湿法缠绕成型T700碳纤维/氰酸酯树脂复合材料力学性能研究
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摘要
研究了湿法缠绕成型的T700碳纤维/氰酸酯树脂复合材料NOL环及单向板力学性能。测试了树脂配方的粘度-温度特性,T700碳纤维/氰酸酯树脂复合材料NOL环的拉伸及剪切性能,采用SEM对NOL环拉伸试样破坏形貌进行了观察。测试了T700碳纤维/氰酸酯树脂单向板复合材料的常温拉伸性能、弯曲性能、层间剪切性能和高温弯曲性能。结果表明,树脂配方在25℃下的粘度为800 cps,可以直接在室温条件下用于复合材料湿法缠绕成型,并具有充分的使用期。NOL环的拉伸强度为2220 MPa,剪切强度为56. 8 MPa,树脂基体对碳纤维具有良好的浸润性,能够较好地发挥出碳纤维的高强度特性。T700碳纤维氰酸酯树脂单向板复合材料的高温力学性能优异,200℃下弯曲强度保留率高达60. 4%,250℃下弯曲强度保留率高达45. 0%。
This article was to investigate the mechanical properties of T700 carbon fiber/cyanate ester resin( T700/CE) naval ordnance laboratory( NOL) rings and unidirectional laminate composites which were fabricated by wetting winding process. The relationship of viscosity with temperature of the formula was characterized. Mechanical properties of NOL rings composites including tensile strength,shear strength were measured. The damage morphology of tensile specimen was observed by scanning electron microscopy( SEM). Mechanical properties of unidirectional laminate composites including longitudinal tensile property,flexural property,interlaminar shear strength( ILSS) at room temperature and flexural property at high temperature were measured. The results show that the viscosity of the formula is 800 cps at 25 ℃,which indicates that the formula can be used to wetting winding process directly at room temperature. Meanwhile,the pot life is adequate. The tensile strength of NOL rings is 2220 MPa and the shear strength is 56. 8 MPa. The CE matrix has good infiltration to carbon fiber. The high strength property of the carbon fiber can be better expressed. The high temperature mechanical properties of T700/CE unidirectional laminate composites is superior. The retention rate of flexural property at 200 ℃ is 60. 4%,and the retention rate is45. 2% at 250 ℃.
This article was to investigate the mechanical properties of T700 carbon fiber/cyanate ester resin( T700/CE) naval ordnance laboratory( NOL) rings and unidirectional laminate composites which were fabricated by wetting winding process. The relationship of viscosity with temperature of the formula was characterized. Mechanical properties of NOL rings composites including tensile strength,shear strength were measured. The damage morphology of tensile specimen was observed by scanning electron microscopy( SEM). Mechanical properties of unidirectional laminate composites including longitudinal tensile property,flexural property,interlaminar shear strength( ILSS) at room temperature and flexural property at high temperature were measured. The results show that the viscosity of the formula is 800 cps at 25 ℃,which indicates that the formula can be used to wetting winding process directly at room temperature. Meanwhile,the pot life is adequate. The tensile strength of NOL rings is 2220 MPa and the shear strength is 56. 8 MPa. The CE matrix has good infiltration to carbon fiber. The high strength property of the carbon fiber can be better expressed. The high temperature mechanical properties of T700/CE unidirectional laminate composites is superior. The retention rate of flexural property at 200 ℃ is 60. 4%,and the retention rate is45. 2% at 250 ℃.
引文
[1] Reghunadhan N C P,Dona M,Ninan K N. Advances in polymer science[M]. Bedin:Springer,2001.
[2]Reghunadhan N C P. Advances in addition-cure phenolic resins[J].Progress in Polymer Science,2004,29(5):401-498.
[3]王晓洁,梁国正,张炜,等.氰酸酯树脂在航空航天领域应用研究进展[J].材料导报,2005,19(5):70-72.
[4]娄宝兴,王家梁,张丹枫.氰酸酯树脂的结构与性能[J].绝缘材料,2005,38(6):53-57.
[5]Hamerton I,Hay J N. Recent technological developments in cyanate ester resins[J]. High Performance Polymers,1998,10(2):163-174.
[6]Zaldiva R J. Lessons learned in the processing of polycyanurate resin composites[R]. TR-98(8556)-8.
[7]李文峰,王国建.氰酸酯/双马来酰亚胺树脂的增容改性研究[J].功能材料,2007,38(增刊):2849-2852.
[8]韩建平,刘建超,张炜,等.改性氰酸酯的预聚工艺研究[J].玻璃钢/复合材料,2005(5):33-36.
[9]李文峰,梁国正,于秋霞,等.适合于RTM在室温传递下的低粘度改性氰酸酯树脂研究[J].复合材料学报,2003,20(5):53-56.
[10]张增平,梁国正,任鹏刚,等.环氧改性氰酸酯树脂研究[J].航空材料学报,2006,26(4):100-104.
[11]Sekhar K R,Kishore,Sankaran S. Cure behavior of epoxy-cyanate ester blend in composite systems:Evaluation studies in neat resin cast by thermal and FTIR techniques[J]. Journal of Applied Polymer Science,2008,109(3):2023-2028.
[12]李文峰,王国建.氰酸酯/双马来酰亚胺树脂的增容改性研究[J].功能材料,2007,38(增刊):2849-2852.
[13]刘敬峰,张德文,等.双马来酰亚胺改性氰酸酯树脂及其复合材料[J].热固性树脂,2008,23(2):11-14.
[14]石敏先,李俊菊,黄志雄.氰酸酯/双马来酰亚胺/环氧树脂三元共聚物及性能研究[J].功能材料,2007,38(增刊):2857-2859.
[15]王兆华,曾金芳,韩建平,等.氰酸酯树脂结晶性研究[J].热固性树脂,2010,25(1):12-18.
[2]Reghunadhan N C P. Advances in addition-cure phenolic resins[J].Progress in Polymer Science,2004,29(5):401-498.
[3]王晓洁,梁国正,张炜,等.氰酸酯树脂在航空航天领域应用研究进展[J].材料导报,2005,19(5):70-72.
[4]娄宝兴,王家梁,张丹枫.氰酸酯树脂的结构与性能[J].绝缘材料,2005,38(6):53-57.
[5]Hamerton I,Hay J N. Recent technological developments in cyanate ester resins[J]. High Performance Polymers,1998,10(2):163-174.
[6]Zaldiva R J. Lessons learned in the processing of polycyanurate resin composites[R]. TR-98(8556)-8.
[7]李文峰,王国建.氰酸酯/双马来酰亚胺树脂的增容改性研究[J].功能材料,2007,38(增刊):2849-2852.
[8]韩建平,刘建超,张炜,等.改性氰酸酯的预聚工艺研究[J].玻璃钢/复合材料,2005(5):33-36.
[9]李文峰,梁国正,于秋霞,等.适合于RTM在室温传递下的低粘度改性氰酸酯树脂研究[J].复合材料学报,2003,20(5):53-56.
[10]张增平,梁国正,任鹏刚,等.环氧改性氰酸酯树脂研究[J].航空材料学报,2006,26(4):100-104.
[11]Sekhar K R,Kishore,Sankaran S. Cure behavior of epoxy-cyanate ester blend in composite systems:Evaluation studies in neat resin cast by thermal and FTIR techniques[J]. Journal of Applied Polymer Science,2008,109(3):2023-2028.
[12]李文峰,王国建.氰酸酯/双马来酰亚胺树脂的增容改性研究[J].功能材料,2007,38(增刊):2849-2852.
[13]刘敬峰,张德文,等.双马来酰亚胺改性氰酸酯树脂及其复合材料[J].热固性树脂,2008,23(2):11-14.
[14]石敏先,李俊菊,黄志雄.氰酸酯/双马来酰亚胺/环氧树脂三元共聚物及性能研究[J].功能材料,2007,38(增刊):2857-2859.
[15]王兆华,曾金芳,韩建平,等.氰酸酯树脂结晶性研究[J].热固性树脂,2010,25(1):12-18.