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Flame-retardant polypropylene plastic and preparation method thereof

A flame retardant polypropylene, polypropylene technology, applied in the field of polypropylene plastics, can solve the problems of low tensile strength and impact resistance, unfavorable processing and production, easy to burn, etc., to increase flame retardancy and heat resistance, Low cost of raw materials and improved impact resistance

Inactive Publication Date: 2020-09-11
QINGDAO HAIER NEW MATERIAL R&D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, industrially produced polypropylene is usually used to make plastics for decoration. The production process of traditional polypropylene plastics is complex and costly, which is not conducive to processing and production. At the same time, the tensile strength and impact resistance of traditional polypropylene plastics are low, which is not conducive to users. use; in addition, traditional polypropylene materials do not have flame retardancy and heat resistance, are extremely flammable and extremely harmful

Method used

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  • Flame-retardant polypropylene plastic and preparation method thereof

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Effect test

Embodiment 1

[0036] A kind of flame-retardant polypropylene plastic, the mass percentage of its raw materials is: propylene 16%, EPDM rubber 25%, glass fiber 20%, titanium tetrachloride 10%, triethylaluminum 4%, talc Powder 10%, inorganic aluminum hydroxide flame retardant 3%, silane coupling agent 10%, antioxidant 1% and catalyst 1%.

[0037] Flame-retardant polypropylene plastics are prepared by the following steps:

[0038] (1) Take raw materials according to the ratio of the above-mentioned components, wherein the volume of triethylaluminum accounts for about 1 / 3rd of the reactor capacity;

[0039] (2) Add the weighed triethylaluminum into the reactor, set the temperature at 25°C, and stir slowly for 10 minutes; then add titanium tetrachloride into the reactor, raise the temperature to 35°C, and stir slowly; keep the temperature constant change, slowly add propylene to the reactor while stirring, seal the reactor, and feed hydrogen until the solution in the reactor turns white and pro...

Embodiment 2

[0045] A flame-retardant polypropylene plastic, the mass percentage of each component of its raw materials is: 20% propylene, 22% EPDM rubber, 16% glass fiber, 14% titanium tetrachloride, 3% trichloride Ethyl aluminum, 15% talcum powder, 2% flame retardant, 7% coupling agent, 0.5% antioxidant and 0.5% catalyst.

[0046] Flame-retardant polypropylene plastics are prepared by the following steps:

[0047] (1) Take raw materials according to the ratio of the above-mentioned components, wherein the volume of triethylaluminum accounts for about 1 / 3rd of the reactor capacity;

[0048](2) Add the weighed triethylaluminum into the reaction kettle, set the temperature at 20°C, and stir slowly for 10 minutes; then add titanium tetrachloride into the reaction kettle, raise the temperature to 30°C, and stir slowly; keep the temperature constant change, slowly add propylene to the reactor while stirring, seal the reactor, and feed hydrogen until the solution in the reactor turns white and...

Embodiment 3

[0054] A kind of flame-retardant polypropylene plastic, the mass percentage of its raw material components is: 22% propylene, 26% EPDM rubber, 15% glass fiber, 16% titanium tetrachloride, 2% trichloride Ethyl aluminum, 12% talc, 1% flame retardant, 5% coupling agent, 0.5% antioxidant and 0.5% catalyst.

[0055] Flame-retardant polypropylene plastics are prepared by the following steps:

[0056] (1) Take raw materials according to the ratio of the above-mentioned components, wherein the volume of triethylaluminum accounts for about 1 / 3rd of the reactor capacity;

[0057] (2) Add the weighed triethylaluminum into the reaction kettle, set the temperature at 30°C, and stir slowly for 10 minutes; then add titanium tetrachloride into the reaction kettle, raise the temperature to 40°C, and stir slowly; keep the temperature constant change, slowly add propylene to the reactor while stirring, seal the reactor, and feed hydrogen until the solution in the reactor turns white and produce...

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Abstract

The invention relates to the technical field of polypropylene plastics. The invention relates to the field of polypropylene plastics, in particular to a flame-retardant polypropylene plastic and a preparation method thereof, wherein the polypropylene plastic comprises the following components in percentage by mass: propylene, ethylene propylene diene monomer, glass fiber, titanium tetrachloride, triethyl aluminum, talcum powder, a flame retardant, a coupling agent, an antioxidant and a catalyst, the sum of the contents of the components being 100%. The preparation method comprises the following steps: step 1, selecting raw materials; 2, preparing polypropylene; 3, mixing and stirring the raw materials; 4, manufacturing plastic; 5, carrying out low-temperature air cooling; step 6, inspecting and packaging a finish product. The polypropylene plastic prepared by the preparation method not only has certain tensile strength and bending strength and greatly improved impact resistance, but also has good flame retardance and heat resistance, and is safe and reliable; the preparation process is simple and rigorous, the raw material cost is low, the production cost is greatly saved, and production and processing are facilitated.

Description

technical field [0001] The invention relates to the technical field of polypropylene plastics, in particular to a flame-retardant polypropylene plastic and a preparation method thereof. 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. [0003] At present, industrially produced polypropylene is usually used to make plastics for decoration. The production process of traditional polypropylene pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/12C08K13/04C08K7/14C08K3/34C08K3/22C08F110/06C08F4/54
CPCC08L23/16C08F110/06C08L2201/02C08L2201/08C08K2003/2227
Inventor 王恩明徐永伟李巍巍赵凤雯王乾张秀文谭伟宏李伟
Owner QINGDAO HAIER NEW MATERIAL R&D CO LTD
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