Preparation method for carbon-plastic fiber composite material

Abstract

A preparation method for a carbon-plastic fiber composite material comprises the steps: (1) selecting carbon powder, baking to dry and storing at a dry place before mixing, and selecting plastic coming from one of high density polyethylene, polyvinyl chloride, polypropylene, PET, ABS and ultrahigh molecular weight polyethylene; (2) getting carbon powder, thermoplastic plastic, an auxiliary agent and basalt fiber according to the ratio of 80:16:3:1, 70:26:3:1, 60:36:3:1 or 50:46:3:1; and (3) pouring the mixture obtained in the step (2) into an extruder, conveying hot blank plates formed through extrusion by a rotating conveyor, and cooling and cutting during conveying. The material is wide in raw material source, simple in manufacturing technology, simple in equipment, low in cost, stable in dimension, excellent in flame resistance, resistant to mildew and corrosion, good in pest resistance and recyclable.

Description

technical field [0001] The invention relates to composite material technology, in particular to a method for preparing a carbon-plastic fiber composite material. Background technique [0002] With the extensive use of solid wood composite flooring in recent years, the indoor environmental problems caused by its formaldehyde release have gradually been paid attention to. Indoor environmental pollution is mainly caused by four pollutants, formaldehyde, benzene, ammonia, and radioactive substances. Among them, Led by formaldehyde, a large amount of adhesives are used in various types of boards, and formaldehyde will always be released. Formaldehyde can cause chronic poisoning of the human body, autonomic disorders and other diseases, and it poses a great threat to the occupational health of personnel working in indoor environments. After research, it is found that bamboo charcoal board has a strong adsorption effect on formaldehyde. Using bamboo charcoal's high adsorption of fo...

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Problems solved by technology

[0005] Since the carbon powder material is polar and has strong hydrophilicity, and most thermoplastic resins are non-polar polymer compounds with hydrophobicity, the compatibility between the two is poor, and the bonding of the interface is relatively poor. The force is very small, it is difficult to combine, and it will also affect the mechanical properties of carbon-plastic products; since the two-phase composite interface often becomes a stress concentration area, the key to improving the mechanical properties of composite materials is to improve the compatibility of the interface; at present, most domestic wood-plastic enterprises The processing technology adopted is derived from the modification of plastics. It uses wood materials as plastic fillers, and the wood materials and plastics are forcibly combined by external pressure or glue. The defect of this technology is that the polarity of the unplasticized The compatibility between wooden materials and non-polar plastics is poor, and the combination of plastics and wooden materials is not tight, resulting in a decline in material quality; second, it is difficult to extrude materials with wooden materials as fillers, the quality of products is not high, and the scrap rate is high. The interface modifier can create a strong interfacial bond between the resin and the surface of the carbon powder, and at the same time reduce the water absorption of the carbon powder, improve the compatibility and dispersion of the carbon powder and the resin, so it can significantly improve the mechanical properties of the composite material

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