Lifetime prediction of commercial HDPE films and increasing theirdurability

The aim of this study was to propose a lifetime prediction model of aging HDPE (high densitypolyethylene) net shade films by thermogravimetric analysis (TGA) and Arrhenius equations. Thelifetime of HDPE was further increased by adding conventional and novel UV absorbent ofbenzophenone, alizarin-red, and thiacalix[۴]arene. The structure and morphology of the samples werestudied by FTIR, AFM and solubility tests, and the thermal property was investigated in details byDMTA, DSC, and OIT analysis. The extension of lifetime was preformed by ۳, ۵, and ۱۰ % loads ofUV absorbent. The optimum lifetime prediction was recorded for ۵% loads of UV absorbent whichrevealed a ۲۵۹, ۸۴۶, and ۱۲۲۴ day extension in aging for benzophenone, alizarin red, andthiacalix[۴]arene respectively to show the best performance for Thiacalix[۴]arene macrocycle.

کلیدواژه ها:

Polymer films ، Lifetime prediction ، HDPE shade ، UV absorbents ، Thiacalix[۴]arene