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Method for modifying ultrahigh molecular weight polyethylene fiber by plasma treatment

A polyethylene fiber, ultra-high molecular weight technology, applied in the direction of fiber type, fiber treatment, physical treatment, etc., can solve the problem of not mentioning coating UHMWPE fiber, etc., to achieve the optimization of molding process and overall comprehensive performance, and fast processing speed , the effect of simple process

Inactive Publication Date: 2009-09-16
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent does not use nano-materials to prepare sol technology, nor mentions the use of nano-silica sol technology to coat UHMWPE fibers, especially the surface modification of UHMWPE fibers coated with nano-silica sol and then plasma technology The above patents do not involve the method

Method used

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  • Method for modifying ultrahigh molecular weight polyethylene fiber by plasma treatment
  • Method for modifying ultrahigh molecular weight polyethylene fiber by plasma treatment
  • Method for modifying ultrahigh molecular weight polyethylene fiber by plasma treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Helium plasma treatment of nano-silica sol coated ultra-high molecular weight polyethylene fibers

[0041] Such as figure 1 As shown, the ultra-high molecular weight polyethylene fiber 1 to be treated is immersed in a percentage concentration of 0.05% nano-silica sol along the outer circle of the flower basket of the sol padding device 2, and the padding process is carried out, and then the ultra-high molecular weight polyethylene fiber is processed. Introduce into the drying device 3, dry at 60°C and collect the solvent, then the ultra-high molecular weight polyethylene fiber 1 is introduced into the plasma atmosphere area of ​​the plasma nozzle 4 for plasma surface modification treatment, the distance between the upper surface of the fiber bundle and the nozzle is 5MM, the distance between the lower surface of the fiber bundle and the nozzle<20MM, the power is 40 watts, and the processing time is 2 seconds. The processed ultra-high molecular weight polyethylene fiber ...

Embodiment 2

[0044] Oxygen plasma treatment of nano-silica sol coated ultra-high molecular weight polyethylene fibers

[0045] Such as figure 1 As shown, the ultra-high molecular weight polyethylene fiber 1 to be treated is immersed in a percentage concentration of 0.05% nano-silica sol along the outer circle of the flower basket of the sol padding device 2, and the padding process is carried out, and then the ultra-high molecular weight polyethylene fiber is processed. Introduce to drying device 3, dry at 110°C and collect the solvent. Then the ultra-high molecular weight polyethylene fiber 1 is introduced into the plasma atmosphere area of ​​the plasma nozzle 4 to carry out plasma surface modification treatment. The distance between the upper surface of the fiber bundle and the nozzle is 5MM, the distance between the lower surface of the fiber bundle and the nozzle<20MM, and the power is 40 watts. The time is 2 seconds, and the processed ultra-high molecular weight polyethylene fiber 1 ...

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Abstract

The invention relates to a method for modifying ultrahigh molecular weight polyethylene fiber by plasma treatment. The method comprises that: (1) a nanometer particle of silicon dioxide is prepared into an organic solvent or water solution of sol of which the mass percent is 0.01 to 15 percent, by an ultrasonic shock technique; or (2) a precursor solution of the organic-inorganic nanometer particle is subjected to hybridization reaction with the nanometer particle of silicon dioxide to prepare the nanometer silicon dioxide sol solution; (3) the sol solution is coated on the surface of the ultrahigh molecular weight polyethylene fiber by spraying or padding; and (4) the ultrahigh molecular weight polyethylene fiber is dried at a temperature of 10 to 150 DEG C, and the solvent is collected; and the ultrahigh molecular weight polyethylene fiber is introduced in a plasma atmosphere region by a plasma generator for plasma surface modification. The compound property between the treated ultrahigh molecular weight polyethylene fiber and the organic matrix materials is greatly improved; moreover, the method also has the advantages of simple process, good treatment effect, low cost, environmental protection and low energy consumption.

Description

technical field [0001] The invention belongs to the field of preparation of surface modification of ultra-high molecular weight polyethylene fibers, in particular to a method for modifying ultra-high molecular weight polyethylene fibers by plasma treatment. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber is a high-performance fiber that appeared after carbon fiber and aramid fiber. It is made of ultra-high molecular weight polyethylene, through high-pressure solid-state extrusion method, plasticized melt spinning method, surface crystal growth method, super-stretching or partial super-stretching method, gel spinning-hot stretching method, etc. It is a high-performance fiber with high strength and high modulus. Its relative molecular mass is 1 million to 6 million, its molecular shape is a linear extended chain structure, its orientation degree is close to 100%, its strength is equivalent to about 15 times that of high-quality steel, 2 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/79D06M11/00D06M13/00D06M15/00D06M10/00C08J5/06D06M101/20
Inventor 张迎晨吴红艳邱夷平
Owner DONGHUA UNIV
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