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Heat-preservation moisture-permeable rendering coat mortar for building and preparation method thereof

A technology for building thermal insulation and plastering glue, which is applied in climate sustainability, sustainable waste treatment, solid waste management, etc. Small difference, high wet flow density, and the effect of reducing cracking

Active Publication Date: 2021-12-07
苏州市姑苏新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondly, the existing plastering mortar has poor thermal insulation performance, high thermal conductivity, and a large difference in thermal conductivity with the thermal insulation board, which is basically 25 to 30 times, resulting in heat accumulation and delayed heat dissipation, affecting the stability and cracking of the system

Method used

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  • Heat-preservation moisture-permeable rendering coat mortar for building and preparation method thereof
  • Heat-preservation moisture-permeable rendering coat mortar for building and preparation method thereof
  • Heat-preservation moisture-permeable rendering coat mortar for building and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A building thermal insulation and moisture-permeable plaster mortar, the preparation method of which comprises the following steps:

[0041](1) 40 parts (parts by weight, the same below) P.O42.5# ordinary Portland cement, 51.43 parts of quartz sand, 3.5 parts of polystyrene foam particles, 0.25 parts of wood fiber, 0.11 part of polyvinyl alcohol fiber , 2.2 parts of ethylene-vinyl acetate latex powder, 0.08 part of octyltriethoxysilane powder, and 0.23 part of hydroxymethylpropyl cellulose are added to the stirring equipment together, and stirred at a slow speed (50~60r / min) for 1.8h ;

[0042] (2) Add 2.2 parts of paraffin wax powder into the above-mentioned reactants, continue stirring at a slow speed for 0.5 h, and obtain the building thermal insulation and moisture-permeable plastering mortar of the present invention.

Embodiment 2

[0044] A building thermal insulation and moisture-permeable plaster mortar, the preparation method of which comprises the following steps:

[0045] (1) 35.52 parts of P.O42.5# ordinary Portland cement, 56 parts of quartz sand, 1.6 parts of polystyrene foam particles, 2.1 parts of hollow glass beads, 0.31 parts of wood fiber, 0.14 parts of polyvinyl alcohol fiber, Add 1.5 parts of ethylene-vinyl acetate latex powder, 0.1 part of octyltriethoxysilane powder, and 0.23 parts of hydroxyethyl cellulose into the stirring equipment, and stir at a slow speed (50~60r / min) for 2 hours;

[0046] (2) Add 2.5 parts of paraffin wax powder into the above-mentioned reactant, continue stirring at a slow speed for 0.5 h, and obtain the building thermal insulation and moisture-permeable plastering mortar of the present invention.

Embodiment 3

[0048] A building thermal insulation and moisture-permeable plaster mortar, the preparation method of which comprises the following steps:

[0049] (1) 31.63 parts of P.O52.5# ordinary Portland cement, 58 parts of quartz sand, 2.2 parts of expanded perlite, 2.8 parts of hollow glass microspheres, 0.35 parts of wood fiber, 0.1 part of polyvinyl alcohol fiber, 1.8 parts Add ethylene-vinyl acetate latex powder, 0.12 parts of octyltriethoxysilane powder, and 0.2 parts of hydroxyethyl cellulose into the stirring equipment, and stir at a slow speed (50-60 r / min) for 2 hours;

[0050] (2) Add 2.8 parts of paraffin wax powder into the above-mentioned reactant, continue stirring at a slow speed for 0.5 h, and obtain the building thermal insulation and moisture-permeable plastering mortar of the present invention.

[0051] The plaster mortar that embodiment 1-3 makes is carried out performance test:

[0052] The general physical properties are tested according to the standard GB / T 3059...

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Abstract

The invention relates to the technical field of building materials, and discloses heat-preservation moisture-permeable rendering coat mortar for a building and a preparation method thereof. The rendering coat mortar comprises the following components by weight: 30-45% of cement, 40-60% of quartz sand, 2-5% of a thermal insulation material, 1-3% of a phase change material, 0.2-0.4% of wood fibers, 0.1-0.2% of polyvinyl alcohol fibers, 1.5-2.5% of latex powder, 0.05-0.15% of a waterproof agent and 0.15-0.25% of a water-retaining agent. The moisture permeability of the rendering coat mortar is improved through the components such as the wood fibers and the polyvinyl alcohol fibers, and the moisture permeability is larger than 0.85 g / m<2>.h; and secondly, by adding the thermal insulation material, the heat conductivity coefficient of the rendering coat mortar is reduced, and the cracking of the rendering coat mortar caused by rapid temperature rise and rapid temperature drop is avoided by slowly storing or releasing heat through the phase change material.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a building thermal insulation and moisture-permeable plaster mortar and a preparation method thereof. Background technique [0002] Building energy conservation has become the theme of current development, and external wall insulation is one of the important energy-saving measures. Its basic structure is composed of walls, adhesive layers, insulation layers, plastering mortar, etc. from the inside to the outside. The insulation layer generally adopts Polystyrene board, rock wool board, foamed cement board or foamed glass board, plastering mortar is the protective layer on the outside of the insulation board, which plays a role in leveling, preventing system cracking, preventing rainwater penetration, etc., and plays an important role in the function of the insulation system. to a vital role. However, with the prolongation of time, problems with the external thermal in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/26C04B16/06C04B24/36C04B14/18C04B14/24C04B16/08
CPCC04B28/04C04B18/26C04B16/0641C04B24/36C04B14/185C04B14/24C04B16/08C04B2201/32C04B14/06C04B24/2623C04B24/42C04B24/383Y02W30/91
Inventor 赵长才郭镜铭陈岩
Owner 苏州市姑苏新型建材有限公司
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