Effects of Size and Aggregation/Agglomeration of Nanoparticles on the Interfacial/Interphase Properties and Tensile Strength of Polymer Nanocomposites.
Effects of Size and Aggregation/Agglomeration of Nanoparticles on the Interfacial/Interphase Properties and Tensile Strength of Polymer Nanocomposites.
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DOI：
10.1186/s11671-018-2624-0
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发表时间：
2018-07-17
影响因子：
--
通讯作者：
Rhee KY
中科院分区：
文献类型：
--
作者：
Ashraf MA;Peng W;Zare Y;Rhee KY
在这项研究中，几个简单的方程，建议调查的数量，表面积，硬化效率和比表面积的聚合物纳米复合材料中的纳米粒子的尺寸和密度的影响。此外，纳米颗粒的尺寸和界面相厚度的界面/界面相的性质和纳米复合材料的拉伸强度的作用解释了各种方程。纳米颗粒的聚集体/团聚体也被假定为纳米复合材料中的大颗粒，并讨论了它们对纳米颗粒特性、界面/相间性质和拉伸强度的影响。小尺寸有利地影响纳米颗粒的数量、表面积、硬化效率和比表面积。仅2g半径为10 nm（R = 10 nm）且密度为2g/cm 3的孤立且良好分散的纳米颗粒与聚合物基质产生250 m2的显著界面面积。此外，只有厚的界面不能在纳米复合材料中产生高的界面/界面参数和显著的机械性能，因为填料尺寸和聚集体/附聚物也控制这些术语。结果表明，在大纳米颗粒（R = 50 nm）周围设置一个厚的界面层（t = 25 nm）仅能使B界面参数提高到4左右，而在最小的纳米颗粒和最厚的界面层之间则可获得B = 13。
In this study, several simple equations are suggested to investigate the effects of size and density on the number, surface area, stiffening efficiency, and specific surface area of nanoparticles in polymer nanocomposites. In addition, the roles of nanoparticle size and interphase thickness in the interfacial/interphase properties and tensile strength of nanocomposites are explained by various equations. The aggregates/agglomerates of nanoparticles are also assumed as large particles in nanocomposites, and their influences on the nanoparticle characteristics, interface/interphase properties, and tensile strength are discussed. The small size advantageously affects the number, surface area, stiffening efficiency, and specific surface area of nanoparticles. Only 2 g of isolated and well-dispersed nanoparticles with radius of 10 nm (R = 10 nm) and density of 2 g/cm3 produce the significant interfacial area of 250 m2 with polymer matrix. Moreover, only a thick interphase cannot produce high interfacial/interphase parameters and significant mechanical properties in nanocomposites because the filler size and aggregates/agglomerates also control these terms. It is found that a thick interphase (t = 25 nm) surrounding the big nanoparticles (R = 50 nm) only improves the B interphase parameter to about 4, while B = 13 is obtained by the smallest nanoparticles and the thickest interphase.
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影响因子：
3
作者：
Bikiaris, DN;Papageorgiou, GZ;Karayannidis, GP
通讯作者：
Karayannidis, GP
影响因子：
3
作者：
Montazeri, A.;Naghdabadi, R.
通讯作者：
Naghdabadi, R.
影响因子：
3.3
作者：
Khan, Asifullah;Shamsi, Mohtashim H.;Choi, Tae-Sun
通讯作者：
Choi, Tae-Sun
影响因子：
--
作者：
Ma X;Zare Y;Rhee KY
通讯作者：
Rhee KY
影响因子：
2.5
作者：
Hamdia, Khader M.;Silani, Mohammad;Rabczuk, Timon
通讯作者：
Rabczuk, Timon