利用动态TGA方法研究了双酚A二缩水甘油醚环氧树脂和酚醛环氧树脂与双酚A二氰酸酯的两类共混物的热稳定性.用Coats-Redfern研究了不同配比共混物的热分解动力学.结果表明,氰酸酯含量大的双酚A二缩水甘油醚环氧树脂/双酚A二氰酸酯共混物具有两阶段分解机理,而环氧含量大的双酚A二缩水甘油醚环氧树脂/双酚A二氰酸酯共混物具有均一的热分解活化能;相比较而言,酚醛环氧树脂/双酚A二氰酸酯共混物的分解活化能基本上不随温度和组成变化.从后期失重温度和活化能看,酚醛环氧树脂/双酚A二氰酸酯共混物具有比双酚A二缩水甘油醚环氧树脂/双酚A二氰酸酯共混物更高的热稳定性.
参考文献
| [1] | Hamerton I. Chemistry and Technology of Cyanate Ester Resins [M]. Glasgow: Chapman and Hall, 1994. |
| [2] | Fang T, Shimp D A. Polycyanate esters: Science and applications [J]. Prog Polym Sci, 1995, 20: 61-118. |
| [3] | Hamerton I. In: Dyson R W, ed. Specialty Polymers (Second edition) [M]. Glasgow: Blackie Academic and Professional, 1998. |
| [4] | Hamerton I, Hay J H. Recent technological developments in cyanate ester resins [J]. High Perform Polym, 1998, 10: 163-174. |
| [5] | Hamerton I, Hay J H. Recent developments in the chemistry cyanate ester resins [J]. Polym Int, 1998, 47:465-473. |
| [6] | Bauer M, Tanzer W, Much H, et al. Reactions of polyfunctional cyanuric acid esters with polyfunctional glycidylether I: Identification [J]. Acta Polym, 1989, 40(5): 335-340. |
| [7] | Bauer M, Bauer J, Ruhaman R, et al. Reactions of polyfunctional cyanuric acid esters with polyfunctional glycidylether II: Reaction model [J]. Acta Polym, 1989, 40(6): 395-401. |
| [8] | Bauer M, Bauer, J. Networks from cyanic acid esters and glycidyl ethers [J]. Makromol Chem: Macromol Symp, 1989, 30: 1-11. |
| [9] | Shimp D A, Wentworth J H. Cyanate ester-cured epoxy resin structural composites [J]. 37th Int SAMPE Symp, 1992, 37: 293-305. |
| [10] | Coats A W, Redfern J P. Kinetic parameters from thermogravimetric data [J]. Nature, 1964, 201(4914): 68-69. |
| [11] | Ozawa T. Initial kinetic parameters from thermogravimetric rate and conversion data [J]. Bull Chem Soc Jpn, 1965, 38(11): 1881-1886. |
| [12] | Flynn J H, Wall L A. A quick, direct method for the determination of activation energy from thermogravimetric data [J]. J Polym Sci Part B, 1966, 4(5): 323-328. |
| [13] | Breed L W, Elliott R L. Polycyanurates from 2-alkoxy-4,6-dichlorocs-triazines and 2,2-bis(p-hydrooxyphenol)propane [J]. J Polym Sci: Part A-1, 1969, 7(9): 2749-2752. |
| [14] | Nakamura Y, Mori K, Tamura K, et al. Relation of the chemical structure of polycyanurates to thermal and mechanical properties [J]. J Polym Sci: Part A-1, 1969, 7(11): 3089-3100. |
| [15] | Cozzens R F, Walter P, Snow A W. Laser pyrolysis of characterized cyanurate network polymers [J]. J Appli Polym Sci, 1987, 34: 601-616. |
| [16] | Papathomas K I, Wang D W. Triazine networks modified with monofunctional reactive cyanate ester monomers [J]. J Appli Polym Sci, 1992, 44: 1267-1274. |
| [17] | Barton J M, Hamerton I, Jones J R. Study of the thermal and dynamic mechanical properties of functionalized aryl cyanate esters and their polymers [J]. Polym Inter, 1993, 31: 95-106. |
| [18] | Shimp D A. Thermal performance of cyanate functional thermosetting resins [J]. 32nd Int SAMPE Symp, 1987, 32: 1063-1072. |
| [19] | Zacharia R E, Simon S L. Dynamic and isothermal thermogravimetric analysis of a polycyanurate thermosetting system [J]. Polym Eng Sci, 1998, 38: 566-572. |
| [20] | Shimp D A, Ising S J. Moisture effects and their control in the curing of polycyanate resins [J]. Proc Am Chem Soc Div PMSE, 1994,71: 504-505. |
| [21] | Shimp D A. Cyanate esters: An emerging family of versatile composite resins [J]. 34th Int SAMPE Symp, 1989, 34: 222-233. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%