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Method for drawing ultra-high molecular weight polyethylene fiber

A technology for ultra-high molecular weight, polyethylene fibers, used in the field of fiber drafting

Inactive Publication Date: 2011-01-26
杨珍芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this is not conducive to controlling the draw ratio, resulting in an uncontrollable process, and there is also the problem of low drawing efficiency

Method used

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  • Method for drawing ultra-high molecular weight polyethylene fiber
  • Method for drawing ultra-high molecular weight polyethylene fiber
  • Method for drawing ultra-high molecular weight polyethylene fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] use figure 1 In the drafting device shown, the extracted ultra-high molecular weight polyethylene precursor is fed into the drying device 105 for drying at 55°C, and then fed into the first hot shaft 106, the first drafting machine 101, the second The hot tunnel 107 and the second drafting machine 102 perform two-stage drafting to obtain ultra-high molecular weight polyethylene fibers. The temperature of the first hot shaft is 100°C and the length is 8.2 meters; the temperature of the second hot shaft is 125°C and the length is 11.8 meters. The first drafting machine applied a draft of 5.5 times to the precursor, and the second drafting machine applied a draft of 4.8 times to the precursor.

[0065] The fibers were sampled for mechanical property testing, ten samples were taken each time, the results were averaged, and the obtained and calculated results were listed in Table 2.

[0066] Examples 2 to 7 were stretched in two stages using the same device as in Example ...

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PUM

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Abstract

The invention discloses a method for drawing ultra-high molecular weight polyethylene fiber, which comprises the steps of: orderly feeding ultra-high molecular weight polyethylene protofilaments (110) to be drawn into a first drawing machine (101) and a second drawing machine (102), wherein the first drawing machine imposes the drawing with the drawing ratio Q1 of between 1 and 60 times on the protofilaments, the second drawing machine imposes the imposes the drawing with the drawing ratio Q2 of between 1 and 60 times on the protofilaments to obtain the ultra-high molecular weight polyethylene fiber, and the first drawing machine and the second drawing machine are loaded by a driving device (103) through a transmission shaft (104). The method prepares the polyethylene fiber by performing two stages of continuous drawing on the ultra-high molecular weight polyethylene protofilaments; and the method uses the transmission shaft to synchronously transfer the load to the two drawing machines through the same driving device, so when the two drawing machines draw the fiber, the rotation ratio of drawing rollers is fixed and the fixed drawing ratio can be maintained. Therefore, the controlling drawing technology and the drawing efficiency are improved.

Description

technical field [0001] The invention relates to a fiber drawing method, in particular to an ultra-high molecular weight polyethylene fiber (UHMWPE) drawing method. Background technique [0002] Ultra-high molecular weight polyethylene fiber is also called high-strength, high-modulus polyethylene (HSHMPE) fiber or extended-chain polyethylene (ECPE) fiber, which refers to a relative molecular mass of (1~7)×10 6 Polyethylene, an ultra-high molecular weight polyethylene fiber made by spinning-super-stretching. It is the third generation of high-performance fiber after carbon fiber and aramid fiber. [0003] Compared with other fiber-reinforced composite materials, ultra-high molecular weight polyethylene fiber-reinforced composite materials have the advantages of light weight, impact resistance, and high dielectric properties, and play a pivotal role in modern warfare, aerospace, sea defense, weaponry and other fields . At the same time, the fiber also has broad application p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D10/00D01D10/06D01D11/00D02J1/22
Inventor 周成程
Owner 杨珍芬