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Basalt fiber filled ultrahigh molecular weight polyethylene composite material and preparation method thereof

An ultra-high molecular weight, basalt fiber technology is applied in the field of basalt fiber-filled ultra-high molecular weight polyethylene composite materials and their preparation, which can solve the problems of poor fatigue wear resistance and adhesive wear resistance, low surface hardness, and poor creep resistance. , to achieve the effect of good anti-fatigue wear and anti-adhesive wear, improved creep resistance and improved wear resistance

Inactive Publication Date: 2011-09-14
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a basalt fiber filled ultra-high molecular weight polyethylene composite material and its preparation method, which can solve the problem of poor fatigue resistance and adhesive wear resistance, low surface hardness, low strength and creep resistance of existing ultra-high molecular weight polyethylene. The problem of poor variability

Method used

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  • Basalt fiber filled ultrahigh molecular weight polyethylene composite material and preparation method thereof
  • Basalt fiber filled ultrahigh molecular weight polyethylene composite material and preparation method thereof
  • Basalt fiber filled ultrahigh molecular weight polyethylene composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0024] Example 1: The composition of the composite material is 95 grams of ultra-high molecular weight polyethylene, 5 grams of basalt fiber, and 0 grams of coupling agent.

[0025] Based on the above, the viscosity-average molecular mass of the ultra-high molecular weight polyethylene matrix is ​​9 million.

[0026] A method for preparing a basalt fiber-filled ultra-high molecular weight polyethylene composite material, the method comprising the following steps: (1) Mixing: Put basalt fiber and ultra-high molecular weight polyethylene into a mixer for full mixing to form a uniform (2) Hot press molding: put the above-mentioned mixture into the mold of the desired finished shape, keep it warm at 180°C-220°C for 1-2 hours, and then press it under a pressure of 10-30MPa for 20-60 Minutes, and finally cooled to room temperature, the basalt fiber-filled UHMWPE composite without coupling agent can be prepared.

[0027] The single diameter of the basalt fiber is 5-50 microns; the l...

Embodiment 2

[0028] Embodiment 2: the difference between this embodiment and embodiment 1 is:

[0029] The composition of the composite material is 90 grams of ultra-high molecular weight polyethylene, 10 grams of basalt fiber, and 1.5 grams of silane coupling agent.

[0030] Based on the above, the viscosity-average molecular weight of the ultra-high molecular weight polyethylene matrix is ​​8 million.

[0031] Based on the above, in the preparation method, the basalt fiber, the ultra-high molecular weight polyethylene and the coupling agent are put into a mixer and fully mixed to form a uniform mixture.

Embodiment 3

[0032] Embodiment 3: the difference between this embodiment and embodiment 2 is:

[0033] The composition of the composite material is 85 grams of ultra-high molecular weight polyethylene, 15 grams of basalt fiber, 1 gram of silane coupling agent, and 1 gram of aluminate coupling agent.

[0034] Based on the above, the viscosity-average molecular weight of the ultra-high molecular weight polyethylene matrix is ​​6 million.

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Abstract

The invention discloses a basalt fiber filled ultrahigh molecular weight polyethylene composite material and a preparation method thereof, and belongs to a polymer composite material and a preparation method thereof. The material consists of the following components in percentage by mass: 65 to 95 percent of ultrahigh molecular weight polyethylene, 5 to 35 percent of basalt fibers and 0 to 2 percent of coupling agent. The preparation method comprises the following steps of: mixing the ultrahigh molecular weight polyethylene, the basalt fibers and the coupling agent to form a uniform mixture; and performing hot press molding, namely preserving the heat for 1 to 2 hours at the temperature of between 180 and 220 DEG C, pressing the mixture for 20 to 60 minutes under the pressure of 10 to 30MPa, and finally cooling the pressured mixture to room temperature to prepare the basalt fiber filled ultrahigh molecular weight polyethylene composite material. The modified material has good abrasionresistance and self-lubricating performance and high compressive strength, hardness and creep deformation resistance.

Description

technical field [0001] The invention relates to a polymer composite material and a preparation method thereof, in particular to a basalt fiber-filled ultra-high molecular weight polyethylene composite material and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) has the same molecular structure as ordinary polyethylene. It is a thermoplastic engineering plastic with a viscosity-average molecular weight of more than 1.5 million and a linear structure. It has excellent comprehensive properties unmatched by other engineering plastics. Performance: wear resistance, its wear resistance ranks the crown of plastics; impact resistance, the highest impact resistance strength among existing plastics; good self-lubricating performance, low friction coefficient, its dynamic friction coefficient is 0.1-0.22, can be compared with Poly Compared with PTFE, it is an ideal lubricating material; chemical corrosion resistance; low tem...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K7/10B29C51/46
Inventor 刘洪涛曹守范
Owner CHINA UNIV OF MINING & TECH
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