journal article Feb 05, 2021

Synergistically enhanced ultraviolet aging resistance and interfacial adhesion of poly (p‐phenylene benzobisoxazole) fiber with soluble naphthalimide sizing

Polymer Composites Vol. 42 No. 4 pp. 2122-2134 · Wiley
Abstract
AbstractAmino‐terminated naphthalimide (NDI) with ultraviolet (UV) absorptivity was synthesized to sizing on poly(p‐phenylene benzobisoxazole) (PBO) fiber surface, and UV aging resistance PBO fiber and interfacial adhesion of their composites was investigated. Compared with pristine PBO fiber, the surface chemical activity and roughness of NDI‐PBO fiber were increased. In comparison with pristine PBO fiber, tensile strength, intrinsic viscosity ([η]), and diameter of NDI‐PBO fiber showed a better retention, and the enhanced UV‐aging resistance was verified by hardly visible macroscopic defects on NDI‐PBO fiber. Meanwhile, transverse fiber bundle test strength of NDI‐PBO fiber composites was promoted by stronger mechanical interlocking and chemical interaction. The synergistic improvement in UV aging resistance and interfacial adhesion of PBO fiber was attributed to undamaged crystal and molecular structure from UV protection effects of NDI layer and strong chemical bonding between reactive groups of NDI and epoxy matrix.
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19
Citations
38
References
Details
Published
Feb 05, 2021
Vol/Issue
42(4)
Pages
2122-2134
License
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Funding
National Natural Science Foundation of China Award: U1809218
Natural Science Foundation of Jiangsu Province Award: BK20191164
Cite This Article
Kangyi Lu, Xin Ge, Zhenhai Wei, et al. (2021). Synergistically enhanced ultraviolet aging resistance and interfacial adhesion of poly (p‐phenylene benzobisoxazole) fiber with soluble naphthalimide sizing. Polymer Composites, 42(4), 2122-2134. https://doi.org/10.1002/pc.25964
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