Vallittu P K, Lassila V P, Lappalainen R
Department of Prosthetics and Stomatognathic Physiology, University of Kuopio, Faculty of Dentistry, Finland.
J Prosthet Dent. 1994 Jun;71(6):607-12. doi: 10.1016/0022-3913(94)90446-4.
This study tested the effect on the fracture resistance of acrylic resin test specimens when different amounts of fibers were incorporated in the resin matrix. The fibers used included glass, carbon, and aramid fibers, with 30 test specimens of each concentration of fibers. Transverse sections of the specimens were studied by scanning electron microscope to establish how the fibers behave in the polymerization process. The results indicated that an increase in the amount of fibers enhanced the fracture resistance of the test specimens (p < 0.001). The SEM micrographs of transverse sections of test polymerized specimens revealed void spaces of different sizes inside the fiber roving.
本研究测试了在树脂基体中加入不同数量纤维时，对丙烯酸树脂测试样本抗断裂性的影响。所使用的纤维包括玻璃纤维、碳纤维和芳纶纤维，每种纤维浓度制备30个测试样本。通过扫描电子显微镜研究样本的横向截面，以确定纤维在聚合过程中的行为。结果表明，纤维数量的增加提高了测试样本的抗断裂性（p < 0.001）。测试聚合样本横向截面的扫描电子显微镜照片显示，纤维粗纱内部存在不同大小的空隙。
