@article{article_961843, title={Influence of particle size, additive ratio and chemical structure of zinc borate on thermal and mechanical properties of polyvinyl chloride}, journal={Journal of Boron}, volume={6}, pages={387–394}, year={2021}, DOI={10.30728/boron.961843}, author={İpek, Yeliz}, keywords={Çinko borat, PVC, mekanik özellikler, kompozit, alev geciktirici, duman bastırıcı}, abstract={Zinc borate (ZB) is a flame retardant and smoke supressant compound of boron. It is widely used to achieve flame resistant polymer composites. Polyvinyl chloride (PVC) is one of the commercially important polymers mostly used for cable insulating, pen and door, pipes, floorings, toys etc.. On the other hand, PVC relases toxic gases during fire as decomposition products. Zinc borate doping is thought to be a solution for this problem. However, this solution leads a new problem. Zinc borate effects the mechanical properties of PVC. Mechanical properties of composites were determined by tensile test, impact test, hardness test and thermomechanical behaviours were detected with dynamic mechanical analysis (DMA). In the present study, to optimize the contribution of zinc borate, the powder with different formulations (2ZnO·3B2O3·3.5H2O and 4ZnO·B2O3·H2O), with different additive ratios (1% and 5% by weight) and different particle sizes (nano‒sized and micro‒sized) were added to the PVC structure and the mechanical and thermomechanical properties of each composite were investigated.}, number={4}, publisher={TENMAK Bor Araştırma Enstitüsü}, organization={BOREN}