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Flame retardant polypropylene material

A technology of flame-retardant polypropylene and homopolypropylene, which is applied in the direction of electrical components, circuits, battery pack components, etc., can solve the problems of damaging the mechanical properties of polypropylene materials, failing to meet environmental protection performance requirements, and improving anti-aging properties , Improve the appearance performance, improve the effect of barrier property

Inactive Publication Date: 2011-05-04
LUOYANG CITY HEZHIYANG MACROMOLECULE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the compounding of flame retardant polypropylene with halogen elements and inorganic antimony compounds is a very mature technology, but it cannot meet the environmental protection performance requirements; if other environmentally friendly flame retardants such as red phosphorus are used, the polypropylene material will be seriously damaged mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0035] The application of the polypropylene material of the present invention in materials for lithium battery shells consists of the following components by weight percentage: 25% high-fluidity homopolypropylene, 25% high-fluidity copolymerized polypropylene, 20% flame retardant, inorganic Strengthening agent 20%, barrier additive 6.4%, antioxidant and nucleating agent 0.6%, heat-resistant enhancer 0.5%, composite pigment 0.5%, internal and external lubricant 2%; stir and mix all kinds of raw materials before heating, heating The temperature is controlled at 150-210°C, and then extruded by a twin-screw extruder, then pelletized, then water-cooled, separated by a vibrating screen, and air-dried.

[0036] Above-mentioned embodiment produces product performance as follows:

[0037] project

Flame retardant samples

Polypropylene blank sample

Analytical method

Melt index, g / 10min

1.27

2.5

GB3682-83

Tensile yield strength, MPa

58.3

...

Embodiment example 2

[0041] The application of the polypropylene material of the present invention in the lithium battery shell material is composed of the following components by weight percentage: 40% high fluidity homopolypropylene, 25% high fluidity copolymerized polypropylene, 22% flame retardant, inorganic Strengthening agent 10%, barrier additive 1%, antioxidant and nucleating agent 0.3%, heat-resistant enhancer 0.5%, composite pigment 0.2%, internal and external lubricant 1%; mix all kinds of raw materials fully and then heat, heat The temperature is controlled at 150-210°C, and then extruded by a twin-screw extruder, then pelletized, then water-cooled, separated by a vibrating screen, and air-dried.

[0042] Adopt above-mentioned embodiment, the product produced has following properties:

[0043] project

Flame retardant samples

Polypropylene blank sample

Analytical method

Melt index, g / 10min

4.3

2.5

GB3682-83

Tensile yield strength, MPa

37....

Embodiment example 3

[0047] The application of the polypropylene material of the present invention in the lithium battery shell material is composed of the following components by weight percentage: 35% high-fluidity homopolypropylene, 25% high-fluidity copolymerized polypropylene, 25% flame retardant, inorganic Strengthening agent 10%, barrier additive 2%, antioxidant and nucleating agent 0.5%, heat-resistant enhancer 2%, composite pigment 0.3%, internal and external lubricant 0.2%; stir and mix all kinds of raw materials before heating, heating The temperature is controlled at 150-210°C, and then extruded by a twin-screw extruder, then pelletized, then water-cooled, separated by a vibrating screen, and air-dried.

[0048] Adopt above-mentioned embodiment, the product produced has following properties:

[0049] project

Flame retardant samples

Polypropylene blank sample

Analytical method

Melt index, g / 10min

1.85

2.5

GB3682-83

Tensile yield strength, MPa...

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PUM

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Abstract

The invention discloses a flame retardant polypropylene material, relating to the technical field of high molecule plastics. The flame retardant polypropylene material comprises the following compositions in percentage by weight: 25-50 percent of high fluidity homo polypropylene, 25-50 percent of high fluidity propylene copolymer, 10-33 percent of flame retardant, 5-30 percent of inorganic strengthening agent, 1-10 percent of barrier additive, 0.1-3 percent of heat resistance strengthening agent, 0.1-4 percent of antioxygen and nucleating agent, 0.1-3 percent of compound pigment and 1-5 percent of internal and external lubricant. The flame retardant polypropylene material reaches V0 grade flame retardation property without lowering the mechanical performance of the material and has good heat resistance and good anti-seep performance.

Description

technical field [0001] The invention relates to the technical field of polymer plastics, in particular to the application of a flame-retardant polypropylene material and its products. [0002] Background technique [0003] In recent years, with the improvement of polypropylene production process and the improvement of polymerization process, great progress has been made in the development and application of high fluidity polypropylene products; polypropylene injection molding products are widely used in packaging, transportation, home appliances, automobiles, offices and other fields application. [0004] Polypropylene products are divided into homopolymerization and copolymerization, and copolymerization is divided into block copolymerization and random copolymerization. When the high fluidity homopolypropylene is impacted by low temperature, the toughness is poor, the molding shrinkage is large, and the parts are easy to warp and deform, but its fluidity is good, the ten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08K13/02C08K13/04H01M2/02
CPCY02E60/10
Inventor 周春怀
Owner LUOYANG CITY HEZHIYANG MACROMOLECULE MATERIAL
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