当前位置: X-MOL 学术Polym. Degrad. Stabil. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
1-Dopyl-1,2-(4-hydroxyphenyl)ethene: A flame retardant hardner for epoxy resin
Polymer Degradation and Stability ( IF 6.3 ) Pub Date : 2020-02-28 , DOI: 10.1016/j.polymdegradstab.2020.109110
Bob A. Howell , Gavan W. Lienhart , Veronica J. Livingstone , Darpandeep Aulakh

Treatment of desoxyanisoin with 9,10-dihydro-9-oxaphosphaphenathrene-10-oxide (DOPO) in the presence of an acid catalyst generates an adduct, 1-dopyl-1,2-(4-methoxyphenyl)ethene which may be readily converted to the corresponding diphenolic compound, 1-dopyl-1,2-(4-hydroxyphenyl)ethene (BDE). This material behaves as an effective curing agent for the diglycidyl ether of bisphenol A (DGEBA) to provide a thermally stable (Tdec 417 °C) resin with Tg of 146 °C. This polymer displays outstanding flammability characteristics – an LOI of 36 (compared to 19 for conventionally cured resin), a total heat release of 20 kJ/g and a UL 94 V0 rating. The flame retardant impact of the incorporation of this hardner into the resin is due both to its structure (promotes char formation for solid phase activity) and the presence of the DOPO substituent (promotes gas-phase activity).



中文翻译:

1-Dopyl-1,2-(4-hydroxyphenyl)ethene:环氧树脂用阻燃剂

在酸催化剂的存在下,用9,10-二氢-9-氧杂磷酰苯并菲十胺(DOPO)处理脱氧花环苷产生加合物1-多巴基-1,2-(4-甲氧基苯基)乙烯,可以很容易地转化相应的二酚化合物,1-二-叔丁基-1,2-(4-羟苯基)乙烯(BDE)。该材料可作为双酚A二缩水甘油醚(DGEBA)的有效固化剂,提供热稳定性(T decTg为146°C的树脂(417°C)。该聚合物具有出色的可燃性-LOI为36(传统固化树脂为19),总散热量为20 kJ / g,UL等级为94 V0。该硬化剂掺入树脂的阻燃性影响是由于其结构(促进了用于固相活性的炭形成)和DOPO取代基的存在(促进了气相活性)。

更新日期:2020-02-28
down
wechat
bug