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Sealant primer and its preparation method and application

A technology of primer liquid and sealant, which is applied in the direction of surface pretreatment bonding methods, coatings, adhesives, etc., can solve problems such as sealant bonding failure, damage to the interface layer, and unstable quality of prefabricated buildings. Improve bonding performance, facilitate construction, solve environmental pollution and endanger the health of construction workers

Active Publication Date: 2020-06-23
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Sealant is often used in the bonding of prefabricated buildings, but because the prefabricated components used in prefabricated buildings - PC boards are a porous building material made of cement concrete, if soaked in water for a period of time, the water will It will slowly penetrate into the bonding surface of the sealant and destroy its interface layer, which will lead to the failure of the sealant bond and cause unstable quality of the prefabricated building

Method used

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  • Sealant primer and its preparation method and application
  • Sealant primer and its preparation method and application
  • Sealant primer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment provides a sealant primer and a preparation method thereof, the steps are as follows:

[0044] Step (1) weigh each raw material by the following parts by weight

[0045] 15 parts of polyurethane emulsion Alberdingk U 3251, 34 parts of silicone acrylic emulsion BC-3266, 5 parts of EVA emulsion Celvolit TM CP 143, 10 parts of silane coupling agent KH-460, 2.4 parts of dodecyl alcohol ester, 0.8 parts of BYK024 and 39 parts water.

[0046] Step (2) prepares polymer emulsion

[0047] Mix and stir the above polyurethane emulsion Alberdingk U 3251, silicone acrylic emulsion BC-3266 and EVA emulsion Celvolit TMCP 143 to obtain the product.

[0048] Step (3) prepare sealant primer

[0049] Add 27 parts of polymer emulsion, 0.3 parts of BYK024, 15 parts of deionized water, and 2.4 parts of dodecyl alcohol ester into the container. After stirring for 30 minutes, add 0.3 parts of BYK024 while stirring and control the speed at 1000r / min; then add 10 parts of Sil...

Embodiment 2

[0051] This embodiment provides a sealant primer and a preparation method thereof, the steps are as follows:

[0052] Step (1) weigh each raw material by the following parts by weight

[0053] 20 parts of polyurethane emulsion Alberdingk U 3251, 40 parts of silicone acrylic emulsion BLJ-KD96, 8 parts of EVA emulsion Celvolit TM CP 143, 6 parts of Momentive A-186, 2.4 parts of propylene glycol butyl ether, 0.8 parts of BYK024 and 39 parts of water.

[0054] Step (2) prepares polymer emulsion

[0055] Mix and stir the above polyurethane emulsion Alberdingk U 3251, silicone acrylic emulsion BLJ-KD96 and EVA emulsion CelvolitTM CP 143 to obtain the product.

[0056] Step (3) prepare sealant primer

[0057] Add 34 parts of polymer emulsion, 0.3 parts of BYK024, 15 parts of deionized water, 2.4 parts of propylene glycol butyl ether into the container. After stirring for 30 minutes, add 0.3 parts of BYK024 while stirring and control the speed at 1000r / min; then add 8 parts of Momen...

Embodiment 3

[0059] This embodiment provides a sealant primer and a preparation method thereof, the steps are as follows:

[0060] Step (1) weigh each raw material by the following parts by weight

[0061]10 parts of polyurethane emulsion Alberdingk U 3251, 30 parts of silicone acrylic emulsion JA-2030, 5 parts of EVA emulsion Celvolit TM CP 143, 15 parts of Dow Corning Z-6040, 2.4 parts of propylene glycol methyl ether acetate, 0.8 parts of TeGo810 and 39 parts of water.

[0062] Step (2) prepares polymer emulsion

[0063] Mix and stir the above polyurethane emulsion Alberdingk U 3251, silicone acrylic emulsion JA-2030 and EVA emulsion Celvolit TMCP 143 to obtain the product.

[0064] Step (3) prepare sealant primer

[0065] Add 23 parts of polymer emulsion, 0.3 parts of TeGo810, 15 parts of deionized water, and 2.4 parts of propylene glycol methyl ether acetate into the container. After stirring for 30 minutes, add 0.3 parts of TeGo810 while stirring and control the speed at 1000r / min;...

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Abstract

The invention relates to sealing rubber sole coating liquid. The sealing rubber sole coating liquid comprises the following raw materials according to the parts by weight: 30-80 parts of polymer emulsion, 5-20 parts of a silane coupling agent, 1-10 parts of a coalescing agent, 0.1-5 parts of a defoamer, and 30-60 parts of water, wherein the polymer emulsion is prepared by mixing polyurethane emulsion, silicon acrylic emulsion, and EVA emulsion, the solid content of the polyurethane emulsion is 50-70%, the solid content of the silicon acrylic emulsion is 35-60%, and the solid content of the EVAemulsion is 60-80%. The above sealing rubber sole coating liquid is capable of increasing the cohesiveness of sealing rubber and a PC base material.

Description

Technical field [0001] The invention relates to the field of prefabricated buildings, and in particular to a sealant primer liquid and its preparation method and application. Background technique [0002] Prefabricated construction refers to transporting prefabricated components produced in factories to the construction site, and performing assembly construction on the prefabricated components at the construction site. It has the advantages of short construction period, high safety, energy conservation and environmental protection, cost saving, stable construction quality, and low labor costs. , with the strong support of national policies for prefabricated buildings, prefabricated buildings have shown rapid development in recent years. [0003] Sealant is often used for bonding in prefabricated buildings. However, since the prefabricated components used in prefabricated buildings, PC boards, are porous building materials made of cement concrete, if soaked in water for a per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D175/04C09D123/08C09D5/16C09D7/63C09D7/20C09J5/02
CPCC08L2205/03C09D5/1687C09D7/20C09D123/0853C09D143/04C09D175/04C09J5/02C09J2400/10C08L75/04C08L23/0853C08K5/54C08K5/10C08L43/04
Inventor 陈洋庆陈建军杨苏邯高敏华龙飞
Owner GUANGZHOU BAIYUN CHEM IND