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A kind of micro-foaming phase change paraffin material and preparation method thereof

A phase-change paraffin and micro-foaming technology, applied in the field of material science, can solve problems such as difficulty in shaping, and achieve the effects of simple preparation method and expanded application field.

Active Publication Date: 2018-07-24
福建天利高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the phase change material will change between solid and liquid during the phase change, it is not easy to shape, how to stably combine it with building materials or other materials in the prior art is a big technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Weigh 100g of 25# paraffin, heat and melt in a 50°C water bath;

[0027] 2. Pour 30g of EL-30 into the melted paraffin and stir to form an emulsion;

[0028] 3. Add 50g of liquid thermosetting phenolic resin, 5g of n-pentane, and 3g of phosphoric acid into the emulsion, and stir thoroughly;

[0029] 4. Add 8g of methanesulfonic acid into the system and perform mechanical stirring;

[0030] 5. Add the stirred system into a mold at 100°C for foaming and curing for 10 minutes;

[0031] 6. Take out the material and cool down to get the phase change energy storage board;

[0032] 7. The measured density of the phase change energy storage board is 940Kg / m 3 .

[0033] Putting the phase change energy storage board into an oven at 130°C did not reveal any paraffin leakage. Measured by a universal testing machine, the compressive strength of the phase change energy storage plate is > 1.5Mpa and measured by a differential scanning calorimeter, the phase change point of th...

Embodiment 2

[0035] 1. Weigh 100g of 30# paraffin, put it into a 50℃ water bath to heat and melt;

[0036] 2. Pour 25g of EL-40 into the melted paraffin and stir to form an emulsion;

[0037] 3. Add 50g of liquid thermosetting phenolic resin, 5g of n-pentane, and 3g of phosphoric acid into the emulsion, and stir thoroughly;

[0038] 4. Add 8g of methanesulfonic acid into the system and perform mechanical stirring;

[0039] 5. Add the stirred system into a mold at 100°C for foaming and curing for 10 minutes;

[0040] 6. Take out the material and cool down to get the phase change energy storage board;

[0041] 7. The measured density of the phase change energy storage board is 900Kg / m 3 .

[0042] Putting the phase change energy storage board into an oven at 110°C did not reveal any paraffin leakage. Measured by a universal testing machine, the compressive strength of the phase change energy storage plate> 1.5Mpa, measured by a differential scanning calorimeter, the phase change point o...

Embodiment 3

[0044] 1. Weigh 100g of 35# paraffin, put it in a 50°C water bath to heat and melt;

[0045] 2. Pour 35g of EL-30 into the melted paraffin and stir to form an emulsion;

[0046] 3. Add 50g of liquid thermosetting phenolic resin and 5g of n-pentane to the emulsion, and stir thoroughly;

[0047] 4. Add 15 g of mixed acid (p-toluenesulfonic acid: p-toluenesulfonic acid mother liquor: water: phosphoric acid = 5:1:2:2) into the system, and perform mechanical stirring;

[0048] 5. Add the stirred system into a mold at 100°C for foaming and curing for 10 minutes;

[0049] 6. Take out the material and cool down to get the phase change energy storage board;

[0050] 7. The measured density of the phase change energy storage board is 870Kg / m 3 .

[0051] No paraffin leakage was found when the phase change energy storage board was placed in an oven at 100°C. Measured by a universal testing machine, the compressive strength of the phase change energy storage plate is > 1.0Mpa and mea...

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Abstract

The invention relates to the technical field of materials, in particular to a micro-foaming phase change paraffin material and a preparation method thereof. The micro-foaming phase change paraffin material is mainly prepared from, by weight, 10-60 parts of paraffin, 20-40 parts of liquid thermoset phenolic resin, 10-20 parts of an emulsifying agent, 2-10 parts of a curing agent and 1-5 parts of a foaming agent. According to the micro-foaming phase change paraffin material prepared through the method, micropores of a foaming material are filled with paraffin, paraffin is completely wrapped in the foaming process and will not leak when changing between the solid phase and the liquid phase, and thus the micro-foaming phase change paraffin material prepared through the method can be applied to the field of building energy-saving materials or other energy-saving materials.

Description

technical field [0001] The invention relates to the field of material science, in particular to a microfoaming phase-change paraffin wax material and a preparation method thereof. Background technique [0002] Phase change materials have the ability to change their physical state within a certain temperature range. Take the solid-liquid phase change as an example. When heated to the melting temperature, a phase change from solid to liquid occurs. During the melting process, the phase change material absorbs and stores a large amount of latent heat; when the phase change material cools, the stored Heat must be dissipated to the environment within a certain temperature range, and a reverse phase change from liquid to solid is carried out. During these two phase transitions, the energy stored or released is called the latent heat of phase transition. When the physical state changes, the temperature of the material itself remains almost unchanged until the phase transition is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L91/06C08L61/06C08K3/32C09K5/06C08J9/14
CPCC08J9/141C08J2203/14C08J2391/06C08J2461/06C08L91/06C09K5/06C08L61/06C08K2003/329
Inventor 池佩富连惠山戢超黄金登郑勇
Owner 福建天利高新材料有限公司
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