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Anti-floating fiber master batch, low-floating fiber glass fiber reinforced polypropylene composite material and preparation method thereof

A technology of glass fiber and composite materials, applied in the field of low floating fiber glass fiber reinforced polypropylene composite materials and its preparation, and anti-floating fiber masterbatch, which can solve the complex production process, the floating fiber problem has not been effectively solved, and the appearance cannot be satisfied Problems such as parts and batch production, etc., to achieve the effect of good fluidity, low melt mass flow rate and low crystallization temperature

Inactive Publication Date: 2018-11-30
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the serious floating fiber problem of glass fiber reinforced polypropylene composite material in the prior art, the production process is complicated, and cannot meet the requirements of appearance parts and mass production, the first purpose of the present invention is to provide a simple preparation and easy to obtain raw materials Anti-floating fiber masterbatch, to deal with the problem that the floating fiber problem of chopped glass fiber reinforced resin materials has not been effectively solved in the prior art, and at the same time, a simple production process, short production cycle, low price and environmental friendliness is proposed. The low-floating fiber glass fiber reinforced polypropylene composite material and its preparation method are used in manufacturing industries with high requirements for floating fibers such as automobiles, aerospace, and electrical appliances

Method used

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  • Anti-floating fiber master batch, low-floating fiber glass fiber reinforced polypropylene composite material and preparation method thereof
  • Anti-floating fiber master batch, low-floating fiber glass fiber reinforced polypropylene composite material and preparation method thereof
  • Anti-floating fiber master batch, low-floating fiber glass fiber reinforced polypropylene composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] 1. Coating treatment of glass fiber:

[0028] Mix 30 parts of glass fiber with 6 parts of polybutene-1 with a melt index of 0.48 through a double-roll mill, press it into a sheet with a thickness of 5mm, cool it naturally for 12 hours to make the sheet have a certain hardness, and then use a high-speed mixer Break and mix the flakes evenly to obtain small flakes with a diameter of less than 15mm, and complete the preparation process of PB-1 / GF masterbatch. Wherein, the processing temperature of the mill is 130°C.

[0029] 2. Preparation of low floating fiber glass fiber reinforced polypropylene composite material:

[0030] 59.4 parts of polypropylene with a melt index of 21.26, 3 parts of compatibilizer PP-g-MAH with a grafting rate of 0.8%, 36 parts of anti-floating fiber masterbatches treated by surface coating and 0.5 parts of lubricant PE wax, Lubricant StCa is 0.2 part, antioxidant 1010 is 0.2 part, antioxidant 168 is 0.2 part, and they are added to a high-speed ...

Embodiment 2

[0032] 1. Coating treatment of glass fiber:

[0033] Mix 30 parts of glass fiber with 6 parts of polybutene-1 with a melt index of 0.48 through a double-roll mill, press it into a sheet with a thickness of 5mm, cool it naturally for 12 hours to make the sheet have a certain hardness, and then use a high-speed mixer Break and mix the flakes evenly to obtain small flakes with a diameter of less than 15mm, and complete the preparation process of PB-1 / GF masterbatch. Wherein, the processing temperature of the mill is 130°C.

[0034] 2. Preparation of low floating fiber glass fiber reinforced polypropylene composite material:

[0035] 55.4 parts of polypropylene with a melt index of 2.8, 3 parts of compatibilizer PP-g-MAH with a grafting rate of 0.8%, 40 parts of anti-floating fiber masterbatches treated by surface coating and 0.5 parts of lubricant PE wax, Lubricant StCa is 0.2 part, antioxidant 1010 is 0.2 part, antioxidant 168 is 0.2 part, and they are added to a high-speed mi...

Embodiment 3

[0037] 1. Coating treatment of glass fiber:

[0038] Mix 15 parts of glass fiber and 10 parts of polybutene-1 with a melt index of 0.48 through a double-roller mill, press it into a sheet with a thickness of 5mm, cool it naturally for 12 hours to make the sheet have a certain hardness, and then use a high-speed mixer Break and mix the flakes evenly to obtain small flakes with a diameter of less than 15mm, and complete the preparation process of PB-1 / GF masterbatch. Wherein, the processing temperature of the mill is 130°C.

[0039] 2. Preparation of low floating fiber glass fiber reinforced polypropylene composite material:

[0040]55.4 parts of polypropylene with a melt index of 21.26, 15 parts of glass fibers, 3 parts of compatibilizer PP-g-MAH with a graft rate of 0.8%, 25 parts of anti-floating fiber masterbatches treated by surface coating and lubricant 0.5 parts of PE wax, 0.2 parts of lubricant StCa, 0.2 parts of antioxidant 1010, and 0.2 parts of antioxidant 168 are a...

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Abstract

The invention belongs to the field of macromolecular composite materials, and particularly relates to an anti-floating fiber master batch, a low-floating fiber glass fiber reinforced polypropylene composite material and a preparation method thereof. The anti-floating fiber master batch consists of glass fibers and polybutylene-1, wherein 15 to 30 parts of glass fibers, and 6 to 20 parts of polybutylene-1. The polybutylene-1 and the glass fibers are smelted to prepare the novel anti-floating fiber master batch, and the polybutylene-1 has the characteristics of high shear thinning property, goodmobility and low crystallization temperature; and since the polybutylene-1 has excellent mobility, the melt mass flow rate is low, the melt is easier to reach the surface of a mold when in injectionmolding, and an effect for covering the glass fibers can be achieved. Meanwhile, when the glass fiber reinforced polypropylene composite material is prepared, the fibers in the composite material arecoated, so that the composite material is excellent in comprehensive performance, has few floating fibers on the surface, and can be used for the production industry having relatively high requirementfor the floating fibers such as automobiles, aerospace, electric appliances and the like.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to an anti-floating fiber masterbatch, a low-floating fiber glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Glass fiber reinforced polypropylene (GFRPP) has the advantages of light weight, impact resistance, good fatigue toughness, short molding cycle, and recyclability. After it was put into use in the 1970s, it has been widely used in many fields such as electromechanical industry, anti-corrosion engineering, construction industry, aerospace, shipbuilding, and vehicles. However, in terms of engineering applications, the phenomenon of GF exposure largely limits the use of GFRPP materials. In recent years, with the improvement of the use environment and aesthetic requirements of polymer materials, people have put forward higher requirements for the floating fiber condition of the surface o...

Claims

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Application Information

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IPC IPC(8): C08L23/20C08K7/14C08L23/12C08L51/06C08J3/22C08J5/04
CPCC08J3/226C08J5/043C08J2323/12C08J2423/20C08K7/14C08K2201/003C08K2201/004
Inventor 曲敏杰徐培琦宁洋贾婷
Owner DALIAN POLYTECHNIC UNIVERSITY