CN106927757A - A kind of architectural attapulgite adhesive and preparation method thereof - Google Patents
A kind of architectural attapulgite adhesive and preparation method thereof Download PDFInfo
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- CN106927757A CN106927757A CN201710231517.5A CN201710231517A CN106927757A CN 106927757 A CN106927757 A CN 106927757A CN 201710231517 A CN201710231517 A CN 201710231517A CN 106927757 A CN106927757 A CN 106927757A
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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
- C04B28/04—Portland cements
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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)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention provides a kind of architectural attapulgite adhesive and preparation method thereof, it is related to field of adhesive technology, adhesive is made up of 1 part of 160 parts of portland cement, 10 parts of Nitrogen-containing Phenolic Resins, 10 parts of N aminoethyl piperazines, 65 parts of pure-acrylic emulsion, 6 parts of polyvinyl alcohol, 4 parts of ferric trichloride, 6 parts of asbestos fibre, 140 parts of quartz sand, 6 parts of waste ceramic powder, 20 parts of attapulgite, 7 parts of polyamide, 5 parts of dibutyl phthalate, 7 parts of toluene, 5 parts of coupling agent, 8 parts of triethanolamine and 3 aminopropyl trimethoxysilanes；Preparation method is：(1) by waste ceramic powder and attapulgite mixed grinding, triethanolamine and 3 aminopropyl trimethoxysilanes are added, crushes finely ground, obtain mixed-powder；(2) pure-acrylic emulsion is added in reactor, sequentially adds polyvinyl alcohol, mixed-powder stirring, dries, obtain rubber powder；(3) by surplus stock and rubber powder dry mixing.The binding agent of preparation has adhesion strength high, good endurance, simple advantage of constructing.
Description
Technical field
The invention belongs to field of adhesive technology, and in particular to a kind of architectural attapulgite adhesive and its preparation
Method.
Background technology
Often fixed using a certain amount of adhesive during construction material construction and installation.But existing adhesive is deposited
The shortcomings of low construction efficiency, poor cementability, poor useful life longevity and security difference, construction material construction has been can not meet
The bonding requirement of installation.Therefore, it is badly in need of a kind of brand-new high performance adhesive of research and development.
A kind of building partition of Chinese patent literature of the bulletin of on April 20th, 2016 (is authorized with lightweight board attapulgite binder
Notification number CN103319130B), it is made up of the raw material of following weight portion：32.5 fast hard aluminum sulfate salt cement 120-150, pure third breast
Liquid 40-50, polyvinyl alcohol 4-6, diethylene glycol (DEG) 3-4, HEMC 2-3, quartz sand 100-150, string 4-6,
Alum stone flour 3-5, benzene sulfonyl hydrazide 4-8, dolomite dust 5-10, attapulgite 10-15, pulverized slag 4-8, borax 1-2, triethanolamine
5-8,3- aminopropyl trimethoxysilane 0.5-1.
A kind of architectural attapulgite adhesive and preparation method thereof is now provided, the binding agent of preparation has bonding strong
Degree height, good endurance, simple advantage of constructing.
The content of the invention
In order to solve the problems, such as the adhesive bonds intensity on existing building not high, poor durability, construction complexity, this hair
Bright purpose is to provide a kind of architectural attapulgite adhesive and preparation method thereof, and the binding agent of preparation has bonding strong
Degree height, good endurance, simple advantage of constructing.
The invention provides following technical scheme：
A kind of architectural attapulgite adhesive, is made up of the raw material of following weight portion：
Portland cement as the base-material in adhesive, with good adhesion and wettability.
Nitrogen-containing Phenolic Resins as the curing agent in adhesive, with good flame resistance, good endurance, easy to use excellent
Point, its solidfied material has high intensity, high tenacity, heat-resisting, low water absorbable high.
N- aminoethyl piperazines can in humid conditions carry out low-temperature setting as the curing agent in adhesive, have
Good cementability and corrosion resistance.
Ferric trichloride can speed up the mistake of the resin and curing agent reaction in adhesive as the accelerator in adhesive
Journey, shortens hardening time, reduces solidification temperature.
Asbestos fibre improves the impact strength of adhesive as the filler in adhesive.
Waste ceramic powder improves the hardness and compressive property of adhesive as the filler in adhesive.
Attapulgite as the filler in adhesive, with good adhesive property and heat preservation and insulation.
Polyamide is used as the toughener in adhesive, it is possible to increase the pliability of adhesive, improves glue-line impact resistance, keeps away
Exempt from the cracking problem of adhesive.
Dibutyl phthalate is used as the plasticizer in adhesive, by increasing capacitance it is possible to increase the mobility of glue, is conducive to glue
Infiltration and diffusion.
Toluene can reduce the viscosity of adhesive as the diluent in adhesive, increase mobility so that gluing is operated
Process it is simple, easy construction.
Coupling agent can improve the bonding force of adhesive and adherend surface.
Preferably, it is made up of the raw material of following weight portion：
With adhesion strength is higher, durability preferably, simple advantage of constructing.
Preferably, it is made up of the raw material of following weight portion：
With adhesion strength is high, good endurance, simple advantage of constructing.
Preferably, the coupling agent is titanate coupling agent, and titanate coupling agent not only has fire-retardant, antirust, enhancing viscous
The effect for connecing, and bending entanglement can be carried out with organic polymer in adhesive raw materials, make the organic matter in adhesive raw materials
Compatibility with inorganic matter is improved, and improves the compression strength of adhesive.
A kind of preparation method of architectural attapulgite adhesive, comprises the following steps：
(1) by waste ceramic powder and the well mixed addition grinder of attapulgite, triethanolamine and 3- aminopropyls are added
Trimethoxy silane, grinder grinding rate is 2000-2500r/min, and milling time is 10-20 minutes, takes out drying, is crushed
It is finely ground, 50-150 mesh sieves are crossed, obtain mixed-powder；
(2) pure-acrylic emulsion is added in reactor, heating water bath adds polyethylene to 70-90 DEG C in whipping process
Alcohol, stirs 20-30min, adds the mixed-powder in step (1), continues to stir 15-20min, the emulsion that will be obtained after stirring
It is spray-dried under 255-275 DEG C of thermal current, is obtained rubber powder；
(3) surplus stock and rubber powder dry mixing obtained in step (2) is uniform, ball milling 1-1.5h crosses 200-250 mesh sieves, dress
Bag.
Preferably, grinder grinding rate is 2000-2400r/min in the step (1), and grinding effect is preferable.
Preferably, grinder grinding rate is 2400r/min in the step (1), and grinding effect is best.
Preferably, pure-acrylic emulsion is added in reactor in the step (2), heating water bath can make to 80-90 DEG C
Pure-acrylic emulsion is heated evenly when stirring.
The beneficial effects of the invention are as follows：
1st, the present invention is solved on existing building by the accurate adjustment and control to composition of raw materials and technological parameter
Adhesive bonds intensity is not high, poor durability, the problem of construction complexity.
2nd, portland cement is with the addition of in raw material of the invention, portland cement as the base-material in adhesive, with good
Good adhesion and wettability.
3rd, Nitrogen-containing Phenolic Resins are with the addition of in raw material of the invention, Nitrogen-containing Phenolic Resins as the curing agent in adhesive,
There is good flame resistance, good endurance, easy to use, its solidfied material has high intensity, high tenacity, heat-resisting, low suction high
It is aqueous.
4th, N- aminoethyl piperazines are with the addition of in raw material of the invention, N- aminoethyl piperazines are used as the solidification in adhesive
Agent, can in humid conditions carry out low-temperature setting, with good cementability and corrosion resistance.
5th, ferric trichloride is with the addition of in raw material of the invention, ferric trichloride can speed up as the accelerator in adhesive
Resin and the process of curing agent reaction in adhesive, shorten hardening time, reduce solidification temperature.
6th, asbestos fibre is with the addition of in raw material of the invention, asbestos fibre improves gluing as the filler in adhesive
The impact strength of agent.
7th, waste ceramic powder is with the addition of in raw material of the invention, waste ceramic powder improves gluing as the filler in adhesive
The hardness and compressive property of agent.
8th, attapulgite is with the addition of in raw material of the invention, attapulgite as the filler in adhesive, with good
Adhesive property and heat preservation and insulation.
9th, polyamide is with the addition of in raw material of the invention, polyamide is used as the toughener in adhesive, it is possible to increase gluing
The pliability of agent, improves glue-line impact resistance, it is to avoid the cracking problem of adhesive.
10th, dibutyl phthalate is with the addition of in raw material of the invention, dibutyl phthalate is used as in adhesive
Plasticizer, by increasing capacitance it is possible to increase the mobility of glue, be conducive to the infiltration and diffusion of glue.
11st, toluene is with the addition of in raw material of the invention, toluene can reduce adhesive as the diluent in adhesive
Viscosity, increases mobility so that the process of gluing operation is simple, easy construction.
12nd, coupling agent is with the addition of in raw material of the invention, it is bonding with adherend surface that coupling agent can improve adhesive
Power.
13rd, heretofore described coupling agent is titanate coupling agent, and titanate coupling agent not only has fire-retardant, antirust, increasing
The effect of strong bonding, and can carry out bending entanglement with organic polymer in adhesive raw materials, makes having in adhesive raw materials
Machine thing is improved with the compatibility of inorganic matter, improves the compression strength of adhesive.
14th, grinder grinding rate is 2400r/min in heretofore described step (1), and grinding effect is best.
15th, pure-acrylic emulsion is added in reactor in heretofore described step (2), heating water bath to 80-90 DEG C, energy
It is heated evenly when enough stirring pure-acrylic emulsion.
Specific embodiment
Embodiment 1
A kind of architectural attapulgite adhesive, is made up of the raw material of following weight portion：
Portland cement as the base-material in adhesive, with good adhesion and wettability.
Nitrogen-containing Phenolic Resins as the curing agent in adhesive, with good flame resistance, good endurance, easy to use excellent
Point, its solidfied material has high intensity, high tenacity, heat-resisting, low water absorbable high.
N- aminoethyl piperazines can in humid conditions carry out low-temperature setting as the curing agent in adhesive, have
Good cementability and corrosion resistance.
Ferric trichloride can speed up the mistake of the resin and curing agent reaction in adhesive as the accelerator in adhesive
Journey, shortens hardening time, reduces solidification temperature.
Asbestos fibre improves the impact strength of adhesive as the filler in adhesive.
Waste ceramic powder improves the hardness and compressive property of adhesive as the filler in adhesive.
Attapulgite as the filler in adhesive, with good adhesive property and heat preservation and insulation.
Polyamide is used as the toughener in adhesive, it is possible to increase the pliability of adhesive, improves glue-line impact resistance, keeps away
Exempt from the cracking problem of adhesive.
Dibutyl phthalate is used as the plasticizer in adhesive, by increasing capacitance it is possible to increase the mobility of glue, is conducive to glue
Infiltration and diffusion.
Toluene can reduce the viscosity of adhesive as the diluent in adhesive, increase mobility so that gluing is operated
Process it is simple, easy construction.
Coupling agent can improve the bonding force of adhesive and adherend surface.
Coupling agent is titanate coupling agent, and titanate coupling agent not only plays the role of fire-retardant, antirust, enhancing bonding, and
And bending entanglement can be carried out with organic polymer in adhesive raw materials, make the phase of the organic matter and inorganic matter in adhesive raw materials
Capacitive is improved, and improves the compression strength of adhesive.
A kind of preparation method of architectural attapulgite adhesive, comprises the following steps：
(1) by waste ceramic powder and the well mixed addition grinder of attapulgite, triethanolamine and 3- aminopropyls are added
Trimethoxy silane, grinder grinding rate is 2400r/min, and milling time is 20 minutes, takes out drying, crushes finely ground, mistake
150 mesh sieves, obtain mixed-powder；
(2) pure-acrylic emulsion is added in reactor, heating water bath adds polyvinyl alcohol to 90 DEG C in whipping process,
Stirring 30min, adds the mixed-powder in step (1), continues to stir 20min, and the emulsion that will be obtained after stirring is at 275 DEG C
It is spray-dried under thermal current, is obtained rubber powder；
(3) surplus stock and rubber powder dry mixing obtained in step (2) is uniform, ball milling 1.5h crosses 250 mesh sieves, pack.
The Specifeca tion speeification of invention adhesive is as follows：
Tensile bond strength (Mpa):1.5；
Tensile bond strength (Mpa) after immersion:1.1；
Heat ageing after-drawing adhesion strength (Mpa):1.01；
Tensile bond strength (Mpa) after Frozen-thawed cycled:0.91；
Tensile bond strength (Mpa) after bonding 1 year:1.35；
Tensile bond strength (Mpa) after bonding 3 years:1.02.
The present invention solves the glue on existing building by the accurate adjustment and control to composition of raw materials and technological parameter
Stick adhesion strength is not high, poor durability, the problem of construction complexity.
Embodiment 2
A kind of architectural attapulgite adhesive, is made up of the raw material of following weight portion：
Portland cement as the base-material in adhesive, with good adhesion and wettability.
Nitrogen-containing Phenolic Resins as the curing agent in adhesive, with good flame resistance, good endurance, easy to use excellent
Point, its solidfied material has high intensity, high tenacity, heat-resisting, low water absorbable high.
N- aminoethyl piperazines can in humid conditions carry out low-temperature setting as the curing agent in adhesive, have
Good cementability and corrosion resistance.
Ferric trichloride can speed up the mistake of the resin and curing agent reaction in adhesive as the accelerator in adhesive
Journey, shortens hardening time, reduces solidification temperature.
Asbestos fibre improves the impact strength of adhesive as the filler in adhesive.
Waste ceramic powder improves the hardness and compressive property of adhesive as the filler in adhesive.
Attapulgite as the filler in adhesive, with good adhesive property and heat preservation and insulation.
Polyamide is used as the toughener in adhesive, it is possible to increase the pliability of adhesive, improves glue-line impact resistance, keeps away
Exempt from the cracking problem of adhesive.
Dibutyl phthalate is used as the plasticizer in adhesive, by increasing capacitance it is possible to increase the mobility of glue, is conducive to glue
Infiltration and diffusion.
Toluene can reduce the viscosity of adhesive as the diluent in adhesive, increase mobility so that gluing is operated
Process it is simple, easy construction.
Coupling agent can improve the bonding force of adhesive and adherend surface.
Coupling agent is titanate coupling agent, and titanate coupling agent not only plays the role of fire-retardant, antirust, enhancing bonding, and
And bending entanglement can be carried out with organic polymer in adhesive raw materials, make the phase of the organic matter and inorganic matter in adhesive raw materials
Capacitive is improved, and improves the compression strength of adhesive.
A kind of preparation method of architectural attapulgite adhesive, comprises the following steps：
(1) by waste ceramic powder and the well mixed addition grinder of attapulgite, triethanolamine and 3- aminopropyls are added
Trimethoxy silane, grinder grinding rate is 2400r/min, and milling time is 20 minutes, takes out drying, crushes finely ground, mistake
150 mesh sieves, obtain mixed-powder；
(2) pure-acrylic emulsion is added in reactor, heating water bath adds polyvinyl alcohol to 90 DEG C in whipping process,
Stirring 30min, adds the mixed-powder in step (1), continues to stir 20min, and the emulsion that will be obtained after stirring is at 275 DEG C
It is spray-dried under thermal current, is obtained rubber powder；
(3) surplus stock and rubber powder dry mixing obtained in step (2) is uniform, ball milling 1.5h crosses 250 mesh sieves, pack.
The Specifeca tion speeification of invention adhesive is as follows：
Tensile bond strength (Mpa):1.4；
Tensile bond strength (Mpa) after immersion:1.02；
Heat ageing after-drawing adhesion strength (Mpa):0.95；
Tensile bond strength (Mpa) after Frozen-thawed cycled:0.85；
Tensile bond strength (Mpa) after bonding 1 year:1.25；
Tensile bond strength (Mpa) after bonding 3 years:0.96.
The present invention solves the glue on existing building by the accurate adjustment and control to composition of raw materials and technological parameter
Stick adhesion strength is not high, poor durability, the problem of construction complexity.
Embodiment 3
A kind of architectural attapulgite adhesive, is made up of the raw material of following weight portion：
Portland cement as the base-material in adhesive, with good adhesion and wettability.
Nitrogen-containing Phenolic Resins as the curing agent in adhesive, with good flame resistance, good endurance, easy to use excellent
Point, its solidfied material has high intensity, high tenacity, heat-resisting, low water absorbable high.
N- aminoethyl piperazines can in humid conditions carry out low-temperature setting as the curing agent in adhesive, have
Good cementability and corrosion resistance.
Ferric trichloride can speed up the mistake of the resin and curing agent reaction in adhesive as the accelerator in adhesive
Journey, shortens hardening time, reduces solidification temperature.
Asbestos fibre improves the impact strength of adhesive as the filler in adhesive.
Waste ceramic powder improves the hardness and compressive property of adhesive as the filler in adhesive.
Attapulgite as the filler in adhesive, with good adhesive property and heat preservation and insulation.
Polyamide is used as the toughener in adhesive, it is possible to increase the pliability of adhesive, improves glue-line impact resistance, keeps away
Exempt from the cracking problem of adhesive.
Dibutyl phthalate is used as the plasticizer in adhesive, by increasing capacitance it is possible to increase the mobility of glue, is conducive to glue
Infiltration and diffusion.
Toluene can reduce the viscosity of adhesive as the diluent in adhesive, increase mobility so that gluing is operated
Process it is simple, easy construction.
Coupling agent can improve the bonding force of adhesive and adherend surface.
Coupling agent is titanate coupling agent, and titanate coupling agent not only plays the role of fire-retardant, antirust, enhancing bonding, and
And bending entanglement can be carried out with organic polymer in adhesive raw materials, make the phase of the organic matter and inorganic matter in adhesive raw materials
Capacitive is improved, and improves the compression strength of adhesive.
A kind of preparation method of architectural attapulgite adhesive, comprises the following steps：
(1) by waste ceramic powder and the well mixed addition grinder of attapulgite, triethanolamine and 3- aminopropyls are added
Trimethoxy silane, grinder grinding rate is 2400r/min, and milling time is 20 minutes, takes out drying, crushes finely ground, mistake
150 mesh sieves, obtain mixed-powder；
(2) pure-acrylic emulsion is added in reactor, heating water bath adds polyvinyl alcohol to 90 DEG C in whipping process,
Stirring 30min, adds the mixed-powder in step (1), continues to stir 20min, and the emulsion that will be obtained after stirring is at 275 DEG C
It is spray-dried under thermal current, is obtained rubber powder；
(3) surplus stock and rubber powder dry mixing obtained in step (2) is uniform, ball milling 1.5h crosses 250 mesh sieves, pack.
The Specifeca tion speeification of invention adhesive is as follows：
Tensile bond strength (Mpa):1.30；
Tensile bond strength (Mpa) after immersion:0.98；
Heat ageing after-drawing adhesion strength (Mpa):0.91；
Tensile bond strength (Mpa) after Frozen-thawed cycled:0.85；
Tensile bond strength (Mpa) after bonding 1 year:1.15；
Tensile bond strength (Mpa) after bonding 3 years:0.92.
The present invention solves the glue on existing building by the accurate adjustment and control to composition of raw materials and technological parameter
Stick adhesion strength is not high, poor durability, the problem of construction complexity.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, although with reference to foregoing reality
Apply example to be described in detail the present invention, for a person skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or equivalent is carried out to which part technical characteristic, all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of architectural attapulgite adhesive, it is characterised in that be made up of the raw material of following weight portion：
2. architectural attapulgite adhesive according to claim 1, it is characterised in that by the original of following weight portion
Material composition：
3. architectural attapulgite adhesive according to claim 2, it is characterised in that by the original of following weight portion
Material composition：
4. architectural attapulgite adhesive according to claim 1, it is characterised in that：The coupling agent is metatitanic acid
Ester coupling agent.
5. a kind of preparation method of architectural attapulgite adhesive as claimed in claim 1, it is characterised in that including
Following steps：
(1) by waste ceramic powder and the well mixed addition grinder of attapulgite, triethanolamine and 3- aminopropyl front threes are added
TMOS, grinder grinding rate is 2000-2500r/min, and milling time is 10-20 minutes, takes out drying, and crushing is ground
Carefully, 50-150 mesh sieves are crossed, mixed-powder is obtained；
(2) pure-acrylic emulsion is added in reactor, heating water bath adds polyvinyl alcohol to 70-90 DEG C in whipping process, stirs
20-30min is mixed, the mixed-powder in step (1) is added, continues to stir 15-20min, the emulsion obtained after stirring is existed
It is spray-dried under 255-275 DEG C of thermal current, is obtained rubber powder；
(3) surplus stock and rubber powder dry mixing obtained in step (2) is uniform, ball milling 1-1.5h crosses 200-250 mesh sieves, and pack is
Can.
6. the preparation method of architectural attapulgite adhesive according to claim 5, it is characterised in that：The step
Suddenly grinder grinding rate is 2000-2400r/min in (1).
7. the preparation method of architectural attapulgite adhesive according to claim 6, it is characterised in that：The step
Suddenly grinder grinding rate is 2400r/min in (1).
8. the preparation method of architectural attapulgite adhesive according to claim 5, it is characterised in that：The step
Suddenly pure-acrylic emulsion is added in reactor in (2), heating water bath is to 80-90 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231517.5A CN106927757A (en) | 2017-04-11 | 2017-04-11 | A kind of architectural attapulgite adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231517.5A CN106927757A (en) | 2017-04-11 | 2017-04-11 | A kind of architectural attapulgite adhesive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106927757A true CN106927757A (en) | 2017-07-07 |
Family
ID=59425620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710231517.5A Withdrawn CN106927757A (en) | 2017-04-11 | 2017-04-11 | A kind of architectural attapulgite adhesive and preparation method thereof |
Country Status (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265252A (en) * | 2013-04-18 | 2013-08-28 | 池州版筑科技有限公司 | Attapulgite binder for light strips used for building walls |
| CN103319130A (en) * | 2013-05-31 | 2013-09-25 | 安徽国电能源设备工程有限公司 | Light board attapulgite binder for building partition walls |
| CN103319135A (en) * | 2013-05-31 | 2013-09-25 | 安徽国电能源设备工程有限公司 | Diatomite binder for light batten for building partition wall |
-
2017
- 2017-04-11 CN CN201710231517.5A patent/CN106927757A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265252A (en) * | 2013-04-18 | 2013-08-28 | 池州版筑科技有限公司 | Attapulgite binder for light strips used for building walls |
| CN103319130A (en) * | 2013-05-31 | 2013-09-25 | 安徽国电能源设备工程有限公司 | Light board attapulgite binder for building partition walls |
| CN103319135A (en) * | 2013-05-31 | 2013-09-25 | 安徽国电能源设备工程有限公司 | Diatomite binder for light batten for building partition wall |
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Application publication date: 20170707 |
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