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Glass fibre reinforced polypropylene-nylon composite material and preparation method thereof

A nylon composite material and glass fiber technology, which is applied in the field of glass fiber reinforced polypropylene-nylon composite materials, can solve the problems of affecting the performance of composite materials, the fluidity is very different, and the application is limited, and achieves high impact strength and preparation method. Simple, good mechanical properties

Inactive Publication Date: 2017-09-26
JIANGSU SHENXIANG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large difference in fluidity between polypropylene and nylon, it is difficult to get a good mixture during injection molding, which will affect the performance of composite materials and greatly limit its application in various fields.

Method used

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  • Glass fibre reinforced polypropylene-nylon composite material and preparation method thereof
  • Glass fibre reinforced polypropylene-nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention discloses a glass fiber reinforced polypropylene-nylon composite material, which comprises the following components in parts by weight: 56.8 parts of polypropylene, 20 parts of nylon, 15 parts of glass fiber, 5 parts of compatibilizer, and coupling agent 2 parts, 1 part of antioxidant, 0.2 part of auxiliary agent.

[0030] Described polypropylene is homopolypropylene and copolypropylene, and the mass ratio of described homopolypropylene and described copolypropylene is 1.2:1, and the melting index of described homopolypropylene, described copolypropylene is in Under the test conditions of 230°C and 2.16Kg, they are 3g / 10min and 30g / 10min respectively, and the melt index of the nylon is 15g / 10min under the test conditions of 230°C and 2.16Kg.

[0031] The intrinsic viscosity of the nylon is 2.0dL / g, the diameter of the glass fiber is 15 μm, the compatibilizer is dicumyl peroxide and diphenylmethane bismaleimide, and the coupling agent is A silane coupling ...

Embodiment 2

[0040] The invention discloses a glass fiber reinforced polypropylene-nylon composite material, which comprises the following components in parts by weight: 52.2 parts of polypropylene, 25 parts of nylon, 15 parts of glass fiber, 3 parts of compatibilizer and coupling agent 4 parts, 0.5 part of antioxidant, 0.3 part of auxiliary agent.

[0041] The polypropylene is homopolymerized polypropylene and copolymerized polypropylene, and the mass ratio of the homopolymerized polypropylene to the copolymerized polypropylene is 1.3:1. The melt index of the homopolypropylene and the copolymerized polypropylene are respectively 8g / 10min and 20g / 10min under the test conditions of 230°C and 2.16Kg, and the melt index of the nylon is under the test conditions of 230°C and 2.16Kg The lower is 20g / 10min, and the intrinsic viscosity of the nylon is 2.1dL / g.

[0042] The diameter of the glass fiber is 18 μm, the compatibilizer is maleic anhydride grafted polypropylene, the coupling agent is on...

Embodiment 3

[0051]The invention discloses a glass fiber reinforced polypropylene-nylon composite material, which comprises the following components in parts by weight: 40 parts of polypropylene, 35 parts of nylon, 17 parts of glass fiber, 4 parts of compatibilizer and coupling agent 2 parts, 1.5 parts of antioxidant, 0.5 part of auxiliary agent.

[0052] Described polypropylene is homopolypropylene and copolypropylene, and the mass ratio of described homopolypropylene and described copolypropylene is 1.4:1, and the melting index of described homopolypropylene, described copolypropylene is in Under the test conditions of 230°C and 2.16Kg, they are 10g / 10min and 100g / 10min respectively, and the melt index of the nylon is 20g / 10min under the test conditions of 230°C and 2.16Kg,

[0053] The intrinsic viscosity of the nylon is 2.2dL / g, the diameter of the glass fiber is 25 μm, the compatibilizer is diphenylmethane bismaleimide and maleic anhydride grafted polypropylene, the coupling agent It...

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Abstract

The invention discloses a glass fibre reinforced polypropylene-nylon composite material. The glass fibre reinforced polypropylene-nylon composite material comprises the following components in parts by weight: 40 to 60 parts of polypropylene, 20 to 50 parts of nylon, 5 to 40 parts of glass fibres, 2 to 10 parts of a compatilizer, 1 to 4 parts of a coupling agent, 0.5 to 2 parts of an antioxidant, and 0.1 to 0.2 part of an auxiliary agent. The invention also discloses a preparation method for the glass fibre reinforced polypropylene-nylon composite material. Glass fibres disclosed by the invention can be uniformly dispersed in a molten mixture; the lengths of the glass fibres are effectively prevented from being damaged; the preparation method is simple and is safe to operate; the prepared composite material is good in mechanical properties and high in impact resistance, and has good thermal deformation temperature resistance, creep resistance and size stability.

Description

technical field [0001] The invention relates to composite materials, in particular to a glass fiber reinforced polypropylene-nylon composite material. Background technique [0002] Polypropylene (PP) is a thermoplastic resin polymerized from propylene. Polypropylene is a crystalline high polymer, which has the advantages of light weight, low cost, non-toxic, odorless and high mechanical strength, and has good injection molding performance, can be blended with other materials for modification, has high environmental resistance and long service life, so Gradually replace some metals and other materials and are widely used in packaging, transportation, building materials, home appliances and other industries. However, polypropylene has poor light resistance, is easy to age, has poor impact strength at low temperatures, large shrinkage, and thick-walled products are easy to sag. According to the characteristics of polypropylene, the polypropylene composite material is prepared...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L77/00C08K13/04C08K7/14C08K5/3415C08K5/14C08J5/04
CPCC08L23/12C08J5/043C08J2323/12C08J2423/14C08K2201/003C08K2201/014C08L2201/08C08L2205/03C08L2205/035C08L2205/08C08L23/14C08L77/00C08K13/04C08K7/14C08K5/14C08K5/3415C08L51/06
Inventor 吴祥林李坤陈丁垚
Owner JIANGSU SHENXIANG ELECTROMECHANICAL
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