Phase change heat storage material and preparation method and application thereof
A technology of phase change heat storage and phase change latent heat, applied in the field of energy storage, can solve the problems of reducing the service life of heat storage products, poor heat storage capacity, supercooling, etc., and achieve high application potential, low supercooling degree, phase change process reversible effect
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Embodiment 1
[0029] The raw materials are composed of: 70 parts by weight of sodium acetate trihydrate; 5 parts by weight of phase transition point regulator diethylamine; 20 parts by weight of softening agent glycerol; 1.08 parts by weight of nucleating agent activated carbon; 0.5 parts by weight; 10 parts by weight of water.
[0030] The step cooling curve data of the prepared samples are shown in Table 1:
[0031] temperature(℃) time (min) 65.3-50 17 50-40 20 40-35 20 35-30 120
[0032] The step cooling curves of the prepared samples are as follows figure 1 .
Embodiment 2
[0034] The raw materials are composed of: 55 parts by weight of sodium acetate trihydrate; 2 parts by weight of phase transition point regulator diethylamine; 20 parts by weight of softening agent glycerol; 1.08 parts by weight of nucleating agent activated carbon; 0.5 parts by weight; 15 parts by weight of water.
[0035] The step cooling curve data of the prepared samples are shown in Table 2:
[0036] temperature (°C) time (min) 65.9-48.2 31 48.2-45 76 45-40 28 40-35 27
[0037] The step cooling curves of the prepared samples are as follows figure 2 .
Embodiment 3
[0039] The raw materials are composed of: 60 parts by weight of sodium acetate trihydrate; 5 parts by weight of phase transition point regulator diethylamine; 30 parts by weight of softening agent glycerol; 1.08 parts by weight of nucleating agent activated carbon; 1 part by weight; 10 parts by weight of water.
[0040] The step cooling curve data of the prepared samples are shown in Table 3:
[0041] temperature (°C) time (min) 65.6-50 24 50-45 14 45-40 76 40-35 41
[0042] The step cooling curves of the prepared samples are as follows image 3 .
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