Fibrous material with formaldehyde removal function
A technology of fiber materials and functions, applied in the field of elimination of toxic volatiles, can solve the problems of insufficient adsorption capacity and adsorption rate, single application form, complicated preparation method, etc., and achieve the effect of small density, fast removal speed and simple preparation
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Embodiment 1
[0029] 0.1 g of triethylenetetramine having a number average molecular weight of 1000 was dissolved in 99.8 g of water. Then add 0.1g of esterquat 31441-1 and stir evenly to prepare an impregnation solution with 99.8% by mass of water, 0.1% of triethylenetetramine and 0.1% of esterquat 31441-1. Put 1 g of carboxypolyacrylonitrile cation exchange fibers into the soaking liquid, and the solid-to-liquid mass ratio is 1:100. At 1°C, stir once every 10 minutes, and stir for 2 minutes each time. After soaking in this way for 4 hours, remove and shake off excess water, and dry with hot air at 30°C to obtain the fiber with the function of removing formaldehyde according to 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-based quaternary ammonium salt 31441-1 surfactant 0.05%, triethylenetetramine 11% .
[0030]According to the na...
Embodiment 2
[0032] Dissolve 20 g of polyalkyleneimine with a number average molecular weight of 1000 in 70 g of water, then add 10 g of alkylphenol polyoxyethylene ether OP-10 and stir evenly. Prepare an impregnating solution with mass percentage of 70% water, 20% polyalkylene imine and 10% alkylphenol polyoxyethylene ether OP-10. 10 g of carboxypolyacrylonitrile cation exchange fibers were put into the impregnation solution, and the solid-to-liquid mass ratio was 1:10. At 34°C, stir once every 20 minutes, and stir for 2 minutes each time. After soaking in this way for 2 hours, remove and shake off excess water, and dry with hot air at 100°C. That is, the fiber material with formaldehyde removal function described in the present invention is obtained. The percentage content of each component of the fiber material with the function of removing formaldehyde is: 24.8% of carboxypolyacrylonitrile cation exchange fiber, 0.2% of alkylphenol polyoxyethylene ether OP-10 surfactant, polyalkylene ...
Embodiment 3
[0035] Dissolve 2g of triethylenetetramine with a number average molecular weight of 30,000 in 93g of water, then add 5g of fatty alcohol polyoxyethylene ether AEO-9 and stir evenly. Prepare an impregnating solution with a mass percentage of 93% water, 2% triethylenetetramine and 5% fatty alcohol polyoxyethylene ether AEO-9. Put 4 g of carboxypolyacrylonitrile cation exchange fibers into the impregnation solution, and the solid-to-liquid mass ratio is 1:25. At 20°C, stir once every 15 minutes, and stir for 2 minutes each time. After soaking in this way for 2.5 hours, remove and shake off excess water, and dry with hot air at 60°C. That is, the fiber material with formaldehyde removal function described in the present invention is obtained. The percentage content of each component of the fiber material with formaldehyde removal function is: carboxypolyacrylonitrile cation exchange fiber 80.9%, fatty alcohol polyoxyethylene ether AEO-9 surfactant 0.1%, triethylenetetramine 19%....
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