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C60 fullerene modified abrasion-resistant polyethylene composite material and preparation method thereof

A composite material and fullerene technology, which is applied in the field of C60 fullerene modified wear-resistant polyethylene composite material and its preparation, can solve the problems of poor fluidity, poor bending strength and creep performance, poor abrasive wear resistance, etc. problems, to achieve the effect of improving dispersibility and product performance, increasing tensile yield strength, and excellent lubricating properties

Inactive Publication Date: 2017-08-01
YANGZHOU POLYTECHNIC INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional pipes, HDPE pipe system has the following series of advantages: reliable connection, good low temperature impact resistance, good stress crack resistance, good chemical corrosion resistance, aging resistance, long service life, etc. However, for mines, petroleum, In metallurgy, dredging engineering and other occasions involving the transportation of slurry, coke powder, mineral powder, ore pulp, etc., the wear resistance of HDPE is insufficient, and ultra-high-density polyethylene (UHMWPE) is required
However, during the research process, it was found that although UHMWPE has some excellent properties that other engineering plastics cannot achieve, it has some obvious shortcomings, such as its extremely low melting index (close to zero) and high melting point (190-210°C). , high viscosity, poor fluidity and extremely difficult to process and shape. In addition, compared with other engineering plastics, it has the disadvantages of low surface hardness and heat distortion temperature, poor bending strength and creep performance, poor abrasive wear resistance, and low strength. , affecting its use effect and application range

Method used

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  • C60 fullerene modified abrasion-resistant polyethylene composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1g of C60 fullerene was mixed with 4g of coupling agent KH550, and ultrasonically dispersed in 100ml of deionized water for 4 hours. The above mixture was centrifuged at 7200 rpm to remove the deionized water in the upper layer. Slowly remove all solvents in the solid product in the lower layer in the centrifugation step under vacuum in an oven at 50° C. to constant weight (TGA test confirmed that the grafted amount of KH550 is about 3.7 wt%). The resulting mixture was mixed with 90g high-density polyethylene, 6g maleic anhydride grafted polyethylene, 2g PE-b-PEO, 1g antioxidant 1076 and 1g heat stabilizer (dimethyl tin: dioctyl tin: tetraphenyl tin =3:10:7, mass ratio), feed into a twin-screw extruder (L / D=40), and melt blend at 210°C and 200rpm to obtain product A.

Embodiment 2

[0018] Mix 4g of C60 fullerene with 1g of coupling agent A-151, and ultrasonically disperse in 1000ml of deionized water for 3 hours. The above mixture was centrifuged at 7200 rpm to remove the deionized water in the upper layer. All solvent in the lower solid product from the centrifugation step was slowly removed under vacuum in a 50°C oven to constant weight. Mix the obtained mixture with 80g high-density polyethylene, 5g maleic anhydride grafted polyethylene, 6g PE-b-PEO, 1g antioxidant 168 and 1g heat stabilizer (dimethyl tin: dioctyl tin = 1: 1, mass ratio), into a twin-screw extruder (L / D=40), melt blending under the conditions of 185° C. and 230 rpm to obtain product B.

Embodiment 3

[0020] Mix 5g of C60 fullerene with 5g of coupling agent KH791, emulsify and disperse in 200ml of deionized water for 5 hours. The above mixture was centrifuged at 7200 rpm to remove the deionized water in the upper layer. All solvent in the lower solid product from the centrifugation step was slowly removed under vacuum in a 50°C oven to constant weight. The resulting mixture and 100g high-density polyethylene, 6g maleic anhydride grafted polyethylene, 8g PE-b-PEO, 1g antioxidant DLTDP and 1g tetraphenyl tin add twin-screw extruder (L / D= 40), melt blending under the conditions of 240° C. and 180 rpm to obtain product C.

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Abstract

The invention belongs to the field of macromolecule materials, and particularly relates to a C60 fullerene modified abrasion-resistant polyethylene composite material and a preparation method thereof. The C60 fullerene modified abrasion-resistant polyethylene composite material is characterized by being prepared from the following components in parts by mass: 1 to 10 parts of C60 fullerene, 1 to 10 parts of silane coupling agent, 75 to 100 parts of high density polyethylene, 5 to 10 parts of maleic anhydride grafted polyethylene, 1 to 10 parts of coupling agent with high molecular weight, 1 to 3 parts of antioxidant, and 1 to 3 parts of heat stabilizer.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a C60 fullerene modified wear-resistant polyethylene composite material and a preparation method thereof. Background technique [0002] Due to its excellent properties, high-density polyethylene (HDPE) is being more and more widely used in the pipeline industry. Compared with traditional pipes, HDPE pipe system has the following series of advantages: reliable connection, good low temperature impact resistance, good stress crack resistance, good chemical corrosion resistance, aging resistance, long service life, etc. However, for mines, petroleum, In metallurgy, dredging engineering and other occasions involving the transportation of slurry, coke powder, mineral powder, ore pulp, etc., the wear resistance of HDPE is insufficient, and ultra-high-density polyethylene (UHMWPE) is required. However, during the research process, it was found that although UHMWPE has some e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08L87/00C08K13/06C08K9/06C08K7/00C08K3/04C08K5/57
CPCC08L23/06C08K2201/014C08L2205/03C08L2207/062C08L51/06C08L87/005C08K13/06C08K9/06C08K7/00C08K3/04C08K5/57
Inventor 诸昌武束影殷明左志芳陈晓苏陈超
Owner YANGZHOU POLYTECHNIC INST
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