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Active basic magnesium sulfate whisker modified polypropylene composite material and preparation method thereof

A magnesium sulfate whisker and composite material technology, which is applied in the field of active basic magnesium sulfate whisker modified polypropylene composite material and its preparation, can solve the problem that the strength, stiffness and heat resistance cannot meet the requirements of parts, limit polypropylene Application and development, poor impact performance of polypropylene, etc., to achieve the effect of improving the scope and depth of use, improving service life, and enhancing compatibility

Active Publication Date: 2015-07-01
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polypropylene is a general-purpose plastic, but when making engineering parts such as interior and exterior parts of automobiles, its strength, stiffness and heat resistance cannot meet the requirements of the parts. At the same time, polypropylene has poor impact properties, especially poor low-temperature impact properties. Moreover, its molding shrinkage rate is large, these shortcomings limit the application and development of polypropylene in engineering parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Copolymerized polypropylene: 48 parts

[0052] Homopolypropylene: 40 parts

[0053] Toughener POE: 10 parts

[0054] Processing aid TAF: 0.7 parts

[0055] Processing aid CaSt 2 : 0.4 parts

[0056] Silane coupling agent KH550: 0.3 parts

[0057] Hydrochloric acid solution: 0.5 parts

[0058] Heat stabilizer 1010: 0.2 parts

[0059] Heat stabilizer 168: 0.2 parts

[0060] Basic magnesium sulfate whiskers: 10 parts

[0061] This embodiment adopts a twin-screw extruder with a length-to-diameter ratio of 35:1. Polypropylene, a toughening agent and a heat stabilizer are melted, mixed, and dispersed in the extruder, and then the active basic magnesium sulfate whisker The premix is ​​fed from its side, plasticized at a temperature of 190-220°C, extruded and granulated to obtain the product.

Embodiment 2

[0063] Copolymerized polypropylene: 42 parts

[0064] Homopolypropylene: 28 parts

[0065] Toughener PE: 8 parts

[0066] Processing aid TAF: 0.3 parts

[0067] Processing aid EBS: 0.4 parts

[0068] Silane coupling agent KH560: 0.4 parts

[0069] Sulfuric acid solution: 0.4 parts

[0070] Heat stabilizer 1010: 0.3 parts

[0071] 2,6-tertiary butyl-4-methylphenol: 0.3 parts

[0072] Basic magnesium sulfate whiskers: 20 parts

[0073] This embodiment adopts a twin-screw extruder with a length-to-diameter ratio of 40:1. Polypropylene, a toughening agent and a heat stabilizer are melted, mixed, and dispersed in the extruder, and then the active basic magnesium sulfate whisker The premix is ​​fed from its side, plasticized at a temperature of 190-220°C, extruded and granulated to obtain the product.

Embodiment 3

[0075] Copolymerized polypropylene: 36 parts

[0076] Homopolypropylene: 24 parts

[0077] Toughener POE: 5 parts

[0078] Processing aid TAF: 0.1 parts

[0079] Processing aid CaSt 2 : 0.2 parts

[0080] Silane coupling agent KH570: 0.5 parts

[0081] Phosphoric acid solution: 0.3 parts

[0082] Bis(3,5-tertiary butyl-4-hydroxyphenyl)sulfide: 0.5 parts

[0083] Heat stabilizer 168: 0.5 parts

[0084] Basic magnesium sulfate whiskers: 30 parts

[0085] This embodiment adopts a twin-screw extruder with a length-to-diameter ratio of 50:1. Polypropylene, toughening agent and heat stabilizer are melted, mixed and dispersed in this extruder, and then the active basic magnesium sulfate whisker The premix is ​​fed from its side, plasticized at a temperature of 190-220°C, extruded and granulated to obtain the product.

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Abstract

The invention discloses an active basic magnesium sulfate whisker modified polypropylene composite material and a preparation method thereof. The composite material consists of polypropylene, basic magnesium sulfate whiskers, a flexibilizer, a processing agent, a coupling agent, acid dilution and a heat stabilizer. An engineering part made of the composite material disclosed by the invention is developed towards the lightweight; the composite material is beneficial to the reduction of the use quantity of the material and the reduction of the use cost of the material; and moreover, the product is green and environmental-friendly and is suitable to prepare automobile interior parts.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to an active basic magnesium sulfate whisker-modified polypropylene composite material and a preparation method thereof. technical background [0002] Polypropylene is a general-purpose plastic, but when making engineering parts such as interior and exterior parts of automobiles, its strength, stiffness and heat resistance cannot meet the requirements of the parts. At the same time, polypropylene has poor impact properties, especially poor low-temperature impact properties. Moreover, its molding shrinkage rate is large, and these shortcomings limit the application and development of polypropylene in engineering components. Therefore, at present, the materials for preparing interior and exterior parts of automobiles are mainly made of modified polypropylene filled with conventional mineral powder. The products have the advantages of good size, easy pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K13/06C08K9/06C08K9/04C08K7/08C08J5/06B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C2947/92895B29C47/0011B29C2947/92704B29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 闫溥梁山峰周素蓉
Owner ORINKO NEW MATERIAL CO LTD
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