Nano-enhanced resorcinol-formaldehyde-latex (RFL) impregnation system for surface treatment of fiber cords and preparation method of nano-enhanced RFL impregnation system
A resorcinol and surface treatment technology, applied in fiber treatment, fiber type, textiles and papermaking, etc., can solve the problems of fiber rubber bonding effect not reaching the optimal level, carbon black easy to agglomerate, unfavorable production and storage, etc. , to achieve the effect of simple preparation and fiber impregnation process, good dispersion and improved application value
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Embodiment 1
[0030] Resorcinol-formaldehyde-latex dipping system, the formula ratio in parts by weight is as follows: deionized water 100 parts, resorcinol 10 parts, 37% formaldehyde solution 15 parts, sodium hydroxide 0.4 parts, ammonia solution 2 parts, 2 parts of nano-filler (2 parts of attapulgite), 50 parts of latex (50 parts of butadiene latex)
[0031] Preparation of dipping solution: Weigh sodium hydroxide into a reaction vessel containing deionized water, stir at 25°C for 10 minutes, after sodium hydroxide is fully dissolved, add resorcinol and stir for 5 minutes, then add 37% formaldehyde solution , Stir uniformly at room temperature for 5 hours to obtain a uniform reaction solution; adjust the pH of the mixed solution to 9 with 25% ammonia solution, then add nano fillers for mechanical stirring for 30 minutes, finally add rubber latex, and continue to stir at room temperature for 20 hours to obtain the Nano-strengthened RFL dipping liquid.
[0032] Dipping treatment: Put nylon 66 fi...
Embodiment 2
[0035] Resorcinol-formaldehyde-latex impregnation system, the formula ratio in parts by weight is as follows: deionized water 100 parts, resorcinol 12 parts, formaldehyde solution 16 parts, sodium hydroxide 0.5 parts, ammonia solution 6 parts, nano filler 2 parts (2 parts of attapulgite), 100 parts of latex (30 parts of nitrile latex, 70 parts of nitrile latex)
[0036] Preparation of dipping solution: Weigh sodium hydroxide into a reaction vessel containing deionized water, stir at 25°C for 10 minutes, after sodium hydroxide is fully dissolved, add resorcinol and stir for 5 minutes, then add 37% formaldehyde solution , Stir uniformly at room temperature for 5 hours to obtain a uniform reaction solution; adjust the pH of the mixed solution to 9 with 25% ammonia solution, then add nano fillers for mechanical stirring for 30 minutes, finally add latex, and continue to stir at room temperature for 20 hours to obtain the nano Strengthen the RFL dipping liquid.
[0037] Dipping treatme...
Embodiment 3
[0040] Resorcinol-formaldehyde-latex dipping system, the formula ratio in parts by weight is as follows: deionized water 100 parts, resorcinol 8 parts, 37% formaldehyde solution 12 parts, sodium hydroxide 0.3 parts, ammonia solution 4 parts, 5 parts of nano-filler (3 parts of graphene oxide, 2 parts of clay), 120 parts of latex (40 parts of nitrile latex, 50 parts of styrene butadiene latex, 30 parts of styrene butadiene latex)
[0041] Preparation of dipping solution: Weigh sodium hydroxide into a reaction vessel containing deionized water, stir at 25°C for 10 minutes, after sodium hydroxide is fully dissolved, add resorcinol and stir for 5 minutes, then add 37% formaldehyde solution , Stir uniformly at room temperature for 4 hours to obtain a uniform reaction solution; adjust the pH of the mixed solution to 8.5 with 25% ammonia solution, then add nano fillers for ultrasonic stirring for 15 minutes, then mechanically stir for 30 minutes, and finally add rubber latex, continue sti...
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