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A scaling law of particle transport in inkjet-printed particle-laden polymeric drops.

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Title: A scaling law of particle transport in inkjet-printed particle-laden polymeric drops.
Authors: Cheng, Cih1 (AUTHOR), Moon, Yoon Jae2 (AUTHOR), Hwang, Jun Young2 (AUTHOR), Chiu, George T.-C.1,3 (AUTHOR), Han, Bumsoo1,3,4 (AUTHOR) bumsoo@purdue.edu
Source: International Journal of Heat & Mass Transfer. Aug2022, Vol. 191, pN.PAG-N.PAG. 1p.
Subjects: Thermoresponsive polymers, Pore water, Hydrocolloid surgical dressings, Ink
Abstract: Hydrogels with embedded functional particulates are widely used to create soft materials with innovative functionalities. In order to advance these soft materials to functional devices and machines, critical technical challenges are the precise positioning of particulates within the hydrogels and the construction of the hydrogels into a complex geometry. Inkjet printing is a promising method for addressing these challenges and ultimately achieving hydrogels with voxelized functionalities, so-called digital hydrogels. However, the development of the inkjet printing process primarily relies on empirical optimization of its printing and curing protocol. In this study, a general scaling law is proposed to predict the transport of particulates within the hydrogel during inkjet printing. This scaling law is based on a hypothesis that water-matrix interaction during the curing of inkjet-printed particle-laden polymeric drops determines the intra-drop particle distribution. Based on the hypothesis, a dimensionless similarity parameter of the water-matrix interaction is proposed, determined by the hydrogel's water evaporation coefficient, particle size, and mechanical properties. The hypothesis was tested by correlating the intra-drop particle distribution to the similarity parameter. The results confirmed the scaling law capable of guiding ink formulation and printing and curing protocol. • A scaling law is proposed to predictively design inkjet printing processes of particle-laden hydrogels. • A dimensionless similarity parameter is formulated and validated to predict particle distribution patterns in inkjet-printed hydrogel. • Transport of particles in inkjet-printed hydrogels is determined by the balance of interstitial water flow and hindrance by the polymer matrix. [Display omitted] [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Heat & Mass Transfer is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 156377749
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: A scaling law of particle transport in inkjet-printed particle-laden polymeric drops.
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  Data: <searchLink fieldCode="AR" term="%22Cheng%2C+Cih%22">Cheng, Cih</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moon%2C+Yoon+Jae%22">Moon, Yoon Jae</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hwang%2C+Jun+Young%22">Hwang, Jun Young</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chiu%2C+George+T%2E-C%2E%22">Chiu, George T.-C.</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Bumsoo%22">Han, Bumsoo</searchLink><relatesTo>1,3,4</relatesTo> (AUTHOR)<i> bumsoo@purdue.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Heat+%26+Mass+Transfer%22">International Journal of Heat & Mass Transfer</searchLink>. Aug2022, Vol. 191, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Thermoresponsive+polymers%22">Thermoresponsive polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Pore+water%22">Pore water</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrocolloid+surgical+dressings%22">Hydrocolloid surgical dressings</searchLink><br /><searchLink fieldCode="DE" term="%22Ink%22">Ink</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Hydrogels with embedded functional particulates are widely used to create soft materials with innovative functionalities. In order to advance these soft materials to functional devices and machines, critical technical challenges are the precise positioning of particulates within the hydrogels and the construction of the hydrogels into a complex geometry. Inkjet printing is a promising method for addressing these challenges and ultimately achieving hydrogels with voxelized functionalities, so-called digital hydrogels. However, the development of the inkjet printing process primarily relies on empirical optimization of its printing and curing protocol. In this study, a general scaling law is proposed to predict the transport of particulates within the hydrogel during inkjet printing. This scaling law is based on a hypothesis that water-matrix interaction during the curing of inkjet-printed particle-laden polymeric drops determines the intra-drop particle distribution. Based on the hypothesis, a dimensionless similarity parameter of the water-matrix interaction is proposed, determined by the hydrogel's water evaporation coefficient, particle size, and mechanical properties. The hypothesis was tested by correlating the intra-drop particle distribution to the similarity parameter. The results confirmed the scaling law capable of guiding ink formulation and printing and curing protocol. • A scaling law is proposed to predictively design inkjet printing processes of particle-laden hydrogels. • A dimensionless similarity parameter is formulated and validated to predict particle distribution patterns in inkjet-printed hydrogel. • Transport of particles in inkjet-printed hydrogels is determined by the balance of interstitial water flow and hindrance by the polymer matrix. [Display omitted] [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Heat & Mass Transfer is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1016/j.ijheatmasstransfer.2022.122840
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      – Code: eng
        Text: English
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      – SubjectFull: Thermoresponsive polymers
        Type: general
      – SubjectFull: Pore water
        Type: general
      – SubjectFull: Hydrocolloid surgical dressings
        Type: general
      – SubjectFull: Ink
        Type: general
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      – TitleFull: A scaling law of particle transport in inkjet-printed particle-laden polymeric drops.
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            NameFull: Cheng, Cih
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            NameFull: Moon, Yoon Jae
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            NameFull: Hwang, Jun Young
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            NameFull: Chiu, George T.-C.
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            NameFull: Han, Bumsoo
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            – D: 01
              M: 08
              Text: Aug2022
              Type: published
              Y: 2022
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