Tack measurement of bindered rovings for the dry fiber winding process
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In: Polymer Composites, Vol. 42, No. 9, 26172, 09.2021, p. 4607-4616.
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TY - JOUR
T1 - Tack measurement of bindered rovings for the dry fiber winding process
AU - Neunkirchen, Stefan
AU - Schledjewski, Ralf
N1 - Publisher Copyright: © 2021 The Authors. Polymer Composites published by Wiley Periodicals LLC on behalf of Society of Plastics Engineers.
PY - 2021/9
Y1 - 2021/9
N2 - For the winding of dry (e.g., not impregnated) fibers on convex structures, an adhesive force between surface and roving has to be established. Providing friction is necessary to prevent the roving from slipping. Usually, rovings impregnated or coated with (epoxy-) binder material are used. The investigation of the tack performance of these rovings differs from established studies on pressure-sensitive adhesives and prepregs. It was found that the common probe test is not suitable for bindered rovings. Instead, shear tests were performed on a heated, flat plate with a robotic winding setup. The horizontal force to pull the roving from the plate was measured. Variation of temperature was in focus. Compaction force, pulling speed, and twisting of the roving were also investigated. It could be seen that compaction and thorough heating are the key factors. Due to the small surface, twisting had no significant effect on the tack behavior.
AB - For the winding of dry (e.g., not impregnated) fibers on convex structures, an adhesive force between surface and roving has to be established. Providing friction is necessary to prevent the roving from slipping. Usually, rovings impregnated or coated with (epoxy-) binder material are used. The investigation of the tack performance of these rovings differs from established studies on pressure-sensitive adhesives and prepregs. It was found that the common probe test is not suitable for bindered rovings. Instead, shear tests were performed on a heated, flat plate with a robotic winding setup. The horizontal force to pull the roving from the plate was measured. Variation of temperature was in focus. Compaction force, pulling speed, and twisting of the roving were also investigated. It could be seen that compaction and thorough heating are the key factors. Due to the small surface, twisting had no significant effect on the tack behavior.
KW - binder
KW - dry fiber winding
KW - probe test
KW - shear test
KW - tack
UR - http://www.scopus.com/inward/record.url?scp=85107842696&partnerID=8YFLogxK
U2 - 10.1002/pc.26172
DO - 10.1002/pc.26172
M3 - Article
VL - 42
SP - 4607
EP - 4616
JO - Polymer Composites
JF - Polymer Composites
SN - 1548-0569
IS - 9
M1 - 26172
ER -