单组分微胶囊填充型环氧树脂基复合材料自修复性能研究
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摘要
为修补航空复合材料使用过程中出现的微裂纹损伤,在环氧树脂基复合材料内部填充单组分微胶囊(壁材为脲醛树脂、芯材为苯甲醇稀释的环氧树脂)。当复合材料内部受损时,微胶囊破裂,流出的修复剂与外部注射的固化剂二乙烯三胺接触,两者在常温下发生交联固化反应,达到修补微裂纹的目的。研究了A、B、C、D 4种不同粒径环氧树脂微胶囊及其填充到复合材料中所占质量分数对材料力学性能及其自修复性能的影响。通过电子万能试验机研究拉伸、弯曲和梯形双悬臂梁(TDCB)试样的力学性能。结果表明:微胶囊填充使复合材料的力学性能下降,但由4种微胶囊填充得到的复合材料的修复率均在65%以上,其中A、B类微胶囊的填充对复合材料力学性能的影响较低,当A、B类微胶囊填充质量分数为5%、7%时,修复率最大,分别为90.1%、92.8%。
In order to repair the defect of microcrack that is occurred during the use of aeronautical composite material,the one-component microcapsule(the wall material is urea-formaldehyde resin,and the core material is epoxy resin diluted by benzyl alcohol)may be filled in the composite material. When the composite material is damaged,the filled microcapsules are ruptured.The over-flowing core material and the curing agent-diethylenetriamine(via external injection)are mixed by cross-linking reaction at room temperature to repair the microcrack.The effects of four different sizes of epoxy resin microcapsules(A,B,C and D)filled in composites and their mass fractions on the mechanical properties and selfhealing properties are investigated.The specimens for tensile,bending,and tapered double cantilever beam(TDCB)fracture testing are measured by the electronic universal testing machine.The results indicate that the mechanical properties of the composites are decreased because of the filling of microcapsules,but the repairing ratios of the composites are all more than 65%.The effects of A and B filled microcapsules on the mechanical properties of composites are lower.The maximum repairing ratios are 90.1% and 92.8% respectively when the mass fractions of A and B filled microcapsules are 5% and7%.
In order to repair the defect of microcrack that is occurred during the use of aeronautical composite material,the one-component microcapsule(the wall material is urea-formaldehyde resin,and the core material is epoxy resin diluted by benzyl alcohol)may be filled in the composite material. When the composite material is damaged,the filled microcapsules are ruptured.The over-flowing core material and the curing agent-diethylenetriamine(via external injection)are mixed by cross-linking reaction at room temperature to repair the microcrack.The effects of four different sizes of epoxy resin microcapsules(A,B,C and D)filled in composites and their mass fractions on the mechanical properties and selfhealing properties are investigated.The specimens for tensile,bending,and tapered double cantilever beam(TDCB)fracture testing are measured by the electronic universal testing machine.The results indicate that the mechanical properties of the composites are decreased because of the filling of microcapsules,but the repairing ratios of the composites are all more than 65%.The effects of A and B filled microcapsules on the mechanical properties of composites are lower.The maximum repairing ratios are 90.1% and 92.8% respectively when the mass fractions of A and B filled microcapsules are 5% and7%.
引文
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[23]袁彦超,容敏智,章明秋.三聚氰胺-甲醛树脂包裹环氧树脂微胶囊的制备及表征[J].高分子学报,2008(5):472-480.
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[26]姜晓波.含双组分微胶囊聚合物基自修复材料的研究[D].广州:中山大学,2008.
[27]袁新华,陈燕秋,张倩,等.自修复微胶囊型环氧树脂复合材料的制备及其性能[J].江苏大学学报(自然科学版),2017,38(4):461-465.
[28]詹世平,周智轶,黄星,等.原位聚合法制备微胶囊相变材料的进展[J].材料导报,2012,26(23):76-78.
[29]白光辉.先进复合材料力学性能测试标准图解[M].北京:化学工业出版社,2015.
[30]田薇,王新厚,潘强,等.自修复聚合物材料用微胶囊[J].化工学报,2005,56(6):1138-1140.
[2]牛丽红.自修复材料应用研究进展[J].合成树脂及塑料,2017,34(4):85-89.
[3]李艳淑.高分子聚合物复合材料的自愈合研究进展分析[J].化工管理,2016(3):89-89.
[4]HUYNH T P,HAICK H.Self-healing,fully functional,and multiparametric flexible sensing platform[J].Advanced Materials,2016,28(1):138-143.
[5]张伟,李艳军,曹愈远,等.典型民机复合材料损伤分析及敲击检测[J].航空计算技术,2016,46(6):38-42.
[6]THAKUR V K,KESSLER M R.Self-healing polymer nanocomposite materials:A review[J].Polymer,2015,69:369-383.
[7]曹珊,李梅,李守海,等.本征型自修复热固性聚合物的研究进展[J].热固性树脂,2017,5(4):40-46.
[8]龚征宇,张国平,孙蓉,等.基于非共价键的本征型自修复聚合物材料及其应用[J].高分子通报,2015(4):1-11.
[9]徐兴旺,沈伟,刘佳莉,等.基于双硫键自修复高分子材料研究进展[J].广东化工,2017,44(11):124-126.
[10]郭亚昆,邹东利,赵鹏翔,等.外援型自修复体系及其在环氧基复合材料中的应用[J].材料导报,2017,31(1):72-76.
[11]申艳娇,杨涛,牛雪娟,等.外援型聚合物基自修复复合材料研究进展[J].玻璃钢/复合材料,2015(1):92-96.
[12]田巧.热可逆型自修复环氧树脂[D].广州:中山大学,2009.
[13]祁恒治,赵蕴慧,朱孔营,等.自修复聚合物材料的研究进展[J].化学进展,2011,23(12):2560-2567.
[14]杨一林,卢珣,王巍巍,等.热可逆自修复聚氨酯弹性体的制备及表征[J].材料工程,2017,45(8):1-8.
[15]唐丽荣,王炜彬,王清华,等.基于芳香基双硫键的乙酸酯化纳米纤维素/聚(脲-氨酯)自愈合材料[J].化工进展,2017,36(4):1381-1387.
[16]TOOHEY K S,SOTTOS N R,LEWIS J A,et al.Self-healing materials with microvascular networks[J].Nature Materials,2007,6(8):581-585.
[17]祁恒治,赵蕴慧,朱孔营,等.自修复聚合物材料的研究进展[J].化学进展,2011,23(12):2560-2567.
[18]WHITE S R,SOTTOS N R,GEUBELLE P H,et al.Erratum:Autonomic healing of polymer composites[J].Nature,2001,409(6822):794-797.
[19]BROWN E N,SOTTO N R,WHITE S R.Fracture testing of a self-healing polymer composite[J].Experimental Mechanics,2002,42(4):372-379.
[20]汪海平,容敏智,章明秋.微胶囊填充型自修复聚合物及其复合材料[J].化学进展,2010,22(12):2397-2407.
[21]CARUSO M M,BLAISZIK B J,WHITE S R,et al.Full recovery of fracture toughness using a nontoxic solvent-based self-healing system[J].Advanced Functional Materials,2010,18(13):1898-1904.
[22]殷陶.基于环氧微胶囊和潜伏固化剂的自修复型环氧复合材料[D].广州:中山大学,2007.
[23]袁彦超,容敏智,章明秋.三聚氰胺-甲醛树脂包裹环氧树脂微胶囊的制备及表征[J].高分子学报,2008(5):472-480.
[24]YUAN Y C,RONG M Z,ZHANG M Q,et al.Study of factors related to performance improve-ment of self-healing epoxy based on dual encapsulated healant[J].Polymer,2009,50(24):5771-5781.
[25]HILLEWAERE X K D,TEIXEIRA R F A,NGUTYEN L T,et al.Autonomous self-healing of epoxy thermosets with thiol-isocyanate chemistry[J].Advanced Functional Materials,2015,24(35):5575-5583.
[26]姜晓波.含双组分微胶囊聚合物基自修复材料的研究[D].广州:中山大学,2008.
[27]袁新华,陈燕秋,张倩,等.自修复微胶囊型环氧树脂复合材料的制备及其性能[J].江苏大学学报(自然科学版),2017,38(4):461-465.
[28]詹世平,周智轶,黄星,等.原位聚合法制备微胶囊相变材料的进展[J].材料导报,2012,26(23):76-78.
[29]白光辉.先进复合材料力学性能测试标准图解[M].北京:化学工业出版社,2015.
[30]田薇,王新厚,潘强,等.自修复聚合物材料用微胶囊[J].化工学报,2005,56(6):1138-1140.