Study on thermal properties of radiation-resistant epoxy composite

Wu, Zhixiong; Li, Jingwen; Zhang, Hao; Huang, Rongjin; Li, Laifeng

doi:10.1016/j.cryogenics.2012.08.010

Cited by 9 publications

(2 citation statements)

References 20 publications

(19 reference statements)

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“…However, for the degradation of g-ray-induced thermoset materials, it has been stagnated by the performance decline of the thermosets rather than a controllable degradation process because of the irregular cleavage of bonds. [26][27][28][29][30] Interestingly, several strategies have been recently used to design irradiationcontrolled bond cleavage. For example, some irradiation-responsive nanoparticles can generate UV light or singlet oxygen, thereby triggering irreversible dissociation of bonds.…”

Section: Materials Horizonsmentioning

confidence: 99%

γ-Ray-driven degradation of robust epoxy thermosets

et al. 2022

Mater. Horiz.

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Section: Materials Horizonsmentioning

confidence: 99%

γ-Ray-driven degradation of robust epoxy thermosets

et al. 2022

Mater. Horiz.

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“…In a large fusion system, superconducting magnets and insulating materials are the important components. In order to guarantee the security of the fusion system, efficient heat dissipation and low thermal expansion at cryogenic conditions are required for insulating materials [9,10]. Thus, a thermally conductive but electrically insulating material appears to be highly desirable.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Boron Nitride Sphere Loading in Epoxy: Enhanced Thermal Conductivity and Excellent Electrical Insulation

Zhang

Huang

et al. 2019

Polymers

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Thermally conductive but electrically insulating materials are highly desirable for thermal management applications in electrical encapsulation and future energy fields, for instance, superconducting magnet insulation in nuclear fusion systems. However, the traditional approaches usually suffer from inefficient and anisotropic enhancement of thermal conductivity or deterioration of electrical insulating property. In this study, using boron nitride sphere (BNS) agglomerated by boron nitride (BN) sheets as fillers, we fabricate a series of epoxy/BNS composites by a new approach, namely gravity-mix, and realize the controllable BNS loading fractions in the wide range of 5–40 wt%. The composites exhibited thermal conductivity of about 765% and enhancement at BNS loading of 40 wt%. The thermal conductivity up to 0.84 W·m−1·K−1 at 77 K and 1.66 W·m−1·K−1 at 298 K was observed in preservation of a higher dielectric constant and a lower dielectric loss, as expected, because boron nitride is a naturally dielectric material. It is worth noting that the thermal property was almost isotropous on account of the spherical structure of BNS in epoxy. Meanwhile, the reduction of the coefficient of thermal expansion (CTE) was largely reduced, by up to 42.5% at a temperature range of 77–298 K.

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