Characteristics of Polycarbonate Soft Segment-Based Thermoplastic Polyurethane

The pre-experiment of the present study revealed that polyurethane (PU) synthesized using poly (hexamethylene carbonate) glycol (PHC) has high melt viscosity and is difficult to process. Therefore, (trimethylene (PTC) was employed synthesize a PU product with low viscosity. First, four types thermoplastic (TPU) were formed through one-step solvent-free synthesis. TPU presented in format “TPU-X-Y,” X representing polyol (PTC or PHC, around 1000 molecular weight) Y chain extender (1,3-propane diol [PDO] 1,4-butane [BDO]) used. fixed molar ratio (isocyanate):(polyol):(chain extender) = 2:1:1 compared. results indicated entanglement often occurred among long carbon chains PHC. property PTC, namely converting polarity into reverse temperatures, resolve PHC series, which causes processing difficulties. TPU-PTC-PDO exhibited favorable arrangements. Given its polarity, outstanding tensile properties (strength at break: 41.10 ± 10.78 MPa; 100% modulus 6.73 0.12 MPa), making lower temperatures (180 190 °C) feasible. With inclusion polycarbonate exhibits advantages suitable for wide range applications.