CN107778397A - The water-swellable hermetic seal material and preparation method of a kind of double gel structures - Google Patents
The water-swellable hermetic seal material and preparation method of a kind of double gel structures Download PDFInfo
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- CN107778397A CN107778397A CN201711034824.0A CN201711034824A CN107778397A CN 107778397 A CN107778397 A CN 107778397A CN 201711034824 A CN201711034824 A CN 201711034824A CN 107778397 A CN107778397 A CN 107778397A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/04—Acids; Metal salts or ammonium salts thereof
- C08F120/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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Abstract
The invention discloses a kind of water-swellable hermetic seal material of double gel structures and preparation method, the water-swellable hermetic seal material of double gel structures is by introducing hydrated calcium silicate gel in high water absorbent resin gel structure, forming the double gel structures of interpenetrating networks and be prepared.Its operation principle is：Realized using the performance characteristics of super absorbent resin water-swellable " with water sealing ", processing interface organic is realized using the compatibility of hydrated calcium silicate and cement concrete base material.Its performance advantage is：Interface is avoided because stripping causes the risk of water slop failure；Handled suitable for static and dynamic crack hermetic seal；Formed by polymerisation in solution mode, the in-situ treatment of micro-cracks can be realized.
Description
Technical field
The invention belongs to concrete structure crack seepage-stop technique field in civil engineering, and in particular to a kind of double gels
The water-swellable hermetic seal material and preparation method of structure.
Background technology
Cement concrete is widely used in the every field of civil engineering as large type building structural materials.Cement mixes
After solidifying soil pours, due to chemical shrinkage, plastic shrinkage, dry and wet deformation and temperature deformation, it is inevitably generated various contractions and splits
Seam.Meanwhile according to design requirement, build joint is also often set, such as construction joint, seam or expansion joint in concrete structure.It is above-mentioned
If due in crack caused by deformation or design the build joint that sets intentionally can not timely and effective encapsulation process, often can after meeting water
Cause existing building structure leakage problems occur, gently then influence use quality, it is heavy then produce serious engineering accident.
The material of processing cement concrete constructions contraction fissure or build joint leakage problems mainly has at present：Superfine cement base
Grouting material, polyurethanes sealing compound, acrylic compounds sealing compound, polyvinyl chloride sealing compound, polysulfide class sealing compound and water-swellable
Rubber water-proof bar etc..There is performance deficiency in above-mentioned common water stop sealing material, after being hardened such as superfine cement base grouting material just mostly
Phase has higher sealing to water effect, but equally exists contraction and secondary crack occur and ultimately result in secondary seepage problem；
Polyurethanes sealing compound, acrylic compounds sealing compound, polyvinyl chloride sealing compound, polysulfide class sealing compound etc. are used as flexible sealing sealing
There is some superiority in material process crack, due to hydrophilic, hydrophobic sex differernce between concrete substrate be present, often occurs during use
Peeling between property interface and lose water-stagnating effect；The characteristics of water-swelling rubber water bar maximum is to be not only suitable for static state to split
Seam is applied to dynamic crack again, but because water-swelling rubber water bar is mostly putty type or product type, often through embedded
Mode seals existing crack or build joint, and sealing rod unavoidably has gap with slotted wall, therefore hermetic seal effect is limited.This
Outside, above-mentioned hermetic seal material due to viscosity (denseness) greatly, rheological characteristic, poor permeability, be not suitable at the sealing of micro-cracks
Reason.
The content of the invention
To solve problems of the prior art, it is an object of the invention to provide a kind of chance water of double gel structures is swollen
Swollen hermetic seal material and preparation method, the present invention are applied to the processing of the static and hermetic seal of dynamic crack or build joint, energy
Enough intensive treatment cracks or build joint interface fusion, avoid interface from causing the risk of water slop failure because of stripping.
The purpose of the present invention is achieved through the following technical solutions：
A kind of water-swellable hermetic seal material of double gel structures, is made up, component A is high water absorption of component A and B component
The property resin monomer aqueous solution；B component is made up of clinker, crosslinking agent, initiator and stabilizer；According to the mass fraction, it is high to inhale
Water-base resin monomer solution is 100 parts；Clinker is 10~60 parts, and crosslinking agent is 1~3 part, and initiator is 0.1~0.4,
Stabilizer is 0.1~0.3 part.
The component A super absorbent resin monomer solution is the acrylic monomers aqueous solution that part neutralizes, wherein, neutralize
Preceding acrylic acid mass percent concentration is 30%, and nertralizer is sodium hydroxide, and degree of neutralization is 70~90.
The preparation process of component A is as follows：By in acrylic acid solution deionized water, acrylic acid mass percent concentration is controlled；
According to the degree of neutralization of setting, appropriate sodium hydroxide is added, is sufficiently stirred and is cooled to room temperature and obtain component A.
Clinker in the B component is silicate cement clinker, is calculated in mass percent, the ore deposit in silicate cement clinker
Thing is configured to：Tricalcium silicate 35~65%, dicalcium silicate 15%~35%, tricalcium aluminate 8%~12%, tetra calcium aluminoferrite 10%
~15%；500~600m of specific surface area of silicate cement clinker2/kg。
Crosslinking agent in the B component is sorbierite or white powder, and the purity of sorbierite or white powder is not less than
99%.
Initiator in the B component is redox initiation system, and the oxidant of redox initiation system is over cure
Sour ammonium, reducing agent are sodium hydrogensulfite, and the mol ratio of ammonium persulfate and sodium hydrogensulfite is 1:1.
Stabilizer in the B component is hydroxypropyl methyl cellulose ether, and hydroxypropyl methyl cellulose ether obtains viscosity and is
75000~100000mp.s.
The preparation process of B component is as follows：By certain mass number by Portland clinker, initiator, crosslinking agent and steady
Determine agent to be mixed evenly to obtain B component.
A kind of preparation method of the water-swellable hermetic seal material of double gel structures, is carried out as follows：
In terms of mass fraction, the B component of certain mass number is added in 100 parts of component A, in 500~1000r/
3~5min is stirred under min stir speed (S.S.)s, obtains the water-swellable hermetic seal material slurry of double gel structures, temperature 25~
In the range of 45 DEG C, the slurries pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
The present invention has the advantages that：
The present invention is introduced by clinker, crosslinking agent, initiator and stabilizer system in high water absorbent resin gel structure
Into gel B component, component A and B component can form the double gel structures of interpenetrating networks；With reference to super absorbent resin water-swellable
Performance characteristics realize " with water sealing ", realize that processing interface is organic viscous using the compatibility of B component and cement concrete base material
Close.The technical advantages of the present invention are that：Super absorbent resin water-swellable, suitable for the close of static and dynamic crack or build joint
Sealing water process；The introducing of B component, processing crack or build joint interface fusion are enhanced, avoids interface because stripping causes
The risk of water slop failure；The hermetic seal material of the present invention is formed by polymerisation in solution mode, can realize the original position of micro-cracks
Processing.
Embodiment
With reference to embodiment, the present invention is further described, as described below, be only to presently preferred embodiments of the present invention and
, the not limitation to other forms of the present invention, any person skilled in the art possibly also with the disclosure above technology
Content is changed to the equivalent example changed on an equal basis.It is every real without departing from the present invention program content, the technology of the foundation present invention
Any simple modification or equivalent variations that example of verifying is made, all fall within protection scope of the present invention.
The water-swellable hermetic seal material of double gel structures of the present invention is made up of component A and B component.Component A is former
Material composition is super absorbent resin monomer solution；B component former material composition is clinker, crosslinking agent, initiator and stably
Agent.According to the mass fraction, the acrylic monomers solution that the part that component A is 100 parts neutralizes；B component is by 10~60 parts of cement
Clinker, 1~3 part of crosslinking agent, 0.1~0.4 initiator and 0.1~0.3 part of stabilizer are made.
Wherein, component A super absorbent resin monomer solution is the acrylic monomers aqueous solution that part neutralizes, wherein, in
It is 30% with preceding acrylic acid mass percent concentration, nertralizer is sodium hydroxide, and degree of neutralization is 70~90.
Clinker in B component is silicate cement clinker, is calculated in mass percent, essential mineral is configured to：Silicic acid three
Calcium 35~65%, dicalcium silicate 15%~35%, tricalcium aluminate 8%~12%, tetra calcium aluminoferrite 10%~15%；Silicate cement
The specific surface area of clinker is 500~600m2/kg；
Crosslinking agent is sorbierite, and sorbierite is white powder, and purity is not less than 99%；
Initiator is redox initiation system, and the oxidant of redox initiation system is ammonium persulfate, and reducing agent is
The mol ratio of sodium hydrogensulfite, ammonium persulfate and sodium hydrogensulfite is 1:1；
Stabilizer is hydroxypropyl methyl cellulose ether, the viscosity of hydroxypropyl methyl cellulose ether for 75000~
100000mp.s；
The preparation method of the water-swellable hermetic seal material of double gel structures of the present invention comprises the following steps：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, the Portland clinker of certain mass number, initiator, crosslinking agent, stabilizer are mixed equal
It is even to obtain B component；
Step 3, the B component of certain mass number is added in component A, under 500~1000r/min stir speed (S.S.)s
3~5min is stirred, the water-swellable hermetic seal material slurry of double gel structures is obtained, injects slurries under normal pressure or pressure
In accessing pending water cement concrete crack or build joint, control environment temperature is triggered by original position and polymerize in the range of 25~45 DEG C
Form the water-swellable hermetic seal material of double gel structures.
It is double solidifying to form interpenetrating networks by introducing hydrated calcium silicate gel in high water absorbent resin gel structure by the present invention
Plastic structure；Realized with reference to the performance characteristics of super absorbent resin water-swellable " with water sealing ", utilize hydrated calcium silicate and cement
The compatibility of concrete substrate realizes processing interface organic.The technical advantages of the present invention are that：Super absorbent resin meets water
Expansion, handled suitable for static and dynamic crack (or build joint) hermetic seal；The introducing of hydrated calcium silicate gel, is enhanced
Crack (or build joint) interface fusion is handled, avoids interface because stripping causes the risk of water slop failure；Invent the sealing
Sealing material is formed by polymerisation in solution mode, can realize the in-situ treatment of micro-cracks.
Embodiment 1
In the water-swellable hermetic seal material of double gel structures of the present embodiment, in terms of mass fraction, component A 100
Part；In B component：Clinker is 10 parts, and crosslinking agent is 1.5 parts, and initiator is 0.15 part, and stabilizer is 0.3 part.
The preparation process of the water-swellable hermetic seal material of double gel structures is carried out as follows：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization 70, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, by 10 parts of silicate cement clinker, 1.5 parts of sorbierite, 0.15 part of initiator, 0.3 part of hydroxypropyl
Ylmethyl cellulose ether is mixed evenly to obtain B component；
Step 3,11.95 parts of B component is added in 100 parts of component A, 3~5min of high-speed stirred, obtained double solidifying
The water-swellable hermetic seal material slurry of plastic structure, slurries are injected in 0.2mm through cracks under normal pressure or pressure, control
35 DEG C of environment temperature, pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
Double gel seal sealing material Specifeca tion speeifications are as follows obtained by the present embodiment：Complete gelation time is 35min,
72h water swellings multiplying power (water swelling multiplying power specimen size is 20mm × 20mm × 2mm) is 800%, gel elongation at break
For 350%, the intensity of the compression of gel 50% is 200kPa, and initial water resistant osmotic pressure is 0.25MPa, 25 drying and watering cycles
Water resistant osmotic pressure is 0.20MPa afterwards.
Embodiment 2
In the water-swellable hermetic seal material of double gel structures of the present embodiment, in terms of mass fraction, component A 100
Part；In B component：Clinker 20 is part, and crosslinking agent is 2.0 parts, and initiator is 0.3 part, and stabilizer is 0.2 part.
The preparation process of the water-swellable hermetic seal material of double gel structures is carried out as follows：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization 80, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, by 20 parts of silicate cement clinker, 2.0 parts of sorbierite, 0.3 part of initiator, 0.2 part of hydroxypropyl
Methyl cellulose ether is mixed evenly to obtain B component；
Step 3,22.5 parts of B component is added in 100 parts of component A, 3~5min of high-speed stirred, obtains double gels
The water-swellable hermetic seal material slurry of structure, slurries are injected in 0.2mm through cracks under normal pressure or pressure, control ring
25 DEG C of border temperature, pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
Double gel seal sealing material Specifeca tion speeifications are as follows obtained by the present embodiment：Complete gelation time is 35min,
72h water swellings multiplying power is 650% (water swelling multiplying power specimen size is 20mm × 20mm × 2mm), gel elongation at break
For 190%, the intensity of the compression of gel 50% is 950kPa, and initial water resistant osmotic pressure is 0.25MPa, 25 drying and watering cycles
Water resistant osmotic pressure is 0.20MPa afterwards.
Embodiment 3
In the water-swellable hermetic seal material of double gel structures of the present embodiment, in terms of mass fraction, component A 100
Part；In B component：Clinker 30 is part, and crosslinking agent is 2.5 parts, and initiator is 0.3 part, and stabilizer is 0.2 part.
The preparation process of the water-swellable hermetic seal material of double gel structures is carried out as follows：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization 85, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, by 30 parts of silicate cement clinker, 2.5 parts of sorbierite, 0.3 part of initiator, 0.2 part of hydroxypropyl
Methyl cellulose ether is mixed evenly to obtain B component；
Step 3,34 parts of B component is added in 100 parts of component A, 3~5min of high-speed stirred, obtains double gel knots
The water-swellable hermetic seal material slurry of structure, slurries are injected in 1.0mm through cracks under normal pressure or pressure, control environment
30 DEG C of temperature, pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
Double gel seal sealing material Specifeca tion speeifications are as follows obtained by the present embodiment：Complete gelation time is 30min,
72h water swellings multiplying power is 400% (water swelling multiplying power specimen size is 20mm × 20mm × 2mm), gel elongation at break
For 220%, the intensity of the compression of gel 50% is 1020kPa, and initial water resistant osmotic pressure is 0.28MPa, and 25 times dry and wet is followed
Water resistant osmotic pressure is 0.22MPa after ring.
Embodiment 4
In the water-swellable hermetic seal material of double gel structures of the present embodiment, in terms of mass fraction, component A 100
Part；In B component：Clinker 40 is part, and crosslinking agent 2.5 is part, and initiator 0.3 is part, and stabilizer is 0.25 part.
The preparation process of the water-swellable hermetic seal material of double gel structures is carried out as follows：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization 90, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, by 40 parts of silicate cement clinker, 2.5 parts of sorbierite, 0.3 part of initiator, 0.25 part of hydroxypropyl
Ylmethyl cellulose ether is mixed evenly to obtain B component；
Step 3,43.05 parts of B component is added in 100 parts of component A, 3~5min of high-speed stirred, obtained double solidifying
The water-swellable hermetic seal material slurry of plastic structure, slurries are injected in 5.0mm through cracks under normal pressure or pressure, control
35 DEG C of environment temperature, pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
Double gel seal sealing material Specifeca tion speeifications are as follows obtained by the present embodiment：Complete gelation time is 20min,
72h water swellings multiplying power is 370% (water swelling multiplying power specimen size is 20mm × 20mm × 2mm), gel elongation at break
For 180%, the intensity of the compression of gel 50% is 1050kPa, and initial water resistant osmotic pressure is 0.20MPa, and 25 times dry and wet is followed
Water resistant osmotic pressure is 0.20MPa after ring.
Embodiment 5
In the water-swellable hermetic seal material of double gel structures of the present embodiment, in terms of mass fraction, component A 100
Part；In B component：Clinker 50 is part, and crosslinking agent is 3.0 parts, and initiator is 0.35 part, and stabilizer is 0.3 part.
The preparation process of the water-swellable hermetic seal material of double gel structures is carried out as follows：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization 90, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, by 50 parts of silicate cement clinker, 3.0 parts of sorbierite, 0.35 part of initiator, 0.3 part of hydroxypropyl
Ylmethyl cellulose ether is mixed evenly to obtain B component；
Step 3,53.85 parts of B component is added in 100 parts of component A, 3~5min of high-speed stirred, obtained double solidifying
The water-swellable hermetic seal material slurry of plastic structure, slurries are injected in 10.0mm through cracks under normal pressure or pressure, control
30 DEG C of environment temperature processed, pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
Double gel seal sealing material Specifeca tion speeifications are as follows obtained by the present embodiment：Complete gelation time is 25min,
72h water swellings multiplying power is 300% (water swelling multiplying power specimen size is 20mm × 20mm × 2mm), gel elongation at break
For 170%, the intensity of the compression of gel 50% is 1250kPa, and initial water resistant osmotic pressure is 0.18MPa, and 25 times dry and wet is followed
Water resistant osmotic pressure is 0.15MPa after ring.
Embodiment 6
In the water-swellable hermetic seal material of double gel structures of the present embodiment, in terms of mass fraction, component A 100
Part；In B component：Clinker is 60 parts, and crosslinking agent is 3.0 parts, and initiator is 0.4 part, and stabilizer is 0.3 part.
The preparation process of the water-swellable hermetic seal material of double gel structures is carried out as follows：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization 90, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, by 60 parts of silicate cement clinker, 3.0 parts of sorbierite, 0.4 part of initiator, 0.3 part of hydroxypropyl
Methyl cellulose ether is mixed evenly to obtain B component；
Step 3,63.7 parts of B component is added in 100 parts of component A, 3~5min of high-speed stirred, obtains double gels
The water-swellable hermetic seal material slurry of structure, slurries are injected in 20.0mm through cracks under normal pressure or pressure, control
30 DEG C of environment temperature, pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
Double gel seal sealing material Specifeca tion speeifications are as follows obtained by the present embodiment：Complete gelation time is 20min,
72h water swellings multiplying power is 280%, and gel elongation at break is that 150% (water swelling multiplying power specimen size is 20mm × 20mm
× 2mm), the intensity of the compression of gel 50% is 1750kPa, and initial water resistant osmotic pressure is 0.10MPa, 25 drying and watering cycles
Water resistant osmotic pressure is 0.10MPa afterwards.
Embodiment 7
In the water-swellable hermetic seal material of double gel structures of the present embodiment, in terms of mass fraction, component A 100
Part；In B component：Clinker is 60 parts, and crosslinking agent is 1.0 parts, and initiator is 0.1 part, and stabilizer is 0.1 part.
The preparation process of the water-swellable hermetic seal material of double gel structures is carried out as follows：
Step 1, in acrylic acid solution deionized water, will control acrylic acid mass percent concentration is 30%；According to setting
Degree of neutralization 90, add appropriate sodium hydroxide, be sufficiently stirred and be cooled to room temperature and obtain component A；
Step 2, by 60 parts of silicate cement clinker, 1.0 parts of sorbierite, 0.1 part of initiator, 0.3 part of hydroxypropyl
Methyl cellulose ether is mixed evenly to obtain B component；
Step 3,61.4 parts of B component is added in 100 parts of component A, 3~5min of high-speed stirred, obtains double gels
The water-swellable hermetic seal material slurry of structure, slurries are injected in 20.0mm through cracks under normal pressure or pressure, control
45 DEG C of environment temperature, pass through the water-swellable hermetic seal material in situ for triggering polymerization to form double gel structures.
Double gel seal sealing material Specifeca tion speeifications are as follows obtained by the present embodiment：Complete gelation time is 30min,
72h water swellings multiplying power is 300% (water swelling multiplying power specimen size is 20mm × 20mm × 2mm), gel elongation at break
For 170%, the intensity of the compression of gel 50% is 1150kPa, and initial water resistant osmotic pressure is 0.12MPa, and 25 times dry and wet is followed
Water resistant osmotic pressure is 0.10MPa after ring.
Claims (8)
1. the water-swellable hermetic seal material of a kind of double gel structures, it is characterised in that according to the mass fraction, by following raw material
It is made：Super absorbent resin monomer solution is 100 parts；Clinker is 10~60 parts, and crosslinking agent is 1~3 part, and initiator is
0.1~0.4, stabilizer is 0.1~0.3 part.
2. the water-swellable hermetic seal material of a kind of double gel structures according to claim 1, it is characterised in that height is inhaled
Water-base resin monomer solution is the acrylic monomers aqueous solution that part neutralizes, wherein, acrylic acid mass percent is dense before neutralization
Spend for 30%, nertralizer is sodium hydroxide, and degree of neutralization is 70~90.
3. the water-swellable hermetic seal material of a kind of double gel structures according to claim 2, it is characterised in that height is inhaled
The preparation process of water-base resin monomer solution is as follows：By in acrylic acid solution deionized water, acrylic acid mass percent is controlled
Concentration；According to the degree of neutralization of setting, appropriate sodium hydroxide is added, is sufficiently stirred and is cooled to room temperature and obtain component A.
4. the water-swellable hermetic seal material of a kind of double gel structures according to claim 1, it is characterised in that described
Clinker is silicate cement clinker, is calculated in mass percent, the mineral in silicate cement clinker are configured to：Tricalcium silicate 35~
65%, dicalcium silicate 15%~35%, tricalcium aluminate 8%~12%, tetra calcium aluminoferrite 10%~15%；Silicate cement clinker
500~600m of specific surface area2/kg。
5. the water-swellable hermetic seal material of a kind of double gel structures according to claim 1, it is characterised in that described
Crosslinking agent is sorbierite, and the purity of sorbierite is not less than 99%.
6. the water-swellable hermetic seal material of a kind of double gel structures according to claim 1, it is characterised in that described
Initiator is redox initiation system, and the oxidant of redox initiation system is ammonium persulfate, and reducing agent is bisulfite
The mol ratio of sodium, ammonium persulfate and sodium hydrogensulfite is 1:1.
7. the water-swellable hermetic seal material of a kind of double gel structures according to claim 1, it is characterised in that described
Stabilizer is hydroxypropyl methyl cellulose ether, and it is 75000~100000mp.s that hydroxypropyl methyl cellulose ether, which obtains viscosity,.
A kind of 8. side for the water-swellable hermetic seal material for preparing double gel structures as described in claim 1-7 any one
Method, it is characterised in that：
It is added to after clinker, crosslinking agent, initiator and stabilizer are well mixed in super absorbent resin monomer solution,
3~5min is stirred under 500~1000r/min stir speed (S.S.)s, obtains the water-swellable hermetic seal material slurry of double gel structures
Liquid, in the range of 25~45 DEG C, the slurries are sealed temperature by the water-swellable in situ for triggering polymerization to form double gel structures
Sealing material.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109354472A (en) * | 2018-11-20 | 2019-02-19 | 长沙凯天工研院环保服务有限公司 | A kind of water-swellable curing materials |
| CN109400063A (en) * | 2018-11-19 | 2019-03-01 | 西安长大公路养护技术有限公司 | A kind of high polymer chance water sealing material and preparation method thereof for crack repairing |
| CN110028943A (en) * | 2019-03-27 | 2019-07-19 | 深圳地球村环保产业有限公司 | A kind of preparation method of the compound water shutoff agent of saline-alkali tolerant |
| CN112707670A (en) * | 2019-12-12 | 2021-04-27 | 科之杰新材料集团有限公司 | Cross-linked concrete viscosity regulator and preparation method thereof |
| CN113235806A (en) * | 2021-05-13 | 2021-08-10 | 江苏蓝圈新材料股份有限公司 | Reinforced concrete prefabricated part with enhanced plasticity and manufacturing method thereof |
| CN114230293A (en) * | 2021-12-16 | 2022-03-25 | 中煤科工集团西安研究院有限公司 | Inorganic-organic composite grouting water-stop material, preparation method and application thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109400063A (en) * | 2018-11-19 | 2019-03-01 | 西安长大公路养护技术有限公司 | A kind of high polymer chance water sealing material and preparation method thereof for crack repairing |
| CN109354472A (en) * | 2018-11-20 | 2019-02-19 | 长沙凯天工研院环保服务有限公司 | A kind of water-swellable curing materials |
| CN109354472B (en) * | 2018-11-20 | 2022-03-04 | 长沙工研院环保有限公司 | Water-swelling curing material |
| CN110028943A (en) * | 2019-03-27 | 2019-07-19 | 深圳地球村环保产业有限公司 | A kind of preparation method of the compound water shutoff agent of saline-alkali tolerant |
| CN112707670A (en) * | 2019-12-12 | 2021-04-27 | 科之杰新材料集团有限公司 | Cross-linked concrete viscosity regulator and preparation method thereof |
| CN112707670B (en) * | 2019-12-12 | 2022-04-22 | 科之杰新材料集团有限公司 | Cross-linked concrete viscosity regulator and preparation method thereof |
| CN113235806A (en) * | 2021-05-13 | 2021-08-10 | 江苏蓝圈新材料股份有限公司 | Reinforced concrete prefabricated part with enhanced plasticity and manufacturing method thereof |
| CN114230293A (en) * | 2021-12-16 | 2022-03-25 | 中煤科工集团西安研究院有限公司 | Inorganic-organic composite grouting water-stop material, preparation method and application thereof |
| CN114230293B (en) * | 2021-12-16 | 2023-01-31 | 中煤科工集团西安研究院有限公司 | Inorganic-organic composite grouting water-stop material, preparation method and application thereof |
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Application publication date: 20180309 |