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High-impact polypropylene material and preparation method thereof

A high-impact polypropylene and polypropylene technology, applied in the field of polymer materials, can solve the problems of high shrinkage rate and low notched impact strength, and achieve the effect of improving rigidity, changing physical and mechanical properties, and expanding the scope of application

Active Publication Date: 2021-02-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polypropylene has a large molding shrinkage rate, brittle quality, and low notched impact strength, especially at low temperatures. With the gradual increase in the demand for polypropylene in various industries and the development of science and technology, people have higher and higher requirements for the comprehensive performance of polypropylene materials. Higher and higher, resulting in many of its performance needs to be improved

Method used

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  • High-impact polypropylene material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0025] This example is a high-impact polypropylene material provided by the present invention, which includes the following raw materials in parts by mass: 99.62 parts of polypropylene powder, 0.1 part of primary antioxidant 1010, 0.08 part of auxiliary antioxidant 168 and components 0.2 parts of nuclear agent.

[0026] The preparation method of above-mentioned high-impact polypropylene material comprises the following steps:

[0027] (1) Polymerize with propylene, ethylene and hydrogen as raw materials to obtain polypropylene powder with ethylene content of 14.3%, rubber content of 20%, and melt flow rate of 8.7g / 10min (measured according to GB3682);

[0028] (2) According to the proportioning ratio, the polypropylene powder described in step (1) is mixed with the main antioxidant 1010, the auxiliary antioxidant 168, and the nucleating agent to obtain a mixed material;

[0029] (3) The mixed material described in step (2) is added in the extruder (the load is 10 tons / hour), ...

Embodiment 2

[0031] This embodiment is a high-impact polypropylene material provided by the present invention, which includes the following raw materials in parts by mass: 99.5 parts of polypropylene powder, 0.15 parts of primary antioxidant 1010, 0.1 part of auxiliary antioxidant 168 and components 0.25 parts of nuclear agent.

[0032] The preparation method of above-mentioned high-impact polypropylene material comprises the following steps:

[0033] (1) Carry out polymerization with propylene, ethylene and hydrogen as raw materials, the obtained ethylene content is 14.5%, the rubber content is 20.5%, and the melt flow rate is the polypropylene powder of 9.5g / 10min (measured according to GB3682);

[0034] (2) According to the proportioning ratio, the polypropylene powder described in step (1) is mixed with the main antioxidant 1010, the auxiliary antioxidant 168, and the nucleating agent to obtain a mixed material;

[0035] (3) The mixed material described in step (2) is added in the ext...

Embodiment 3

[0037] This embodiment is a high-impact polypropylene material provided by the present invention, which includes the following raw materials in parts by mass: 99.57 parts of polypropylene powder, 0.1 part of primary antioxidant 1010, 0.1 part of auxiliary antioxidant 168 and components 0.23 parts of nuclear agent.

[0038] The preparation method of above-mentioned high-impact polypropylene material comprises the following steps:

[0039] (1) Carry out polymerization with propylene, ethylene and hydrogen as raw materials, the obtained ethylene content is 15%, the rubber content is 21.3%, and the melt flow rate is the polypropylene powder of 9.3g / 10min (measured according to GB3682);

[0040] (2) According to the proportioning ratio, the polypropylene powder described in step (1) is mixed with the main antioxidant 1010, the auxiliary antioxidant 168, and the nucleating agent to obtain a mixed material;

[0041] (3) The mixed material described in step (2) is added in the extrud...

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Abstract

The invention relates to a high-impact polypropylene material and a preparation method thereof, and belongs to the field of high polymer materials. The high-impact-resistance polypropylene material provided by the invention is composed of the following preparation raw materials in parts by mass: 99 to 99.85 parts of polypropylene powder, 0.05 to 0.3 part of a main antioxidant 1010, 0.05 to 0.2 part of an auxiliary antioxidant 168 and 0.05 to 0.5 part of a nucleating agent. According to the invention, the nucleating agent mica hydrate is used to be mixed with the antioxidant and the polypropylene powder, the mixture is extruded by an extruder to obtain the high-impact polypropylene material, and the rigidity of the product is improved by adding the mica hydrate under the condition that theimpact property of the product is not reduced; the high impact resistance, toughness and dimensional stability of the high-impact-resistance polypropylene material disclosed by the invention are remarkably improved, and the application range of the polypropylene material is widened.

Description

technical field [0001] The invention relates to a high-impact polypropylene material and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] Polypropylene (PP) has rich sources of raw materials, cheap price, low relative density, excellent processing performance, high yield strength, tensile strength and elastic modulus, good electrical insulation, good stress crack resistance and chemical resistance , its products are non-toxic, tasteless, and have good gloss, so they are widely used in automobiles, machinery, home appliances, packaging and other fields. However, polypropylene has a large molding shrinkage rate, brittle quality, and low notched impact strength, especially at low temperatures. With the gradual increase in the demand for polypropylene in various industries and the development of science and technology, people have higher and higher requirements for the comprehensive performance of polypropylene materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08K13/02C08K5/134C08K5/526C08K3/34
CPCC08K13/02C08K5/1345C08K5/526C08K3/34C08L2205/24C08L23/142
Inventor 卢瑞真蒋文军封水彬李国飞周丹东
Owner CHINA PETROLEUM & CHEM CORP
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