Impact of the Topography of Fiber Surface on the Interfacial Crystallization Behavior of Poly(lactide)

Jing, Mengfan; Liu, Xuyang; Ma, Like; Cao, Fukang; Wang, Zihao; Wang, Yaming; Liu, Chuntai; Shen, Changyu

doi:10.1021/acs.macromol.3c00014

Macromolecules

2023

DOI: 10.1021/acs.macromol.3c00014

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Impact of the Topography of Fiber Surface on the Interfacial Crystallization Behavior of Poly(lactide)

Mengfan Jing,

Xuyang Liu,

Like Ma

et al.

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2024

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Cited by 2 publications

References 80 publications

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Thermal aging behavior and heat resistance mechanism of ultraviolet crosslinked ultra‐high molecular weight polyethylene fiber

Dong,

Niu,

Qiang

et al. 2024

J of Applied Polymer Sci

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As advances in heat resistant ultrahigh molecular weight polyethylene (UHMWPE) fiber via ultraviolet (UV) crosslinking, it is worth paying attention to its thermal aging behavior and heat resistance mechanism. UHMWPE fibers in different forms, the fully drawn yarn (FDY) and the UV crosslinked FDY (UVFDY), are subjected to isothermal aging at 135°C. The effects of thermal aging on their surface morphology and mechanical properties are studied and compared initially. The results demonstrate that UVFDY is a kind of a heat‐resistant fiber. Subsequently, to reveal the heat resistance mechanism of UVFDY, its crystalline and orientation structure evolution during thermal aging are further studied. It is indicated that the formation of dense‐packing crystals and disorientation behavior lead to fiber shrink, so that a number of grooves appear on the fiber surface. Since the crosslinked stucture of UVFDY hinders its molecules movement, the crystallization and disorientation behavior of UVFDY are weaker than those of FDY, resulting in UVFDY possesses slighter thermal shrinkage (Ts), fewer grooves and better mechanical properties than those of FDY. Therefore, the heat resistance of the fiber improves effectively after UV crosslinking. This work provides insights into the structure–property relationship of UVFDY during thermal aging, and offers basis data for its application in specific conditions.

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Thermal aging behavior and heat resistance mechanism of ultraviolet crosslinked ultra‐high molecular weight polyethylene fiber

Dong,

Niu,

Qiang

et al. 2024

J of Applied Polymer Sci

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Inverse effects of cooling rates on the interfacial shear strength of carbon Fiber/PEEK composites with and without presence of transcrystal layers

Yu,

Zhang,

Liu

et al. 2024

Polymer

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Impact of the Topography of Fiber Surface on the Interfacial Crystallization Behavior of Poly(lactide)

Cited by 2 publications

References 80 publications

Thermal aging behavior and heat resistance mechanism of ultraviolet crosslinked ultra‐high molecular weight polyethylene fiber

Thermal aging behavior and heat resistance mechanism of ultraviolet crosslinked ultra‐high molecular weight polyethylene fiber

Inverse effects of cooling rates on the interfacial shear strength of carbon Fiber/PEEK composites with and without presence of transcrystal layers

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