Stabilization of ASA-in-water emulsions by Laponite modified with alanine
Stabilization of ASA-in-water emulsions by Laponite modified with alanine
复制标题
丙氨酸改性锂皂石对水包 ASA 乳液的稳定性
DOI：
10.1016/j.colsurfa.2013.07.004
复制
发表时间：
2013-09
影响因子：
5.2
通讯作者：
Qian, Kaifeng
中科院分区：
文献类型：
--
作者：
Liu, Wenxia;Zhou, Xiaofan;Li, Haidong;Qian, Kaifeng
烯基琥珀酸酐（阿萨）是一种油性纸张施胶剂，其通常作为水包ASA乳液引入到造纸系统中。本文将阿萨与丙氨酸改性的Laponite水分散液混合，制备了ASA水包乳液。用丙氨酸对Laponite进行改性减小了乳液液滴尺寸，并且由于降低了阿萨与含有Laponite的水之间的界面张力并且提高了Laponite颗粒对阿萨的亲和力而增强了乳液抗聚结的稳定性。红外光谱分析表明，丙氨酸在Laponite粒子上的吸附延缓了阿萨的水解，当丙氨酸改性粒子用于稳定阿萨乳液时。同时，用丙氨酸对Laponite进行改性也提高了阿萨乳液的施胶效率，且乳液粒径对ASA施胶效率的影响大于阿萨水解对乳液粒径的影响。
Alkenyl succinic anhydride (ASA) is an oily paper sizing agent that is generally introduced into the paper manufacturing system as an ASA-in-water emulsion. In this paper, ASA-in-water emulsions are prepared by homogenizing the mixture of ASA and aqueous dispersion of Laponite modified with alanine. The modification of Laponite with alanine reduces the emulsion droplet size, and enhances the emulsion stability against coalescence due to lowering the interfacial tension between ASA and water containing Laponite and improving the affinity of Laponite particles toward ASA. Infrared spectrum analysis indicates that the adsorption of alanine on the Laponite particles retards the hydrolysis of ASA when the alanine-modified particles are employed to stabilize ASA emulsions. Meanwhile, the sizing efficiency of the as-prepared ASA emulsion is also improved by the modification of Laponite with alanine, and more dependent on emulsion droplet size than on the hydrolysis of ASA.
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DOI：
10.1016/j.colsurfa.2009.11.002
发表时间：
2010-01-15
影响因子：
5.2
作者：
Wang, Jun;Liu, Guopeng;Sun, Dejun
通讯作者：
Sun, Dejun
DOI：
10.1016/s1359-0294(96)80077-x
发表时间：
1996-12
影响因子：
8.9
作者：
D. S. Home
通讯作者：
D. S. Home
DOI：
--
发表时间：
2009
期刊：
--
影响因子：
--
作者：
Liu Wen-xia
通讯作者：
Liu Wen-xia
影响因子：
5.5
作者：
DICKINSON, E
通讯作者：
DICKINSON, E
影响因子：
0.6
作者：
J. M. Gess;D. S. Rende
通讯作者：
J. M. Gess;D. S. Rende