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首页> 外文期刊>Journal of Applied Polymer Science >Tensile properties of denture base resin reinforced with various esthetic fibers
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Tensile properties of denture base resin reinforced with various esthetic fibers

机译：各种美学纤维增强的义齿基托树脂的拉伸性能

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摘要

This study was conducted to determine the reinforcement effect of five types of esthetic fibers on the tensile properties of a conventional denture base resin. E-glass, polyester, rayon, nylon 6, and nylon 6/6 fibers were cut into 2, 4, and 6 mm lengths and added into resin randomly at a concentration of 3% by weight. For each formulation, five tensile specimens, as well as control specimens without fibers, were prepared in a dumbbell shape using a stainless steel mold, constructed according to ASTM Standard D638M-91a. Tensile properties were evaluated by using a universal testing machine. Surfaces of the tensile sections were also observed under the scanning electron microscope (SEM). Tensile strength of the specimens reinforced with fibers in varying lengths was found to be lower than that of the unreinforced control group. Among the trial groups, the specimens reinforced with 6 mm long polyester fibers showed the highest tensile strength. All the SEM fractographs indicated both weak adhesion and pull out of fibers from the matrix. None of the incorporated esthetic fibers appeared to improve tensile strength of the resin.
机译：进行该研究以确定五种类型的美学纤维对常规义齿基料树脂的拉伸性能的增强效果。将电子玻璃，聚酯，人造丝，尼龙6和尼龙6/6的纤维切成2、4和6mm的长度，并以3重量％的浓度随机添加到树脂中。对于每种配方，使用根据ASTM标准D638M-91a构造的不锈钢模具，以哑铃状制备五个拉伸试样以及不含纤维的对照试样。拉伸性能通过使用通用测试机进行评估。拉伸截面的表面也在扫描电子显微镜（SEM）下观察。发现用不同长度的纤维增强的样品的拉伸强度低于未增强的对照组的拉伸强度。在试验组中，用6毫米长的聚酯纤维增强的样品显示出最高的拉伸强度。所有的SEM断口扫描仪均显示出粘附力弱和纤维从基质中拉出。并入的美学纤维似乎都没有改善树脂的拉伸强度。

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