PBO纤维与环氧树脂界面粘结性能及其影响因素研究
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摘要
对比了国产及进口聚对苯撑苯并二噁唑(PBO)纤维的物理化学特性及其与环氧树脂的界面粘结性能;研制了两种环氧树脂体系,利用静态接触角法测试了树脂对纤维的浸润性,利用微脱粘方法测试了树脂与PBO纤维的界面剪切强度;通过湿法缠绕成型工艺制备了PBO纤维/环氧树脂复合材料单向板,测试了其层间剪切强度,分析了树脂体系及工艺对层间剪切强度的影响。结果表明,国产PBO纤维与进口PBO纤维物理性能相近,进口纤维表面活性基团含量较高,与环氧树脂的界面剪切强度更高,树脂中加入偶联剂可以改善界面的粘结性能;所研制的环氧树脂与纤维间浸润性较好,界面剪切强度较高;复合材料单向板层间剪切强度最高达到48 MPa,并认为纤维含量、树脂模量对层间剪切性能有一定影响。
In this study,physical and chemical properties and interfacial adhesion with epoxy of domestic and imported poly-p-phenylene benzobisoxazole( PBO) fibers were studied. Two kinds of epoxy systems were developed.Wettability between these resins and fibers was evaluated using static contact angle method,and interfacial shear strength( IFSS) between PBO fiber and resin was measured by single fiber pull-out test. Unidirectional PBO/epoxy composite laminate was fabricated using wet winding molding process. Then,interlaminar shear strength( ILSS) was tested,and the effects of resin matrix and process conditions on ILSS were analyzed. Experimental results show that physical properties of domestic and imported PBO fiber are similar,but imported PBO fiber has higher content of surface active groups and higher IFSS with epoxy resin. Moreover,adding coupling agent into resin can improve interfacial shear strength. The developed resin systems show good wettability and interfacial adhesion with PBO fiber.Their ILSS can reach 48 MPa,and fiber content and modulus of resin matrix are believed to affect ILSS.
In this study,physical and chemical properties and interfacial adhesion with epoxy of domestic and imported poly-p-phenylene benzobisoxazole( PBO) fibers were studied. Two kinds of epoxy systems were developed.Wettability between these resins and fibers was evaluated using static contact angle method,and interfacial shear strength( IFSS) between PBO fiber and resin was measured by single fiber pull-out test. Unidirectional PBO/epoxy composite laminate was fabricated using wet winding molding process. Then,interlaminar shear strength( ILSS) was tested,and the effects of resin matrix and process conditions on ILSS were analyzed. Experimental results show that physical properties of domestic and imported PBO fiber are similar,but imported PBO fiber has higher content of surface active groups and higher IFSS with epoxy resin. Moreover,adding coupling agent into resin can improve interfacial shear strength. The developed resin systems show good wettability and interfacial adhesion with PBO fiber.Their ILSS can reach 48 MPa,and fiber content and modulus of resin matrix are believed to affect ILSS.
引文
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[19]王彦杰,孟家光,张永锋.硅烷偶联剂改性芳纶的性能测试[J].合成纤维,2017,46(4):43-46.
[20]李钟一,鞠苏,石刚,等.PBO纤维表面改性及其与树脂基体界面性能研究[J].玻璃钢/复合材料,2015(2):47-50.
[21]刘巍,张天骄,包建文,等.树脂交联结构特征对复合材料纵向压缩性能的影响[J].航空材料学报,2016,36(1):75-80.
[22]李默宇,梁胜彪,孟庆云,等.碳纤维湿法缠绕用高模量高韧性环氧树脂基体[J].玻璃钢/复合材料,2009(2):72-77.
[23]吴雪平,代建建,汤瑛召,等.模压成型环氧树脂/玄武岩纤维复合材料研究[J].工程塑料应用,2016,44(1):16-21.
[24]谢小霞,王成忠,武小康,等.芳香型聚胺醚及其连续玻纤增强复合材料的性能研究[J].北京化工大学学报(自然科学版),2016,43(4):46-52.
[25]刘新宇,刘锐,程圣利,等.连续碳纤维增强杂萘联苯共聚芳醚砜复合材料的制备及力学性能[J].高分子材料科学与工程,2015,31(3):158-162.
[26]梁宁纳,李光,LiangNingna,等.表面处理对环氧树脂/PBO纤维界面剪切强度的影响[J].工程塑料应用,2015(6):50-53.
[27]程浩.POSS改性PBO复合纤维的制备及其性能研究[D].哈尔滨:哈尔滨工业大学,2015.
[28]张晨阳.γ-射线辐照对PBO纤维结构演化与性能的影响[D].哈尔滨:哈尔滨工业大学,2016.
[29]王斌,丘哲明,刘爱华,等.高性能PBO纤维复合材料成型工艺参数研究[J].航空学报,2004,25(2):192-196.
[2]Hu X D,Jenkins S E,Min B G,et al.Rigid-rod polymers:synthesis,processing,simulation,structure,and properties[J].Macromolecular Materials and Engineering,2003,288(11):823-843.
[3]Kitagawa T,Yabuki K,Young R J.An investigation into the relationship between processing,structure and properties for highmodulus PBO fibres.Part 1.Raman band shifts and broadening in tension and compression[J].Polymer,2001,42(5):2101-2112.
[4]Wu G M,Shyng Y T.Surface modification and interfacial adhesion of rigid rod PBO fibre by methanesulfonic acid treatment[J].Composites Part A Applied Science&Manufacturing,2004,35(11):1291-1300.
[5]Wu G M,Shyng Y T.Effects of basic chemical surface treatment on PBO and PBO fiber reinforced epoxy composites[J].Journal of Polymer Research,2005,12(2):93-102.
[6]So Y H.Rigid-rod polymers with enhanced lateral interactions[J].Progress in Polymer Science,2000,25(1):137-157.
[7]Jian M J,Hui J Z,Li G,et al.Poly(p-phenylene benzoxazole)fiber chemically modified by the incorporation of sulfonate groups[J].Journal of Applied Polymer Science,2008,109(5):3133-3139.
[8]Liu D,Chen P,Mu J,et al.Improvement and mechanism of interfacial adhesion in PBO fiber/bismaleimide composite by oxygen plasma treatment[J].Applied Surface Science,2011,257(15):6935-6940.
[9]Liu D,Chen P,Chen M,et al.Effects of argon plasma treatment on the interfacial adhesion of PBO fiber/bismaleimide composite and aging behaviors[J].Applied Surface Science,2011,257(23):10239-10245.
[10]Liu D,Chen P,Chen M,et al.Improved interfacial adhesion in PBO fiber/bismaleimide composite with oxygen plasma plus aging and humid resistance properties[J].Materials Science&Engineering A,2012,532(3):78-83.
[11]Liu D,Chen P,Chen M,et al.Surface modification of high performance PBO fibers using radio frequency argon plasma[J].Surface&Coatings Technology,2012,206(16):3534-3541.
[12]李凯.PBO纤维复合材料壳体缠绕成型技术研究[D].长沙:国防科学技术大学,2011.
[13]李晓超.活性碳纳米管对纤维复合材料界面及力学性能影响[D].北京:北京化工大学,2011.
[14]过梅丽.高聚物与复合材料的动态力学热分析[M].北京:化学工业出版社,2002.
[15]魏汝斌,李锋,梁勇芳,等.Si C陶瓷表面处理工艺对Si C-AFRP界面粘接性能的影响[J].材料工程,2016,44(12):35-40.
[16]杨继年,许爱琴,丁国新.HGB/PLA复合材料的制备及性能研究[J].材料工程,2012(10):44-47.
[17]朱黎黎,张佐光,李敏,等.工艺温度下树脂与纤维的接触角及其粘附作用研究[J].复合材料学报,2010,27(5):41-46.
[18]邓锐,李敏,张佐光,等.接触角法测玄武岩及玻璃纤维表面能实验[J].北京航空航天大学学报,2007,33(11):1349-1352.
[19]王彦杰,孟家光,张永锋.硅烷偶联剂改性芳纶的性能测试[J].合成纤维,2017,46(4):43-46.
[20]李钟一,鞠苏,石刚,等.PBO纤维表面改性及其与树脂基体界面性能研究[J].玻璃钢/复合材料,2015(2):47-50.
[21]刘巍,张天骄,包建文,等.树脂交联结构特征对复合材料纵向压缩性能的影响[J].航空材料学报,2016,36(1):75-80.
[22]李默宇,梁胜彪,孟庆云,等.碳纤维湿法缠绕用高模量高韧性环氧树脂基体[J].玻璃钢/复合材料,2009(2):72-77.
[23]吴雪平,代建建,汤瑛召,等.模压成型环氧树脂/玄武岩纤维复合材料研究[J].工程塑料应用,2016,44(1):16-21.
[24]谢小霞,王成忠,武小康,等.芳香型聚胺醚及其连续玻纤增强复合材料的性能研究[J].北京化工大学学报(自然科学版),2016,43(4):46-52.
[25]刘新宇,刘锐,程圣利,等.连续碳纤维增强杂萘联苯共聚芳醚砜复合材料的制备及力学性能[J].高分子材料科学与工程,2015,31(3):158-162.
[26]梁宁纳,李光,LiangNingna,等.表面处理对环氧树脂/PBO纤维界面剪切强度的影响[J].工程塑料应用,2015(6):50-53.
[27]程浩.POSS改性PBO复合纤维的制备及其性能研究[D].哈尔滨:哈尔滨工业大学,2015.
[28]张晨阳.γ-射线辐照对PBO纤维结构演化与性能的影响[D].哈尔滨:哈尔滨工业大学,2016.
[29]王斌,丘哲明,刘爱华,等.高性能PBO纤维复合材料成型工艺参数研究[J].航空学报,2004,25(2):192-196.