Fiber reinforced type PP (polypropylene) material and preparation method thereof

Abstract

The invention discloses a fiber reinforced type PP (polypropylene) material which is prepared from the following raw materials in parts by weight: 65-75 parts of polypropylene, 26-32 parts of glass fiber, 4-5 parts of elastomer metallocene polyethylene, 0.8-1 part of modified nano titanium dioxide, 8-10 parts of modified conductive carbon black, 6-7 parts of a compatibilizer and 0.5-0.7 part of aplastic processing aid. The invention further discloses a preparation method of the PP material. As polypropylene is adopted as a substrate of the PP material, and the elastomer metallocene polyethylene is adopted as a toughening agent, high tension strength of the composite material can be maintained while the impact strength of the composite material is improved by using the substances; as the modified nano titanium dioxide is adopted as an anti-aging agent, not only are a great amount of ultraviolet rays shielded, but also the aging resistance of the material can be improved, and in addition, PP crystallization can be promoted; and as the modified conductive carbon black is adopted as an anti-electrostatic agent, an anti-electrostatic function can be brought into play sufficiently, andthus dust adherence on the surface of a PP material product can be remarkably reduced.

Description

technical field [0001] The invention belongs to the field of PP composite materials, and in particular relates to a fiber-reinforced PP material and a preparation method thereof. Background technique [0002] PP is a semi-crystalline material, including homopolymer type and copolymer type. Both homopolymer type and copolymer type PP materials have excellent resistance to moisture absorption, acid and alkali corrosion resistance, and solubility resistance. The reinforced PP materials generally used at present, in order to ensure the high strength of the material, are reinforced with ordinary glass fibers. For example, the Chinese invention patent with the patent number CN201510047695.3 discloses a continuous long glass fiber-reinforced PP material against copper damage and its preparation Method, the PP material includes the following raw materials in parts by weight: polypropylene, continuous long glass fiber, compound type halogen-free flame retardant, anti-copper agent, co...

AI Technical Summary

Problems solved by technology

Since the continuous long glass fiber used will be oriented along the flow direction, the shrinkage in the flow direction and the shrinkage perpendicular to the flow direction are very different, and the shrinkage imbalance causes warping

[0003] Reinforced PP material has good application in household appliances due to its good processing performance, tensile strength and high temperature resistance, such as used in air conditioner fan blades. Deformation has high requirements. If the deformation is large, the air output of the product will be different, and the dynamic balance of the fan blades will also fail to pass. At the same time, considering that the fan blades of the wind wheel are generally used outdoors, in high-temperature and high-humidity environments Under the use environment, the material will also appear aging phenomenon, and the mechanical properties of the material will deteriorate, which will have great hidden dangers to the mechanical properties and use of the fan blades of the wind turbine.

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