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The valorization of single-use plastics (SUPs) from carbonated drinks into a new mechanically reinforced material is proposed in this work. Cellulose from SUPs is extracted and hydrolyzed with sulfuric acid to obtain nanocrystalline cellulose (CNC) which was structural and thermally characterized. CNC was grafted onto methyl methacrylate (MMA) to obtain the PMMA-g-CNC reinforcement agents which were dispersed into interpenetrating polymer networks (IPNs) based on poly(methyl methacrylate) (PMMA)/poly (urethane) (PU). An optimal reinforcement of the tensile properties was found when 0.1 wt% of PMMA90-g-CNC10 is dispersed into an 80/20 ratio of PMMA/PU.

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Reinforcement of Mechanical Properties of PMMA/PU IPNs with Modified-CNC from Disposable Cups

  • 会议论文

  • 发表日期：

    2026年

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  • M. E. Juárez-Méndez,
  • S. B. Brachetti-Sibaja,
  • D. Palma-Ramírez,
  • J. Gudiño-Sanchez

摘要

The valorization of single-use plastics (SUPs) from carbonated drinks into a new mechanically reinforced material is proposed in this work. Cellulose from SUPs is extracted and hydrolyzed with sulfuric acid to obtain nanocrystalline cellulose (CNC) which was structural and thermally characterized. CNC was grafted onto methyl methacrylate (MMA) to obtain the PMMA-g-CNC reinforcement agents which were dispersed into interpenetrating polymer networks (IPNs) based on poly(methyl methacrylate) (PMMA)/poly (urethane) (PU). An optimal reinforcement of the tensile properties was found when 0.1 wt% of PMMA90-g-CNC10 is dispersed into an 80/20 ratio of PMMA/PU.