引用本文:
王红霞, 张高勇, 刘滇生, 张新伟, 肖永红. 层状液晶的小振幅振荡频率扫描研究[J]. 物理化学学报,
2005, 21(12): 1411-1414.
doi:
10.3866/PKU.WHXB20051217
Citation: WANG Hong-Xia, ZHANG Gao-Yong, LIU Dian-Sheng, ZHANG Xin-Wei, XIAO Yong-Hong. Small Amplitude Oscillation Frequency Sweep of Lamellar Liquid Crystal[J]. Acta Physico-Chimica Sinica, 2005, 21(12): 1411-1414. doi: 10.3866/PKU.WHXB20051217
Citation: WANG Hong-Xia, ZHANG Gao-Yong, LIU Dian-Sheng, ZHANG Xin-Wei, XIAO Yong-Hong. Small Amplitude Oscillation Frequency Sweep of Lamellar Liquid Crystal[J]. Acta Physico-Chimica Sinica, 2005, 21(12): 1411-1414. doi: 10.3866/PKU.WHXB20051217
层状液晶的小振幅振荡频率扫描研究
摘要:
利用小振幅振荡频率扫描研究了非离子表面活性剂所形成的层状液晶的粘弹性, 考察了表面活性剂的浓度、温度, 硝酸银的加入和银的生成对其影响. 结果表明: 储能模量(G′)和损耗模量(G″)随表面活性剂浓度增大而增大; 随温度升高出现三种不同的频率扫描曲线; 硝酸银的加入和银的生成对曲线的形状没有影响, 对G′和G″值的影响随过渡区和单相区的不同而不同.
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关键词:
- 层状液晶;流变性;频率扫描
English
Small Amplitude Oscillation Frequency Sweep of Lamellar Liquid Crystal
Abstract:
The viscoelastic properties of lamellar liquid crystal, formed by non-ionic surfactant, were studied with small amplitude oscillation frequency sweep, and the effects of surfactant concentration, temperature , AgNO3 and as-produced Ag on them were investigated. The results show that, storage modulus (G′) and loss modulus(G″)increase with increasing surfactant concentration; three different kinds of frequency sweep curves appear with increasing temperature; AgNO3 and as-produced Ag have no effects on the shape of curves, but their effects on the magnitude of G′and G″are different for transitional and pure lamellar phases.
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