Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
Ultrason Sonochem. 2017 Nov;39:686-697. doi: 10.1016/j.ultsonch.2017.05.036. Epub 2017 May 26.
In this work, SiO nanoparticles (NPs) were modified with bovine serum albumin (BSA) under ultrasound irradiations as a green and fast route to achieve their good dispersion. Subsequently, different weight percentages of the modified NPs (3, 6, and 9wt%) were incorporated in poly(vinyl chloride) (PVC) as the matrix. Thermogravimetric analysis of the SiO-BSA NPs indicated that 12wt% of the modifier was loaded on the surface of SiO NPs. Encapsulation of the SiO-BSA resulted in a meaningful improvement in the optical, mechanical and thermal characteristics of the prepared PVC nanocomposites (NCs). X-ray diffraction (XRD) patterns for the PVC/SiO-BSA NCs showed a crystalline behavior for the NC with 6wt% of the SiO-BSA originated from the phosphate buffer on the NPs. Water contact angle of the PVC/SiO-BSA NCs showed that the hydrophilicity enhanced with increasing of the NPs contents.
在这项工作中，通过超声处理将牛血清白蛋白（BSA）修饰的二氧化硅纳米颗粒（NPs），这是一种绿色快速的方法，可实现其良好的分散性。随后，将不同重量百分比的改性 NPs（3、6 和 9wt%）作为基质掺入聚氯乙烯（PVC）中。SiO-BSA NPs 的热重分析表明，表面负载了 12wt%的改性剂。SiO-BSA 的包封显著改善了制备的 PVC 纳米复合材料（NCs）的光学、机械和热性能。对于含有 6wt%SiO-BSA 的 PVC/SiO-BSA NCs，X 射线衍射（XRD）图谱表现出源于 NPs 上的磷酸盐缓冲液的 NC 的结晶行为。PVC/SiO-BSA NCs 的水接触角表明，随着 NPs 含量的增加，亲水性增强。
