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Method for preparing denim fiber reinforced composite material by utilizing denim fabric

A composite material and fiber-reinforced technology, which is applied in fiber processing, recycling technology, and decomposition of fiber-containing substances, can solve the problems of low mechanical properties and uneven mechanical properties of reinforced composite materials, and achieve uniform mechanical properties and excellent entanglement strength. Strong, high interlayer mechanical properties

Pending Publication Date: 2018-11-16
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing denim fiber-reinforced composite materials by using denim, which solves the problems in the prior art that the mechanical properties of reinforced composite materials prepared directly through waste denim fibers are not uniform and have low mechanical properties, and at the same time improve Improve the utilization rate of waste denim clothes

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

[0036] A kind of method that utilizes denim to prepare denim fiber reinforced composite material, specifically implements according to the following steps:

[0037] Step 1. Remove the decorations on the waste denim, spread the denim flat and use a cloth opener to open it into fiber wadding;

[0038] Step 2. Feed the fiber wadding into the carding machine, remove impurities and mix the fiber wadding through the cylinder, doffer, work roll and stripping roller, and finally uniformly form a thin web;

[0039] Step 3, using a cross-folding lapper to make the thin net into a fiber film;

[0040] Step 4, to the fiber film with 5 thorns / cm 2 Denim fiber needle-punched felt with a thickness of 4mm and a cohesion force of 5N was obtained;

[0041] Step 5. Cutting the denim fiber needle-punched felt obtained in step 4 into several needle-punched felt blocks of the same size, and using a vacuum-assisted resin transfer molding process to composite and solidify the needle-punched felt bl...

Embodiment 2

[0045] A kind of method that utilizes denim to prepare denim fiber reinforced composite material, specifically implements according to the following steps:

[0046] Step 1. Remove the decorations on the waste denim, spread the denim flat and use a cloth opener to open it into fiber wadding;

[0047] Step 2. Feed the fiber wadding into the carding machine, remove impurities and mix the fiber wadding through the cylinder, doffer, work roll and stripping roller, and finally uniformly form a thin web;

[0048] Step 3, using a cross-folding lapper to make the thin net into a fiber film;

[0049] Step 4, to the fiber film with 1 stab / cm 2 Denim fiber needle-punched felt with a thickness of 3mm and a cohesion force of 13N was obtained;

[0050] Step 5. Cutting the denim fiber needle-punched felt obtained in step 4 into several needle-punched felt blocks of the same size, and using a vacuum-assisted resin transfer molding process to composite and solidify the needle-punched felt blo...

Embodiment 3

[0054] A kind of method that utilizes denim to prepare denim fiber reinforced composite material, specifically implements according to the following steps:

[0055] Step 1. Remove the decorations on the waste denim, spread the denim flat and use a cloth opener to open it into fiber wadding;

[0056] Step 2. Feed the fiber wadding into the carding machine, remove impurities and mix the fiber wadding through the cylinder, doffer, work roll and stripping roller, and finally uniformly form a thin web;

[0057] Step 3, using a cross-folding lapper to make the thin net into a fiber film;

[0058] Step 4, to the fiber film with 15 stabs / cm 2 Denim fiber needle-punched felt with a thickness of 1mm and a cohesion force of 7N was obtained;

[0059] Step 5. Cutting the denim fiber needle-punched felt obtained in step 4 into several needle-punched felt blocks of the same size, and using a vacuum-assisted resin transfer molding process to composite and solidify the needle-punched felt bl...

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 method for preparing a denim fiber reinforced composite material by utilizing denim fabric. The method specifically comprises the following steps: recycling and opening wastedenim wear; removing impurities, carding flocculent fiber to be of filamentary shape, and further carding to form a uniform thin net through a roller carding machine; forming a fiber thin film in certain weight according to a cross-lapped way of the thin net; carrying out repeated and uniform needle puncturing on the fiber thin film by adopting a non-woven needle puncturing technology, and forming a denim fiber needled felt; finally, carrying out composite curing, thus obtaining a waste denim fiber needled felt and a reinforced composite material thereof. A composite material prepared by themethod is uniform in mechanical performance and high in interlayer mechanical performance, and a new method is provided for preparation of a waste textile composite material; meanwhile, waste denim fabric is utilized as a raw material, waste of resources is reduced, and the environment pollution caused by landfilling and combustion can be avoided.

Description

technical field [0001] The invention belongs to the technical field of fiber-reinforced composite materials, and relates to a method for preparing denim fiber-reinforced composite materials from denim. Background technique [0002] At present, more than 40 million tons of waste textiles are produced in the world every year, of which about 20 million tons are produced in China every year. Moreover, with the improvement of people's living standards, the consumption of clothes is constantly increasing, and the corresponding amount of waste textiles is also continuously increasing. Among all waste textiles, cotton fiber waste textiles account for about 15%. Some of these cotton fibers are used to blend with other chemical fibers to make clothing, such as polyester-cotton blended products, and some are directly used to make pure cotton products. For example, almost everyone has at least one or two jeans, most of which are woven twill fabrics. material whose composition is almost...

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): B32B9/02B32B9/04B32B7/12B32B37/06B32B37/10B32B37/12D01G11/04D04H1/4274D04H1/46
CPCB32B5/022B32B5/26B32B7/12B32B37/06B32B37/10B32B37/1009B32B37/1284B32B2262/062B32B2437/00D01G11/04D04H1/4274D04H1/46Y02W30/66
Inventor 樊威董经经盛翠红窦皓杨雪孟雪于洋田荟霞王红红李龙
Owner XI'AN POLYTECHNIC UNIVERSITY
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