A kind of flame-retardant polypropylene composition and its preparation method and application

A technology of flame-retardant polypropylene and its composition, which is applied in the field of flame-retardant polypropylene composition and its preparation, can solve the problems of difficult to balance comprehensive performance, high smoke density, and insufficient toughness of halogen-free intumescent flame-retardant system, and achieve optimal The effect of industrial application prospect, reduction of odor level, and simple and easy preparation process

Active Publication Date: 2022-02-18
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently commonly used bromine-antimony system has the defect of high smoke density, and the halogen-free intumescent flame retardant system has the defect of insufficient toughness. It is difficult to balance the comprehensive performance at the same time, which is unsatisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-11 and comparative example 1-5

[0067] According to the ratio in Table 1, after weighing each component in proportion, mix each component uniformly through a high-speed mixer, and then melt extrude and granulate through a twin-screw extruder at 180-200 ° C, and dry it. A flame-retardant polypropylene composition was obtained; the vertical flame retardancy, horizontal flame retardancy, oxygen index, and smoke density of the flame-retardant polypropylene composition prepared in the examples and comparative examples were tested, and the results are listed in Table 1.

[0068] Table 1 The specific proportioning and performance results (parts by weight) of each component of the embodiment and the comparative example

[0069] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Copolymer polypropylene 80 80 80 　80 80 80 80 80 POE 5 5 5 5 5 5 5 Tris(2,3-dibromopropyl)isocyanurate 3 3 3 3 6 Tetrabromobisphenol A bis(2,...

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Abstract

The invention discloses a flame-retardant polypropylene composition and its preparation method and application, comprising components: 70-90 parts of polypropylene resin; 2-8 parts of brominated flame retardant; 1-3 parts of antimony trioxide; 0.2-1 part of high temperature initiator; 0.5-5 part of hydrotalcite; 0.5-5 part of inorganic zinc compound. The present invention uses brominated flame retardants, antimony trioxide, high temperature initiators, hydrotalcites, and inorganic zinc compounds in synergy, adding a small amount of flame retardants (2-8 parts) to make flame-retardant polymers The propylene composition reaches V-2 level for vertical combustion, A-0 level for horizontal combustion, oxygen index > 25%, smoke density ≤ 50, odor level ≤ 3.5, and the prepared flame-retardant polypropylene composition has excellent flame-retardant properties And low smoke density and odor level, can be made into various passenger car interior products according to different purposes, especially suitable for passenger car seat products, and has excellent industrial application prospects.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a flame-retardant polypropylene composition and a preparation method and application thereof. Background technique [0002] Polypropylene has become one of the most widely used general-purpose plastics because of its excellent comprehensive properties, good cost performance, and wide processing and molding conditions. Polypropylene is a typical flammable material. Its limiting oxygen index is 17-18%. It is extremely flammable and cannot self-extinguish after being ignited. With the gradual improvement of material safety requirements, polypropylene materials must be modified for flame retardancy. [0003] Flame retardants used for polypropylene are mainly divided into environmentally friendly brominated flame retardants and halogen-free flame retardants. In the existing flame-retardant modified polypropylene materials, in order to meet the requirements of halogen-free,...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C08L23/14C08L23/12C08L23/08C08K13/02C08K3/22C08K3/26C08K5/136C08K5/521C08K5/01C08K3/38C08K5/3492
CPCC08L23/14C08L23/12C08L2201/02C08K2201/005C08K2003/387
Inventor杨友强黄险波叶南飚杨霄云姜向新程文建丁明笃简思强李聪陆湛泉程书文陈平绪
OwnerKINGFA SCI & TECH CO LTD