Mixed hyperbranched poly(aryl ether ketone) results in high toughness and excellent thermal resistance in epoxy resin

Li, Shuang'er; Liu, Huichao; Zhu, Haoran; Li, Xiyan; Li, Hong; Shi, Ludi; Li, Yadong; Yu, Jiali; Bao, Feng; Zhu, Caizhen; Xu, Jian

doi:10.1016/j.eurpolymj.2024.112951

European Polymer Journal

2024

DOI: 10.1016/j.eurpolymj.2024.112951

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Mixed hyperbranched poly(aryl ether ketone) results in high toughness and excellent thermal resistance in epoxy resin

Shuang'er Li,

Huichao Liu,

Haoran Zhu

et al.

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Evolution from micropinned to polymeric alloy structure of XLPE‐PS: Improving electrical properties and mechanism

Ahmed,

Zhong,

et al. 2024

J of Applied Polymer Sci

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This research investigates the transition from a micropinned to a polymeric alloy structure in crosslinked‐polyethylene‐polystyrene (XLPE‐PS). Incorporating 2 wt% 10 μm PS particles into low‐density polyethylene (LDPE) and crosslinking with 2 wt% dicumyl peroxide (DCP) forms XLPE‐PS structures. The polymeric alloy structure, formed at 220°C extrusion, contrasts with the micropinned formed at 150°C. Morphological, thermo‐structural, chemical, and crystal properties are examined to understand their impact on electrical properties and charge transport mechanisms. Results indicate that the polymeric alloy effectively resolves void/crack issues, whereas the micropinned exhibits phase separation. Both structures exhibit a benzene‐crosslinked network, and variations in these structures lead to significant changes in thermo‐structural, chemical, and crystalline properties. The polymeric alloy XLPE‐PS shifts the polyethylene (PE) hkl crystal planes, confirming phase shift and optimal alloying. The structural alterations reveal deeper traps and higher densities in the polymeric alloy XLPE‐PS, leading to significantly improved electrical properties, including reduced DC conductivity by up to 1.3 and 0.7 decades at 30 and 90°C, and increased DC breakdown strength by up to 40.34% and 16.17% at 30 and 90°C, respectively, compared with micropinned XLPE‐PS. This research offers insights into stable high‐voltage insulation development.

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Evolution from micropinned to polymeric alloy structure of XLPE‐PS: Improving electrical properties and mechanism

Ahmed,

Zhong,

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Co-enhancement of toughness and strength of room-temperature curing epoxy adhesive derived from hydroxyl-terminated polybutadiene based polyurethane resin

Zhang,

Niu,

Zhao

et al. 2024

European Polymer Journal

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Synthesis of bio-based epoxy resins derived from itaconic acid and application in rubber wood surface coating

Zhang,

Zhuo,

Huang

et al. 2024

Industrial Crops and Products

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Mixed hyperbranched poly(aryl ether ketone) results in high toughness and excellent thermal resistance in epoxy resin

Cited by 5 publications

References 46 publications

Evolution from micropinned to polymeric alloy structure of XLPE‐PS: Improving electrical properties and mechanism

Evolution from micropinned to polymeric alloy structure of XLPE‐PS: Improving electrical properties and mechanism

Co-enhancement of toughness and strength of room-temperature curing epoxy adhesive derived from hydroxyl-terminated polybutadiene based polyurethane resin

Synthesis of bio-based epoxy resins derived from itaconic acid and application in rubber wood surface coating

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