Abstract
In this study, we have synthesized polyurethane based on monoglyceride and 4.4 '-diphenyl methanediisocyanate (MDI) – an environmentally friendly polymer. Graphene oxite (GO) was used to reinforce for polyurethane forming polyurethane/graphene oxide (PU/GO) nanocomposite. The synthesis of PU and PU/GO was performed directly on the twinscrew extruder. This is a simple, time saving, economical and environmentally friendly method. Nanocomposites were manufactured with GO phase changed from 0.5% to 1.5% by weight. Structural analysis results of PU/GO showed a good dispersion through TEM figure (transmission electron microscopy). In addition, the mechanical and thermal properties of the nanocomposite were improved as compared to the original polyurethane. This study is a new step for the synthesis of polyurethane and nanocomposite based on polyurethane by the melt intercalation method.
Highlights
We have synthesized polyurethane based on monoglyceride and
Nanocomposites were manufactured with Graphene oxite (GO) phase changed from 0.5% to 1.5% by weight
Structural analysis results of polyuretan/graphen oxit (PU/GO) showed a good dispersion through TEM figure
Summary
Chúng tôi nghiên cứu tổng hợp polyuretan (PU) bắt nguồn từ monoglycerid và 4,4′-diphenyl metanediisocyanat (MDI) – một loại polyme thân thiện môi trường. Graphen oxit (GO) cũng được chọn để gia cường cho polyuretan tạo thành nanocompozit polyuretan/graphen oxit (PU/GO). Quá trình tổng hợp PU và PU/GO đều được thực hiện trực tiếp trên máy đùn hai trục vít. Đây là phương pháp đơn giản, tiết kiệm thời gian, mang tính kinh tế và thân thiện môi trường. Các tính chất cơ, nhiệt của nanocompozit cũng được cải thiện hơn so với PU ban đầu. Nghiên cứu là một bước đi mới cho các hướng nghiên cứu tổng hợp polyuretan cũng như nanocompozit trên nền PU bằng phương pháp in-situ nóng chảy. Từ khóa: Polyurethane, nanocomposite PU/GO, graphit oxit, máy đùn hai trục vít
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