Numerical and experimental investigations on thermal debinding of polymeric binder of powder injection molding compact

L. E. Khoong, Y. C. Lam, J. C. Chai, L. Jiang, J. Ma

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A mathematical model is established to describe the thermal debinding process of polymeric binder from a powder injection molding compact. The model takes into account of the thermal degradation of liquid polymer into liquid volatile fragment, the evaporation of liquid volatile fragment, the capillary driven liquid phase transport, the binary diffusion in solution, the convection and diffusion of gas phases, and the heat transfer in a porous medium. The proposed model is solved numerically based on a finite volume method and validated with experimental data. Based on the numerical results, the binder removal, the pressure buildup, the binder distribution, the mass transfers, and the removal mechanisms during thermal debinding are studied.

Original languageEnglish
Pages (from-to)6927-6938
Number of pages12
JournalChemical Engineering Science
Volume62
Issue number23
Early online date24 Aug 2007
DOIs
Publication statusPublished - Dec 2007
Externally publishedYes

Fingerprint

Injection Molding
Numerical Investigation
Experimental Investigation
Powder
Injection molding
Powders
Binders
Liquid
Volatiles
Liquids
Fragment
Finite volume method
Mass Transfer
Evaporation
Finite Volume Method
Porous Media
Convection
Porous materials
Heat Transfer
Polymers

Cite this

@article{8e493c227b7c44f49755d94399ae3f92,
title = "Numerical and experimental investigations on thermal debinding of polymeric binder of powder injection molding compact",
abstract = "A mathematical model is established to describe the thermal debinding process of polymeric binder from a powder injection molding compact. The model takes into account of the thermal degradation of liquid polymer into liquid volatile fragment, the evaporation of liquid volatile fragment, the capillary driven liquid phase transport, the binary diffusion in solution, the convection and diffusion of gas phases, and the heat transfer in a porous medium. The proposed model is solved numerically based on a finite volume method and validated with experimental data. Based on the numerical results, the binder removal, the pressure buildup, the binder distribution, the mass transfers, and the removal mechanisms during thermal debinding are studied.",
keywords = "Binder removal, Mass transfer, Materials processing, Mathematical modeling, Numerical analysis, Porous media",
author = "Khoong, {L. E.} and Lam, {Y. C.} and Chai, {J. C.} and L. Jiang and J. Ma",
year = "2007",
month = "12",
doi = "10.1016/j.ces.2007.08.051",
language = "English",
volume = "62",
pages = "6927--6938",
journal = "Chemical Engineering Science",
issn = "0009-2509",
publisher = "Elsevier BV",
number = "23",

}

Numerical and experimental investigations on thermal debinding of polymeric binder of powder injection molding compact. / Khoong, L. E.; Lam, Y. C.; Chai, J. C.; Jiang, L.; Ma, J.

In: Chemical Engineering Science, Vol. 62, No. 23, 12.2007, p. 6927-6938.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Numerical and experimental investigations on thermal debinding of polymeric binder of powder injection molding compact

AU - Khoong, L. E.

AU - Lam, Y. C.

AU - Chai, J. C.

AU - Jiang, L.

AU - Ma, J.

PY - 2007/12

Y1 - 2007/12

N2 - A mathematical model is established to describe the thermal debinding process of polymeric binder from a powder injection molding compact. The model takes into account of the thermal degradation of liquid polymer into liquid volatile fragment, the evaporation of liquid volatile fragment, the capillary driven liquid phase transport, the binary diffusion in solution, the convection and diffusion of gas phases, and the heat transfer in a porous medium. The proposed model is solved numerically based on a finite volume method and validated with experimental data. Based on the numerical results, the binder removal, the pressure buildup, the binder distribution, the mass transfers, and the removal mechanisms during thermal debinding are studied.

AB - A mathematical model is established to describe the thermal debinding process of polymeric binder from a powder injection molding compact. The model takes into account of the thermal degradation of liquid polymer into liquid volatile fragment, the evaporation of liquid volatile fragment, the capillary driven liquid phase transport, the binary diffusion in solution, the convection and diffusion of gas phases, and the heat transfer in a porous medium. The proposed model is solved numerically based on a finite volume method and validated with experimental data. Based on the numerical results, the binder removal, the pressure buildup, the binder distribution, the mass transfers, and the removal mechanisms during thermal debinding are studied.

KW - Binder removal

KW - Mass transfer

KW - Materials processing

KW - Mathematical modeling

KW - Numerical analysis

KW - Porous media

UR - http://www.scopus.com/inward/record.url?scp=35348997070&partnerID=8YFLogxK

U2 - 10.1016/j.ces.2007.08.051

DO - 10.1016/j.ces.2007.08.051

M3 - Article

VL - 62

SP - 6927

EP - 6938

JO - Chemical Engineering Science

JF - Chemical Engineering Science

SN - 0009-2509

IS - 23

ER -