Preparation method of free radical type flame-retardant modified polypropylene

A polypropylene and free radical technology, applied in the field of polypropylene materials, can solve the problems of lack of chemical resistance and gloss, high cost, complex production process, etc., to improve chemical resistance, facilitate processing and production, Simple craftsmanship

Pending Publication Date: 2022-01-14
甘肃诺尔达工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Polypropylene is a thermoplastic resin obtained by the polymerization of propylene. According to the position of the methyl group, it can be divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene; the methyl groups are arranged on the same side of the main chain of the molecule. It is called isotactic polypropylene, the methyl group is randomly arranged on both sides of the molecular main chain, it is called atactic polypropylene, and the methyl group is alternately arranged on bo

Method used

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[0014] In order to better understand the present invention, the technical solution of the present invention will be further described below in connection with the embodiments.

[0015] The method of preparation of a free-based flame retardant modified polypropylene of the present invention is: including the steps of:

[0016] S1: Preparing for raw materials, the required raw materials are: triethyl aluminum, titanium tetrachloride, propylene, polyphenylene sulfide, polyethylene wax, glass fiber, modified rubber, antistatic agent, antioxidant, talc powder, etc. It is configured in proportion and cleaning dust removal processing;

[0017] S2: Triethyl aluminum was added to the reaction kettle, and the temperature of the reaction kettle was provided to 15 to 30 ° C, then stirred for 20 to 25 min, and titanium tetrachloride was added to the reaction kettle, and heated to 40 to 50 EtOAc, then stirred, then stirred, then 5 to 10 ° C for 5 min, then close the reaction kettle, passing int...

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Abstract

The invention discloses a preparation method of free radical type flame-retardant modified polypropylene. The preparation method comprises the following steps: preparing raw materials, preparing triethyl aluminum, titanium tetrachloride, propylene, polyphenylene sulfide, polyethylene wax, glass fibers, modified rubber, an antistatic agent, an antioxidant, talcum powder and the like in proportion, and sequentially processing according to procedures to finally obtain the flame-retardant modified polypropylene. The obtained flame-retardant modified polypropylene has tensile strength, bending strength, impact resistance, chemical resistance and high glossiness, has an anti-static effect, can delay or inhibit the oxidation process of the polypropylene, is low in raw material cost, and is beneficial to production and processing.

Description

technical field [0001] The invention belongs to the technical field of polypropylene materials, and in particular relates to a preparation method of free radical flame-retardant modified polypropylene. Background technique [0002] Polypropylene is a thermoplastic resin obtained by the polymerization of propylene. According to the position of the methyl group, it can be divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene; the methyl groups are arranged on the same side of the main chain of the molecule. It is called isotactic polypropylene, the methyl group is randomly arranged on both sides of the molecular main chain, it is called atactic polypropylene, and the methyl group is alternately arranged on both sides of the molecular main chain, it is called syndiotactic polypropylene. The production process of propylene is complex and costly, which is not conducive to processing and production. At the same time, the tensile st...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L23/12C08L81/02C08L23/06C08K7/14C08K3/34C08F110/06C08F4/642
CPCC08L9/06C08F110/06C08L2201/08C08L2201/04C08L23/12C08L81/02C08L23/06C08K7/14C08K3/34C08F4/6421
Inventor 王建秋李俊超王轩
Owner 甘肃诺尔达工贸有限公司
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