吹込み油に関する研究

抄録

Various conditions for manufacturing viscous and colourless blown safflower and castor oils were studied by applying statistical procedure. And some properties of reaction products and their applications for nitrocellulose lacquer were discussed.
The results are summarized as follows :
On viscosity increase, air contacting actions were most effective, but its blow rate was less, and both temperature and catalyzers effected much on colouring. Rate of increase in viscosity was calculated by the equation lnη/η₀=Kt, and activation energy of safflower oil was 6.3kcal/mol.
From the infrared absorption spectral data, trans-trans conjugated diene and isolated trans double bond were found, and C₈F₁ or C₈, C₉F₁, C₁₁ or C₁₁F₁, C₁₁F₂ or C₁₂ and C₁₇ acids were found from petroleum ether extracts of the blown safflower oils by gas-liquid chromatography.
The film properties of nitrocellulose lacquer containing the blown oil as plasticizer were compared with that of castor oil modified alkyd resin. It is observed that the former has better flexiblility, although the latter has better gloss than the former. The suitable content of blown oil in nitrocellulose lacquer film was found to be 3040%.