分子筛对玻璃纤维/环氧树脂复合材料湿热前后力学性能的影响
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摘要
以添加不同质量分子筛(TS)的环氧树脂(EP)作为基体,玻璃纤维(GF)布为增强体,制备了一系列树脂基复合材料层压板试样,研究了不同TS添加量对其耐湿热性能的影响。结果表明,无论是否进行湿热处理,添加了TS的树脂基复合材料层压板试样比不添加的试样拉伸强度提高约20%～30%。增强效果随添加比例的增加呈现先升后降的趋势。当添加比例为0.3%时,提升效果相对最好。同时添加0.3%质量比例分子筛的材料在室温条件下脱水速率相对最慢,但不同添加量的试样最终总脱水量大致相同,由此证明大量水分被分子筛锁住,进而减少水对材料的不利影响。
Using the epoxy resins with different contents of molecular sieve as the matrix and glass fiber fabrics as the reinforcement, the composite laminate samples were prepared. The mechanical properties of the composites were tested to investigate the effect of molecular sieve on their hygrothermal resistance. According to the experimental data, the tensile strength of the composite sample with molecular sieve was about 20%～ 30% higher than that of the sample without molecular sieve. The enhancement effect increased first and then decreased with increasing the molecular sievec amount.The promotion was the most effective when the molecular sieve adding amount was 0.3 wt%. At the same time, the dehydrate rate at room temperature of the material with 0.3 wt% of molecular sieve was the slowest. But the final total amounts of dewatering of the samples with different added concentrations were roughly the same, which proved that the large amount of water was locked by molecular sieve, thus reducing the adverse effect of water on the material.
Using the epoxy resins with different contents of molecular sieve as the matrix and glass fiber fabrics as the reinforcement, the composite laminate samples were prepared. The mechanical properties of the composites were tested to investigate the effect of molecular sieve on their hygrothermal resistance. According to the experimental data, the tensile strength of the composite sample with molecular sieve was about 20%～ 30% higher than that of the sample without molecular sieve. The enhancement effect increased first and then decreased with increasing the molecular sievec amount.The promotion was the most effective when the molecular sieve adding amount was 0.3 wt%. At the same time, the dehydrate rate at room temperature of the material with 0.3 wt% of molecular sieve was the slowest. But the final total amounts of dewatering of the samples with different added concentrations were roughly the same, which proved that the large amount of water was locked by molecular sieve, thus reducing the adverse effect of water on the material.
引文
[1]徐如人.分子筛与多孔材料化学[M].北京:科学出版社,2004.
[2]沈晓洁.沸石分子筛的发展及在石油化工中的应用[J].辽宁化工,1997,26(3):22-23,10.
[3]张大厚.防腐蚀复合材料及其应用[M].北京:化学工业出版社,2006.
[4]赵鹏.纤维增强树脂基复合材料湿热老化性能研究[D].南京:南京航空航天大学,2009.
[5]孙博,李岩.复合材料湿热老化行为研究及其耐久性预测[J].玻璃钢/复合材料,2013,40(4):29-35.
[6]刘新佳.工程材料[M].北京:化学工业出版社,2006.
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[8]张莉莉,黄思共,李湘祁,等.介孔MCM-48粉体对环氧树脂性能影响[J].热固性树脂,2009,24(6):41-43,49.
[9]王娜,张静,戴彩云,等.环氧树脂/纳米介孔分子筛复合材料的制备及性能研究[J].工程塑料应用,2006,34(5):15-18.
[10]王绍辉,徐曼,罗潘,等.不同偶联剂对介孔分子筛MCM-41的表面修饰及对MCM-41/环氧树脂性能的影响[J].复合材料学报,2016,33(2):249-258.
[11]张双寅,刘济庆.复合材料结构的力学性能[M].北京:北京理工大学出版社,1992.
[12]刘万辉,于玉城.复合材料[M].哈尔滨:哈尔滨工业大学出版社,2011.4-6.
[13]李宏运.先进复合材料制造技术[M].北京:化学工业出版社,2004.
[14]王放,曾祥国,魏玉卿,等.纤维增强复合材料拉伸强度的weak-link比例预测[J].四川大学学报(工程科学版),2009,41(4):136-140,150.
[15]LIN J J,WANG X D.Preparation,microstructure,and properties of novel low-κbrominated epoxy/mesoporous silicacom-posites[J].European Polymer Journal,2008,44(5):1414-1427.
[16]Romanes MC,D’Souza NA,Coutinho D,etal.Surfaceand subsurface characterization of epoxy-mesoporous silica composites to clarify tribological properties[J].Wear,2008,265(1-2):88-96.
[2]沈晓洁.沸石分子筛的发展及在石油化工中的应用[J].辽宁化工,1997,26(3):22-23,10.
[3]张大厚.防腐蚀复合材料及其应用[M].北京:化学工业出版社,2006.
[4]赵鹏.纤维增强树脂基复合材料湿热老化性能研究[D].南京:南京航空航天大学,2009.
[5]孙博,李岩.复合材料湿热老化行为研究及其耐久性预测[J].玻璃钢/复合材料,2013,40(4):29-35.
[6]刘新佳.工程材料[M].北京:化学工业出版社,2006.
[7]福田博.复合材料力学的弹性学、材料力学基础理论[J].纤维复合材料,2000,29(2):51-55.
[8]张莉莉,黄思共,李湘祁,等.介孔MCM-48粉体对环氧树脂性能影响[J].热固性树脂,2009,24(6):41-43,49.
[9]王娜,张静,戴彩云,等.环氧树脂/纳米介孔分子筛复合材料的制备及性能研究[J].工程塑料应用,2006,34(5):15-18.
[10]王绍辉,徐曼,罗潘,等.不同偶联剂对介孔分子筛MCM-41的表面修饰及对MCM-41/环氧树脂性能的影响[J].复合材料学报,2016,33(2):249-258.
[11]张双寅,刘济庆.复合材料结构的力学性能[M].北京:北京理工大学出版社,1992.
[12]刘万辉,于玉城.复合材料[M].哈尔滨:哈尔滨工业大学出版社,2011.4-6.
[13]李宏运.先进复合材料制造技术[M].北京:化学工业出版社,2004.
[14]王放,曾祥国,魏玉卿,等.纤维增强复合材料拉伸强度的weak-link比例预测[J].四川大学学报(工程科学版),2009,41(4):136-140,150.
[15]LIN J J,WANG X D.Preparation,microstructure,and properties of novel low-κbrominated epoxy/mesoporous silicacom-posites[J].European Polymer Journal,2008,44(5):1414-1427.
[16]Romanes MC,D’Souza NA,Coutinho D,etal.Surfaceand subsurface characterization of epoxy-mesoporous silica composites to clarify tribological properties[J].Wear,2008,265(1-2):88-96.