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期刊专利论文

橡胶改性聚苯乙烯树脂用于电镀物品

来源:互联网2015年12月16日

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Rubber-modified polystyrene resin composition for making an electroplatable article 

United States Patent(美国专利号): 8835559

Abstract: A rubber-modified polystyrene resin composition for making an electroplatable article which has a sectioned layer defining a unit area, said rubber-modified polystyrene resin composition comprising: a resin matrix; occlusion rubber particles dispersed in said resin matrix, said occlusion rubber particles including a rubber base particle in which vinyl cyanide-styrene copolymer having a size not smaller than 0.05 .mu.m is occluded and said occlusion rubber particles having an average graft thickness ranging from 100 .ANG. to 280 .ANG. and an average particle size ranging from 0.35 .mu.m to 0.8 .mu.m; and non-occlusion rubber particles dispersed in said resin matrix, said non-occlusion rubber particles including a rubber base particle being free of vinyl cyanide-styrene copolymer or in which vinyl cyanide-styrene copolymer having a size less than 0.05 .mu.m is occluded; wherein a total sectional area ratio of said occlusion rubber particles to said non-occlusion rubber particles in the unit area ranges from 1.1 to 14.

there are the following problems when the mouldings made of conventional ABS resin are electroplated:

(1) There are pinholes formed on the surface of the electroplated mouldings so that the appearance of the electroplated mouldings is not satisfactory. 

(2) The etching property of the mouldings made of the conventional ABS resin is inferior so that the adhesion of the electroplating layer to the surface of the mouldings is insufficient and thus the electroplating layer peels easily. 

(3) The mechanical strength of the mouldings made of the conventional ABS resin is reduced after etching and electroplating so that the application of the mouldings is limited. 

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