含超支化改性纳米氮化硼的可降解环氧树脂导热及电气性能

YANG Guoqing; LYU Zihao; JIANG Chaolu; CHEN Chi; HE Yichen; YANG Peizhi

doi:10.13336/j.1003-6520.hve.20241518

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含超支化改性纳米氮化硼的可降解环氧树脂导热及电气性能

更新时间：2026-09-16

- 含超支化改性纳米氮化硼的可降解环氧树脂导热及电气性能
- Vol. 51, Issue 9, Pages: 4686-4697(2025)
- 作者机构：
  
  西安理工大学电气工程学院,西安,710054
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20241518
  CLC：
- Received：30 September 2025，
  
  Published：2025
- 稿件说明：
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YANG Guoqing, LYU Zihao, JIANG Chaolu, et al. 含超支化改性纳米氮化硼的可降解环氧树脂导热及电气性能[J]. 2025, 51(9): 4686-4697.
DOI：

YANG Guoqing, LYU Zihao, JIANG Chaolu, et al. 含超支化改性纳米氮化硼的可降解环氧树脂导热及电气性能[J]. 2025, 51(9): 4686-4697. DOI： 10.13336/j.1003-6520.hve.20241518.

摘要

为解决用于电子封装领域可降解环氧树脂导热和电气性能不佳的问题，采用超支化聚酯对纳米氮化硼进行表面改性处理，研究了超支化处理氮化硼对引入二硫键固化的环氧树脂导热及电气性能的影响。结果表明，与偶联剂处理方式相比，填充质量分数为5%的超支化聚酯改性纳米氮化硼的可降解环氧树脂，其导热系数提高了44.44%，体积电阻率上升7.11%，交流击穿场强提高12.57%，介质损耗降低了2.82%。将试样浸泡在混有催化剂1

7-三叠氮双环(4.4.0)癸-5-烯的乙二醇溶液中观察降解速率，含超支化改性的试样降解速率更快，端羧基超支化聚酯改性纳米氮化硼试样降解1 h后的残余质量相对偶联剂处理低58.05%。超支化聚酯可改善氮化硼填料的分散性和有机相容性，增强界面结合强度，从而显著提升了可降解复合材料的导热及电气性能。

Abstract

To address the issues of poor thermal and electrical conductivity of degradable epoxy resins used in the field of electronic packaging

hyperbranched polyester was used to modify the surface of nano boron nitride.We investigated the impact of hyperbranched treatment of boron nitride on the thermal and electrical properties of epoxy resins cured with disulfide bonds. The results show that

compared to the coupling agent treatment method

the degradable epoxy resin filled with 5wt% hyperbranched polyester-modified nano boron nitride has a thermal conductivity increase of 44.44%

a volume resistivity increase of 7.11%

an AC breakdown strength increase of 12.57%

and a dielectric loss decrease of 2.82%. By immersing the samples in a glycol solution containing catalyst TBD to observe the degradation rate

the samples containing hyperbranched modification degrade faster

and the residual mass of CHBP-modified nano boron nitride samples after 1 hour of degradation is 58.05% lower than that treated with coupling agents. Hyperbranched polyester can improve the dispersion and organic compatibility of boron nitride fillers

enhance the interfacial bonding strength

and thus significantly improve the thermal and electrical properties of degradable composite materials.

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