剪切增稠胶流变性能及其抗冲击性能研究
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摘要
介绍了剪切增稠胶(STG)的研制,在不同温度条件下制备STG来探究STG性能。采用流变仪测试STG性能,分析不同压力下的蠕变―回复曲线,表明随着施加压力的增加STG具有较大的蠕变量,卸载应变后STG应变随时间基本不变;对STG进行频率扫描得到材料在外界高频率条件刺激下其储能模量增大了将近4个数量级,材料表现出了典型的剪切变硬性能;对STG进行振幅扫描,得到材料的线性极限为3%,该应变为材料从线性到非线性转变的临界应变点,对于大多数样品来说,在应变幅值扫描范围内G'始终大于G″,表明STG在整个形变范围内呈现出固态特性;对STG进行落锤冲击测试,对其力学行为进行了探讨,结果表明随着冲击速度的增大,STG的能量吸收系数变大60%,说明STG具有较好的能量吸收特性及良好的抗冲击性能。
The preparation of shear thickening gel( STG) under different temperature conditions was introduced and the performance of STG was investigated. The rheometer was used to test the STG performance,and the creep-resilience curves under different pressures were analyzed. It was shown that the shear thickening gel had larger creep as the pressure increasing,and the STG strain was basically unchanged with time after unloading the strain. The frequency scan of the STG results showed that the material highfrequency stimulated storage modulus increased nearly four orders of magnitude,and the material exhibited typical shear hardening properties. And the amplitude scanning of the STG results indicated that the linear limit was 3%. The strain was the critical strain point of the material transition from linear to nonlinear. For most samples,G' was always greater than G″ within the strain amplitude sweep range. It showed that STG exhibited solid state properties throughout the deformation range. The drop weight impact test was applied on the STG to obtain the mechanical performance. The results show that as the increase of the impact velocity,the energy absorption coefficient of the STG could increase to 60%. It indicates that STG has good energy absorption characteristics and good impact resistance.
The preparation of shear thickening gel( STG) under different temperature conditions was introduced and the performance of STG was investigated. The rheometer was used to test the STG performance,and the creep-resilience curves under different pressures were analyzed. It was shown that the shear thickening gel had larger creep as the pressure increasing,and the STG strain was basically unchanged with time after unloading the strain. The frequency scan of the STG results showed that the material highfrequency stimulated storage modulus increased nearly four orders of magnitude,and the material exhibited typical shear hardening properties. And the amplitude scanning of the STG results indicated that the linear limit was 3%. The strain was the critical strain point of the material transition from linear to nonlinear. For most samples,G' was always greater than G″ within the strain amplitude sweep range. It showed that STG exhibited solid state properties throughout the deformation range. The drop weight impact test was applied on the STG to obtain the mechanical performance. The results show that as the increase of the impact velocity,the energy absorption coefficient of the STG could increase to 60%. It indicates that STG has good energy absorption characteristics and good impact resistance.
引文
[1]蒋伟峰.剪切增稠材料的力学性能表征及机理研究[D].合肥:中国科学技术大学,2015.
[2]徐钰蕾.剪切增稠液的性能表征及其防护应用研究[D].合肥:中国科学技术大学,2012.
[3] FISCHER C,BRAUN S A,BOURBAN P,et al. Dynamic properties of sandwich structures with integrated shear-thickening fluids[J]. Smart Mater Struct,2006,15(5):1467.
[4]周鸿,郭朝阳,宗路航,等.剪切增稠液及阻尼器性能研究[J].振动与冲击,2013,32(18):15-20.
[5] HASIB M T, YE L, CHANG L. Vibration control of sandwich structure by integration of shear thickening fluid(STF)[J]. Recent Adv Struct Integrity Anal-Proc Int Congress(APCF/SIF-2014),2014:534-538.
[6]王胜.多功能剪切变硬胶复合材料的研制与性能研究[D].合肥:中国科学技术大学,2017.
[7]蔡亮,蒋伟峰,张泰华.剪切增稠胶剪切条件下的黏弹性能及其力学性能改性[J].功能材料,2017,48(8):181-185.
[8] GOERTZ M P,ZHU X Y,HOUSTON J E. Temperature dependent relaxation of a “solid-liquid”[J]. J Polym Sci,Part B:Polym Phys,2009,47(13):1285-1290.
[9]夏艳丽,俞科静,钱坤,等. STG/IP稀释比对STG/PU复合材料低速抗冲击性能的影响[J].塑料工业,2017,45(10):83-87.
[10]李峰,彭彬超,张博文,等.剪切增稠凝胶及制备方法和有剪切增稠效应的防破片织物:104862975B[P].2015-08-26.
[11]薛亚静,林兰天,张福乐,等.剪切增稠流体运用于低速冲击防护的研究[J].上海纺织科技,2014(10):9-12.
[12]路瑶.剪切增稠流体的流变行为研究及其在防刺材料中的应用[D].上海:东华大学,2014.
[13]冯新娅.剪切增稠流体的动态响应及其在防护结构中的应用[D].北京:北京理工大学,2014.
[14] TAN V B C,TAY T E,TEO W K. Strengthening fabric armour with silica colloidal suspensions[J]. Int J Solids Struct,2005,42(5):1561-1576.
[15]蒋瑾.防护低速冲击的纺织组合材料的开发与研究[D].上海:上海工程技术大学,2016.
[16] CROSS R. Elastic and viscous properties of silly putty[J].Am J Phys,2012,80(10):870-875.
[17]陆振乾.剪切增稠液浸渍经编间隔织物柔性复合材料冲击压缩性能[D].上海:东华大学,2014.
[18] WANG S,JIANG W,JIANG W,et al. Multifunctional polymer composite with excellent shear stiffening performance and magnetorheological effect[J]. J Mater Chem C,2014,2(34):7133-7140.
[19]高庆,林松,杨显杰.丁基橡胶黏弹性材料的非线性蠕变本构描述[J].应用力学学报,2007,24(3):386-390.
[20] TIAN T,LI W,DING J,et al. Study of shear-stiffened elastomers[J]. Smart Mater Struct, 2012, 1542(12):125009.
[2]徐钰蕾.剪切增稠液的性能表征及其防护应用研究[D].合肥:中国科学技术大学,2012.
[3] FISCHER C,BRAUN S A,BOURBAN P,et al. Dynamic properties of sandwich structures with integrated shear-thickening fluids[J]. Smart Mater Struct,2006,15(5):1467.
[4]周鸿,郭朝阳,宗路航,等.剪切增稠液及阻尼器性能研究[J].振动与冲击,2013,32(18):15-20.
[5] HASIB M T, YE L, CHANG L. Vibration control of sandwich structure by integration of shear thickening fluid(STF)[J]. Recent Adv Struct Integrity Anal-Proc Int Congress(APCF/SIF-2014),2014:534-538.
[6]王胜.多功能剪切变硬胶复合材料的研制与性能研究[D].合肥:中国科学技术大学,2017.
[7]蔡亮,蒋伟峰,张泰华.剪切增稠胶剪切条件下的黏弹性能及其力学性能改性[J].功能材料,2017,48(8):181-185.
[8] GOERTZ M P,ZHU X Y,HOUSTON J E. Temperature dependent relaxation of a “solid-liquid”[J]. J Polym Sci,Part B:Polym Phys,2009,47(13):1285-1290.
[9]夏艳丽,俞科静,钱坤,等. STG/IP稀释比对STG/PU复合材料低速抗冲击性能的影响[J].塑料工业,2017,45(10):83-87.
[10]李峰,彭彬超,张博文,等.剪切增稠凝胶及制备方法和有剪切增稠效应的防破片织物:104862975B[P].2015-08-26.
[11]薛亚静,林兰天,张福乐,等.剪切增稠流体运用于低速冲击防护的研究[J].上海纺织科技,2014(10):9-12.
[12]路瑶.剪切增稠流体的流变行为研究及其在防刺材料中的应用[D].上海:东华大学,2014.
[13]冯新娅.剪切增稠流体的动态响应及其在防护结构中的应用[D].北京:北京理工大学,2014.
[14] TAN V B C,TAY T E,TEO W K. Strengthening fabric armour with silica colloidal suspensions[J]. Int J Solids Struct,2005,42(5):1561-1576.
[15]蒋瑾.防护低速冲击的纺织组合材料的开发与研究[D].上海:上海工程技术大学,2016.
[16] CROSS R. Elastic and viscous properties of silly putty[J].Am J Phys,2012,80(10):870-875.
[17]陆振乾.剪切增稠液浸渍经编间隔织物柔性复合材料冲击压缩性能[D].上海:东华大学,2014.
[18] WANG S,JIANG W,JIANG W,et al. Multifunctional polymer composite with excellent shear stiffening performance and magnetorheological effect[J]. J Mater Chem C,2014,2(34):7133-7140.
[19]高庆,林松,杨显杰.丁基橡胶黏弹性材料的非线性蠕变本构描述[J].应用力学学报,2007,24(3):386-390.
[20] TIAN T,LI W,DING J,et al. Study of shear-stiffened elastomers[J]. Smart Mater Struct, 2012, 1542(12):125009.
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