▎ 摘　　要

NOVELTY - Anti-mildew and hydrolysis-resistant polyurethane airtight oxygen chamber material, comprises 35-50 pts. wt. high-strength hydrophobic polyurethane, 6-12 pts. wt. auxiliary agent, 15-30 pts. wt. rare earth complex, 8-15 pts. wt. composite filler, 1-3 pts. wt. modified polyisocyanate curing agent, 5-10 pts. wt. hindered phenol antioxidant and modified polyisocyanate curing agent is based on polyisocyanate raw material and using acrylic ester monomer, performing hydroxy end capping to polyisocyanate, performing free radical copolymerization, performing hydrophilic modification and synthesizing the modified polyisocyanate curing agent. USE - Used as anti-mildew and hydrolysis-resistant polyurethane airtight oxygen chamber material. ADVANTAGE - The mildew-resistant hydrolysis-resistant polyurethane airtight oxygen cabin material has fast gel, high hardness and high anti-breaking tensile property, has anti-mildew and anti-bacteria, waterproof and hydrolytic-resistant, high adhesive force, good water dispersibility, anti-aging function and high adhesion and easy to be affected by the environment to quickly aging in the using process, the bacteria is long and mildew, the stability is bad and shortens the use life of the air-tight oxygen chamber. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing anti-mildew and hydrolysis-resistant polyurethane airtight oxygen chamber material, comprising (i) mixing the phenol and formaldehyde aqueous solution, the phenol-formaldehyde-water mixed solution is stirring uniformly and using the heating furnace to heat the phenol-formaldehyde-water mixed solution for the first time and adding ammonia water dropwise to the phenol-formaldehyde-water mixed solution. The heating furnace is heated for the second time and adding castor oil is dropwise to the phenol-formaldehyde water mixed solution and heating furnace is heated for the third time and vacuum distillation, the heating furnace is cooling at 30-45℃, and adding ethylene glycol to the mixed solution of phenol-formaldehyde water and keep it warm for 60-80 minutes to obtain castor oil modified phenolic resin, adding castor oil modified phenolic resin, 1,6-hexamethylene diisocyanate, a Propylene glycol, trimethylolethane, dibutyltin dilaurate and acetone is mixing uniformly to obtain mixed solution and placing mixed solution on heating furnace, and the heating furnace conducts the first step on the castor oil modified phenolic resin mixed solution, heating for the first time and vacuumizing the mixed solution, the heating furnace heats the castor oil modified phenolic resin mixed solution for the second time and the heating furnace continues to heat the castor oil modified phenolic resin mixed solution for the third time to obtain high-strength hydrophobic polyurethane after curing, (ii) preparing the two equal parts of acetonitrile, under the protection of nitrogen and adding polyvinyl alcohol and isopropanolamine to the first part of acetonitrile and stirring uniformly to obtain solution A, dissolving phenyl p-nitrochloroformate in the second portion of acetonitrile to obtain solution B and adding solution B to solution A for stirring uniform reaction treatment, the reaction is completed, placing the refrigerator to freeze for 5-10 hours and filtering, evaporating, precipitating and drying to obtain modified polyvinyl alcohol and dissolve chitosan in deionized water to obtain solution C, adding modified polyvinyl alcohol, stirring at 30-35℃ for 20-35 hours and finishing stirring dialysis, rotary evaporation and drying to obtain grafted polyvinyl alcohol and add grafted polyvinyl alcohol to deionized water, adding europium chloride and lanthanum chloride to obtain solution D and adjusting the pH value of the solution D system neutral, reacting at 75-85℃ for 20-30 minutes, the reaction is completed, the rare earth complex is obtained by dialysis, drying and grinding, (iii) using a high-speed mixer to stirring the polyether polyol and catalyst uniformly to obtain mixture, quickly pour accurately measured isocyanate into the mixture and stirring at a high speed to obtain a mixed solution and mixing the stirred pour the mixed liquid into the test molding and release the molding the temperature of the sample formed after the reaction of the raw material components in the mixed solution dropping to room temperature to obtain the hindered phenol antioxidant and (iv) using high speed stirrer to obtain the high strength hydrophobic polyurethane, the rare earth complex and composite filler is mixed, mixing uniformly to obtain oxygen cabin material mixture A, the hindered phenol antioxidant, auxiliary agent and modified polyisocyanate curing agent into the oxygen cabin material mixture B for high speed stirring to obtain the oxygen cabin finished product material.