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A kind of toughened polypropylene material and preparation method thereof

A polypropylene material and homopolypropylene technology are applied in the field of toughened polypropylene materials and their preparation, which can solve the problem of high equipment investment costs

Active Publication Date: 2021-09-10
东华能源(宁波)新材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical copolymerization method is to pass a certain amount of modifier monomer into the polymerization reactor during the polymerization reaction of polypropylene. Under the action of the catalyst, the modifier monomer such as ethylene participates in the polymerization reaction of propylene to form a copolymer. Because this method involves a more complicated polymerization process, the investment cost of equipment is higher

Method used

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  • A kind of toughened polypropylene material and preparation method thereof
  • A kind of toughened polypropylene material and preparation method thereof
  • A kind of toughened polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The polypropylene material is prepared according to the following components by weight: 100 parts of homopolypropylene (prepared by hydrogen adjustment method, MFR is 15g / 10min), 1 part of polyethylene (LLDPE, commercially available grade is 7042), nucleating agent NA -21 0.04 part, main antioxidant 1010 (chemical name tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) 0.06 part, auxiliary antioxidant 168 (chemical Named as tris[2.4-di-tert-butylphenyl]phosphite 168) 0.12 parts, organic peroxide 101 (chemical name is 2,5-dimethyl-2,5-bis(tert-butyl peroxy ) hexane) 0.04 parts.

Embodiment 2

[0028]The polypropylene material is prepared according to the following components by weight: 100 parts of homopolypropylene (prepared by hydrogen adjustment method, MFR is 15g / 10min), 1 part of polyethylene (LLDPE, commercially available grade is 7042), nucleating agent NA -21 0.08 part, 0.06 part of primary antioxidant 1010 (chemical name tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester), secondary antioxidant 168 (chemical Named as tris[2.4-di-tert-butylphenyl]phosphite 168) 0.12 parts, organic peroxide 101 (chemical name is 2,5-dimethyl-2,5-bis(tert-butyl peroxy ) hexane) 0.04 parts.

Embodiment 3

[0030] The polypropylene material is prepared according to the following components by weight: 100 parts of homopolypropylene (prepared by hydrogen adjustment method, MFR is 15g / 10min), 1 part of polyethylene (LLDPE, commercially available grade is 7042), nucleating agent NA -21 0.11 part, main antioxidant 1010 (chemical name tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) 0.06 part, secondary antioxidant 168 (chemical Named as tris[2.4-di-tert-butylphenyl]phosphite 168) 0.12 parts, organic peroxide 101 (chemical name is 2,5-dimethyl-2,5-bis(tert-butyl peroxy ) hexane) 0.04 parts.

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Abstract

The invention discloses a toughened polypropylene material, which comprises the following components in parts by weight: 100 parts of homopolypropylene, 0.1-10 parts of polyethylene, 0.05-0.2 parts of nucleating agent, and 0.04-0.3 parts of antioxidant , 0.01~0.04 parts of organic peroxide. The invention also discloses a preparation method of toughened polypropylene material, comprising the following steps: adding homopolypropylene, polyethylene, nucleating agent, antioxidant and organic peroxide into a high-speed mixer and mixing, mixing The homogeneous premixed material is made by melting, blending, extruding and granulating with a twin-screw extruder. In the present invention, by adding a low proportion of polyethylene into the formula components, as a toughening agent for polypropylene, the impact modification of polypropylene is realized, the crystal grain size of polypropylene is refined, and the polypropylene material is increased. The impact resistance and low temperature resistance are enhanced, and the melting point of polypropylene material is lowered, so that the processing temperature is lowered, and the energy consumption is also reduced.

Description

technical field [0001] The invention relates to a toughened polypropylene material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Polypropylene is one of the five general-purpose plastics. It has good physical properties and formability, high chemical corrosion resistance, low density, non-toxic and harmless, and its high versatility makes it widely used in many fields of production and life. As an environment Friendly material, its scope of use is rapidly expanding, including automotive applications, packaging applications, household goods applications, storage applications, etc. In recent years, high-flow transparent polypropylene special materials for rapid thin-wall injection molding have shown broad application prospects in the fields of food packaging, medicine and hygiene, and daily necessities. Thin-walled containers such as lockers. However, under normal circumstances, the fluidity, impact tou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/08C08K5/523C08K5/14C08K5/00C08K5/134C08K5/526
Inventor 汪诗平崔寅鑫王耀华陈强喻秉俊易思善
Owner 东华能源(宁波)新材料有限公司
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