Steric stabilized siloxane hybrid acrylic polymer ( SSPA) dispersion was prepared by surfactant-free emulsion polymerization with thiol group terminated polyvinyl alcohol ( PVA-SH) as protective colloid. 以分子链一端为巯基的聚乙烯醇(PVA-SH)为保护胶体,合成了空间稳定的硅氧烷改性丙烯酸酯聚合物乳液。
JD 99 has strong plug removal and dispersion ability to colloid, asphaltenes ( ASPH) and paraffin etc., it has viscosity reducing effect to crude oil. JD&99对胶质、沥青质和蜡质等有机堵塞物具有很强的解堵能力和分散能力,并对原油具有一定的降粘作用。
Based on the physicochemical conceptions of dispersion system, dispersion phase and dispersion media, the wastewater body was considered as a composite tri phase dispersion system composed of coarse, colloid and molecules dispersion systems. 应用了分散体系、分散相、分散介质等物理化学概念,将污水水体视为复合三元分散体系,即粗分散体系、胶体分散体系和分子分散体系。