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Modified high-density polyethylene material and method for making same

A high-density polyethylene and modification technology, applied in the field of modified high-density polyethylene materials and their preparation, can solve the problems of poor dimensional stability, brittle cracking, large shrinkage rate, etc., and achieve good dimensional stability, toughness and Rigid unity effect

Inactive Publication Date: 2008-05-14
SHANGHAI PALLET PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The unmodified high-density polyethylene material has poor resistance to environmental stress cracking, and is not only prone to brittle cracking in environmental media, but also has a large shrinkage rate. And rigidity can not be well unified, resulting in poor dimensional stability of the product, which cannot meet the needs of related fields, such as the production of electrical components, and must be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] formula:

[0027] HDPE6070 60 parts

[0028] HDPE5000S 15 parts

[0029] EVA 15 parts

[0030] Toughened masterbatch 10 parts

[0031] 3 parts of coupling agent

[0032] Antioxidant 1010 0.1 parts

[0033] Antioxidant 168 0.2 parts

[0034] The average molecular weight of HDPE6070 is 32000, and the product of grade 6070 produced by Xinjiang Dushanzi Petrochemical Company is used;

[0035] The average molecular weight of HDPE5000S is 58000, and the product with the brand name 5000S produced by Yangzi Petrochemical Company is used;

[0036] The toughening masterbatch is a mixture of elastomer and inorganic reinforcing agent. The elastomer is EPDM rubber or polyolefin elastomer. The inorganic reinforcing agent is ultrafine calcium carbonate or talcum powder. Based on the total weight of the toughening masterbatch, the elasticity Body weight percentage content 10 ~ 20%;

[0037] The coupling agent is titanate coupling agent.

[0038] Manufacturing process:

[0039...

Embodiment 2

[0050] formula:

[0051] HDPE6070 45 parts

[0052] HDPE5000S 25 parts

[0053] EVA 10 parts

[0054] Toughened masterbatch 15 parts

[0055] 1 part coupling agent

[0056] Antioxidant 1010 0.5 parts

[0057] Antioxidant 168 0.05 parts

[0058] The average molecular weight of HDPE6070 is 38000, and the product of grade 6070 produced by Xinjiang Dushanzi Petrochemical Company is used;

[0059] The average molecular weight of HDPE5000S is 50,000, and the brand of 5000S produced by Yangzi Petrochemical Company is used;

[0060] The toughening masterbatch is a mixture of elastomer and inorganic reinforcing agent. The elastomer is EPDM rubber or polyolefin elastomer. The inorganic reinforcing agent is ultrafine calcium carbonate or talcum powder. Based on the total weight of the toughening masterbatch, the elasticity Body weight percentage 11%

[0061] The coupling agent is titanate coupling agent.

[0062] The preparation method is the same as in Example 1. The blending ...

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Abstract

The invention discloses a modified high density polyethylene (PE) material and the preparation method. With regard to the drawbacks of the high density polyethylene (PE) material, the invention adds certain elastic bodies and inorganic reinforcing agents to modify high density polyethylene (PE) in order to improve the resistance to stress and crack as well as strengthening the flexibility and processability. When used together with steel tubes, the pallet made of the modified high density polyethylene (PE) material can form the product with perfect combination of flexibility and rigidity and sound dimensional stability, which can meet the needs of relevant fields such as the filed of electric component production.

Description

technical field [0001] The invention relates to a modified high-density polyethylene material and a preparation method thereof. Background technique [0002] The unmodified high-density polyethylene material has poor resistance to environmental stress cracking, and is not only prone to brittle cracking in environmental media, but also has a large shrinkage rate. And the rigidity can not be well unified, resulting in poor dimensional stability of the product, which cannot meet the needs of related fields, such as the production of electrical components, and must be improved. Contents of the invention [0003] The technical problem to be solved in the present invention is to disclose a modified high-density polyethylene material and a preparation method thereof, so as to overcome the above-mentioned defects in the prior art. [0004] Technical concept of the present invention is such: [0005] According to the weakness of the high-density polyethylene material, the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/56B29C47/38C08L23/08C08K3/00B29C48/395
Inventor 张纪明刘兰芳
Owner SHANGHAI PALLET PLASTIC
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