Preparation and property of nano-rhombohedral boron nitride/cyanate ester resin composite

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  • College of Environment and Life Sciences,Weinan Normal University,Weinan 714099

Received date: 2020-07-20

  Revised date: 2021-07-21

  Online published: 2021-12-13

Abstract

The nano-rhombohedral boron nitride particles (RBN) were dried and pretreated,and then added with cyanate ester resin (CE) matrix and dibutyltin dilaurate (BDTL) as initiator to prepare CE/RBN series casting composite.The mechanical properties,glass transition temperature,thermal decomposition temperature and thermal weight loss performance of the composite showed that the impact strength was 15.02kJ/m2 when the mass fraction of RBN was 4.0%,which was 71.65% higher than that of the pure matrix cured product.The bending strength reached 163.60MPa,which was 93.60% higher than that of pure matrix cured products.When RBN was 4.0% of organic matrix,the Tg was 289.50℃,which was 13.30% higher than that of pure matrix cured product.The thermal decomposition temperature was 458.30℃,which was increased by 10.73%.The mass retention rate was 72.40%,which was 41.41% higher than the pure matrix cured product.Considering all factors,when the mass fraction of RBN was 4.0% of the mass of the organic matrix,the properties of the composites were comprehensively improved.

Cite this article

Zhu Baolin . Preparation and property of nano-rhombohedral boron nitride/cyanate ester resin composite[J]. New Chemical Materials, 2021 , 49(11) : 119 -122 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.11.025

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