Abstract
Nano-modification of polyester has become a research hotspot due to the growing demand for high-performance polyester. As a functional carrier, silica nanoparticles show large potential in improving crystalline properties, enhancing strength of polyester, and fabricating fluorescent polyester. Herein, we briefly traced the latest literature on synthesis of silica modifiers and the resultant polyester nanocomposites and presented a review. Firstly, we investigated synthesis approaches of silica nanoparticles for modifying polyester including sol-gel and reverse microemulsion technology, and their surface modification methods such as grafting silane coupling agent or polymer. Then, we summarized processing technics of silica-polyester nanocomposites, like physical blending, sol-gel processes, and in situ polymerization. Finally, we explored the application of silica nanoparticles in improving crystalline, mechanical, and fluorescent properties of composite materials. We hope the work provides a guideline for the readers working in the fields of silica nanoparticles as well as modifying polyester.
Highlights
Polyester is the most widely used material in textiles, packaging, engineering plastics, and other fields due to its excellent performance such as high hardness, low density, and good transparency [1,2,3,4]
In the past few years, great progress progress was in achieved in improving performance of polyester
silica nanoparticles (SNs) act as both crystal nucleus and gelation composites
Summary
Polyester is the most widely used material in textiles, packaging, engineering plastics, and other fields due to its excellent performance such as high hardness, low density, and good transparency [1,2,3,4]. Reverse microemulsion method was used to synthesize silica-based nanocomposites with different structures, and these structures were of decisive significance for their properties and applications [42]. To obtain high-performance SNs/polyester composites, material composite methods are crucial even though the dispersibility of SNs was greatly improved after surface modification [61,62,63]. Silica-based nanocomposites have been reviewed in detail by several researchers in their synthesis methods, properties, and applications [90,91,92,93]. It can be seen that silica-based nanocomposites have made important research progress and have been widely used in practice These reviews mainly introduced SNs/polymer composites and did not focus on fabrication and application of SNs/polyester composites. We expect that this review provides guidance and assistance to researchers engaged in the polymer composite field
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