Polycarbonate pdf
A polycarbonate molecule is composed by a Bisphenol A part and a carbonate group. This amorphous structure gives the polymer its particular transparency. A true industrial thermoplastic, PC ( polycarbonate ) is widely used in automotive, aerospace, medical and many other applications. PC offers accuracy, durability and stability, creating strong parts that withstand functional testing.
Unfilled Polycarbonate is a tough, transparent engineering thermoplastic which offers very high impact strength and high modulus of elasticity.
It also has a high heat deflection temperature and absorbs very little moisture. These properties, plus good low frequency and high voltage. PC is used primarily in the injection molding sector, bar application with a high level of stress. The main properties of this material are good mechanical stability, exceptionally high impact resistance, high form stability in heat as . Physical Properties ical Properties. Specific Gravity ific Gravity.
Water Absorption r Absorption.
The glass transition point of polycarbonate obtained from the inflection point of refractive index is. In addition, the glass transition point obtained by the measurement of expansion coefficient, specific heat, differential thermal analysis, and viscoelasticity, etc. Conducted over a 52-week perio the evaluation measured five properties at temperatures ranging from -°C to 1° C. Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. MAKROLON GP polycarbonate sheet is . Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent.
They are easily worke molde and thermoformed. Because of these properties, polycarbonates . Upper working temperature : 115–1°C. Heat deflection temperature : 0. Lower working temperature : −°C (−°F) Linear thermal expansion coefficient (α) : 65–70. Quality aesthetics right down to the last wall . Product Brochures Multiwall sheets.
Coefficient of linear thermal ex- pansion. Nail indentation hardness.
MATERIAL SAFETY DATA SHEET. PRODUCT NAME: Polycarbonate. Abstract: The thermal imprint process of polymer micro-patterning is widely applied in areas such as manufacturing of optical parts, solar energy, bio- mechanical devices and chemical chips. Polycarbonate (PC), as an amorphous polymer, is often used in thermoforming processes because of its good . A and diphenyl carbonate was studied for the synthesis of polycarbonate.
In the melt-polymerization process, a partial loss of diphe- nyl carbonate occurs as the reaction by-product phenol is removed from the reactor. To obtain a high molecular weight polymer under high . The polycarbonate was a bis phenol-A based molding material. Two styrene homopolymers were.
Reprocessing reduces the impact resistance and worsens the tensile properties at break, but no influence on the modulus of elasticity or on the yield . Chemical profile: Polycarbonate resin, ICB Americas-ICIS. Migration of bisphenol A from polycarbonate plastic of different qualities. Environmental project No.