Cold resistant anti-impact modified polypropylene and preparation method thereof

A cold-resistant and impact-resistant polypropylene technology, applied in the field of plastics, to achieve the effects of improved impact toughness and molding shrinkage, excellent comprehensive performance, and improved low-temperature resistance

Inactive Publication Date: 2016-11-09
SUZHOU HAOSHUN PLASTIC RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main technical problem to be solved by the present invention is to provide a cold-resistant and impact-resistant modified polypropylene and its

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A cold-resistant and impact-resistant modified polypropylene, which is jointly toughened and modified by an organic modifier and an inorganic mineral modifier, and also improves its low-temperature resistance; specifically, it includes the following raw materials in parts by weight:

[0023] 70 parts of polypropylene (PP), 15 parts of ethylene / octene copolymer (POE), 10 parts of styrene / butadiene / styrene copolymer (SBS), 20 parts of mineral additives, 10 parts of silane coupling agent, anti 1 part of oxygen agent 1010, 5 parts of sodium dodecylbenzenesulfonate; wherein, the mineral additive is a mixture of modified silica fume, talcum powder and calcium carbonate in a mass ratio of 2:1:2.

[0024] The preparation method of the above-mentioned cold-resistant and impact-resistant modified polypropylene, the specific steps are as follows:

[0025] (1) Preparation of modified micro-silica powder: Take an appropriate amount of micro-silica powder and place it in a box-typ

Embodiment 2

[0033] A cold-resistant and impact-resistant modified polypropylene, which is jointly toughened and modified by an organic modifier and an inorganic mineral modifier, and also improves its low-temperature resistance; specifically, it includes the following raw materials in parts by weight:

[0034] 80 parts of polypropylene, 10 parts of ethylene / octene copolymer, 10 parts of styrene / butadiene / styrene copolymer, 30 parts of mineral additives, 15 parts of silane coupling agent, 3 parts of antioxidant 1010, dodecane 8 parts of sodium base benzene sulfonate; Wherein, described mineral additive is the mixture that modified microsilica powder, talcum powder and calcium carbonate mix with the mass ratio of 3:1:2.

[0035] The preparation method of the above-mentioned cold-resistant and impact-resistant modified polypropylene, the specific steps are as follows:

[0036] (1) Preparation of modified micro-silica powder: Take an appropriate amount of micro-silica powder and place it i

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Abstract

The invention discloses a cold resistant anti-impact modified polypropylene (PP) and a preparation method thereof. The cold resistant anti-impact modified polypropylene comprises the following raw materials by weight: 70-80 parts of PP, 10-15 parts of POE, 5-10 parts of SBS, 20-30 parts of a mineral additive, 10-15 parts of a silane coupling agent, 1-3 parts of an antioxidant, and 5-8 parts of a dispersant. Compared with pure PP, the modified PP has tensile strength improved by 15-25%, impact strength increased by 35-45%, and molding shrinkage decreased by more than 80%. The invention uses POE, SBS, mineral raw materials and other modifiers to conduct blending modification on PP, effectively improves the low temperature resistance of PP, and endows a modified polypropylene composite material with excellent impact resistance, rigidity, aging resistance and cold resistance. Modified polypropylene can meet the impact strength requirement of automobile bumpers, can be widely applied to processing of automobile bumpers, instrument panels, body-building racks and other parts with low temperature resistance, and has excellent comprehensive performance.

Description

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Claims

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Application Information

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Owner SUZHOU HAOSHUN PLASTIC RUBBER CO LTD
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