Reinforced-level PC/PBT blend alloy with metallic lustre

Abstract

The invention discloses a reinforced-level PC / PBT blend alloy with metallic lustre. The blend alloy comprises the following components in percentage by mass: 40%-60% of PC, 20%-40% of PBT, 5%-10% of a filler intensifier, 3%-8% of a flexibilizer, 1%-3% of pearl powder, 0.5%-2% of a stabilizer, 1%-4% of a compatilizer, 0.1%-1.5% of triphenyl phosphite, 0.1%-0.5% of antioxygen and 0.1%-1% of a lubricant. The reinforced-level PC / PBT blend alloy disclosed by the invention has the beneficial effects that the blend alloy has the respective excellent performance of the PC and the PBT, and has such excellent mechanical performance, processing performance and ageing performance as excellent notch impact strength, tension strength, bending strength and modulus of elasticity in static bending, good metallic lustre is provided on the surface of the blend alloy, metallic material can be substituted in a certain range, and the production cost is effectively lowered, and the blend alloy has high practical value and prospect on the aspects of automobiles, household appliances, mechanical equipment and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a reinforced grade PC / PBT blended alloy with metallic luster. Background technique [0002] Polycarbonate (PC) and polybutylene terephthalate (PBT) are general-purpose engineering plastics. PC has excellent performance, especially high impact strength, ranking first among engineering plastics, good creep resistance, high glass transition temperature, can be used continuously in the range of 120 ° C ~ 130 ° C, has good electrical insulation and dimensional stability ; But PC has high melt viscosity, poor fluidity, poor solvent resistance and poor wear resistance. PBT is a thermoplastic engineering plastic with a fast crystallization rate, which has excellent solvent resistance and good melt fluidity; however, PBT has a low glass transition temperature, insufficient high-temperature rigidity, and high notch sensitivity. Therefore, the blending modification of PC and PBT...

AI Technical Summary

Problems solved by technology

PC has excellent performance, especially high impact strength, ranking first among engineering plastics, good creep resistance, high glass transition temperature, can be used continuously in the range of 120 ° C ~ 130 ° C, has good electrical insulation and dimensional stability ; But PC has high melt viscosity, poor fluidity, poor solvent resistance and poor wear resistance

PBT is a thermoplastic engineering plastic with a fast crystallization rate, which has excellent solvent resistance and good melt fluidity; however, PBT has a low glass transition temperature, insufficient high-temperature rigidity, and high notch sensitivity