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A kind of fluorinated polyurethane anti-siphon treatment agent and its preparation method and application

A fluorinated polyurethane and anti-siphon technology, which is applied in the chemical and chemical industry, can solve the problems of unfavorable large-scale safe use, high price, and poor performance, and achieve the effects of large-scale production, low price, and excellent anti-siphon effect

Active Publication Date: 2019-07-19
GUANGZHOU HUADU HAUYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology uses isocyanate monomers such as toluene diisocyanate, isophorone diisocyanate, etc. to react with perfluoroalcohol, and the obtained product has high fluorine content, high price, and poor performance. Both health and environment have great hazards, which is not conducive to large-scale safe use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 13g of n-behenyl alcohol and 5.2g of isooctyl alcohol into the reaction kettle, raise the temperature to 60°C, vacuumize for 1 hour, add 31g of perfluorooctyl ethyl alcohol, 12g of hexafluorobutanol, and add hexaethylene glycol after the dissolution is complete. 30g of methyl diisocyanate biuret, 70g of toluene diisocyanate trimer, react at 60°C for 1 hour, raise the temperature to 80°C for 4 hours, add 1.6g of dimethylethanolamine, continue to react at 80°C for 2 hours, and discharge to obtain fluorine Chemicalized polyurethane anti-siphon treatment agent. After diluting the obtained fluorinated polyurethane anti-siphon treatment agent with isopropanol, it was tested, and the siphon height was 0 cm.

Embodiment 2

[0028] Add 13g of n-behenyl alcohol and 5.2g of n-octanol into the reaction kettle, raise the temperature to 60°C, vacuumize for 1 hour, add 48g of perfluorohexyl ethyl alcohol, and add hexamethylene diisocyanate biuret after the dissolution is complete 30g, 70g of toluene diisocyanate trimer, react at 60°C for 1 hour, heat up to 80°C for 4 hours, add 1.6g of diethylethanolamine, continue to react at 80°C for 2 hours, and discharge to obtain a fluorinated polyurethane anti-siphon treatment agent. After diluting the obtained fluorinated polyurethane anti-siphon treatment agent with isopropanol, it was tested, and the siphon height was 0 cm.

Embodiment 3

[0030] Add 13g of n-behenyl alcohol and 6.3g of n-decanol into the reaction kettle, raise the temperature to 60°C, vacuumize for 1 hour, add 35g of perfluorobutyl ethyl alcohol, and add hexamethylene diisocyanate 30g of urea, 70g of toluene diisocyanate trimer, react at 60°C for 1 hour, heat up to 80°C for 4 hours, add 1.6g of methyldiethanolamine, continue to react at 80°C for 2 hours, and discharge to obtain fluorinated polyurethane anti-siphon treatment agent . After diluting the obtained fluorinated polyurethane anti-siphon treatment agent with isopropanol, it was tested, and the siphon height was 0 cm.

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Abstract

The invention belongs to the field of chemistry and chemical engineering and discloses a fluorinated polyurethane anti-siphon treatment agent and a preparation method and application thereof. The fluorinated polyurethane anti-siphon treatment agent is prepared from, by mass, 15%-35% of fluorinated alkyl alcohol, 10%-20% of fatty alcohol, 50%-65% of polyisocyanate and 0.8%-1.5% of tertiary amine polyhydroxy compounds. The preparation method includes the following steps that the fatty alcohol is added into a reaction kettle, the temperature is raised to 60 DEG C, vacuumizing is conducted for one hour, and filling is conducted through nitrogen; the fluorinated alkyl alcohol is added and stirred till complete dissolution is achieved; the polyisocyanate is added, a reaction is conducted for one hour at the temperature of 60 DEG C, the temperature is raised to 80 DEG C, and a reaction is conducted for four hours; the tertiary amine polyhydroxy compounds are added, a reaction is conducted for two hours at the temperature of 80 DEG C, and a product is output. The fluorinated polyurethane anti-siphon treatment agent can be used for surface treatment of textile, leather and other articles, and the processed articles have an excellent anti-siphon effect.

Description

technical field [0001] The invention belongs to the field of chemistry and chemical engineering, and in particular relates to a fluorinated polyurethane anti-siphon treatment agent and its preparation method and application. Background technique [0002] Fluorinated polyurethane has low surface tension, excellent adhesion and weather resistance, and is widely used in surface treatment of leather, textiles, etc. The existing technology uses isocyanate monomers such as toluene diisocyanate, isophorone diisocyanate, etc. to react with perfluoroalcohol, and the obtained product has high fluorine content, high price, and poor performance. Both health and environment have great harm, which is not conducive to large-scale safe use. Contents of the invention [0003] In order to overcome the shortcomings and deficiencies in the prior art, the primary purpose of the present invention is to provide a fluorinated polyurethane anti-siphon treatment agent. The fluorinated polyurethan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/576C14C11/00C08G18/32C08G18/38C08G18/73C08G18/80
Inventor 李文
Owner GUANGZHOU HUADU HAUYU CHEM
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