Polypropylene composition with high surface tension and preparation method thereof

A polypropylene composition and high surface technology, applied in the field of polypropylene composition and its preparation, can solve the problems of damage to the properties of the polypropylene composition, large addition amount of polar modifier, complicated preparation process, etc., and achieve improved spray coating. The effect of improving compatibility, improving compatibility and broad application prospects

Active Publication Date: 2020-04-24
ORINKO NEW MATERIAL CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, it is necessary for the present invention to provide a polypropylene composition with high surface tension and a preparation method thereof, by adding a polar additive diethanolamine with a long-chain alkyl group and a polar modification auxiliary in the polypropylene composition Auxiliaries, whose addition amount is low, can greatly reduce the impact on the basic properties of polypropylene compositions, and the combined effect of diethanolamine with long-chain alkyl groups and polar modification auxiliary agents can significantly improve the performance of polypropylene compositions. Surface tension and wettability solve the technical problems in the prior art that the amount of polar modifier added is large, the performance of the polypropylene composition is greatly damaged and the preparation process is complicated

Method used

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  • Polypropylene composition with high surface tension and preparation method thereof
  • Polypropylene composition with high surface tension and preparation method thereof

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preparation example Construction

[0037] The invention also discloses a preparation method of a polypropylene composition with high surface tension, comprising the following steps:

[0038] According to the mass ratio of water: silane coupling agent is 1 ~ 2: 1, the silane coupling agent solution is prepared, and at the same time, the filler is put into the stirring container, the temperature is set at 100 ~ 110 ° C, the speed is 600 ~ 800 rpm, according to the silane coupling agent The addition ratio is 1.0-1.5wt%, and the silane coupling agent solution is sprayed on the filler at least three times. After each spraying, the stirring container is started to treat for 6-8 minutes, and the treated filler is fully dried at 60-80°C to obtain Surface-modified fillers, multiple sprays and high-speed mixing can distribute the silane coupling agent solution evenly on the filler surface to the maximum extent, thereby significantly improving the combination of fillers and matrix resins and improving the performance of mo...

Embodiment 1

[0054] 15 parts of M60T, 31 parts of K7227, 20 parts of 1215C, 20 parts of modified talcum powder, 10 parts of toughening agent, 1 part of self-made polar modification aid with polar groups, 2 parts of maleic anhydride grafted Polypropylene, 0.2 parts of 1010, 0.2 parts of 168, 0.2 parts of EBS, and 0.4 parts of carbon black were put into a high-speed mixer with a speed of 600 R / min and mixed for 6 minutes, and the mixed materials were put into a twin-screw extruder to extrude and pelletize. The material rate is 450kg / h, the screw speed is 500rpm, the temperature setting of each zone of the extruder is 180, 210, 220, 210, 210, 200, 210, 210, 200°C, and the vacuum degree is maintained at -0.06~-0.08MPa;

Embodiment 2

[0056] 15 parts of M60T, 30 parts of K7227, 20 parts of 1215C, 20 parts of modified talcum powder, 10 parts of toughening agent, 2 parts of self-made polar modification additives with polar groups, 2 parts of maleic anhydride grafted Polypropylene, 0.2 parts of 1010, 0.2 parts of 168, 0.2 parts of EBS, and 0.4 parts of carbon black were put into a high-speed mixer with a speed of 600 R / min and mixed for 6 minutes, and the mixed materials were put into a twin-screw extruder to extrude and pelletize. The material rate is 450kg / h, the screw speed is 500rpm, the temperature setting of each zone of the extruder is 180, 210, 220, 210, 210, 200, 210, 210, 200°C, and the vacuum degree is maintained at -0.06~-0.08MPa;

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Abstract

The invention discloses a polypropylene composition with high surface tension and a preparation method thereof. The polypropylene composition is prepared from a polypropylene mixture, a polar modifierwith a polar group, a polar modification auxiliary aid, a filler, a flexibilizer and a functional aid, wherein the polar modifier with the polar group is diethanol amine with a long-chain alkyl group, and the polar modification auxiliary agent is at least one of maleic anhydride modified polypropylene, acrylic acid modified polypropylene and polyvinyl alcohol. The polypropylene composition disclosed by the invention has high surface tension and wettability, can obviously improve the spraying property of a polypropylene injection molding part, simplify the spraying process and reduce the spraying cost, can meet the performance requirements of automobile part manufacturers at home and abroad, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a polypropylene composition with high surface tension and a preparation method thereof. Background technique [0002] Polypropylene has excellent mechanical properties and low processing temperature. Various functional polypropylene compositions can be obtained through various modification methods. The material molding process is simple and cost-effective, so it is widely used in automotive interior and exterior decoration, household appliances And other aspects, has been the focus of research in the field of polymer materials. Although polypropylene has excellent overall performance, it is a non-polar material with low surface tension, which makes it subject to certain resistance in the application area that requires painting or bonding, such as automobile bumpers, which are generally painted parts , if polypropylene is used for direct injection molding, due to poor adhesion, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L29/04C08L51/06C08K13/06C08K9/06C08K3/34C08K5/17
CPCC08L23/14C08L2205/035C08L2205/025C08L23/12C08L51/06C08K13/06C08K9/06C08K3/34C08K5/17C08L29/04
Inventor 邵之杰张奎周海蒋文远闫溥
Owner ORINKO NEW MATERIAL CO LTD
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