CN104591676B - A kind of coal-face reinforcing chemical slip casting material - Google Patents

A kind of coal-face reinforcing chemical slip casting material Download PDF

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Publication number
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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parts
slip casting
component
casting material
coal
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CN104591676A (en
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杨政鹏
朱建平
刘玄
张春静
杨佳
管学茂
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Henan University of Technology
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Henan University of Technology
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  • Polyurethanes Or Polyureas (AREA)

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

A kind of coal-face reinforcing chemical slip casting material
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.
CN201510061974.5A 2015-02-06 2015-02-06 A kind of coal-face reinforcing chemical slip casting material Expired - Fee Related CN104591676B (en)

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CN105060829B (en) * 2015-08-07 2017-04-05 河南万里路桥集团股份有限公司 Expressway roadbed is repaired with early strong flexibility dual-liquid slip-casting material and preparation method thereof
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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CN114213098B (en) * 2021-12-27 2023-05-16 南京科工煤炭科学技术研究有限公司 Low-heat grouting material and preparation method thereof
CN115929361A (en) * 2022-10-26 2023-04-07 中煤科工开采研究院有限公司 Roadside reinforcing and supporting method for small coal pillar mining
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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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JPH11268950A (en) * 1998-03-19 1999-10-05 Mitsui Chem Inc Lightweight inorganic board molding and its production
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