Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2017-03-04

Journal: JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

Included Journals: Scopus、EI、SCIE

Volume: 38

Issue: 3

Page Number: 339-346

ISSN: 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.