Softening agent for polyamide fabric as well as preparation method and application of softening agent
A softener and fabric technology, applied in textiles and papermaking, improved hand-feel fibers, fiber types, etc., can solve the problems of difficult to obtain softening effect, poor fabric softness, poor durability, etc., to achieve easy control of the reaction process, and increased washability. performance, the effect of improving hydrophilicity
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Embodiment 1
[0041] The present embodiment provides a kind of softening agent for nylon fabric, and the specific preparation method is as follows:
[0042] 1. Dissolve 2.92g of adipic acid and 18g of polyetheramine ED-900 in 24g of N,N-dimethylformamide, and add them to the reaction vessel, turn on the electric stirrer and condensing reflux device, and add 0.10g of N,N '-Dicyclohexylcarbodiimide, need to constantly feed N during the reaction process 2 Remove the product water, control the temperature at 90°C, keep warm for 12 hours, add 0.17g of hexamethylenediamine, raise the temperature to 120°C, reflux for 4 hours, cool down, vacuumize to 0.09Mpa at 70°C, and treat for 2 hours , remove and recover N,N-dimethylformamide to obtain double-terminal amino-containing polyamide-polyether copolymer.
[0043] 2. Dissolve 5.0g of double-terminal amino-containing polyamide polyether copolymer and 20g of epoxy-terminated silicone oil with an average molecular weight of 10,000 in 25.0g of isopropan...
Embodiment 2
[0051] 1. Dissolve 4.38g of adipic acid and 27g of polyetheramine ED-900 in 40g of N,N-dimethylformamide, and add them to the reaction vessel, turn on the electric stirrer and condensing reflux device, and add 0.20g of N,N '-Dicyclohexylcarbodiimide, need to constantly feed N during the reaction process 2 Product water was removed. Control the temperature at 95°C, heat-retain for 11 hours, add 0.28g of hexamethylenediamine, raise the temperature to 125°C, heat-retain for 3 hours, cool down, vacuumize to 0.09Mpa at 70°C, treat for 2 hours, remove and recover N,N-dimethylformamide to obtain double-terminal amino-containing polyamide polyether copolymer.
[0052] 2. Dissolve 7.0g of double-terminal amino-containing polyamide polyether copolymer and 31.5g of epoxy-terminated silicone oil with an average molecular weight of 10,000 in 46.2g of isopropanol, turn on the stirrer and condensing reflux device, and control the temperature at 80 ℃, reflux reaction for 23 hours, lower the...
Embodiment 3
[0058] 1. Dissolve 5.84g of adipic acid and 36g of polyetheramine ED-900 in 62g of N,N-dimethylformamide, and add them to the reaction vessel, turn on the electric stirrer and condensing reflux device, add 0.18g of N,N '-Dicyclohexylcarbodiimide, need to constantly feed N during the reaction process 2 Remove the generated water, control the temperature at 100°C, heat preservation reaction for 10 hours, add 0.41g of hexamethylenediamine, heat up to 130°C, heat preservation reaction for 3 hours, lower the temperature and cool down, vacuumize to 0.09Mpa at 70°C, and treat for 2 hours , remove and recover N,N-dimethylformamide to obtain double-terminal amino-containing polyamide-polyether copolymer.
[0059] 2. Dissolve 9.0g of double-terminated amino-containing polyamide-polyether copolymer and 45g of epoxy-terminated silicone oil with an average molecular weight of 10,000 in 81g of isopropanol, turn on the stirrer and condensing reflux device, and control the temperature at 83°C...
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