Rough stone block reinforcement adhesive and using method thereof

A technology for reinforcing glue and blocks, which is applied in the field of reinforcing stone blocks, can solve the problems of insufficient injection pressure, poor environmental protection performance, easy yellowing, etc., and achieves the effect of easy disassembly and firm fixation.

Active Publication Date: 2012-09-26
HUNAN KOSEN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The resin used for pressure injection is mostly unsaturated polyester resin. This kind of resin uses styrene as active diluent, which has poor environmental performance and is easy to turn yellow; the epoxy resin block reinforcement glue used has poor permeability. Poor, the curing performance under low temperature curing and humid conditions is not ideal, and needs to be improved; when injecting, the actual injection pressure is not enough, and the injection head is inconvenient to disassemble, and it is also necessary to improve

Method used

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  • Rough stone block reinforcement adhesive and using method thereof
  • Rough stone block reinforcement adhesive and using method thereof
  • Rough stone block reinforcement adhesive and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050]1 Add bisphenol A epoxy resin E-51 70.3kg into the reactor, start stirring, then add bisphenol F epoxy resin F-51 12kg, o-cresyl glycidyl ether 12.8kg, bisphenol A 4kg, ultraviolet absorber UV-11 0.3kg, wetting agent CA-165 0.6kg, heat up to 62°C, keep warm for 1.5 hours, cool down to 30°C, stop stirring, filter through a 200-mesh sieve to obtain component A of the reinforcing glue of the present invention.

[0051] 2 Add 31.6kg of methylcyclopentyldiamine to the reaction kettle, start stirring, and then add 25kg of m-xylylenediamine, 16kg of polyetheramine D-400, 17kg of ketimine TZ-550, anti-yellowing additive V85- P 0.4kg, coupling agent KH-550 2kg, curing accelerator N,N-methyldipropylenetriamine 6kg, benzyl alcohol 2kg, heat up to 70°C, keep warm for 2 hours, cool down to 30°C, stop stirring, and Filter through a 200-mesh sieve to obtain component B of the reinforcing glue of the present invention.

[0052] 3 Weigh 10kg of component A, 3kg of component B, mix well,...

Embodiment 2

[0054] When preparing component A of the reinforcing glue, the wetting agent was changed to 0.6 kg of SP-978, and the rest of the conditions were the same as in Example 1.

[0055] When preparing component B of the reinforcing adhesive, the ketimine was changed to TZ-600 17kg, the curing accelerator was changed to DMP-302kg, N,N--methyldipropylenetriamine 4kg, and the anti-yellowing additive was changed to V76- P 0.2kg, V85-P 0.2kg all the other conditions are the same as embodiment 1.

[0056] Weigh 10kg of component A, 2.5kg of component B, mix well, and measure the viscosity of 185mpa.s at 25°C. After the sample is cured at room temperature for 7 days, the compressive shear strength of the stone / stone is 14.5Mpa. According to the use method of the present invention, the stone After the block was reinforced at 10°C for 7 days, the slices were normal, the reinforcement glue had good permeability, the curing was complete, and there was no obvious yellowing.

Embodiment 3

[0058] When preparing component A, the wetting agent was changed to CA-165 0.3kg, SP-978 0.3kg, and the rest were the same as in Example 1.

[0059] When preparing component B, the methylcyclopentadiamine was changed to 32.6kg, the curing accelerator was changed to 5kg of 399-1 accelerator, and the rest were the same as in Example 1.

[0060] Weigh 10kg of component A and 2.4kg of component B, mix well, and measure the viscosity at 25°C to be 134mpa.s. After the sample is cured at room temperature for 7 days, the stone / stone compressive shear strength is 17MPa. According to the method of the present invention, the marble blocks are reinforced at an ambient temperature of 35°C. After 7 days of curing at 35°C, the blocks are sliced ​​normally, the reinforcing glue has good permeability in the cracks, the curing is complete, and there is no obvious yellowing.

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Abstract

The invention relates to a rough stone block reinforcement adhesive and a using method thereof. According to the reinforcement adhesive, a component A is prepared from low-viscosity epoxy resin, reactive diluent, hydroquinone, ultraviolet absorber, and a wetting agent, and a component B is prepared from methyl cyclo pentamethylene diamine, m-xylenediamine, polyether amine, ketimine, an anti-yellowing agent, curing accelerator, a coupling reagent, and benzyl alcohol; and before using, the component A and the component B are uniformly mixed to form the rough stone block reinforcement adhesive. The invention also discloses the using method for the rough stone block reinforcement adhesive. The method is characterized in that a pressing and injecting head performs pressurization by using compressed air to inject the reinforcement adhesive into rough stone block cracks. The reinforcement adhesive has the advantages of low viscosity, strong osmotic force and yellowing resistance, and can be cured under the conditions of low temperature and moisture; and the using method for the reinforcement adhesive has the characteristics that the adhesive is injected by pressurization, and is convenient to use; and the pressing and injecting head can be used repeatedly.

Description

technical field [0001] The invention relates to a modified epoxy adhesive for reinforcing stone blocks, and also relates to a method for reinforcing stone blocks, which comprises injecting the stone block strengthening adhesive into the stone blocks. Background technique [0002] Stone blocks refer to cuboid rough blanks that are cut into stones in mining and are about 3 meters long, 1.5 meters wide and 1.5 meters high. This kind of rough blank can only reach the stone processing plant after long-distance transportation; after entering the processing plant, it is cut into 15-50mm thick plates by a special slicer unit, and sent to the subsequent process for further processing. Part of the stone structure is relatively loose, and there are cracks of different depths inside, which are easy to break during the process of handling and slicing, resulting in loss and increasing costs; therefore, reinforcement measures are usually taken for blocks, such as spraying resin on the surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14
Inventor 柳雄策沈定忠郑保昌钟雪琴
Owner HUNAN KOSEN NEW MATERIAL
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