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Production process of high-strength fibers

A high-strength fiber and production process technology, applied in the field of high-strength fibers, can solve the problems of high mechanical strength of ultra-high molecular weight polyethylene fibers, poor processing performance of ultra-high molecular weight polyethylene, and high production costs, so as to achieve easy promotion and use, Improved processability and high tensile breaking strength

Inactive Publication Date: 2021-01-08
滁州兴邦聚合彩纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the UHMWPE fiber produced by the gel spinning method has high mechanical strength; on the other hand, due to the poor processability of UHMWPE, the concentration of UHMWPE in the gel prepared by this method is generally limited. 2-5wt%, so its production efficiency is low and production cost is high, so the application of ultra-high molecular weight polyethylene fiber is mainly concentrated in the fields of national defense, military industry and aerospace

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In embodiment 1, a kind of production technology of high-strength fiber comprises the following steps:

[0024] S1. Attapulgite modification: use dilute acid to soak the attapulgite for 12 hours, after that, wash it with deionized water, then soak the attapulgite with sodium hydroxide solution for 1 hour, and then wash it with deionized water again , and finally use dilute acid to soak the attapulgite for 0.5h, after that, wash it with deionized water and dry it;

[0025] S2. Preparation of attapulgite dispersion: put the modified attapulgite, coupling agent, and nonionic surfactant into the white oil medium, and emulsify with a powerful emulsifier;

[0026] S3. Preparation of ultra-high molecular weight polyethylene suspension: put the ultra-high molecular weight polyethylene raw material and solvent white oil into a mixing kettle and stir to form a uniform suspension;

[0027] S4. Mixing of raw materials: Add the prepared attapulgite dispersion into the ultra-high mo...

Embodiment 2

[0037] In embodiment 2, a kind of production technology of high-strength fiber comprises the following steps:

[0038] S1. Attapulgite modification: use dilute acid to soak the attapulgite for 24 hours. After that, wash it with deionized water, then soak the attapulgite with sodium hydroxide solution for 2 hours. After that, wash it with deionized water again , and finally use dilute acid to soak the attapulgite for 1 hour. After completion, wash it with deionized water and dry it;

[0039] S2. Preparation of attapulgite dispersion: put the modified attapulgite, coupling agent, and nonionic surfactant into the white oil medium, and emulsify with a powerful emulsifier;

[0040] S3. Preparation of ultra-high molecular weight polyethylene suspension: put the ultra-high molecular weight polyethylene raw material and solvent white oil into a mixing kettle and stir to form a uniform suspension;

[0041] S4. Mixing of raw materials: Add the prepared attapulgite dispersion into the u...

Embodiment 3

[0050] In embodiment 3, a kind of production technology of high-strength fiber comprises the following steps:

[0051] S1. Attapulgite modification: use dilute acid to soak the attapulgite for 18 hours, after that, wash it with deionized water, then soak the attapulgite with sodium hydroxide solution for 1.5 hours, and then wash it with deionized water again Clean, and finally use dilute acid to soak the attapulgite for 0.5h, after that, wash with deionized water and dry;

[0052] S2. Preparation of attapulgite dispersion: put the modified attapulgite, coupling agent, and nonionic surfactant into the white oil medium, and emulsify with a powerful emulsifier;

[0053] S3. Preparation of ultra-high molecular weight polyethylene suspension: put the ultra-high molecular weight polyethylene raw material and solvent white oil into a mixing kettle and stir to form a uniform suspension;

[0054] S4. Mixing of raw materials: Add the prepared attapulgite dispersion into the ultra-high ...

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Abstract

The invention relates to the technical field of high-strength fibers, in particular to a production process of the high-strength fibers. The production process of the high-strength fibers comprises the following steps of S1, modifying an attapulgite; S2, preparing an attapulgite dispersion liquid; S3, preparing an ultra-high molecular weight polyethylene suspension; S4, mixing the raw materials; and S5, extrusion molding. According to the production process of the high-strength fibers, through the rod-shaped structure of the attapulgite, the production cost can be effectively reduced while theprocessability of the ultra-high molecular weight polyethylene fibers is improved, the tensile fracture strength of a final product is high, and the product is convenient to popularize and use.

Description

technical field [0001] The invention relates to the technical field of high-strength fibers, in particular to a production process of high-strength fibers. Background technique [0002] At present, the synthetic fiber market mainly includes two types of products: conventional fibers and high-performance fibers. Conventional fibers, such as polyester, nylon, polypropylene and acrylic fibers, have relatively poor mechanical properties, and their tensile breaking strength is generally less than 10cN / dtex. High-performance fibers mainly include ultra-high molecular weight polyethylene fibers, aramid fibers and carbon fibers, and their mechanical properties are far superior to conventional fibers. Among them, ultra-high molecular weight polyethylene fibers have the highest specific strength due to their low density , such as under the same quality, the strength of ultra-high molecular weight polyethylene fiber is 15 times that of steel wire rope, and 40% higher than that of aram...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10
CPCD01F6/46D01F1/10
Inventor 徐建军胡庆文奚永新陈国平
Owner 滁州兴邦聚合彩纤有限公司
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