Flame retardancy, dielectric performance, pyrolysis behavior of epoxy resin and cyanate ester composites containing a multifunctional flame retardant

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2023-10-09 DOI:10.1002/vnl.22058

Xinhao Cen, Zhilin Cao, Zhengzhou Wang

{"title":"Flame retardancy, dielectric performance, pyrolysis behavior of epoxy resin and cyanate ester composites containing a multifunctional flame retardant","authors":"Xinhao Cen, Zhilin Cao, Zhengzhou Wang","doi":"10.1002/vnl.22058","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>In this research, a novel multifunctional flame retardant (DSF) was prepared through a reaction involving 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), 4-amino-trifluorotoluene, and salicylaldehyde, was characterized by FTIR and <sup>1</sup>H NMR, and was employed to prepare a multifunctional epoxy resin and cyanate ester resin copolymer (EPCE). A comprehensive investigation was conducted to assess the mechanical performance, dielectric properties, thermal behavior, and flame retardancy of EPCE composites. The results indicate that the EPCE composite with 8 wt% DSF (EPCE/8DSF) attained a LOI value of 28.1 vol% and a V-0 rating. The EPCE/8DSF demonstrated a reduction of 25.8% in the peak heat release rate and a decrease of 25.6% in the total heat release in comparison with EPCE. In addition, the EPCE/8DSF composite demonstrated a decrease in both the dielectric constant and dielectric loss at 10 MHz, representing values of 3.58 and 0.00744, respectively. Furthermore, the incorporation of higher DSF content into the EPCE led to a decrease in mechanical properties.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>A multifunctional flame retardant (DSF) was prepared by Kabachnik-Fields reaction, and was used to fabricate multifunctional EPCE composites.</li>\n \n <li>EPCE/DSF composites have good flame retardancy.</li>\n \n <li>The prepared composites also have low dielectric constant and low dielectric loss.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"30 2","pages":"423-438"},"PeriodicalIF":3.8000,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22058","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

In this research, a novel multifunctional flame retardant (DSF) was prepared through a reaction involving 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), 4-amino-trifluorotoluene, and salicylaldehyde, was characterized by FTIR and ¹H NMR, and was employed to prepare a multifunctional epoxy resin and cyanate ester resin copolymer (EPCE). A comprehensive investigation was conducted to assess the mechanical performance, dielectric properties, thermal behavior, and flame retardancy of EPCE composites. The results indicate that the EPCE composite with 8 wt% DSF (EPCE/8DSF) attained a LOI value of 28.1 vol% and a V-0 rating. The EPCE/8DSF demonstrated a reduction of 25.8% in the peak heat release rate and a decrease of 25.6% in the total heat release in comparison with EPCE. In addition, the EPCE/8DSF composite demonstrated a decrease in both the dielectric constant and dielectric loss at 10 MHz, representing values of 3.58 and 0.00744, respectively. Furthermore, the incorporation of higher DSF content into the EPCE led to a decrease in mechanical properties.

Highlights

A multifunctional flame retardant (DSF) was prepared by Kabachnik-Fields reaction, and was used to fabricate multifunctional EPCE composites.
EPCE/DSF composites have good flame retardancy.
The prepared composites also have low dielectric constant and low dielectric loss.

Abstract Image

查看原文本刊更多论文

含多功能阻燃剂的环氧树脂和氰酸酯复合材料的阻燃性、介电性能和热分解行为

本研究通过 9,10-二氢-9-氧杂-10-磷菲-10-氧化物（DOPO）、4-氨基-三氟甲苯和水杨醛的反应制备了一种新型多功能阻燃剂（DSF），并利用傅立叶变换红外光谱和 1H NMR 对其进行了表征，然后将其用于制备多功能环氧树脂和氰酸酯树脂共聚物（EPCE）。研究人员对 EPCE 复合材料的机械性能、介电性能、热性能和阻燃性能进行了综合评估。结果表明，含有 8 wt% DSF 的 EPCE 复合材料（EPCE/8DSF）的 LOI 值为 28.1 vol%，阻燃等级为 V-0。与 EPCE 相比，EPCE/8DSF 的峰值热释放率降低了 25.8%，总热释放率降低了 25.6%。此外，EPCE/8DSF 复合材料在 10 MHz 时的介电常数和介电损耗都有所降低，分别为 3.58 和 0.00744。此外，在 EPCE 中加入较高含量的 DSF 会导致机械性能下降。亮点通过卡巴奇尼克-菲尔兹反应制备了一种多功能阻燃剂（DSF），并将其用于制造多功能 EPCE 复合材料。 EPCE/DSF复合材料具有良好的阻燃性。所制备的复合材料还具有较低的介电常数和介电损耗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.