摘要
在含硅芳炔中添加乙酰丙酮镍二水合物(Ni(acac)_2·2H_2O)和炔基化合物N,N,N’,N’-四炔丙基-4,4’-二氨基-二苯甲烷(B4)制备了两种高热稳定性PSA树脂体系,考察添加物用量对体系凝胶时间、固化温度和热稳定性的影响。结果显示:当添加0.2wt%的Ni(acac)_2·2H_2O时,凝胶时间21.2min;峰值固化温度214℃;质量损失5%的热分解温度(T_(d5))为651.1℃;再向其中添加3wt%B4后,凝胶时间缩短到8.5min;峰值固化温度提高到221℃;树脂固化物的热稳定性显著提高。
Two silicon-containing arylacetylene（PSA）resin systems with high thermostablity were prepared by adding nickel acetylacetonate dehydrate（Ni（acac）2·2H2O）and N,N,N＇,N＇-tetrapropargyl-p,p＇-diaminodi-phenyl methane（B4）in the resins.The influence of additive content on gel-time,curing temperature and thermostability of the PSA was investigated.The results showed that addition of 0.2 wt% Ni（acac）2·2H2O in PSA,the gel-time of 21.2 min,peak curing temperature of 214℃ and the temperature of651.1℃ at 5% mass loss（T（d5））were achieved,while further addition of 3 wt% B4,the gel-time,peak curing temperature and Td5 are 8.5 min,221℃,respectively.Thermostability of cured resin is improved obviously.
作者
阮湘政
邓诗峰
姜欢
RUAN Xiangzheng;DENG Shifeng;JIANG Huan(Key Laboratory of Specially Functional Polymeric Materials and Related Technology（East China University of Science and Technology）,Ministry of Education,Shanghai 200237,Chin)
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2018年第4期595-599,604,共6页
Journal of Materials Science and Engineering
关键词
含硅芳炔树脂
乙酰丙酮镍二水合物
炔基化合物
耐高温材料
silicon-containing arylacetylene resin
nickel acetylacetonate dehydrate
alkynyl compound
heat-resistant material
