▎ 摘　　要

NOVELTY - Preparing fire hose comprises e.g. providing polyvinyl chloride, polybutylene terephthalate, graphene, nano titanium dioxide, high-viscosity attapulgite clay, light calcium carbonate, plasticizer, and anti-aging agent, adding polybutylene terephthalate in reaction kettle, heating at 90-100 degrees C, stirring, adding graphene, stirring, reacting for 2-3 hours to obtain product a1, adding product a1, polyvinyl chloride, nano titanium dioxide, light calcium carbonate and plasticizer in mixer, mixing for 3-5 minutes, adding high-viscous attapulgite clay and anti-aging agent, mixing for 1-3 minutes to obtain mixture a2, kneading on the open mill for 3-5 minutes, squeezing, cooling to obtain liner cylinder, preparing woven layer weaving glass fiber-reinforced nylon 66 complex fiber to form cylindrical skeleton, providing polyacrylamide, polyurethane, graphene, white carbon black, dibutyl phthalate, zinc stearate, nano magnesium oxide, light stabilizing agent, and antioxidant. USE - The method is useful for preparing fire hose. ADVANTAGE - The fire hose has good oil resistance, corrosion resistance, aging resistance, wear resistance and scratch resistance property, high mechanical properties, and long service life. DETAILED DESCRIPTION - Preparing fire hose comprises (i) providing 32-46 pts. wt. polyvinyl chloride, 12-18 pts. wt. polybutylene terephthalate, 0.3-0.6 pts. wt. graphene, 0.5-2.1 pts. wt. nano titanium dioxide, 7-15 pts. wt. high-viscosity attapulgite clay, 20-30 pts. wt. light calcium carbonate, 9-13 pts. wt. plasticizer, and 1-4 pts. wt. anti-aging agent, adding polybutylene terephthalate in reaction kettle, heating at 90-100 degrees C, stirring, adding graphene, stirring, reacting for 2-3 hours to obtain product a1, adding product a1, polyvinyl chloride, nano titanium dioxide, light calcium carbonate and plasticizer in mixer, mixing for 3-5 minutes, adding high-viscous attapulgite clay and anti-aging agent, mixing for 1-3 minutes to obtain mixture a2, kneading on the open mill for 3-5 minutes, squeezing and cooling to obtain liner cylinder, (ii) preparing woven layer weaving glass fiber-reinforced nylon 66 complex fiber to form cylindrical skeleton, (iii) providing 25-32 pts. wt. polyacrylamide, 10-17 pts. wt. polyurethane, 0.2-0.8 pts. wt. graphene, 7-14 pts. wt. white carbon black, 5-12 pts. wt. dibutyl phthalate, 1-5 pts. wt. zinc stearate, 6-12 pts. wt. nano magnesium oxide, 0.5-1.8 pts. wt. light stabilizing agent, and 1.2-2.5 pts. wt. antioxidant, adding polyacrylamide and polyurethane in reaction kettle, mixing uniformly, raising temperature to 60-70 degrees C, adding graphene, reacting for 1-2 hours at constant temperature to obtain product b1, mixing product b1, dibutyl phthalate, zinc stearate, and nano-magnesium oxide, placing in shearing machine, dispersing for 20-30 minutes, mixing white carbon black, shearing at 2000 revolutions/minute, adding light stabilizer, and antioxidant, and uniformly mixing to obtain reinforcing outer layer material, and (iv) placing liner cylinder in dipping tank for dipping, inserting liner cylinder into the knitting layer, coating outer surface of the woven layer with reinforcing outer layer material, and drying to obtain fire hose.