SIZING AGENT FOR CARBON FIBER

摘要

PROBLEM TO BE SOLVED: To provide a sizing agent for a carbon fiber which has excellent carbon fiber sizing and opening properties, and also can suppress its fluffing, and a carbon fiber bundle prepared using the same.SOLUTION: A sizing agent for a carbon fiber comprises rosin ester (A) and resin (B), preferably, at the rate of (A)/(B)=10/90-90/10.