| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyphenylene sulfide resin particulate dispersion with an average particle diameter of 1 μm-10 μm.SOLUTION: The method of the present invention for manufacturing a polyphenylene sulfide resin particulate dispersion includes the following steps (a), (b), and (c): (a): a step of preparing a solution by blending a polyphenylene sulfide resin with an organic solvent at a ratio of 4.8 mass%-10 mass% and then heating the mixture (dissolution step); (b): a step of obtaining a flushed liquid in which polyphenylene sulfide resin particulates are deposited by flush-crystallizing the solution within a solvent for deposition (deposition step); and (c): a step of dispersing the polyphenylene sulfide resin particulates by ultrasonically treating, in the presence of a surfactant, the flushed liquid in which polyphenylene sulfide resin particulates are deposited (dispersion step). |
