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Anti-ultraviolet type phase-change material nano-capsule and preparation method thereof

A phase change material and anti-ultraviolet technology, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problem of no phase change temperature control function, achieve low supercooling, significant anti-ultraviolet effect, and improve supercooling The effect of the phenomenon

Inactive Publication Date: 2018-04-20
GUANGDONG JUHANG INST FOR ADVANCED MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The notification number is CN103013180B, which discloses microcapsules with anti-ultraviolet function prepared by using nano-cerium oxide as the core material and polymer material as the wall material. However, the capsule has no phase change temperature control function.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This implementation discloses an anti-ultraviolet phase-change material nanocapsule. The anti-ultraviolet phase-change material nanocapsule uses a combination of n-octadecane and nano-antimony-doped tin dioxide as the core material, and uses styrene and methacrylic acid as the core material. The copolymer of stearyl ester is the wall material.

[0034] The present invention also provides a preparation method for preparing the above-mentioned anti-ultraviolet phase change material nanocapsules, comprising the following steps:

[0035] (1) Prepare the following raw materials in percentage by weight: 0.12 parts of emulsifier, 60 parts of pure water, 39 parts of n-octadecane, 3 parts of nano antimony-doped tin dioxide, 0.015 part of initiator, 6 parts of stearyl methacrylate, 18 parts of styrene, 2 parts of crosslinking agent;

[0036] (2) Dissolve the emulsifier in pure water to prepare a water phase, and control the temperature between 38°C for later use;

[0037] (3) A...

Embodiment 2

[0041] This implementation discloses an anti-ultraviolet phase-change material nanocapsule. The anti-ultraviolet phase-change material nanocapsule uses a combination of n-octadecane and nano-antimony-doped tin dioxide as the core material, and uses styrene and methacrylic acid as the core material. The copolymer of stearyl ester is the wall material.

[0042] The present invention also provides a preparation method for preparing the above-mentioned anti-ultraviolet phase change material nanocapsules, comprising the following steps:

[0043] (1) Prepare the following raw materials in weight percentage: 0.15 parts of emulsifier, 84 parts of pure water, 54 parts of n-octadecane, 21 parts of nano antimony-doped tin dioxide, 0.05 part of initiator, 13 parts of stearyl methacrylate, 30 parts of styrene, 4 parts of crosslinking agent.

[0044] (2) Dissolve the emulsifier in pure water to prepare a water phase, and control the temperature between 45°C for later use;

[0045](3) Afte...

Embodiment 3

[0049] This implementation discloses an anti-ultraviolet phase-change material nanocapsule. The anti-ultraviolet phase-change material nanocapsule uses a combination of n-octadecane and nano-antimony-doped tin dioxide as the core material, and uses methyl methacrylate and The copolymer of octadecyl methacrylate is used as wall material.

[0050] The present invention also provides a preparation method for preparing the above-mentioned anti-ultraviolet phase change material nanocapsules, comprising the following steps:

[0051] (1) Prepare the following raw materials in weight percentage: 0.1 part of emulsifier, 62 parts of pure water, 35 parts of n-octadecane, 1 part of nano antimony-doped tin dioxide, 0.01 part of initiator, 5 parts of stearyl methacrylate, 16 parts of methyl methacrylate, 1.4 parts of crosslinking agent;

[0052] (2) Dissolve the emulsifier in pure water to prepare a water phase, and control the temperature between 38°C for later use;

[0053] (3) After mi...

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Abstract

The invention belongs to the technical field of a phase-change material nano-capsule, and in particular discloses an anti-ultraviolet type phase-change material nano-capsule and a preparation method thereof. In the anti-ultraviolet type phase-change material nano-capsule, a combined body of n-octadecane and nanometer stibium doped tin dioxide serves as a core material, and a copolymer of styrene and methylacrylic acid octadecyl ester or a copolymer of methyl methacrylate and methylacrylic acid octadecyl ester serves as a wall material. The anti-ultraviolet type phase-change material nano-capsule prepared by the method has the function of absorbing ultraviolet rays while realizing heat storage and temperature control and having low supercooling degree, solves the problems that the phase-change material nano-capsule encounters supercooling in actual application and is liable to age when being subjected to ultraviolet irradiation, and is widely applied in the fields of textile fiber, fabric, building coating and the like.

Description

technical field [0001] The invention belongs to the technical field of phase-change material capsules, and in particular relates to an anti-ultraviolet phase-change material nanocapsule and a preparation method thereof. Background technique [0002] Phase-change material capsules are tiny containers formed by coating phase-change materials with polymers, metals, or inorganic non-metals. Capsules with a particle size of less than 1 micron are called phase-change material nanocapsules. Because n-octadecane has a phase transition temperature close to that of the human body, it is widely used in the field of energy storage and temperature regulation in textile fibers and fabrics. [0003] The encapsulation of n-octadecane can prevent its leakage and migration during use. The smaller the particle size of the capsule, it is not only conducive to the higher heat conversion efficiency of the capsule, but also conducive to its temperature regulation by spinning. fiber. However, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/063
Inventor 唐孝芬陈旭东朱永祥许宏武汤立文吴浪甄智勇钟璐
Owner GUANGDONG JUHANG INST FOR ADVANCED MATERIALS CO LTD
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