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A kind of caulking adhesive for thermal insulation engineering of expanded perlite products and its preparation method

A technology of expanded perlite and its preparation method, which is applied in the field of building material joint fillers, can solve the problems of large influence of environmental temperature changes, cracking, low tensile strength, etc., and achieve the solution of unreliable bonding, easy transportation and storage, and automation high effect

Active Publication Date: 2022-06-28
ZHEJIANG ASKER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the thermal insulation project of expanded perlite products, it is necessary to use caulking adhesives to fill the bonding gap between holes and expanded perlite products, but the existing caulking adhesives have the following deficiencies: 1. Poor mechanical properties, It is easy to age and crack, has low tensile strength, weak cohesion, is greatly affected by environmental temperature changes, and has certain construction difficulties; 2. During the preparation process, it is difficult to put all materials into a conventional stirring device for stirring Ensure that all materials are in sufficient contact, and the stirring performance of the stirring device is also poor, and there will be problems of uneven mixing of materials. If the staff feeds the materials in stages, the labor intensity will be greatly increased and the cost will increase.

Method used

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  • A kind of caulking adhesive for thermal insulation engineering of expanded perlite products and its preparation method
  • A kind of caulking adhesive for thermal insulation engineering of expanded perlite products and its preparation method
  • A kind of caulking adhesive for thermal insulation engineering of expanded perlite products and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Weigh 40 parts of 70-90 mesh expanded perlite particles, 20 parts of sodium silicate powder, 20 parts of wollastonite powder, 2 parts of hydroxypropyl methylcellulose, 0.2 part of epoxy fatty acid methyl ester, 0.2 part of polypropylene fiber, Stirring by a stirring device, collecting the finished product, adding 100 parts of water and stirring to obtain a caulking adhesive slurry.

Embodiment 2

[0059] Weigh 40 parts of 90-120 mesh expanded perlite particles, 25 parts of sodium silicate powder, 25 parts of wollastonite powder, 10 parts of bauxite, 1 part of hydroxypropyl methylcellulose, and 2 parts of redispersible latex powder, 0.3 part of epoxidized soybean oil, 0.1 part of polypropylene fiber, and 0.1 part of acrylic resin are stirred by a stirring device, the finished product is collected, and 100 parts of water are added and stirred to obtain a caulking adhesive slurry.

Embodiment 3

[0061] Weigh 30 parts of 70-90 mesh expanded perlite particles, 10 parts of 90-120 mesh expanded perlite particles, 25 parts of gypsum powder, 15 parts of wollastonite powder, 10 parts of heavy calcium, 2 parts of hydroxyethyl methyl cellulose, 2 parts of redispersible latex powder, 0.3 part of epoxy fatty acid methyl ester, 0.2 part of polypropylene fiber, 0.1 part of boric acid, stirred by a stirring device, collected the finished product, added 100 parts of water and stirred to obtain a caulking adhesive slurry.

[0062] Take the performance test data of the seam-filling adhesives prepared in Examples 1-3 and the commercially available seam-filling adhesives under standard laboratories respectively, and the data are shown in Table 1:

[0063]

[0064] Table 1 is the performance test data of the seam-filling adhesives prepared in Examples 1-3 and the commercially available seam-filling adhesives

[0065] It can be seen from Table 1 that the performances of the seam fillin...

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Abstract

The invention discloses a caulking adhesive for thermal insulation engineering of expanded perlite products and a preparation method thereof. The caulking adhesive comprises 40-50 parts by mass of expanded perlite particles, 15-30 parts of inorganic adhesive, and 20-40 parts of inorganic filler. 1 to 5 parts of additives, 0.2 to 0.5 parts of plasticizers, and 0.2 to 0.3 parts of additives; the preparation method includes the following steps: (a) batching; (b) stirring; (c) discharging; (d) packaging. The caulking adhesive in the present invention has the advantages of high temperature resistance, low temperature resistance, not easy to aging, high tensile strength, strong impermeability, convenient construction, long service life, easy transportation and storage, the preparation method is simple in process, high in automation, and requires no work. Personnel fixed-point and timing feeding reduces labor intensity, materials are mixed fully and evenly, and finished products are of high quality.

Description

technical field [0001] The invention belongs to the technical field of building materials caulking agents, and in particular relates to a caulking adhesive for thermal insulation engineering of expanded perlite products and a preparation method thereof. Background technique [0002] As an inorganic lightweight material, expanded perlite and its products are widely used in thermal insulation projects due to its low bulk density, good thermal insulation effect, low cost and convenient construction and operation. [0003] In the thermal insulation engineering of expanded perlite products, it is a necessary process to use a caulking adhesive to fill the bonding gap between the hole and the expanded perlite product, but the existing caulking adhesive has the following shortcomings: 1. Poor mechanical properties, It is easy to age, crack, has low tensile strength, weak adhesion, is greatly affected by changes in ambient temperature, and has certain construction difficulties; 2. Du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B28/14
CPCC04B28/26C04B28/14C04B2111/00672C04B2111/00637C04B2201/50C04B14/185C04B14/043C04B14/303C04B24/383C04B24/24C04B24/281C04B16/0633C04B14/28C04B22/0013
Inventor 裘益奇雷泉兴裘茂法
Owner ZHEJIANG ASKER TECH
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