Organosilicon-modified polyurethane finishing agent and production method thereof
A polyurethane finishing agent and silicone technology, which is applied in the field of textile printing and dyeing, can solve the problems of poor hand feeling of cloth samples, and achieve the effects of soft hand feeling, improved wet rubbing fastness and improved hand feeling.
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Example Embodiment
[0018] Example one
[0019] It is a silicone modified polyurethane finishing agent, including 138.54 grams of PPG2000, 3.73 grams of trimethylolpropane, 13.13 grams of 2,2-dimethylolpropionic acid DMPA, and 0.1 grams of dibutyl tin dilaurate. DBTDL, 74.32 grams of IPDI, 7.72 grams of triethylamine, 65 grams of double-ended aminopropyl silicone oil DNN066-01 and 158 grams of deionized water.
[0020] In this embodiment, the production method of the silicone modified polyurethane finishing agent is as follows:
[0021] Step 1: Prepolymerization of polyurethane:
[0022] Weigh 138.54 grams of PPG2000 and add it to a dry four-necked flask equipped with a stirring device and a thermometer. The temperature is raised to 120°C, dehydrated at 120°C and a vacuum of 0.1MPA for 2.5 hours, and then cooled to 55°C. , Add 3.73 grams of trimethylolpropane, 0.1 grams of dibutyltin dilaurate DBTDL and 13.13 grams of 2,2-dimethylolpropionic acid DMPA, then add 74.32 grams of IPDI dropwise, the dropping...
Example Embodiment
[0031] Example two
[0032] It is a silicone modified polyurethane finishing agent, including 147 grams of PPG2000, 14 grams of trimethylolpropane, 24 grams of 2,2-dimethylolpropionic acid DMPA, and 0.3 grams of dilauric acid dilaurate. Butyl tin DBTDL, 99 grams of IPDI, 5 grams of triethylamine, 122 grams of double-end aminopropyl silicone oil DNN066-01 and 588 grams of deionized water, they are parts by weight.
[0033] In this embodiment, the production method of the silicone modified polyurethane finishing agent is as follows:
[0034] Step 1: Prepolymerization of polyurethane:
[0035] Weigh 147 grams of PPG2000 and add it to a dry four-necked flask with a stirring device and a thermometer. The temperature is raised to 122°C, dehydrated at 122°C and a vacuum of 0.1MPA for 2 hours, and then the temperature is lowered to 57°C. Add 14 grams of trimethylolpropane, 0.3 grams of dibutyltin dilaurate DBTDL and 24 grams of 2,2-dimethylolpropionic acid DMPA, and then add 99 grams of IPDI...
Example Embodiment
[0047] Example three
[0048] It is a silicone modified polyurethane finishing agent, including 208 grams of PPG2000, 7 grams of trimethylolpropane, 14 grams of 2,2-dimethylolpropionic acid DMPA, and 0.3 grams of dibutyl tin dilaurate. DBTDL, 208 grams of IPDI, 7 grams of triethylamine, 70 grams of double-end aminopropyl silicone oil DNN066-01 and 485 grams of deionized water, they are parts by weight.
[0049] In this embodiment, the production method of the silicone modified polyurethane finishing agent is as follows:
[0050] Step 1: Prepolymerization of polyurethane:
[0051] Weigh 208 grams of PPG2000 and add it to a dry four-necked flask with a stirring device and a thermometer. The temperature is raised to 125°C, dehydrated at 125°C and a vacuum of 0.1MPA for 1.5 hours, and then cooled to 60°C. Add 7g of trimethylolpropane, 0.3g of dibutyltin dilaurate DBTDL and 14g of 2,2-dimethylolpropionic acid DMPA, then add 208g of IPDI dropwise, the dropping time is 0.3-0.7 hours , Afte...
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