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Capric acid gel solid-solid phase change material and method thereof

A technology of solid-solid phase change material and capric acid, which is applied in the field of capric acid gel solid-solid phase change material, can solve problems such as leakage, and achieve the effect of simple process flow and short production cycle

Inactive Publication Date: 2013-04-17
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the main problems it faces is the leakage phenomenon during the phase transition process, which can be overcome if the phase transition properties can be changed from solid-liquid phase transition to solid-solid phase transition by electron beam irradiation cross-linking technology ,

Method used

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  • Capric acid gel solid-solid phase change material and method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Process and steps in the present embodiment are as follows:

[0018] Weigh a certain amount of capric acid and put it into a container, heat the container in a 70°C water bath to dissolve all the capric acid; add the radiation sensitizer trimethylolpropane trimethacrylate (TMPTMA) In the dissolved capric acid solution, the content of trimethylolpropane trimethacrylate is 5% of the capric acid amount. Put the container into an ultrasonic cleaner with a water temperature of 70°C-80°C, and oscillate ultrasonically for 15 minutes, so that the two liquids of capric acid and trimethylolpropane trimethacrylate are fully miscible to obtain trimethylolpropane The decanoic acid solution of trimethacrylate; continue to keep the trimethylolpropane trimethacrylate decanoic acid system in a liquid state (at a temperature of 70°C), flush nitrogen into the liquid in the container for 15 minutes, and remove the oxygen in the container Drain, seal container. Under roo...

Embodiment 2

[0022] Change following conditions, other conditions are with embodiment 1.

[0023] Add the radiation sensitizer triethylene glycol dimethacrylate (TMPTMA) into the dissolved capric acid solution, wherein the content of triethylene glycol dimethacrylate is 1% of the amount of capric acid %—9%, the irradiation dose is 120kGy.

[0024] Put the irradiated samples into an oven at 70°C for 1 hour to keep warm. Observe the samples. It is found that except for the samples without radiation sensitizer which are transparent liquids, other irradiated samples have white solids. Taking the capric acid system with 3% radiation sensitizer as an example, the irradiation dose was 120 kGy. The irradiated sample was extracted by Soxhlet extractor, and the gel content of the sample was calculated to be 7.9%.

[0025] The invention adopts the electron beam irradiation technology, and by adding a radiation sensitizer, the decanoic acid molecule containing long-chain hydrocarbons undergoes hydrog...

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Abstract

The invention relates to a capric acid gel solid-solid phase change material and a method thereof, and in particular to a capric acid system which is doped with a multi-allyl acid esters radiation sensitizer by irradiation of high-energy electron beams generated by an electron accelerator. The molecules of the multi-allyl acid esters radiation sensitizer and the molecules of capric acid undergo grafting and cross-linking reaction to produce a hydrophobic capric acid gel material which has a solid-solid phase change property. The invention belongs to the technical field of radiation chemistry and polymer material processing.

Description

Technical field [0001] The present invention involves a solid phase change material and its method, especially a solid phase change material and method of decorative acid gel. Background technique [0002] The phase -changing energy storage material breaks through the single thermal resistance performance of traditional thermal insulation materials (bricks, cement, etc.), which has the characteristics of large potential thermal value, similar to the temperature of storage, and insulation process.Whether the energy storage material can be used in the construction industry depends on the durability, economy and constructionability of the materials.The service life of building materials is usually 50 years, and this requirement is also applicable to phase -changing energy storage materials.However, the solid-hydraulic material will be leaked from the building materials (frost on the surface of the material) during use, which greatly reduces the performance of the energy storage of p...

Claims

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Application Information

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IPC IPC(8): C09K5/02C08F220/04C08J3/24
Inventor 秦争田磊周瑞敏陈赛赛
Owner SHANGHAI UNIV
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