Low floating fiber glass fiber enhanced flame resistant polypropylene material

A flame-retardant polypropylene and low-floating fiber technology, which is applied in the field of low-floating fiber glass fiber reinforced flame-retardant polypropylene materials, can solve the problems of low strength of weld lines, poor dispersion of flame retardants, and influence on surface appearance, etc., to achieve increased plasticity and disperse, improve the exhaust effect, improve the effect of poor appearance

Inactive Publication Date: 2018-07-06
SUZHOU SILVER AGE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the glass fiber reinforced flame retardant polypropylene prepared by the above method needs to add a large amount of flame retardant to have a good flame retardant effect. If the flame retardant is poorly dispersed, there will be large-sized agglomerated particles, which is not conducive to the infiltration of the glass fiber and affects the surface appearance.
Therefore, the appearance of the product made by this method is poor, and there are often appearance problems such as a large number of floating fibers and flow marks on the surface, and it is easy to cause problems such as low weld line strength and poor surface spraying performance, which limits the application of this PP material. Especially for external parts products with high appearance requirements

Method used

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  • Low floating fiber glass fiber enhanced flame resistant polypropylene material
  • Low floating fiber glass fiber enhanced flame resistant polypropylene material

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Experimental program
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Effect test

Embodiment 1

[0020] A low-floating glass fiber reinforced flame-retardant polypropylene material in this embodiment includes the following components in parts by weight: 40 parts of polypropylene resin, 6 parts of thermoplastic elastomer, 30 parts of special-shaped glass fiber, and 20 parts of flame retardant part, 3 parts of compatibilizer, 0.6 part of lubricant and 0.4 part of antioxidant.

[0021] Among them, the polypropylene resin is block copolymerized PP with a melt index of 80g / 10min; the thermoplastic elastomer is POE; the special-shaped glass fiber is chopped glass fiber, the cross-section of the special-shaped glass fiber is elliptical, and the special shape ratio is 4; the flame retardant is A mixture of decabromodiphenylethane and antimony trioxide at a mass ratio of 3:1; the compatibilizer is PP-g-MAH; the lubricant is EBS; the antioxidant is antioxidant 1010 and antioxidant 168 by mass Mixture ratio 1:2.

[0022] A method for preparing the above-mentioned low-floating fiber...

Embodiment 2

[0024] A low-float glass fiber reinforced flame-retardant polypropylene material in this embodiment comprises the following components in parts by weight: 45 parts of polypropylene resin, 4 parts of thermoplastic elastomer, 20 parts of special-shaped glass fiber, and 25 parts of flame retardant 5 parts, 5 parts of compatibilizer, 0.5 parts of lubricant and 0.5 parts of antioxidant.

[0025] Among them, the polypropylene resin is block copolymerized PP with a melt index of 100g / 10min; the thermoplastic elastomer is EPDM; the special-shaped glass fiber is chopped glass fiber, the cross-section of the special-shaped glass fiber is elliptical, and the special shape ratio is 5; the flame retardant is A mixture of decabromodiphenylethane and antimony trioxide at a mass ratio of 4:1; the compatibilizer is POE-g-MAH; the lubricant is oxidized polyethylene wax; the antioxidant is antioxidant 1076, antioxidant DSTP is a mixture of 1:1 by mass ratio.

[0026] A method for preparing the ...

Embodiment 3

[0028] A low-floating glass fiber reinforced flame-retardant polypropylene material in this embodiment includes the following components in parts by weight: 35.6 parts of polypropylene resin, 8 parts of thermoplastic elastomer, 25 parts of special-shaped glass fiber, and 28 parts of flame retardant 4 parts, 4 parts of compatibilizer, 0.8 part of lubricant and 0.6 part of antioxidant.

[0029] Among them, the polypropylene resin is homopolymer PP with a melt index of 65g / 10min; the thermoplastic elastomer is EVA; A mixture of brominated diphenylethane and antimony trioxide in a mass ratio of 4:1; the compatibilizer is PE-g-MAH; the lubricant is stearic acid; the antioxidant is antioxidant 1010, antioxidant 168 and DSTP is a mixture of 1:1:1 by mass.

[0030] A method for preparing the above-mentioned low-floating fiber glass fiber reinforced flame-retardant polypropylene material, comprising the following steps: firstly mixing polypropylene resin, thermoplastic elastomer, flam...

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Abstract

The invention discloses a low floating fiber glass fiber enhanced flame resistant polypropylene material. The material is characterized by comprising the following components in parts by weight: 30 to65 parts of polypropylene resin, 4 to 10 parts of thermoplastic elastomer, 10 to 40 parts of special-shaped glass fiber, 15 to 30 parts of a flame retardant, 1 to 6 parts of a compatilizer, 0.3 to 1part of a lubricant, an 0.1 to 0.6 part of an antioxidant. The material has the advantages that the ratio of length to diameter of an adopted double-screw extruder is higher than that of a common extruder, plastification and dispersion of raw materials not subjected to fiber adding are improved, the exhausting effect is improved, the fact that the melt has better wettability to glass fiber is guaranteed, the problem of poor appearance of the conventional glass fiber enhanced flame resistant polypropylene material is improved, and other performance defects caused by floating fiber and trace leaving are overcome.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a low-floating glass fiber reinforced flame-retardant polypropylene material. Background technique [0002] Polypropylene (PP) is widely used in household appliances, new energy battery components and other fields due to its excellent comprehensive performance, chemical stability, processing and molding performance and relatively low price. However, unmodified polypropylene has disadvantages such as low tensile strength, flexural modulus, low hardness, poor heat resistance, large molding shrinkage, easy aging, and flammability, which seriously affect the scope of use of polypropylene. As people pay more attention to the hazards of fire, the concepts of fire prevention and flame retardancy have been proposed in many household appliances and automotive plastics, and people have increased their investment in research on enhancing flame-retardant PP materials. The existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L23/08C08L23/16C08L53/02C08L51/06C08L23/30C08K13/04C08K7/14C08K5/03C08K3/22C08K5/134C08K5/526C08K5/372C08K5/098C08J5/04
CPCC08J5/043C08J2353/00C08J2423/08C08J2423/16C08J2451/06C08K3/2279C08K5/03C08K5/098C08K5/134C08K5/372C08K5/526C08K7/14C08K13/04
Inventor 嵇家栋李文波彭志宏
Owner SUZHOU SILVER AGE TECH CO LTD
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