title: Effect of fiber content on flexural properties of glass fiber-reinforced polyamide-6 prepared by injection molding.
abstract: The use of non-metal clasp denture (NMCD) materials may seriously affect the remaining tissues because of the low rigidity of NMCD materials such as polyamides. The purpose of this study was to develop a high-rigidity glass fiber-reinforced thermoplastic (GFRTP) composed of E-glass fiber and polyamide-6 for NMCDs using an injection molding. The reinforcing effects of fiber on the flexural properties of GFRTPs were investigated using glass fiber content ranging from 0 to 50 mass%. Three-point bending tests indicated that the flexural strength and elastic modulus of a GFRTP with a fiber content of 50 mass% were 5.4 and 4.7 times higher than those of unreinforced polyamide-6, respectively. The result showed that the physical characteristics of GFRTPs were greatly improved by increasing the fiber content, and the beneficial effects of fiber reinforcement were evident. The findings suggest that the injection-molded GFRTPs are adaptable to NMCDs because of their excellent mechanical properties.
authors.affiliation: Department of Dental Biomaterials, Nihon University School of Dentistry at Matsudo.
authors.forename: Manamu
authors.initials: M
authors.lastname: Nagakura
authors.affiliation: Department of Dental Biomaterials, Nihon University School of Dentistry at Matsudo.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Tanimoto
authors.affiliation: Department of Dental Biomaterials, Nihon University School of Dentistry at Matsudo.
authors.forename: Norihiro
authors.initials: N
authors.lastname: Nishiyama
mesh_terms: D002209:Caprolactam / Q000031:analogs & derivatives*; D003188:Composite Resins; D003764:Dental Materials; D003799:Dental Stress Analysis; D005898:Glass; D006801:Humans; D008422:Materials Testing; D009757:Nylons; D018583:Pliability; D011108:Polymers; D013314:Stress, Mechanical
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D009757:Nylons; D011108:Polymers; C009916:nylon 6; D002209:Caprolactam
keywords: Fiber content; Flexural properties; Glass fiber-reinforced thermoplastics; Non-metal clasp dentures