日用化学工业2016，Vol.46Issue(11)：628-633,6.DOI:10.13218/j.cnki.csdc.2016.11.004
一种耐电解质弱酸环境增稠剂的制备与性能
Synthesis and performance of a thickener with salt resistance in weak acid circumstance
周铮鸣 1陈洪龄 1汪昌国 2李华山2
作者信息
- 1. 南京工业大学化工学院，江苏南京210009
- 2. 南京华狮新材料有限公司，江苏南京210009
- 折叠
摘要
Abstract
A thickener was prepared by solvent - grafting method with poly(methyl vinyl ether - alt - maleic anhydride)and ethoxylated fatty alcohol ether as starting materials. The influences on the esterification of reaction temperature,solvent and catalyst examined. The thickener product was characterized by infrared spectrum. The effects of esterification rate,neutralization degree and kinds of neutralization agent on the properties of the thickener product were also examined. The results showed that,the suitable conditions are as follows:reaction temperature,80 - 90 ℃;reaction solvent,N,N - dimethyl formamide (DMF);catalyst,p -toluene sulfonic acid. Under the aforesaid conditions,the triethanolamine was used as the suitable neutralization agent and formulated to a thickener product (white paste)with content of mass fraction 0. 5% . The viscosity of the prepared white paste achieves 14. 8 Pa·s,and its viscosity retention rate against salt achieves 93. 3% . Its PVI value is 0. 157. Under weak acid condition,it displays good thickening effect. The thickener product prepared is better than that of market thickener with respect to salt resistance.关键词
甲基乙烯基醚/马来酸酐共聚物/脂肪醇聚氧乙烯醚/增稠剂/耐盐性Key words
poly(methyl vinyl ether - alt - maleic anhydride)/ethoxylated fatty alcohol ether/thickener/salt resistance分类
化学化工引用本文复制引用
周铮鸣,陈洪龄,汪昌国,李华山..一种耐电解质弱酸环境增稠剂的制备与性能[J].日用化学工业,2016,46(11):628-633,6.
