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 -