Status : Verified
| Personal Name | Deang, Michael Sean P. |
|---|---|
| Resource Title | Effect of temperature and solvent composition on the properties of chemically recovered polyethylene from waste plastic laminates using D-limonene and xylene |
| Date Issued | 21 January 2021 |
| Abstract | Chemical recycling of plastic wastes using the Dissolution-Reprecipitation method has been identified as a feasible process to combat the growing solid waste plastic problem in the Philippines. This study aimed to quantitatively analyze the effect of different parameters namely, dissolution temperature, solvent type, and non-solvent/solvent ratio-to the solubility and recovery of PE from plastic laminates. The solubility of PE in D-limonene/xylene in pure and mixed solvents, between temperatures of 80°C t o 100°C was modeled. Modelling the dimensionless Excess Gibbs Energy, PE activity coefficients using a a quadratic function of the solvent ratios, and the solubility as a quadratic function of the solvent mixing ratio resulted to percent deviations ranging from 1 to 8%. A linear and multilinear regression model as functions of the solvent volume fractions and dissolution temperature to predict the percent crystallinity of the recovered PE was developed and predicted crystallinities to up to 0.5% deviation. Dissolution of laminates at 100 compared to 90 , which is closer to the melting point caused increase diffusion of the solvent to the free volumes of the PE, highly affecting the composition and thermal properties of the recovered PE from the 2-layer and 3-layer films. |
| Degree Course | MS Chemical Engineering |
| Language | English |
| Keyword | chemical recycling; polymers; polyethylene |
| Material Type | Thesis/Dissertation |
Preliminary Pages
831.62 Kb
Category : P - Author wishes to publish the work personally.
Access Permission : Limited Access