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Polypropylene composite material and preparation method thereof

A technology of composite materials and polypropylene, which is applied in the field of polypropylene composite materials and its preparation, can solve the problems of short fiber retention length and achieve the effect of improving mechanical strength

Inactive Publication Date: 2019-02-15
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a polypropylene composite material, through the surface modification treatment of basalt fiber, combined with extrusion process and LFT fiber infiltration preparation process, the prepared polypropylene composite material overcomes Solved the problem of short fiber retention length of basalt fiber in polypropylene material in the prior art

Method used

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  • Polypropylene composite material and preparation method thereof
  • Polypropylene composite material and preparation method thereof
  • Polypropylene composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The polypropylene composite material in the present embodiment is made up of following components by weight:

[0026]

[0027] Among them, the melt flow rate of polypropylene is 60g / 10min (loading condition 230°C, 2.16kg), the particle size of silica is 1μm, and the above raw materials are all commercially available products.

[0028] Concrete preparation steps are as follows:

[0029] (1) Modification of basalt fiber: soak basalt fiber in 2% acetic acid aqueous solution for 3 hours, take it out and dry to obtain basalt fiber with preliminary surface modification; the mass ratio is glycidyl ether epoxy resin: Graphene oxide: KH550=96:2:2 The hybrid slurry formulated is coated on the basalt fiber with preliminary surface modification, and dried to obtain the modified basalt fiber;

[0030] (2) Preparation of polypropylene composite material: Add polypropylene, PP grafted maleic anhydride, POE, calcium stearate, antioxidant 1010, antioxidant 168 and silicon dioxide in...

Embodiment 2

[0032] The polypropylene composite material in the present embodiment is made up of following components by weight:

[0033]

[0034] Among them, the melt flow rate of polypropylene is 30g / 10min (loading condition is 230°C, 2.16kg), the particle size of silicon dioxide is 25μm, and the above raw materials are all commercially available products.

[0035] Concrete preparation steps are as follows:

[0036] (1) Modification of basalt fiber: soak basalt fiber in 5% acetic acid aqueous solution for 2 hours, take it out and dry to obtain basalt fiber with preliminary surface modification; the mass ratio is glycidyl ether epoxy resin: Graphene oxide: the hybrid slurry prepared by KH550=92:4:4 is coated on the basalt fiber with preliminary surface modification, and dried to obtain the modified basalt fiber;

[0037] (2) Preparation of polypropylene composite material: Add polypropylene, POE grafted maleic anhydride, PE, calcium stearate, antioxidant 1010, antioxidant 168 and sili...

Embodiment 3

[0039] The polypropylene composite material in the present embodiment is made up of following components by weight:

[0040]

[0041]

[0042] Among them, the melt flow rate of polypropylene is 90g / 10min (loading condition 230°C, 2.16kg), the compatibilizer mixture is a mixture of PP grafted maleic anhydride and POE grafted maleic anhydride, and the particle size of silica is 75 μm , the above raw materials are commercially available products.

[0043] Concrete preparation steps are as follows:

[0044] (1) Modification of basalt fibers: soak basalt fibers in 7% acetic acid aqueous solution for 6 hours, take them out and dry to obtain basalt fibers with preliminary surface modification; the mass ratio is glycidyl ether epoxy resin: Graphene oxide: KH560=88:6:6 The hybrid slurry formulated is coated on the basalt fiber with preliminary surface modification, and dried to obtain the modified basalt fiber;

[0045] (2) Preparation of polypropylene composite material: Accor...

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Abstract

The invention discloses a polypropylene composite material. The polypropylene composite material comprises modified basalt fiber, polypropylene, a compatibilizer, a toughening agent, a processing aidand silicon dioxide. Through modification of the surface of the basalt fiber, an interfacial bonding force between the basalt fiber and a polypropylene matrix is enhanced. The invention further discloses a preparation method of the polypropylene composite material. Through the combination of an extrusion technology and an LFT fiber infiltrating preparation technology, a long basalt fiber and polypropylene composite material with long fiber retention length is prepared; the polypropylene composite material prepared by the preparation method has the fiber length of 10-15mm, so that the preparedpolypropylene composite material has improved comprehensive properties such as stretching, bending and impact.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a widely used polymer material prepared by the polymerization of propylene. It is usually a translucent, colorless solid, odorless and non-toxic. Due to its regular structure and high crystallization, its melting point can be as high as 167°C . Heat-resistant, corrosion-resistant, with good mechanical properties, electrical properties, chemical and physical mechanical properties, and excellent molding performance. Low density, is the lightest general-purpose plastic. However, pure polypropylene materials have disadvantages such as brittle performance at low temperature, low surface energy, and poor compatibility with fillers, which limit the application fields of polypropylene. [0003] Basalt fiber is a green and environmentally friendly mineral fiber becau...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08K9/06C08K9/04C08K9/02C08K7/10
CPCC08L23/12C08K7/10C08K9/02C08K9/04C08K9/06C08K9/08C08K2201/003C08L2205/03C08L2205/035C08L51/06
Inventor 李飞周海康兴宾石阳阳夏洋李荣群李春忠张玲王庚超
Owner ORINKO NEW MATERIAL CO LTD
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