Ma, Yangmin; Lei, Rui; Yang, Xiufang; Yang, Fangzhou published the artcile< Eco-friendly Waterborne Alkyd Resin from Polyethylene Terephthalate Waste>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is waterborne alkyd resin polyethylene terephthalate waste recycling thermomech property.
This work reports a simple and eco-friendly way of recycling polyethylene terephthalate (PET) waste. PET waste was glycolyzed using trimethylolpropane (TMP) giving tetra-functional glycolyzate, to prepare alkyd resin. 0.25% ZnOAc and the TMP to PET molar ratio of 12:1 at 220°C produced the best yield of glycolyzate. The obtained glycolyzate was characterized by Fourier transform IR spectroscopy (FTIR) spectroscopy, 1H and 13C NMR (NMR) and further used in the synthesis of alkyd resins. The properties of the prepared alkyd resins including acid value, the pencil hardness, chem. resistance and thermal stability, were investigated. The pencil hardness of the cured resins film is 3H, which is better than the com. alkyd resin YF-155. Thermogravimetric anal. (TGA) exhibited polymer decomposition occurred above 160°C. When compared to com. coatings, Zanthoxylum bungeanum seed oil (ZSO)-based alkyd resin from postconsumer PET bottles has potential for com. applications, and may even be superior in thermal and chem. resistance.
Journal of Polymers and the Environment published new progress about Acid number. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics