Heat insulating mortar powder and its prepn process

A technology of thermal insulation mortar and dry powder mortar, which is applied in the field of building materials and its preparation, can solve the problems of poor workability, low compressive strength, and low bonding strength of thermal insulation mortar, and achieve improved construction performance, enhanced anti-sliding ability, The effect of reducing rigidity

Inactive Publication Date: 2005-09-28
爱福家居(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the surface of EPS is hydrophobic and incompatible with inorganic binders, this kind of thermal insulation mortar has poor workability and low bonding strength, so it is not easy to construct.
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Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: The components and proportions (% by weight) contained in the thermal insulation dry powder mortar are: 60 binders, 5 modified polystyrene foam particles, 18 modified expanded perlite, 15 binder modifiers, and 2 fibers.

[0026] Wherein: modified polystyrene foam particle is by the component that contains and proportioning (weight %): polystyrene foam particle 5, polystyrene foam modifying agent 15, fly ash 80; Described polystyrene foam The modifier is polyvinyl formal (it can also be composed of at least one of polyvinyl alcohol, VAE latex powder, CMC, HPMC, HEC, MC.);

[0027] The components and proportioning (% by weight) contained in the modified expanded perlite are: expanded perlite 75, expanded perlite modifier 20, sodium hydroxide 5; the expanded perlite modifier is alkyl dimethyl (2-Hydroxy-3-chloropropyl) ammonium chloride, the number of carbon atoms in the alkyl group is 8.

[0028] The components and proportions (% by weight) contained in the ce...

Embodiment 2

[0040] Example 2: The components and proportions (% by weight) contained in the thermal insulation dry powder mortar are: 90 cementing materials, 3 modified polystyrene foam particles, 2 modified expanded perlite, 4 cementing material modifiers, and 1 fiber.

[0041] Wherein: modified polystyrene foam particle is by contained component and proportioning (weight %): polystyrene foam particle 35, polystyrene foam modifier 1, fly ash 64; Said polystyrene foam The modifier is made by mixing polyvinyl alcohol and VAE latex powder (it can also be composed of at least one of polyvinyl alcohol, VAE latex powder, CMC, HPMC HEC, MC.);

[0042] The components and proportioning (% by weight) contained in the modified expanded perlite are: expanded perlite 95, expanded perlite modifier 3, sodium hydroxide 2; the expanded perlite modifier is alkyl dimethyl (2-Hydroxy-3-chloropropyl)ammonium chloride, the number of carbon atoms in the alkyl group is 18.

[0043] The components and proportio...

Embodiment 3

[0051] Example 3: The components and proportions (% by weight) contained in the thermal insulation dry powder mortar are: cementing material 80, modified polystyrene foam particles 9.8, modified expanded perlite 10, cementing material modifier, fiber 0.2.

[0052] Wherein: modified polystyrene foam particle is by contained component and proportioning (weight %): polystyrene foam particle 20, polystyrene foam modifying agent 8, fly ash 72; Described polystyrene foam The modifier is mixed with polyvinyl alcohol, VAE latex powder, and CMC (it can also be composed of at least one of polyvinyl alcohol, VAE latex powder, CMC, HPMC HECMC.);

[0053] The components and proportioning (% by weight) contained in the modified expanded perlite are: expanded perlite 85, expanded perlite modifier 10, sodium hydroxide 5; the expanded perlite modifier is alkyl dimethyl (2-Hydroxy-3-chloropropyl) ammonium chloride, the number of carbon atoms in the alkyl group is 9.

[0054] The components and...

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PUM

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Abstract

The heat insulating mortar powder contains cementing material, foamed modified polystyrene grain, modified expanded pearlite, cementing material modifier and fiber. The foamed modified polystyrene grain contains foamed polystyrene grain, foamed polystyrene modifier and flyash; the modified expanded pearlite contains expanded pearlite, expanded pearlite modifier and sodium hydroxide; and the cementing material modifier contains polymer adhesive, air entraining and water reducing agent and flyash activator. The preparation process includes preparing foamed modified polystyrene grain, preparing modified expanded pearlite, preparing cementing material modifier, and mixing all the materials in certain proportion. The present invention has the advantages of small heat conducting coefficient, high compression strength, good construction performance, high adhering strength, etc.

Description

1. Technical field [0001] The present invention relates to a kind of building material and its preparation method, especially a kind of thermal insulation mortar dry powder and its preparation method 2. Background technology [0002] With the improvement of building thermal insulation performance requirements, various thermal insulation materials are used, such as thermal insulation mortar. At present, there are many kinds of thermal insulation mortar on the market, most of which use expanded perlite as thermal insulation material, and cement, gypsum, etc. Expanded perlite has a high water absorption rate, and its weight water absorption rate can reach 200-900%. During the setting and hardening process, the mortar will shrink due to water loss. The stress caused by this shrinkage is the main reason for the hollowing, cracking, cracking and falling off of the mortar. There are also some thermal insulation mortars that use polystyrene foam particles (EPS) as thermal insulati...

Claims

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Application Information

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IPC IPC(8): C04B14/18C04B14/44C04B16/00C04B22/00C04B24/00C04B26/00C04B28/02
Inventor 张建荣龚雁毛明富
Owner 爱福家居(江苏)有限公司
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