TY - JOUR
T1 - Surface preparation strategies in secondary bonded thermoset-based composite materials
T2 - A review
AU - Yudhanto, Arief
AU - Alfano, Marco
AU - Lubineau, Gilles
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/8
Y1 - 2021/8
N2 - A considerable weight reduction in thermoset-based composite is attained by replacing mechanical fasteners with a structural adhesive during the secondary bonding. The quality of this adhesively-bonded joint greatly depends on the surface preparation strategies applied to the mating composites as they influence the surface morphology, topography, interface composition, and mechanical performance of the adherend–adhesive interphase. We reviewed the recent progress of surface preparation strategies generally employed for the aerospace or automotive-grade thermoset composites (carbon/epoxy and glass/epoxy). Then, we briefly reviewed the role of each of them in promoting adhesion mechanisms, i.e., mechanical interlocking, adsorption/chemical bonding, and diffusion. Subsequently, we analyzed qualitatively and quantitatively the effects on indicators associated with surface characteristics of the treated surface and mechanical performance metrics. Finally, we discussed two emerging solutions, namely substrate patterning, and adhesive tailoring. Our analysis shows that creating heterogeneity in the composite adherends or adhesive enables effective tuning of the joint performances.
AB - A considerable weight reduction in thermoset-based composite is attained by replacing mechanical fasteners with a structural adhesive during the secondary bonding. The quality of this adhesively-bonded joint greatly depends on the surface preparation strategies applied to the mating composites as they influence the surface morphology, topography, interface composition, and mechanical performance of the adherend–adhesive interphase. We reviewed the recent progress of surface preparation strategies generally employed for the aerospace or automotive-grade thermoset composites (carbon/epoxy and glass/epoxy). Then, we briefly reviewed the role of each of them in promoting adhesion mechanisms, i.e., mechanical interlocking, adsorption/chemical bonding, and diffusion. Subsequently, we analyzed qualitatively and quantitatively the effects on indicators associated with surface characteristics of the treated surface and mechanical performance metrics. Finally, we discussed two emerging solutions, namely substrate patterning, and adhesive tailoring. Our analysis shows that creating heterogeneity in the composite adherends or adhesive enables effective tuning of the joint performances.
KW - A. Polymer–matrix composites (PMCs)
KW - B. Mechanical properties
KW - E. Joining/joints
KW - E. Surface treatments
UR - http://www.scopus.com/inward/record.url?scp=85105690651&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2021.106443
DO - 10.1016/j.compositesa.2021.106443
M3 - Review article
AN - SCOPUS:85105690651
SN - 1359-835X
VL - 147
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 106443
ER -