Le matériau PS, également connu sous le nom de polystyrène, est un thermoplastique synthétisé par polymérisation radicale libre du monomère de styrène. Its chemical formula is (C8H8) n, and it has the characteristics of colorless transparency, high transparency, high hardness, and high glass transition temperature. Polyformaldéhyde
caractéristiques physiques
The glass transition temperature of polystyrene is higher than 100 ℃, so it is often used to make disposable containers and foam lunch boxes that need to withstand the boiling water temperature12. Its density is 1.04-1.06 grams per cubic centimeter, melting temperature is 240 ℃, hot deformation temperature is between 70-100 ℃, and long-term use temperature is 0-70 ℃. Polystyrène de qualité générale
propriétés chimiques
Polystyrene has excellent thermal insulation, insulation, and transparency, excellent electrical properties, high volume resistivity and surface resistivity, and is not affected by temperature and humidity changes. De plus, le polystyrène peut soulager le stress et augmenter sa température de déformation thermique de 5 à 6 ℃ après le traitement du traitement.
zone d'application polyformaldéhyde
Polystyrene is widely used in light industrial products, daily ornaments, lighting and packaging fields, such as plastic boxes, foam boards, etc. 3 because of its transparent, inexpensive, insulating and other characteristics. In addition, polystyrene can also be used in cosmetics as a filling material for powder and emulsion cosmetics, improving the viscosity of the powder.