Impact-induced gelation in aqueous methylcellulose solutions

Galit Parvari; Yonatan Rotbaum; Yoav Eichen; Daniel Rittel

doi:10.1039/c8cc06378h

Impact-induced gelation in aqueous methylcellulose solutions

Galit Parvari
, Yonatan Rotbaum
, Yoav Eichen
, Daniel Rittel

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	12578-12581
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	89
DOIs	https://doi.org/10.1039/c8cc06378h
State	Published - 2018

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
General Chemistry
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1039/c8cc06378h

Cite this

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title = "Impact-induced gelation in aqueous methylcellulose solutions",

abstract = "Aqueous methylcellulose is an {\textquotedblleft}abnormal{\textquotedblright} 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.",

author = "Galit Parvari and Yonatan Rotbaum and Yoav Eichen and Daniel Rittel",

note = "Funding Information: The authors thank Mr Adam Godinger, Dynamic Fracture Laboratory, Technion, for his assistance with the operation of the high-speed Kirana camera, and the two anonymous referees for their valuable inputs. Funding: this research was supported by the Technion Center for Security Science and Technology, Grant 2024374. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

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doi = "10.1039/c8cc06378h",

language = "English",

volume = "54",

pages = "12578--12581",

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TY - JOUR

T1 - Impact-induced gelation in aqueous methylcellulose solutions

AU - Parvari, Galit

AU - Rotbaum, Yonatan

AU - Eichen, Yoav

AU - Rittel, Daniel

N1 - Funding Information: The authors thank Mr Adam Godinger, Dynamic Fracture Laboratory, Technion, for his assistance with the operation of the high-speed Kirana camera, and the two anonymous referees for their valuable inputs. Funding: this research was supported by the Technion Center for Security Science and Technology, Grant 2024374. Publisher Copyright: © The Royal Society of Chemistry.

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85056146592

U2 - 10.1039/c8cc06378h

DO - 10.1039/c8cc06378h

M3 - Article

SN - 1359-7345

VL - 54

SP - 12578

EP - 12581

JO - Chemical Communications

JF - Chemical Communications

IS - 89

ER -

Impact-induced gelation in aqueous methylcellulose solutions

Abstract

ASJC Scopus subject areas

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