Gypsum Plaster is an important building materials, and because of the availabilty its raw materials. In this research effect various additives on properties plaster was studied , like Polyvinyl Acetate, Furfural, Fumed Silica at different rate addition two types fibers, Carbon Fiber Polypropylene to a volumetric rate. It found that after analysis results use Furfural as additive by 2.5% optimum...

Technological developments have prompted the production of highly advanced smartphones. However, various features cause smartphones to heat up quickly and emit more electromagnetic radiation, which harms human health. Smartphone protection is needed solve these issues. This study aims create a film from S. trifasciata plant based on polyvinyl alcohol (PVA) reduce thermal radiation plants were m...