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A kind of polypropylene composition and polypropylene material and application thereof

A polypropylene composition and polypropylene technology, applied in the field of polymers, can solve the problems of injection-molded thin-walled products, poor toughness, and low shrinkage

Active Publication Date: 2020-06-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantages of insufficient fluidity of existing polypropylene materials, the shortcomings of being unable to be used for injection molding thin-walled products, and / or the disadvantages of poor toughness and / or low shrinkage of existing polypropylene materials, and Provided is a new polypropylene composition, a polypropylene material prepared from the polypropylene composition, and the application of the polypropylene composition and / or polypropylene material in the preparation of seedling trays

Method used

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  • A kind of polypropylene composition and polypropylene material and application thereof

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Experimental program
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Embodiment approach

[0033] According to a preferred embodiment of the present invention, the polypropylene composition contains random copolymerized polypropylene, polyolefin elastomer, antioxidant, light stabilizer, slip agent and color masterbatch, wherein, the polypropylene Based on the total weight of the propylene composition, the content of the random copolymerized polypropylene is 64-89% by weight, the content of the polyolefin elastomer is 9-34% by weight, and the content of the antioxidant is 0.2- 1.5% by weight, the content of the light stabilizer can be 0.01-0.5% by weight, the content of the smooth agent is 0.01-3% by weight, the content of the color masterbatch is 1-5% by weight; preferably, Based on the total weight of the polypropylene composition, the content of the random copolymerized polypropylene is 70-85% by weight, the content of the polyolefin elastomer is 10-25% by weight, and the content of the antioxidant The content is 0.3-0.9% by weight, the content of the light stabil...

Embodiment 1

[0043] (1) Based on the total weight of the polypropylene composition, the components and their percentages are:

[0044] Random copolymerization polypropylene resin (at 230 ℃, the melt mass flow rate MFR under the action of 2.16kg load is 30g / 10min, the content of ethylene structural unit is 3% by weight, crystallinity is 80%), 84.95% by weight;

[0045] Polyolefin elastomer (ethylene-butene random copolymer, under 230 ℃, the melt mass flow rate MFR under 2.16kg load is 1.5g / 10min, and the content of butene structural unit is 10% by weight, crystallinity is 18%), 12% by weight;

[0046] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester, 0.2% by weight;

[0047] Tris(2,4-di-tert-butylphenyl)phosphite, 0.15% by weight;

[0048] The polymer of succinic acid and 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinol (light stabilizer 622, BASF, Germany, UV366), 0.2% by weight;

[0049] Hydrogenated palm oil glycerides, oleic acid glycerides and polyglycerides...

Embodiment 2

[0054] (1) Based on the total weight of the polypropylene composition, the components and their percentages are:

[0055] Random copolymerization polypropylene resin (at 230 ℃, the melt mass flow rate MFR under the action of 2.16kg load is 35g / 10min, the content of ethylene structural unit is 10% by weight, crystallinity is 78%), 81.70% by weight;

[0056] Polyolefin elastomer (ethylene-butene random copolymer, the melt mass flow rate MFR under 230 ℃, 2.16kg load is 5.0g / 10min, the content of butene structural unit is 8% by weight, crystallinity 15%), 15% by weight;

[0057] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester, 0.2% by weight;

[0058] Tris(2,4-di-tert-butylphenyl)phosphite, 0.2% by weight;

[0059] Dilauryl thiodipropionate, 0.25 parts by weight;

[0060] Bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 0.25% by weight;

[0061] Oleamide, 0.4% by weight;

[0062] Masterbatch, 2% by weight.

[0063] (2) The preparation method of...

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Abstract

The present invention relates to the field of polymers, particularly to a polypropylene composition, a polypropylene material, and applications of the polypropylene composition and the polypropylene material, wherein the polypropylene composition contains, by weight, 64-90% of random co-polypropylene, 9-35% of a polyolefin elastomer, and 0.2-1.5% of an antioxidant. According to the present invention, the polypropylene material has advantages of good fluidity, good shrinkage, rigidity and toughness balance, heat aging resistance and environmental aging resistance, and cannot produce stress whitening after bending 90 DEG; and the polypropylene composition and / or the polypropylene material are particularly suitable for the preparation of pot seedling cultivation disks.

Description

technical field [0001] The present invention relates to the field of polymers, in particular to a polypropylene composition, a polypropylene material prepared from the polypropylene composition, and the application of the polypropylene composition and / or polypropylene material in the preparation of seedling trays . Background technique [0002] The pot seedling transplanting complete equipment technology is a new seedling raising and transplanting technology, which is a completely different technical route from the common blanket seedling rice cultivation technology. The pot seedling transplanting complete equipment technology is a new set of new rice cultivation technology developed on the basis of manual transplanting technology, manual throwing and other mechanical transplanting cultivation techniques. Compared with the traditional blanket seedling rotary forced transplanting method, it has The seedling feeding form of the rotary slideway mechanism has the advantages of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L23/08C08K5/00
CPCC08L23/14C08L2201/08C08L23/0815C08K5/00C08K5/1345C08K5/526C08K5/372
Inventor 王希杜建强蒋洁梁静
Owner CHINA PETROLEUM & CHEM CORP
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