TY - JOUR

T1 - Influence of test fluids on the permeability of epoxy powder bindered non-crimp fabrics

AU - Tonejc, Maximilian

AU - Ebner, Catharina

AU - Fauster, Ewald

AU - Schledjewski, Ralf

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Binder applications have found their place in liquid composite molding processes, as they simplify preprocessing steps such as preforming and subsequent handling. Moreover, binders can modify mechanical behavior of finished fiber reinforced plastic parts. Besides the obvious potentials, topics such as the impregnation behavior become more complicated due to binders. The present paper addresses the issue of estimating permeability values of epoxy powder bindered non-crimp fabrics, after considering different test fluids and their behavior under standard laboratory conditions as well as manufacturing-oriented conditions. Test fluid properties, especially surface energy as well as viscosity development with respect to temperature were provided, thereby highlighting a more complete picture of the flow situation during resin transfer molding processes. In contrary to former scientific studies, the influence of test fluids seems to have more influence when investigating Bindered Preforms.

AB - Binder applications have found their place in liquid composite molding processes, as they simplify preprocessing steps such as preforming and subsequent handling. Moreover, binders can modify mechanical behavior of finished fiber reinforced plastic parts. Besides the obvious potentials, topics such as the impregnation behavior become more complicated due to binders. The present paper addresses the issue of estimating permeability values of epoxy powder bindered non-crimp fabrics, after considering different test fluids and their behavior under standard laboratory conditions as well as manufacturing-oriented conditions. Test fluid properties, especially surface energy as well as viscosity development with respect to temperature were provided, thereby highlighting a more complete picture of the flow situation during resin transfer molding processes. In contrary to former scientific studies, the influence of test fluids seems to have more influence when investigating Bindered Preforms.

KW - binder dissolubility

KW - binder wash out

KW - bindered non-crimp fabrics

KW - permeability characterization

KW - Resin transfer molding

KW - test fluid properties

UR - http://www.scopus.com/inward/record.url?scp=85073196263&partnerID=8YFLogxK

U2 - 10.1080/20550340.2019.1647371

DO - 10.1080/20550340.2019.1647371

M3 - Article

AN - SCOPUS:85073196263

VL - 5.2019

SP - 128

EP - 139

JO - Advanced Manufacturing: Polymer and Composites Science

JF - Advanced Manufacturing: Polymer and Composites Science

SN - 2055-0359

IS - 3

ER -