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Waterproof and moisture-permeable degradable fiber-based nonwoven composite material and preparation method thereof

A technology of composite materials and degradable fibers, which is applied in non-woven fabrics, textiles and papermaking, and can solve problems such as difficult to ink, easy to scatter ink, and difficult to pack

Active Publication Date: 2020-10-27
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention proposes a non-woven composite material with waterproof and moisture-permeable degradable fiber-based writing paper and its preparation method. Good performance, no waste and liquid discharge in the preparation process, replacing traditional papermaking and plastic film-based products that cause harm to the living environment on which people live, and solving the problem of traditional paper that is not easy to ink, easy to scatter ink, and strong Relatively low, less likely to be a problem for packaging supplies

Method used

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  • Waterproof and moisture-permeable degradable fiber-based nonwoven composite material and preparation method thereof
  • Waterproof and moisture-permeable degradable fiber-based nonwoven composite material and preparation method thereof

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Embodiment 1

[0022] The waterproof and moisture-permeable degradable fiber-based nonwoven composite material of this embodiment includes a coarse denier limestone filament layer and a polylactic acid fiber layer of ultrafine fibers prepared by a melt blown process, and the polylactic acid fiber layer of ultrafine fibers is pulverized coal Grey, polyethylene glycol modified polylactic acid and metallocene modified polypropylene meltblown microfiber material with an areal density of 222g / m 2 , the thickness is 0.28mm, the coarse denier limestone filament layer is a filament-based fiber material made of limestone and thermoplastic polymer through polymer melt extrusion molding process, and the fiber fineness is 1.5~6.6D.

[0023] The raw materials of the superfine fiber polylactic acid fiber layer include fly ash, polyethylene glycol, polylactic acid and metallocene-modified polypropylene, wherein the mass fraction of fly ash is 76%, and the polylactic acid accounts for The mass fraction is 1...

Embodiment 2

[0029] The raw material of the superfine fiber polylactic acid fiber layer of the present embodiment comprises fly ash, polyethylene glycol, polylactic acid and the polypropylene modified by metallocene, wherein the mass fraction that fly ash accounts for is 71%, polylactic acid accounts for The mass fraction of polyethylene glycol is 18%, the mass fraction of metallocene-modified polypropylene is 7%, and the mass fraction of polyethylene glycol is 4%.

[0030] The preparation method of the waterproof and moisture-permeable degradable fiber-based nonwoven composite material of this embodiment, the steps are as follows:

[0031] (1) Preparation of coarse denier limestone filament layer: flatten the coarse denier limestone filament layer;

[0032](2) Preparation and online compounding of ultrafine fiber polylactic acid fiber layer: the coarse denier limestone filament layer in step (1) is placed under the melt-blown spinning die head, and the temperature of the spinning die head...

Embodiment 3

[0035] The raw material of the superfine fiber polylactic acid fiber layer of the present embodiment comprises fly ash, polyethylene glycol, polylactic acid and polypropylene modified by metallocene, wherein the mass fraction of fly ash accounts for 67%, polylactic acid accounts for The mass fraction of polyethylene glycol is 21%, the mass fraction of metallocene-modified polypropylene is 8%, and the mass fraction of polyethylene glycol is 4%.

[0036] The preparation method of the waterproof and moisture-permeable degradable fiber-based nonwoven composite material of this embodiment, the steps are as follows:

[0037] (1) Preparation of coarse denier limestone filament layer: flatten the coarse denier limestone filament layer;

[0038] (2) Preparation and online compounding of ultrafine fiber polylactic acid fiber layer: the coarse denier limestone filament layer in step (1) is placed under the melt-blown spinning die head, and the temperature of the spinning die head is 235...

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Abstract

The invention discloses a waterproof moisture-permeable degradable fiber-based nonwoven composite and a preparation method thereof. The waterproof moisture-permeable degradable fiber-based nonwoven composite comprises a superfine fiber polylactic acid fiber layer prepared by melt blowing and a heavy-denier limestone filament layer; the superfine fiber polylactic acid fiber layer is made with flyash, polylactic acid modified via polyethylene glycol and polypropylene melt-blown superfine fiber material modified via a metallocene; the heavy-denier limestone filament layer is made of filament-based fiber material made by subjecting limestone and a thermoplastic high-molecular polymer to polymer melt extrusion molding. The waterproof moisture-permeable degradable fiber-based nonwoven compositefor writing paper comprises the superfine fiber polylactic acid fiber layer of multilayer writable structure and the heavy-denier limestone filament layer, has the advantages of degradability, good ink absorbability, high strength, excellent water and oil resistance, good dimensional stability, good convenience of industrial production and the like, and is particularly suitable for the fields, such as writing paper, industrial printing, and packaging.

Description

technical field [0001] The invention relates to the field of non-woven composite materials, and particularly refers to a waterproof and moisture-permeable degradable fiber-based non-woven composite material and a preparation method thereof. Background technique [0002] The existing ordinary paper needs to use green plant fibers in the preparation process, which destroys the ecological environment, and the discharge of three wastes has not been solved. The ink absorption of the produced paper is not strong enough, easy to disperse ink, and low in strength. In addition, express bags, packaging bags and other products with plastic film as the terminal are difficult to degrade, which will bring white pollution problems. Degradable materials have become an urgent problem to be solved. A non-woven composite material with waterproof and moisture-permeable degradable fiber-based writing paper proposed by the present invention does not need water, bleach, green plant fibers, etc. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H5/06
CPCD04H5/06
Inventor 张恒甄琪李霞殷高祥董玉佳王霞戴照新孙焕惟张一风刘雍刘让同章伟钱晓明
Owner ZHONGYUAN ENGINEERING COLLEGE
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