Mechanical properties of preimpregnated glass fiber reinforced composite resins.
- Author:
Qiu-fei XIE
1
;
Lei ZHANG
;
Gang ZHENG
Author Information
- Publication Type:Journal Article
- MeSH: Composite Resins; chemistry; Glass; chemistry; Materials Testing
- From: West China Journal of Stomatology 2004;22(4):317-319
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the mechanical properties of two kinds of composite resins reinforced by preimpregnated glass fibers.
METHODSSinfony and belleGlass composite resins were used to make standard samples (25 mm x 2 mm x 2 mm) with and without glass fibers. After all specimens were stored for 24 hours in distilled water at (37 +/- 1) degrees C, the flexural strength and flexural modulus were measured on a universal test machine.
RESULTSBoth flexural strength and flexural modulus of Sinfony composite reinforced by the glass fibers became significantly increased, which were (555.76 +/- 67.31) MPa and (12.59 +/- 3.06) GPa respectively, and 4.5 and 2.5 times much more than those of the specimens without glass fibers (P = 0); the flexural modulus of belleGlass composite became significantly increased, which was (14.10 +/- 2.88) GPa, and 0.9 time much more than the specimens without glass fibers (P = 0), but the improvement of flexural strength was not significant.
CONCLUSIONGlass fibers can improve the mechanical properties of composite resins, but the reinforcement effect is different between different resins.