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High-glossiness glass fiber reinforced polyamide composite material and preparation method thereof

A composite material and glass fiber technology, which is applied in the field of high-gloss glass fiber reinforced polyamide composite materials and its preparation, can solve the problems of surface floating fiber leakage and other issues

Inactive Publication Date: 2021-05-18
SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD
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Problems solved by technology

[0003] In order to overcome the above-mentioned technical defects, the purpose of the present invention is to provide high-gloss glass fiber reinforced polyamide composite material and its preparation method, adding functional color masterbatch and dispersant to the polyamide resin to solve the problem of floating fiber leakage on the surface of PA products problem, with high blackness and brightness effect, the appearance of injection molded parts is smooth and beautiful

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  • High-glossiness glass fiber reinforced polyamide composite material and preparation method thereof

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific examples.

[0019] The raw materials used in the following examples are conventional selections in the art unless otherwise stated.

[0020] Aniline black masterbatch is composed of 85-90% by weight of nylon 6, 9-13% by weight of oil-soluble nigrosine and 1-2% by weight of dispersant. The above-mentioned raw materials are mixed in proportion in a high-speed mixer for 5-10 minutes, and added to It is obtained by blending and melt-extruding in a twin-screw extruder under the conditions of a screw speed of 400-1200r / min and a processing temperature of 180-280°C; wherein the dispersant is selected from vinyl bis stearamide or PE wax.

[0021] The coupling agent is selected from γ-aminopropyl trimethoxysilane, γ-aminopropyl triethoxysilane, γ-glycidyl etheroxypropyl trimethoxysilane, γ-glycidyl etheroxypropyl triethoxy N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopr...

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Abstract

The invention discloses a high-glossiness glass fiber reinforced polyamide composite material and a preparation method thereof, wherein the high-glossiness glass fiber reinforced polyamide composite material comprises the following raw materials by mass: 55-90 parts of polyamide, 5-40 parts of glass fiber, 3-6 parts of aniline black masterbatch, 0.2-1 part of a coupling agent, 0.2-0.8 part of an antioxidant and 1-2 parts of a dispersant. The preparation method comprises the following steps: sequentially mixing the aniline black master batch and the dispersing agent, adding the components into a first side feeding port of a double-screw extruder, mixing polyamide, the coupling agent and the antioxidant, adding the mixture into a main feeding port, adding the glass fiber into a second side feeding port, melting and blending the mixture, performing extrusion, and cooling and granulating the mixture to obtain the product. The functional aniline black master batch and the dispersing agent are added into the polyamide resin, so that the problem that floating fibers on the surface of a polyamide product are exposed is solved, meanwhile, the polyamide product has a high-blackness brightness effect, and an injection molding part is smooth and attractive in appearance.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, and in particular relates to a high-gloss glass fiber reinforced polyamide composite material and a preparation method thereof. Background technique [0002] At present, glass fiber (GF) reinforced polyamide (PA) products have high strength, but the floating fibers on the surface of the products or the leakage of floating fibers are serious, and the PA material itself has low luster, which is not beautiful enough, and the black products, especially the appearance parts, are gray. The blackness is not enough, which limits the application field of glass fiber reinforced PA materials. The problem of how to avoid serious floating fibers and low gloss in the appearance of the product while ensuring the strength of the glass fiber reinforced polyamide composite material needs to be solved urgently. Contents of the invention [0003] In order to overcome the above-mentioned techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08J3/22C08J5/04C08L77/00C08K13/04C08K7/14C08K5/00
CPCC08J3/226C08J5/043C08J2477/06C08J2377/00C08K13/04C08K7/14C08K5/0041
Inventor 刘春艳王春光
Owner SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD
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