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理论与研究 王晓雯 等·双酚 F 环氧树脂共混体系制备与研究
4 结语
本文针对自制双酚 S 硼酚醛树脂与双酚 F 环氧树
脂共混体系进行研究,得出以下结论 :
(1)以甲醛水溶液和双酚 S 为原料,利用甲醛水
溶液法,加入硼酸将其改性,成功合成了双酚 S 硼酚
醛树脂。
(2)将自制双酚 S 硼酚醛树脂和双酚 F 环氧树脂
在 60 ℃下按照质量比 3 : 7、5 : 5、7 : 3 混合均匀,
得到待测树脂体系样品 A、B、C。采用热重分析仪分
析表明,性能最优秀的样品其初始热分解温度 T d 为
304 ℃,热降解温度 T 50% 为 420 ℃,残炭率 W 800 ℃ 为
12.9%。验证其分子结构,证明其拥有优良的热稳定
图 4 硼酚醛树脂 / 双酚 F 环氧树脂共混体系热重曲线
性和残碳率。
因为硼酯键的分解过程苯环发生碳化,生成了一定量
的碳化硼,同时还可以将游离的酚羟基的含量减少,
参考文献 :
所以树脂的起始热分解温度升高,在失重后期仍保持 [1] L. J. Fan, X. Li, S. J. Park. Synthesis and application
较高残碳率, of epoxy resins: A review[J]. Journal of Industrial and
表 1 BBPSFR/BPFER 共混体系不同样品的热性能 Engineering Chemistry, 2015, (29):1-11.
样品 T d /℃ T 50% /℃ W 800 ℃ /% [2] 田鑫,廖登雄,李玲 . 硼酚醛树脂对环氧树脂的改性研究 [J].
A(3:7) 198.3 355.1 10.74 应用化工,2016,45(07):1 280-1 282+1 285.
B(5:5) 270.7 395.4 12.17 [3] 郭睿,李秀环,何观伟,等 .BPS-BPA 酚醛环氧树脂的合成
C(7:3) 303.8 419.5 12.89 及其应用性能 [J]. 精细化工,2020,37(02):403-411.
Preparation and study of bisphenol F epoxy resin blend system
Wang Xiaowen, Peng Yongli*
(Wuhan Institute of Technology Materials Science and Engineering, Wuhan 430205, Hubei, China)
Abstract: In this paper, the bisphenol F epoxy resin (BPFER for short) is blended with the self-made boron
phenolic resin with its own characteristics of low viscosity and very low molecular weight to obtain a industrial
applicable system with excellent thermal stability and low cost. The boron phenolic resin and bisphenol F epoxy resin were
uniformly mixed at 60 ℃ according to different mass ratios, and their thermal properties were tested by thermogravimetric
analysis (TGA). The results show that the initial thermal decomposition temperature T d of the sample with the best
performance of the system is 304 ℃ , the thermal degradation temperature T 50 % is 420 ℃ , and the carbon
residue rate W 800 ℃ is 12.9%, which proves that its thermal stability and carbon residue rate are relatively good.
Key words: epoxy resin; bisphenol F; blend system
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年
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