Modified polypropylene material and preparation method thereof

A polypropylene material and modification technology, applied in the field of plastic products, can solve the problems of poor environmental stress cracking resistance, brittle cracking, poor toughness of polypropylene materials, etc., and achieve the effects of superior aging resistance, good toughness and rigidity

Inactive Publication Date: 2013-12-04
SHANGHAI PALLET PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Unmodified polypropylene material has poor toughness, poor resistance to environmental stress cracking, and is prone to brittle cracking in environmental media, and is easily affected by ambient light and heat, which affects the service life of the product and cannot meet the requirements of long-term outdoor use. It must be modified for outdoor use in areas such as southern China

Method used

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  • Modified polypropylene material and preparation method thereof
  • Modified polypropylene material and preparation method thereof
  • Modified polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] formula:

[0022]

[0023] The molecular weight of PPJ340 is 300,000-500,000, and it is a product of J340 produced by Sinopec Yangzi Petrochemical Company;

[0024] The toughening agent is an elastomer, and the 8150 of DuPont Company of the United States is used;

[0025] The filler is 5000-mesh calcium carbonate from Hangzhou Advanced Calcium Industry Co., Ltd.;

[0026] Antioxidant is the composite antioxidant of 1010 and 168 of Jinhai Yabao Company, and the weight ratio of the two is 1: 2;

[0027] Anti-UV agent can adopt Ciba's 531.

[0028] Manufacturing process:

[0029] According to the proportion, each component was first mixed in a high-speed mixer for 5 minutes, and then blended and extruded in a screw extruder at a blending temperature of 220°C to obtain the modified polypropylene material of the present invention.

Embodiment 1

[0030] The polypropylene material of embodiment 1 adopts ASTM standard test, and test result is as table 1:

[0031] Table 1: The performance test result of the polypropylene material of embodiment 1

[0032]

[0033]

example 2

[0035] formula:

[0036]

[0037] The molecular weight of PPJ340 is 300,000-500,000, and it is a product of J340 produced by Sinopec Yangzi Petrochemical Company;

[0038] The toughening agent is an elastomer, and the 8150 of DuPont Company of the United States is used;

[0039] The filler is calcium carbonate above 5000 mesh from Hangzhou Advanced Calcium Industry Co., Ltd.;

[0040] Antioxidant is the composite antioxidant of 1010 and 168 of Jinhai Yabao Company, and the weight ratio of the two is 1: 3;

[0041] The anti-UV agent can adopt Ciba 770.

[0042] Manufacturing process:

[0043] According to the proportion, each component was first mixed in a high-speed mixer for 4 minutes, and then blended and extruded in a screw extruder at a blending temperature of 200°C to obtain the modified polypropylene material of the present invention.

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PUM

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Abstract

The invention belongs to the technical field of plastic products. An unmodified polypropylene material has the disadvantages of bad toughness, bad environment stress cracking resistance, easy brittle creaking, easy environmental light and heat ageing and the like, so the service life of products is influenced. The invention discloses a modified polypropylene material and a preparation method thereof. An antioxidant and an anti-UV agent are added according to the characteristics of the polypropylene material to improve the weather ability of polypropylene in order to improve the natural light ageing and thermo-oxidative aging performances of the polypropylene material, so a problem of the performance reduction caused by ageing when partial plastic pallets are used outdoor for a long term is solved, and relevant fields having high use requirements, such as the outdoor material circulation industry in the especially-long illumination time south, are satisfied.

Description

technical field [0001] The invention belongs to the technical field of plastic products, and in particular relates to a high weather resistance polypropylene material and a preparation method thereof. Background technique [0002] Unmodified polypropylene material has poor toughness, poor resistance to environmental stress cracking, and is prone to brittle cracking in environmental media, and is easily affected by ambient light and heat, which affects the service life of the product and cannot meet the requirements of long-term outdoor use. It must be modified for outdoor use in southern China and other regions. [0003] At present, there is an urgent need for a polypropylene material with high weather resistance and a preparation method thereof in the market. Contents of the invention [0004] The purpose of the present invention is to provide a modified polypropylene material and a preparation method thereof, which are not easily affected by ambient light and heat, are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/16C08L23/00C08K13/02C08K3/34C08K3/26B29C47/92B29C48/92
Inventor 张纪明刘兰芳
Owner SHANGHAI PALLET PLASTIC
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