ES/CEP共混树脂紫外光固化行为及性能研究

doi:10.11896/j.issn.1005-023X.2018.02.021

《材料导报》期刊社

2018, Vol. 32

Issue (2): 263-267 https://doi.org/10.11896/j.issn.1005-023X.2018.02.021

物理材料研究｜材料

ES/CEP共混树脂紫外光固化行为及性能研究

余周辉,赵培仲,胡芳友

海军航空工程学院青岛校区航空机械系,青岛 266041

Study on UV Curing Behavior and Properties of ES/CEP Resin

Zhouhui YU,Peizhong ZHAO,Fangyou HU

Department of Aeronautical and Mechanical Engineering, Qingdao Branch, Naval Academy of Aeronautical Engineering, Qingdao 266041

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摘要

以有机硅环氧树脂为增韧剂改性脂环族环氧树脂,研究了树脂组分比、固化时间、引发剂种类和含量等工艺参数对固化行为的影响;采用热失重(TG)和差示扫描量热(DSC)对固化产物进行了分析。结果表明:当引发剂820和T含量为2%、环氧树脂(CEP)与有机硅树脂(ES)比例为85∶15时,1 000 W高压汞灯紫外光固化15 min,树脂体系可以达到较好的固化效果。与纯环氧树脂相比,添加15%含量ES的共混树脂的抗拉强度略有下降而韧性得到较大提高,玻璃化转变温度下降7.5 ℃,快速失重区热降解速率明显下降。

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关键词: 紫外光固化环氧树脂有机硅树脂增韧

Abstract:

The effect of process parameters, including epoxy resin composition, curing time, initiator types and levels on curing behavior were studied by taking organic silicone as toughening agent to modified epoxy resin. Curing product was analyzed by TG and DSC. The results showed that when the content of initiator 820 and T were 2%, the ratio of epoxy resin and silicone resin was 85∶15, resin system could achieve good solidification effect under the high pressure mercury lamp with 15 minutes UV curing. The tensile strength of blending resin with 15% organic silicon resin slight declines while toughness improved obviously compared with pure epoxy resin. At the same time, glass transition temperature decreased 7.5 ℃ and thermal degradation rate significantly decreased in rapid floating zone.

Key words: UV curing epoxy resin organic silicon resin toughening

出版日期: 2018-01-25 发布日期: 2018-01-25

ZTFLH:	TB332
	V258

引用本文:

余周辉,赵培仲,胡芳友. ES/CEP共混树脂紫外光固化行为及性能研究[J]. 《材料导报》期刊社, 2018, 32(2): 263-267.
Zhouhui YU,Peizhong ZHAO,Fangyou HU. Study on UV Curing Behavior and Properties of ES/CEP Resin. Materials Reports, 2018, 32(2): 263-267.

链接本文:

https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.02.021 或 https://www.mater-rep.com/CN/Y2018/V32/I2/263

表1 树脂的主要性能

Table 2 Formula design (mass fraction/%) of UV curable resins

图1 树脂固化过程示意图

图2 不同树脂配比的典型温度变化曲线

图3 不同树脂配比对固化速率的影响

图4 不同树脂配比在不同光照时间下的凝胶转化率

图5 ES的质量分数对ES/CEP共混树脂力学性能的影响

表3 ES/CEP树脂的热性能

图6 ES/CEP树脂的DSC曲线(电子版为彩图)

图7 ES/CEP树脂的TG曲线(电子版为彩图)

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