用于电子束辐照固化的丙炔化合物改性双马来酰亚胺树脂的制备及其性能

IF 1.8 4区化学 Q3 POLYMER SCIENCE

High Performance Polymers Pub Date : 2024-03-19 DOI:10.1177/09540083241240148

Yuhao Zhang, Linxiang Wang, Qiaolong Yuan, Qing Zheng, Liqiang Wan, Farong Huang

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引用次数: 0

摘要

合成了 N，N，N′，N′-四丙炔-p，p′-二氨基二苯甲烷（TPDDM），并将其与作为丙炔化合物的 4，4′-双马来酰亚胺二苯甲烷（BDM）在熔融状态下混合，得到了 TPDDM 改性双马来酰亚胺（BTP）树脂。BTP 树脂在电子束（EB）辐照和加热条件下固化。研究了 BTP 树脂的固化程度和反应。还进一步研究了固化 BTP 树脂的热稳定性和机械性能。结果表明，BTP 树脂可在 EB 照射下固化，固化度超过 82%，且随 EB 照射剂量的增加而增加。EB 固化 BTP 树脂的固化反应与热固化 BTP 树脂相似。尽管 EB 固化 BTP 树脂的固化度较低，但其失重 5%时的温度（Td5）和机械性能与 EB 和热固化过程非常相似。EB 固化 BTP 树脂的玻璃化转变温度（Tg）和弯曲模量均高于热固化 BTP 树脂。EB 固化 BTP 树脂的 Tg 可达到 385°C 以上。TPDDM 改性 BDM 是先进制造技术中 EB 照射固化工艺的候选双马来酰亚胺树脂。

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Preparation and properties of a bismaleimide resin modified with a propargyl compound for electron beam irradiation curing

N, N, N′, N′ -Tetrapropargyl- p, p′-diaminodiphenylmethane (TPDDM) is synthesized and used to blended with 4,4′-bismaleimide diphenylmethane (BDM) as propargyl compound in a molten state to obtain a TPDDM modified bismaleimide (BTP) resin. The BTP resins are cured under electron-beam (EB) irradiation as well as heat. The cure degree and reactions of BTP resins are studied. The thermal stability and mechanical properties of the cured BTP resins are further investigated. The results show that the BTP resins can be cured under EB irradiation and have over 82% degree of cure, which increases with the increase of EB irradiation dose. The cure reactions of EB-cured BTP resin are similar to that of heat-cured BTP resin. The temperature at 5% weight loss ( Td5) and mechanical properties of the cured BTP resins are close analogies between EB and heat cure processes although the cure degrees of EB-cured BTP resins are lower. The glass transition temperature ( Tg) and flexural modulus of the EB-cured BTP resin are higher than that of the heat-cured BTP resin. The Tg of the EB-cured BTP resin can reach over 385°C. The TPDDM-modified BDM is a candidate bismaleimide resin for the EB irradiation curing process in advanced manufacturing technology.

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来源期刊

High Performance Polymers 化学-高分子科学

CiteScore

4.20

自引率

14.30%

发文量

106

审稿时长

1.2 months

期刊介绍： Health Services Management Research (HSMR) is an authoritative international peer-reviewed journal which publishes theoretically and empirically rigorous research on questions of enduring interest to health-care organizations and systems throughout the world. Examining the real issues confronting health services management, it provides an independent view and cutting edge evidence-based research to guide policy-making and management decision-making. HSMR aims to be a forum serving an international community of academics and researchers on the one hand and healthcare managers, executives, policymakers and clinicians and all health professionals on the other. HSMR wants to make a substantial contribution to both research and managerial practice, with particular emphasis placed on publishing studies which offer actionable findings and on promoting knowledge mobilisation toward theoretical advances. All papers are expected to be of interest and relevance to an international audience. HSMR aims at enhance communication between academics and practitioners concerned with developing, implementing, and analysing health management issues, reforms and innovations primarily in European health systems and in all countries with developed health systems. Papers can report research undertaken in a single country, but they need to locate and explain their findings in an international context, and in international literature.