Glass fiber reinforced polypropylene composite material with low odor and preparation method thereof

Abstract

The invention discloses a glass fiber reinforced polypropylene composite material with low odor and a preparation method thereof. The glass fiber reinforced polypropylene composite material comprises the following components: 32-91% of polypropylene resin, 5-50% of glass fiber, 2-8% of compatilizer, 1-6% of odor inhibitor and 1-4% of other auxiliary agent. The reinforced polypropylene material with low odor is prepared by fusing, extruding and granulating the components through a double screw extruder under the temperature control condition of 220-240 DEG C. The odor inhibitor comprises 30-50% of ricinoleic acid zinc, 20-40% of metal oxide and 10-30% of a clay mineral system. The odor of the glass fiber reinforced polypropylene composite material can be inhibited through combining a physical method and a chemical method. The glass fiber reinforced polypropylene composite material prepared by the method has excellent odor performance; the odor level can be reduced below level 3; the physical property of the glass fiber reinforced polypropylene composite material per se is not influenced after the odor inhibitor is added; and the application field of the glass fiber reinforced polypropylene material in vehicle interior trim parts and a part of home appliance parts can be widened.

Description

technical field [0001] The invention belongs to the technical field of material modification, in particular to a low-odor glass fiber reinforced polypropylene (PP) composite material, and belongs to the technical field of polymer composite materials. The material is mainly used in automotive parts and home appliance parts that require high odor performance and physical properties. Background technique [0002] Modified polypropylene materials play an irreplaceable role in other materials in terms of automobile beauty, comfort, safety, anti-corrosion, light weight and large design freedom. Among many filled polypropylene materials, glass fiber reinforced PP composite materials have the advantages of high rigidity, heat resistance, chemical corrosion resistance, weather resistance and dimensional stability, and can replace copper, steel, nylon, etc. within a certain range. Used in automobiles, electrical appliances, motors, home appliances and other fields. When glass fiber ...

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Problems solved by technology

Among the retrieved patents, patents that solve the odor problem of glass fiber reinforced polypropylene composite materials are rare, and most of them focus on achieving low odor by changing the injection molding process or by physical adsorption. For example, patent KR20070014490 proposes to improve Processing methods to obtain low-odor glass fiber reinforced polymer composite materials; patent 200810039827.8 proposes to use hydrophobic molecular sieves to obtain a low-odor reinforced nylon composite material, but the effect is not ideal

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