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A kind of transparent polypropylene material and preparation method thereof

A transparent polypropylene and polypropylene material technology, applied in the field of polymer materials, can solve problems such as high melting point, unsuitable injection molding processing temperature for thin-walled products, uneven distribution, etc.

Active Publication Date: 2021-09-10
东华能源(张家港)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

But under existing technical conditions, the nucleating agent commonly used on the market is sorbitol acetal compound, such as dibenzylidene sorbitol acetal derivative, yet, the melting point of the acetal compound of sorbitol is too high, It is not easy to dissolve in polypropylene, and the processing temperature is required to be higher than 220°C to dissolve a sufficient amount, but this temperature is not suitable for the injection molding processing temperature of thin-walled products, and it is easy to distribute unevenly during the addition process, which may easily cause the instability of the final product performance.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 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), nucleating agent HPN-20E (chemical name is 1,2-cyclohexane di Calcium formate) 0.05 part, main antioxidant 1010 (chemical name tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) 0.05 part, secondary antioxidant 168 ( The chemical name is tris[2.4-di-tert-butylphenyl] phosphite 168) 0.1 part, the organic peroxide 101 (chemical name is 2,5-dimethyl-2,5-bis(tert-butyl peroxy base) hexane) 0.03 parts.

Embodiment 2

[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), nucleating agent HPN-20E (chemical name is 1,2-cyclohexane di Calcium formate) 0.05 part, main antioxidant 1010 (chemical name tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) 0.08 part, auxiliary antioxidant 168 ( The chemical name is tris[2.4-di-tert-butylphenyl] phosphite 168) 0.1 part, the organic peroxide 101 (chemical name is 2,5-dimethyl-2,5-bis(tert-butyl peroxy base) hexane) 0.03 parts.

Embodiment 3

[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), nucleating agent HPN-20E (chemical name is 1,2-cyclohexane di Calcium formate) 0.1 part, primary antioxidant 1010 (chemical name tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester) 0.05 part, secondary antioxidant 168 ( The chemical name is tris[2.4-di-tert-butylphenyl] phosphite 168) 0.1 part, the organic peroxide 101 (chemical name is 2,5-dimethyl-2,5-bis(tert-butyl peroxy base) hexane) 0.03 parts.

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Abstract

The invention discloses a transparent polypropylene material, which comprises the following components in parts by weight: 100 parts of homopolypropylene, 0.05-0.2 parts of nucleating agent, 0.04-0.3 parts of antioxidant, and 0.01-0.04 parts of organic peroxide share. The invention also discloses a preparation method of transparent polypropylene material, comprising the following steps: mixing and dispersing homopolypropylene, nucleating agent, antioxidant and organic peroxide in a high-speed mixer, heating, melting and extruding The polypropylene material is obtained by granulation, wherein the homopolypropylene is obtained by the hydrogen modulation method, and after being degraded by adding an organic peroxide, it is finally obtained at 230°C and under a load of 2.16kg. Polypropylene material with a melt flow rate of 10min. The transparent polypropylene material prepared by the invention exhibits good processing fluidity, balance between rigidity and toughness, dimensional stability, thermal deformation resistance, and optical performance of low haze.

Description

technical field [0001] The invention relates to a transparent 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 t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K5/00C08K5/14C08K5/098
Inventor 崔寅鑫汪诗平王耀华陈强喻秉俊易思善
Owner 东华能源(张家港)新材料有限公司
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