新材料与新技术

纳米菱方氮化硼对氰酸酯树脂的改性研究

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  • 渭南师范学院环境与生命科学学院,渭南714099
祝保林(1975-),男,硕士,教授,主要从事复合材料和功能材料的研究,E-mail:zhubaolin1975@163.com。

收稿日期: 2020-07-20

  修回日期: 2021-07-21

  网络出版日期: 2021-12-13

基金资助

广西省科技厅重点基金(2017AB53025);陕西省教育厅专项基金(201118197);渭南师范学-院专项(2019JYKX009)

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

摘要

将纳米菱方氮化硼粒子(RBN)经烘干预处理后,加入氰酸酯树脂(CE)基体,二月桂酸二丁基锡(BDTL)作为引发剂,制得CE/RBN系列浇铸体复合材料。对浇铸体复合材料的力学想能、玻璃化温度、热分解温度和热失重性能实测表明,RBN质量分数为4.0%时,复合材料冲击强度为15.02kJ/m2,较纯基体固化产物提高了71.65%;弯曲强度达到163.60MPa,较纯基体固化产物提高了93.60%;RBN加入质量为有机基体质量的4.0%时,复合材料玻璃化转变温度(Tg)为289.50℃,比纯基体固化产物提高了13.30%;热分解温度为458.30℃,提高了10.73%;质量保持率为72.40%,比纯基体固化产物提高了41.41%。综合各方面因素考虑,RBN加入的质量分数为有机基体质量的4.0%时,复合材料性能得到综合提升。

本文引用格式

祝保林 . 纳米菱方氮化硼对氰酸酯树脂的改性研究[J]. 化工新型材料, 2021 , 49(11) : 119 -122 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.11.025

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.

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