Inorganic phase change energy storage particles, floor heating mortar and preparation method thereof

A technology of inorganic phase change and inorganic phase change materials, which is applied in the field of floor heating mortar and its preparation, and inorganic phase change energy storage particles, can solve the problems of building material performance change, wall damage, phase separation, etc. The effect of preventing loss, avoiding flow and leakage

Active Publication Date: 2021-06-08
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These types of materials have the advantages of suitable phase change temperature, high latent heat of phase change, non-combustibility, and low price. However, due to the phase change during the phase change process, they become liquid phases, phase separation occurs, and leakage occurs. It causes changes in the properties of building materials, precipitates white hairy crystalline salts, and damages the wall surface. Therefore, in order to prevent leakage, it needs to be coated to solve the technical problem of phase separation. However, no coated inorganic energy storage has been seen so far. Particles reported in the literature

Method used

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  • Inorganic phase change energy storage particles, floor heating mortar and preparation method thereof
  • Inorganic phase change energy storage particles, floor heating mortar and preparation method thereof
  • Inorganic phase change energy storage particles, floor heating mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] An inorganic phase change energy storage particles, formulation of floor heating mortar, including the following steps:

[0046] 1, preparation of phosphate methyl starch gum:

[0047] A. The mass percentage of the esterified starch gum comprises: 1.3% sodium dihydrogen phosphate, 9.0% starch, 79.3% of water (including 72.3% in the first step in the formulation). ); 10.4% aqueous NaOH aqueous NaOH (including 1 ‰ in the first step in the formulation) and 10.3% in the first step of the formulation)

[0048] B, formulation:

[0049] The first step: esterification synthesis: After adding water in dihydrogen phosphate, stirred and dissolved, the pH is adjusted with a NaOH aqueous NaOH in a mass percentage concentration of 20%, adding starch, thoroughly stirring dispersion to form a starch, at 65 The reaction was heated under ° C for 20 min to obtain an esterified starch mixed pulp;

[0050] Step 2: Wash of esterification starch: Stay in the esterified starch mixed pulp for more ...

Embodiment 2～8

[0064] Mainly for the preparation of inorganic phase change energy storage particles, the amount of sodium sulfate, gypsum, and cement, water-absorbing resin, phosphate starch gel and water are fixed.

[0065] 1, preparation of phosphate methyl starch gum:

[0066] A. The mass percent composition of the phosphate methyl starch gel is consistent with Example 1;

[0067] B. The formulation of the phosphate formulated starch is consistent with Example 1;

[0068] 2, the preparation of inorganic phase change storage particles:

[0069] a, the composition and mass percentage of ingredients in each embodiment are shown in Table 1;

[0070] B, mix, granulation and cover:

[0071]Tenhydrous sodium sulfate is mixed with water, stir the sodium sodium sulfate to dissolve, add phosphate amyloid gum, stirred and dispersion, add a water absorbing resin, and then add gypsum, stirred and uniform. After formulating a paste mixture, the formulation of the prepared paste mixture was carried out by d...

Embodiment 9～14

[0081] Mainly for the preparation of inorganic phase change energy storage particles, water, water absorbing resin, phosphate starch, gypsum, and cement and other amounts are changed, and the amount of sodium sodium sulfate is fixed.

[0082] 1, preparation of phosphate methyl starch gum:

[0083] A. The mass percent composition of the phosphate methyl starch gel is consistent with Example 1;

[0084] b, formulation: The phosphate starch formulation is consistent with Example 1;

[0085] 2, the preparation of inorganic phase change storage particles:

[0086] a, the composition and mass percentage of ingredients in each embodiment are shown in Table 2;

[0087] B, mix, granulation, and coating: consistent with Example 1;

[0088] Table 2: Components and mass percentages in each embodiment:

[0089]

[0090]

[0091] C, envelope:

[0092] Its envelope process is consistent with Example 1;

[0093] 3, floor heating mortar (or: inorganic phase change storage particle floor heatin...

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Abstract

An inorganic phase change energy storage particle, floor heating mortar and a preparation method thereof, wherein the mass percentage composition of the inorganic phase change energy storage particle includes: 20%-50% inorganic phase change material, 10%-25% water, 0.1%-1.5% Phosphated starch glue, 0.1%-1.5% water-absorbing resin, 10%-35% gypsum and 15%-35% cement; prepared phosphated starch glue, ingredients, mixing, granulation and coating, and coating The ground heating mortar is composed of 15% to 35% cement, 10% to 25% sand, 20% to 50% inorganic phase change energy storage particles, and 20% to 30% water; it is prepared by batching and mixing. The invention has wide sources of raw materials, good chemical stability, low phase transition temperature, no leakage, good energy storage effect of energy storage particles, high stability, high strength of floor heating mortar, can effectively adjust indoor temperature, good energy saving effect, and can be widely used It is widely used in residential buildings, schools, hospitals and other buildings.

Description

Technical field [0001] The present invention belongs to phase change storage particles, floor heating mortar, and preparation thereof, involving an inorganic phase change storage particles, floor heating mortar and preparation thereof. The phase change temperature of the present invention is suitable for the floor-handed mortar, good energy storage performance, no leakage phenomenon after multiple cycles, high strength, good construction performance, can be widely used in residential, school, hospital and other buildings . Background technique [0002] With the development of industrial economy, the problem of energy crises and environmental deterioration is increasing, increasing energy efficiency is increasingly concerned, and thermal storage technology is critical to improving energy efficiency. [0003] In numerous energy storage technology, phase change heat (latent heat storage heat) is stored by the latent heat change of the phase change material, which has high storage de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B28/02
CPCC04B28/02C04B40/0039C04B2103/0071C04B2111/00017C04B2111/00482C04B22/16C04B24/38C04B22/062C04B22/147C04B22/143C04B7/00C04B24/24C04B14/06
Inventor 邓跃全董发勤李光华郭李琴李霞胡豪王姚
Owner SOUTHWEAT UNIV OF SCI & TECH
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