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A kind of preparation method of double-shell micro-nano capsule temperature-humidity regulator

A regulator, micro-nano technology, applied in the directions of microcapsule preparation, microsphere preparation, chemical instruments and methods, etc., can solve the problem of failing to reach the nanometer scale, unable to produce temperature and humidity regulation, nanocapsules without moisture storage performance, etc. problem, to achieve the effect of increasing compatibility and increasing humidity control function

Inactive Publication Date: 2015-10-21
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, although other researchers have used interfacial polymerization and in situ synthesis to prepare double-shell capsule phase change materials, they have not reached the nanoscale
In addition, some researchers have prepared double-walled nanocapsules phase change materials by using the template method of interfacial polymerization of miniemulsions. However, due to the limitation of shell materials and methods, the prepared nanocapsules do not have moisture storage performance, and cannot produce dual effects of temperature and humidity regulation during use.

Method used

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  • A kind of preparation method of double-shell micro-nano capsule temperature-humidity regulator
  • A kind of preparation method of double-shell micro-nano capsule temperature-humidity regulator
  • A kind of preparation method of double-shell micro-nano capsule temperature-humidity regulator

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 0.55 g of sodium lauryl sulfate emulsifier, 100 g of deionized water, and 0.05 g of ethanol into a three-necked flask, and stir to obtain an aqueous phase liquid. Then take by weighing 5g of n-octadecane, 5g of styrene, 4g of methyl methacrylate, 0.5g of co-emulsifier hexadecane, 0.2g of initiator azobisisobutyronitrile, 0.5g of diethylene Base benzene mixed evenly, as an oil phase liquid. After mixing 100.6 g of the water phase liquid and 15.2 g of the oil phase liquid, they were emulsified for 5 min in a water bath with a stirring speed of 500 rpm and a temperature of 40° C. to obtain a pre-emulsion. 115.8g of the pre-emulsion was ultrasonicated under the conditions of power of 150W and time interval of 2s, and dispersed for 10min under the protection of an ice-water bath to obtain a fine emulsion. Take by weighing 3g chitosan, the aqueous solution of 7g1% acetic acid mixes for subsequent use. Weigh 115.8g of the mini-emulsion and put it into a four-necked fla...

Embodiment 2

[0030] Weigh 0.37g of sodium lauryl sulfate emulsifier, 100g of deionized water, and 0.05g of ethanol into a three-necked flask, and stir to obtain an aqueous phase liquid. Then take by weighing 5g of n-octadecane, 5g of styrene, 4g of methyl methacrylate, 0.5g of co-emulsifier hexadecane, 0.2g of initiator azobisisobutyronitrile, 0.5g of diethylene Base benzene mixed evenly, as an oil phase liquid. After mixing 100.4 g of the water phase liquid and 15.2 g of the oil phase liquid, they were emulsified for 5 min in a water bath with a stirring speed of 500 rpm and a temperature of 40° C. to obtain a pre-emulsion. 115.6g of the pre-emulsion was ultrasonicated under the conditions of power of 150W and time interval of 2s, and dispersed for 10min under the protection of an ice-water bath to obtain a fine emulsion. Take by weighing 3g chitosan, the aqueous solution of 7g1% acetic acid mixes for subsequent use. Weigh 115.6g of the mini-emulsion and put it into a four-necked flask ...

Embodiment 3

[0032] Weigh 1 g of sodium lauryl sulfate emulsifier, 100 g of deionized water, and 0.05 g of ethanol into a three-necked flask, and stir to obtain an aqueous phase liquid. Then take by weighing 5g of n-octadecane, 5g of styrene, 4g of methyl methacrylate, 0.5g of co-emulsifier hexadecane, 0.2g of initiator azobisisobutyronitrile, 0.5g of diethylene Base benzene mixed evenly, as an oil phase liquid. After mixing 101.05 g of the water phase liquid and 15.2 g of the oil phase liquid, they were emulsified for 5 min in a water bath with a stirring speed of 500 rpm and a temperature of 40° C. to obtain a pre-emulsion. 116.25g of the pre-emulsion was ultrasonicated under the conditions of power of 150W and time interval of 2s, and dispersed for 10min under the protection of an ice-water bath to obtain a fine emulsion. Take by weighing 3g chitosan, the aqueous solution of 7g1% acetic acid mixes for subsequent use. Weigh 116.25g of the mini-emulsion and put it into a four-necked fla...

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Abstract

The invention discloses a preparation method of a double-shell micro-nano capsule temperature and humidity regulator. The prepared double-shell micro-nano capsule temperature and humidity regulator consists of a core, an inner shell of the core and an outer shell, wherein the core is a phase change material, the inner shell is a hydrophobic layer and the outer shell is an oleophobic layer. The preparation method comprises preparation of water-phase liquid, oil-phase liquid, miniemulsion as well as a double-shell regulator. The prepared double-shell micro-nano capsule temperature and humidity regulator can be used for preparing a gypsum interior-wall coating material. The conventional gypsum material generates a new function. A goal of multifunctional gypsum is realized, and therefore, the preparation method has significance in improving and sustaining living environment of people.

Description

technical field [0001] The invention relates to the field of heat storage and moisture storage building materials, in particular to a preparation method of a double-shell micro-nano capsule temperature-humidity regulator. Background technique [0002] Building energy saving is a strategic goal of my country's long-term development. Making full use of the inexhaustible solar energy as clean energy has become the wind vane of building energy saving. Phase change materials are a kind of latent heat storage materials. In terms of energy, it can be combined with building materials to maximize the use of solar energy in a passive manner. Therefore, it is an energy-saving material that does not need to provide additional energy and can be recycled. In recent years, it has received widespread attention. According to the preparation characteristics of phase change material encapsulation, it can be prepared as Microencapsulated or Nanoencapsulated. Due to the small diameter of nanocaps...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/16C09K5/06
Inventor 尚建丽董莉王思倪勃赵喜龙
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY