Method for preparing phase-change heat-storage fiber membrane with core-shell structure by utilizing coaxial electrospinning technology
A technology of coaxial electrospinning and phase change heat storage, which is applied in fiber processing, fiber chemical characteristics, conjugated rayon, etc., can solve problems such as easy leakage, and achieves low production cost, wide source and simple preparation method. Effect
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[0038] Example 1:
[0039] Adding paraffin wax (melting point 60° C.) to toluene at room temperature and stirring and dissolving for 12 hours to obtain a coaxial electrospinning core layer solution. The mass concentration of paraffin wax in the core layer solution is 20%. Add polymethyl methacrylate (PMMA) to N,N-dimethylformamide (DMF) at room temperature and stir and dissolve for 12 hours to obtain a shell solution of coaxial electrospinning. The mass concentration of PMMA in the shell solution is 20 %. Using the aluminum foil paper as the receiving substrate, the electrospinning core layer solution and the shell layer solution are respectively poured into two syringes, and the two syringes are respectively fixed on the two syringe pumps. Adjust the pushing speed of the core layer solution to 0.5mL / h, the pushing speed of the shell solution to 1mL / h, the receiving distance to 5cm, the voltage to 5kV, and then electrospinning to obtain the paraffin phase change heat storage wit...
Example Embodiment
[0040] Example 2:
[0041] Paraffin wax (with a melting point of 55° C.) was added to toluene at room temperature and stirred and dissolved for 12 hours to obtain a coaxial electrospinning core layer solution. The mass concentration of paraffin wax in the core layer solution was 20%. Add polymethyl methacrylate (PMMA) to N,N-dimethylformamide (DMF) at room temperature and stir and dissolve for 12 hours to obtain a shell solution of coaxial electrospinning. The mass concentration of PMMA in the shell solution is 20 %. Using the aluminum foil paper as the receiving substrate, the electrospinning core layer solution and the shell layer solution are respectively poured into two syringes, and the two syringes are respectively fixed on the two syringe pumps. Adjust the pushing speed of the core solution to 0.5mL / h, the pushing speed of the shell solution to 1mL / h, the receiving distance to 8cm, and the voltage to 10kV, and then electrospinning to obtain a paraffin phase change heat st...
Example Embodiment
[0042] Example 3:
[0043] Adding paraffin wax (melting point 50° C.) to toluene at room temperature and stirring and dissolving for 12 hours to obtain a coaxial electrospinning core layer solution. The mass concentration of paraffin wax in the core layer solution is 30%. Add polymethyl methacrylate (PMMA) to N,N-dimethylformamide (DMF) at room temperature and stir and dissolve for 12 hours to obtain a shell solution of coaxial electrospinning. The mass concentration of PMMA in the shell solution is 20 %. Using the aluminum foil paper as the receiving substrate, the electrospinning core layer solution and the shell layer solution are respectively poured into two syringes, and the two syringes are respectively fixed on the two syringe pumps. Adjust the pushing speed of the core layer solution to 0.5mL / h, the pushing speed of the shell solution to 1mL / h, the receiving distance to 10cm, the voltage to 15kV, and then electrospinning to obtain the paraffin phase change heat storage w...
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