Degradable hybrid fiber breathable felt as well as preparation method and drying method thereof

A technology of hybrid fiber and air felt, applied in the direction of liquid/gas/steam removal, vibration treatment, non-woven fabrics, etc. It can solve the problems of softening and deformation of synthetic fibers, waste plastics polluting the environment, and difficulty in recycling air felt to achieve excellent elasticity. , excellent air permeability, good biodegradability effect
CN112981708AActive Publication Date: 2021-06-18宁波霓科新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
宁波霓科新材料有限公司
Publication Date
2021-06-18

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Abstract

The invention discloses a degradable hybrid fiber breathable felt as well as a preparation method and drying method thereof. The preparation method comprises the following steps of uniformly mixing polylactic acid and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), and carrying out melt spinning processing to obtain degradable polyester fibers; and sequentially carrying out opening, carding, fiber web laying, needling and post-finishing treatment on natural plant fibers and the degradable polyester fibers to prepare the degradable hybrid fiber breathable felt. The degradable hybrid fiber breathable felt provided by the invention has relatively excellent biodegradability, air permeability, mechanical properties, high temperature and high pressure resistance and the like, and can be repeatedly used; the preparation process is simple and easy to implement and is compatible with an existing preparation process of a composite breathable felt; the degradable hybrid fiber breathable felt is green and cheap in raw materials, low in cost, free of waste gas and wastewater discharge, safe and environment-friendly, and meets the requirement of large-scale production; and in addition, the drying method is simple, the breathable felt is easy to regenerate, and the initial performance of the breathable felt is basically kept.
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Description

technical field

[0001] The invention relates to an air felt, in particular to a degradable hybrid fiber air felt and a preparation method thereof, belonging to the technical field of composite molding auxiliary materials. Background technique

[0002] Composite autoclave molding technology has been widely used in the manufacture of high-performance advanced composite structural parts such as aerospace and new energy vehicles due to its special molding process. It can ensure that the moisture in the composite material curing process And the full discharge of small molecule gas. Composite materials manufactured by autoclave molding technology have the advantages of excellent mechanical properties, good heat resistance, uniform resin content, compact internal structure and excellent internal quality. Air felt is used as a channel to discharge small molecule gas during curing, and its air permeability under high temperature and high pressure conditions will seriously affect the...

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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