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Phase-change insulating flexible facing material and preparation method thereof

A technology for thermal insulation flexible and decorative materials, which is applied in the field of building thermal insulation and decoration materials, can solve the problems that the thermal insulation effect of coatings is not obvious, the thermal energy cannot be fully utilized, and the production cost of thermal insulation boards is high, so as to broaden the scope of use, simplify the construction process, and improve the decoration. strong effect

Active Publication Date: 2014-12-10
HAIAN INST OF HIGH TECH RES NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, building insulation methods are mostly focused on brushing heat-insulating paint, pasting composite insulation boards, etc. These methods are passive heat insulation, which cannot make full use of heat energy, and the heat insulation effect of the paint is not obvious, and the durability and stain resistance are poor. High cost and complex construction
Phase change microcapsule materials (MicroPCMs), which have emerged in recent years, have been widely used in the fields of daily food transportation and thermal insulation clothing due to their characteristics of automatic temperature control and active energy storage. In the field of construction, they are also tried to be added to construction mortar. In order to obtain the thermal insulation effect, but it has not been really promoted because it will seriously affect the strength of the mortar

Method used

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  • Phase-change insulating flexible facing material and preparation method thereof
  • Phase-change insulating flexible facing material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Example 1: Kaolin 40%, MicroPCMs 6%, self-crosslinking acrylate emulsion 30%, acrylic acid 3%, additives 2.5%, cetyltrimethylammonium bromide 0.5%, sodium-based organobentonite 4% , water 14% batching by mass parts. Add self-crosslinking acrylate emulsion, water, cetyltrimethylammonium bromide, additives, and acrylic acid to the disperser and mix at a high speed of 2000r / min, then slowly add sodium-based bentonite, when the bentonite is fully dispersed , reduce the speed to 800r / min, slowly add MicroPCMs, stir for 20min; finally slowly add kaolin. Scrape the obtained mixture on the mold in batches, with a thickness of 4mm, and then put it into a 50°C oven for curing for 4h. The material is peeled off from the mold, baked in a 100°C oven for 1 hour, taken out, trimmed and polished to obtain a phase-change thermal insulation flexible facing material.

Embodiment 2

[0034] Example 2: Attapulgite 30%, MicroPCMs 5%, self-crosslinking acrylate emulsion 40%, acrylic acid 2%, additives 2.5%, cetyltrimethylammonium bromide 0.5%, sodium-based organobentonite 3 %, water 17% batching by mass parts. Add self-crosslinking acrylate emulsion, water, cetyltrimethylammonium bromide, additives, and acrylic acid to the disperser and mix at a high speed of 2000r / min, then slowly add sodium-based bentonite, when the bentonite is fully dispersed , reduce the speed to 800r / min, slowly add MicroPCMs, stir for 20min; finally slowly add attapulgite. Scrape the obtained mixture on the mold in batches with a thickness of 5mm, and then put it into an oven at 60°C for 4 hours for curing. The material is peeled off from the mold, baked in an oven at 110°C for 1 hour, taken out, trimmed and polished to obtain a phase-change thermal insulation flexible facing material.

Embodiment 3

[0035] Example 3: Montmorillonite 40%, MicroPCMs 9%, self-crosslinking acrylate emulsion 25%, methacrylic acid 2%, additives 2.5%, tetradecyltrimethylammonium bromide 0.5%, lithium-based Organic bentonite 3%, water 18% are batched by mass parts. Add self-crosslinking acrylate emulsion, water, tetradecyltrimethylammonium bromide, additives, and methacrylic acid to the disperser and mix at a high speed of 2000r / min, then slowly add lithium-based bentonite, when the bentonite is fully After dispersion, reduce the speed to 800r / min, slowly add MicroPCMs, stir for 20min; finally slowly add montmorillonite. Scrape the obtained mixture on the mold in batches with a thickness of 3mm, and then put it into an oven at 70°C for 3 hours for curing. The material is peeled off from the mold, baked in an oven at 110°C for 2 hours, taken out, trimmed and polished to obtain a phase-change thermal insulation flexible facing material.

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Abstract

The invention discloses a phase-change insulating flexible facing material and a preparation method thereof. A specific embodiment is as follows: the phase-change insulating flexible facing material is prepared by the preparation method comprising the following steps: coating mud powder, phase change microcapsules, an adhesive and a cross-linking agent which serve as main raw materials on a template, and baking and molding under gradient temperature, wherein the raw materials include the following components in parts by mass: 30-50% of mud powder, 5-10% of phase change microcapsules, 15-30% of adhesive, 3-6% of organic bentonite, 0.5-1% of emulsifier, 1-5% of auxiliaries, 1-5% of cross-linking agent and 10-20% of water. Compared to an existing flexible facing material, the phase-change insulating flexible facing material disclosed by the invention has the following advantages that on the premise of preventing advantages of an existing flexible high polymer facing material from losing, functions of insulating and decorating are integrated, a construction process is simplified, an application scope of the material is widened and a broad market prospect is guaranteed; the facing material disclosed by the invention does not require high temperature sintering and is beneficial for energy conservation and emission reduction; in addition, the material, in production and use, is free from release of toxic gas, and is harmless to environment and human health.

Description

technical field [0001] The invention relates to the field of building thermal insulation decoration materials, in particular to a phase-change thermal insulation flexible decorative material and a preparation method thereof. Background technique [0002] With the acceleration of urban development, there are more and more high-rise buildings, and with the change of design concept, the shape of the building is changing with each passing day and becoming more unique. [0003] Due to their own factors such as large proportion, non-deformability and poor air permeability, traditional exterior wall bricks have become increasingly unable to meet the requirements of modern building exterior wall bricks. Although the exterior wall paint has rich colors and strong decorative properties, it is difficult to meet the decoration requirements for a single function and durability. The flexible facing bricks (soft porcelain) that emerged at the historic moment have already emerged among the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/18C04B24/04C04B24/08
Inventor 陆洪彬唐伟王金鑫张秋香高扬之陆玉孟祥康
Owner HAIAN INST OF HIGH TECH RES NANJING UNIV
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