CN111138622A - Organic polymer ultralow-temperature reinforcing material for coal rock mass - Google Patents
Organic polymer ultralow-temperature reinforcing material for coal rock mass Download PDFInfo
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- CN111138622A CN111138622A CN201911410951.5A CN201911410951A CN111138622A CN 111138622 A CN111138622 A CN 111138622A CN 201911410951 A CN201911410951 A CN 201911410951A CN 111138622 A CN111138622 A CN 111138622A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5317—Phosphonic compounds, e.g. R—P(:O)(OR')2
- C08K5/5333—Esters of phosphonic acids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
- E21D9/002—Injection methods characterised by the chemical composition used
Abstract
The invention discloses an organic polymer ultralow-temperature reinforcing material for coal rock mass, which is formed by mixing a component A and a component B, wherein the mass ratio of the component A to the component B is (2-3) to (1-6), and the formula comprises the following components in 100 parts by weight: the group A comprises 26-60 parts of polyether polyol, 2-10 parts of cross-linking agent, 15-25 parts of emulsifier, 10-20 parts of flame retardant, 0.5-2.5 parts of catalyst, 0.2-1.2 parts of defoaming agent, 3-8 parts of diethylene glycol and 28-40 parts of plasticizer; the component B comprises 2-3 parts of foam stabilizer, 70-90 parts of a mixture of isocyanate and diphenylmethane diisocyanate, 10-18 parts of paraffin and 10-23 parts of antioxidant. The reinforced material of the invention is tested according to AQ1089-2011 heat of reaction: the temperature is 70-85 ℃, the material is suitable for the technical field of low temperature of coal mine chemical grouting materials, the reaction temperature of the product in the construction process of the coal mine chemical grouting reinforcing material is reduced, and possible smoke and fire caused by high reaction temperature of the product in construction are prevented.
Description
Technical Field
The invention belongs to the technical field of organic polymer reinforced materials for coal rock masses, and particularly relates to an organic polymer ultralow-temperature reinforced material for coal rock masses.
Background
In recent 20 years, polymer grouting materials have gradually become an indispensable safety guarantee technology for coal mine safety production, but low-temperature technology is still in a blank period. Therefore, the organic polymer ultralow-temperature reinforcing material for the coal rock mass is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an organic polymer ultralow-temperature reinforcing material for coal rock mass.
In order to achieve the purpose, the invention provides the following technical scheme: the organic polymer ultralow-temperature reinforcing material for the coal rock mass is formed by mixing a component A and a component B, wherein the mass ratio of the component A to the component B is (2-3) to (1-6), and the formula comprises the following components in 100 parts by weight: the group A comprises 26-60 parts of polyether polyol, 2-10 parts of cross-linking agent, 15-25 parts of emulsifier, 10-20 parts of flame retardant, 0.5-2.5 parts of catalyst, 0.2-1.2 parts of defoaming agent, 3-8 parts of diethylene glycol and 28-40 parts of plasticizer; the component B comprises 2-3 parts of foam stabilizer, 70-90 parts of a mixture of isocyanate and diphenylmethane diisocyanate, 10-18 parts of paraffin and 10-23 parts of antioxidant.
Preferably, the anti-cracking mortar further comprises a binder, wherein the binder is formed by mixing a composite anti-cracking additive and a gel, and the mass ratio of the composite anti-cracking additive to the gel is (3-5) to (5-8).
Preferably, the preparation method of the component A comprises the following steps: putting polyether glycol and diethylene glycol into a reaction kettle, mixing and uniformly stirring, and then sequentially adding a cross-linking agent, an emulsifier, a flame retardant, a catalyst, a defoaming agent and a plasticizer into the reaction kettle, and uniformly stirring to obtain the component A, wherein the viscosity of the component A is 200-350 mPa.S; the preparation method of the resin component in the component B comprises the following steps: sequentially adding a foam stabilizer, paraffin, an antioxidant and a mixture of isocyanate and diphenylmethane diisocyanate into a reaction kettle, stirring uniformly, then adjusting the pH to 6-7, firstly heating to 60-80 ℃ in the process of adjusting the pH, reacting for 2-3h, then cooling to 30 ℃ and discharging.
Preferably, the catalyst is one or a mixture of more than two of polydimethylsiloxane, a dispersant NNO and liquid polysulfide rubber.
Preferably, the antioxidant is one or a mixture of two of 2, 6-di-tert-butylphenol, phosphite ester and thioether compounds.
Preferably, the flame retardant is one or a mixture of more than two of dimethyl methylphosphonate, diethyl ethylphosphonate, triethyl phosphate and triphenyl phosphate.
Compared with the prior art, the invention has the beneficial effects that: the organic polymer ultralow-temperature reinforcing material for the coal rock mass, provided by the invention, has the temperature which can be adjusted to 70-85 ℃, is suitable for the low-temperature technical field of coal mine chemical grouting materials, reduces the reaction temperature of a product in the construction process of the coal mine chemical grouting reinforcing material, and prevents possible smoke and fire caused by high reaction temperature of the product in construction. The technical scheme of the invention mainly aims at controlling the reaction temperature of the organic reinforcing material of the coal rock stratum, and brings direct benefits that the chemical exothermic reaction of the material in the field construction process is reduced, and when the grouting amount is large, the temperature of the material is further increased due to the accumulation of a large amount of material, so that the dangerous accidents of smoke or fire of the coal body in the grouting process or after the grouting is finished are reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The organic polymer ultralow-temperature reinforcing material for the coal rock mass is formed by mixing a component A and a component B, wherein the mass ratio of the component A to the component B is 3: 5, and the organic polymer ultralow-temperature reinforcing material is prepared from the following components in parts by weight of 100 parts: the group A comprises 55 parts of polyether polyol, 4 parts of cross-linking agent, 20 parts of emulsifier, 15 parts of flame retardant, 1 part of catalyst, 1 part of defoaming agent, 5 parts of diethylene glycol and 35 parts of plasticizer; the component B comprises 2 parts of foam stabilizer, 85 parts of a mixture of isocyanate and diphenylmethane diisocyanate, 15 parts of paraffin and 10 parts of antioxidant.
The anti-cracking concrete is characterized by further comprising a binder, wherein the binder is formed by mixing a composite anti-cracking additive and gelling, and the mass ratio of the composite anti-cracking additive to the gelling is 4: 6.
Specifically, the preparation method of the component A comprises the following steps: putting polyether glycol and diethylene glycol into a reaction kettle, mixing and uniformly stirring, and then sequentially adding a cross-linking agent, an emulsifier, a flame retardant, a catalyst, a defoaming agent and a plasticizer into the reaction kettle, and uniformly stirring to obtain the component A, wherein the viscosity of the component A is 200 mPa.S; the preparation method of the resin component in the component B comprises the following steps: sequentially adding a foam stabilizer, paraffin, an antioxidant and a mixture of isocyanate and diphenylmethane diisocyanate into a reaction kettle, stirring uniformly, then adjusting the pH to be 6, firstly heating to 60 ℃ in the process of adjusting the pH, reacting for 2 hours, then cooling to 30 ℃ and discharging.
Specifically, the catalyst is polydimethylsiloxane.
Specifically, the antioxidant is 2, 6-di-tert-butylphenol.
Specifically, the flame retardant is dimethyl methylphosphonate.
Example 2
The organic polymer ultralow-temperature reinforcing material for the coal rock mass is formed by mixing a component A and a component B, wherein the mass ratio of the component A to the component B is 2: 6, and the organic polymer ultralow-temperature reinforcing material is prepared from the following components in parts by weight of 100 parts: the group A comprises 26 parts of polyether polyol, 2 parts of cross-linking agent, 15 parts of emulsifier, 10 parts of flame retardant, 0.5 part of catalyst, 0.2 part of defoaming agent, 3 parts of diethylene glycol and 28 parts of plasticizer; the component B comprises 2 parts of foam stabilizer, 70 parts of a mixture of isocyanate and diphenylmethane diisocyanate, 10 parts of paraffin and 10 parts of antioxidant.
The anti-cracking concrete is characterized by further comprising a binder, wherein the binder is formed by mixing a composite anti-cracking additive and gelling, and the mass ratio of the composite anti-cracking additive to the gelling is 3: 7.
Specifically, the preparation method of the component A comprises the following steps: putting polyether glycol and diethylene glycol into a reaction kettle, mixing and uniformly stirring, and then sequentially adding a cross-linking agent, an emulsifier, a flame retardant, a catalyst, a defoaming agent and a plasticizer into the reaction kettle, and uniformly stirring to obtain the component A, wherein the viscosity of the component A is 350 mPa.S; the preparation method of the resin component in the component B comprises the following steps: sequentially adding a foam stabilizer, paraffin, an antioxidant and a mixture of isocyanate and diphenylmethane diisocyanate into a reaction kettle, stirring uniformly, then adjusting the pH to be 7, firstly heating to 80 ℃ in the process of adjusting the pH, reacting for 3 hours, then cooling to 30 ℃ and discharging.
Specifically, the catalyst is liquid polysulfide rubber.
Specifically, the antioxidant is a thioether compound.
Specifically, the flame retardant is diethyl ethylphosphonate.
The organic polymer ultralow-temperature reinforcing material for the coal rock mass has the advantages of low reaction speed, good fluidity and good permeability, can penetrate into fine cracks of a coal (rock) layer, has strong adhesive force with the coal (rock) mass and large cohesive force, can be cured at different temperatures and environments, has certain toughness after being cured, and does not crack or fall off under pressure.
The organic polymer ultralow-temperature reinforcing material for the coal rock mass has good bonding force, and is high in compression strength and shear strength, impact resistance, fatigue resistance, acid resistance and alkali resistance after being bonded with the coal rock mass. The material has good permeability and fluidity, does not foam when meeting water, can well permeate narrow cracks of coal rock layers, and does not generate any toxic or harmful gas.
The organic polymer ultralow temperature reinforcing material for the coal rock mass is organic polymer foam with the performances of adjustable foaming time, expansion rate, no solvent, odor, flame retardance and the like, and is suitable for sealing gas outlet holes and sealing materials.
In summary, the following steps: the organic polymer ultralow-temperature reinforcing material for the coal rock mass, provided by the invention, has the temperature which can be adjusted to 70-85 ℃, is suitable for the low-temperature technical field of coal mine chemical grouting materials, reduces the reaction temperature of a product in the construction process of the coal mine chemical grouting reinforcing material, and prevents possible smoke and fire caused by high reaction temperature of the product in construction. The technical scheme of the invention mainly aims at controlling the reaction temperature of the organic reinforcing material of the coal rock stratum, and brings direct benefits that the chemical exothermic reaction of the material in the field construction process is reduced, and when the grouting amount is large, the temperature of the material is further increased due to the accumulation of a large amount of material, so that the dangerous accidents of smoke or fire of the coal body in the grouting process or after the grouting is finished are reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The organic polymer ultralow-temperature reinforcing material for the coal rock mass is characterized by comprising the following components in parts by weight: the reinforcing material is formed by mixing a component A and a component B, wherein the mass ratio of the component A to the component B is (2-3) to (1-6), and the formula comprises the following components in 100 parts by weight: the group A comprises 26-60 parts of polyether polyol, 2-10 parts of cross-linking agent, 15-25 parts of emulsifier, 10-20 parts of flame retardant, 0.5-2.5 parts of catalyst, 0.2-1.2 parts of defoaming agent, 3-8 parts of diethylene glycol and 28-40 parts of plasticizer; the component B comprises 2-3 parts of foam stabilizer, 70-90 parts of a mixture of isocyanate and diphenylmethane diisocyanate, 10-18 parts of paraffin and 10-23 parts of antioxidant.
2. The organic polymer ultralow-temperature reinforcing material for the coal rock mass as claimed in claim 1, wherein: the anti-cracking adhesive is prepared by mixing a composite anti-cracking additive and gelling, wherein the mass ratio of the composite anti-cracking additive to the gelling is (3-5) to (5-8).
3. The organic polymer ultralow-temperature reinforcing material for the coal rock mass as claimed in claim 1, wherein: the preparation method of the component A comprises the following steps: putting polyether glycol and diethylene glycol into a reaction kettle, mixing and uniformly stirring, and then sequentially adding a cross-linking agent, an emulsifier, a flame retardant, a catalyst, a defoaming agent and a plasticizer into the reaction kettle, and uniformly stirring to obtain the component A, wherein the viscosity of the component A is 200-350 mPa.S; the preparation method of the resin component in the component B comprises the following steps: sequentially adding a foam stabilizer, paraffin, an antioxidant and a mixture of isocyanate and diphenylmethane diisocyanate into a reaction kettle, stirring uniformly, then adjusting the pH to 6-7, firstly heating to 60-80 ℃ in the process of adjusting the pH, reacting for 2-3h, then cooling to 30 ℃ and discharging.
4. The organic polymer ultralow-temperature reinforcing material for the coal rock mass as claimed in claim 1, wherein: the catalyst is one or a mixture of more than two of polydimethylsiloxane, a dispersant NNO and liquid polysulfide rubber.
5. The organic polymer ultralow-temperature reinforcing material for the coal rock mass as claimed in claim 1, wherein: the antioxidant is one or a mixture of two of 2, 6-di-tert-butylphenol, phosphite ester and thioether compounds.
6. The organic polymer ultralow-temperature reinforcing material for the coal rock mass as claimed in claim 1, wherein: the flame retardant is one or a mixture of more than two of dimethyl methylphosphonate, diethyl ethylphosphonate, triethyl phosphate and triphenyl phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911410951.5A CN111138622A (en) | 2019-12-31 | 2019-12-31 | Organic polymer ultralow-temperature reinforcing material for coal rock mass |
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| CN201911410951.5A CN111138622A (en) | 2019-12-31 | 2019-12-31 | Organic polymer ultralow-temperature reinforcing material for coal rock mass |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112500696A (en) * | 2020-11-17 | 2021-03-16 | 山西潞安晋安矿业工程有限责任公司 | High-performance organic mine reinforcing material |
| CN114478982A (en) * | 2022-03-03 | 2022-05-13 | 西安科技大学 | Liquid retarding hole sealing material and preparation method thereof |
| CN114685754A (en) * | 2022-06-02 | 2022-07-01 | 河北浩威旭光新材料科技有限公司 | Organic polymer ultralow-temperature reinforcement material for coal rock mass and preparation method thereof |
| CN115181241A (en) * | 2022-08-26 | 2022-10-14 | 河北浩威旭光新材料科技有限公司 | Organic polymer ultralow-temperature reinforcing material for coal rock mass |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112500696A (en) * | 2020-11-17 | 2021-03-16 | 山西潞安晋安矿业工程有限责任公司 | High-performance organic mine reinforcing material |
| CN114478982A (en) * | 2022-03-03 | 2022-05-13 | 西安科技大学 | Liquid retarding hole sealing material and preparation method thereof |
| CN114685754A (en) * | 2022-06-02 | 2022-07-01 | 河北浩威旭光新材料科技有限公司 | Organic polymer ultralow-temperature reinforcement material for coal rock mass and preparation method thereof |
| CN114685754B (en) * | 2022-06-02 | 2022-08-23 | 河北浩威旭光新材料科技有限公司 | Organic polymer ultralow-temperature reinforcement material for coal rock mass and preparation method thereof |
| CN115181241A (en) * | 2022-08-26 | 2022-10-14 | 河北浩威旭光新材料科技有限公司 | Organic polymer ultralow-temperature reinforcing material for coal rock mass |
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