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Method for using mobility and bipolarity functional group additive in preparation of modified ultra-high molecular weight polyethylene fibers

An ultra-high molecular weight, polyethylene fiber technology, applied in the direction of single-component polyolefin rayon, fiber chemical characteristics, rayon manufacturing, etc., can solve cumbersome processes, dim prospects for industrialization, and difficulty in mastering the best process conditions, etc. question

Inactive Publication Date: 2013-07-24
金云良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of this method is cumbersome, and the best process conditions are difficult to grasp, and the industrialization prospect is slim.

Method used

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  • Method for using mobility and bipolarity functional group additive in preparation of modified ultra-high molecular weight polyethylene fibers
  • Method for using mobility and bipolarity functional group additive in preparation of modified ultra-high molecular weight polyethylene fibers

Examples

Experimental program
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Effect test

Embodiment 1

[0044] 9% ultra-high molecular weight polyethylene with a weight-average molecular weight of 3 million, 90% white oil, and an auxiliary agent are swollen and dissolved to prepare an ultra-high molecular weight polyethylene solution, and the migratory bipolar tube energy group additive dimerized oleic acid amide is 0.3% , Xylene is prepared as an extraction solvent, and the prepared ultra-high molecular weight polyethylene solution is metered and then subjected to gel spinning, extraction, evaporation, ultra-heated stretching, and standing to obtain a modified ultra-high molecular weight polyethylene with a tensile strength of 35g / d Polyethylene fibers.

Embodiment 2

[0046] 15% of ultra-high molecular weight polyethylene with a weight average molecular weight of 3 million, 84% of decahydronaphthalene, 0.2% of dimerized oleic acid amide, and auxiliary agents are prepared into an ultra-high molecular weight polyethylene solution by swelling and dissolving, and the prepared ultra-high molecular weight polyethylene After the solution is metered, the modified ultra-high molecular weight polyethylene fiber with a tensile strength of 37 g / d is prepared by gel spinning, evaporation, superheated stretching, and standing still.

Embodiment 3

[0048] The weight-average molecular weight is 3 million ultra-high molecular weight polyethylene 13%, diethylbenzene 86%, dimerized oleic acid 0.3%, auxiliary agent is prepared into ultra-high molecular weight polyethylene solution through swelling and dissolving, and the prepared ultra-high molecular weight polyethylene solution After metering, the modified ultra-high molecular weight polyethylene fiber with a tensile strength of 42 g / d was obtained through gel spinning, evaporation, superheated stretching, and standing still.

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Abstract

The invention provides a method for using a mobility and bipolarity functional group additive in preparation of modified ultra-high molecular weight polyethylene fibers. The method is characterized in that the mobility and bipolarity functional group additive is added to an ultra-high molecular weight polyethylene solution and an extracting solvent, wherein the structural formula of the mobility and bipolarity functional group additive is R1-CnHm-R2, wherein n ranges from 12 to 72; and -R1 and -R2 are carboxyl, acylamino, acyl halogeno, carboxylic valent metallic salt group, hydroxyl, amido, isocyanate group, halogeno, sulfydryl, sulfinyl group, sulfoacid valent metallic salt group, orthophosphorous acid group and phosphorous acid valent metallic salt group. Two bipolarity functional groups in a mobility and bipolarity functional group additive micromolecule mobilize to the surfaces of fibers, thus the surfaces of the ultra-high molecular weight polyethylene fibers have lots of functional groups with polarity and chemical activity, and the capacity of easily compounding of the ultra-high molecular weight polyethylene fibers can be improved conveniently accordingly.

Description

technical field [0001] The invention relates to a preparation method of modified ultra-high molecular weight polyethylene fiber. Background technique [0002] UHMWPE fiber is the third-generation high-performance fiber after carbon fiber and aramid fiber, and has mechanical properties unmatched by other high-performance fibers. Its specific strength and specific modulus are the highest among all chemical fibers. In addition, it also has excellent chemical resistance, weather resistance, high energy absorption, impact resistance, low temperature resistance and other excellent properties. However, due to the non-polarity and extremely low surface energy of the conventionally prepared UHMWPE fiber, the bonding strength between the matrix resin and the UHMWPE fiber is very low, and it is difficult to combine with carbon fiber and aramid fiber in the field of composite materials. compared to. [0003] CN 1537988A discloses a continuous preparation method of ultra-high molecular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10D01F11/06
Inventor 金云良
Owner 金云良