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

Example Embodiment

[0021] Example 1

[0022] A cold-resistant and impact-resistant modified polypropylene, through an organic modifier and an inorganic mineral modifier for joint toughening and strengthening modification treatment, and at the same time improving its low temperature resistance; specifically including the following parts by weight of raw materials:

[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, 1 part of oxygen agent 1010 and 5 parts of sodium dodecylbenzene sulfonate; wherein the mineral additive is a mixture of modified microsilica powder, talc powder and calcium carbonate in a mass ratio of 2:1:2.

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

[0025] (1) Preparation of modified micro-silica powder: take an appropriate amount of micro-silic...

Example Embodiment

[0032] Example 2

[0033] A cold-resistant and impact-resistant modified polypropylene, through an organic modifier and an inorganic mineral modifier for joint toughening and strengthening modification treatment, and at the same time improving its low temperature resistance; specifically including the following parts by weight of raw materials:

[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, 1010 3 parts of antioxidant, dodecane 8 parts of sodium benzene sulfonate; wherein the mineral additive is a mixture of modified micro-silica powder, talc powder and calcium carbonate in a mass ratio of 3:1:2.

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

[0036] (1) Preparation of modified micro-silica powder: take an appropriate amount of micro-silica powder and plac...

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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

technical field [0001] The invention relates to the field of plastics, in particular to a cold-resistant and impact-resistant modified polypropylene and a preparation method thereof. Background technique [0002] Polypropylene (PP) is rich in sources, low in price, easy to form and process, and has excellent comprehensive performance. It has been widely used in chemical, construction, electric power, automobile, machinery, textile, medical, packaging, building materials, furniture and other industries. In addition, polypropylene is also the main raw material for the preparation of fitness equipment. However, the low-temperature resistance of polypropylene material is insufficient, and there are disadvantages such as easy embrittlement at low temperature, poor impact resistance, and low dimensional stability of the product, which cannot meet the performance of the product. Contents of the invention [0003] The main technical problem to be solved by the present invention i...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L53/02C08K13/06C08K9/06C08K9/04C08K3/36C08K3/34C08K3/26C08K5/134
CPCC08L23/12C08L2205/02C08L2205/03C08L23/0815C08L53/02C08K13/06C08K9/06C08K9/04C08K3/36C08K3/34C08K2003/265C08K5/1345
Inventor 邹晓明
Owner SUZHOU HAOSHUN PLASTIC RUBBER CO LTD
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