CN107777941A - A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation - Google Patents
A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation Download PDFInfo
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- CN107777941A CN107777941A CN201610769523.1A CN201610769523A CN107777941A CN 107777941 A CN107777941 A CN 107777941A CN 201610769523 A CN201610769523 A CN 201610769523A CN 107777941 A CN107777941 A CN 107777941A
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- Prior art keywords
- water
- modified rubber
- rubber particle
- thermal insulation
- insulation mortar
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation, rubber grain is soaked in alkali lye, after rubbing and washing, filter, remove its hydrophobic top layer and show rough surface, then rinsed with clear water, after drying under water bath, the rubber grain after processing and coupling modifier are added in water bath containers and stirred, modified rubber particle is obtained after drying；Silicon ash and anti-crack water-proof agent are weighed, adds water to stir, adds waterglass, is well mixed；The modified rubber particle being prepared is poured into above-mentioned slurry to be mixed together and uniformly carries out interface processing, it is then that the pretreated modified rubber particle in interface is cool to half-dried, it is stand-by；After cement, flyash, sand, the pretreated modified rubber particle of S75 levels miberal powder and interface are mixed, it is stirred in concrete or mortar mixer；Water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose are added afterwards to be stirred again, produce the water-fast thermal insulation mortar of modified rubber particle.Modified rubber particle mortar water resistance that the present invention is prepared and extremely efficient in preserving heat.
Description
Technical field
The present invention relates to a kind of preparation method of water-fast thermal insulation mortar, more particularly to a kind of modified rubber particle preparation is water-fast
The method of thermal insulation mortar.
Background technology
Waste old is one kind of solid industrial discarded object, substantial amounts of useless with the development of rubber industry and auto industry
Old tire, rubber and its leftover bits are on the increase.Junked tire is degraded due to being difficult to, inflammable, and accumulation takes a large amount of soil
Ground, potential safety hazard is easily formed, cause serious environmental pollution.With the development of auto industry, the yield of junked tire
Increased with annual double-digit speed.2004, the yield of China's junked tire was more than 1.12 hundred million, it is contemplated that by 2010
Will more than 200,000,000, junked tire oneself turn into new solid pollution source.These tires not only cause huge threat to environment,
And it is a kind of serious wasting of resources.
Tool research shows that rubber polymer uses as concrete additive, can improve concrete performance, improves concrete
Attrition resistance energy, modulus of elasticity in comperssion with rubber increase and improve, and with rubber content change without obvious degradation trend；But rubber
Glue is filled into cement mortar as high-molecular organic material, because its surface is hydrophobicity, with inorganic coagulation material not phase
Mutually blending, it is more fragile with the interfacial adhesion of mortar matrix, weakness zone is formed, too low intensity can limit rubber aggregate significantly
The application of cement mortar and field.
According to the method being modified to rubber grain, the cementitiousness of rubber grain and inorganic coagulation material can be improved, but
It is not strong with the binding ability of coupling agent because rubber particle surface product is limited, cause modified effect bad, influence and mortar interface
Bonding.
Thermal insulation mortar is using cement as binder materials, is added with graininess light heat insulation material made of water mix, has matter
Gently, insulation, the characteristics of thermal insulation is good, but existing traditional mortar heat preserving and insulating material, such as：Polyphenyl particle heat-insulating mortar, pearl
Rock thermal insulation mortar etc., many defects are exposed in use, such as metope hollowing, ftractures, come off, causing wall
It is seepage, ventilative, the problems such as peeling off, more and more prominent in architectural engineering.In addition, most of thermal insulation mortar porosity is higher, protect
The pore structure of adiabator is divided into communicate-type, enclosed type, type semienclosed several, except the space majority of a small number of organic foam plastics is
Outside enclosed type, other insulation materials absorb water in itself regardless of pore structure, its material, plus the capillary percolation of interconnected pore
Water suction, therefore overall water absorption rate is very high.The intensity of material can be not only reduced after water suction, and its heat-insulating property can be substantially reduced.
The many mines in China are all perplexed by hot evil, and underground thermal pollution will eventually become the decision for restricting pit mining depth
Factor；The main reason for causing underground thermal pollution, first, pit mining depth big (generally -1000m or so at present), ground temperature are high
(45-50 degree), second, high-power mechanical-electrical equipment heat release needed for shaft production is big, radiating is difficult.Getting working face temperature is even high
Up to 33-36 degree, relative humidity is mostly 80%~90% or so, the relative humidity in main return and returnairshaft close to 100%,
In such a case, its thermal and insulating performance is soon lost after the water suction of in general thermal insulation mortar, therefore, the tradition of prior art
Mortar endangers the health of miner under hot and humid working environment, affects the normal production of mine.
The content of the invention
The technical problem to be solved in the present invention is to provide the modified rubber particle preparation that a kind of preparation method is simple, cost is low
The method of water-fast thermal insulation mortar.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation, methods described include：
(1) preparation of modified rubber particle
Rubber grain is soaked into 2-4 hours in alkali lye, after rubbing and washing, filter, remove its hydrophobic top layer show it is coarse
Surface, then rinsed 4-6 times with clear water, after drying under 75-85 DEG C of water bath, by the rubber grain after processing and coupling
Modifying agent is added in water bath containers and stirred, and modified rubber particle is obtained after drying；
The coupling modifier is prepared by following material, and its content of material is in terms of the mass percent for accounting for rubber grain
Calculate：
Coupling agent：6%~8%；
Initiator：0.4%~0.6%；
Water reducer：6%~8%；
Water：60%~70%；
(2) preparation of water-fast thermal insulation mortar
It is standby to weigh the modified rubber particle being prepared in step (1)；
Modified rubber granular mass 2-4% silicon ash and anti-crack water-proof agent is weighed, adds water to stir, adds water glass
Glass, it is well mixed；
Modified rubber particle is poured into above-mentioned slurry to be mixed together and uniformly carries out interface processing, then interface is pre-processed
The modified rubber particle crossed is cool to half-dried, stand-by；
After cement, flyash, sand, the pretreated modified rubber particle of S75 levels miberal powder and interface are mixed, in coagulation
It is stirred in soil or mortar mixer；
Water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose are added afterwards to be stirred again, and it is resistance to produce modified rubber particle
Water thermal insulation mortar；
The thermal insulation mortar being prepared is made up of following weight item：
In one embodiment of the invention, the coupling agent is VTES coupling agent.
In one embodiment of the invention, the initiator is peroxide initiator or azo initiator.
In one embodiment of the invention, the water reducer is naphthalene series high-efficiency water-reducing agent or high-efficiency water-reducing agent of poly-carboxylic acid.
In one embodiment of the invention, the alkali lye is the concentration 1-3% NaOH aqueous solution.
In one embodiment of the invention, cement, flyash, sand, S75 levels miberal powder and modified rubber particle are mixed
Mixing time afterwards is 25-35s.
In one embodiment of the invention, 45- is stirred after adding water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose
55s。
Pass through above-mentioned technical proposal, the beneficial effects of the invention are as follows：
The present invention improves cracking behavior and the drawing of mortar by the modified affinity for significantly improving rubber grain and mortar
Intensity is pulled out, the backfin ratio of mortar material is reduced, can be used as the cracking resistance component of mortar in architectural engineering；In addition, at by alkali lye
Reason can corrode rubber particle surface, increase specific surface area, so as to improve and the combination of coupling agent, improve modified effect, carry
The high shearing force of modified rubber particle and mortar.
The present invention can improve the crack resistance, intensity and the heat-insulating property under high humidity environment of thermal insulation mortar.
Thermal insulation mortar of the present invention overcomes that conventional vacuum mortar water absorption rate is very big, crack resistance is poor, weatherability is poor, receipts
Compression deformation it is big, easy to crack, easy occur hollowing phenomenon the defects of, rubber grain is made in waste old, is carried out with inorganic interfacial agents
Added after the pretreatment of interface in mortar, make the water absorption rate of mortar greatly reduce, this hot and humid for similar mine
During working environment, it can effectively improve working environment.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, enter below
One step illustrates the present invention.
Embodiment 1
A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation, methods described include：
(1) preparation of modified rubber particle
Rubber grain is soaked 2 hours in alkali lye, alkali lye is the NaOH aqueous solution of concentration 1%, after rubbing and washing, filter,
Remove its hydrophobic top layer and show rough surface, then rinsed 4 times with clear water, after drying under 75 DEG C of water bath, will be located
Rubber grain and coupling modifier after reason, which are added in water bath containers, to be stirred, and modified rubber particle is obtained after drying；
The coupling modifier is prepared by following material, and its content of material is in terms of the mass percent for accounting for rubber grain
Calculate：
Coupling agent：6%；
Initiator：0.4%；
Water reducer：6%；
Water：60%；
Coupling agent is VTES coupling agent；
Initiator is peroxide initiator or azo initiator；
Water reducer is naphthalene series high-efficiency water-reducing agent or high-efficiency water-reducing agent of poly-carboxylic acid；
(2) preparation of water-fast thermal insulation mortar
It is standby to weigh the modified rubber particle being prepared in step (1)；
The silicon ash and anti-crack water-proof agent of modified rubber granular mass 2% are weighed, adds water to stir, adds waterglass,
It is well mixed；
Modified rubber particle is poured into above-mentioned slurry to be mixed together and uniformly carries out interface processing, then interface is pre-processed
The modified rubber particle crossed is cool to half-dried, stand-by；
After cement, flyash, sand, the pretreated modified rubber particle of S75 levels miberal powder and interface are mixed, in coagulation
25s is stirred in soil or mortar mixer；
Water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose are added afterwards and is stirred 45s again, produce modified rubber particle
Water-fast thermal insulation mortar；
The thermal insulation mortar being prepared is made up of following weight item：
Embodiment 2
A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation, methods described include：
(1) preparation of modified rubber particle
Rubber grain is soaked 3 hours in alkali lye, alkali lye is the NaOH aqueous solution of concentration 2%, after rubbing and washing, filter,
Remove its hydrophobic top layer and show rough surface, then rinsed 5 times with clear water, after drying under 80 DEG C of water bath, will be located
Rubber grain and coupling modifier after reason, which are added in water bath containers, to be stirred, and modified rubber particle is obtained after drying；
The coupling modifier is prepared by following material, and its content of material is in terms of the mass percent for accounting for rubber grain
Calculate：
Coupling agent：7%；
Initiator：0.5%；
Water reducer：7%；
Water：65%；
Coupling agent is VTES coupling agent；
Initiator is peroxide initiator or azo initiator；
Water reducer is naphthalene series high-efficiency water-reducing agent or high-efficiency water-reducing agent of poly-carboxylic acid；
(2) preparation of water-fast thermal insulation mortar
It is standby to weigh the modified rubber particle being prepared in step (1)；
The silicon ash and anti-crack water-proof agent of modified rubber granular mass 3% are weighed, adds water to stir, adds waterglass,
It is well mixed；
Modified rubber particle is poured into above-mentioned slurry to be mixed together and uniformly carries out interface processing, then interface is pre-processed
The modified rubber particle crossed is cool to half-dried, stand-by；
After cement, flyash, sand, the pretreated modified rubber particle of S75 levels miberal powder and interface are mixed, in coagulation
30s is stirred in soil or mortar mixer；
Water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose are added afterwards and is stirred 50s again, produce modified rubber particle
Water-fast thermal insulation mortar；
The thermal insulation mortar being prepared is made up of following weight item：
Embodiment 3
A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation, methods described include：
(1) preparation of modified rubber particle
Rubber grain is soaked 4 hours in alkali lye, alkali lye is the NaOH aqueous solution of concentration 3%, after rubbing and washing, filter,
Remove its hydrophobic top layer and show rough surface, then rinsed 6 times with clear water, after drying under 85 DEG C of water bath, will be located
Rubber grain and coupling modifier after reason, which are added in water bath containers, to be stirred, and modified rubber particle is obtained after drying；
The coupling modifier is prepared by following material, and its content of material is in terms of the mass percent for accounting for rubber grain
Calculate：
Coupling agent：8%；
Initiator：0.6%；
Water reducer：8%；
Water：70%；
Coupling agent is VTES coupling agent；
Initiator is peroxide initiator or azo initiator；
Water reducer is naphthalene series high-efficiency water-reducing agent or high-efficiency water-reducing agent of poly-carboxylic acid；
(2) preparation of water-fast thermal insulation mortar
It is standby to weigh the modified rubber particle being prepared in step (1)；
The silicon ash and anti-crack water-proof agent of modified rubber granular mass 4% are weighed, adds water to stir, adds waterglass,
It is well mixed；
Modified rubber particle is poured into above-mentioned slurry to be mixed together and uniformly carries out interface processing, then interface is pre-processed
The modified rubber particle crossed is cool to half-dried, stand-by；
After cement, flyash, sand, the pretreated modified rubber particle of S75 levels miberal powder and interface are mixed, in coagulation
35s is stirred in soil or mortar mixer；
Water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose are added afterwards and is stirred 55s again, produce modified rubber particle
Water-fast thermal insulation mortar；
The thermal insulation mortar being prepared is made up of following weight item：
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
- A kind of 1. method of the water-fast thermal insulation mortar of modified rubber particle preparation, it is characterised in that methods described includes：(1) preparation of modified rubber particleRubber grain is soaked into 2-4 hours in alkali lye, after rubbing and washing, filter, removes its hydrophobic top layer and shows rough surface, Then rinsed 4-6 times with clear water, after drying under 75-85 DEG C of water bath, by the rubber grain and coupling modifier after processing Agent is added in water bath containers and stirred, and modified rubber particle is obtained after drying；The coupling modifier is prepared by following material, and its content of material is calculated with accounting for the mass percent of rubber grain：Coupling agent：6%~8%；Initiator：0.4%~0.6%；Water reducer：6%~8%；Water：60%~70%；(2) preparation of water-fast thermal insulation mortarIt is standby to weigh the modified rubber particle being prepared in step (1)；Modified rubber granular mass 2-4% silicon ash and anti-crack water-proof agent is weighed, adds water to stir, adds waterglass, is mixed Close uniform；Modified rubber particle is poured into above-mentioned slurry to be mixed together and uniformly carries out interface processing, it is then that interface is pretreated Modified rubber particle is cool to half-dried, stand-by；After cement, flyash, sand, the pretreated modified rubber particle of S75 levels miberal powder and interface are mixed, in concrete or It is stirred in mortar mixer；Water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose are added afterwards to be stirred again, produce the water-fast guarantor of modified rubber particle Warm mortar；The thermal insulation mortar being prepared is made up of following weight item：
- A kind of 2. method of water-fast thermal insulation mortar of modified rubber particle preparation according to claim 1, it is characterised in that institute It is VTES coupling agent to state coupling agent.
- A kind of 3. method of water-fast thermal insulation mortar of modified rubber particle preparation according to claim 1, it is characterised in that institute It is peroxide initiator or azo initiator to state initiator.
- A kind of 4. method of water-fast thermal insulation mortar of modified rubber particle preparation according to claim 1, it is characterised in that institute It is naphthalene series high-efficiency water-reducing agent or high-efficiency water-reducing agent of poly-carboxylic acid to state water reducer.
- A kind of 5. method of water-fast thermal insulation mortar of modified rubber particle preparation according to claim 1, it is characterised in that institute State the NaOH aqueous solution that alkali lye is concentration 1-3%.
- 6. the method for a kind of water-fast thermal insulation mortar of modified rubber particle preparation according to claim 1, it is characterised in that will Cement, flyash, sand, S75 levels miberal powder and the mixed mixing time of modified rubber particle are 25-35s.
- 7. the method for a kind of water-fast thermal insulation mortar of modified rubber particle preparation according to claim 1, it is characterised in that add 45-55s is stirred after entering water, naphthalene series high-efficiency water-reducing agent and carboxymethyl cellulose.
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| CN201610769523.1A CN107777941A (en) | 2016-08-30 | 2016-08-30 | A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation |
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| CN201610769523.1A CN107777941A (en) | 2016-08-30 | 2016-08-30 | A kind of method of the water-fast thermal insulation mortar of modified rubber particle preparation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108516714A (en) * | 2018-04-04 | 2018-09-11 | 国网河南省电力公司电力科学研究院 | The method of modifying of retired composite insulator silicon rubber and its application in high-toughness mortar |
| CN108721804A (en) * | 2018-04-09 | 2018-11-02 | 夏侯文奇 | A kind of medicament extending the coal ignition phase for easily spontaneous combustion coal dump |
| CN112142400A (en) * | 2020-09-09 | 2020-12-29 | 武汉市汉阳市政建设集团有限公司 | Concrete with steel slag and waste rubber as fine aggregate and application thereof |
| CN113292280A (en) * | 2021-06-17 | 2021-08-24 | 内蒙古伟之杰节能装备有限公司 | Polyurethane composite light aggregate concrete and preparation method thereof |
| CN116332546A (en) * | 2022-12-21 | 2023-06-27 | 中建商品混凝土有限公司 | Preparation method of modified rubber aggregate and road cement concrete |
-
2016
- 2016-08-30 CN CN201610769523.1A patent/CN107777941A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108516714A (en) * | 2018-04-04 | 2018-09-11 | 国网河南省电力公司电力科学研究院 | The method of modifying of retired composite insulator silicon rubber and its application in high-toughness mortar |
| CN108721804A (en) * | 2018-04-09 | 2018-11-02 | 夏侯文奇 | A kind of medicament extending the coal ignition phase for easily spontaneous combustion coal dump |
| CN112142400A (en) * | 2020-09-09 | 2020-12-29 | 武汉市汉阳市政建设集团有限公司 | Concrete with steel slag and waste rubber as fine aggregate and application thereof |
| CN113292280A (en) * | 2021-06-17 | 2021-08-24 | 内蒙古伟之杰节能装备有限公司 | Polyurethane composite light aggregate concrete and preparation method thereof |
| CN113292280B (en) * | 2021-06-17 | 2022-08-30 | 内蒙古伟之杰节能装备有限公司 | Polyurethane composite light aggregate concrete and preparation method thereof |
| CN116332546A (en) * | 2022-12-21 | 2023-06-27 | 中建商品混凝土有限公司 | Preparation method of modified rubber aggregate and road cement concrete |
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Application publication date: 20180309 |