Methods of preparing polymer-organoclay composites and articles derived therefrom
申请人:Sabic Innovative Plastics IP B.V.
公开号:US08158243B2
公开(公告)日:2012-04-17
A method for preparing a polymer-organoclay composite composition comprises combining a solvent and an unexfoliated organoclay to provide a first mixture, wherein the unexfoliated organoclay comprises alternating inorganic silicate layers and organic layers, and has an initial spacing between the silicate layers; exposing the first mixture to an energized condition of a sufficient intensity and duration to increase the initial spacing of the inorganic silicate layers, to provide a second mixture; contacting the second mixture with a polymer composition so that the polymer composition fills at least one region located between at least one pair of silicate layers, wherein the polymer composition is at least partially soluble in the solvent; and removing at least a portion of the solvent from the second mixture, wherein the inorganic silicate layers remain separated by the polymer after removal of the solvent.
一种制备聚合物-有机粘土复合物组合物的方法,包括将溶剂和未剥离的有机粘土结合以提供第一混合物,其中未剥离的有机粘土包括交替的无机硅酸盐层和有机层,并具有硅酸盐层之间的初始间距;将第一混合物暴露于足够强度和持续时间的充能条件下,以增加无机硅酸盐层的初始间距,以提供第二混合物;将第二混合物与聚合物组合物接触,使聚合物组合物填充至少位于至少一对硅酸盐层之间的区域,其中聚合物组合物至少部分可溶于溶剂;从第二混合物中除去至少一部分溶剂,其中在去除溶剂后,无机硅酸盐层仍然被聚合物分离。