| abstract |
PROBLEM TO BE SOLVED: To provide a filler-free PT having a large apparent density, a small average particle size, a sharp particle size distribution, a small charge amount, a small angle of repose, and excellent powder flowability. An FE granular powder and a method for producing the same are provided. SOLUTION: When PTFE powder is stirred and granulated in water, the PTFE powder is stirred and granulated in the presence of an organic liquid forming a liquid-liquid interface with water and a nonionic surfactant and / or an anionic surfactant. Granulate. A molded product obtained from such a granular powder has excellent tensile strength and elongation, low surface roughness, high dielectric breakdown voltage, and high whiteness (Z value). |