Spent coffee grounds: Massively supplied carbohydrate polymer applicable to electrorheology

Youngsang Chun; Young Gun Ko; Taegu Do; Youngkyun Jung; Seung Wook Kim; Ung Su Choi

doi:10.1016/j.colsurfa.2018.11.005

Spent coffee grounds: Massively supplied carbohydrate polymer applicable to electrorheology

Youngsang Chun, Young Gun Ko, Taegu Do, Youngkyun Jung, Seung Wook Kim, Ung Su Choi

Department of Chemical and Biological Engineering

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

15 Citations (Scopus)

Abstract

Enormous volume of spent coffee grounds in our life is one of interesting method to acquire natural carbon source for several industries. The purpose of this work is considering the discarded organic waste as polysaccharide-based ER materials. Cellulose, hemicellulose and lignin are simple to apply in electro rheological materials based on previous studies. The surface of spent coffee grounds were analyzed by Fourier transform infrared spectroscopy (FT-IR) in order to examine the functional groups which force to ER effect. Thermogravimetric analysis (TGA), X-ray diffraction (XRD) and field-emission gun scanning electron microscope (SEM) were used to characterize promising ER material. Different volume fractions of ER fluid were evaluated in order to determine the optimum condition for high shear stress, storage/loss modulus and temperature stability were also investigated for feasibility.

Original language	English
Pages (from-to)	392-401
Number of pages	10
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	562
DOIs	https://doi.org/10.1016/j.colsurfa.2018.11.005
Publication status	Published - 2019 Feb 5

Keywords

Electro-gelation
Electro-response
Smart colloidal suspension
Spent coffee grounds

ASJC Scopus subject areas

Surfaces and Interfaces
Physical and Theoretical Chemistry
Colloid and Surface Chemistry

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10.1016/j.colsurfa.2018.11.005

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title = "Spent coffee grounds: Massively supplied carbohydrate polymer applicable to electrorheology",

abstract = "Enormous volume of spent coffee grounds in our life is one of interesting method to acquire natural carbon source for several industries. The purpose of this work is considering the discarded organic waste as polysaccharide-based ER materials. Cellulose, hemicellulose and lignin are simple to apply in electro rheological materials based on previous studies. The surface of spent coffee grounds were analyzed by Fourier transform infrared spectroscopy (FT-IR) in order to examine the functional groups which force to ER effect. Thermogravimetric analysis (TGA), X-ray diffraction (XRD) and field-emission gun scanning electron microscope (SEM) were used to characterize promising ER material. Different volume fractions of ER fluid were evaluated in order to determine the optimum condition for high shear stress, storage/loss modulus and temperature stability were also investigated for feasibility.",

keywords = "Electro-gelation, Electro-response, Smart colloidal suspension, Spent coffee grounds",

author = "Youngsang Chun and Ko, {Young Gun} and Taegu Do and Youngkyun Jung and Kim, {Seung Wook} and {Su Choi}, Ung",

note = "Funding Information: This work was supported by the Green City Technology Institutional Program funded by Korea Institute of Science and Technology ( KIST-2018-2E28130 ). Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

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doi = "10.1016/j.colsurfa.2018.11.005",

language = "English",

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T2 - Massively supplied carbohydrate polymer applicable to electrorheology

AU - Chun, Youngsang

AU - Ko, Young Gun

AU - Do, Taegu

AU - Jung, Youngkyun

AU - Kim, Seung Wook

AU - Su Choi, Ung

N1 - Funding Information: This work was supported by the Green City Technology Institutional Program funded by Korea Institute of Science and Technology ( KIST-2018-2E28130 ). Publisher Copyright: © 2018 Elsevier B.V.

PY - 2019/2/5

Y1 - 2019/2/5

N2 - Enormous volume of spent coffee grounds in our life is one of interesting method to acquire natural carbon source for several industries. The purpose of this work is considering the discarded organic waste as polysaccharide-based ER materials. Cellulose, hemicellulose and lignin are simple to apply in electro rheological materials based on previous studies. The surface of spent coffee grounds were analyzed by Fourier transform infrared spectroscopy (FT-IR) in order to examine the functional groups which force to ER effect. Thermogravimetric analysis (TGA), X-ray diffraction (XRD) and field-emission gun scanning electron microscope (SEM) were used to characterize promising ER material. Different volume fractions of ER fluid were evaluated in order to determine the optimum condition for high shear stress, storage/loss modulus and temperature stability were also investigated for feasibility.

AB - Enormous volume of spent coffee grounds in our life is one of interesting method to acquire natural carbon source for several industries. The purpose of this work is considering the discarded organic waste as polysaccharide-based ER materials. Cellulose, hemicellulose and lignin are simple to apply in electro rheological materials based on previous studies. The surface of spent coffee grounds were analyzed by Fourier transform infrared spectroscopy (FT-IR) in order to examine the functional groups which force to ER effect. Thermogravimetric analysis (TGA), X-ray diffraction (XRD) and field-emission gun scanning electron microscope (SEM) were used to characterize promising ER material. Different volume fractions of ER fluid were evaluated in order to determine the optimum condition for high shear stress, storage/loss modulus and temperature stability were also investigated for feasibility.

KW - Electro-gelation

KW - Electro-response

KW - Smart colloidal suspension

KW - Spent coffee grounds

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U2 - 10.1016/j.colsurfa.2018.11.005

DO - 10.1016/j.colsurfa.2018.11.005

M3 - Article

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SN - 0927-7757

VL - 562

SP - 392

EP - 401

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

Spent coffee grounds: Massively supplied carbohydrate polymer applicable to electrorheology

Abstract

Keywords

ASJC Scopus subject areas

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