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Indexed by:期刊论文

Date of Publication:2017-03-04

Journal:JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

Included Journals:SCIE、EI、Scopus

Volume:38

Issue:3

Page Number:339-346

ISSN No.:0193-2691

Key Words:Amphiphilic; foam concrete; hydroxyethyl starch; triazine

Abstract: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.