Ultrahigh-molecular weight polyethylene composite material and preparation method thereof

A technology of ultra-high molecular weight and composite materials, applied in the field of ultra-high molecular weight polyethylene composite materials and its preparation, can solve the problems of difficult processing and high melt viscosity of ultra-high molecular weight polyethylene, and achieve a wide range of applications, high surface hardness, The effect of preventing abrasion

Inactive Publication Date: 2015-04-29
GUANGDONG TAUGHNESS CONVEYOR BELTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an ultra-high molecular weight polyethylene composite material and a preparation method thereof, wherein the ultra-high molecular weight polyethylene composite material is obtained by adding nanoscale inorganic fillers , Lubricants are modified to solve the problem of extremely high viscosity of ultra-high molecular weight polyethylene melt and difficult processing, and greatly improve the rigidity of ultra-high molecular weight polyethylene composite materials, aiming to provide a super wear-resistant, rigid Strong, Extrusionable UHMWPE Composite

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Both the filler and the reinforcing fiber have been activated by the coupling agent:

[0047] Take 1% KH550 of the total mass of filler or reinforcing fiber, and dilute KH550 with absolute ethanol 10:1 (volume ratio). Put the weighed filler or reinforcing fiber into a high-speed mixer for stirring, add the KH550 / absolute ethanol mixed solution while stirring, and continue stirring for 5 minutes after the solution is completely poured in, discharge the filler or reinforcing fiber, and then put Dry in an oven with a set temperature of 80°C for 5 hours, take it out, grind it finely and place it in an airtight container for later use.

[0048] Take 100 parts of ultra-high molecular weight polyethylene, 1 part of lubricant stearic acid, and 1.5 parts of calcium stearate, put them into a high-speed mixer and stir at a high speed to 40 ° C, so that the lubricant is fully adsorbed on the surface of the ultra-high molecular weight polyethylene powder; Then add 20 parts of glass...

Embodiment 2

[0053] Take 2% KH550 of the total mass of filler or reinforcing fiber, and dilute KH550 with absolute ethanol 10:1 (volume ratio). Put the weighed filler or reinforcing fiber into a high-speed mixer for stirring, add the KH550 / absolute ethanol mixed solution while stirring, and continue stirring for 5 minutes after the solution is completely poured in, discharge the filler or reinforcing fiber, and then put Dry in an oven with a set temperature of 80°C for 5 hours, take it out, grind it finely and place it in an airtight container for later use.

[0054] Take 100 parts of ultra-high molecular weight polyethylene, 3 parts of lubricant stearic acid, and 3 parts of calcium stearate into a high-speed mixer and stir at high speed to 60°C, so that the lubricant is fully adsorbed on the surface of the ultra-high molecular weight polyethylene powder; Then add 30 parts of glass microspheres, 10 parts of basalt fiber, and 10 parts of nano-alumina that have been activated by the KH550 co...

Embodiment 3

[0060] Take 3% titanate coupling agent of the total mass of filler or reinforcing fiber, and dilute the titanate coupling agent with absolute ethanol 10:1 (volume ratio). Put the weighed filler or reinforcing fiber into a high-speed mixer for stirring, add the titanate coupling agent / absolute ethanol mixed solution while stirring, and continue stirring for 5 minutes after the solution is completely poured in, discharge the filler or supplement To strengthen the fiber, put it into an oven with a set temperature of 80°C to dry for 5 hours, take it out, grind it finely and place it in an airtight container for later use.

[0061] Take 100 parts of ultra-high molecular weight polyethylene, 4 parts of lubricant polyethylene wax, and 2 parts of zinc stearate, put them into a high-speed mixer and stir at high speed to 60°C, so that the lubricant is fully adsorbed on the surface of the ultra-high molecular weight polyethylene powder; Then add 25 parts of silicon carbide, 30 parts of c...

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Abstract

The invention discloses an ultrahigh-molecular weight polyethylene composite material and a preparation method thereof. The ultrahigh-molecular weight polyethylene composite material comprises the following component in parts by weight: 100 parts of ultrahigh-molecular weight polyethylene, 0.1-10 parts of a lubricating agent, 10-60 parts of a filling material, 5-40 parts of reinforcing fiber and 0.1-10 parts of nanometer inorganic filler. The ultrahigh-molecular weight polyethylene composite material overcomes the difficulty that the ultrahigh-molecular weight polyethylene is very high in melt viscosity and is difficult to prepare; the ultrahigh-molecular weight polyethylene composite material can be prepared into different products through extrusion moulding of an extruder; the modified ultrahigh-molecular weight polyethylene composite material not only has high strength, impact resistance, wear resistance, high rigidity, high surface hardness, chemical corrosion resistance and other performance, but also has good self lubrication and dimensional stability.

Description

technical field [0001] The invention relates to the field of polymer materials, and mainly relates to an ultra-high molecular weight polyethylene composite material and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) is polyethylene (PE) with a viscosity average molecular weight greater than 1.5 million. It is a self-lubricating polymer material. It has high mechanical strength and impact resistance, low friction coefficient and good durability. Known for its abrasiveness, its extremely high molecular weight and highly entangled segment structure endow it with excellent mechanical properties, impact resistance, wear resistance, self-lubrication, and chemical corrosion resistance. Moreover, UHMWPE has excellent low temperature resistance, and still has high impact strength at -40°C, and can even be used at -269°C. However, the existing ultra-high molecular weight polyethylene resin has defects such as low heat dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/06C08K9/06C08K7/20C08K7/10C08K7/06C08K3/36C08K3/22C08K3/34B29C47/92B29C48/92
CPCC08K13/06B29C48/92B29C2948/92704C08K3/22C08K3/36C08K5/09C08K5/098C08K7/10C08K7/20C08K9/06C08K2003/2227C08K2201/011C08K2201/014C08L23/06C08L2201/08C08L2205/16C08L2207/068C08K9/04C08K3/34C08K7/06
Inventor 林广成
Owner GUANGDONG TAUGHNESS CONVEYOR BELTING
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