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High strength and low shrinkage PP/COC alloy material and preparation method thereof

A technology of alloy material and low shrinkage rate, which is applied in the field of low shrinkage PP/COC alloy material and its preparation, and high strength, which can solve the problem of thermal stability, wear resistance and corrosion resistance of materials, and the limitation of polypropylene application , low strength of polypropylene, etc., to achieve the effect of easy scratch on the surface, wide range of use and low production cost

Inactive Publication Date: 2017-11-24
广东壹豪新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But at the same time, the strength of polypropylene is low, the shrinkage rate is large, and the dimensional stability is low, so that the products made of polypropylene have problems such as easy scratches on the surface, making it more difficult for polypropylene to expand the market in other fields. The application of polypropylene cause restrictions
However, many modification methods currently require the addition of a large amount of additives. The addition of inorganic lubricating fillers will affect the toughness of the material, and the addition of tougheners will affect the thermal stability, wear resistance and corrosion resistance of the material.

Method used

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  • High strength and low shrinkage PP/COC alloy material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0037] A high-strength, low-shrinkage PP / COC alloy material and a preparation method thereof, the alloy material comprising the following raw materials in parts by weight:

[0038] 20 parts polypropylene

[0039] Cycloolefin copolymer 50 parts

[0040] Compatibilizer 1 part

[0041] Toughener 1 part

[0042] Dispersant 0.1 parts

[0043] Lubricant 0.2 parts

[0044] Antioxidant 0.1 parts.

[0045] The cyclic olefin copolymer is an amorphous cyclic olefin copolymer with a molecular weight of 4000 and a polymerization degree of 800.

[0046] The compatibilizer is a cyclic acid anhydride type compatibilizer, and the cyclic acid anhydride type compatibilizer is a maleic anhydride grafted polyolefin.

[0047] The toughening agent is methyl methacrylate-butadiene-styrene terpolymer.

[0048] The dispersant is at least one of carmellose sodium and polyoxypropylene.

[0049] Described lubricant is stearic acid amide.

[0050] The antioxidant is β (3,5 di-tert-butyl-4-hydroxyp...

Embodiment 2

[0055] A high-strength, low-shrinkage PP / COC alloy material and a preparation method thereof, the alloy material comprising the following raw materials in parts by weight:

[0056] 35 parts polypropylene

[0057] Cycloolefin copolymer 42 parts

[0058] Compatibilizer 2 parts

[0059] Toughener 2 parts

[0060] Dispersant 0.2 parts

[0061] Lubricant 0.35 parts

[0062] Antioxidant 0.15 parts.

[0063] The cyclic olefin copolymer is an amorphous cyclic olefin copolymer with a molecular weight of 15500 and a polymerization degree of 650.

[0064] The compatibilizer is a carboxylic acid type compatibilizer, and the carboxylic acid type compatibilizer is ethylene-acrylate terpolymer grafted glycidyl ester.

[0065] The toughening agent is at least one of styrene-butadiene thermoplastic elastomer and polyimide.

[0066] The dispersant is at least one of polyoxyethylene copolymer and alkyl polyoxyethylene.

[0067] The lubricant is glycerol trihydroxystearate.

[0068] The ...

Embodiment 3

[0073] A high-strength, low-shrinkage PP / COC alloy material and a preparation method thereof, the alloy material comprising the following raw materials in parts by weight:

[0074] Polypropylene 50 parts

[0075] Cyclic olefin copolymer 35 parts

[0076] Compatibilizer 3 parts

[0077] Toughener 3 parts

[0078] Dispersant 0.3 parts

[0079] Lubricant 0.5 parts

[0080] Antioxidant 0.2 parts.

[0081] The cycloolefin copolymer is an amorphous cycloolefin copolymer with a molecular weight of 26500 and a polymerization degree of 500.

[0082] The compatibilizer is an oxazoline-type compatibilizer, and the oxazoline-type compatibilizer is oxazoline-grafted polystyrene.

[0083] The toughening agent is at least one of acrylonitrile-butadiene-styrene copolymer and chlorinated polyethylene.

[0084] The dispersant is at least one of polyoxypropylene ether and sodium dodecylbenzenesulfonate.

[0085] The lubricant is at least one of N,N'-ethylenebisstearamide and n-butyl stea...

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Abstract

The invention relates to the technical field of polymer materials and particularly relates to a high strength and low shrinkage PP / COC alloy material and a preparation method thereof. The high strength and low shrinkage PP / COC alloy material is prepared from 20 to 80 parts by weight of polypropylene, 20 to 50 parts by weight of a cycloolefin copolymer, 1 to 5 parts by weight of a compatibilizer, 1 to 5 parts by weight of a toughener, 0.1 to 0.5 parts by weight of a dispersant, 0.2 to 0.8 parts by weight of a lubricant and 0.1 to 0.3 parts by weight of an antioxidant. The PP / COC alloy material has the advantages of high strength, low shrinkage rate, good dimensional stability, excellent toughness, corrosion resistance, abrasion resistance, oil resistance, impact resistance, good film moldability, good processing performances, low cost and high use value. The preparation method has simple processes, is easy to operate and control, realizes stable quality, has high production efficiency, realizes a low production cost and is suitable for large-scale industrialized production.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-strength, low-shrinkage PP / COC alloy material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is one of the commonly used plastic materials in the plastic market. Its low density and low cost make polypropylene materials have a certain range of plastic applications. [0003] But at the same time, the strength of polypropylene is low, the shrinkage rate is large, and the dimensional stability is low, so that the products made of polypropylene have problems such as easy scratches on the surface, making it more difficult for polypropylene to expand the market in other fields. The application of polypropylene cause restrictions. However, many current modification methods require the addition of a large amount of additives. The addition of inorganic lubricating fillers will affect the toughness of the material, and the addition of t...

Claims

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Application Information

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IPC IPC(8): C08L45/00C08L23/12C08L51/06C08L51/04C08L1/28C08L71/02C08L79/08C08L23/28C08K5/20C08K5/134B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08L23/12C08L45/00C08L2201/08C08L2205/035C08L2205/08C08L51/06C08L51/04C08L1/286C08L71/02C08L53/02C08L79/08C08K5/20C08K5/1345C08L55/02C08L23/286C08L29/14C08L83/04C08K5/101C08K5/42C08K5/526
Inventor 杨建
Owner 广东壹豪新材料科技股份有限公司
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