中南大学
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返回首页Fabrication of Diaminodiphenylmethane Modified Ammonium Polyphosphate to Remarkably Reduce the Fire Hazard of Epoxy Resins
发布时间：2022-02-25
点击次数：
- 影响因子：
- 4.329
- DOI码：
- 10.3390/polym13193221
- 发表刊物：
- POLYMERS
- 关键字：
- epoxy resindiaminodiphenylmethaneammonium polyphosphateflame retardancysmoke suppressionmechanical property
- 摘要：
- A novel diaminodiphenylmethane (DDM) modified ammonium polyphosphate (APP) flame retardant, DDP, was successfully synthesized via ion-exchange reaction. DDP was introduced into epoxy resins (EPs) to reduce flammability. A comparable level of DDP exerts better flame-retardant and smoke suppression efficiencies in EP than APP. An EP blend containing 15 wt% DDP displays a limiting oxygen index (LOI) value of 37.1% and a UL 94 V-0 rating, and further exhibits a 32.3% reduction in total heat release and a 48.0% reduction in total smoke production compared with pure EP. The presence of DDP greatly facilitates char formation during combustion, and the char mass from thermal decomposition of an EP blend is 37.8% smaller than that of an EP blend containing 15 wt% DDP at 800 degrees C. The incorporation of DDP into EP blends has a smaller impact on the glass transition temperature and tensile strength than those of a comparable level of APP. This reflects the better compatibility of DDP with the EP matrix compared with that for APP.
- 第一作者：
- Wang, FY; Liao, JH; Yan, L*; Liu, H
- 论文类型：
- 期刊论文
- 学科门类：
- 工学
- 一级学科：
- 安全科学与工程
- 文献类型：
- J
- 卷号：
- 13
- 期号：
- 19
- 页面范围：
- 3221
- ISSN号：
- 2073-4360
- 是否译文：
- 否
- 发表时间：
- 2021-11-03
- 收录刊物：
- SCI