Your browser doesn't support javascript.
loading
The Facile Synthesis and Application of Mesoporous Silica Nanoparticles with a Vinyl Functional Group for Plastic Recycling.
Lee, Jong-Tak; Kang, Misun; Bae, Jae Young.
Afiliação
  • Lee JT; Department of Chemistry, Keimyung University, Daegu 42601, Republic of Korea.
  • Kang M; Department of Chemistry, Keimyung University, Daegu 42601, Republic of Korea.
  • Bae JY; Department of Chemistry, Keimyung University, Daegu 42601, Republic of Korea.
Int J Mol Sci ; 25(4)2024 Feb 15.
Article em En | MEDLINE | ID: mdl-38396972
ABSTRACT
Due to growing concerns about environmental pollution from plastic waste, plastic recycling research is gaining momentum. Traditional methods, such as incorporating inorganic particles, increasing cross-linking density with peroxides, and blending with silicone monomers, often improve mechanical properties but reduce flexibility for specific performance requirements. This study focuses on synthesizing silica nanoparticles with vinyl functional groups and evaluating their mechanical performance when used in recycled plastics. Silica precursors, namely sodium silicate and vinyltrimethoxysilane (VTMS), combined with a surfactant, were employed to create pores, increasing silica's surface area. The early-stage introduction of vinyl functional groups prevented the typical post-synthesis reduction in surface area. Porous silica was produced in varying quantities of VTMS, and the synthesized porous silica nanomaterials were incorporated into recycled polyethylene to induce cross-linking. Despite a decrease in surface area with increasing VTMS content, a significant surface area of 883 m2/g was achieved. In conclusion, porous silica with the right amount of vinyl content exhibited improved mechanical performance, including increased tensile strength, compared to conventional porous silica. This study shows that synthesized porous silica with integrated vinyl functional groups effectively enhances the performance of recycled plastics.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Silanos / Compostos de Vinila / Nanoestruturas / Nanopartículas Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Silanos / Compostos de Vinila / Nanoestruturas / Nanopartículas Idioma: En Ano de publicação: 2024 Tipo de documento: Article