METHOD FOR EVALUATING ORIENTATION OF NANOWIRE IN TRANSPARENT MATERIAL, METHOD FOR MANAGING STEPS IN WHICH SAID METHOD IS USED, AND METHOD FOR PRODUCING RESIN CURED ARTICLE
An evaluation method includes a step of disposing a sensitive color plate between two polarization plates disposed in a crossed Nicols shape, a step of disposing a measurement material that is a transparent material containing a nanowire between any of one polarization plate or the other polarization plate of the polarization plates and the sensitive color plate, a step of making white light incident from a side of one of the disposed polarization plates, a step of observing a color of the measurement material from a side of the other polarization plate, and a step of evaluating an orientation direction of the nanowire from the color of the measurement material obtained by observation.
1 . An evaluation method in which a sensitive color plate method is used, comprising:
a step of disposing a sensitive color plate between two polarization plates disposed in a crossed Nicols shape;
a step of disposing a measurement material that is a transparent material containing a nanowire between any of one polarization plate or the other polarization plate of the polarization plates and the sensitive color plate;
a step of making white light incident from a side of one of the disposed polarization plates;
a step of observing a color of the measurement material from a side of the other polarization plate; and
a step of evaluating an orientation direction of the nanowire from the color of the measurement material obtained by observation.
2 . The evaluation method according to claim 1 ,
wherein the sensitive color plate has a phase difference of 530 to 580 nm.
3 . The evaluation method according to claim 2 ,
wherein, in a case where the observed color of the measurement material is a color in a blue-green to green to yellow-green range, the nanowire in the measurement material is evaluated to be oriented in a fast axis direction of the sensitive color plate.
4 . The evaluation method according to claim 2 ,
wherein, in a case where the observed color of the measurement material is a color in a red to orange range, the nanowire in the measurement material is evaluated to be oriented in a slow axis direction of the sensitive color plate.
5 . The evaluation method according to claim 1 ,
wherein the measurement material is a plate-like material and is disposed at a tilt with respect to an optical axis of the white light along a slow axis direction of the sensitive color plate as an axis.
6 . The evaluation method according to claim 1 ,
wherein the nanowire is a silver nanowire.
7 . The evaluation method according to claim 1 ,
wherein the measurement material is a liquid put into a transparent container.
8 . The evaluation method according to claim 7 ,
wherein the measurement material is a curable resin composition containing a curable resin and a nanowire.
9 . A method for managing steps, comprising:
an evaluation step of evaluating the composition by the evaluation method according to claim 8 before a curing step of the curable resin composition is performed; and
a determination step of determining whether or not the curable resin composition will be subsequently moved to the curing step based on a result which is obtained by the evaluation.
10 . The method for managing steps according to claim 9 , further comprising:
the curing step of curing the curable resin composition determined to be moved to the curing step.
11 . A method for producing a resin cured article, comprising:
the method for managing steps according to claim 9 .