首页|Thermal conductivity of ethylene-vinyl acetate copolymers with different vinyl acetate contents dependent on temperature and crystallinity

Thermal conductivity of ethylene-vinyl acetate copolymers with different vinyl acetate contents dependent on temperature and crystallinity

扫码查看
In this work, the thermal conductivity of a series of ethylene-vinyl acetate copolymers (EVAs) with different vinyl acetate (VAc) contents at different temperatures are measured by the transient hot line method. It is found that the thermal conductivity of a series of EVA samples with different VAc contents decreased smoothly with increasing temperature at temperatures from -20 to 80 degrees C. Meanwhile, the crystallinity and melting point of a series of EVA samples are determined by differential scanning calorimetry (DSC), and an empirical formula between the thermal conductivity of EVA and temperature and crystallinity is established by using a data-fitting method. The theoretical calculation of thermal conductivity obtained from this empirical formula is compared with the measured results, and the error is within 5%. Therefore, this empirical formula is for guidance for predicting the thermal conductivity of EVA samples with different VAc contents at different temperatures in the future.

Ethylene-vinyl acetate copolymerVinyl acetate contentCrystallinityThermal performanceEmpirical formulaNONISOTHERMAL CRYSTALLIZATIONGLASS-TRANSITIONCROSS-LINKINGBEHAVIORCOMPOSITE

Jia, Yu、Zhang, Jun

展开 >

Nanjing Tech Univ

2022

Thermochimica Acta

Thermochimica Acta

EISCI
ISSN:0040-6031
年,卷(期):2022.708
  • 6
  • 38