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Method for producing high-strength and high-modulus polyethylene fibers by using gel method taking tetrachloroethylene as second solvent

A polyethylene fiber and tetrachloroethylene technology, applied in the direction of chemical post-processing of synthetic polymer rayon filaments, can solve the problems of foreign matter in the gelatinous yarn, and it is difficult to separate the gelatinous yarn, and achieve the effect of good product quality.

Pending Publication Date: 2021-02-09
九州星际科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has resulted in foreign matter appearing on the jelly wire, and it is difficult to completely separate from the jelly wire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A method for producing high-strength and high-modulus polyethylene fibers by using tetrachlorethylene as a second solvent in a jelly method, comprising the steps of entering a fluid strand into a water bath and cooling it with water to form a jelly strand, and extracting the jelly strand in an extraction tank, White oil is used as the first solvent, and a tetrachloroethylene raw material storage tank for storing tetrachloroethylene is provided; tetrachloroethylene is used as the second solvent; a system is added to the water bath, extraction tank and tetrachloroethylene raw material storage tank. Stabilizer; the system stabilizer is one or a combination of ammonia, phenols, amines, alcohols, and nitriles; water treatment equipment is provided in the water bath composition device.

[0016] The water treatment equipment is one or a combination of air flotation devices, flocculation devices, and electrolysis devices.

[0017] The water treatment equipment is an air flotati...

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Abstract

The invention discloses a method for producing high-strength high-modulus polyethylene fibers by using a gel method using tetrachloroethylene as a second solvent. The method comprises the following steps: feeding fluid filaments into a water bath, cooling with water to obtain gel filaments, and extracting the gel filaments in an extraction tank by using white oil as a first solvent and arranging atetrachloroethylene raw material storage tank for storing the tetrachloroethylene; using the tetrachloroethylene as the second solvent; and adding a system stabilizer into the water bath, the extraction tank and the tetrachloroethylene raw material storage tank; wherein the system stabilizer is one or a combination of more of ammonia, phenols, amines, alcohols and nitriles; and water treatment equipment is arranged in a water bath forming device. According to the method, floccules can be effectively removed, and the product quality is good.

Description

technical field [0001] The invention relates to a method for producing high-strength and high-modulus polyethylene fibers by a jelly method. Background technique [0002] High-strength high-modulus polyethylene fiber is a new material developed in the 1950s and has excellent mechanical properties. It has very obvious advantages in sports clothing, navigation, marine engineering, labor protection, military industry, etc. Jelly spinning uses white oil as the first solvent to swell and untangle high molecular weight (more than 500,000 molecular weight) polyethylene particles, so that polyethylene particles can be entangled with each other after extrusion, and become a straight chain state through high-power stretching , forming a high-performance product. Before stretching, it is necessary to relatively fix the molecular chains, that is, to remove the white oil in the jelly silk as much as possible. The white oil can be removed by extrusion, extraction and other methods. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F11/06
CPCD01F11/06
Inventor 朱建军周新基李文建李珣珣朱德钧陈俊明
Owner 九州星际科技有限公司