Fibrous material with formaldehyde removal function
A fiber material and functional technology, applied in the field of toxic volatiles elimination, can solve the problems of insufficient adsorption capacity and adsorption rate, complex preparation method, single application form, etc., and achieve the effects of low density, simple preparation and fast removal speed.
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[0028] Example 1
[0029] 0.1 g of triethylenetetramine with a number average molecular weight of 1,000 was dissolved in 99.8 g of water. Next, add 0.1 g of ester quaternary ammonium salt 31441-1 and stir evenly to prepare an impregnating solution with 99.8% by weight of water, 0.1% of triethylenetetramine and 0.1% of ester quaternary ammonium salt 31441-1. Put 1 g of carboxypolyacrylonitrile cation exchange fiber into the impregnating liquid, and the solid-liquid mass ratio is 1:100. Stir once every 10 minutes at 1°C, and stir for 2 minutes each time. After soaking for 4 hours, remove and shake off excess water, and dry with hot air at 30°C to obtain the formaldehyde-removing fiber of the present invention. Material, the percentage content of each component of the fiber material with the function of removing formaldehyde is: carboxypolyacrylonitrile cation exchange fiber 88.95%, ester quaternary ammonium salt 31441-1 surfactant 0.05%, triethylenetetramine 11% .
[0030] The pre...
Example Embodiment
[0031] Example 2
[0032] 20 g of polyalkylene imine with a number average molecular weight of 1000 was dissolved in 70 g of water, and then 10 g of alkylphenol polyoxyethylene ether OP-10 was added and stirred uniformly. It is formulated into an impregnating liquid with a mass percentage of 70% water, 20% polyalkylene imine, and 10% alkylphenol polyoxyethylene ether OP-10. Put 10g of carboxyl polyacrylonitrile cation exchange fiber into the impregnating liquid, and the solid-liquid mass ratio is 1:10. Stir every 20 minutes at 34°C, and stir for 2 minutes each time. After soaking for 2 hours, remove and shake off excess water, and dry with hot air at 100°C. That is, the fiber material with the function of removing formaldehyde according to the present invention is obtained. The percentage content of each component of the fiber material with the function of removing formaldehyde is: carboxypolyacrylonitrile cation exchange fiber 24.8%, alkylphenol polyoxyethylene ether OP-10 sur...
Example Embodiment
[0034] Example 3
[0035] Dissolve 2 g of triethylenetetramine with a number average molecular weight of 30,000 in 93 g of water, and then add 5 g of fatty alcohol polyoxyethylene ether AEO-9 and stir evenly. It is formulated into an impregnating liquid with 93% water by mass, 2% triethylenetetramine and 5% fatty alcohol polyoxyethylene ether AEO-9. Put 4 g of carboxyl polyacrylonitrile cation exchange fiber into the impregnating liquid, and the solid-liquid mass ratio is 1:25. Stir every 15 minutes at 20°C, and stir for 2 minutes each time. After soaking for 2.5 hours, remove and shake off excess water, and dry with hot air at 60°C. That is, the fiber material with the function of removing formaldehyde according to the present invention is obtained. The percentage content of each component of the fiber material with the function of removing formaldehyde is 80.9% carboxypolyacrylonitrile cation exchange fiber, 0.1% fatty alcohol polyoxyethylene ether AEO-9 surfactant, and 19% t...
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