Treating agent for improving interface bonding strength of UHMWPE and treating method of treating agent

A technology of interface bonding strength and treatment method, applied in the field of ultra-high molecular weight polyethylene fiber interface pretreatment, can solve the problems of improving the material itself, complicated operation process, difficult resin wetting, etc., so as to improve the interface bonding strength and the treatment method is simple. , Improve the effect of anti-ballistic performance

Inactive Publication Date: 2017-02-01
BEIJING PROTECH NEW MATERIAL SCI CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high crystallization and high orientation of UHMWPE fiber itself, its surface energy is extremely low, it is not easy to be wetted by resin, and there is no active functional group on the surface, so it is difficult to make soft bulletproof clothing, stab-proof clothing, light bulletproof The matrix resin of bulletproof armor such as helmets forms chemical bonds, which reduces the interfacial bonding strength of its composite materials, which largely limits the application of UHMWPE fibers in composite materials. Therefore, in order to enhance the degree of interfacial bonding, it is generally necessary to Hig

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The interface modification treatment method for ultra-high molecular weight polyethylene fibers is as follows:

[0025] 1) The raw material composition of the treatment agent: 30kg of polar modified polyethylene, 100kg of toluene;

[0026] 2) Weigh the above-mentioned raw materials according to the predetermined mass, mix and stir the polar-modified polyethylene and toluene evenly, and prepare a polar-modified polyolefin solution with a certain mass concentration as a treatment agent;

[0027] 3) Immerse the ultra-high molecular weight polyethylene fiber to be modified in the treatment agent for more than 1 hour, take it out and dry it after immersion, and complete the entire modification treatment process.

Embodiment 2

[0029] The interface modification treatment method for ultra-high molecular weight polyethylene fibers is as follows:

[0030] 1) The raw material composition of the treatment agent: 50kg of partially polar modified polyolefin mixed solution, 200kg of benzene;

[0031] 2) Weigh the above-mentioned raw materials according to the predetermined mass, and mix and stir part of the polar-modified polyolefin mixed solution with benzene at a speed of 100rpm to make a polar-modified polyolefin solution with a certain mass concentration as a treatment agent;

[0032] 3) Immerse the ultra-high molecular weight polyethylene fiber to be modified in the treatment agent for 10 hours, take it out after immersion and dry it above 80°C, and complete the entire modification process of the ultra-high molecular weight polyethylene fiber. Fiber can be used to compound with matrix resin to make soft bulletproof clothing, stab-proof clothing, light bulletproof helmet and other bulletproof armor.

Embodiment 3

[0034] The interface modification treatment method for ultra-high molecular weight polyethylene fibers is as follows:

[0035] 1) The raw material composition of the treatment agent: 35kg of polar modified polyolefin mixed solution, 120kg of benzene and chloroform;

[0036] 2) The above-mentioned raw materials are weighed according to the predetermined mass, and the polar modified polyolefin mixed solution and benzene are mixed and stirred evenly at a rate of 100 rpm, and a polyolefin solution with a certain mass concentration is prepared as a treatment agent;

[0037] 3) Immerse the ultra-high molecular weight polyethylene fiber to be modified in the treatment agent for 10 hours, the temperature of the immersion is between 30-50°C, take it out after dipping, and dry it for 1-2 hours at a controlled temperature of 90-115°C The solvent on the surface of the fiber is volatilized, that is, the entire modification process of the ultra-high molecular weight polyethylene fiber is co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Areal densityaaaaaaaaaa
Login to view more

Abstract

The invention provides an interface treating agent for ultra high molecular weight polyethylene. The treating agent is mainly prepared from, by mass, 30-50 parts of polyolefin and 100-200 parts of inert solvent. A treating method comprises the following steps that polyolefin is dissolved into the inert solvent to obtain a treating agent, ultra high molecular weight polyethylene fibers are steeped in the treating agent for 1-10 h and taken out to be dried, and then the interface treating agent is obtained. According to the interface treating agent, a tough tunica vaginalis structure can be formed on the surfaces of the fibers to wrap the fibers, so that the fibers and matrix resin are bonded together, and the interface bonding strength of the manufactured composite material is improved. When a bulletproof chip made of the composite material subjected to interface treating is subjected to projectile impact, propagation of impact waves is promoted, the fiber strength is exerted at maximum efficiency, and therefore the bulletproof property of the bulletproof chip is practically improved.

Description

technical field [0001] The invention relates to the field of ultra-high molecular weight polyethylene fiber interface pretreatment, in particular to a treatment agent and a treatment method for improving the interface bonding strength of ultra-high molecular weight polyethylene fibers. Background technique [0002] In addition to the characteristics of high strength and high modulus, ultra-high molecular weight polyethylene fiber (UHMWPE) also has good chemical corrosion resistance, high specific energy absorption, high electromagnetic wave transmittance, low friction coefficient, excellent impact resistance and cutting resistance. It has the characteristics of non-absorbent and good biocompatibility, and it is the fiber with the smallest relative density among all high-strength and high-modulus fibers. Therefore, UHMWPE fiber is an excellent material for making soft bulletproof clothing, stab-proof clothing, lightweight bulletproof helmets and other bulletproof armor. Howe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D06M15/227D06M101/20
CPCD06M15/227D06M2101/20
Inventor 周庆
Owner BEIJING PROTECH NEW MATERIAL SCI CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap