Heat-insulated constant-temperature plastic profile containing shape-stabilized phase change material and production process of heat insulated constant-temperature plastic profile
A technology of plastic profiles and phase change materials, which is applied in the direction of heat exchange materials, layered products, synthetic resin layered products, etc., can solve the problems such as the great difference between the phase change process and the thermal performance of the phase change, and achieve the latent heat of phase change Larger, lower supercooling, and solve the effect of leakage
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[0026] B. Preparation of thermal plastic profile 1 with recessed holes 2: The thermal plastic profile 1 with multiple recessed holes 2 is prepared by extrusion blow molding, the extrusion temperature is 130-190℃, and the blowing air pressure is 0.5- 2Mpa;
[0027] C. Encapsulation of activated carbon 3 with sodium sulfate adsorbed by the stereotyped phase change material: Place the activated carbon 3 with sodium sulfate in the recessed hole 2, and heat the pre-extruded thermal plastic sheet covering layer 4 to 120-190°C, The thermal plastic sheet covering layer 4 is tightly attached to the upper end of the thermal plastic profile 1 with the recessed hole 2, and the recessed hole 2 is closed by pressure. The applied pressure is 0.5-1.5Mpa to obtain the thermal insulation thermostatic plastic profile.
[0028] The thermal plastic profile 1 can be polypropylene, polyethylene or polystyrene.
Example Embodiment
[0029] Example 1
[0030] The production process of heat-insulating thermostatic plastic profiles containing shaped phase change materials includes the following steps:
[0031] A. Preparation of Activated Carbon 3 with Sodium Sulfate Adsorbed by the Shaped Phase Change Material: According to 142 parts of Na 2 SO 4 With 180 parts of H 2 O (molar ratio 1:10), formulated as Na 2 SO 4 Saturated solution; add 100 parts of activated carbon to 30-80 parts of Glauber's salt Na 2 SO 4 Saturated solution to make Na 2 SO 4 Saturated solution is completely absorbed by activated carbon;
[0032] B. Preparation of thermal plastic profile 1 with recessed holes 2: Prepare a polyethylene hollow profile with multiple recessed holes 2 by extrusion blow molding, the distance between the recessed holes 2 is 10mm, and the depth of the recessed holes 2 is 10mm, the radius of the concave hole 2 is 5mm, the extrusion temperature is 130-190℃, and the blowing air pressure is 1Mpa;
[0033] C. Encapsulation ...
Example Embodiment
[0035] Example 2
[0036] The production process of heat-insulating thermostatic plastic profiles containing shaped phase change materials includes the following steps:
[0037] A. Preparation of Activated Carbon 3 with Sodium Sulfate Adsorbed by the Shaped Phase Change Material: According to 142 parts 2 SO 4 With 180 parts of H 2 O (molar ratio 1:10), formulated as Na 2 SO 4 Saturated solution; add 100 parts of activated carbon to 30-80 parts of Glauber's salt Na 2 SO 4 Saturated solution to make Na 2 SO 4 Saturated solution is completely absorbed by activated carbon;
[0038] B. Preparation of thermal plastic profile 1 with recessed holes 2: A polyethylene hollow profile with multiple recessed holes 2 is prepared by extrusion blow molding, the distance between the recessed holes 2 is 15mm, and the depth of the recessed holes 2 is 15mm, the radius of the concave hole 2 is 10mm, the extrusion temperature is 130-190℃, and the blowing air pressure is 1Mpa;
[0039] C. Encapsulation o...
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