Effect of Monomer Composition on the Core–Shell Structure and Expansion Performance of Thermally Expandable Microspheres DOI Open Access
Deli Yang, Yanxiang Wang, Yanqiu Feng

et al.

Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(4), P. 163 - 163

Published: March 28, 2025

This study investigated the effect of different monomer compositions acrylonitrile (AN) and methyl methacrylate (MMA) on synthesis expansion performance thermally expandable microspheres (TEMs). TEMs with ratios, specifically AN to MMA ratios 100:0, 90:10, 80:20, 70:30, were synthesized via free radical suspension polymerization. The inner morphology, crystallinity, blowing agent encapsulation efficiency, ratio analyzed using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), other characterization techniques. results showed that as content reaction time increased, internal structure microsphere shell became more uniform, its thickness increased. Notably, P(AN:MMA)(90:10) exhibited lowest temperature highest ratio. provides a theoretical basis for further optimization TEM processes.

Language: Английский

Effect of Monomer Composition on the Core–Shell Structure and Expansion Performance of Thermally Expandable Microspheres DOI Open Access
Deli Yang, Yanxiang Wang, Yanqiu Feng

et al.

Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(4), P. 163 - 163

Published: March 28, 2025

This study investigated the effect of different monomer compositions acrylonitrile (AN) and methyl methacrylate (MMA) on synthesis expansion performance thermally expandable microspheres (TEMs). TEMs with ratios, specifically AN to MMA ratios 100:0, 90:10, 80:20, 70:30, were synthesized via free radical suspension polymerization. The inner morphology, crystallinity, blowing agent encapsulation efficiency, ratio analyzed using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), other characterization techniques. results showed that as content reaction time increased, internal structure microsphere shell became more uniform, its thickness increased. Notably, P(AN:MMA)(90:10) exhibited lowest temperature highest ratio. provides a theoretical basis for further optimization TEM processes.

Language: Английский

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