摘要
合成了一种新型含磷环氧树脂,采用化学分析和红外光谱研究了其结构及反应特性。采用DSC、UL-94垂直燃烧试验和氧指数法表征了含磷环氧树脂/4,4′-二氨基二苯砜(DDS)固化体系的玻璃化温度和阻燃性能,并测定了其拉剪性能及吸水率等。结果表明,含磷环氧树脂的最佳合成反应条件为:反应温度150℃,反应时间150 min,最佳固化工艺为130℃/1 h+160℃/2 h+180℃/2 h+200℃/2 h。磷质量分数为2%时,阻燃效果可达到UL-94-V-0级,同时具有较高的力学强度;固化物玻璃化温度为126℃,吸水率0.24%。该树脂可用于覆铜板等电子产品制造中,可操作性强,成本低。
In this paper, a phosphorus- containing epoxy resin was synthesized. The reaction characteristics and the structure of phosphorous - containing epoxy resin were confirmed by chemical analysis and FTIR. The glass transition temperatures, flame retardancy of the phosphorus - containing epoxy resin/DDS were determined by DSC, UL - 94 vertical test and the oxygen index test. Strength in sheer by tension loading and water absorption were also determined. The results showed that the optimum reaction conditions of phosphorus - containing epoxy resin were as follows： reaction temperature 150 ℃, reaction time 150 min. Tbe best curing process was 130 ℃/1h ＋ 160 ℃/2h ＋ 180℃/2h ＋ 200℃/ 2h.The flame retardancy of the cured system achieved UL - 94 - V - 0 rating with 2% phosphorus - containing and the system has good mechamical properties. The glass transition temperatures was 126 ℃ and water - absorption ratio was 0.24% ,The novel resin could be used in the manufacture of electronic products such as copper clad laminate with strong operability and low cost.
出处
《热固性树脂》
CAS
CSCD
北大核心
2009年第1期27-30,共4页
Thermosetting Resin
关键词
含磷环氧树脂
合成
无卤
阻燃性
phosphorus - containing epoxy resin
synthesis
non - halogen
flame retardancy
