Copper-Doped Zinc Oxide Nanoparticles: Influence on Thermal, Thermo Mechanical, and Tribological Properties of Polycarbonate
Copper-Doped Zinc Oxide Nanoparticles: Influence on Thermal, Thermo Mechanical, and Tribological Properties of Polycarbonate
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DOI：
10.1002/pc.24315
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发表时间：
2018-06-01
影响因子：
5.2
通讯作者：
Parate, Vishal R.
中科院分区：
文献类型：
--
作者：
Charde, Sarita J.;Sonawane, Shriram S.;Parate, Vishal R.
在现有的研究中，已经尝试使用掺杂有铜的无机ZnO纳米颗粒（ZnCuO）来开发耐刮擦的聚碳酸酯（PC）纳米复合材料。采用共沉淀法制备了ZnCuO纳米粒子，并采用磷酸乙基己酯（PAEH）对纳米粒子进行了表面修饰。使用AFM证实纳米颗粒的尺寸范围为约55-75 nm。TGA、FTIR和NMR证实了纳米颗粒的改性，XRD证实了由于掺杂导致的尺寸减小。采用熔融挤出法制备了PC/ZnCuO纳米复合材料（PCNC），并对其热性能、热机械性能和摩擦学性能进行了研究。使用FE-SEM图像的分散研究揭示了聚集体的存在。TGA和DSC热分析表明PCNC的稳定性降低。发现PCNC表现出更好的储能模量，与纯PC相比，纳米颗粒的负载量为3wt%时，储能模量提高了23%。PCNC的摩擦学研究表明，在3%PCNC的情况下，摩擦系数的近14%的有利的递减。(C)2017年塑料工程师学会
In the existing study, an attempt has been made to develop scratch resistant polycarbonate (PC) nanocomposites using inorganic ZnO nanoparticles doped with copper (ZnCuO). The ZnCuO nanoparticles were synthesized using co-precipitation method and modified using phosphoric acid ethyl hexyl ester (PAEH). The size range of nanoparticles was confirmed to be around 55-75 nm using AFM. TGA, FTIR, and NMR confirmed modification of nanoparticles and XRD approved of size reduction due to doping. PC/ZnCuO nanocomposites (PCNC) with a loading of 1%, 3% and 5% by weight were prepared by melt extrusion and an evaluation of thermal, thermo-mechanical, and tribological properties were carried out. The dispersion study using FE-SEM images revealed the presence of aggregates. Thermal analyses using TGA and DSC indicated a decrement in stability for PCNC. The PCNC was found to exhibit better storage modulus with an enhancement of 23% with a 3 wt% loadings of nanoparticles as compared to pure PC. The tribological study of PCNC indicated a favorable decrement of a coefficient of friction by nearly 14% in the case of 3% PCNC. (C) 2017 Society of Plastics Engineers