High-flowability polycarbonate modified material

Abstract

The invention belongs to the technical field of high polymer materials, and provides a high-flowability polycarbonate modified material which comprises, by weight, 60-80 parts of polycarbonate, 10-25parts of polymethylpentene copolymers, 5-12 parts of acrylonitrile-styrene copolymers, 6-15 parts of ethylene-vinyl acetate copolymers, 0.2-0.6 part of halogen-free organic flame retardants, 0.3-0.8 part of lubricants, 0.2-0.7 part of antioxidants and 0.2-1 part of ultraviolet absorbents. High transparency of the material is furthest ensured, the requirements of the market for transparent plasticfurniture materials are met by high flowability, flexibility and scratch-resistant rigidity of the material, the material can be formed once by direct injection molding, the cost of the furniture production process is reduced, raw material components can be flexibly adjusted as required, and practical production requirements are more effectively met.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a modified polycarbonate material, in particular to a modified polycarbonate material with high fluidity. Background technique [0002] In recent years, transparent plastic furniture has become more and more sought after by consumers due to its various shapes, unique styles and high transparency. However, the requirements for the materials used to produce transparent furniture are extremely high: the materials themselves have high transparency, good mechanical strength and weather and aging resistance. Polycarbonate is an almost colorless glassy amorphous polymer with good optics, high Izod notched impact strength, and low creep rate under load below 100 °C. At present, it has become one of the popular raw materials for transparent plastic furniture. However, polycarbonate has a high melting temperature, high melt viscosity after melting, poor fluidity, and is prone to i...

AI Technical Summary

Problems solved by technology

At present, it has become one of the popular raw materials for transparent plastic furniture. However, polycarbonate has a high melting temperature, high melt viscosity after melting, poor fluidity, and is prone to internal stress. The finished product is easy to crack due to internal stress. And the scratch resistance is poor, and it will turn yellow when exposed to ultraviolet light for a long time

[0003] The existing technology such as Chinese patent [CN105542176A] discloses a modified polycarbonate with high fluidity and low temperature toughness. The modification of polycarbonate by reactive polydimethylsiloxane is complex in operation and high in overall cost. ; Chinese patent [CN104448760A] discloses a scratch-resistant high-gloss PC / ABS material, but PC is incompatible with ABS as an amorphous system, and it is necessary to add a compatibilizer to affect the transparency of the material

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