CN106905657B - A kind of coal and rock reinforcement material - Google Patents
A kind of coal and rock reinforcement material Download PDFInfo
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- CN106905657B CN106905657B CN201710227390.XA CN201710227390A CN106905657B CN 106905657 B CN106905657 B CN 106905657B CN 201710227390 A CN201710227390 A CN 201710227390A CN 106905657 B CN106905657 B CN 106905657B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08L61/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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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
- C08G2101/00—Manufacture of cellular products
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention provides a kind of coal and rock reinforcement material, the reinforcement material is made of component A and B component 1-2:1 in mass ratio, and the component A is polyurethane high molecule material, and the B component is urea-formaldehyde materials；The compounding of rational proportion is carried out while creativeness of the invention using polyurethane high molecule reinforcement material and Lauxite reinforcement material, at the same time in summary two kinds of reinforcement material excellent properties while, also respective defect is compensated for, preparation-obtained composite consolidation material has very excellent cohesiveness, resistance to compression tensile property and impact resistance acid-proof alkaline, provides a kind of suitable reinforcement material for the coal petrography coal mine reinforcing of high request.
Description
Technical field
The invention belongs to Grouting field of material technology, and in particular to a kind of coal and rock reinforcement material.
Background technique
Rich coal resources in China, distributional region is extensive, and coal bed texture is complicated.In the mining process of coal mine, it can not keep away
Exempt to encounter the coal body of loose crushing, intensity is low, and stability is poor, side fall roof occurs in tunneling process, therefore easily in order to protect
Advance reinforcement must be carried out to breaking roof by demonstrate,proving mine safety production, efficiently controlled country rock and be caving.
In last century, underground mine use reinforcement material mainly injects the advance reinforcement branch as coal and rock with cement slurry
Shield, but cement slurry reinforcing curing time is too long, is fully cured and needs or so week, greatly reduces production efficiency, oneself takes
Disappear use.
Into the beginning of this century, China introduces polyurethane material from foreign countries and carries out advance reinforcement supporting.The reference of polyurethane, contracting
Short curing time, being fully cured only needs or so hour, improves the production efficiency of coal.Polyurethane injecting paste material be with
Polyisocyanates with rob more based compound it is aggregated react preparation chemical slip casting material, be widely used in water conservancy and hydropower, building,
In traffic engineering and field of mining, play the role of waterproofing and leakage-stopping to deformation joint, construction joint, structural joint, to structure foundation complexity
Play the effects of reinforcement and strengthening in stratum.However, existing hydrophilic polyurethane water reinforcement material is mostly prepolymer method preparation, obtain
The performed polymer viscosity arrived is larger, needs to add solvent and is diluted to suitable viscosity.The diluent used is mostly acetone, dimethylbenzene etc.
Organic solvent.Low boiling point, it is inflammable.Either there is biggish harm to direct labor or construction personnel.In mining environment,
Due to the volatilization of organic solvent, the danger of explosion is had.And for many years, have both at home and abroad a large amount of because cutting grouting soil draws
The report of the fire risen.And it is relatively high to the equipment requirement of storage and transport due to its volatilization, inflammability, wood is improved into,
There is also security risks in coal mine use process.And urea-formaldehyde materials internal reaction temperature it is lower at 60 DEG C hereinafter, use
Urea-formaldehyde materials are reinforced, and cost, but the Lauxite class slip casting of the prior art have been saved while improving mining safety
Material, easily foaming causes that compression strength is low, poor toughness when in use, it is difficult to promote and apply.The prior art is not also about same
When carry out rational proportion using polyurethane and Lauxite and prepare the report of reinforcement material, exploitation is provided simultaneously with polyurethane and urea
The reinforcement material of urea formaldehyde advantage is a new direction of reinforcement of coal and rock investigation of materials.
Summary of the invention
In view of the deficiency of the prior art, the object of the present invention is to provide a kind of curing time is short, resistance to compression, tension are strong
Degree and bond strength are high, the compound coal petrography reinforcement material that impact resistance, acid-fast alkali-proof are had excellent performance.
To solve the above problems, the technical solution adopted by the present invention are as follows:
A kind of coal and rock reinforcement material, the reinforcement material are made of component A and B component 1-2:1 in mass ratio；
Wherein, the component A is grouped as by A1 component and A2 group, and A1 component is by 30-50 parts of polyether polyol, polyester polyols
20-40 parts of alcohol, 0.5-2 parts of composite catalyst, 5-10 parts of fire retardant, 0.5-1 parts of foam stabiliser compositions；A2 group is divided into more methylenes
Quito polyphenyl polyisocyanate；
The B component is made of resin components and curing agent component, the resin components include 40-60 parts of Lauxite,
10-20 parts of polyethylene glycol, dispersing agent 10-20 parts, 5-10 parts of antistatic agent of dilution；The curing agent is by 20-40 parts of benzene sulfonic acid, nothing
20-30 parts of machine acid, 2-4 parts of inorganic ammonium salt and 5-30 parts of water compositions.
In addition, the volume ratio of the A1 and A2 component is 1:1；The volume ratio of resin components and curing agent component in B component
For 4:1.
The composite catalyst is that tertiary amine catalyst is combined with organic tin catalyst according to the mass ratio of 10:1；
The tertiary amine catalyst is triethylene diamine or five methyl diethylentriamine, and the organic tin catalyst is tin dilaurate
Dioctyltin or dibutyltin diacetate.
The degree of functionality of the polyether polyol is 2-4, molecular weight 500-800, hydroxyl value 100-500mgKOH/g；Institute
The degree of functionality for the polyester polyol stated is 2-6, molecular weight 300-900, hydroxyl value 200-400mgKOH/g.
The fire retardant is trichloropropyl phosphate；The foam stabiliser is silicone oil foam stabiliser, specially AK-
8803 or H-3612 foam stabiliser.
The viscosity of the poly methylene poly phenyl poly isocyanate is 180-240mPa.s, and-NCO (wt%) is 30-34%.
The antistatic agent is one or more of sodium alkyl sulfonate, tween.
The inorganic acid is sulfuric acid or hydrochloric acid, and the inorganic ammonium salt is ammonium sulfate or ammonium chloride, and the dilution dispersing agent is
Propylene carbonate.
The A1 component the preparation method comprises the following steps: by polyether polyol, polyester polyol investment reaction kettle in be mixed and stirred for
Uniformly, then catalyst, fire retardant and foam stabiliser are added in reaction kettle and are stirred evenly；Resin in the B component
Component the preparation method comprises the following steps: first by Lauxite, polyethylene glycol, dilution dispersing agent and antistatic agent successively put into reaction kettle,
It stirs evenly, then plus alkali adjusts pH between 8-9, is warming up to 60-80 DEG C of reaction 2-3h, stops heating, then acid adding is adjusted
PH is 6-7 and adjusts viscosity to be 20-30s, is cooled to 30 DEG C of dischargings.
Technical effect of the invention are as follows: polyurethane high molecule reinforcement material and ureaformaldehyde are used while creativeness of the invention
Resin reinforcement material carry out rational proportion compounding, at the same time in summary two kinds of reinforcement material excellent properties while, also more
Mended respective defect, preparation-obtained composite consolidation material have very excellent cohesiveness, resistance to compression tensile property and
Impact resistance acid-proof alkaline provides a kind of suitable reinforcement material for the coal petrography coal mine reinforcing of high request.
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to embodiment:
Embodiment 1
The preparation of A1 component: taking degree of functionality is 3, molecular weight 600, and hydroxyl value is the polyether polyol 40 of 300mgKOH/g
Part, degree of functionality 5, molecular weight 700, hydroxyl value are to be mixed and stirred in 30 parts of investment reaction kettles of 300mgKOH/g polyester polyol
Uniformly, then 1 part of composite catalyst, 8 parts of fire retardant trichloropropyl phosphate and 0.8 part of AK-8803 foam stabiliser are added anti-
It answers in kettle and stirs evenly；The composite catalyst is the matter of triethylene diamine and Bis(lauroyloxy)dioctyltin according to 10:1
Amount ratio is combined；
The preparation of resin components in B component: first by 50 parts of Lauxite, 15 parts of polyethylene glycol, dilution dispersing agent propylene glycol
8 parts of 15 parts of carbonic ester and antistatic agent sodium alkyl sulfonate are successively put into reaction kettle, are stirred evenly, and then plus ammonium hydroxide adjusting pH is
8.5, it is warming up to 70 DEG C of reaction 2.5h, stops heating, then plus dilute hydrochloric acid adjusts that pH is 6.5 and to adjust viscosity be 25s, is cooled to
30 DEG C of dischargings；
The preparation of curing agent component in B component: 30 parts of benzene sulfonic acid, 25 parts of sulfuric acid, 3 parts of ammonium chloride and 20 parts of water are added anti-
It answers in kettle, is stirred 1 hour and discharges at room temperature；
The preparation of curing agent: being 200mPa.s, the more benzene of polymethylene that-NCO (wt%) is 32% by A1 component and viscosity
The A2 component of Quito isocyanates 1:1 by volume, in B component after resin components and curing agent component 4:1 reaction by volume
It is stirred mixing, and the control of the mass ratio of component A and B component is 1:2.
Embodiment 2
The preparation of A1 component: taking degree of functionality is 2, molecular weight 500, and hydroxyl value is the polyether polyol 30 of 200mgKOH/g
Part, degree of functionality 4, molecular weight 600, hydroxyl value are to be mixed and stirred in 20 parts of investment reaction kettles of 400mgKOH/g polyester polyol
Uniformly, then 1.5 parts of composite catalyst, 8 parts of fire retardant trichloropropyl phosphate and 0.8 part of H-3612 foam stabiliser are added anti-
It answers in kettle and stirs evenly；The composite catalyst be five methyl diethylentriamine and Bis(lauroyloxy)dioctyltin according to
The mass ratio of 10:1 is combined；
The preparation of resin components in B component: first by 40 parts of Lauxite, 10 parts of polyethylene glycol, dilution dispersing agent propylene glycol
7 parts of 15 parts of carbonic ester and antistatic agent tween are successively put into reaction kettle, are stirred evenly, and then plus ammonium hydroxide adjusting pH is 8, heating
To 65 DEG C of reaction 2.5h, stop heating, then plus dilute hydrochloric acid adjusts that pH is 7 and to adjust viscosity be 28s, is cooled to 30 DEG C of dischargings i.e.
It can；
The preparation of curing agent component in B component: 20 parts of benzene sulfonic acid, 25 parts of hydrochloric acid, 3 parts of ammonium sulfate and 20 parts of water are added anti-
It answers in kettle, is stirred 1 hour and discharges at room temperature；
The preparation of curing agent: being 200mPa.s, the more benzene of polymethylene that-NCO (wt%) is 31% by A1 component and viscosity
The A2 component of Quito isocyanates 1:1 by volume, in B component after resin components and curing agent component 4:1 reaction by volume
It is stirred mixing, and the control of the mass ratio of component A and B component is 1:1.5.
Embodiment 3
The preparation of A1 component: taking degree of functionality is 4, molecular weight 800, and hydroxyl value is the polyether polyol 50 of 400mgKOH/g
Part, degree of functionality 6, molecular weight 900, hydroxyl value are to be mixed and stirred in 40 parts of investment reaction kettles of 400mgKOH/g polyester polyol
Uniformly, then 2 parts of composite catalyst, 8 parts of fire retardant trichloropropyl phosphate and 0.8 part of AK-8803 foam stabiliser are added anti-
It answers in kettle and stirs evenly；The composite catalyst is the mass ratio of triethylene diamine and dibutyltin diacetate according to 10:1
It is combined；
The preparation of resin components in B component: first by 60 parts of Lauxite, 20 parts of polyethylene glycol, dilution dispersing agent propylene glycol
8 parts of 15 parts of carbonic ester and antistatic agent sodium alkyl sulfonate are successively put into reaction kettle, are stirred evenly, and then plus ammonium hydroxide adjusting pH is
Between 9, it is warming up to 70 DEG C of reaction 3h, stops heating, then plus dilute hydrochloric acid adjusts that pH is 7 and to adjust viscosity be 25s, is cooled to 30
DEG C discharging；
The preparation of curing agent component in B component: 40 parts of benzene sulfonic acid, 30 parts of sulfuric acid, 4 parts of ammonium chloride and 30 parts of water are added anti-
It answers in kettle, is stirred 1 hour and discharges at room temperature；
The preparation of curing agent: being 240mPa.s, the more benzene of polymethylene that-NCO (wt%) is 30% by A1 component and viscosity
The A2 component of Quito isocyanates 1:1 by volume, in B component after resin components and curing agent component 4:1 reaction by volume
It is stirred mixing, and the control of the mass ratio of component A and B component is 1:2.
Comparative example 1
The preparation of A1 component: taking degree of functionality is 3, molecular weight 600, and hydroxyl value is the polyether polyol 40 of 300mgKOH/g
Part, degree of functionality 5, molecular weight 700, hydroxyl value are to be mixed and stirred in 30 parts of investment reaction kettles of 300mgKOH/g polyester polyol
Uniformly, then 1 part of composite catalyst, 8 parts of fire retardant trichloropropyl phosphate and 0.8 part of AK-8803 foam stabiliser are added anti-
It answers in kettle and stirs evenly；The composite catalyst is the matter of triethylene diamine and Bis(lauroyloxy)dioctyltin according to 10:1
Amount ratio is combined；
The preparation of curing agent: being 200mPa.s, the more benzene of polymethylene that-NCO (wt%) is 32% by A1 component and viscosity
The A2 component of Quito isocyanates by volume 1:1 carry out reaction be stirred.
Comparative example 2
The preparation of resin components in B component: first by 50 parts of Lauxite, 15 parts of polyethylene glycol, dilution dispersing agent propylene glycol
8 parts of 15 parts of carbonic ester and antistatic agent sodium alkyl sulfonate are successively put into reaction kettle, are stirred evenly, and then plus ammonium hydroxide adjusting pH is
8.5, it is warming up to 70 DEG C of reaction 2.5h, stops heating, then plus dilute hydrochloric acid adjusts that pH is 6.5 and to adjust viscosity be 25s, is cooled to
30 DEG C of dischargings；
The preparation of curing agent component in B component: 30 parts of benzene sulfonic acid, 25 parts of sulfuric acid, 3 parts of ammonium chloride and 20 parts of water are added anti-
It answers in kettle, is stirred 1 hour and discharges at room temperature；
The preparation of curing agent: mixed by being stirred after the 4:1 reaction by volume of resin components in B component and curing agent component
Conjunction.
The performance of the product of embodiment 1-3 and comparative example 1-2 is evaluated, is shown in Table 1:
From the experimental data of table 1 it follows that reinforcement material of the invention curing time, compression strength, bending strength,
Shear strength and adhesion strength all embody excellent performance, are the preferred materials of coal petrography coal mine reinforcing material.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of coal and rock reinforcement material, which is characterized in that the reinforcement material is by component A and B component 1-2:1 group in mass ratio
At；
Wherein, the component A is grouped as by A1 component and A2 group, and A1 component is by 30-50 parts of polyether polyol, polyester polyol
20-40 parts, 0.5-2 parts of composite catalyst, 5-10 parts of fire retardant, 0.5-1 parts of foam stabiliser compositions；A2 group is divided into polymethylene
Polyphenyl polyisocyanate；
The B component is made of resin components and curing agent component, and the resin components include 40-60 parts of Lauxite, poly- second
10-20 parts of glycol, dispersing agent 10-20 parts, 5-10 parts of antistatic agent of dilution；The curing agent is by 20-40 parts of benzene sulfonic acid, inorganic acid
20-30 parts, 2-4 parts of inorganic ammonium salt and 5-30 parts of water compositions；
The A1 component the preparation method comprises the following steps: will polyether polyol, polyester polyol investment reaction kettle in be mixed and stirred for uniformly,
Then catalyst, fire retardant and foam stabiliser are added in reaction kettle and are stirred evenly；Resin components in the B component
The preparation method comprises the following steps: first successively putting into Lauxite, polyethylene glycol, dilution dispersing agent and antistatic agent in reaction kettle, stirring is equal
Even, then plus alkali adjusts pH between 8-9, is warming up to 60-80 DEG C of reaction 2-3h, stops heating, and then plus acid for adjusting pH is 6-7
And adjusting viscosity is 20-30s, is cooled to 30 DEG C of dischargings.
2. coal and rock reinforcement material according to claim 1, which is characterized in that the volume ratio of the A1 and A2 component is 1:
1；The volume ratio of resin components and curing agent component is 4:1 in B component.
3. coal and rock reinforcement material according to claim 1, which is characterized in that the composite catalyst is tertiary amines catalysis
Agent is combined with organic tin catalyst according to the mass ratio of 10:1；The tertiary amine catalyst is triethylene diamine or five first
Base diethylenetriamines, the organic tin catalyst are Bis(lauroyloxy)dioctyltin or dibutyltin diacetate.
4. coal and rock reinforcement material according to claim 2, which is characterized in that the degree of functionality of the polyether polyol is
2-4, molecular weight 500-800, hydroxyl value 100-500mgKOH/g；The degree of functionality of the polyester polyol is 2-6, molecular weight
For 300-900, hydroxyl value 200-400mgKOH/g.
5. coal and rock reinforcement material according to claim 3, which is characterized in that the fire retardant is trichloropropyl phosphate；
The foam stabiliser is silicone oil foam stabiliser, specially AK-8803 or H-3612 foam stabiliser.
6. coal and rock reinforcement material according to claim 4, which is characterized in that the polymethylene polyphenyl polyisocyanic acid
The viscosity of ester is 180-240mPa.s, and-NCO (wt%) is 30-34%.
7. coal and rock reinforcement material according to claim 4, which is characterized in that the antistatic agent be sodium alkyl sulfonate,
One or more of tween.
8. coal and rock reinforcement material according to claim 4, which is characterized in that the inorganic acid is sulfuric acid or hydrochloric acid, institute
Stating inorganic ammonium salt is ammonium sulfate or ammonium chloride, and the dilution dispersing agent is propylene carbonate.
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| CN201710227390.XA CN106905657B (en) | 2017-04-10 | 2017-04-10 | A kind of coal and rock reinforcement material |
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| EP0084700A1 (en) * | 1981-11-06 | 1983-08-03 | Abelard Management Services Limited | Process for the manufacture of polyureas containing urethane groups and the products so obtained |
| CN102532455A (en) * | 2011-12-23 | 2012-07-04 | 山东东大一诺威新材料有限公司 | Polyurethane polymer material for coal rock mass reinforcement and preparation method thereof |
| CN102558498A (en) * | 2012-01-04 | 2012-07-11 | 山西兆信生物科技有限公司 | Polyurethane reinforcing and filling materials for coal mine |
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| CN103739802A (en) * | 2013-12-13 | 2014-04-23 | 山东一诺威新材料有限公司 | Modified urea-formaldehyde resin reinforced material used for coal mine and preparation method thereof |
-
2017
- 2017-04-10 CN CN201710227390.XA patent/CN106905657B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0084700A1 (en) * | 1981-11-06 | 1983-08-03 | Abelard Management Services Limited | Process for the manufacture of polyureas containing urethane groups and the products so obtained |
| CN102532455A (en) * | 2011-12-23 | 2012-07-04 | 山东东大一诺威新材料有限公司 | Polyurethane polymer material for coal rock mass reinforcement and preparation method thereof |
| CN102558498A (en) * | 2012-01-04 | 2012-07-11 | 山西兆信生物科技有限公司 | Polyurethane reinforcing and filling materials for coal mine |
| CN103160075A (en) * | 2013-04-03 | 2013-06-19 | 巴斯夫浩珂矿业化学（中国）有限公司 | Urea resin injecting paste material for reinforcing coal body |
| CN103739802A (en) * | 2013-12-13 | 2014-04-23 | 山东一诺威新材料有限公司 | Modified urea-formaldehyde resin reinforced material used for coal mine and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 新型脲醛树脂胶黏剂的改性;吴蓁等;《化工进展》;20060228;第25卷(第2期);1.2.3 水性聚氨酯树脂的改性机理 |
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