Polypropylene composite material with high strength and acid and alkali resistance and preparation method thereof

A technology of composite materials and polypropylene, which is applied in the field of high-strength, acid and alkali-resistant polypropylene composite materials and its preparation, and can solve the problems of large reduction in the strength of polypropylene materials and failure to meet the use requirements.

Active Publication Date: 2019-03-22
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some occasions where there are high-temperature chemical acid-base liquids, after a period of corrosio...

Method used

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  • Polypropylene composite material with high strength and acid and alkali resistance and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0017] A high-strength, acid and alkali-resistant polypropylene composite material, made of the following raw materials in parts by weight: 100 parts of polypropylene, 15 parts of octa(N-cyclohexyl)benzamidopolysilsesquioxane, nucleated 0.3 part of anti-oxidant, 1 part of antioxidant, the melt index of described polypropylene measured by GB / T3682-2000 method is 17.5g / 10min; The described nucleating agent is two (p-methylbenzylidene) sorbitol, The mixture of TMB-5 and sodium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, the mass ratio of the three is 100:20:3; the antioxidant is an antioxidant 1076.

[0018] The preparation method of above-mentioned polypropylene composite material, comprises the following steps:

[0019] (1) First, pre-mix polypropylene, octa(N-cyclohexyl)benzamidopolysilsesquioxane, nucleating agent, and antioxidant in a high-speed mixer according to the proportion;

[0020] (2) Add the pre-mixture obtained in step (1) into a twin-screw extruder for ...

Embodiment 2

[0023] A high-strength, acid and alkali-resistant polypropylene composite material, made of the following raw materials in parts by weight: 100 parts of polypropylene, 13 parts of octa(N-cyclohexyl)benzamide polysilsesquioxane, nucleated 0.5 part of agent, 2 parts of antioxidant, the melting index of described polypropylene is 19.6g / 10min measured by GB / T3682-2000 method; The described nucleating agent is two (p-ethylbenzylidene) sorbitol, A mixture of TMB-5 and 2,2'-methylenebis(4,6-di-tert-butylphenyl)aluminum phosphate, the mass ratio of the three is 100:10:5; the antioxidant is an antioxidant 1010.

[0024] The preparation method of the above-mentioned polypropylene composite material is the same as in Example 1.

Embodiment 3

[0026] A high-strength, acid and alkali-resistant polypropylene composite material, made of the following raw materials in parts by weight: 100 parts of polypropylene, 10 parts of octa(N-cyclohexyl)benzamidopolysilsesquioxane, nucleated 0.1 part of anti-oxidant, 0.5 part of antioxidant; The melting index of the polypropylene measured by GB / T3682-2000 method is 15.1g / 10min; The nucleating agent is two (p-methylbenzylidene) sorbitol, A mixture of TMB-5 and 2,2'-methylenebis(4,6-di-tert-butylphenyl)aluminum phosphate, the mass ratio of the three is 100:30:4; the antioxidant is an antioxidant One or more of 1076, antioxidant 1024, antioxidant 1010 and antioxidant 168.

[0027] The preparation method of the above-mentioned polypropylene composite material is the same as in Example 1.

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Abstract

The invention discloses a polypropylene composite material with high strength and acid and alkali resistance. The polypropylene composite material is prepared from the following raw materials in partsby weight: 100 parts of polypropylene, 10-20 parts of octa-(N-cyclohexyl) acylamino polysilsesquioxane, 0.1-0.5 part of nucleating agent and 0.5-2 parts of antioxidant; melt index of polypropylene measured on the basis of GB/T3682-2000 process is 15-20g/10min; a mixture of DBS nucleating agent, arylamine nucleating agent and aryl phosphate nucleating agent is served as the nucleating agent, wherein the mass ratio of DBS nucleating agent to arylamine nucleating agent to aryl phosphate nucleating agent is at 100:(10-30):(3-5); one or more of antioxidant 1076, antioxidant 1024, antioxidant 1010and antioxidant 168 is served as the antioxidant. Through research, the invention accidently finds that the mixture of DBS nucleating agent, arylamine nucleating agent and aryl phosphate nucleating agent at specific mass ratio is capable of synergistically promoting acid and alkali resistance of polypropylene and is capable of further promoting the strength of polypropylene especially under the use environment under higher temperature.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, in particular to a high-strength, acid and alkali-resistant polypropylene composite material and a preparation method thereof. Background technique [0002] With the rapid development of the national economy, high-performance, low-cost thermoplastic resin-based composite materials have been widely used. However, due to its inherent low modulus, low strength and low stability, it is limited in some application fields. The method of composite modification of general-purpose polymer materials can greatly improve the performance of a single material and meet the needs of material development. It is an effective shortcut for the development of new materials to prepare reinforced thermoplastic resin-based composites by adding various functional additives to thermoplastic resins and modifying the resins. This has become the consensus of the scientific and technological circles and ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L83/08C08K5/1575C08K5/523C08K5/20
CPCC08L23/12C08L2205/24C08L83/08C08K5/1575C08K5/523C08K5/20
Inventor 张志松
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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