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Low-temperature underwater anchoring adhesive and preparation method thereof

A planting glue and low-temperature technology, applied in the direction of adhesives, epoxy resin glue, adhesive types, etc., can solve the problems of poor wetting effect of adhesives, slow underwater curing speed, and decline in colloid performance, and achieve good water resistance and water repellency. Water-based, enhanced bonding effect, fast curing effect

Inactive Publication Date: 2017-07-07
CARBON COMPOSITESTIANJIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of the underwater curing speed of the rebar glue in the low-temperature underwater rebar planting operation, the present invention provides a low-temperature underwater rebar glue and its preparation method to solve the problem of the existing low-temperature underwater rebar planting glue used in China. Slow, serious decline in colloid performance, poor wetting effect of adhesive, weak bonding ability, etc.

Method used

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  • Low-temperature underwater anchoring adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of component A: 100 parts by weight of bisphenol A type epoxy resin, 3 parts of reactive diluent, 15 parts of toughening agent, 2 parts of silane coupling agent, and 3 parts of thixotropic agent are mixed Stir well, then add 180 parts of filler and mix well

[0031] Preparation of component B: Mix and stir 94 parts by weight of cardanol-modified phenalkamine curing agent, 6 parts of accelerator, 2 parts of silane coupling agent, and 2 parts of thixotropic agent, and then add 200 parts Stir the filler evenly

[0032] Mix components A and B according to the weight ratio of 2:1 and stir evenly to prepare the low-temperature underwater rebar-planting glue.

Embodiment 2

[0034] Preparation of component A: 100 parts by weight of bisphenol A type epoxy resin, 2 parts of reactive diluent, 16 parts of toughening agent, 3 parts of silane coupling agent, and 2 parts of thixotropic agent are mixed Stir well, then add 200 parts of filler and mix well

[0035] Preparation of component B: Mix and stir 94 parts by weight of cardanol-modified phenalkamine curing agent, 6 parts of accelerator, 2 parts of silane coupling agent, and 3 parts of thixotropic agent, and then add 200 parts Stir the filler evenly

[0036] Mix components A and B according to the weight ratio of 2:1 and stir evenly to prepare the low-temperature underwater rebar-planting glue.

Embodiment 3

[0038] Preparation of component A: 100 parts by weight of bisphenol A type epoxy resin, 3 parts of reactive diluent, 18 parts of toughening agent, 2 parts of silane coupling agent, and 3 parts of thixotropic agent are mixed Stir well, then add 200 parts of filler and mix well

[0039] Preparation of component B: Mix and stir 94 parts by weight of cardanol-modified phenalkamine curing agent, 6 parts of accelerator, 3 parts of silane coupling agent, and 3 parts of thixotropic agent, and then add 220 parts Stir the filler evenly

[0040] Mix components A and B according to the weight ratio of 2:1 and stir evenly to prepare the low-temperature underwater rebar-planting glue.

[0041] The performance test of the rebar glue prepared by the three embodiments of the present invention is carried out according to the relevant requirements of GB 50728-2011, and the test data are shown in Attached Table 1

[0042] Table I

[0043]

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Abstract

The invention provides a low-temperature underwater anchoring adhesive and a preparation method thereof. The low-temperature underwater anchoring adhesive is prepared from a bi-component of A and B, and is prepared by mixing A and B at a mass ratio of 2:1, wherein A comprises bisphenol A-type epoxy resin, reactive diluents, flexibilizers, silane coupling agents, thixotropic agents and stuffing; B comprises an anacardol-modified phenolic amine hardener, accelerators, silane coupling agents, thixotropic agents and stuffing. The low-temperature underwater anchoring adhesive owns excellent water tolerance, and can realize complete underwater solidification. Through specific formula design, the anchoring adhesive is capable of soaking and adhering to a structural layer. In an environment of 0 DEG C or so, the anchoring adhesive still owns excellent reactivity, and rapidly conducts low-temperature solidification. Through combination of excellent hydrophobic property with good soaking property and rapid solidification, the anchoring adhesive can conduct implantation and anchoring well in low-temperature water, and completely solve the problem that implantation and anchoring can not be conducted in low-temperature water in the construction industry.

Description

technical field [0001] The invention relates to the field of building structure adhesives, in particular to a low-temperature underwater rebar-planting adhesive and a preparation method thereof. Background technique [0002] In building construction, due to some irresistible factors, it is often necessary to plant bars and anchor the structural layer. Rebar planting usually refers to the use of high-strength chemical adhesives to make the steel bars or anchor rods and the structural layer produce super anchorage bonding force, so as to achieve the pre-embedded effect. At present, planting glue is widely used in anchor rods, and the reinforcement of steel bars is anchored after planting, and the strength of planting glue often determines the bonding strength of steel bars or anchors and structural layers. [0003] The construction of underwater structures accounts for a large proportion of building construction. At present, most of the domestic planting glue products are onl...

Claims

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Application Information

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IPC IPC(8): C09J163/00C08G59/62
CPCC08G59/623C09J163/00
Inventor 周洪芝李新雷许小海
Owner CARBON COMPOSITESTIANJIN CO LTD
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