研究了不同固化条件对氰酸酯树脂（CE）/环氧树脂（EP）（60/40）体系和CE/EP/丁腈橡胶（A）（71/4/25）体系的固化反应以及CE/EP（60/40）和CE/EP/A（71/4/25）膜性能的影响。CE/EP和CE/EP/A体系固化程度随加热时间延长和温度升高而提高。CE/EP膜柔韧性差。随着加热温度升高,CE/EP/A膜耐热性提高;110℃、130℃和150℃分别加热2 h的膜热分解温度为367.3℃。所制备的CE/EP/A膜冲击强度和柔韧性为50 kg.cm和15 mm。随着加热温度升高,CE/EP/A膜的拉伸强度和杨氏模量提高,断裂伸长率下降。
The effects of different curing conditions on curing reaction of cyanate ester resins（CE）/epoxy resin（EP）（60/40） system and CE/EP/chemigum（A）（71/4/25） system,as well as the properties of the corresponding films were investigated.The curing degree increases with increasing heating time and temperature in both CE/EP and CE/EP/A system.The CE/EP film has poor flexility.The thermal stability of CE/EP/A film was increased with increasing heating temperature under the same heating time;the temperature of thermal decomposition was 367.3 ℃ for the film heated for 2 h at 110 ℃,130 ℃ and 150 ℃,respectively.The impact strength and flexility of CE/EP/A film prepared in this paper are 50 kg·cm and 15 mm.With increasing the heating temperature,the tensile strength and Young＇s modulus of CE/EP/A film enhance,while its elongation at break decreased.
参考文献
| [1] | J.P.Sargent .The influence of inclusions on the strength of adhesive joints[J].International Journal of Adhesion & Adhesives,2006(3):151-161. |
| [2] | W.K. Goertzen;M.R. Kessler .Thermal and mechanical evaluation of cyanate ester composites with low-temperature processability[J].Composites, Part A. Applied science and manufacturing,2007(3):779-784. |
| [3] | William K. Goertzen;M.R. Kessler .Dynamic mechanical analysis of fumed silica/cyanate ester nanocomposites[J].Composites. Part A, Applied science and manufacturing,2008(5):761-768. |
| [4] | Qingsheng Tao;Wenjun Gan;Yingfeng Yu;Minghai Wang;Xiaoling Tang;Shanjun Li .Viscoelastic effects on the phase separation in thermoplastics modified cyanate ester resin[J].Polymer: The International Journal for the Science and Technology of Polymers,2004(10):3505-3510. |
| [5] | Suman JN;Kathi J;Tammishetti S .Thermoplastic modification of monomeric and partially polymerized Bisphenol A dicyanate ester[J].European Polymer Journal,2005(12):2963-2972. |
| [6] | A. V. Sugonyako;A. A. Turkin;R. Gaynutdinov;D. I. Vainshtein;H. W. den Hartog;A. A. Bukharaev .Systematic UHV-AFM experiments on Na nano-particles and nano-structures in NaCl[J].Physica Status Solidi. C, Conferences and critical reviews,2005(1):289-293. |
| [7] | Yu DH;Wang B;Feng Y;Fang ZP .Investigation of free volume, interfacial, and toughening behavior for cyanate ester/bentonite nanocomposites by positron annihilation[J].Journal of Applied Polymer Science,2006(2):1509-1515. |
| [8] | Lu SH;Zhou ZW;Fang L;Liang GZ;Wang JL .Preparation and properties of cyanate ester modified by epoxy resin and phenolic resin[J].Journal of Applied Polymer Science,2007(5):3150-3156. |
| [9] | Shi HH;Fang ZP;Gu AJ;Tong LF;Xu ZB .Carboxyl-terminated butadiene-acrylonitrile rubber modified cyanate ester resin[J].Journal of Applied Polymer Science,2007(5):3098-3104. |
| [10] | Minfeng Zeng;Xudong Sun;Yun Wang;Mingzhu Zhang;Yongmiao Shen;Baoyi Wang;Chenze Qi .A positron annihilation study on the microstructure of cyanate ester resin toughened by carboxyl-terminated butadiene-acrylonitrile rubber system[J].Polymers for advanced technologies,2008(11):1664-1671. |
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