METHOD FOR ESTIMATING BINDING PROPERTIES BETWEEN FINE PARTICLES AND BINDER RESIN IN COATING FILM, AND METHOD FOR IMPROVING BINDING PROPERTIES BETWEEN FINE PARTICLES AND BINDER RESIN IN COATING FILM

摘要

The present invention relates to a method for estimating binding properties between fine particles and a binder resin in a coating film, and a method for improving binding properties between fine particles and a binder resin in a coating film. Until now, when using a new material in the production of a functional coating film, investigations of what combinations of fine particles and binders lead to an increase in binding capacity have been carried out by actually producing a large number of coating films and evaluating the binding properties thereof, and thus a large amount of time has been required to design functional coating films. The present invention provides a method for estimating, in compositions for which the binding properties between fine particles and a binder resin in a coating film are unknown, the binding properties between the fine particles and the binder resin in the coating film without having to actually produce the coating film, said estimation being accomplished by: focusing on the transverse relaxation time of water protons, which is obtained by means of a pulse NMR method, as a means of specifying the surface properties of the fine particles; generating, in advance, matrix data that represents the relationship between transverse relaxation time and binding properties; and carrying out a comparison with this. The provided method also makes it possible to improve binding properties.