Fluoroalkyl end-capped acrylic acid oligomers/fullerenes nanocomposites reacted smoothly with tetraethoxysilane (TEOS) and silica nanoparticles under alkaline conditions to give fluoroalkyl end-capped oligomers/silica composites-encapsulated fullerenes. Interestingly, these isolated fluorinated composites were found to afford nanometer size-controlled colloidal particles with a good dispersibility in a variety of organic solvents including water. More interestingly, these fluorinated silica nanocomposites-encapsulated fullerenes were applied to a new type of surface modification agent, and these nanocomposites were able to disperse well above the poly(methyl methacrylate) films to exhibit not only surface active property imparted by fluorine but also a unique characteristic related to fullerenes in the nanocomposites on the surface, effectively.
The practical and accurate method for corrosion life prediction and anti-corrosion design of automobiles have been newly developed. A number of case studies on corrosion occurrence from automobiles aged from 4 to 10 years in a real environment were collected. The neural-network-based nonlinear multivariate analysis method was applied to derive implicit relations of corrosion in automobiles from the collected case studies. Firstly, the method was used for the corrosion occurrence prediction about the SILL OUTER parts. Success rate of the prediction was over 90%. Secondly, the method was used to predict the E-coat thickness on the inner side of the SILL OUTER parts required for corrosion protection. Actual and estimated E-coat thickness values agreed reasonably well with each other, i.e. with a high linear correlation factor of 0.9.
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