▎ 摘　　要

NOVELTY - Polymer molded article comprises a polymer material, silicon fine particles, nanocarbon powder, and calcium powder. USE - The polymer molded article is used for improving communication speed of an electronic device and improving the operating speed of an electronic device (claimed) such as a wireless communication device. The electronic device includes electric appliances such as smart phones, tablet terminals, mobile phone terminals, desktop or notebook type personal computers, automotive equipment, game equipment, digital cameras, smart watches, media players, electronic book readers, printers, copiers, other office automation equipment, and electrical appliances. The polymer molded article is used as an electronic device component for an electronic device, and used as a housing for an electronic device such as smart phone, preferably a housing for electrical appliances and office automation device. ADVANTAGE - The article is capable of improving the communication speed and operating speed of an electronic device. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: a method for improving communication speed of an electronic device and improving the operating speed of an electronic device, comprising applying the polymer molded article to the electronic device; an electronic device component comprising a polymer material, silicon fine particles, nanocarbon powder, and calcium powder; an electronic device comprising the polymer molded article and/or the electronic device component; and a method for producing a polymer molded article, involving a mixing step of obtaining a mixture containing a polymer material, silicon fine particles, nanocarbon powder, and calcium powder, and a molding step of molding the mixture.