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Toughening polypropylene material and preparation method thereof

A polypropylene material and a toughening technology are applied in the field of toughening polypropylene materials and their preparation, which can solve the problem of high equipment investment cost and achieve the effects of enhanced low temperature resistance, reduced energy consumption, and reduced temperature

Active Publication Date: 2019-06-07
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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  • Toughening polypropylene material and preparation method thereof
  • Toughening polypropylene material and preparation method thereof
  • Toughening 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 (the chemical name of the main component is 2,2'-methylene bis(4,6-di-tert-butylphenyl) sodium phosphate) 0.04 parts, the main antioxidant 1010 (the chemical name is tetrakis[β-( 3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) 0.06 parts, auxiliary antioxidant 168 (chemical name is tris[2.4-di-tert-butylphenyl] phosphite 168) 0.12 0.04 parts of organic peroxide 101 (chemical name 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane).

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 (the chemical name of the main component is 2,2'-methylenebis(4,6-di-tert-butylphenyl) sodium phosphate) 0.08 parts, the main antioxidant 1010 (the chemical name is tetrakis[β-( 3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) 0.06 parts, auxiliary antioxidant 168 (chemical name is tris[2.4-di-tert-butylphenyl] phosphite 168) 0.12 0.04 parts of organic peroxide 101 (chemical name 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane).

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 (the chemical name of the main component is 2,2'-methylenebis(4,6-di-tert-butylphenyl) sodium phosphate) 0.11 parts, the main antioxidant 1010 (the chemical name is tetrakis[β-( 3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) 0.06 parts, auxiliary antioxidant 168 (chemical name is tris[2.4-di-tert-butylphenyl] phosphite 168) 0.12 0.04 parts of organic peroxide 101 (chemical name 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane).

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Abstract

The invention discloses a toughening polypropylene material, comprising the following components in parts by weight: 100 parts of homo-polypropylene, 0.1-10 parts of polyethylene, 0.05-0.2 part of nucleating agent, 0.04-0.3 part of antioxygen, and 0.01-0.04 part of organic peroxide. The invention also discloses a preparation method of the toughening polypropylene material, and the preparation method includes the following steps: adding homo-polypropylene, polyethylene, a nucleating agent, an antioxygen and an organic peroxide into a high speed mixer for mixing, and conducting melting blendingextruding pelletizing on the uniformly mixed premix by a twin screw extruder, so as to obtain the final product. According to the invention, a low proportion of polyethylene is added into the formulacomponents and is used as a toughening agent of polypropylene, thereby realizing impact modification of polypropylene, refining grain size of polypropylene crystal, increasing impact resistance of thepolypropylene material, enhancing low-temperature resistance, and decreasing the melting point of the polypropylene material, decreasing the processing temperature and correspondingly reducing energyconsumption.

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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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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