Retarded relaxation and breakup of deformed PA6 droplets filled with nanosilica in PS matrix during annealing
Retarded relaxation and breakup of deformed PA6 droplets filled with nanosilica in PS matrix during annealing
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PS 基体中填充纳米二氧化硅的变形 PA6 液滴在退火过程中的延迟松弛和破碎
DOI：
10.1016/j.polymer.2011.08.052
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发表时间：
2011-10
期刊：
影响因子：
4.6
通讯作者：
Li, Guangxian
中科院分区：
文献类型：
--
作者：
Kong, Miqiu;Huang, Yajiang;Chen, Guangling;Yang, Qi;Li, Guangxian
研究了亲水二氧化硅纳米颗粒（SiO2）对聚苯乙烯（PS）基体中不同变形程度的选择性填充聚酰胺（PA6）液滴在静态退火过程中的弛豫和破裂动力学的影响。研究发现，随着二氧化硅含量的增加，PA6液滴的弛豫过程逐渐减慢，弛豫模式也相应改变。随着sio2纳米颗粒含量的增加，PA6液滴的临界断裂长径比（ARcr）也有所提高。将实验值、特征弛豫时间（τd）和破裂时间（tb）与理论值进行了比较。从粘弹性和界面张力的角度对对比结果进行了讨论。分析认为，造成上述现象的原因不是共混物界面张力的变化，而是PA6液滴粘弹性的变化。
The effect of hydrophilic silica nanoparticles (SiO2) on the relaxation and breakup dynamics of selectively filled polyamide (PA6) droplets with different degrees of deformation in polystyrene (PS) matrix during quiescent annealing were in situ investigated. It was found that, with the increase of silica content, the relaxation process of PA6 droplets was slowed down gradually and the relaxation mode was changed correspondingly. The critical break aspect ratios (ARcr) of PA6 droplets were also improved with the increase in SiO2nanoparticle contents. Comparisons of the experimental values of ARcr, characteristic relaxation time (τd) and breakup time (tb) of the SiO2-filled PA6 droplets with corresponding theoretical values were made. The results of comparison were discussed in terms of viscoelasticity and interfacial tension. It was proposed that the alternation of the viscoelastic properties of PA6 droplets in stead of the interfacial tension change of the blends was responsible for the phenomena observed.
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影响因子：
--
作者：
J. W. Barlow
通讯作者：
J. W. Barlow
DOI：
10.1098/rspa.1936.0003
发表时间：
1936
期刊：
Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子：
--
作者：
S. Tomotika
通讯作者：
S. Tomotika
DOI：
10.1002/(sici)1099-0488(19970715)35:9
发表时间：
1997-07
期刊：
Journal of Polymer Science Part B
影响因子：
--
作者：
Shouke Yan;J. Petermann;Decai Yang
通讯作者：
Shouke Yan;J. Petermann;Decai Yang
影响因子：
5.5
作者：
GUBBELS, F;BLACHER, S;TEYSSIE, P
通讯作者：
TEYSSIE, P
影响因子：
2.3
作者：
Hong, Joung Sook;Kim, Yong Kyung;Kim, Chongyoup
通讯作者：
Kim, Chongyoup