Davy K W, Braden M
Dental School, Royal London Hospital Medical College IRC for BiomedicalMaterials, University of London, UK.
Biomaterials. 1992;13(14):1043-6. doi: 10.1016/0142-9612(92)90157-j.
The thermal expansion of a number of glassy polymers of interest in dentistry has been studied using a quartz dilatometer. In some cases, the expansion was linear and therefore the coefficient of thermal expansion readily determined. Other polymers exhibited non-linear behaviour and values appropriate to different temperature ranges are quoted. The linear coefficient of thermal expansion was, to a first approximation, a function of both the molar volume and van der Waal's volume of the repeating unit.
已使用石英膨胀计研究了牙科领域中一些感兴趣的玻璃态聚合物的热膨胀情况。在某些情况下，膨胀是线性的，因此热膨胀系数很容易确定。其他聚合物表现出非线性行为，并给出了适用于不同温度范围的值。热膨胀线性系数初步近似为重复单元的摩尔体积和范德华体积的函数。
