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Multilayer phase-change energy-saving wallboard and preparation method thereof

A wallboard and phase change technology, applied in the field of building wallboard, can solve the problems of complex manufacturing process, insufficient energy saving and environmental protection, etc., and achieve the effect of high density, low cost and high thermal conductivity

Pending Publication Date: 2021-09-07
JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional energy-saving wall panels are not energy-saving and environmentally friendly, and the production process is relatively complicated. To solve these problems, here we propose a multi-layer phase-change energy-saving wall panel and its preparation method

Method used

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  • Multilayer phase-change energy-saving wallboard and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The proportion of chemical mixture is set to 15%, the proportion of phase change material is set to 8%, the proportion of mixed powder is set to 42%, the proportion of additives is set to 10%, and the proportion of organic solvent is set to 25%.

[0036] Silica fume powder, fly ash, zeolite powder, anhydrous gypsum, bentonite, and calcite powder are mixed first, and then the phase change material is made of high-density polyethylene, ethylene-vinyl acetate copolymer, organic kaolinite nano-compound, and paraffin. Raw materials, nanocomposite phase change materials prepared by twin-screw extrusion process, the main screw is 90mm in diameter, the length-to-diameter ratio is 40:1, the secondary screw is 32mm in diameter, and the length-to-diameter ratio is 18:1. After nitriding treatment, a mixture of formamide, propanol, styrene, perchlorethylene, and trichlorethylene is added, and the ratio is 1:0.6:1.2:0.4:0.7, and the stirring equipment is used to fully stir. The speed...

Embodiment 2

[0039] The proportion of chemical mixture is set to 15%, the proportion of phase change material is set to 8%, the proportion of mixed powder is set to 42%, the proportion of additives is set to 10%, and the proportion of organic solvent is set to 25%.

[0040] Silica fume powder, fly ash, zeolite powder, anhydrous gypsum, bentonite, and calcite powder are mixed first, and then the phase change material is made of high-density polyethylene, ethylene-vinyl acetate copolymer, organic kaolinite nano-compound, and paraffin. Raw materials, nanocomposite phase change materials prepared by twin-screw extrusion process, the main screw is 90mm in diameter, the length-to-diameter ratio is 40:1, the secondary screw is 32mm in diameter, and the length-to-diameter ratio is 18:1. After nitriding treatment, a mixture of formamide, propanol, styrene, perchlorethylene, and trichlorethylene is added, and the ratio is 1:0.6:1.2:0.4:0.7, and the stirring equipment is used to fully stir. The rotat...

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Abstract

The invention discloses a multilayer phase-change energy-saving wallboard which is prepared from the following components in percentage by weight: mixed powder particles, chemical mixed liquid, phase-change material, additives and an organic solvent, wherein the chemical mixed liquid accounts for 5-15%, the phase-change material accounts for 2-8%, the mixed powder particles account for 25-42%, the additives account for 5-10%, and the organic solvent accounts for 10-25%. The phase-change material is added into the raw materials of the wallboard so that the overall expansion contractibility of the wall body is small, the phenomenon of supercooling or overheating is few, the heat conductivity coefficient is large, the density is large, the specific heat capacity is large, and the wallboard is overall non-toxic, non-corrosive, low in cost and convenient to manufacture.

Description

technical field [0001] The invention relates to the technical field of building wallboards, in particular to a multilayer phase-change energy-saving wallboard and a preparation method thereof. Background technique [0002] With the transformation and upgrading of my country's construction industry, higher requirements have been put forward for the level of building services and indoor comfort, which has brought about the problem of rapid growth of building energy consumption, not only requiring its thermal insulation performance, but also requiring a certain amount of heat storage For heat storage performance, the traditional thermal insulation layer is difficult to meet the performance requirements, and the combination of phase change materials and envelope structures can not only improve the thermal insulation performance of the building, but also improve its thermal storage performance. As a functional material with special properties, phase change materials can absorb or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32C04B24/36
CPCC04B28/32C04B40/0039C04B2103/0071C04B2201/32C04B22/062C04B22/087C04B22/149C04B22/12C04B22/148C04B18/146C04B18/08C04B14/047C04B22/143C04B14/104C04B14/28C04B14/042C04B14/102C04B24/085C04B18/12C04B24/124C04B24/026C04B24/00C04B24/005C04B24/2611C04B24/2623C04B24/405C04B24/36
Inventor 田国华缪正坤张丽娟刘朋王国安
Owner JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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