Synergistic and stable ASA sizing agent emulsion stabilized by cooperation of hectorite and polyvinylpyrrolidone

一种锂皂石与聚乙烯吡咯烷酮协同稳定的asa施胶剂乳液

Abstract

本发明涉及一种锂皂石与聚乙烯吡咯烷酮协同稳定的ASA施胶剂乳液,属于造纸施胶剂乳化技术领域。其中的聚乙烯吡咯烷酮一方面,能引发锂皂石的微弱絮聚,从而使锂皂石颗粒的亲水性降低、对ASA的亲和性提高,促使锂皂石吸附于ASA-水界面,在ASA油滴周围形成更为连续的颗粒膜;另一方面,聚乙烯吡咯烷酮能直接吸附在ASA-水界面上,包裹在锂皂石颗粒层和ASA油滴表面形成稳定的机械屏障,从而有效防止ASA从包裹层中渗出,阻止了ASA的水解;而且,该机械屏障能与水紧密结合,能有效防止ASA小液滴之间的聚集。因此,本发明的锂皂石与聚乙烯吡咯烷酮协同稳定的ASA施胶剂的稳定性有显著提高。
The invention relates to an ASA sizing agent emulsion stabilized by cooperation of hectorite and polyvinylpyrrolidone, belonging to the technical field of emulsification of sizing agents for papermaking. On one hand, polyvinylpyrrolidone can initiate weak flocculation of hectorite, so that the hydrophilcity of hectorite particles is reduced, the affinity of ASA is improved, hectorite is promoted to be adsorbed to an ASA-water interface, and continuous granular membranes are formed at the peripheries of the ASA oil drops; on the other hand, polyvinylpyrrolidone can be directly adsorbed to the ASA-water interface and is arranged on the surfaces of the hectorite particle layer and the ASA oil drops in a coating manner to form a stable mechanical barrier, so that the ASA is effectively prevented from bleeding out of the coating layer, and the hydrolysis of ASA is prevented. Moreover, the mechanical barrier can be tightly combined with water, and aggregation among ASA droplets can be effectively avoided. Therefore, the stability of the ASA sizing agent stabilized by the cooperation of hectorite and polyvinylpyrrolidone is obviously improved.

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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    CN-102493272-AJune 13, 2012山东轻工业学院一种asa乳液施胶剂及其制备方法
    CN-102493275-AJune 13, 2012山东轻工业学院一种稳定的asa造纸施胶乳液及其制备方法
    US-2007167558-A1July 19, 2007Basf AktiengesellschaftAqueous dispersions of reactive gluing agents, method for the production and the use thereof
    US-5176748-AJanuary 05, 1993Bercen, Inc.Alkenyl succinic anhydride emulsion

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