摘要
合成了松香封端改性对苯型不饱和聚酯树脂,研究了不同催化剂对转化率的影响,确定了最佳催化剂组成及用量。对比了改性前后对苯型以及通用邻苯型不饱和聚酯浇注体的物理力学性能、热性能和耐腐蚀性。结果表明:单丁基氧化锡和辛酸亚锡按1∶1质量比复合,用量为对苯二甲酸质量的0.5%时催化效果最佳。松香改性对苯型不饱和聚酯树脂在力学性能、耐酸碱腐蚀和耐水性方面均优于邻苯型树脂,较未改性对苯型不饱和聚酯树脂耐水、耐碱能力增强,与苯乙烯的相容性提高。
The rosin terminated terephthalic unsaturated polyester resin （TUPR） was synthesized. The effect of different catalysts on the conversion rate of the reaction was investigated. The optimum composion and amount of catalyst were determined. The mechnical properties , thermal property and corrosion resistance of castings of the TUPR before and after modification and general orthophthalic unsaturated polyester were compared. The results showed that the catalytic effect was best with the mass ratio of monobutyl tin - oxide to stannous octoate 1 ： 1 and amount 0.5 % （based on the weight of terephthalic acid）. The mechanical property, corrosion resistance and water resistance of rosin modified TUPR were better than the orthophthalic resin and the water resistance , alkali resistance and the compatibility with styrene of it were better than the unmodified TUPR.
出处
《热固性树脂》
CAS
CSCD
北大核心
2009年第4期18-20,共3页
Thermosetting Resin
关键词
对苯型不饱和聚酯
松香
封端
耐腐蚀性
耐水性
相容性
terephthalic unsaturated polyester resin
rosin
termination
corrosion resistance
water resistance
compatibility
