What are the units of glass transition temperature? Which type of polymers undergo glass transition? What are the examples of polymers with high or low Tg? What is the difference …

Polyoxymethylene (POM), also known as acetal, [4] polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and …

What is Glass Transition Temperature (Tg)? Glass transition temperature is the temperature at which an amorphous polymer changes from a hard/glassy state to a soft/leathery state, or vice …

The glass transition temperature (Tg) is a critical temperature for polymers and plastics, marking the point at which these materials transition from a hard, brittle, and glassy state to a softer, …

The Tg of POM depends on its molecular weight; however, for molecular weight higher than 70,000, the Tg remains stable (Chiang and Huang, 1997). The mechanical properties of POM …

POM homopolymer sample has 1mm thickness, its crystallinity ratio is close to 63% and a melting temperature of 180°C (DSC). First, glass transition can be observed from -70°C to -20°C, …

The high degree of crystallinity of POM-H is reflected in the above DSC curve. It is dominated by a distinctive melting effect at 183°C (1st heating, blue, peak temperature) and 181°C (2nd …

Polyoxymethylene (POM), also known as acetal, polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts that require high stiffness, low friction and …

2024年12月17日 · Tg for most synthetic polymers ranges from 170K to 500K (-103°C to 227°C). Polymer thermal properties are strongly dependent on Tg. Polymers show glassy behavior, …

The glass transition temperature is generally indicated as Tg. Tg is a physical quantity that is determined by the type of plastic. By knowing the value of Tg, it is possible to estimate the …