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    • 4. 发明申请
    • PROCESS FOR PRODUCTION OF CLAY NANOCOMPOSITE
    • 生产粘土纳米复合材料的方法
    • US20100081730A1
    • 2010-04-01
    • US12238892
    • 2008-09-26
    • Klaus UnseldDirk van EckHans-Bernd FuchsRene Jean ZimmerClaude Ernest Felix BoesRoman Gorl
    • Klaus UnseldDirk van EckHans-Bernd FuchsRene Jean ZimmerClaude Ernest Felix BoesRoman Gorl
    • C08J5/14
    • C08L21/00B60C1/00C08J3/07C08J3/2053C08J3/215C08J2307/02C08J2309/08C08J2309/10C08J2321/02C08K9/04C08L1/02C08L3/04C08L2666/26C08L2666/04
    • The present invention is directed to a process of preparing a nanocomposite comprised of an elastomer and at least partially exfoliated, intercalated water-swellable clay, comprising the steps of (A) forming a first blend of water-swelled clay and anionic polymer particle emulsion by blending: (1) an aqueous mixture comprised of water and a multilayered water-swellable clay, exclusive of an intercalant for said clay, wherein said water-swellable clay is comprised of a plurality of stacked platelets with water-expanded galleries between said platelets, wherein said galleries contain naturally occurring cationic ion exchangeable ions therein; and (2) an elastomer latex comprising an elastomer selected from the group consisting of natural rubber, synthetic polyisoprene, polybutadiene, and styrene-butadiene rubber; (B) blending with said first blend an aqueous mixture comprised of water and from 1 to 5 percent by weight of a polar polymer selected from the group consisting of hydroxyethylcellulose, carboxymethylcellulose, carboxymethylcellulose sodium salt, starch, modified starch, gelatin, polyvinylalcohol, polyacrylic acid, polyacrylic acid salts, derivatives of polyacrylic acid, and carboxylated rubbers.
    • 本发明涉及一种制备纳米复合材料的方法,所述纳米复合材料由弹性体和至少部分剥离的插层的水溶胀性粘土组成,包括以下步骤:(A)通过以下步骤形成水溶胀粘土和阴离子聚合物颗粒乳液的第一共混物: 混合:(1)由水和多层水溶胀性粘土组成的水性混合物,不包括用于所述粘土的插入剂,其中所述水溶胀性粘土由在所述血小板之间的多个具有水膨胀图案的层叠血小板组成, 其中所述画廊中含有天然存在的阳离子可交换离子; 和(2)弹性体胶乳,其包含选自天然橡胶,合成聚异戊二烯,聚丁二烯和苯乙烯 - 丁二烯橡胶的弹性体; (B)与所述第一共混物混合由水组成的含水混合物和1-5重量%的极性聚合物,其选自羟乙基纤维素,羧甲基纤维素,羧甲基纤维素钠盐,淀粉,改性淀粉,明胶,聚乙烯醇,聚丙烯酸 酸,聚丙烯酸盐,聚丙烯酸衍生物和羧化橡胶。