Preparation method of novel multifunctional silk filtering material

A filter material and multifunctional technology, which is applied in the field of preparation of new multifunctional silk filter materials, can solve the problems of poor filter material functionality and functional dependence on silk, etc., to achieve improved cohesion, high adsorption and air permeability, The effect of improving functionality and durability

Inactive Publication Date: 2015-05-13
重庆绿草缘皮革制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the fiber filter materials prepared by using silk fiber as raw material are directly processed by silk fiber to prepare filter materials, and its functionality depends on the characteristics of silk itself, so the functionality of filter materials is not good.

Method used

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  • Preparation method of novel multifunctional silk filtering material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The waste silk below 6 cm is degummed with 0.08 g / L sodium carbonate solution after removing impurities, washed and dried to obtain degummed silk bundles.

[0027] Soak the degummed silk bundles in a mixed solution of titanium dioxide sol and silk protein at a bath ratio of 1:40 for 30 minutes, wherein the mass fraction of silk protein is 15%, and the mass fraction of titanium dioxide sol is 8%. Then the silk bundle is taken out, soaked in a gelling agent with a molar ratio of 1:5 of carboxylic acid and polyethylene glycol, the amount of the gelling agent is 1 / 50 of the volume of the mixed solution of titanium dioxide sol and silk protein, After the fibroin is gelled, it is taken out to obtain a gel-treated silk bundle.

[0028] Remove the excess gel on the surface of the gel-treated silk bundle, pressurize it with a heating roller, heat and solidify at 30°C, and after spunlace treatment with a density of 16 strands / cm and a pore diameter of 0.15mm, dry it at 70°C to ob...

Embodiment 2

[0030] The waste silk below 6 cm is degummed with 0.08 g / L sodium carbonate solution after removing impurities, washed and dried to obtain degummed silk bundles.

[0031] Soak the degummed silk in a mixed solution of titanium dioxide sol and silk protein at a bath ratio of 1:40 for 60 minutes, wherein the mass fraction of silk protein is 10%, and the mass fraction of titanium dioxide sol is 5%. Then the silk bundle is taken out and soaked in a gelling agent with a molar ratio of carboxylic acid and polyethylene glycol of 1:5. The amount of the gelling agent is 1 / 50 of the volume of the mixed solution. After the silk protein gels, Take out to obtain gel-treated silk bundles.

[0032] Remove the excess gel on the surface of the gel-treated silk, pressurize it with a heating roller, heat and solidify at 50°C, and after spunlace treatment with a density of 16 strands / cm and a pore diameter of 0.15mm, dry it at 80°C to obtain a thickness of 3cm, a new multifunctional silk filter m...

Embodiment 3

[0034] The waste silk below 6 cm is degummed with 0.08 g / L sodium carbonate solution after removing impurities, washed and dried to obtain degummed silk bundles.

[0035] Soak the degummed silk in a mixed solution of titanium dioxide sol and silk protein at a bath ratio of 1:40 for 40 minutes, wherein the mass fraction of silk protein is 12%, and the mass fraction of titanium dioxide sol is 6%. Then the silk bundle is taken out and soaked in a gelling agent with a molar ratio of carboxylic acid and polyethylene glycol of 1:5. The amount of the gelling agent is 1 / 50 of the volume of the mixed solution. After the silk protein gels, Take it out to get gel-treated silk.

[0036] Remove the excess gel on the surface of the gel-treated silk bundle, pressurize it with a heating roller, heat and solidify at 40°C, and after spunlace treatment with a density of 16 strands / cm and a pore size of 0.15mm, dry it at 75°C to obtain a thickness It is a new multi-functional silk filter materia...

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Abstract

The invention discloses a preparation method of a novel multifunctional silk filtering material. The method comprises the following steps: after silk is degummed, dipping the silk into a mixed solution of titanium dioxide sol and silk protein, soaking the silk in a gel promoter, taking out the silk, heating for curing the silk, and carrying out spun-laced drying on the silk, so that the novel multifunctional silk filtering material is obtained. The preparation method is simple, and combines a gel technology with a spun-laced nonwoven technology, and therefore, the method is suitable for mass production. The novel multifunctional silk filtering material prepared by using the method has high adsorbability and air permeability, and is antibacterial, bacteriostatic and durable.

Description

Technical field: [0001] The invention belongs to the technical field of silk products, in particular to a preparation method of a novel multifunctional silk filter material. Background technique: [0002] At present, micro-nano particle dust has become the focus of urban air pollution prevention and control. At present, high-efficiency dust removal technologies include bag dust removal technology and electrostatic dust removal technology, but electrostatic dust removal technology is difficult to meet pollutant discharge standards. Most of the filter materials used in bag type dustproof are made of non-woven fabrics, also known as fiber filter materials. Fiber filter material includes non-woven filter material and woven filter material. Non-woven filter material has a three-dimensional structure and has a gradient density. Woven filter material is limited by structural parameters. Therefore, non-woven filter material has high filtration efficiency, large dust holding capacity...

Claims

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Application Information

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IPC IPC(8): D06M11/46D06M15/15D06M11/76B01D39/16D06M101/10
Inventor 陈永林
Owner 重庆绿草缘皮革制品有限公司
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