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A kind of preparation method of normal temperature solidified stone material dry-hanging glue

A dry-hanging and room-temperature curing technology for stone materials, applied in the field of dry-hanging glue, can solve problems such as easy separation, slow glue curing speed, and low shear strength, so as to improve work efficiency and service life, accelerate glue curing speed, and improve surface quality The effect of shortening the drying time

Active Publication Date: 2021-10-29
BENGBU SAIER TIMES IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem that often occurs during the use of dry-hanging glue is that the curing speed of the glue is slow, the surface-drying time is too long, and the shear strength after curing is not high; at the same time, the organic raw materials in the dry-hanging glue are easily compatible with the inorganic raw materials. prone to separation

Method used

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  • A kind of preparation method of normal temperature solidified stone material dry-hanging glue

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Experimental program
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Effect test

Embodiment 1

[0022] (1) The preparation method of component A: add 40kg modified epoxy resin, 1kg epoxy diluent, 4kg fumed silica to the planetary mixer, stir for 30min, add 4kg barite powder, 1kg nano-calcium carbonate, continue stirring 1h, after shoveling, close the cylinder head and turn on the vacuum pump, vacuumize to -0.08MPa, after stirring for 2h, discharge and pack to obtain component A;

[0023] (2) Preparation method of component B: add 6kg of modified fatty amine curing agent, 1kg of curing accelerator DMP-30, and 1kg of fumed silica into a planetary mixer, stir for 10 minutes, add 2kg of dispersing aid, and continue stirring for 50 minutes , close the cylinder cover after shoveling the edge, turn on the vacuum pump, vacuumize to -0.08MPa, stir for 1 hour, and then discharge and pack to obtain component B.

[0024] Preparation of modified epoxy resin: Add 12kg of montmorillonite to deionized water, add 30kg of acetic acid solution with a mass fraction of 15%, stir at 80°C for ...

Embodiment 2

[0027] (1) The preparation method of component A: add 40kg modified epoxy resin, 1kg epoxy diluent, 4kg fumed silica to the planetary mixer, stir for 30min, add 4kg barite powder, 1kg nano-calcium carbonate, continue stirring 1h, after shoveling, close the cylinder head and turn on the vacuum pump, vacuumize to -0.08MPa, after stirring for 2h, discharge and pack to obtain component A;

[0028] (2) The preparation method of component B: Add 6kg modified fatty amine curing agent, 1kg curing accelerator DMP-30, 2kg fumed silica into the planetary mixer, stir for 10min, add 4kg of dispersing aid, and continue stirring for 50min , close the cylinder cover after shoveling the edge, turn on the vacuum pump, vacuumize to -0.08MPa, stir for 1 hour, and then discharge and pack to obtain component B.

[0029] Preparation of modified epoxy resin: Add 12kg of montmorillonite to deionized water, add 30kg of acetic acid solution with a mass fraction of 15%, stir at 80°C for 20min, then add 3...

Embodiment 3

[0047] Based on Example 1, a comparative example 1 without adding natural vegetable oil, a comparative example 2 without adding a silane coupling agent, and a comparative example 3 with polyethylene glycol as a dispersing aid are set.

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Abstract

The invention discloses a preparation method of dry-hanging glue solidified at normal temperature, and relates to the technical field of dry-hanging glue. In the present invention, after mixing components A and B according to the mass ratio of 1:1, the surface drying time under standard conditions (temperature 23±2°C, relative humidity 50±5%) is faster than that of conventional epoxy dry-hanging adhesives. Significant shortening, the curing speed of the glue is obviously accelerated, and the aging resistance and weather resistance of the dry-hanging glue after curing are enhanced; the dispersion aid can evenly disperse the raw materials of each component, which improves the working efficiency and service life of the dry-hanging glue. No oil will come out after A and B components are placed at ℃ for 90 days.

Description

Technical field: [0001] The invention relates to the technical field of dry-hanging glue, in particular to a preparation method of normal-temperature-cured stone dry-hanging glue. Background technique: [0002] In recent years, stone curtain wall has shown a rapid development trend in my country's construction field. Stone dry-hanging glue, which plays an important bonding role in the curtain wall structure, is widely used in curtain wall construction. As one of the three general-purpose thermosetting resins, epoxy resin has the advantages of high chemical resistance, good aging resistance and high mechanical strength. Epoxy dry-hanging glue has therefore become an important adhesive for bonding stone curtain wall structures. The mandatory building materials industry standard JC 887-2001 "Epoxy Adhesives for Dry-hanging Stone Curtain Walls" stipulates the performance requirements of epoxy dry-hanging adhesives for stone curtain walls. Considering construction conditions a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J11/04
Inventor 申新周喜桓赵杰
Owner BENGBU SAIER TIMES IND & TRADE CO LTD