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Hybrid fiber reinforced polypropylene composite material

A composite material and hybrid fiber technology, which is applied in the field of hybrid fiber reinforced polypropylene composite materials, can solve the problems of poor tensile strength and toughness, and achieve good high temperature wear resistance, high elastic modulus, and good room temperature wear resistance Effect

Inactive Publication Date: 2017-02-15
JIANGSU SHENXIANG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiber reinforced materials have the properties of elastic materials, high strength, but poor tensile strength and toughness

Method used

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  • Hybrid fiber reinforced polypropylene composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The invention discloses a hybrid fiber-reinforced polypropylene composite material, which comprises the following components in terms of mass fraction:

[0026] 10% glass fiber, 50% carbon fiber, 2% aramid fiber, 5% bamboo fiber, 5% basic magnesium sulfate whisker, 10% polypropylene, 5% functional polypropylene copolymer, 3% epoxy resin, binder 2%, filler 8%.

[0027] The binder is 1 wt% of nitrile modified phenolic resin and 1 wt% of rubber powder, and the filler is a mixture of pyrophyllite powder, barium sulfate, potassium feldspar and kyanite.

[0028] The glass fiber is a continuous alkali-free glass fiber with a diameter of 15-30 μm, the polypropylene is a homopolypropylene; the functional polypropylene copolymer is a polypropylene / polyvinylpyrrolidone block copolymer, which melts The index is 2.8-7.5g / min under the test conditions of 230°C and 2.16Kg, and the mass percentage of polyvinylpyrrolidone in the functional polypropylene copolymer is 60%.

Embodiment 2

[0030] The invention discloses a hybrid fiber-reinforced polypropylene composite material, which comprises the following components in terms of mass fraction:

[0031] Glass fiber 30%, carbon fiber 10%, aramid fiber 5%, bamboo fiber 10%, basic magnesium sulfate whisker 10%, polypropylene 15%, functional polypropylene copolymer 5%, epoxy resin 5%, binder 3%, filler 7%.

[0032] Described binder is the nitrile modified phenolic resin of 2wt% and the rubber powder of 1wt%, and described filler is pyrophyllite powder, barium sulfate, potassium feldspar, kyanite, aluminum oxide, iron oxide, graphite powder. mixture.

[0033] The glass fiber is a continuous alkali-free glass fiber with a diameter of 15-30 μm, and the polypropylene is a copolymerized polypropylene; the functional polypropylene copolymer is a polypropylene / polyvinylpyrrolidone block copolymer, and its melt index Under the test conditions of 230° C. and 2.16 Kg, it is 2.8-7.5 g / min, and the mass percent content of po...

Embodiment 3

[0035] The invention discloses a hybrid fiber-reinforced polypropylene composite material, which comprises the following components in terms of mass fraction:

[0036] 20% glass fiber, 20% carbon fiber, 5% aramid fiber, 7% bamboo fiber, 13% basic magnesium sulfate whisker, 11% polypropylene, 3% functional polypropylene copolymer, 6% epoxy resin, binder 8%, filler 7%.

[0037] The binder is 5wt% nitrile modified phenolic resin and 3wt% rubber powder, and the filler is a mixture of pyrophyllite powder, barium sulfate, potassium feldspar, aluminum oxide and iron oxide.

[0038] The glass fiber is a continuous alkali-free glass fiber with a diameter of 15-30 μm, and the polypropylene is a mixture of homopolypropylene and copolymerized polypropylene; the functional polypropylene copolymer is polypropylene / polyvinylpyrrolidone embedded The segment copolymer has a melt index of 2.8-7.5g / min under the test conditions of 230°C and 2.16Kg, and the polyvinylpyrrolidone mass percentage i...

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Abstract

The invention discloses a hybrid fiber reinforced polypropylene composite material. The hybrid fiber reinforced polypropylene composite material comprises, by mass, 10 to 30% of glass fiber, 10 to 50% of carbon fiber, 2 to 5% of aramid fiber, 5 to 15% of bamboo fiber, 5 to 25% of basic magnesium sulfate whisker, 10 to 30% of polypropylene, 2 to 5% of a functional polypropylene copolymer, 3 to 6% of epoxy resin, 2 to 8% of a binder, and 5 to 30% of a filler. According to a preparation method, the self-made functional polypropylene copolymer is added as a high molecular surfactant, so that the surface tension of the hybrid fiber reinforced polypropylene composite material is increased obviously, and interfacial compatibility of polypropylene resin with glass fiber is improved; the hybrid fiber reinforced polypropylene composite material possesses relatively high elasticity modulus, tensile strength, and toughness; and material application range is widened.

Description

technical field [0001] The invention relates to a polypropylene composite material, in particular to a polypropylene composite material reinforced by hybrid fibers. Background technique [0002] Hybrid composites refer to composite materials made by reinforcing the same matrix or multiple matrixes with two or more reinforcements. Hybrid composites can be seen as the mutual compounding of two or more fiber or particle reinforced composites. According to the matrix, hybrid composites can be divided into metal-based hybrid composites, ceramic-based hybrid composites, resin-based hybrid composites, and hybrid composites composed of multiple matrices. According to the reinforcement, it can be divided into hybrid fiber composites, hybrid particle composites and fiber and particle hybrid composites. When there are more than one kind of reinforcement and matrix, hybrid composites are called hyperhybrid composites. [0003] Hybrid composite materials are ideal materials for aviati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L87/00C08L97/02C08K13/04C08K7/08C08K7/14C08K7/06C08G81/02
CPCC08L23/12C08G81/024C08K2201/003C08L23/14C08L2205/035C08L2205/16C08L87/005C08L97/02C08K13/04C08K7/08C08K7/14C08K7/06
Inventor 杨根山李坤陈丁垚范广宏任明伟陈国松
Owner JIANGSU SHENXIANG ELECTROMECHANICAL
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