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Method for producing modified ultrahigh molecular weight polyethylene fiber by using mutual radiation grafting technology

A technology of ultra-high molecular weight and polyethylene fiber, which is applied in the direction of fiber type, fiber treatment, textiles and papermaking, etc. It can solve the problems of failure to achieve practical goals and limited improvement of fiber bonding strength, and achieve obvious effects and excellent bonding performance. Significant, easy-to-operate effect

Inactive Publication Date: 2012-04-04
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can better maintain the original strength of UHMWPE fibers, the degree of improvement in fiber bonding strength is limited, and the practical goal has not been achieved.

Method used

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  • Method for producing modified ultrahigh molecular weight polyethylene fiber by using mutual radiation grafting technology
  • Method for producing modified ultrahigh molecular weight polyethylene fiber by using mutual radiation grafting technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Control the traction speed of ultra-high molecular weight polyethylene fiber to be 5m / min, pass through the grafting liquid tank, the grafting liquid in this grafting liquid tank is made of deionized water, acrylic acid, trichloroethylene, CuSO 4 composition. Based on deionized water, the concentration of acrylic acid is 6mol / L, the concentration of trichlorethylene is 1mol / L, CuSO 4 The concentration is 0.002mol / L. Using JJ-2 electrostatic accelerator, at room temperature, N 2 The ultra-high molecular weight polyethylene fibers impregnated with the above-mentioned grafting liquid were irradiated under the atmosphere, and the average dose rate was 25KGy / S. The irradiated fibers were ultrasonically washed with 1.5kW pure water at 30°C, and then dried in air at 38°C to obtain the ultra-high molecular weight polyethylene fibers.

Embodiment 2

[0027]Control the traction speed of ultra-high molecular weight polyethylene fiber to be 8m / min, pass through the grafting liquid tank, the grafting liquid in this grafting liquid tank is made of deionized water, methacrylic acid, dichloroethane, CuSO 4 composition. Based on deionized water, the concentration of methacrylic acid is 10mol / L, the concentration of dichloroethane is 2.5mol / L, CuSO 4 The concentration is 0.01mol / L. Using JJ-2 electrostatic accelerator, at room temperature, N 2 The ultra-high molecular weight polyethylene fibers impregnated with the above-mentioned grafting solution were irradiated under the atmosphere, and the average dose rate was 40KGy / S. The irradiated fibers were ultrasonically washed with 1.7kW pure water at 35°C, and then dried in air at 40°C to obtain the ultra-high molecular weight polyethylene fibers.

Embodiment 3

[0029] Control the traction speed of the ultra-high molecular weight polyethylene fiber to be 10m / min, pass through the grafting liquid tank, the grafting liquid in the grafting liquid tank is made of deionized water, methyl acrylate, trichloroethylene, CuSO 4 composition. Based on deionized water, the concentration of methyl acrylate is 15mol / L, the concentration of trichlorethylene is 4.2mol / L, CuSO 4 The concentration is 0.05mol / L. JJ-2 type electrostatic accelerator was used to irradiate the ultra-high molecular weight polyethylene fiber impregnated with the above grafting liquid at room temperature and Ar atmosphere, with an average dose rate of 60KGy / S. The irradiated fibers were ultrasonically washed with 2.0kW pure water at 40°C, and then dried under air conditions at 42°C to obtain the ultra-high molecular weight polyethylene fibers.

[0030] The mechanical properties and surface adhesive properties of UHMWPE fibers before and after irradiation graft modification ar...

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Abstract

The invention relates to a method for producing a modified ultrahigh molecular weight polyethylene fiber by using a mutual radiation grafting technology. Operations of a mutual radiation grafting and production operations of an ultrahigh molecular weight polyethylene fiber are connected to form a serialized production technology for preparing and modifying the ultrahigh molecular weight polyethylene fiber. The method comprises specific steps of: drawing the ultrahigh molecular weight polyethylene fiber into a grafting liquid bath by a tractor and dipping in the grafting liquid; carrying out electron beam mutual radiation grafting modification on the dipped ultrahigh molecular weight polyethylene fiber; washing the fiber with water to remove impurities after irradiation; and finally drying to obtain a product. Compared with a prior art, the method of the invention has advantages of convenient operation, industrialized continuous production and promotion of usage of the ultrahigh molecular weight polyethylene fiber in fiber reinforced composite.

Description

technical field [0001] The invention relates to a fiber surface modification technology, which aims to improve the surface bonding performance of ultra-high molecular weight polyethylene fibers, and belongs to the field of polymer surface modification. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber is a high-performance fiber successfully developed in the late 1970s and entered industrialization in the early 1980s. This fiber has a highly oriented extended chain structure and a density of only 0.97g / cm 3 , light weight, good chemical stability, strong chemical inertness, strong acid, strong alkali solution and organic solvent have no effect on its strength; it has good weather resistance, after 1500h of sunlight, the fiber strength retention rate is still as high as 80%, the UV resistance is very superior; the low temperature resistance is good, and the operating temperature can be as low as -150 °C; in addition, the wear resistance a...

Claims

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Application Information

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IPC IPC(8): D06M14/28D06M101/20
Inventor 孙非辛志荣董建东徐绍魁
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY