Environment-friendly flame-retardant reinforced polypropylene resin and preparation method thereof

A polypropylene resin and flame retardant technology, applied in the field of polypropylene resin, can solve the problems of insignificant improvement in thermodynamic properties, poor dimensional stability, and low thermal deformation temperature of ABS flame retardant modified resin, so as to reduce personal and Environmental safety hazards, improving mechanical properties, and the effect of high mechanical properties

Inactive Publication Date: 2018-09-25
浙江富丽新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to its poor creep resistance, low melting point, poor dimensional stability, low thermal deformation temperature, low temperature brittleness and other defects, ABS restricts its application as an engineering stress material, and its enhanced modification can further expand its use. scope, many considerations, it is bound to be the general trend to enhance the flame retardant modification of polypropylene resin
[0003] At present, bromine / antimony flame retardants are mainly used in the ABS flame retardant system, and the best flame retardant effect is organic bromide. For example, Chinese patent application CN 2015105511972 discloses a flame retardant reinforced ABS composition, which consists of 120 parts- 130 parts of ABS resin, 30-40 parts of glass fiber, 20-30 parts of flame retardant, 10-15 parts of flame retardant synergist, 10-15 parts of compatibilizer and 0.5-1 part of additives, wherein the flame retardant is selected from decabromodiphenylethane and brominated polystyrene, and the flame retardant synergist is selected from antimony trioxide and antimony pentoxide, and its thermal performance has been improved compared with that of the unmodified ABS has been greatly improved, but its heat distortion temperature is only between 75-92 ° C, which still needs to be improved for the application of engineering plastics as mechanical components; Chinese patent application CN 2014107902711 discloses a flame-retardant Reinforced ABS composite material, composed of ABS resin 5-80%, AS resin 0-60%, flame retardant masterbatch 5-50%, glass fiber 5-40%, compatibilizer 2-8%, antioxidant 0.1- 1%, coupling agent 0.1-1%, processing aid 0.1-1%, wherein the flame retardant contained in the flame retardant masterbatch is a brominated flame retardant, specifically selected from decabromodiphenylethane, brominated tris Oxyzine, brominated epoxy and tetrabromobisphenol A, which mainly modify the flexibility of ABS resin by adding AS resin to form ABS-AS alloy system, but this formula does not improve the thermodynamic properties of ABS flame retardant modified resin. obvious

Method used

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  • Environment-friendly flame-retardant reinforced polypropylene resin and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The raw materials are divided into three groups of A, B and C, and the raw materials of each group are weighed according to the following proportions by weight:

[0024] Component A: 100 parts of ABS resin, 20 parts of decabromodiphenylethane, 6 parts of antimony trioxide, 1 part of pentaerythritol stearate, 0.4 part of antioxidant;

[0025] Component B: 15 pieces of glass fiber cut yarn, the length is 30-50mm;

[0026] Component C: 0.2 parts of γ-mercaptopropyltriethoxysilane and 0.1 part of γ-aminopropyltriethoxysilane.

[0027] The process of using the above raw materials to prepare modified polypropylene resin: first put components B and C in a high-speed mixer for 20 minutes of premixing. The gamma-mercaptopropyl group and gamma-aminopropyl group in the silane coupling agent in the embodiment can be well compatible with ABS resin, and can also increase resin and resin, resin and glass fiber cut yarn, resin and other components The cross-linking effect between the...

Embodiment 2

[0029] The raw materials are divided into three groups of A, B and C, and the raw materials of each group are weighed according to the following proportions by weight:

[0030] Component A: 100 parts of ABS resin, 18 parts of 1,2-bis(tetrabromophthalimide)ethane, 7 parts of antimony trioxide, 1.5 parts of pentaerythritol stearate, 0.5 parts of antioxidant ;

[0031] Component B: 20 ​​pieces of glass fiber cut yarn, the length is 30-50mm;

[0032] Component C: 0.2 parts of γ-(methacryloyloxy)propyltrimethoxysilane, 0.3 parts of γ-glycidyl ether propyltrimethoxysilane; γ- (Methacryloyloxy) propyl and γ-glycidyl ether propyl can be well compatible with ABS resin, and at the same time can increase the relationship between resin and resin, resin and glass fiber cut yarn, resin and other components The cross-linking effect improves the stability of the three-dimensional network structure of the modified resin, which is conducive to maintaining or improving the mechanical propertie...

Embodiment 3

[0035] The raw materials are divided into three groups of A, B and C, and the raw materials of each group are weighed according to the following proportions by weight:

[0036] Component A: 100 parts of ABS resin, 18 parts of decabromodiphenylethane, 8 parts of antimony trioxide, 1 part of pentaerythritol stearate, 0.5 part of antioxidant;

[0037] Component B: 25 pieces of glass fiber cut yarn, the length is 30-50mm;

[0038] Component C: 0.3 parts of γ-(3,2 glycidoxy)methyltrimethoxysilane, 0.3 parts of γ-glycidyl ether propyltrimethoxysilane; γ-(3,2 glycidoxy) methyl group and γ-glycidyl ether propyl group can be well compatible with ABS resin, and can increase resin and resin, resin and glass fiber cut yarn, resin and other The cross-linking effect between the components improves the stability of the three-dimensional network structure of the modified resin, thereby helping to maintain or improve the mechanical properties of the resin product.

[0039] The preparation pr...

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Abstract

The invention discloses environment-friendly flame-retardant reinforced polypropylene resin and a preparation method thereof. The environment-friendly flame-retardant reinforced polypropylene resin comprises, by weight, 100 parts of polypropylene resin, 20-30 parts of flame retardant, 4-8 parts of flame retardant synergist, 10-30 parts of reinforcing filler, 0.4-2 parts of lubricating agent, 0.2-1part of antioxidant and 0.2-2 parts of coupling agent. The preparation method includes: using the coupling agent to perform surface pretreatment on the reinforcing filler, adding the polypropylene resin, the flame retardant, the flame retardant synergist, the lubricating agent and the antioxidant into the pretreated reinforcing filler, evenly mixing, and performing extrusion granulation. The environment-friendly flame-retardant reinforced polypropylene resin and the preparation method thereof have the advantages that the interaction between the reinforcing filler and the resin is increased byusing the coupling agent to pretreat the reinforcing filler, and material mechanical performance is further increased; the flame-retardant reinforced polypropylene resin is excellent in flame retardance and high in mechanical performance, the thermal deformation temperature of the flame-retardant reinforced polypropylene resin is increased, and accordingly the application range and operation performance stability of the flame-retardant reinforced polypropylene resin are increased.

Description

technical field [0001] The invention relates to a polypropylene resin, in particular to a modified polypropylene resin and a preparation method thereof. Background technique [0002] Polypropylene (ABS) is one of the most commonly used general-purpose plastics. Its comprehensive properties are very good, and it has been more and more widely used in automobiles, home appliances, electrical and other industries. However, polypropylene is a very flammable polymer material, and its oxygen index is only about 18. Considering the application of ABS in many fields, it is particularly important to modify it for flame retardancy. In addition, due to its poor creep resistance, low melting point, poor dimensional stability, low thermal deformation temperature, low temperature brittleness and other defects, ABS restricts its application as an engineering stress material, and its enhanced modification can further expand its use. With many considerations, it will be the general trend to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/06C08K9/06C08K7/14C08K5/03C08K3/22C08K5/3415
CPCC08K3/2279C08K5/03C08K5/3415C08K7/14C08K9/06C08K13/06C08K2201/004C08L23/12
Inventor 栾国俊蔡新焱钟卫平符和根叶立军
Owner 浙江富丽新材料有限公司
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