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Preparation of paraffin/silicone rubber microencapsulated phase change materials

A technology of phase change microcapsules and silicone rubber, which is applied in the field of thermal insulation materials, and achieves the effects of convenient use, wide application prospects, and simple preparation process

Inactive Publication Date: 2018-04-06
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to prepare a material with good physical properties, mechanical properties and chemical properties, and good heat and cold resistance, and requires the material to have a long service life; further, the present invention provides a The preparation method of microcapsules has low preparation cost, simple process, and the preparation process is green and pollution-free. Using the chemical stability and heat resistance of silicone rubber and paraffin microspheres, the self-developed paraffin microspheres are used as modifiers to prepare A material with good thermal insulation performance; further, the present invention provides a method for preparing micron-sized paraffin microspheres, the paraffin microspheres prepared by this method increase the chemical stability of the microcapsules of the present invention, and utilize fluorosilicon The heat resistance, stability and mechanical properties of rubber are used to make a thermal insulation material with long service life, good chemical stability and high mechanical bonding strength

Method used

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  • Preparation of paraffin/silicone rubber microencapsulated phase change materials
  • Preparation of paraffin/silicone rubber microencapsulated phase change materials
  • Preparation of paraffin/silicone rubber microencapsulated phase change materials

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as Figure 1~3 As shown, the paraffin silicone rubber phase-change microcapsule composite material is characterized in that it includes: a silicone rubber / paraffin microsphere composite composed of silicone rubber and paraffin microspheres.

[0027] The material of the silicone rubber includes H1100 room temperature vulcanized fluorosilicone rubber (Shenzhen Guanheng Co., Ltd.).

[0028] The paraffin microspheres are micron-sized paraffin microspheres.

[0029] The preparation method of paraffin silicone rubber phase change microcapsule composite material is characterized in that: comprising the following steps:

[0030] S01, weigh the paraffin microspheres according to the mass ratio and put them in a beaker, add an appropriate amount of aqueous solution, and add a surfactant to it and stir for 5 minutes; the mass ratio is paraffin:surfactant=10:2.

[0031] S02, take the silicone rubber according to the mass ratio, add curing agent (curing agent: silicone rubber...

Embodiment 2

[0038] Such as Figure 1~3 As shown, the paraffin silicone rubber phase change microcapsule composite material is characterized in that it includes: a silicone rubber / paraffin microsphere composite made of silicone rubber and paraffin microspheres.

[0039] The material of the silicone rubber includes H1100 room temperature vulcanized fluorosilicone rubber (Shenzhen Guanheng Co., Ltd.).

[0040] The paraffin microspheres are micron-sized paraffin microspheres.

[0041] The preparation method of paraffin silicone rubber phase change microcapsule composite material is characterized in that: comprising the following steps:

[0042] S01, weigh the paraffin microspheres according to the mass ratio and put them in a beaker, add an appropriate amount of aqueous solution, and add a surfactant to it and stir for 5 minutes; the mass ratio is paraffin:surfactant=10:3.

[0043] S02, take the silicone rubber according to the mass ratio, add curing agent (curing agent: silicone rubber=1:1...

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Abstract

The invention discloses a preparation method and a characterization method of paraffin / silicone rubber microencapsulated phase change materials. The paraffin / silicone rubber microencapsulated phase change materials are characterized by comprising composite materials composed of paraffin as core materials and silicone rubber as wall materials. According to the preparation method and the characterization method of the paraffin / silicone rubber microencapsulated phase change materials, the thermal insulation function of the materials can be achieved, moreover, the preparation cost is low, the process is simple, and the preparation process is green and non-polluting; the preparation method and the characterization method have broad application prospects in building materials and the other thermal insulation materials.

Description

technical field [0001] The invention relates to a paraffin-silicone rubber phase-change microcapsule composite material and a preparation method thereof, in particular to a paraffin-silicone rubber phase-change microcapsule composite material for building heat preservation and a preparation method thereof, belonging to the technical field of thermal insulation materials. Background technique [0002] The most important threat facing mankind in the 21st century is global warming. Building energy consumption accounts for 40% of global energy consumption and is accompanied by greenhouse gas emissions, which play a pivotal role in global warming. Therefore, improving the utilization rate of energy in the construction field is of great help to alleviating the energy crisis and solving environmental problems. As a phase change material (phase change materials, PCM), paraffin wax has high phase change latent heat, no supercooling and precipitation phenomenon, and is widely used in ...

Claims

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Application Information

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IPC IPC(8): C09K5/06B01J13/02
CPCB01J13/02C09K5/063
Inventor 张佳星谢忱张鑫鑫周敏桑成功冒海波鲁天暄
Owner NANJING INST OF TECH
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