Low-density waterproof elastic two-component sealant

A sealant, low-density technology, applied in the direction of adhesives, epoxy resin glue, adhesive types, etc., can solve problems such as the bonding of concrete pipe fittings, and achieve outstanding water resistance, good water resistance and good thixotropy. Effect

Pending Publication Date: 2021-02-09
DALIAN KAIHUA NEW TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the bonding problem between concrete pipe fittings, the invention provides a low-density waterproof elastic two-component sealant

Method used

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  • Low-density waterproof elastic two-component sealant
  • Low-density waterproof elastic two-component sealant
  • Low-density waterproof elastic two-component sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Put 600 grams of BE-188 liquid epoxy resin, 100 grams of dioctyl adipate, and 15 grams of KAT225 chelated tin catalyst into a 2L double planetary stirring tank, mix for 5 minutes until uniform, and then add 50 grams of 150 silicon gas , after high-speed dispersion until uniform, then add 170 grams of nano-calcium carbonate, 15 grams of titanium dioxide, 50 grams of 4038H type glass beads, after mixing evenly, the discharge is the A1 component of the sealant.

[0037] Add 800 grams of S327 silane-modified polyether polymer, 100 grams of dioctyl adipate, 25 grams of K-54, and 10 grams of aminoethylaminopropyltrimethoxysilane into a 2L double planetary stirred tank In the process, mix for 10 minutes until uniform, add 40 grams of 150 gas silicate, disperse at high speed until uniform, then add 25 grams of 4038H glass microspheres, 1 gram of black colorant, mix uniformly and vacuum for 10 minutes, and the material is B1 group point.

Embodiment 2

[0039] Put 600 grams of BE-188 liquid epoxy resin, 100 grams of dioctyl adipate, and 15 grams of KAT225 chelated tin catalyst into a 2L double planetary stirring tank, mix for 5 minutes until uniform, add 50 grams of 150 gas silicon, After dispersing at high speed until uniform, add 170 grams of nano-calcium carbonate, 15 grams of titanium dioxide, and 50 grams of 4038H glass microspheres. After mixing evenly, the output is the A2 component of the sealant.

[0040] Add 800 grams of SAT350 silane-modified polyether polymer, 100 grams of dioctyl adipate, 25 grams of K-54, and 10 grams of aminoethylaminopropyltrimethoxysilane into a 2L double planetary stirring tank In the process, mix for 10 minutes until uniform, add 40 grams of 150 fumed silicon, disperse at high speed until uniform, then add 25 grams of 4038H empty glass beads, 1 gram of black colorant, mix uniformly and vacuum for 10 minutes, and the material is B2 components.

Embodiment 3

[0042] Put 600 grams of BE-188 liquid epoxy resin, 100 grams of dioctyl adipate, and 15 grams of KAT225 chelated tin catalyst into a 2L double planetary stirring tank, mix for 5 minutes until uniform, add 50 grams of 150 gas silicon, After dispersing at high speed until uniform, add 170 grams of nano-calcium carbonate, 15 grams of titanium dioxide, and 50 grams of 4038H type glass beads. After mixing evenly, the output is the A3 component of the sealant.

[0043] Add 800 grams of S327 silane-modified polyether polymer, 100 grams of dioctyl adipate, 25 grams of K-54, and 10 grams of aminoethylaminopropylmethyldimethoxysilane into a 2L In a double planetary stirring tank, mix for 10 minutes until uniform, add 40 grams of 150 gas silicon, and disperse at a high speed until uniform, then add 25 grams of 4038H glass microspheres, 1 gram of black colorant, mix uniformly for 10 minutes in a vacuum, and then discharge. It is the B3 component.

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Abstract

The invention discloses a low-density waterproof elastic two-component sealant. A component A is composed of liquid epoxy resin with excellent bonding strength, a component B is composed of silane modified polyether with excellent elongation ability, and the ratio of the component A to the component B is 1: 3. The high strength, adhesive strength and water resistance of the liquid epoxy resin areutilized, the high elongation of the silane modified polyether polymer is matched to form a brand-new elastic sealant, the bridging effect of the silane coupling agent is utilized to improve the strength of the sealant again, the chemical adsorption reaction on the surface of the silane coupling agent is utilized to improve the adhesive strength, the density of the sealant is reduced by utilizingthe low-density filler, so that the sealant can be strongly bonded without primer, and is outstanding in water resistance, moderate in viscosity, high in sagging performance and extremely convenient and easy to construct; and the sealant is high in water-resistant adhesion, low in density and high in thixotropy.

Description

technical field [0001] The invention relates to the technical field of concrete bonding and waterproof sealing. Background technique [0002] In the construction of underground pipe corridors, etc., the connection between concrete pipe fittings needs to be convenient and fast, and the construction time is short. However, the problem of sealing and bonding between concrete pipe fittings has become a key technical problem to be solved, and it is required during the construction process. The sealant must have strong bonding, sealing and water-tightness in low-temperature winter and high-temperature summer. At the same time, it is inevitable that small-scale displacements and abnormal geological movements such as earthquakes will affect the sealing between concrete pipe fittings during the construction process. Glue puts forward higher requirements. [0003] Epoxy resin has strong bonding force and high strength, but it cannot solve the vibration caused by geological movement a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/02C09J11/04C09J11/06C09J11/08
CPCC09J163/00C09J11/04C09J11/06C09J11/08C08K2003/265C08K2201/011
Inventor 王清元王文军
Owner DALIAN KAIHUA NEW TECH ENG
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