Preparation method of precipitation-resistant halogen-free flame retardant special for polypropylene

A technology of precipitation resistance and flame retardant, which is applied in the field of flame retardancy, can solve the problems of failure to reach RTI level, lower flame retardancy of polymers, and poor mechanical properties of PP, etc., to achieve reduced octabromoether precipitation rate, strong mechanical properties, The effect of good compatibility

Inactive Publication Date: 2020-09-18
山东迈特新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a large amount of flame retardant additives are precipitated from the polymer material, the flame retardant performance of the polymer will be greatly reduced, and the required RTI level cannot be achieved.
[0004] Researchers at home and abroad have used techniques such as compounding with inorganic fillers and surface modification to treat octabromoether. Although the problems of easy precipitation and poor mechanical properties of octabromoether in polypropylene have been improved to a certain extent, the effect is not ideal.
The serious precipitation after compounding of octabromoether and PP, the poor mechanical properties of PP after compounding, and the problems of aging resistance are still the bottleneck problems that plague the development of the industry

Method used

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  • Preparation method of precipitation-resistant halogen-free flame retardant special for polypropylene

Examples

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Effect test

Embodiment 1

[0026] Example 1 A preparation method of a special precipitation-resistant halogen-free flame retardant for polypropylene

[0027] A special precipitation-resistant halogen-free flame retardant for polypropylene, comprising the following raw materials in parts by weight: 90 parts of layered silicate intercalation modified octabromoether, 5 parts of flame retardant synergist, and 5 parts of surface modifier part; the flame retardant synergist is aluminum diethyl hypophosphite; the surface modifier is silane KH550;

[0028] The layered silicate intercalation modified octabromoether, in parts by weight, includes the following raw materials: 100 parts of octabromoether, 15 parts of layered silicate, 5 parts of surfactant, 1 part of intercalation modifier share;

[0029] The octabromoether is bis(2,3-dibromopropyl) ether of tetrabromobisphenol A.

[0030] Described phyllosilicate is montmorillonite;

[0031] Described tensio-active agent is sodium octadecyl sulfate;

[0032] Th...

Embodiment 2

[0040] Example 2 A preparation method of a special precipitation-resistant halogen-free flame retardant for polypropylene

[0041] A special precipitation-resistant halogen-free flame retardant for polypropylene, comprising the following raw materials in parts by weight: 70 parts of layered silicate intercalation modified octabromoether, 20 parts of flame retardant synergist, 3 parts of surface modifier part; the flame retardant synergist is melamine pyrophosphate; the surface modifier is silane KH550;

[0042] The layered silicate intercalation modified octabromoether includes the following raw materials in parts by weight: 100 parts of octabromoether, 20 parts of layered silicate, 5 parts of surfactant, 1 part of intercalation modifier share;

[0043] The octabromoether is bis(2,3-dibromopropyl) ether of tetrabromobisphenol A.

[0044] The layered silicate is attapulgite powder;

[0045] Described tensio-active agent is sodium octadecyl sulfate;

[0046] The intercalatio...

Embodiment 3

[0054] Example 3 A preparation method of a special precipitation-resistant halogen-free flame retardant for polypropylene

[0055] A special precipitation-resistant halogen-free flame retardant for polypropylene, comprising the following raw materials in parts by weight: 80 parts of layered silicate intercalation modified octabromoether, 30 parts of flame retardant synergist, and 1 surface modifier part; the flame retardant synergist is silicon dioxide; the surface modifier is silane KH550;

[0056] The layered silicate intercalation modified octabromoether includes the following raw materials in parts by weight: 100 parts of octabromoether, 5 parts of layered silicate, 5 parts of surfactant, 1 part of intercalation modifier share;

[0057] The octabromoether is bis(2,3-dibromopropyl) ether of tetrabromobisphenol A.

[0058] The layered silicate is kaolin;

[0059] Described tensio-active agent is sodium octadecyl sulfate;

[0060] The intercalation modifier is cetyltrimet...

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Abstract

The invention discloses a precipitation-resistant halogen-free flame retardant special for polypropylene and a preparation method thereof. The halogen-free flame retardant is prepared from, by weight,70-90 parts of phyllosilicate intercalation modified octabromo ether, 1-30 parts of a flame retardant synergist and 1-5 parts of a surface modifier, and the phyllosilicate intercalation modified octabromo ether is prepared from the following raw materials in parts by weight: 100 parts of octabromo ether, 1 to 20 parts of phyllosilicate, 3 to 8 parts of a surfactant and 1 to 3 parts of an intercalation modifier. The prepared flame-retardant polypropylene material can reach UL94-V0 (1.6 mm), the precipitation-resistant effect is good, and the mechanical property of the prepared composite material is excellent.

Description

technical field [0001] The invention relates to the technical field of flame retardancy, in particular to a precipitation-resistant halogen-free flame retardant special for polypropylene and a preparation method thereof. Background technique [0002] With its light weight, non-toxicity, corrosion resistance and good electrical insulation, PP is widely used in electrical appliances, chemicals, automobiles and other industries. However, the limiting oxygen index of PP is only 17%, which is extremely flammable, which limits its application in some fields. Therefore, it is of great significance to improve the flame retardancy of PP. [0003] Octabromoether, also known as tetrabromobisphenol A bis(2,3-dibromopropyl) ether, is an additive flame retardant in polymer flame retardancy, and is often used in polypropylene (PP), polyethylene (PE), polybutene and many polyolefin copolymers for flame retardancy. Its molecular structure contains aliphatic bromine and aromatic bromine. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/02C08K9/04C08K5/06C08K5/5313C08K5/544C08K5/3492C08K3/36C08L23/12
CPCC08K3/36C08K5/06C08K5/34928C08K5/5313C08K5/544C08K9/02C08K9/04C08L2201/02C08L2201/22C08L23/12
Inventor 郭建树赵震谷正王立隋金永王盛海
Owner 山东迈特新材料科技有限公司
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