کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1467833 | 990120 | 2017 | 12 صفحه PDF | دانلود رایگان |
UHMWPE was adsorbed from dilute solution onto glass beads surface modified with a copolymer of 0.5–1.2 mol% vinyltrimethoxysilane-ethylene (PE-silane). Functional methacrylate groups were introduced through treatment of the UHMWPE with octadecyltrimethoxysilane (OMS) followed by reaction with 3-methacryloxypropyltrichlorosilane (Cl-MPS). Composites were prepared with 20 vol% PE-silanated/UHMWPE glass and BisGMA/TEGDMA (60/40 wt/wt); Cl-MPS treatment did not affect the results. Toughness increased 40% compared with neat or glass-filled resin, consistent with the addition of the high toughness UHMWPE; moduli were intermediate between the neat resin and glass filled composites, consistent with the relative moduli of glass and UHMWPE; flexural strengths decreased in the order: neat resin > resin + glass beads > silanated/UHMWPE coated glass beads, suggesting that each interface negatively affected the flexural strength.
Journal: Composites Part A: Applied Science and Manufacturing - Volume 37, Issue 11, November 2006, Pages 2017–2028