Glass fiber reinforced flame retardant polypropylene material for household appliance products and preparation method thereof

A technology for flame-retardant polypropylene and household appliances, which is applied in the field of glass fiber-reinforced flame-retardant polypropylene materials for household appliances and its preparation. It can solve the problems of poor flame retardancy and achieve good flame retardancy, low cost, and high impact strength. Good results

Active Publication Date: 2014-08-13
GUANGDONG JUSHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, polypropylene itself is extremely flammable. After adding glass fiber, the flame retardancy is even worse. The polypropylene used in household appliances must not only achieve certain mechanical properties, but also have a high impact on flame retardancy and stability under high temperature conditions. There is also a high requirement for fire resistance, so the flame retardant modification of glass fiber reinforced flame retardant polypropylene has very important application value

Method used

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  • Glass fiber reinforced flame retardant polypropylene material for household appliance products and preparation method thereof

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preparation example Construction

[0024] The present invention also proposes a method for preparing the above-mentioned glass fiber reinforced flame-retardant polypropylene material for household electrical appliances, comprising the following steps:

[0025] 1) After the brominated flame retardant, antimony trioxide, flame retardant synergist, toughening agent, compatibilizer, lubricant, ultraviolet absorber and antioxidant are prepared according to the proportions, pre-mix in a low-speed mixer 1min;

[0026] 2) Add the high impact polypropylene copolymer into the low-speed mixer, and mix it with the material after step 1) in the low-speed mixer for 1 min, and then feed the material from the main feeding system to the twin-screw extruder;

[0027] 3) Add alkali-free continuous long glass fiber into the twin-screw extruder from the fiber feeding port of the twin-screw extruder;

[0028] 4) The material after step 3) is mixed in a twin-screw extruder with a screw diameter of 30-75 mm and an aspect rat...

Embodiment 1

[0031] The glass fiber reinforced flame-retardant polypropylene material used in the household electrical appliances of the present embodiment is composed of the following raw materials measured in parts by weight:

[0032] 40 parts of high impact copolymer polypropylene resin, 20 parts of alkali-free continuous long glass fiber, 6 parts of brominated flame retardant, 3 parts of antimony trioxide, 2 parts of flame retardant synergist, 3 parts of compatibilizer, toughening 0 part of the agent, 0.5 part of the lubricant, 0.2 part of the ultraviolet absorber, and 0.3 part of the antioxidant.

Embodiment 2

[0034] The glass fiber reinforced flame-retardant polypropylene material used in the household electrical appliances of the present embodiment is composed of the following raw materials measured in parts by weight:

[0035] 43 parts of high impact copolymer polypropylene resin, 21 parts of alkali-free continuous long glass fiber, 8 parts of brominated flame retardant, 2.7 parts of antimony trioxide, 2.7 parts of flame retardant synergist, 4 parts of compatibilizer, toughening 1 part of lubricant, 0.5 part of lubricant, 0.2 part of ultraviolet absorber, and 0.3 part of antioxidant.

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Abstract

The present invention relates to a glass fiber reinforced flame retardant polypropylene material for household appliance products, and belongs to the field of modified polypropylene plastic. The material comprises the following raw materials, by weight: a high-impact-resistance copolymer polypropylene resin, a bromine-based flame retardant agent, antimony trioxide, a flame retardant synergist, alkali-free continuous long glass fibers, a compatibility agent, a toughening agent, a lubricant, a UV absorber and an antioxidant. The present invention provides the glass fiber reinforced flame retardant polypropylene material with higher tensile strength, bending modulus and hardness as well as high impact-resistance, low molding shrinkage, aging resistance and the like. The glass fiber reinforced flame retardant polypropylene material has a high heat deformation temperature, good oxidation resistance at high temperature, and the flame retardant performance up to the level of UL94 V-2, and passes the glow wire test of GWIT: 700/3.0. The glass fiber reinforced flame retardant polypropylene material has a low cost and a light weight, and can be used instead of metal or plastic material to produce the household appliance products which need flame retardation and high temperature resistance.

Description

technical field [0001] The invention relates to a flame retardant polypropylene material, in particular to a glass fiber reinforced flame retardant polypropylene material for household appliances and a preparation method thereof. Background technique [0002] Polypropylene is widely used in the fields of home appliances and vehicles due to its excellent comprehensive properties, good chemical stability, good processability and relatively low price. However, unmodified polypropylene has shortcomings such as low tensile strength, flexural modulus, low hardness, poor heat resistance, large molding shrinkage, easy aging, and flammability, which seriously affects the use of polypropylene. [0003] Reinforced polypropylene is a mixture of polypropylene and glass fiber or inorganic filler. Glass fiber or inorganic filler improves the tensile strength, flexural strength and flexural modulus of polypropylene, and greatly increases the heat distortion temperature of polypropylene....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L51/06C08K13/04C08K7/14C08K3/22C08K5/136C08K5/03C08K5/3492B29B9/06B29C47/92B29C48/92
CPCC08K7/14B29B7/7461B29B9/12B29C2947/9218B29B7/46B29B9/06B29B9/14B29B7/90C09K21/08B29C47/92B29B7/72B29C47/6087B29C48/92B29C2948/92619B29C2948/92704C08K2201/014C08L23/14C08L2201/02C08L2201/08C08L2205/025C08L2205/06C08L51/06C08K13/04C08K3/2279C08K5/136C08K5/03C08K5/34922B29C48/40B29C48/625B29C2948/9218C08L23/10
Inventor 沈旭渠沈寒知张翼翔姚杏梅陈锐彬李玲玉
Owner GUANGDONG JUSHI CHEM CO LTD
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