ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
The nano-CaCO3/Acrylonitrile-Butadiene-Styrene (ABS) composites were prepared bymelting-blend with the single-screw extruder. The mechanical properties of the nanocomposites andthe dispersion of nano-CaCO3 were investigated by means of transmission electron microscopy(TEM) and mechanical tests. The micro structure of the fracture section of the nanocomposites wasanalyzed by means of scanning electron microscopy (SEM). The results show that not only theimpact property but also the rigidity property and the bending modulus of the system have beenincreased evidently by added modificated nano-CaCO3. However, the tensile strength of thenano-composites has a little decreased by added the modificated nano- CaCO3. The modificatednano-CaCO3 has been dispersed well in the matrix in the nanometer scale. The micro structure ofthe fracture section of the nanocomposites proved that when the composites have been impacted,the modificated nano-CaCO3 particles have taken an action of initiating and terminating crazing(silver streak), which can absorb more impact energy than the pure ABS resin. Compared with thepure ABS resin material, the notched impact strength of the nano-CaCO3/ABS composites added 2percent hundred resin (PHR) modificated nano-CaCO3 reach 36.77 kJ/m2, which have beenincreased up to 44%. At the same time, the rigidity of the nanocomposites has also been enhancedby 23.5% which is increased from 28.16N to 34.87 N
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.121-123.1459.pdf
