Bandeira L.C.,University of Franca |
de Campos B.M.,University of Franca |
Calefi P.S.,University of Franca |
Ciuffi K.J.,University of Franca |
And 4 more authors.
Journal of Nanostructured Polymers and Nanocomposites | Year: 2011
This work investigates changes in the properties of macroporous (pore size = 500μm) samples of the polymers polyamide 12 (nylon) and acrylonitrile-butadiene-styrene (ABS), obtained by rapid prototyping (RP). The sols containing silicon and calcium alkoxide, with or without phosphate anions, were deposited onto the polymers by the dip-coating technique. Thermal analysis revealed an increase in the decomposition temperature of the materials prepared by RP, attributed to the coating. SEM demonstrated good adherence, dense and thick coatings, coverage of the micropores, and approximately 30% decrease in the number of macropores. Samples containing phosphate were better coated compared with samples without phosphate in relation to adhesion and homogeneity. In conclusion, RP and the sol-gel route are efficient for polymer coating and could be used in a variety of applications as aircrafts, automobiles, telecommunications, and biomodels.