通过用磷酸对酚醛树脂进行改性,得到一种改性酚醛树脂.采用红外光谱、差热分析和热重分析等技术对酚醛树脂改性前后的结构和耐热性进行考察,并通过测试试样的拉伸剪切强度和抗压强度对改性酚醛树脂的力学性能进行评价.结果表明:经磷酸改性后,在酚醛树脂分子中引入了键能较高的P-O-C和P=O键,使酚醛树脂形成了热稳定性较高的杂环结构并提高了树脂的芳香性,降低了树脂在高温下的分解量,从而使其耐热性和力学性能得到改善.
参考文献
| [1] | 蒋海云,杭祖圣,王继刚,吴申庆.酚醛树脂的热改性方法及研究进展[J].材料工程,2011(10):91-96. |
| [2] | Park, B.-D.;Kadla, J.F..Thermal degradation kinetics of resole phenol-formaldehyde resin/multi-walled carbon nanotube/cellulose nanocomposite[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2012:107-115. |
| [3] | Pérez, J.M.;Fernández, A. .Thermal stability and pyrolysis kinetics of lignin-phenol-formaldehyde resins[J].Journal of Applied Polymer Science,2012(5):3036-3045. |
| [4] | Jigang Wang;Nan Jiang;Haiyun Jiang .Effect of the evolution of phenol-formaldehyde resin on the high-temperature bonding[J].International Journal of Adhesion & Adhesives,2009(7):718-723. |
| [5] | Jungang Gao;Xing Li;Weihong Wu .Octa(aminophenyl) Polyhedral Oligomeric Silsesquioxane/Boron-Containing Phenol-Formaldehyde Resin Nanocomposites: Synthesis, Cured, and Thermal Properties[J].Polymer Composites,2011(5):829-836. |
| [6] | Mohamed O.Abdalla;Adriane Ludwick;Temisha Mitchell .Boron-modified phenolic resins for high performance applications[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(24):7353-7359. |
| [7] | ANIKIN L T;KRARETSKII G T .Heat-resistant adhesive for joining of carbon materials[J].Plaste Kautsh,1992,39(02):5456. |
| [8] | 王继刚,郭全贵,刘朗,宋进仁.白炭黑、B4C改性酚醛树脂粘接石墨高温性能研究[J].材料工程,2001(09):14-17. |
| [9] | 罗渝然.化学键能数据手册[M].北京:科学出版社,2005:224-225. |
| [10] | Jagtoyen M.;Derbyshire F. .Activated carbons from yellow poplar and white oak by H3PO4 activation[J].Carbon: An International Journal Sponsored by the American Carbon Society,1998(7/8):1085-1097. |
| [11] | 李忠,史铁钧,郭立颖.高残炭热固性酚醛树脂的合成及表征[J].高分子材料科学与工程,2009(01):8-11. |
| [12] | YAMASHITA Y;OUCHI K .A study on carbonization of phenol-formaldehyde resin labelled with deuterium and 13C[J].CARBON,1981,19(02):89-94. |
| [13] | M. MOLINA-SABIO;F. CATURLA;F. RODRIGUEZ-REINOSO .Influence of the atmosphere used in the carbonization of phosphoric acid impregnated peach stones[J].Carbon: An International Journal Sponsored by the American Carbon Society,1995(8):1180-1182. |
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%