| 摘要 |
This sizing agent for a synthetic fiber includes an organo-modified silicone represented by general formula (1) below, and an epoxy compound (B) having an aromatic ring. In formula (1), R1 represents a hydrogen atom, a methyl group or an ethyl group; R2 represents a group represented by general formula (2) below; R3 represents a hydrocarbon group having an aromatic ring and 8-40 carbon atoms or an alkyl group having 3-22 carbon atoms; R4 represents the same group as R1, R2 or R3; when R1, R2, R3 or R4 is provided in plurality, they may be the same or different from each other; x represents an integer greater than or equal to 0; y and z each represent an integer greater than or equal to 1; and (x+y+z) is 10-200. In formula (2), R5 represents an alkylene group having 2-6 carbon atoms, AO represents an alkyleneoxy group having 2-4 carbon atoms, R6 represents an alkylene group having 1-6 carbon atoms, e represents an integer of 0-4, f represents an integer of 0 or 1, and Ep represents a group represented by formula (3) below or formula (4) below. |
