Impact-induced gelation in aqueous methylcellulose solutions

被引：9

作者：

Parvari, Galit ^{[1
]}

Rotbaum, Yonatan ^{[2
]}

Eichen, Yoav ^{[1
]}

Rittel, Daniel ^{[2
]}

机构：

[1] Technion Israel Inst Technol, Schulich Fac Chem, IL-3200008 Haifa, Israel

[2] Technion Israel Inst Technol, Fac Mech Engn, IL-3200008 Haifa, Israel

来源：

CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 89期

关键词：

IN-SITU OBSERVATION; THERMOREVERSIBLE GELATION; PHASE-SEPARATION; THERMAL GELATION; METHYL; HEAT;

D O I：

10.1039/c8cc06378h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aqueous methylcellulose is an "abnormal'' inverse-freezing fluid, which gelates when heated. We ventured to stimulate this phase-transition by mechanical impact, whose resulting shockwaves and local heat could be uptaken by the endothermic gelation. High-speed photography was used to observe this transition in microsecond timescales. This phenomenon enables attenuation of shockwaves.

引用

页码：12578 / 12581

页数：4

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