Multifunctional macromolecule nano energy storage agent
A nano-polymer and multi-functional technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problem of only applicable energy storage agents for air conditioners, and achieve the effects of high latent heat of phase change, stable properties, and high boiling point
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Embodiment 1
[0014] 1) Stir and mix 48kg of distilled water and 1.5kg of polyvinyl alcohol (commercially available 17-99 type), heat to 60°C, stir to make it fully miscible, continue to heat to 70°C, and add 0.5kg while stirring Borax, mixed evenly, kept at 70°C for half an hour, cooled to obtain mixture A;
[0015] 2) First add 0.4kg of benzotriazole to 8kg of propylene glycol, stir for about 15 minutes, then add 40kg of glycerol, mix well, then add 1.5kg of nano-titanium dioxide while stirring, and mix well to obtain mixture B;
[0016] 3) Mix mixture A and mixture B together, stir well, then add 0.1kg triethanolamine, 2kg sodium benzoate, 0.01kg phosphoric acid, 0.1kg sodium molybdate, 0.1kg sodium nitrite, 0.02kg di-tert-butyl p-methyl Phenol (antiaging agent 264) is mixed evenly to obtain nano-polymer multifunctional energy storage agent.
[0017] The phase transition temperature of the obtained energy storage agent is -5-10 DEG C, and the latent heat of phase transition is 260-350KJ...
Embodiment 2
[0019] 1) Stir and mix 49kg of distilled water and 0.8kg of polyvinyl alcohol, heat to 60°C and stir to make it fully miscible, continue heating to 75°C, add 0.2kg of borax while stirring, mix well, and keep at 75°C for 30 After 1 minute, cool to obtain mixture A;
[0020] 2) First add 0.2kg of benzotriazole to 4kg of propylene glycol, stir for 15 minutes, then add 30kg of glycerol, mix well, then add 0.5kg of nano-titanium dioxide, and 15kg of distilled water, mix well to obtain mixture B ;
[0021] 3) Mix the mixtures A and B into one, stir well, then add 0.1kg triethanolamine, 2kg sodium benzoate, 0.01kg phosphoric acid, 0.1kg sodium molybdate, 0.1kg sodium nitrite, 0.02kg di-tert-butyl p-cresol (antiaging agent 264) and mix well to obtain nano-polymer multifunctional energy storage agent.
[0022] The phase transition temperature of the obtained energy storage agent is -1-7°C, and the latent heat of phase transition is 170-230KJ / kg.
Embodiment 3
[0024] 1) Stir and mix 48kg of distilled water and 0.6kg of polyvinyl alcohol, heat to 60°C, stir to make them fully miscible, continue to heat to 70°C, add 0.1kg of borax while stirring, mix well, and keep at 70°C After half an hour, it was cooled to obtain mixture A;
[0025] 2) First add 0.4kg of benzotriazole to 10kg of propylene glycol, stir for about 15 minutes, then add 40kg of glycerol, mix well, then add 0.1kg of nano-titanium dioxide while stirring, and mix well to obtain mixture B;
[0026] 3) Mix mixture A and mixture B together, stir well, then add 0.1kg triethanolamine, 2kg sodium benzoate, 0.01kg phosphoric acid, 0.1kg sodium molybdate, 0.1kg sodium nitrite, 0.02kg di-tert-butyl p-methyl Phenol (antiaging agent 264) is mixed evenly to obtain nano-polymer multifunctional energy storage agent.
[0027] The obtained energy storage agent has a phase transition temperature of 2-10°C and a phase transition latent heat of 150-220KJ / kg.
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