Andreopoulos A G, Evangelatou M, Tarantili P A
Department of Chemical Engineering, National Technical University of Athens, Greece.
J Biomater Appl. 1998 Jul;13(1):66-73. doi: 10.1177/088532829801300104.
Compounds of a silicone elastomer suitable for preparing maxillofacial prostheses, reinforced with various amounts of silica powder, have been studied for their mechanical response and wetting properties in terms of contact angle. Tensile strength and elongation at break showed an increase with increasing silica volume fraction up to 35%, whereas the Young modulus displayed small dependence on the silica content and the resistance to tear increased continuously with filler volume fraction (Vf). The wetting properties assessed via the contact angle, seemed to degrade with increasing silica Vf, but a dependence on the elastomer network density has also been recorded.
对适用于制备颌面修复体的、用不同量二氧化硅粉末增强的硅橡胶弹性体化合物，就其机械响应和基于接触角的润湿性进行了研究。拉伸强度和断裂伸长率在二氧化硅体积分数增加至35%时呈上升趋势，而杨氏模量对二氧化硅含量的依赖性较小，撕裂强度随填料体积分数（Vf）持续增加。通过接触角评估的润湿性似乎随二氧化硅Vf的增加而降低，但也记录到了其对弹性体网络密度的依赖性。
