DSC Phân tích nhiệt dành cho các sản phẩm nhựa

Differential Scanning Calorimeter mple and reference in the will calculate the calorie different independent system : exothermic/endothermic reaction Glass transition temp Henergy for molecular vibrate C X  H C X Semi-crystalline polymers contain both amorphous crystalline phases Properties dominated by both Tg and Tm Semi-Crystalline Semi-crystalline polymers can Polymer exhibit additional crystallization during he Tm    Temp  Molecular crystal arrangement need energy Time  Molecular crystal arrangement need time With temperature increase, the molecular chain has higher en binding e and beco polymer Factor  soft chain, symmetry, crystallinity, entropy… Melting heat  the energy for melting crystal lattice (ΔHm) Crystallinity calculation  △Ho = △Hm － △ Hc Cry % = △Ho/115 = ( Cry Tm2 crystal start Reactor 20B01 20E01 25B01/02 H 25E01 Longer SSPtime: only single peak (melting point) Longer SSPtime: high crystallinity (58.3%) Cavity 29g PF 300.00°C at 20.00°C/min Tc1 PF