A kind of hybrid wall material nanocapsule of phase change energy storage material and preparation method thereof
A technology of phase-change energy storage materials and nanocapsules, which is applied in the field of hybrid wall material nanocapsules of phase-change energy storage materials and its preparation, can solve the problems of high brittleness and poor mechanical strength, and achieve regular shape and small impact , The effect of the simple and easy preparation method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0038] In a 100 mL three-necked bottle, 1.0 g of n-octadecane, 0.75 mL of TEOS, 0.375 mL of MPS, 0.375 mL of styrene, and 0.015 g of AIBN were added, and mixed to form an oil phase. Thereafter, 28.5 mL of water and 14.2 mL of ethanol were sequentially added to the three-necked flask, and the water and the ethanol were mixed together as an aqueous phase. Then, 0.246 g of CTAB was added into the three-necked flask, and the mixture was magnetically stirred at 35° C. for 30 min, and the rotational speed was 1500 r / min. Immediately thereafter, ultrasonic cleaner (Model KQ-400KDB, 100% amplitude) was used to sonicate at 35°C for 10 min to form a stable miniemulsion. Nitrogen was passed through the three-necked flask for 30 min, and then 1.04 mL of ammonia water with a mass concentration of 25 wt % was added. Continue to pass nitrogen protection, put the three-necked flask in an oil bath at 80 °C, and stir magnetically for 4 h at a stirring rate of 300 r / min. In this process, TEOS ...
Embodiment 2
[0040] In a 1000mL beaker, add 10g n-octadecane, 7.5mL TEOS, 3.75mL MPS, 3.75mL styrene, and 0.15g AIBN to form an oil phase after mixing. After that, 285 mL of water and 142 mL of ethanol were sequentially added to the beaker, and the water and ethanol were mixed together as an aqueous phase. Then, 2.46 g of CTAB was added to the beaker, and emulsified at 35° C. with high-speed shearing (Ultra Turrax T25 type, 10000 r / min) for 2 min. Immediately thereafter, a sonicator (model VCX-750, 40% amplitude) was used for 10 min at 35°C to form a stable miniemulsion. The mini-emulsion was poured into a 500-mL three-necked bottle, and nitrogen gas was passed in for 30 min, and then 10.4 mL of ammonia water with a mass concentration of 25 wt % was added. The three-necked flask was continuously protected by nitrogen, and placed in an oil bath at 80° C., and stirred magnetically for 4 hours at a stirring rate of 300 r / min. During this process, TEOS and MPS undergo a hydrolysis-condensati...
Embodiment 3
[0042] In a 1000 mL beaker, add 10 g of n-butyl stearate, 10 mL of vinyltrimethoxysilane, 5 mL of methyl methacrylate, and 0.15 g of tert-butyl hydroperoxide to form an oil phase after mixing. After that, 320 mL of water and 107 mL of ethanol were sequentially added to the beaker, and the water and ethanol were mixed together as an aqueous phase. Then, 2.00 g of sodium dodecyl sulfate was added to the beaker, and the mixture was emulsified at 35° C. with high-speed shearing (Ultra Turrax T25 type, 10000 r / min) for 2 min. Immediately thereafter, a sonicator (model VCX-750, 40% amplitude) was used for 10 min at 35°C to form a stable miniemulsion. The mini-emulsion was poured into a 500 mL three-necked flask, and nitrogen gas was passed in for 30 min, and then 2.0 mL of sodium hydroxide solution with a mass concentration of 5 wt % was added. The three-necked flask was continuously protected by nitrogen, and placed in an oil bath at 80° C., and stirred magnetically for 3 hours at...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| melting point | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More