Polyarylene sulfide resin powder and method for producing same

The present invention relates to a polyarylene sulfide resin powder and a method for producing the same. [Problem] To provide: a resin powder in which a porous molded article obtained using the resin powder has a good surface state; a method for producing the resin powder; a porous molded article obtained using the resin powder; and a method for producing the porous molded article. [Solution] The problem is solved by a polyarylene sulfide resin powder having an average particle diameter of 5 [mu] m or more and 100 [mu] m or less and a peak width of a melting point Tm1 measured by a differential scanning calorimeter of 10 DEG C or less. The polyarylene sulfide resin powder preferably has an average circularity of 0.70 to 1.00 (inclusive) as measured by a dynamic image analysis method. 本发明涉及聚芳硫醚树脂粉体和其制造方法。[课题]提供：使用树脂粉体而成的多孔质成型体具有良好的表面状态的树脂粉体、和其制造方法、以及使用该树脂粉体而成的多孔质成型体、和其制造方法。[解决方案]通过聚芳硫醚树脂粉体而解决上述课题，所述聚芳硫醚树脂粉体的平均粒径为5μm以上且100μm以下，由差示扫描量热计测得的熔点Tm1的峰宽为10℃以下。该聚芳硫醚树脂粉体优选由动态图像解析法测得的平均圆形度为0.70以上且1.00以下。