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Chinese medicine slag filling non woven composite material and preparation thereof

A technology of composite materials and filling materials, applied in the direction of non-woven fabrics, textiles, papermaking, layered products, etc., can solve the problems of lack of large-scale promotion, limited effective nutrients, and high crude fiber content of traditional Chinese medicine slag. Requirements for life health and safety, high production efficiency, and the effect of low selectivity

Inactive Publication Date: 2008-07-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Compared with landfill, composting can turn waste into treasure, which is in line with the development trend of clean production. However, due to the high crude fiber content of traditional Chinese medicine residue and limited effective nutrients, this technology has not been widely promoted.

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The ethylene-vinyl alcohol copolymer is selected as the hot-melt powder, and its melting point range is 100-130°C. The specifications of the fiber web are: viscose fiber is selected as the raw material, and its average length is 38.68 mm. The short fiber is carded into a web, the fiber is loosened, and the fiber is carded on a cover carding machine. The number of times of carding is two times. Change the direction of the fiber web and obtain an isotropic fiber web according to the principle of cross-lapping. The surface density of the fiber web is 102.7kg / m 2 .

[0026] Evenly sprayed hot melt powder and traditional Chinese medicine slag powder, the addition amount of hot melt powder is 20%, and the addition amount of traditional Chinese medicine slag powder is 40%, to make a sandwich composite structure.

[0027] Put the obtained sandwich composite structure into a flat vulcanizing machine at a temperature of 135°C and a pressure of 11.5MPa, and heat and press for 1.5...

Embodiment 2

[0029] The ethylene-vinyl alcohol copolymer is selected as the hot-melt powder, and its melting point range is 100-130°C. The specifications of the fiber web are: waste polyester fiber is used as raw material, the average length is 38mm, and the surface density of the fiber web is 200kg / m by carding and cross-lapping with short fibers 2 .

[0030] The hot-melt powder and traditional Chinese medicine slag powder are evenly sprayed, the addition amount of hot-melt powder is 40%, and the addition amount of traditional Chinese medicine slag powder is 20%, and a sandwich composite structure is made.

[0031] Put the obtained sandwich composite structure into a flat vulcanizing machine at a temperature of 135° C., a pressure of 10 MPa, and a time of 2 minutes to preform the material. After the material is taken out and cooled, it is impregnated with a 30% epoxy resin solution, wherein the ratio of epoxy resin, curing agent and acetone is 100:80:75, and the impregnated material is p...

Embodiment 3

[0033] Ethylene-vinyl acetate copolymer is selected as the hot-melt powder, and its melting point range is 70-100°C. The selected area density is 100kg / m 2 The spun-bonded polypropylene nonwoven material is used as the base fabric, and 8% hot-melt powder and 35% traditional Chinese medicine slag powder are evenly sprinkled in the middle of the four-layer nonwoven fabric to make a multi-layer composite structure material.

[0034] Put the obtained composite structural material into a flat vulcanizing machine at a temperature of up to 90° C., and hold the pressure for 3 minutes at a pressure of 3 MPa to preform the material. After the material is taken out and cooled, it is impregnated with 25% epoxy resin solution, wherein the ratio of epoxy resin, curing agent and acetone is 100:80:75, and the impregnated material is placed in a flat vulcanizer at a temperature of 120°C. The pressure is 4 MPa, and the time is 50 minutes, and the non-woven composite material filled with tradit...

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Abstract

The invention relates to a traditional Chinese herb residue filling non-weaving composite material and a preparation method which comprise a non-weaving base cloth material, the filling material traditional Chinese herb residues, thermal melting powders and curing agent, and the preparation method comprises: (1) the powders made from 3 percent to 80 percent of the traditional Chinese herb residues and 2 percent to 40 percent of the thermal melting powders is dispersed evenly on the non-weaving base cloth material; (2) the mixture obtained by the step (1) is put on a plate vulcanization machine so as to perform, and the thermal melting powders are melted, binded and cured with the pressure of 1 to and put on the plate vulcanization machine for curing and molding. The invention has the advantages of simple technique, short process, high efficiency and low cost. Meanwhile, the material has the antibacterial effect.

Description

technical field [0001] The invention belongs to the field of nonwoven composite material and its preparation, and more particularly relates to a nonwoven composite material filled with traditional Chinese medicine dregs and a preparation method thereof. Background technique [0002] In recent years, as countries around the world pay more attention to traditional Chinese medicine and affirm the unique curative effect of traditional Chinese medicine, the research and development of new varieties of traditional Chinese medicine has become more and more popular, and the scale of modern pharmaceutical factories has become more and more popular with traditional Chinese medicine varieties, and the scale of planting Chinese medicinal materials has increased rapidly. However, a large amount of waste, Chinese medicine dregs, will be produced during the processing of Chinese herbal medicines. How to deal with these dregs is a very difficult problem for manufacturers and social environme...

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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IPC IPC(8): D06N7/06B32B5/28B32B5/30B32B7/04B29C70/00D04H1/74
Inventor 王洪靳向煜吴海波殷保璞黄建华郭莎莎韩丹
Owner DONGHUA UNIV
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