摘要 : Gaseous-process silica white is an impor-tant reinforcing filler and additive.It is ex-tensively used for reinforcing,thickeningand matting in several sectors:siliconerubber,rubber,plastics,coatings,inks,pharmaceuticals,papermakin... 展开 Gaseous-process silica white is an impor-tant reinforcing filler and additive.It is ex-tensively used for reinforcing,thickeningand matting in several sectors:siliconerubber,rubber,plastics,coatings,inks,pharmaceuticals,papermaking,foods,cos-metics and chemical machinery polishing.Foreign capital occupying thedomestic marketRequirements for environmental protectionin advanced countries arc getting more strin-gent in recent years.By contrast,the gas- 收起