点击次数：

论文类型：期刊论文

发表时间：2017-03-04

发表刊物：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录刊物：SCIE、EI、Scopus

卷号：38

期号：3

页面范围：339-346

ISSN号：0193-2691

关键字：Amphiphilic; foam concrete; hydroxyethyl starch; triazine

摘要：Novel amphiphilic hydroxyethyl starch derivatives 2,4-bistertbutylphenoxy-[1,3,5] -triazine-6-yl)-hydroxyethyl starch with different degrees of substitution of hydrophilic triazine group and hydrophobic hydroxyethyl were prepared by reacting corn starch with chlorohydrin and 2,4-Ditertbutyl phenoxyl-6-chloro-[1,3,5]-triazine, successively. Their structure was characterized by FTIR, H-1 NMR, and SEM. It exhibits ideal surfacial abilities and compressive strength. The surface tension of the amphiphilic hydroxyethyl starch derivatives (MS=1.1, DS=0.026) reached 33.35 mNm(-1) at the critical aggregation concentration (CAC) at 25 degrees C. The compressive strength of foam concrete was 0.97MPa when the amount of added starch derivatives (MS=1.1, DS=0.026) reached 0.1wt% of the total weight.