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《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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余周辉
赵培仲
胡芳友
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:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.02.021  或          http://www.mater-rep.com/CN/Y2018/V32/I2/263
Model Appearance Dynamic
viscosity
cP
Epoxide
number
mol/100 g
UVR-6128 Light yellow
thickened and
transparent liquid
400—750 0.45—0.53
ES06 Yellow
transparent
115—300 0.03—0.08
表1  树脂的主要性能
Sample CEP ES 820 T
S1 100 0 0 2
S2 100 0 1 2
S3 100 0 2 2
S4 100 0 3 2
S5 100 0 4 2
S6 100 0 2 0
S7 100 0 2 1
S8 100 0 2 3
S9 100 0 2 4
S10 90 10 2 2
S11 85 15 2 2
S12 80 20 2 2
S13 75 25 2 2
S14 70 30 2 2
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
Sample S3 S10 S11 S12 S13 S14
Tg/℃ 230.1 224.8 222.6 217.5 211.7 210.2
Td,5%/℃ 310.6 309.4 312.1 308.3 302.4 296.5
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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