研究了真空辅助树脂注射（VARI）工艺中含定型剂织物定型参数对织物压缩特性、渗透特性及其复合材料力学性能的影响，确定织物最优的定型参数。采用DSC和IR分别对织物表面定型剂的熔融特性和组成进行了分析，测试了不同定型温度下的压缩、渗透特性及复合材料力学性能。结果表明：此定型剂为含有环氧基团的低熔点聚合物；低于100℃时，随着定型温度的升高，织物的压缩厚度和渗透率均下降；100-140℃时，随着定型温度的升高，织物的压缩厚度基本无变化，渗透率有所提高，定型温度对力学性能基本无影响。
In order to choose the best parameters of tackifier in vacuum assisted resin infusion（VARI） processing, the effects of tackifier on perform permeability, fiber compression and mechanical performance were addressed. The component of tackifier and its melting characteristics were ananlyzed by DSC and IR. The perform permeability, fiber compression characteristics and mechanical performance at different temperatures were examined. It is shown that the tackfier is a kind of polymer with epoxide group and Iow melting point. For the same tackifier concentration, the perform permeability and compressed thickness decrease as the temperature increasing below 100 ℃, but between 100 ℃ and 140 ℃, the compressed thickness keeps constant and the permeability increases as the temperature increasing. The temperature has no significant effect on the mechanical properties.
参考文献
| [1] | 陈祥宝.先进复合材料低成本技术[M].北京:化学工业出版社,2004:99-155. |
| [2] | 张玉龙.先进复合材料制造技术手册[M].北京:机械工业出版社,2003:337-362. |
| [3] | 乌云其其格,益小苏.复合材料低成本成型用预成型体的制备[J].高科技纤维与应用,2005,30(1):28-34. |
| [4] | 刘兆麟.程灿灿.复合材料液体模塑成型工艺研究现状[J].山东纺织科技,2011(2):50-53 |
| [5] | Shih C H, Lee L. Tackification of textile fiber preforms in resin transfer molding [J]. Journal of Composite Materials, 2001, 35(21) : 1954-1981. |
| [6] | Kittelson J L, Hackett S C. Tackifier/resin compatibility is essential for aerospace grade resin transfer molding [C] // Proceedings of the 39th International SAMPE Symposium. Anaheim: CA, 1994: 83-96 |
| [7] | Chen J, Backes D, Jayarman K. Dynamics of binder displacement in liquid molding [J]. Polymer Composites, 1996, 17(1): 23-33. |
| [8] | George A R, Drechsler K, Holmberg A. The permeability of tackified, stitched, and braided carbon fiber textiles: Experimental characterization and design modeling [C] // International SAMPE Symposium and Exhibition. Baltimore: [s. n. ], 2009 |
| [9] | Shih C H, Liu Q, James L. Tackified SCRIMP for aerospace applications [C] // Proceedings of the 45th International SAMPE Symposium. Long Beach: CA, 2000 |
| [10] | Knight J C, Backes D, Jayarman K. Consolidation and relaxation behavior of continuous strand random glass mats with thermoplastic binders [J].Polymer Composites, 1996, 17(3) : 451-457. |
| [11] | Huang Y J, Horng J C. Effects of thermoplastic additives on mechanical properties and glass transition temperatures for styrene- crosslinked low- shrink polyester matrices [J].Polymer, 1998, 39(16) : 3683-3695. |
| [12] | Brody J C. The evaluation of preform binders in laminated composite materials [M]. University of Delaware: Newark, DE, 2003 |
| [13] | Rohatgi V, Lee J. Moldability of tackified fiber preforms in liquid composite molding [J]. Polymer Composites, 1997, 31 (7) : 720-744. |
| [14] | Hayes B S, Seferis J C. Interlayer toughening of VARTM composites: Effects of tackifier loading [J]. Composites: Part A, 2001, 32, 721-729. |
| [15] | Brody J C, Gillespie Jr J W. Reactive and non-reactive binders in glass/vinyl ester composites [J]. Polymer Composites, 2005, 26: 377-387. |
| [16] | 蔡吉喆,肇研,刘慧,等.新型RTM预成型体用定位胶黏剂的研制[J].复合材料学报,2010,27(1):18-23. |
| [17] | 陈利,张一帆,孙绯,等.预定型平纹织物的剪切模型[J].复合材料学报,2010,27(2):154-160. |
| [18] | 段跃新,孟润生,苏英霞.预成型体质量对桨叶RTM成型工艺缺陷的影响[J].玻璃钢/复合材料,2011(2):48-52 |
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