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MQ silicon resin coated phase change micro-capsule as well as preparation method and application thereof

A technology of MQ silicone resin and phase-change microcapsules, which is applied in the preparation of microcapsule preparations and microspheres, can solve the problems of easy leakage of phase-change materials, and achieve the effects of improving anti-leakage performance, alleviating leakage, and improving compatibility

Pending Publication Date: 2021-11-26
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the application provides a MQ silicone resin-coated phase-change microcapsule and its preparation method and application, which can solve the technical problem that the phase-change material in the phase-change microcapsule prepared by the prior art is easy to leak

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  • MQ silicon resin coated phase change micro-capsule as well as preparation method and application thereof

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Effect test

Embodiment 1

[0032] This embodiment 1 provides the first preparation method of MQ silicone resin-coated phase-change microcapsules, including the following steps.

[0033] Step 1, preparing a solution of MQ silicone resin-coated phase-change microcapsules.

[0034] Step 101, first weigh 200g of absolute ethanol, 100g of paraffin and 100g of methyl MQ silicone resin and place them in a 1000ml three-necked flask, then install a reflux condenser, a stirring device and a glass stopper on the three flasks, and finally put the 1000ml The three-necked flask is placed in a water bath or an oil bath;

[0035] Step 102, control the heating temperature of the water bath or oil bath to be above 60° C., and control the stirring device to heat and stir at a stirring speed of 500 r / min and condense and reflux for 2 hours to obtain the MQ silicone resin-coated phase-change microcapsule solution.

[0036] Step 2, preparing MQ silicone resin-coated phase-change microcapsule suspension.

[0037] Step 201, ...

Embodiment 2

[0043] This embodiment 2 provides the first preparation method of MQ silicone resin-coated phase-change microcapsules, including the following steps.

[0044] Step 1, the method for preparing the MQ silicone resin-coated phase-change microcapsule solution.

[0045] Step 101, first weigh 200g of absolute ethanol, 100g of organic silicon wax and 100g of methyl MQ silicone resin and place them in a 1000ml three-necked flask, then respectively install a reflux condenser, a stirring device and a glass stopper at the mouths of the three flasks, and finally Place the 1000ml three-neck flask in a water bath or oil bath;

[0046] Step 102, control the heating temperature of the water bath or oil bath to be above 60° C., and control the stirring device to heat and stir at a stirring speed of 500 r / min and condense and reflux for 2 hours to obtain the MQ silicone resin-coated phase-change microcapsule solution.

[0047] Step 2, preparing MQ silicone resin-coated phase-change microcapsul...

Embodiment 3

[0053] This embodiment 3 provides the first preparation method of MQ silicone resin-coated phase-change microcapsules, including the following steps.

[0054] Step 1, the method for preparing the MQ silicone resin-coated phase-change microcapsule solution.

[0055] Step 101, first weigh 200g of absolute ethanol, 100g of paraffin and 100g of vinyl MQ silicone resin and place them in a 1000ml three-necked flask, then respectively install a reflux condenser, a stirring device and a glass stopper at the mouths of the three flasks, and finally place the 1000ml The three-necked flask is placed in a water bath or an oil bath;

[0056] Step 102, control the heating temperature of the water bath or oil bath to be above 60° C., and control the stirring device to heat and stir at a stirring speed of 500 / min, and condense and reflux for 2 hours to obtain the MQ silicone resin-coated phase-change microcapsule solution.

[0057] Step 2, preparing MQ silicone resin-coated phase-change micro...

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Abstract

The invention belongs to the technical field of phase change energy storage materials, and particularly relates to an MQ silicon resin coated phase change micro-capsule as well as a preparation method and application thereof. The invention provides an MQ silicon resin coated phase change micro-capsule. The MQ silicon resin coated phase change micro-capsule comprises MQ silicon resin and a phase change material, and the MQ silicon resin coats the phase change material, wherein the MQ silicon resin is of a three-dimensional cross-linked network structure and can well adapt to heat absorption expansion of the phase change material, the defects of cracks and the like of a coating layer are prevented, the matching performance with the thermal expansion rate of the phase change material is improved, leakage caused by volume expansion in the phase change process of the phase change material is relieved, and the anti-leakage performance of the phase change micro-capsule is improved; and according to the MQ silicon resin coated phase change micro-capsule as well as the preparation method and the application thereof, the technical problem that a phase change material in a phase change micro-capsule prepared in the prior art is easy to leak can be solved.

Description

technical field [0001] The application belongs to the technical field of phase-change energy storage materials, and in particular relates to a MQ silicone resin-coated phase-change microcapsule and its preparation method and application. Background technique [0002] Because the solid-liquid phase change material is heated and transformed into a liquid state, it is easy to flow and pollute the use environment. At the same time, some phase change materials also have defects such as low thermal conductivity and flammability, which limit the application range of solid-liquid phase change materials; through Phase-change microencapsulation technology prepares phase-change materials into micron or nano-particles, and then coats them with a stable molecular film to obtain micro-nanocapsules with a core-shell structure, so that the phase-change materials are not affected by the external environment and The influence of the working fluid can solve the problems of easy flow and pollut...

Claims

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Application Information

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IPC IPC(8): B01J13/02
CPCB01J13/02Y02E60/14
Inventor 陈榕
Owner GUANGDONG UNIV OF TECH
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