公开(公告)号：US20170121511A1

公开(公告)日：2017-05-04

申请号：US14907279

申请日：2014-07-22

申请人： Junjuan LI ,  Lujun YOU ,  Solomon Hsing-Kuo TANG

发明人： Junjuan LI ,  Lujun YOU ,  Solomon Hsing-Kuo TANG

IPC分类号： C08L9/08 ,  C08J3/22 ,  C08L7/02

CPC分类号： C08L9/08 ,  C08J3/05 ,  C08J3/22 ,  C08J3/226 ,  C08J5/10 ,  C08J2307/02 ,  C08J2309/04 ,  C08J2309/08 ,  C08J2309/10 ,  C08J2321/02 ,  C08J2407/02 ,  C08J2409/04 ,  C08J2409/08 ,  C08J2409/10 ,  C08J2421/02 ,  C08L7/02 ,  C08L2310/00

摘要： The present invention relates to a process for making a polymer masterbatch with silica nanoparticles highly uniformly dispersed therein by using a stable aqueous emulsion of compatibilized silica nanoparticles, the sizes of which are mechanically reduced to nanoscales. Adequate reduction of the silica particles to nanoscales is essential for the formation of a desired emulsion of highly stability. The said emulsion of compatibilized silica nanoparticle can be easily mixed under mild conditions with a polymer in latex form, which can be high purity natural rubber, synthetic rubber and/or a blend thereof. The bifunctional organosilane coupling agent bonded-Silica nanoparticles are subsequently incorporated into the rubber polymer network during coagulation with formic acid. The inventive rubber-silica masterbatch thus obtained is useful for manufacturing rubber and other polymer composite products.