Non-ionic surfactant composition and fluoropolymer aqueous dispersion

摘要

A nonionic surfactant composition including: a nonionic surfactant that contains a molecule having a C10-C22 alkyl group and/or alkenyl group as a hydrophobic group, a polyoxyalkylene chain as a hydrophilic group, no aromatic ring, no C9-C14 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and no C13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process. The nonionic surfactant has a hydrodynamic radius of 5.0 to 8.0 nm at 40° C. in an aqueous solution in which a nonionic surfactant concentration is 0.1 kg/L in the nonionic surfactant composition, the radius being measured by a dynamic light scattering method.

主权项

1. A nonionic surfactant composition comprising:
a nonionic surfactant that comprises a molecule having a C10-C22 alkyl group and/or alkenyl group as a hydrophobic group, a polyoxyalkylene chain as a hydrophilic group, no aromatic ring, no C9-C14 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and no C13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process, wherein the nonionic surfactant has a hydrodynamic radius of 5.0 to 8.0 nm at 40° C. in an aqueous solution in which a nonionic surfactant concentration is 0.1 kg/L in the nonionic surfactant composition, the radius being measured by a dynamic light scattering method wherein the nonionic surfactant comprises a nonionic surfactant represented by the formula (1):
R1O(CH2CH2O)n1Hwherein R1 is a C13 linear or branched alkyl group (except a C13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and a C13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process), and n1 is an integer of 5 to 15, and
a nonionic surfactant represented by the formula (2):
R2O(CH2CH(CH3)O)m(CH2CH2O)n2Hwherein R2 is a C10-C16 linear or branched alkyl group (except a C10-C14 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and a C13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process), n2 is an integer of 5 to 20, and m is an integer of 1 to 6, and
wherein a molar ratio (1)/(2) of the nonionic surfactant represented by the formula (1) to the nonionic surfactant represented by the formula (2) is (99 to 60)/(1 to 40).