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Extraction system of ultra high molecular weight polyethylene fiber with high strength and high modulus

An ultra-high molecular weight, polyethylene fiber technology, applied in the direction of single-component polyolefin rayon, fiber processing, textiles and papermaking, etc., can solve the problems of limited extraction capacity, high extraction cost, difficult to recycle, etc., to maintain stability performance, improve extraction efficiency and save cost

Active Publication Date: 2011-10-26
SHANDONG ICD HIGH PERFORMANCE FIBRES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extraction agents used generally have defects such as flammability, explosion, difficulty in recycling, high pollution, and limited extraction capacity, which will also bring unfavorable factors such as high extraction costs, environmental protection, and unsafety.

Method used

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  • Extraction system of ultra high molecular weight polyethylene fiber with high strength and high modulus
  • Extraction system of ultra high molecular weight polyethylene fiber with high strength and high modulus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Selection of raw materials: there are 4-8 spindles of ultra-high molecular weight polyethylene jelly yarn produced in the spinning section, 120-480f, with a solvent content of about 50-90%, and the extraction agent is halogenated alkanes.

[0031] Extraction process: the speed of entering the extraction tank is 8-12m / min, the speed of leaving the extraction tank is 18-20m / min, and turn on the small magnetic pumps in all tanks.

[0032] Silk quality inspection: The measured strength of high-strength and high-modulus ultra-high molecular weight polyethylene fibers is 20-23cN / dtex; the modulus is 600-800cN / dtex, the elongation at break is less than 10%, and the solvent content is less than 4%.

Embodiment 2

[0034] Selection of raw materials: there are 4-8 spindles of ultra-high molecular weight polyethylene jelly yarn produced in the spinning section, 120-480f, with a solvent content of about 50-90%, and the extraction agent is halogenated alkanes.

[0035] Extraction process: the speed of entering the extraction tank is 8-12m / min, the speed of exiting the extraction tank is 18-20m / min, and all small magnetic pumps in the tank are turned off.

[0036] Filament quality inspection: The measured strength of high-strength and high-modulus ultra-high molecular weight polyethylene fibers is 18-22cN / dtex; the modulus is 500-800cN / dtex, the elongation at break is less than 10%, and the solvent content is less than 5%.

[0037] By comparing the results of silk quality testing in Example 1 and Example 2, it can be seen that the extraction system using a magnetic pump to stir the extract has a high strength, high modulus, and ultra-high molecular weight polyethylene fiber in terms of strengt...

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Abstract

The invention discloses an extraction system of ultra high molecular weight polyethylene fiber with high strength and high modulus, comprising an extraction tank and a mold temperature control system. The mold temperature control system comprises a mold temperature controller and a programmable logic controller (PLC), which is used for keeping the extraction under a controllable constant process temperature; the extraction system also comprises an automatic feeding system which can complete to automatically supplying extracting agent to the extraction tank; the automatic feeding system comprises an automatic feeding valve and a physical indicator detector arranged in the extraction tank; and the automatic feeding valve and the physical indicator detector are both connected with the PLC. The technical scheme of the invention is that in the premise of ensuring the fiber feeding speed of gel fiber in the extraction tank, the extraction system can accurately realize temperature control ofliquid in the extraction tank, thereby improving the extraction efficiency; in addition, the stability of the concentration of the extraction liquid in the extraction system is maintained and the fiber outgoing speed is improved by arranging an automatic liquid supplying system.

Description

technical field [0001] The invention relates to the technical field of high-performance special fibers, in particular to a high-strength, high-modulus ultra-high molecular weight polyethylene fiber extraction system. Background technique [0002] At present, in the existing high-strength and high-modulus ultra-high molecular weight polyethylene fiber extraction technology, the feeding speed of the jelly fiber in the extraction tank is generally 5-50m / min. At this feeding speed, the jelly fiber stays in the extraction tank. The time is very limited, and the jelly fiber entering the extraction tank usually contains a large amount of solvent. Therefore, the existing extraction system often fails to complete the solvent and extraction because the extract on the surface of the jelly fiber cannot be updated in time. Effective instant replacement between agents, thus affecting the quality of silk. In addition, the extraction temperature, as an important factor affecting the extrac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D10/00D01D13/02D01F6/04
Inventor 李夑平
Owner SHANDONG ICD HIGH PERFORMANCE FIBRES CO LTD
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