John Jacob, Ann Mani Shani, Palaniswamy Kalpana, Ramanathan Anand, Razak Abdul Aziz Abdul
Department of Diagnostic and Integrated Dental Practice, Faculty of Dentistry, University of Malaya, Malaysia.
J Prosthodont. 2015 Apr;24(3):233-8. doi: 10.1111/jopr.12191. Epub 2014 Jun 27.
The purpose of this preliminary study was to evaluate the flexural properties of poly(methyl methacrylate) (PMMA) reinforced with oil palm empty fruit bunch (OPEFB) fiber.
The flexural strength and flexural modulus of three OPEFB fiber-reinforced PMMA were compared with a conventional and a commercially available reinforced PMMA. The three test groups included OPEFB fibers of 0.5 mm thickness, 2.0 mm thickness, and OPEFB cellulose.
All test group specimens demonstrated improved flexural strength and flexural modulus over conventional PMMA. Reinforcement with OPEFB cellulose showed the highest mean flexural strength and flexural modulus, which were statistically significant when compared to the conventional and commercially reinforced PMMA used in this study. OPEFB fiber in the form of cellulose and 0.5 mm thickness fiber significantly improved flexural strength and flexural modulus of conventional PMMA resin. Further investigation on the properties of PMMA reinforced with OPEFB cellulose is warranted.
Natural OPEFB fibers, especially OPEFB in cellulose form, can be considered a viable alternative to existing commercially available synthetic fiber reinforced PMMA resin.
本初步研究的目的是评估用油棕空果串(OPEFB)纤维增强的聚甲基丙烯酸甲酯(PMMA)的弯曲性能。
将三种OPEFB纤维增强PMMA的弯曲强度和弯曲模量与一种传统的和一种市售增强PMMA进行比较。三个测试组包括厚度为0.5毫米、2.0毫米的OPEFB纤维以及OPEFB纤维素。
所有测试组试样的弯曲强度和弯曲模量均优于传统PMMA。用OPEFB纤维素增强显示出最高的平均弯曲强度和弯曲模量,与本研究中使用的传统和市售增强PMMA相比具有统计学意义。纤维素形式和0.5毫米厚的纤维形式的OPEFB纤维显著提高了传统PMMA树脂的弯曲强度和弯曲模量。有必要对用OPEFB纤维素增强的PMMA的性能进行进一步研究。
天然OPEFB纤维,尤其是纤维素形式的OPEFB,可以被认为是现有市售合成纤维增强PMMA树脂的可行替代品。