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Production method of polypropylene resin with high melt index, high impact resistance and high rigidity

A polypropylene resin and a production method technology are applied in the field of polypropylene production to achieve the effects of increasing melt index, ensuring impact strength and rigidity, and increasing crystallization rate

Inactive Publication Date: 2019-12-17
NORTH HUAJIN CHEM IND CO LTD
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Problems solved by technology

[0005] The present invention proposes a production method of high melting index, high impact resistance and high rigidity polypropylene resin to solve the technical problem of how to produce high melting index, high impact resistance and high rigidity polypropylene resin

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  • Production method of polypropylene resin with high melt index, high impact resistance and high rigidity
  • Production method of polypropylene resin with high melt index, high impact resistance and high rigidity

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Embodiment Construction

[0033] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] This embodiment proposes a production method of high melting point, high impact resistance and high rigidity polypropylene resin, its principle is as follows figure 1 As shown, the Spheripol second-generation process technology combined with two series loop reactors and a gas phase copolymerization tank reactor is used. The method specifically includes the following steps:

[0035] S1, polypropylene particles are activated in the precontact tank 1 by main catalyst, cocatalyst triethylaluminum TEAL and cocatalyst electron donor DONOR (wherein, the feeding amount is controlled by instrument mass flowmeter respectively, triethylaluminum / The electron donor ratio is 1-30, and the co-catalyst compound electron donor ...

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Abstract

The invention belongs to the technical field of polypropylene production, and particularly relates to a production method of polypropylene resin with high melt index, high impact resistance and high rigidity. A hydrogen regulating method is adopted and special additives are used for meeting the requirements of high melt index, high rigidity and high impact resistance, secondary modification is notinvolved, the product performance is good, and the cost is low. The performance of the polypropylene resin product with high melt index, high impact resistance and high rigidity can reach the foreignadvanced level, and the continuous and stable operation and large-scale production of the device can be ensured.

Description

technical field [0001] The invention belongs to the technical field of polypropylene production, and in particular relates to a production method of high melting point, high impact resistance and high rigidity polypropylene resin. Background technique [0002] Human society pays more and more attention to energy consumption, which determines the development direction of new energy utilization and energy saving and consumption reduction. As an important field of energy consumption, the continuous improvement of its manufacturing technology makes automobiles gradually develop in the direction of lightweight. A large amount of polypropylene resin Parts are applied to automobiles, and the development trend of large-scale one-time molding of plastic parts puts forward more stringent requirements on the performance of raw material polypropylene products. [0003] The production method of high-melt index, high-impact, and high-rigidity polypropylene resins on the market at this sta...

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Application Information

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IPC IPC(8): C08F210/16C08F2/38
CPCC08F210/16C08F2/38
Inventor 付传玉刘永瑞廉强孙海峰郭俊巍张彬梁中国孙永生王永齐
Owner NORTH HUAJIN CHEM IND CO LTD
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