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Preparation method of collagen/PA ultrafine fibre non-woven material

A non-woven material, collagen technology, applied in the direction of fiber type, fiber processing, textiles and papermaking, etc., can solve the problems of DMF pollution, etc., and achieve the effect of reducing environmental pollution and improving solvent pollution.

Active Publication Date: 2018-09-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a preparation method of collagen / PA superfine fiber nonwoven material, which solves the problem of DMF pollution caused by the traditional polyurethane impregnation process, and obtains superfine fiber with high moisture absorption and moisture permeability function by controlling the microstructure. Fine Fiber Reinforced Comfortable Synthetic Leather Composites

Method used

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  • Preparation method of collagen/PA ultrafine fibre non-woven material
  • Preparation method of collagen/PA ultrafine fibre non-woven material
  • Preparation method of collagen/PA ultrafine fibre non-woven material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A preparation method of collagen / PA superfine fiber nonwoven material, specifically implemented according to the following steps:

[0060] Step 1, using vinyl collagen solution to impregnate PA / LDPE nonwoven material;

[0061] Step 1 is specifically implemented according to the following steps:

[0062] Step 1.1, Pretreatment of PA / LDPE Nonwovens

[0063] Cut the PA / LDPE non-woven material into a number of PA / LDPE discs with a disc sampler with a diameter of 55cm, wash them ultrasonically in hot water at 40°C for 30 minutes, take them out and press them every 10 minutes, and press them at a pressure of 1.5Mpa. Rolled 3 times, washed to remove impurities, then dried naturally, weighed;

[0064] Step 1.2, impregnation of PA / LDPE nonwovens with vinyl collagen solution

[0065] Take a CMA solution of vinyl collagen with a degree of substitution of 13%, and then add an ultraviolet photoinitiator to it and mix evenly. The mass concentration of the ultraviolet photoinitiato...

Embodiment 2

[0074] Step 1, using vinyl collagen solution to impregnate PA / LDPE nonwoven material;

[0075] Step 1 is specifically implemented according to the following steps:

[0076] Step 1.1, Pretreatment of PA / LDPE Nonwovens

[0077] Cut the PA / LDPE non-woven material into a number of PA / LDPE discs with a disc sampler with a diameter of 55cm, wash them ultrasonically in hot water at 40°C for 30 minutes, take them out and press them every 10 minutes, and press them at a pressure of 1.5Mpa. Rolled 3 times, washed to remove impurities, then dried naturally, weighed;

[0078] Step 1.2, impregnation of PA / LDPE nonwovens with vinyl collagen solution

[0079] Take the CMA solution of vinyl collagen with a substitution degree of 50%, and then add an ultraviolet photoinitiator to it and mix evenly, and the mass concentration of the ultraviolet photoinitiator in the CMA solution is 0.0025%;

[0080] In step 1.2, the solid content of the CMA solution is 6.25%;

[0081] Step 1.3, put the PA / L...

Embodiment 3

[0088] Step 1, using vinyl collagen solution to impregnate PA / LDPE nonwoven material;

[0089] Step 1 is specifically implemented according to the following steps:

[0090] Step 1.1, Pretreatment of PA / LDPE Nonwovens

[0091] Cut the PA / LDPE non-woven material into a number of PA / LDPE discs with a disc sampler with a diameter of 55cm, wash them ultrasonically in hot water at 40°C for 30 minutes, take them out and press them every 10 minutes, and press them at a pressure of 1.5Mpa. Rolled 3 times, washed to remove impurities, then dried naturally, weighed;

[0092] Step 1.2, impregnation of PA / LDPE nonwovens with vinyl collagen solution

[0093] Take the CMA solution of vinyl collagen with a substitution degree of 83%, then add a UV photoinitiator to it and mix evenly, the mass concentration of the UV photoinitiator in the CMA solution is 0.0025%;

[0094] In step 1.2, the solid content of the CMA solution is 6.5%;

[0095] Step 1.3, put the PA / LDPE nonwoven material sample...

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Abstract

The invention discloses a preparation method of a collagen / PA ultrafine fibre non-woven material. The preparation method is specifically implemented according to the following steps: firstly, impregnating a PA / LDPE non-woven material by using a vinyl collagen solution; secondly, self-cross-linking vinyl collagen in the PA / LDPE non-woven material to form a film to obtain a CMA-PA / LDPE non-woven material; thirdly, withdrawing the CMA-PA / LDPE non-woven material in an amount decreasing manner to obtain the collagen / PA material. According to the method disclosed by the invention, the original polyurethane impregnating process with a large using amount of organic solvent and heavy pollution is replaced by a green process method, namely, a collagen impregnating film forming method; the phenomenonof a large amount of solvent pollution caused by a solvent type polyurethane impregnating process at present can be improved effectively, so that the environmental pollution is greatly lightened.

Description

technical field [0001] The invention belongs to the technical field of polymer materials and functional textile materials, and in particular relates to a method for preparing a collagen / PA superfine fiber nonwoven material. Background technique [0002] The base material of microfiber synthetic leather is a composite material composed of three-dimensional interwoven ultrafine fibers and polyurethane fillers with microporous structure. The four key steps of its manufacture include ultrafine fiber manufacturing, high-density three-dimensional mesh Nonwoven fabric manufacturing, open microporous structure polyurethane film manufacturing and surface layer manufacturing technology. Through this technology, microfiber synthetic leather can simulate natural leather in terms of appearance, function and sensibility. That is to use ultrafine fibers to simulate the structure of collagen fibrils, and use the three-dimensional non-woven structure of fibers to simulate the weaving form o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/15D06M101/34D06M101/20
CPCD06M15/15D06M2101/20D06M2101/34
Inventor 徐娜黄剑锋刘洪滔秦民飞王乐智郑永贵张丰杰王泽辉
Owner SHAANXI UNIV OF SCI & TECH