Solvent-free polyurethane adhesive for textiles, and preparation method thereof

[0020] A preparation method of a solvent-free polyurethane adhesive for textiles, comprising the following steps:

[0021] (1) Under nitrogen protection, mix ammonium hexachloroiridate, nickel nitrate hydrate, cobalt nitrate, ethanol and propionic acid; Then reflux and stir for 50 minutes, then add the ammoniacal liquor that mass concentration is 20%; Reflux reaction 40 minutes; Then spin Evaporate the solvent to obtain a solid; sinter the solid at 500°C for 10 minutes, then calcinate at 650°C for 15 minutes, grind it and pass it through a 2000-mesh sieve, take the sieve and wash it until the aqueous solution after washing does not contain chloride ions and then dry Obtain functional fillers;

[0022] (2) Mixing mass concentration of 10% polyvinyl alcohol (the average molecular weight of polyvinyl alcohol is 4800) aqueous solution, tetraphenyl porphyrin iron, tert-butyl peroxybenzoate, stirred at 80°C for 3 hours, then rotary evaporated to remove water, then add hexamethylene di

[0027] A preparation method of a solvent-free polyurethane adhesive for textiles, comprising the following steps:

[0028] (1) Under nitrogen protection, mix ammonium hexachloroiridate, nickel nitrate hydrate, cobalt nitrate, ethanol and propionic acid; Then reflux and stir for 50 minutes, then add the ammoniacal liquor that mass concentration is 20%; Reflux reaction 40 minutes; Then spin Evaporate the solvent to obtain a solid; sinter the solid at 500°C for 10 minutes, then calcinate at 650°C for 15 minutes, grind it and pass it through a 2000-mesh sieve, take the sieve and wash it until the aqueous solution after washing does not contain chloride ions and then dry Obtain functional fillers;

[0029](2) Mixing mass concentration of 10% polyvinyl alcohol (the average molecular weight of polyvinyl alcohol is 4200) aqueous solution, tetraphenyl porphyrin iron, tert-butyl peroxybenzoate, stirring at 80°C for 3 hours, then rotary evaporation to remove water, then add hexamethylene d

[0034] A preparation method of a solvent-free polyurethane adhesive for textiles, comprising the following steps:

[0035] (1) Under nitrogen protection, mix ammonium hexachloroiridate, nickel nitrate hydrate, cobalt nitrate, ethanol and propionic acid; Then reflux and stir for 50 minutes, then add the ammoniacal liquor that mass concentration is 20%; Reflux reaction 40 minutes; Then spin Evaporate the solvent to obtain a solid; sinter the solid at 500°C for 10 minutes, then calcinate at 650°C for 15 minutes, grind it and pass it through a 2000-mesh sieve, take the sieve and wash it until the aqueous solution after washing does not contain chloride ions and then dry Obtain functional fillers;

[0036] (2) Mixing mass concentration of 10% polyvinyl alcohol (the average molecular weight of polyvinyl alcohol is 4800) aqueous solution, tetraphenyl porphyrin iron, tert-butyl peroxybenzoate, stirred at 80°C for 3 hours, then rotary evaporated to remove water, then add hexamethylene di