SMA脂肪醇醚单酯钠盐的制备及应用性能  

Preparation and Properties of Amphiphilic Sodium SMA Odd-alcohlo Esters

作　　者：闫哲[1] 强西怀[1] 张辉[1] 方银军 高慧 卢俊杰 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]浙江赞宇科技股份有限公司,浙江杭州310030

出　　处：《中国皮革》2012年第7期42-45,共4页China Leather

基　　金：陕西科技大学科研创新团队(TD09-04);陕西科技大学博士科研启动基金(BJ09-15);赞宇科技基金赞助项目

摘　　要：在N,N-二甲基甲酰胺(DMF)溶剂中采用脂肪醇醚对苯乙烯-马来酸酐共聚物(SMA)进行接枝酯化改性,制备了一种具有梳型两亲结构的SMA脂肪醇醚单酯钠盐表面活性物质,即SMA-g-O-3、SMA-g-O-6、SMA-g-O-10、SMA-g-O-15和SMA-g-O-20。通过红外和GPC分析佐证了接枝酯化的发生,其酯化反应率都在91%以上。采用吊环法对酯化产物的表面张力进行了测定,并对其进行了复鞣加脂应用试验。其试验结果表明:SMA经系列脂肪醇醚改性后,其表面活性有很大程度的提高,其中SMA-g-O-15水溶液的表面活性最好;皮革试样经SMA钠盐、SMA脂肪醇醚单酯钠盐处理作用后,皮革厚度明显增加、抗张强度及抗撕裂强度明显提高,但SMA脂肪醇醚单酯钠盐的效果尤为明显。The surfactants amphiphilic sodium SMA odd - alcohlo esters were prepared, namely SMA - g - O - 3, SMA - g - O -6, SMA - g - O - 10, SMA - g - O - 15 and SMA - g - O -20, through the esterified modification of styene maleic anhydride copolymer（SMA） with aliphatic alcohol ether in the solvent of DMF. Further detection by IR and GPC analysis of the incidence, the graft esterification rates are all above 91% without exception. The surface tension of the outcome tested by swinging ring meth- od and then applied in the retanning and fatliquoring test. It shows that modified by the series of fatty alcohol ether, the SMA sur- factivity is enhanced greatly, especially SMA -g- O -15 aqueous solution. Furthermore, after process of sodium SMA and sodi- um SMA odd - alcohol esters, the thickness, tensile strength and tear strength of the leather samples are significantly improved, and the effect is even more evident to the latter one.

关 键 词：苯乙烯-马来酸酐共聚物 脂肪醇醚 酯化改性 复鞣加脂 皮革 

分 类 号：TQ423[化学工程]