches 50%, it is blocked with an end-capping agent ethylene glycol to obtain an acid-resistant polyurethane resin;

[0028] 2. Fully mix...

Embodiment 2

[0034] The special acid-resistant polyurethane resin for nylon fabric described in this embodiment is formulated by weight percentage from the following components:

[0035]

[0036] The preparation method of acid-proof nylon fabric comprises the steps:

[0037] 1. First add polyoxypropylene ether polyol, diphenylmethane diisocyanate, polycarbonate (8%), ε-caprolactone, methyl ethyl ketone, chain extender HER and antioxidant CXAO into the reaction kettle , After reacting at 75°C for 1.5 hours, add the remaining polycarbonate to increase viscosity, when the solid content reaches 50%, that is, polyoxypropylene ether polyol, diphenylmethane diisocyanate, polycarbonate and ε-hexyl When the sum of the esters reaches 50%, it is blocked with an end-blocking agent ethylene glycol to obtain an acid-resistant polyurethane resin.

[0038] 2. Fully mix the acid-resistant polyurethane resin, butanone and cross-linking agent at 45°C to make an acid-resistant reinforcing adhesive. The we...

Embodiment 3

[0044] The special acid-resistant polyurethane resin for nylon fabric described in this embodiment is formulated by weight percentage from the following components:

[0045]

[0046] The preparation method of acid-proof nylon fabric comprises the steps:

[0047] 1. First add polyoxypropylene ether polyol, diphenylmethane diisocyanate, polycarbonate (add 10%), ε-caprolactone, butanone, chain extender HER and antioxidant CXAO to the reaction kettle , after reacting at 80°C for 1.5 hours, add the remaining polycarbonate to increase viscosity, when the solid content reaches 50%, that is, polyoxypropylene ether polyol, diphenylmethane diisocyanate, polycarbonate and ε-hexyl When the sum of the esters reaches 50%, it is blocked with an end-blocking agent ethylene glycol to obtain an acid-resistant polyurethane resin.

[0048] 2. Fully mix the acid-resistant polyurethane resin, butanone and cross-linking agent at 50°C to make an acid-resistant reinforcing adhesive. The weight rat...

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 making method of an acid-proof polyamide fabric. The method comprises the following steps: preparing an acid-proof finishing agent; and spraying the right surface of a polyamide fabric with an acid-proof reinforcing adhesive, coating the wrong side of the polyamide fabric with the acid-proof reinforcing adhesive, and carrying out waterproof finishing of the above obtained polyamide fabric. The special acid-proof finishing agent used by the polyamide fabric made through the method is nontoxic, odorless, safe and reliable, has a lasting acid proofing effect, and overcomes the difficult degradation of perfluorooctane sulfonyl compounds in present acid-proof finishing agents and the severe harms of the compounds to the environment and human bodies. The polyamide fabric obtained after the acid-proof finishing is difficult for an acidic liquid to adhere and penetrate, substantially reduces the damages of the acidic liquid to the fabric, improves the use strength, guarantees the effectiveness as a fastener, and provides a safety protection effect for workers contacting with acids.

Description

technical field [0001] The invention relates to a processing method of nylon fabric, in particular to a preparation method of acid-proof nylon fabric. Background technique [0002] With the acceleration of the pace of economic construction, the application range and consumption of acid are also expanding. According to incomplete statistics, the current annual consumption of three acids (sulfuric acid, nitric acid, hydrochloric acid) in my country is about 300,000 tons, and the scope of use involves petroleum, chemical industry , machinery, electroplating, non-ferrous smelting, battery and other industries. During the production, transportation, storage and use of acid, because of its corrosive and permeable properties, workers who come into contact with acid must wear acid-proof protective clothing to ensure personal and production safety. Nylon fabric is used as an anti-acid clothing fabric. It has soft hand feeling, good elasticity and wear resistance. However, when it is ...

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 Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/44C08G18/32C08G18/30D06M15/572D06M101/34
CPCC08G18/7671C08G18/4018C08G18/44C08G18/48C08G18/6607D06M15/572D06M2101/34
Inventor 王其
Owner DONGHUA UNIV
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