A kind of polypropylene composite material and preparation method thereof
A composite material, polypropylene technology, applied in the field of polypropylene composite material and its preparation, can solve the problems of inability to achieve, poor compatibility of polymer matrix, etc.
Active Publication Date: 2022-07-12
WANHUA CHEM GRP CO LTD +1
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Problems solved by technology
[0007] However, during use, long carbon chain polyamide elastomers have the problem of poor compatibility with the polymer matrix
For the preparation of some polypropylene materials with relatively excellent properties, it is impossible to carry out simple conventional modification on them
Method used
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preparation example Construction
[0089] In each embodiment and comparative example, the preparation method of polypropylene composite material comprises the following steps:
[0090] (1) Dry the long carbon chain polyamide thermoplastic elastomer at 70° C. for 6 hours and set it aside for use.
[0091] Add the dried long carbon chain polyamide thermoplastic elastomer, antioxidant, maleic anhydride grafted polypropylene, lubricant and 1 / 2 amount of polypropylene matrix resin into the high mixer for mixing, the mixing time is 8min, and the rotating speed is 8 minutes. The mixing temperature is 60 rpm, and the mixing temperature is 35 ° C; then the high molecular weight maleic anhydride functionalized liquid polybutadiene is heated to 50 ° C, and then added to the plunger pump connected with the seventh section of the extruder for feeding, and the high-molecular-weight maleic anhydride functionalized liquid polybutadiene The obtained mixture I was fed into the extruder through the main feeding port for the first...
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Abstract
The invention belongs to the field of polymer composite materials, and in particular relates to a polypropylene composite material and a preparation method thereof. The polypropylene composite material is prepared from the raw materials of the following components, and the dosage of each component is the total amount of the polypropylene composite material. By weight: Polypropylene Matrix Resin, 45-90wt%, Long Carbon Chain Polyamide Thermoplastic Elastomer, 5-50wt%, High Molecular Weight Maleic Anhydride Functionalized Liquid Polybutadiene, 0.2wt%-2wt%, Antioxidant , 0.1wt%-2wt%, maleic anhydride grafted polypropylene, 0.2wt%-2wt%, lubricant, 0.2wt%-2wt%. The polypropylene composite can have excellent low temperature toughness and scratch resistance at the same time.
Description
technical field [0001] The invention belongs to the field of polymer composite materials, in particular to a polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is one of the most widely used cheap general-purpose plastics. It has many excellent properties, such as wide source, low price, low density, non-toxicity, easy processing, etc., so it is widely used in automobiles, home appliances, electronic and electrical and other fields. However, one of the biggest shortcomings of polypropylene materials is that the low temperature toughness is poor. Generally, the notched Izod impact strength of pure copolymerized polypropylene without toughening modification is less than 8kJ / m at -30°C. Even with better filling and toughening modified polypropylene composites, its notched Izod impact strength at -30°C is less than 10kJ / m 2 . In some specific fields and areas, polypropylene is required to have better low tempera...
Claims
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IPC IPC(8): C08L23/12C08L87/00C08L51/06C08L51/00C08K5/134C08K5/526
CPCC08L23/12C08L87/005C08L2205/025C08L2205/035C08L51/06C08L51/003C08K5/1345C08K5/526
Inventor 许广业徐卓言杨伟翔颜晓捷李静张红刘江岩
Owner WANHUA CHEM GRP CO LTD