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  • Recyclability of cellulose acetate butyrate (CAB) matrix for controllable and productive fabrication of thermoplastic nanofibers
  • 来源:王栋教授个人网站 2015-03-23
  • A high-throughput, controllable and environmentally benign fabrication process of thermoplastic
    nanofibers with a biobased material, cellulose acetate butyrate (CAB) as the matrix was recently reported.
    To prove the recyclability of the CAB, a method was proposed to theoretically demonstrate the ability
    of the recycled polymer for repeated melt extrusions based on a comparison of thermal degradation
    and flow activation energy of the recycled polymers. The flow activation energy was derived from rheological
    behaviors of the original and recycled CAB at different temperatures. The thermogravimetric
    analysis (TGA) was utilized to characterize the thermal degradation behaviors of the polymer. The change
    in the number average molecular weight of the recycled CAB was studied by measuring the intrinsic
    viscosity and the Mark-Houwink equation. To display the practical recyclability, the recycled CAB
    was successfully employed to serve as the matrix for the preparation of iPP (polypropylene), PTT (poly
    trimethylene terephthalate) and PE-co-GMA (poly (ethylene-co-glycidyl methacrylate)) nanofibers. The
    proposed quantitative method could be extended to evaluate the recyclability of the other thermoplastics.
  • [来源:中国聚合物网]
  • 了解更多请进入: 王栋教授个人网站
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