Halogen-free flame-retardant textile finishing agent as well as preparation method and application thereof
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A technology for flame-retardant fabrics and finishing agents, applied in fiber treatment, textile and papermaking, fiber types, etc., can solve problems such as environmental pollution, and achieve the effects of good durability, little secondary pollution, and good thermal stability
Inactive Publication Date: 2017-03-15
中国纺织科学研究院江南分院
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[0005] At present, the halogenated flame retardants used in the market will produce a lot of smoke when burned and can release toxic gases, causing environmental pollution and other haza...
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0031] A preparation method of a halogen-free flame-retardant fabric finishing agent, specifically comprising the following steps:
[0032] (1) Weigh 12 g of polypropylene glycol and 5 g of polyglycerol, respectively, place them in completely dry three-neck flasks with thermometers, and treat them at 120 ° C and 140 ° C for 2 hours under the condition of a vacuum of 0.01 atm;
[0033] (2) Pour the pretreated polypropylene glycol and polyglycerol into the same three-necked flask after being lowered to normal temperature, install the stirring device, start the stirrer, add isophorone diisocyanate 8g, (bis(2-hydroxy Ethyl)amino)methyl diethyl phosphate 10g, a drop of dibutyltin dilaurate, start to slowly heat up to 70°C, and react at a constant temperature for 120min;
[0034] (3) After the reaction, cool the system down to 60°C, add a certain amount of acetone and stir for 10 minutes, add 2g of dimethylolpropionic acid, raise the temperature of the system to a constant temperatu...
Embodiment 2
[0048] A preparation method of a halogen-free flame-retardant fabric finishing agent, specifically comprising the following steps:
[0049] (1) Weigh 12 g of polypropylene glycol and 5 g of polyglycerol respectively, place them in completely dry three-neck flasks with thermometers, and treat them at 120° C. and 140° C. for 2 hours under vacuum of 0.01 atm;
[0050] (2) Pour the pretreated polypropylene glycol and polyglycerol into the same three-necked flask after being lowered to normal temperature, install the stirring device, start the stirrer, add isophorone diisocyanate 4g, (bis(2-hydroxy Ethyl) amino) methyl phosphate 14g, a drop of dibutyltin dilaurate, began to slowly heat up to 70 ° C, constant temperature reaction 120min;
[0051] (3) After the reaction, cool the system down to 60°C, add a certain amount of acetone and stir for 10 minutes, add 2g of dimethylolpropionic acid, raise the temperature of the system to a constant temperature of 70°C, and react for 30 minut...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a halogen-free flame-retardant textile finishing agent as well as a preparation method and application thereof. The halogen-free flame-retardant textile finishing agent comprises the following components in percentage by weight: 5-15% of polypropylene glycol, 1-10% of polyglycerol, 10-15% of isophorone diisocyanate (IPDI), 10-20% of (di(2-ethoxyl) amino) diethyl methylphosphonate (FRC-6), 0.01-0.05% of dibutyltin dilaurate, 1-5% of dimethylolpropionic acid (DMPA), 2-5% of triethylamine, 23-68% of deionized water, 1-3% of N-hydroxymethyl acrylamide and 1-4% of a flame-retardant synergist. According to the halogen-free flame-retardant textile finishing agent, in waterborne polyurethane macromolecules, diethyl methylphosphonate is introduced into a polyurethane chain by using a copolymerization method, so that diethyl methylphosphonate can serve as a structural constituent part of a final product, and the halogen-free flame-retardant textile finishing agent is good in durability and flame retardancy; and in addition, due to adoption of the cross-linking agents, namely, N-hydroxymethyl acrylamide and the flame-retardant synergist, in synthesized halogen-free flame-retardant waterborne polyurethane, the halogen-free flame-retardant textile finishing agent is relatively good in durability and good in synergetic flame-retardant effect.
Description
[0001] Technical field: [0002] The invention belongs to the technical field of textile finishing agents, and in particular relates to a halogen-free flame-retardant fabric finishing agent, and also relates to a preparation method and application of the halogen-free flame-retardant fabric finishing agent. [0003] Background technique: [0004] As a new type of green environmental protection material, water-based polyurethane is more and more used in the finishing of textiles due to its excellent performance. Both textiles and water-based polyurethane finishing agents are flammable materials, which may cause fire hazards. Especially polyester and polyester blended fabrics are widely used because of their high strength, large elastic modulus, good heat resistance and excellent chemical stability. . For example, firefighter overalls, curtain cloth, decorative cloth for cars and high-speed trains, etc. Therefore, flame retardant treatment must be carried out on textiles to meet...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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