CN106277989A - A kind of preparation method of anti-leakage blocking agent - Google Patents
A kind of preparation method of anti-leakage blocking agent Download PDFInfo
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- CN106277989A CN106277989A CN201610678247.8A CN201610678247A CN106277989A CN 106277989 A CN106277989 A CN 106277989A CN 201610678247 A CN201610678247 A CN 201610678247A CN 106277989 A CN106277989 A CN 106277989A
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- leakage blocking
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00008—Obtaining or using nanotechnology related materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses the preparation method of a kind of anti-leakage blocking agent, belong to anti-leakage blocking agent preparing technical field.The present invention takes hydroxypropyl guar gum and two (triethanolamine) metatitanic acid diisopropyl ester cross-linking reaction, prepare gel, drying, pulverize and sieve dry gel particle is standby, take bombax cotton again, surface modification is carried out with styrene, strengthening bombax cotton oil absorption, to obtain innovation wood cotton fiber standby, then the material grinding and sieving such as meerschaum and calcium oxide are obtained mixed-powder, the method being mixed to prepare anti-leakage blocking agent with other materials such as standby bombax cotton cement and standby dry gel particle, cement.Preparation process of the present invention is simple, and products obtained therefrom adhesive property is good, and rate of set is fast；Make full use of xerogel water-keeping material, modified kapok fiber oil absorption material, mix powder and cementitious composite and prepare anti-leakage blocking agent, with strong points, it is effectively increased its anti-permeability performance, enhances its durability.
Description
Technical field
The present invention relates to the preparation method of a kind of anti-leakage blocking agent, belong to anti-leakage blocking agent preparing technical field.
Background technology
The seepage of building directly influences commercial production and people's lives, the most effectively repairs it and causes
The great attention of people.Therefore, people investigated a kind of loss circulation material anti-leakage blocking agent, for grey powder, nonpoisonous and tasteless,
Do not fire, environmental protection, can be used for water works；Cementitious capillary waterproofing material and the compound product of inorganic leak-stopping material
Product, science introduces organic high molecular polymer flexible material, makes polymer, active chemistry and cement based composition cross-linking reaction
Formation has good flexible cubic network water proof anti-seepage structure, significantly improves the oneself in crack in rigid concrete structure
Repair ability.
Loss circulation material on domestic market is mainly following several big class.Cement inorganic coagulant class one by one, this kind of material
Material, with ordinary cement as base material, mixes a certain proportion of fast solidifying component, such as waterglass, sodium sulfate, five vitriol waterproofing agents, Gypsum Fibrosum
The loss circulation materials such as powder, fast dry essence, 801 sealing agents, the quick water-stop of M131, this kind of material individually to process, at the scene with cement,
Water mixes and stirs into loss circulation material, and permeable pressure is relatively low, and rate of set is slow, bad adhesion, in-convenience in use.The organic coagulant of cement one
Class, this kind of material, with ordinary cement as base material, mixes a certain proportion of organic solution, for fatty acid metal salts, synthetic resin breast
The loss circulation material such as liquid and water-soluble resin, the advantage of this kind of material is that setting time is fast, but expensive, performance less stable,
Poor durability, not acid-alkali-corrosive-resisting, the most aging, the life-span is short.Synthesis loss circulation material class, this kind of material is with ordinary cement as base
Material, adds the commercialization loss circulation material that the waterproof masterbatch of specialty inorganic etc. mixes.This kind of condensation of materials time is the slowest, right
In retention of excessive fluid and the bad process of seepage sprayed into, it is only applicable to large area benefit of wiping one's face moist, that immerse and oozes.At present, on domestic market
What effectiveness comparison was good is inorganic quick Tempojel, and this material is to use multi mineral to be calcined under the high temperature conditions, is formed with fluorine aluminum
Hydrochlorate is the grog of Main Ingredients and Appearance, more levigate with other mineral makes.But its anti-permeability performance, adhesive property are poor, condense
Speed is slow, poor durability.
Summary of the invention
The technical problem to be solved: poor for current anti-leakage blocking agent anti-permeability performance, adhesive property, condenses speed
Degree is slow, the drawback of poor durability, it is provided that it is anti-with the crosslinking of two (triethanolamine) metatitanic acid diisopropyl ester that one takes hydroxypropyl guar gum
Should, prepare gel, drying, pulverize and sieve dry gel particle is standby, then take bombax cotton, carry out surface with styrene and change
Property, strengthening bombax cotton oil absorption, to obtain innovation wood cotton fiber standby, then the material grinding and sieving such as meerschaum and calcium oxide is obtained
Mixed-powder, is mixed to prepare anti-leakage blocking agent with other materials such as standby bombax cotton cement and standby dry gel particle, cement
Method.Preparation process of the present invention is simple, and products obtained therefrom adhesive property is good, and rate of set is fast；Make full use of xerogel water conservation material
Material, modified kapok fiber oil absorption material, mix powder prepare anti-leakage blocking agent with cementitious composite, with strong points, effectively solve
Its anti-permeability performance difference and problem of poor durability.
For solving above-mentioned technical problem, the present invention uses the technical scheme as described below to be:
(1) weigh 1～2g hydroxypropyl guar gum and 0.4～0.8g bis-(triethanolamine) metatitanic acid diisopropyl ester respectively, join 200
～in 250mL deionized water, it is stirred at room temperature cross-linking reaction 2～4h, form gel after reaction, gel put in baking oven,
Being dried 18～20h at a temperature of 70～80 DEG C, crushed after being dried, 20～30 mesh sieves, obtain dry gel particle excessively, standby；
(2) weighing 8～10g bombax cottons, by solid-to-liquid ratio 1:10 and N, N-dimethyl methyl acid amide mixes, obtains mixed liquor, wherein
Add mixed liquor quality 8～10% styrene, put in water-bath, after being warming up to 60～70 DEG C, add mixed liquor quality 1～3%
Benzoyl peroxide, regulates pH to 8.0～8.5 with mass fraction 15% sodium hydroxide solution, and stirring reaction 3～5h, reaction terminates
Rear centrifugation, obtains precipitate, after being washed with deionized 3～5 times, puts in baking oven, at 60～70 DEG C dry 5～6h, i.e.
Available innovation wood cotton fiber, standby；
(3) weigh respectively 3～5g meerschaums, 10～15g calcium oxide, 10～20g nano-calcium carbonate, 25～40g quartz sand and 5～
10g sodium bentonite, join in ultrafine crusher pulverize, cross 180～200 mesh sieves, obtain mix powder；
(4) count by weight, choose standby dry solidifying of 40～50 part 200～220 mesh cement, 15～20 parts of steps (1) respectively
Glue granule, the innovation wood cotton fiber that 12～15 parts of steps (2) are standby, 20～30 parts of said mixture powder, 3～5 parts of sulfonation wood
Quality, 3～5 parts of ECR glass fibre and 70～80 parts of water, first by deionization cement, innovation wood cotton fiber, mix powder, sulphur
Change lignin, ECR glass fibre and deionized water mixing, under 600～700r/min rotating speeds, stir 1～2h, add dry solidifying
Glue granule, stirring mixing 10～20min, anti-leakage blocking agent.
The application process of the present invention: first rinse with water after levelling for infiltration basal plane cleaning, keep basal plane to moisten, by the present invention
The anti-leakage blocking agent scraper plate prepared is evenly applied on basal plane, and is compacted floating, and coating thickness is 4～6mm, treats that it hardens
After, squirt with water, then be coated, be compacted floating, so circulate, until producing without infiltration phenomenon, then wet curing 2～3 days
?.This sealing agent is good with basal plane associativity, and rate of set is fast, is firmly bonded, and adhesive strength reaches 2.56～2.82MPa, impervious
Intensity reaches 3.56～4.28MPa, and good endurance is worthy to be popularized and uses.
The present invention is compared with additive method, and Advantageous Effects is:
(1) preparation process of the present invention is simple, and products obtained therefrom adhesive property is good, and rate of set is fast；
(2) make full use of xerogel, innovation wood cotton fiber, mix powder and cementitious composite and prepare anti-leakage blocking agent, specific aim
By force, it is effectively increased its anti-permeability performance, enhances its durability.
Detailed description of the invention
Weigh 1～2g hydroxypropyl guar gum and 0.4～0.8g bis-(triethanolamine) metatitanic acid diisopropyl ester the most respectively, add
In 200～250mL deionized waters, it is stirred at room temperature cross-linking reaction 2～4h, forms gel after reaction, gel is put into baking
In case, being dried 18～20h at a temperature of 70～80 DEG C, crushed after being dried, 20～30 mesh sieves, obtain dry gel particle excessively, standby；So
After weigh 8～10g bombax cottons, by solid-to-liquid ratio 1:10 and N, N-dimethyl methyl acid amide mixes, and obtains mixed liquor, is added thereto to mix
Close liquid quality 8～10% styrene, put in water-bath, after being warming up to 60～70 DEG C, add mixed liquor quality 1～3% peroxidating
Benzoyl, regulates pH to 8.0～8.5, stirring reaction 3～5h with mass fraction 15% sodium hydroxide solution, and reaction is centrifugal after terminating
Separate, obtain precipitate, after being washed with deionized 3～5 times, put in baking oven, at 60～70 DEG C dry 5～6h, the most available
Innovation wood cotton fiber, standby；Weigh the most respectively 3～5g meerschaums, 10～15g calcium oxide, 10～20g nano-calcium carbonate, 25～
40g quartz sand and 5～10g sodium bentonites, join in ultrafine crusher pulverize, cross 180～200 mesh sieves, obtain mixture powder
End；Finally count by weight, choose respectively 40～50 part 200～220 mesh cement, 15～20 parts of standby dry gel particles,
12～15 parts of standby innovation wood cotton fibers, 20～30 parts of said mixture powder, 3～5 parts of lignosulfonates, 3～5 parts of ECR
Glass fibre and 70～80 parts of deionized waters, first by cement, innovation wood cotton fiber, mix powder, lignosulfonate, ECR glass
Glass fiber and deionized water mixing, stir 1～2h under 600～700r/min rotating speeds, adds dry gel particle, stirring mixing
10～20min, anti-leakage blocking agent.
Example 1
Weigh 1g hydroxypropyl guar gum and 0.4g bis-(triethanolamine) metatitanic acid diisopropyl ester the most respectively, join 200mL go from
In sub-water, it is stirred at room temperature cross-linking reaction 2h, forms gel after reaction, gel is put in baking oven, dry at a temperature of 70 DEG C
Dry 18h, crushed after being dried, cross 20 mesh sieves, obtain dry gel particle, standby；Then weigh 8g bombax cotton, by solid-to-liquid ratio 1:10 with
N, N-dimethyl methyl acid amide mixes, and obtains mixed liquor, is added thereto to mixed liquor quality 8% styrene, puts in water-bath, heats up
After 60 DEG C, add mixed liquor quality 1% benzoyl peroxide, regulate pH to 8.0 with mass fraction 15% sodium hydroxide solution, stir
Mixing reaction 3h, reaction terminates rear centrifugation, obtains precipitate, after being washed with deionized 3 times, put in baking oven, does at 60 DEG C
Dry 5h, i.e. can get innovation wood cotton fiber, standby；Weigh 3g meerschaum, 10g calcium oxide, 10g nano-calcium carbonate, 25g the most respectively
Quartz sand and 5g sodium bentonite, join in ultrafine crusher pulverize, cross 180 mesh sieves, obtain mix powder；The most by weight
Number meter, choose respectively 40 part of 200 mesh cement, 15 parts of standby dry gel particles, 12 parts of standby innovation wood cotton fibers, 20 parts
Said mixture powder, 3 parts of lignosulfonates, 3 parts of ECR glass fibre and 70 parts of deionized waters, first by cement, modified kapok fibre
Dimension, mix powder, lignosulfonate, ECR glass fibre and deionized water mixing, stir 1h under 600r/min rotating speed, then
Add dry gel particle, stirring mixing 10min, anti-leakage blocking agent.
First rinse with water after levelling for infiltration basal plane cleaning, keep basal plane to moisten, the anti-leakage blocking agent present invention prepared
Being evenly applied on basal plane with scraper plate, and be compacted floating, coating thickness is 4mm, after it hardens, squirts with water, then is coated with
Cover, be compacted floating, so circulate, until producing without infiltration phenomenon, then wet curing 2 days.This sealing agent is combined with basal plane
Property good, rate of set is fast, is firmly bonded, and adhesive strength reaches 2.56MPa, and anti-permeability strength reaches 3.56MPa, good endurance, is worth pushing away
Extensively with use.
Example 2
Weigh 2g hydroxypropyl guar gum and 0.6g bis-(triethanolamine) metatitanic acid diisopropyl ester the most respectively, join 225mL go from
In sub-water, it is stirred at room temperature cross-linking reaction 3h, forms gel after reaction, gel is put in baking oven, dry at a temperature of 75 DEG C
Dry 19h, crushed after being dried, cross 25 mesh sieves, obtain dry gel particle, standby；Then weigh 9g bombax cotton, by solid-to-liquid ratio 1:10 with
N, N-dimethyl methyl acid amide mixes, and obtains mixed liquor, is added thereto to mixed liquor quality 9% styrene, puts in water-bath, heats up
After 65 DEG C, add mixed liquor quality 2% benzoyl peroxide, regulate pH to 8.3 with mass fraction 15% sodium hydroxide solution, stir
Mixing reaction 4h, reaction terminates rear centrifugation, obtains precipitate, after being washed with deionized 4 times, put in baking oven, does at 65 DEG C
Dry 6h, i.e. can get innovation wood cotton fiber, standby；Weigh 4g meerschaum, 13g calcium oxide, 15g nano-calcium carbonate, 32g the most respectively
Quartz sand and 8g sodium bentonite, join in ultrafine crusher pulverize, cross 190 mesh sieves, obtain mix powder；The most by weight
Number meter, choose respectively 45 part of 210 mesh cement, 18 parts of standby dry gel particles, 14 parts of standby innovation wood cotton fibers, 25 parts
Said mixture powder, 4 parts of lignosulfonates, 4 parts of ECR glass fibre and 75 parts of deionized waters, first by cement, modified kapok fibre
Dimension, mix powder, lignosulfonate, ECR glass fibre and deionized water mixing, stir 2h under 650r/min rotating speed, then
Add dry gel particle, stirring mixing 15min, anti-leakage blocking agent.
First rinse with water after levelling for infiltration basal plane cleaning, keep basal plane to moisten, the anti-leakage blocking agent present invention prepared
Being evenly applied on basal plane with scraper plate, and be compacted floating, coating thickness is 5mm, after it hardens, squirts with water, then is coated with
Cover, be compacted floating, so circulate, until producing without infiltration phenomenon, then wet curing 3 days.This sealing agent is combined with basal plane
Property good, rate of set is fast, is firmly bonded, and adhesive strength reaches 2.69MPa, and anti-permeability strength reaches 3.92MPa, good endurance, is worth pushing away
Extensively with use.
Example 3
Weigh 2g hydroxypropyl guar gum and 0.8g bis-(triethanolamine) metatitanic acid diisopropyl ester the most respectively, join 250mL go from
In sub-water, it is stirred at room temperature cross-linking reaction 4h, forms gel after reaction, gel is put in baking oven, dry at a temperature of 80 DEG C
Dry 20h, crushed after being dried, cross 30 mesh sieves, obtain dry gel particle, standby；Then 10g bombax cotton is weighed, by solid-to-liquid ratio 1:10
Mix with N, N-dimethyl methyl acid amide, obtain mixed liquor, be added thereto to mixed liquor quality 10% styrene, put in water-bath, rise
After warm to 70 DEG C, add mixed liquor quality 3% benzoyl peroxide, regulate pH to 8.5 with mass fraction 15% sodium hydroxide solution,
Stirring reaction 5h, reaction terminates rear centrifugation, obtains precipitate, after being washed with deionized 5 times, put in baking oven, at 70 DEG C
It is dried 6h, i.e. can get innovation wood cotton fiber, standby；Weigh the most respectively 5g meerschaum, 15g calcium oxide, 20g nano-calcium carbonate,
40g quartz sand and 10g sodium bentonite, join in ultrafine crusher pulverize, cross 200 mesh sieves, obtain mix powder；Finally press
Parts by weight meter, choose respectively 50 part of 220 mesh cement, 20 parts of standby dry gel particles, 15 parts of standby innovation wood cotton fibers,
30 parts of said mixture powder, 5 parts of lignosulfonates, 5 parts of ECR glass fibre and 80 parts of deionized waters, first by cement, innovation wood
Cotton fiber, mix powder, lignosulfonate, ECR glass fibre and deionized water mixing, stir under 700r/min rotating speed
2h, adds dry gel particle, stirring mixing 20min, anti-leakage blocking agent.
First rinse with water after levelling for infiltration basal plane cleaning, keep basal plane to moisten, the anti-leakage blocking agent present invention prepared
Being evenly applied on basal plane with scraper plate, and be compacted floating, coating thickness is 6mm, after it hardens, squirts with water, then is coated with
Cover, be compacted floating, so circulate, until producing without infiltration phenomenon, then wet curing 3 days.This sealing agent is combined with basal plane
Property good, rate of set is fast, is firmly bonded, and adhesive strength reaches 2.82MPa, and anti-permeability strength reaches 4.28MPa, good endurance, is worth pushing away
Extensively with use.
Claims (1)
1. the preparation method of an anti-leakage blocking agent, it is characterised in that concrete preparation process is:
(1) weigh 1～2g hydroxypropyl guar gum and 0.4～0.8g bis-(triethanolamine) metatitanic acid diisopropyl ester respectively, join 200
～in 250mL deionized water, it is stirred at room temperature cross-linking reaction 2～4h, form gel after reaction, gel put in baking oven,
Being dried 18～20h at a temperature of 70～80 DEG C, crushed after being dried, 20～30 mesh sieves, obtain dry gel particle excessively, standby；
(2) weighing 8～10g bombax cottons, by solid-to-liquid ratio 1:10 and N, N-dimethyl methyl acid amide mixes, obtains mixed liquor, wherein
Add mixed liquor quality 8～10% styrene, put in water-bath, after being warming up to 60～70 DEG C, add mixed liquor quality 1～3%
Benzoyl peroxide, regulates pH to 8.0～8.5 with mass fraction 15% sodium hydroxide solution, and stirring reaction 3～5h, reaction terminates
Rear centrifugation, obtains precipitate, after being washed with deionized 3～5 times, puts in baking oven, at 60～70 DEG C dry 5～6h, i.e.
Available innovation wood cotton fiber, standby；
(3) weigh respectively 3～5g meerschaums, 10～15g calcium oxide, 10～20g nano-calcium carbonate, 25～40g quartz sand and 5～
10g sodium bentonite, join in ultrafine crusher pulverize, cross 180～200 mesh sieves, obtain mix powder；
(4) count by weight, choose standby dry solidifying of 40～50 part 200～220 mesh cement, 15～20 parts of steps (1) respectively
Glue granule, the innovation wood cotton fiber that 12～15 parts of steps (2) are standby, 20～30 parts of said mixture powder, 3～5 parts of sulfonation wood
Quality, 3～5 parts of ECR glass fibre and 70～80 parts of deionized waters, first by cement, innovation wood cotton fiber, mix powder, sulphur
Change lignin, ECR glass fibre and deionized water mixing, under 600～700r/min rotating speeds, stir 1～2h, add dry solidifying
Glue granule, stirring mixing 10～20min, anti-leakage blocking agent.
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| CN201610678247.8A CN106277989A (en) | 2016-08-17 | 2016-08-17 | A kind of preparation method of anti-leakage blocking agent |
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| CN201610678247.8A CN106277989A (en) | 2016-08-17 | 2016-08-17 | A kind of preparation method of anti-leakage blocking agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115449132A (en) * | 2022-09-29 | 2022-12-09 | 漯河市罗弗文具制造有限公司 | Environment-friendly boron-free instant crystal mud powder and preparation method thereof |
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| CN103820088A (en) * | 2013-12-10 | 2014-05-28 | 中国石油集团渤海钻探工程有限公司 | Leakage-stopping agent with sustainable expansibility |
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| CN105086967A (en) * | 2015-05-22 | 2015-11-25 | 中国石油天然气股份有限公司 | Channeling-preventing and blocking agent and construction method for blocking and blocking channeling by using same |
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|---|---|---|---|---|
| CN101519585A (en) * | 2009-03-31 | 2009-09-02 | 荆州市弘利化工科技有限公司 | Shearing cross-linking sensitive plugging agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115449132A (en) * | 2022-09-29 | 2022-12-09 | 漯河市罗弗文具制造有限公司 | Environment-friendly boron-free instant crystal mud powder and preparation method thereof |
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Application publication date: 20170104 |