CN104591676B - A kind of coal-face reinforcing chemical slip casting material - Google Patents
A kind of coal-face reinforcing chemical slip casting material Download PDFInfo
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- CN104591676B CN104591676B CN201510061974.5A CN201510061974A CN104591676B CN 104591676 B CN104591676 B CN 104591676B CN 201510061974 A CN201510061974 A CN 201510061974A CN 104591676 B CN104591676 B CN 104591676B
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Abstract
The invention discloses a kind of coal-face reinforcing chemical slip casting material.Described chemical slip casting material is made up of A, B two-component mixing, and component A is 0.8~1:1 with the mixed volume ratio of B component;Represent with weight portion, described component A by making Oxytarch 10~25 parts by oneself, waterglass 65~85 parts, polyacrylamide 1~5 parts, silane coupler 1~3 parts, surfactant 1~3 parts and catalyst 1~3 parts of compositions;Described B component is poly methylene poly phenyl poly isocyanate 100 parts.Chemical slip casting material preparation method of the present invention is simple, slurry viscosity is low, without toxic volatile and corrosive substance, induration excellent in flame retardance, reaction temperature are low, cohesive force good, more than comprcssive strength 50Mpa, and A, B component stable performance are long for storage period, are more beneficial for popularization and application.
Description
One, technical field:
The present invention relates to a kind of chemical slip casting material, particularly relate to a kind of coal-face reinforcing chemical grouting material
Material.
Two, background technology:
Along with geological environment complicated under coal mining depth and the constantly increase of mining rate and colliery so that coal
Ore deposit recovery process easily occurs roof fall side falling accident.Safety in production for colliery, it is necessary to coal-face is carried out in advance
Grouting support.At present, conventional its excellent in mechanical performance of organic injecting paste material, but poor fire, cost are high, reaction temperature high,
Affect coal separation.Such as: 1, Chinese patent discloses a kind of grouting material for reinforcing fragmentized coal body, Authorization Notice No.: CN
102492405 B, authorized announcement date: 2014.07.16, this patent utilization Oxytarch and calcium chloride solution and Lauxite and
Poly-silicon solution makes double-component injecting paste material, and this Flame Retardancy is good, low cost, but intensity is low, consolidation time is long.2, China
Patent discloses a kind of polyurethane-waterglass composite grouting material and preparation method and application, publication number:
CN103756291A, publication date: 2014.04.30, this material uses performed polymer to do, complex manufacturing process and the performance of product
And stability is wayward.
Three, summary of the invention:
The technical problem to be solved in the present invention is: for used by the specific condition of coal-face and existing coal-face
The problem that chemical sizwe exists, the present invention provides a kind of coal-face reinforcing chemical slip casting material.The present invention utilizes self-control
Oxytarch and isocyanates reaction form complicated network structure, simultaneously because Oxytarch is the polyhydroxylated of macromole
Compound makes reacting balance, reaction temperature low.A, B component viscosity in technical solution of the present invention are low, good stability, are conducive to long
Phase stores.
In order to solve the problems referred to above, the present invention adopts the technical scheme that:
The present invention provides a kind of coal-face reinforcing chemical slip casting material, and described chemical slip casting material is by the double group of A, B
Part mixing composition, component A is 0.8~1:1 with the mixed volume ratio of B component;
Represent with weight portion, described component A by making Oxytarch 10~25 parts by oneself, waterglass 65~85 parts, polyacrylamide
Amine 1~5 parts, silane coupler 1~3 parts, surfactant 1~3 parts and catalyst 1~3 parts of compositions;
Representing with weight portion, described B component is poly methylene poly phenyl poly isocyanate 100 parts.
According to above-mentioned coal-face reinforcing chemical slip casting material, the preparation method of described self-control Oxytarch is:
Add 60 parts of water, 30 parts of starch according to mass fraction in a kettle. and the hydrogen peroxide 5 parts stirring that mass percentage concentration is 30% is equal
Even, fully oxidized 3h under normal temperature condition, obtain making Oxytarch by oneself.
According to above-mentioned coal-face reinforcing chemical slip casting material, described waterglass is sodium silicate solution or potassium silicate
Solution;The density of described waterglass is 1.30~1.50g/cm3, the modulus of described waterglass is 2.5~3.3.
According to above-mentioned coal-face reinforcing chemical slip casting material, described polyacrylamide is anionic polypropylene
Amide or cationic-type polyacrylamide.
According to above-mentioned coal-face reinforcing chemical slip casting material, described silane coupler is aminopropyl trimethoxy
Silane, aminopropyl triethoxysilane, γ-aminopropyltriethoxy diethoxy silane and γ-aminopropyltriethoxy dimethoxysilane
In at least one.
According to above-mentioned coal-face reinforcing chemical slip casting material, described surfactant is sorbitan fatty
At least one in esters of gallic acid surfactant i.e. span 20, span 40, sorbester p18, sorbester p17 and sorbester p37 is (by sea, Jiangsu Province
Peace petrochemical plant produces).
According to above-mentioned coal-face reinforcing chemical slip casting material, described catalyst be N, N-dimethyl cyclohexyl amine,
At least one in three (dimethylamino-propyl) Hexahydrotriazine, N-methylmorpholine and double (3-dimethylamino-propyl) amine.
According to above-mentioned coal-face reinforcing chemical slip casting material, described poly methylene poly phenyl poly isocyanate is
PM200 poly methylene poly phenyl poly isocyanate.
According to above-mentioned coal-face reinforcing chemical slip casting material, described coal-face reinforcing chemical grouting material
The preparation method of material: first weigh various composition according to the ratio of component A in claim 1, and be uniformly mixed, then
Slip casting is carried out according to the mixed volume of the two than 0.8~1:1 with B component.
The positive beneficial effect of the present invention:
1, the present invention uses self-control Oxytarch, utilizes the polyhydroxy structure of Oxytarch and isocyanates reaction to be formed multiple
Miscellaneous network structure, owing to the macromolecular structure of Oxytarch makes reacting balance, temperature relatively low, starch low cost and green nothing
Pollute.
2, the chemical slip casting material of the present invention adds silane coupler, make inorganic waterglass and organic polyurethane lead to
The effect crossing chemical bond combines, and adds the cohesive force of injecting paste material and coal and rock simultaneously.
3, the chemical slip casting material of the present invention adds polyacrylamide in reaction system, introduces carbon-chain structure so that
The network structure of whole reaction is cross-linked with each other and forms an entirety;Thus substantially increase the comprcssive strength of injecting paste material.
4, the present invention utilizes waterglass to make the good flame resistance of injecting paste material, and waterglass can absorb what reaction generated simultaneously
CO2, do not foam so injecting paste material meets water.
5, the chemical slip casting material preparation method of the present invention is simple, and slurry viscosity is low, without toxic volatile and corrosivity
Material, concretion body strength is high, resistance to compression at more than 50Mpa, and A, B component stable performance are long for storage period, and being more beneficial for promoting should
With.
Four, detailed description of the invention:
The present invention is expanded on further below in conjunction with embodiment, but is not limiting as present disclosure.
Number described in following embodiment is mass fraction.
The preparation method of the self-control Oxytarch employed in following example is:
60 parts of water, 30 parts of starch and hydrogen peroxide 5 that mass percentage concentration is 30% is added in a kettle. according to mass fraction
Part stirs, fully oxidized 3h under normal temperature condition, obtains making Oxytarch by oneself.
Embodiment 1:
The preparation of component A: weigh 10 parts of self-control Oxytarch, 85 parts of moduluses are the waterglass of 2.5,1 part of anionic gathers
Acrylamide, 2 parts of aminopropyl trimethoxysilane, 1 part of span 20 and 1 part of N, N-dimethyl cyclohexyl amine, be uniformly mixed, envelope
Equipment is used;
B component: poly methylene poly phenyl poly isocyanate PM200.
During use, it is that 1:1 carries out mix homogeneously by component A and B component according to volume ratio, reaction solidification under room temperature, and survey
The examination material product index such as table 1 below of 6 hours at normal temperatures:
The performance data of table 1 embodiment 1 chemical slip casting material
Component A viscosity (mPa.s, 25 DEG C) | 270 |
Comprcssive strength (Mpa) | 54.3 |
Adhesion strength (Mpa) | 3.1 |
Oxygen index (OI) (%) | 53.2 |
Internal reaction temperature (DEG C) | 87.2 |
Embodiment 2:
The preparation of component A: weigh 14 parts of self-control Oxytarch, 75 parts of moduluses are the waterglass of 2.8,2 parts of anionics gather
Acrylamide, 2 parts of aminopropyl triethoxysilanes, 1 part of γ-aminopropyltriethoxy dimethoxysilane, 2 parts of span 40s, 1 part of department
Dish 80 and 3 parts of N-methylmorpholines, various raw material stirring are uniform, encapsulate standby;
B component: poly methylene poly phenyl poly isocyanate PM200;
During use, component A and B component are solidified according to volume ratio 0.8:1 mix homogeneously, normal-temperature reaction, and test material
The product index of 6 hours such as table 2 below at normal temperatures:
The performance data of table 2 embodiment 2 chemical slip casting material
Component A viscosity (mPa.s, 25 DEG C) | 275 |
Comprcssive strength (Mpa) | 57.6 |
Adhesion strength (Mpa) | 3.5 |
Oxygen index (OI) (%) | 50.6 |
Internal reaction temperature (DEG C) | 89.3 |
Embodiment 3:
The preparation of component A: weighing 19 parts of self-control Oxytarch, 69 parts of moduluses is the waterglass of 2.9,5 parts of cationic polies
Acrylamide, 3 parts of γ-aminopropyltriethoxy diethoxy silanes, 2 parts of sorbester p18s and 2 part of three (dimethylamino-propyl) hexahydro three
Piperazine, by various raw material mixing and stirring, encapsulates standby;
B component: poly methylene poly phenyl poly isocyanate PM200;
During use, by component A and B component according to the ratio mix homogeneously of volume ratio 1:1, normal-temperature reaction solidifies, and tests
The material product index such as table 3 below of 6 hours at normal temperatures:
The performance data of table 3 embodiment 3 chemical slip casting material
Component A viscosity (mPa.s, 25 DEG C) | 282 |
Comprcssive strength (Mpa) | 58.7 |
Adhesion strength (Mpa) | 3.7 |
Oxygen index (OI) (%) | 50.3 |
Internal reaction temperature (DEG C) | 83.2 |
Embodiment 4:
The preparation of component A: weighing 25 parts of self-control Oxytarch, 65 parts of moduluses is the waterglass of 3.1,4 parts of cationic polies
Double (3-dimethylamino-propyl) amine of acrylamide, 1 part of γ-aminopropyltriethoxy diethoxy silane, 3 parts of sorbester p37s and 2 parts, will
Various raw material mixing and stirring, encapsulate standby;
B component: poly methylene poly phenyl poly isocyanate PM200;
During use, by component A and B component according to the ratio mix homogeneously of volume ratio 1:1, normal-temperature reaction solidifies, and tests
The material product index such as table 4 below of 6 hours at normal temperatures:
The performance data of table 4 embodiment 4 chemical slip casting material
Component A viscosity (mPa.s, 25 DEG C) | 294 |
Comprcssive strength (Mpa) | 53.1 |
Adhesion strength (Mpa) | 2.8 |
Oxygen index (OI) (%) | 50.2 |
Internal reaction temperature (DEG C) | 79.6 |
Embodiment 5:
The preparation of component A: weigh 21 parts of self-control Oxytarch, 72 parts of moduluses are the waterglass of 2.5,1 part of anionic gathers
Double (3-dimethylamino-propyl) amine of acrylamide, 3 parts of aminopropyl trimethoxysilane, 2 parts of span 40s and 1 part, by various raw materials
Mixing and stirring, encapsulates standby;
B component: poly methylene poly phenyl poly isocyanate PM200;
During use, by component A and B component according to the ratio mix homogeneously of volume ratio 0.92:1, normal-temperature reaction solidifies, and surveys
The examination material product index such as table 5 below of 6 hours at normal temperatures:
The performance data of table 5 embodiment 5 chemical slip casting material
Component A viscosity (mPa.s, 25 DEG C) | 283 |
Comprcssive strength (Mpa) | 54.8 |
Adhesion strength (Mpa) | 3.6 |
Oxygen index (OI) (%) | 51.3 |
Internal reaction temperature (DEG C) | 86.3 |
Embodiment 6:
The preparation of component A: weigh 16 parts of self-control Oxytarch, 72 parts of moduluses are the waterglass of 3.3,4 parts of anionics gather
Acrylamide, 2 parts of γ-aminopropyltriethoxy dimethoxysilane, 3 parts of sorbester p18s and 3 part of three (dimethylamino-propyl) hexahydro three
Piperazine, by various raw material mixing and stirring, encapsulates standby;
B component: poly methylene poly phenyl poly isocyanate PM200;
During use, by component A and B component according to the ratio mix homogeneously of volume ratio 1:1, normal-temperature reaction solidifies, and tests
The material product index such as table 6 below of 6 hours at normal temperatures:
The performance data of table 6 embodiment 6 chemical slip casting material
Component A viscosity (mPa.s, 25 DEG C) | 276 |
Comprcssive strength (Mpa) | 56.2 |
Adhesion strength (Mpa) | 3.2 |
Oxygen index (OI) (%) | 51.6 |
Internal reaction temperature (DEG C) | 86.2 |
Claims (9)
1. a coal-face reinforcing chemical slip casting material, it is characterised in that described chemical slip casting material is by A, B two-component
Mixing composition, component A is 0.8~1:1 with the mixed volume ratio of B component;
Represent with weight portion, described component A by making Oxytarch 10~25 parts by oneself, waterglass 65~85 parts, polyacrylamide 1~
5 parts, silane coupler 1~3 parts, surfactant 1~3 parts and catalyst 1~3 parts of compositions;
Representing with weight portion, described B component is poly methylene poly phenyl poly isocyanate 100 parts;
The preparation method of described self-control Oxytarch is: add in a kettle. according to mass fraction 60 parts of water, 30 parts of starch and
Mass percentage concentration be 30% hydrogen peroxide 5 parts stir, fully oxidized 3h under normal temperature condition, obtain make by oneself Oxytarch.
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described waterglass is
Sodium silicate solution or potassium silicate solution;The density of described waterglass is 1.30~1.50g/cm3。
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described waterglass
Modulus is 2.5~3.3.
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described polyacrylamide
Amine is anion-polyacrylamide or cationic-type polyacrylamide.
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described silane coupled
Agent is aminopropyl trimethoxysilane, aminopropyl triethoxysilane, γ-aminopropyltriethoxy diethoxy silane and γ-ammonia third
At least one in ylmethyl dimethoxysilane.
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described surface activity
Agent be in the sorbitan fatty acid ester i.e. span 20 of class surfactant, span 40, sorbester p18, sorbester p17 and sorbester p37 extremely
Few one.
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described catalyst is
In N, N-dimethyl cyclohexyl amine, three (dimethylamino-propyl) Hexahydrotriazine, N-methylmorpholine and double (3-dimethylamino-propyl) amine
At least one.
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described polymethylene
Polyphenyl polyisocyanate is PM200 poly methylene poly phenyl poly isocyanate.
Coal-face reinforcing chemical slip casting material the most according to claim 1, it is characterised in that described coal work
The preparation method of face reinforcing chemical slip casting material: first weigh various composition according to the ratio of component A in claim 1,
And be uniformly mixed, then carry out slip casting according to the mixed volume of the two than 0.8~1:1 with B component.
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CN105669945A (en) * | 2016-04-19 | 2016-06-15 | 河南理工大学 | Red mud-based self-suspension flexible grouting material and preparation method thereof |
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KR20130103883A (en) * | 2012-03-12 | 2013-09-25 | 주식회사 정우소재 | Rapid setting cement adhesive for reinforcing mesh adhering on alc panel |
CN104177052A (en) * | 2014-08-02 | 2014-12-03 | 北京中煤矿山工程有限公司 | Bi-component grouting material for coal mine reinforcing coal and rock masses |
CN104177051A (en) * | 2013-05-24 | 2014-12-03 | 青岛极致节能环保有限公司 | Low-carbon efficient energy-conservation environmentally-friendly material |
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Patent Citations (4)
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JPH11268950A (en) * | 1998-03-19 | 1999-10-05 | Mitsui Chem Inc | Lightweight inorganic board molding and its production |
KR20130103883A (en) * | 2012-03-12 | 2013-09-25 | 주식회사 정우소재 | Rapid setting cement adhesive for reinforcing mesh adhering on alc panel |
CN104177051A (en) * | 2013-05-24 | 2014-12-03 | 青岛极致节能环保有限公司 | Low-carbon efficient energy-conservation environmentally-friendly material |
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