CN110436862A - A kind of heat-insulating sound-insulating lime white building decoration materials and preparation method thereof - Google Patents
A kind of heat-insulating sound-insulating lime white building decoration materials and preparation method thereof Download PDFInfo
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- CN110436862A CN110436862A CN201910624257.7A CN201910624257A CN110436862A CN 110436862 A CN110436862 A CN 110436862A CN 201910624257 A CN201910624257 A CN 201910624257A CN 110436862 A CN110436862 A CN 110436862A
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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
- C04B2111/40—Porous or lightweight 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
- C04B2111/52—Sound-insulating materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention belongs to the field of building materials, a kind of heat-insulating sound-insulating lime white building decoration materials and preparation method thereof are disclosed.The present invention is using white lime, powdered whiting, doughnut, hollow glass microballoon as main raw material(s), by being pre-processed to doughnut, and be added in lime white pre-composition, the heat-insulating sound-insulating lime white building decoration materials for having both a variety of different materials excellent performances are then obtained under twin screw extrusion process；By controlling quick lime curing process, powdered whiting and calcium bicarbonate proportion are reasonably selected, and by double screw extruder extrusion molding, effectively increases compound between material, solves the problems, such as that conventional lime construction material is easy to crack；Heat conduction is reduced by the way that doughnut and hollow glass microballoon is added, increases the heat-proof quality of building decoration materials；Friction in viscosity and increase is improved by corona treatment or coupling agent chemical treatment simultaneously, provides the function of sound insulation for building decoration materials.
Description
Technical field
The invention belongs to the field of building materials, and in particular to a kind of heat-insulating sound-insulating lime white building decoration materials and its preparation
Method.
Background technique
It is negative to can effectively reduce building air conditioning for reducing heat loss of the architecture indoor to external environment for building heat preservation heat-barrier material
Lotus and air conditioning energy consumption are the important components for constructing energy saving building and implementing reducing energy consumption.
Heat transfer refers to due to the hot transport phenomenon that object is directly contacted with heat and is occurred, and is by substance microcosmic particle itself
Warm-up movement carry out.Solid and liquid thermal conductivity lean on the vibration of the movement or molecule, atom of free electron near equilbrium position
Dynamic to carry out, it is thermally conductive that gas leans on mutual collision when molecular thermalmotion to carry out.Thermal convection is that fluid is in contact with solid wall and is carried out
Heat exchange, include free convection and forced convection.The former, which is that fluid is uneven in temperature, causes heat density uneven, and the latter is by water
The external causes such as pump, blower cause caused by fluid motion.Heat radiation refers to that the thermal energy of absorption is converted radiation energy by object.It is any
Object all has the characteristic of absorption or radio radiation energy.Heat-barrier material refers to the material for having obvious resistance to hot-fluid, usually
The material of control heating capacity ecto-entad transmitting is known as heat-barrier material.Heat-barrier material is usually that many blind holes are contained in a kind of inside
The light material of gap, the thermal coefficient since the thermal coefficient of closed air is very low, naturally comprising many mushy materials itself
Also can be very low, usually the material thermal coefficient less than 0.14W/ (mK) calls heat-barrier material.
Sound wave is in route of transmission, when encountering uniform barrier (such as plank, metal plate, wall), since medium hinders
Anti- variation, a part of sound can be reflected back by barrier, and another part can then be absorbed by barrier, only some sound energy
Another space can be radiated through barrier.The phenomenon that sound caused by barrier can reduce is known as insulating against sound, and has sound insulation energy
The barrier of power is known as sound insulating structure or partiting sound member.Sound can absorptions be then sound absorption substance itself viscous under acoustic vibration
The result of property and interior rubbing action.Particle Vibration Velocity when due to Acoustic Wave Propagation is different, makes to generate phase between adjacent particle
The viscous force or internal friction of interaction, so that sound be enable to be converted into thermal energy.Such case acted at groud surface it is most strong,
Wherein viscous effect is main；The sound of some is understood when sound passes to material surface to be reflected, reflected energy
Size reflect the quality of sound insulation property.Noise is extremely serious environmental pollution in building construction at present, thus builds work
Journey, which applies working hour, will select suitable acoustic material, to guarantee that house noise control effect is good.It is another that material sound insulation is conceived to incident sound source
The size of the transmission sound energy of side, target is that transmission sound can want small, weakens transmission sound energy, stops the propagation of sound.
There is the problems such as being easy cracking, performance is single, and service life is short in conventional lime construction material, while material is heat-insulated
Performance is bad, and the heat loss of Indoor environment to external environment is big, and sound insulation value is irregular, and thus caused building noise is asked
Topic is generally by the concern and attention of all circles personnel.
Summary of the invention
In place of the above shortcoming and defect of the existing technology, the primary purpose of the present invention is that providing a kind of heat-insulated
There is easy cracking to solve conventional lime construction material in the preparation method of sound insulation lime white building decoration materials, performance is single,
The problems such as service life is short, while the heat-proof quality of material is bad, the heat loss of Indoor environment to external environment is big, sound insulation value
The problems such as irregular.
Another object of the present invention is to provide a kind of heat-insulating sound-insulating lime white buildings being prepared by the above method
Ornament materials.
The object of the invention is achieved through the following technical solutions:
A kind of preparation method of heat-insulating sound-insulating lime white building decoration materials, including following preparation step:
(1) it cures: by quick lime grinding and sieving, removing big particle and impurity is placed in reactive tank, be added 3~6 times
The water of parts by weight, stirs evenly, and cures 36~48h, obtains white lime slurries；White lime slurries are carried out to stablize Reaction Separation behaviour
Make, controls and stablize reaction temperature at 50~75 DEG C, separation upper layer saturated limewater and precipitating lime paste are spare；
(2) doughnut pre-processes: carrying out corona treatment to doughnut or is chemically treated using coupling agent, is obtained
Pretreated doughnut, is added the saturated limewater of part steps (1), and isothermal holding after heating stirring homogenizing obtains
Hollow fiber Curing material；
(3) powdered whiting and calcium bicarbonate allotment: weigh quick lime parts by weight 5%~30% powdered whiting and
2%~10% calcium bicarbonate is added in step (1) remaining saturated limewater after dry state mixing, stirs to get lime white
Pre-composition；
(4) high-speed vacuum mixes: by lime white pre-composition obtained by doughnut Curing material obtained by step (2) and step (3)
It is placed in high-speed mixer, hollow glass microballoon is added and is uniformly mixed, vacuumizes 6~18h of heat-insulation pressure keeping, obtains mixed slurry；
(5) it is aged: mixed slurry obtained by step (4) being squeezed out by double screw extruder, and keeps the temperature 20 in 20~50 DEG C
~40 days, obtain heat-insulating sound-insulating lime white building decoration materials.
Compared with the existing technology, the present invention increases the heat-proof quality of material, simultaneously by pre-processing to doughnut
The function of heat-insulating sound-insulating is provided by corona treatment or coupling agent chemical treatment, is had both under twin screw extrusion process
The heat-insulating sound-insulating lime white building decoration materials of a variety of different materials excellent performances.
Preferably, hollow fiber material material described in step (2) be modified polypropene, polyvinyl alcohol, low melting point nylon,
Low-melting point polyester, modified polypropene and polyolefin elastomer blends or modified polypropene and EVA elastomer blend.According to not
Same method of plasma processing or coupling agent chemical treatment method, selects suitable hollow fiber material material, effectively improves
Pretreated efficiency increases sound insulation value.
Preferably, the fusing point of doughnut described in step (2) is 60~215 DEG C, and hollow rate is 5%~40%；It is hollow
The fiber condition of fiber is staple fiber or crimped fibre, and when selecting staple fiber, fibre length is 3~50mm；It is crimped when selecting
When fiber, fiber shape is Z-type fiber, S fiber type or spirality fiber.According to quick lime cooking conditions and lime white pre-composition
Proportion selects the suitable doughnut of physical parameter, improves the heat-proof quality of material.
Preferably, the atmosphere of corona treatment described in step (2) uses oxygen-containing elemental gas, Nitrogen element gas
At least one of body, halogen-containing gas, inert gas；The processing vacuum degree of corona treatment is 5~30Pa, handles the time
For 10s~10min；The type of the coupling agent be silane, titanate esters, Aluminate, in molecules surfactant at least
It is a kind of.Viscosity is improved by corona treatment or coupling agent chemical treatment and increases interior friction, is provided for material good
Sound insulation function.
Preferably, the temperature of heating stirring described in step (2) is 40~60 DEG C, and the isothermal holding refers to be protected in 40 DEG C
6~10h of temperature.
Preferably, the diameter of step (4) described hollow glass microballoon is 0.5~10 μm, the additive amount of hollow glass microballoon
It is the 2%~30% of mixed slurry quality.Hollow glass microballoon can mention the low airtight air vent of coefficient of heat supply for material, further
Reduce the conduction of heat.
A kind of heat-insulating sound-insulating lime white building decoration materials, are prepared by above-mentioned method.
Further, the sound transmission loss of the heat-insulating sound-insulating lime white building decoration materials is 20~30dB, is surveyed in hot box
Can reduce 1.5~4.5 DEG C of temperature under examination method, and using when be not easily susceptible to cracking.
Compared with the existing technology, the invention has the following advantages and beneficial effects:
(1) by control quick lime curing process, powdered whiting and calcium bicarbonate proportion are reasonably selected, and by double spiral shells
Bar extruder extrusion molding, effectively increase it is compound between material, solve the problems, such as conventional lime construction material be easy cracking.
(2) the low airtight air vent of big calorimetric coefficient is led by the way that doughnut and hollow glass microballoon offer is added, reduces heat
Amount conduction, increases the heat-proof quality of building decoration materials；It is improved simultaneously by corona treatment or coupling agent chemical treatment viscous
Friction in stickiness and increase, provides the function of sound insulation for building decoration materials.
(3) twin-screw extrusion can be formed in the MULTILAYER COMPOSITE that an in-process completes material, and extreme portions are multi-layer co-extruded
Composite material does not need adhesive out, has the characteristics that into production. art simple, high production efficiency, at low cost, so that composite material
Have both the excellent performance of a variety of different materials.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment 1
(1) it cures: by quick lime grinding and sieving, removing big particle and impurity, obtain the content of calcium oxide 90%,
Fineness is that the particulate matter of 200 mesh is carried out as the deionized water that 3.0 times of parts by weight in reactive tank, are added using anchor agitator
Stirring, mixing speed 40r/min, accurately controlling entire reaction temperature is 75 DEG C, and stratification after curing 36 hours or more obtains
Obtain upper layer saturated limewater and lower layer's slaked lime slurry.
(2) doughnut pre-processes: being that 5Pa uses inert gas pair under conditions of handling time 10min in vacuum degree
Modified polypropene and EVA elastomer blend hollow core staple fibers (fusing point: 215 DEG C；Hollow rate: 40%；Fibre length: 3mm) into
The pretreatment of row plasma, obtains pretreated doughnut, and saturated limewater described in part steps (1), heating is added
To 40 DEG C, after stirring homogenizing, doughnut Curing material is obtained after keeping the temperature 10 hours in 40 DEG C.
(3) powdered whiting and calcium bicarbonate allotment: weigh quick lime parts by weight 5% powdered whiting (1000 mesh, it is pure
85%), 2% calcium bicarbonate (1000 mesh, purity 90%) uniformly divides 5 batches and is added to remaining saturation stone degree after dry state mixing
In buck, strong stirring obtains lime white pre-composition.
(4) high-speed vacuum mixes: lime white described in doughnut Curing material described in step (2) and step (3) is pre-
Mixed object is placed in high-speed mixer, and 2% hollow glass microballoon (diameter: 0.5um) is added, and keeps the temperature after vacuumizing after mixed at high speed
Pressure maintaining 18 hours, obtain mixed slurry.
(5) be aged: the slurry that step 4 is obtained is in 30 DEG C, 2 hours gentle agitations of interval, mixing speed 5r/min, heat preservation
Obtain within 20 days heat-insulating sound-insulating lime white building decoration materials.
The heat-insulating sound-insulating lime white building decoration materials sound transmission loss that the present embodiment obtains reaches 30dB, in hot box method of testing
Under can reduce 4.5 DEG C of temperature, when use, is not easily susceptible to cracking, and has good service performance.
Embodiment 2
(1) it cures: by quick lime grinding and sieving, removing big particle and impurity, obtain the content of calcium oxide 90%,
Fineness is that the particulate matter of 200 mesh is carried out as the deionized water that 6.0 times of parts by weight in reactive tank, are added using anchor agitator
Stirring, mixing speed 40r/min, accurately controlling entire reaction temperature is 50 DEG C, and stratification after curing 48 hours or more obtains
Obtain upper layer saturated limewater and lower layer's slaked lime slurry.
(2) doughnut pre-processes: being that 30Pa uses oxygen-containing elemental gas under conditions of handling time 10s in vacuum degree
To polyvinyl alcohol hollow screw shape fiber (fusing point: 60 DEG C；Hollow rate: 5%；) plasma pretreatment is carried out, it is pre-processed
Saturated limewater described in part steps (1) is added in doughnut afterwards, is warming up to 60 DEG C, after stirring is homogenized, keeps the temperature in 40 DEG C
Doughnut Curing material is obtained after 6 hours.
(3) powdered whiting and calcium bicarbonate allotment: weigh quick lime parts by weight 30% powdered whiting (1000 mesh,
Purity 85%), 10% calcium bicarbonate (1000 mesh, purity 90%), after dry state mixing, uniformly points 4 batches be added to it is remaining full
In limewash, strong stirring obtains lime white pre-composition.
(4) high-speed vacuum mixes: lime white described in doughnut Curing material described in step (2) and step (3) is pre-
Mixed object is placed in high-speed mixer, and 30% hollow glass microballoon (diameter: 10um) is added, and keeps the temperature after vacuumizing after mixed at high speed
Pressure maintaining 6 hours, obtain mixed slurry.
(5) be aged: the slurry that step 4 is obtained is in 20 DEG C, 2 hours gentle agitations of interval, mixing speed 5r/min, heat preservation
Obtain within 40 days heat-insulating sound-insulating lime white building decoration materials.
The heat-insulating sound-insulating lime white building decoration materials sound transmission loss that the present embodiment obtains reaches 20dB, in hot box method of testing
Under can reduce 1.5 DEG C of temperature, when use, is not easily susceptible to cracking, and has good service performance.
Embodiment 3
(1) it cures: by quick lime grinding and sieving, removing big particle and impurity, obtain the content of calcium oxide 90%,
Fineness is that the particulate matter of 200 mesh is carried out as the deionized water that 5.0 times of parts by weight in reactive tank, are added using anchor agitator
Stirring, mixing speed 40r/min, accurately controlling entire reaction temperature is the standing point after curing 40 hours or more less than 50 DEG C
Layer obtains upper layer saturated limewater and lower layer's slaked lime slurry.
(2) doughnut pre-processes: being that 15Pa uses silane coupling agent under conditions of handling time 5min in vacuum degree
To modified polypropene and the hollow Z-shaped fiber (fusing point: 100 DEG C of polyolefin elastomer blends；Hollow rate: 20%) coupling agent is carried out
Chemical pretreatment obtains pretreated doughnut, and upper layer saturated limewater described in part steps (1) is added, is warming up to
50 DEG C, after stirring is homogenized, doughnut Curing material is obtained after keeping the temperature 6 hours in 40 DEG C.
(3) powdered whiting and calcium bicarbonate allotment: weigh quick lime parts by weight 10% powdered whiting (1000 mesh,
Purity 85%), 5% calcium bicarbonate (1000 mesh, purity 90%) uniformly divides 4 batches and is added to remaining saturation after dry state mixing
In limewash, strong stirring obtains lime white pre-composition.
(4) high-speed vacuum mixes: lime white described in doughnut Curing material described in step (2) and step (3) is pre-
Mixed object is placed in high-speed mixer, and 30% hollow glass microballoon (diameter: 10um) is added, and keeps the temperature after vacuumizing after mixed at high speed
Pressure maintaining 10 hours, obtain mixed slurry.
(5) be aged: the slurry that step 4 is obtained is in 50 DEG C, 2 hours gentle agitations of interval, mixing speed 5r/min, heat preservation
Obtain within 25 days heat-insulating sound-insulating lime white building decoration materials.
The heat-insulating sound-insulating lime white building decoration materials sound transmission loss that the present embodiment obtains reaches 25dB, in hot box method of testing
Under can reduce 3.5 DEG C of temperature, when use, is not easily susceptible to cracking, and has good service performance.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of preparation method of heat-insulating sound-insulating lime white building decoration materials, it is characterised in that including following preparation step:
(1) it cures: by quick lime grinding and sieving, removing big particle and impurity is placed in reactive tank, 3~6 times of weight are added
The water of part, stirs evenly, and cures 36~48h, obtains white lime slurries；White lime slurries are carried out to stablize Reaction Separation operation,
It controls and stablizes reaction temperature at 50~75 DEG C, separation upper layer saturated limewater and precipitating lime paste are spare；
(2) doughnut pre-processes: carrying out corona treatment to doughnut or is chemically treated using coupling agent, obtains pre- place
Doughnut after reason, is added the saturated limewater of part steps (1), and isothermal holding after heating stirring homogenizing obtains hollow fibre
Tie up Curing material；
(3) powdered whiting and calcium bicarbonate allotment: weigh quick lime parts by weight 5%~30% powdered whiting and 2%~
10% calcium bicarbonate is added in step (1) remaining saturated limewater after dry state mixing, stirs to get lime white premix
Object；
(4) high-speed vacuum mixes: lime white pre-composition obtained by doughnut Curing material obtained by step (2) and step (3) is placed in
High-speed mixer is added hollow glass microballoon and is uniformly mixed, vacuumizes 6~18h of heat-insulation pressure keeping, obtain mixed slurry；
(5) it is aged: mixed slurry obtained by step (4) being squeezed out by double screw extruder, and keeps the temperature 20~40 in 20~50 DEG C
It, obtains heat-insulating sound-insulating lime white building decoration materials.
2. a kind of preparation method of heat-insulating sound-insulating lime white building decoration materials according to claim 1, it is characterised in that:
Hollow fiber material material described in step (2) is modified polypropene, polyvinyl alcohol, low melting point nylon, low-melting point polyester, modification
Polypropylene and polyolefin elastomer blends or modified polypropene and EVA elastomer blend.
3. a kind of preparation method of heat-insulating sound-insulating lime white building decoration materials according to claim 1, it is characterised in that:
The fusing point of doughnut described in step (2) is 60~215 DEG C, and hollow rate is 5%~40%；The fiber condition of doughnut is
Staple fiber or crimped fibre, the fibre length of the staple fiber are 3~50mm；The fiber shape of the crimped fibre is that Z-type is fine
Dimension, S fiber type or spirality fiber.
4. a kind of preparation method of heat-insulating sound-insulating lime white building decoration materials according to claim 1, it is characterised in that:
The atmosphere of corona treatment described in step (2) use oxygen-containing elemental gas, Nitrogen element gas, halogen-containing gas,
At least one of inert gas；The processing vacuum degree of corona treatment is 5~30Pa, and the processing time is 10s~10min；
The type of the coupling agent is at least one of silane, titanate esters, Aluminate, molecules surfactant.
5. a kind of preparation method of heat-insulating sound-insulating lime white building decoration materials according to claim 1, it is characterised in that:
The temperature of heating stirring described in step (2) is 40~60 DEG C, and the isothermal holding refers in 40 DEG C of 6~10h of heat preservation.
6. a kind of preparation method of heat-insulating sound-insulating lime white building decoration materials according to claim 1, it is characterised in that:
The diameter of step (4) described hollow glass microballoon is 0.5~10 μm, and the additive amount of hollow glass microballoon is mixed slurry quality
2%~30%.
7. a kind of heat-insulating sound-insulating lime white building decoration materials, it is characterised in that: described in any item by claim 1~6
Method is prepared.
8. a kind of heat-insulating sound-insulating lime white building decoration materials according to claim 7, it is characterised in that: the heat insulation
The sound transmission loss of sound lime white building decoration materials is 20~30dB, can reduce temperature 1.5~4.5 under hot box method of testing
℃。
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