研究了JF-45环氧树脂/氰酸酯共聚物的流变特性,并根据双阿累尼乌斯方程建立了JF-45环氧树脂/氰酸酯共聚物的化学流变模型,并对共聚物的黏度进行了预测.结果表明:在80～160℃,共聚树脂体系的相对黏度特性符合双阿累尼乌斯黏度方程;在低于160℃时反应迟缓,初始黏度较高;随着温度升高,树脂黏度降低,随时间延长黏度增加,在170℃附近黏度急剧上升;由DSC曲线和流变模型确定了共聚树脂体系的固化工艺.
Rheological behavior of JF - 45 epoxy/cyanate copolymer was studied. A rbeological model based on Dual-Arrhenius equation was established with experimental data and used to simulate and forecast the rheological behavior of this copolymer. The results indicate that the established rheological model for relative viscosity is in good agreement with Dual-Arrhenius equation at temperature range from 80℃ to 160℃. The initial viscosity is higher below 160℃ due to the low reactive rate of the copolymer. The initial viscosity of the copolymer is decreased with the increase of temperature. The viscosity is increased rapidly at temperature more than 170℃. The curing process is also established based on DSC curves and Dual-Arrhenius equation.
参考文献
| [1] | 尹昌平,肖加余,曾竟成,李建伟,刘钧.E-44环氧树脂体系流变特性研究[J].宇航材料工艺,2008(05):67-70. |
| [2] | 崔郁,李晔,唐邦铭.5284树脂流变特性研究[J].南京大学学报（自然科学版）,2009(02):292-296. |
| [3] | 耿东兵,曾黎明,黎义,胡兵.双马来酰亚胺树脂流变特性研究[J].润滑与密封,2007(01):149-151. |
| [4] | Mijoric J;Lee C H .A composite of chemirheological models for thermo-set cure[J].Journal of Applied Polymer Science,1989,38:2155. |
| [5] | Ferry J D.Viscoelastic properties of polymer[M].New York:Wiley,1980 |
| [6] | Perry M.Resin transfer moulding of epoxy/graphite composite[A].,1992 |
| [7] | 嵇培军;杨明;白树成.环氧树脂/双马树脂/氰酸酯共聚物复合材料性能研究[A].,2008:234-236. |
| [8] | 赵渠森.先进复合材料手册[M].北京:机械工业出版社,2003 |
| [9] | 赵磊,孟季茹,梁国正,秦华宇.改性氰酸酯树脂的研究进展[J].玻璃钢复合材料,2000(05):38-42. |
| [10] | 王志强;王婧婧;刘艳明.氰酸酯改性及复合材料性能[A].北京:航空工业出版社,2004:477-482. |
| [11] | 尹剑波;秦华宇;梁国正 等.共聚改性氰酸酯树脂[J].工程塑料应用,1999,27(07):5-7. |
| [12] | 秦华宇,吕玲,梁国正,闫福胜,王志强,张明习.改性氰酸酯树脂基复合材料的研究[J].玻璃钢/复合材料,2000(01):36-38. |
| [13] | Gutowski T G.Advanced composites manufacturing[M].New York:John Wiley and Sons,Inc,1997:393-457. |
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