CN108373729A - A kind of powdered heat insulating inner wall material and its preparation and application - Google Patents
A kind of powdered heat insulating inner wall material and its preparation and application Download PDFInfo
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- CN108373729A CN108373729A CN201611050666.3A CN201611050666A CN108373729A CN 108373729 A CN108373729 A CN 108373729A CN 201611050666 A CN201611050666 A CN 201611050666A CN 108373729 A CN108373729 A CN 108373729A
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- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/003—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/10—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of amides or imides
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Abstract
The invention belongs to build and special wall thermal insulating energy-saving field, and in particular to a kind of powdered heat insulating inner wall material and its preparation and application.The powdered heat insulating inner wall material, composition include the ingredient of following parts by weight：15~80 parts by weight of insulation powder；0.3~10 parts by weight of hydroxypropyl methyl cellulose；0.2~7 parts by weight of anti-crack fiber；10~50 parts by weight of styrene-acrylic emulsion；1.7~36 parts by weight of auxiliary agent.One aspect of the present invention optimization collocation, improves the heat insulation effect of powdered heat insulating inner wall material；On the other hand, using special, the styrene-acrylic emulsion of polymer dispersion powder is can be used as, the water resistance of powdered heat insulating inner wall material is not only increased, also improves convenience of the powdered heat insulating inner wall material in storage and transport.The powdered heat insulating inner wall material of the present invention has many advantages, such as at low cost, water-tolerant, low thermal conductivity, construction is simple, safety and environmental protection, easily storage, convenience in transport.
Description
Technical field
The invention belongs to build and special wall thermal insulating energy-saving field, and in particular to a kind of powdered heat insulating inner wall material and
It is prepared and application.
Background technology
With the quickening of social development, resource and environment problem is shifting, and energy conservation and environmental protection attracts attention further.It is building
Industry, the building energy consumption in China account for the 30% of whole society's total energy consumption, and a series of policies are proposed for building heat preservation to this country
It is energy saving, its huge consumption in resource to push building trade to energy-saving and environment-friendly attention and is mitigated with this.
Heat insulating inner wall product category at present in industry is also fewer, and cost is higher, and market can not receive.It is greasy with keeping the temperature
Filial generation saves the use of common putty for common putty in the case where not influencing cost, while increasing heat insulation effect,
Improve energy-saving efficiency.
Keep in the heat preservation putty to get off under market mechanism now and still have many disadvantages, and with market mechanism with want
That asks is increasingly strict, can also be eliminated at last.The main matter that heat insulating inner wall putty plays heat insulation effect is heat-insulating powder, addition
Amount and physical property have very big influence to heat insulation effect.Most of heat preservation putty heat insulation effects are poor, such as want to reach certain requirement
Heat insulation effect, must just increase its use thickness, so not only increase cost, increase the weight of building itself, also subtract
Lack indoor usable floor area, the shortcomings of poor water resistance, insufficient strength, decreases the service life of heat insulating inner wall putty.By
In these disadvantages, make original heat insulating inner wall putty more difficult receiving and extensive use on the market.
Invention content
In order to overcome the problems of in the prior art, the purpose of the present invention is to provide a kind of cheap, constructions
Property it is good, thermal coefficient is low, water resistance is notable, easily storage, convenient transportation, lightweight powdered heat insulating inner wall material and its prepare and
Using.
To achieve the goals above and other related purposes, the present invention adopt the following technical scheme that：
The first aspect of the present invention provides a kind of powdered heat insulating inner wall material, composition include following parts by weight at
Point：
15~80 parts by weight of insulation powder；0.3~10 parts by weight of hydroxypropyl methyl cellulose；Anti-crack fiber 0.2
~7 parts by weight；10~50 parts by weight of styrene-acrylic emulsion；1.7~36 parts by weight of auxiliary agent.
Preferably, the raw material composition of the styrene-acrylic emulsion includes core portion raw material and shell portion raw material.Preferably, the core portion is former
The weight ratio of material and shell portion raw material is 1:(0.1~2).It is highly preferred that the weight ratio of core portion raw material and shell portion raw material is 1:
(0.8~2).
Preferably, the composition of core portion raw material includes each composition of following parts by weight：0.4~6 part of surfactant, draws
Send out 0.2~1 part of agent, 7~20 parts of core portion soft monomer, 6~15 parts of core portion hard monomer, 0.5~3 part of cross-linking monomer, core portion function list
0.4~4 part of body, 30~60 parts of water.
The composition of shell portion raw material includes each component of following parts by weight：0.5~4 part of surfactant, initiator 0.1
~1 part, 2.5~9 parts of shell portion soft monomer, 13~20 parts of shell portion hard monomer, 0.5~3 part of cross-linking monomer, shell portion function monomer 0.4
~3.5 parts, 20~45 parts of water.
More preferably, core portion soft monomer is selected from ethyl acrylate, n-butyl acrylate, isobutyl acrylate, acrylic acid-
The combination of one or more of 2- ethylhexyls, lauryl methacrylate or n-propyl.
Core portion hard monomer is selected from styrene, acrylic acid, methacrylic acid, methyl methacrylate, methacrylic acid
The combination of one or more of ethyl ester, 2-hydroxyethyl methacry-late or Isobutyl methacrylate.
Core portion function monomer is selected from the combination of one or more of acrylamide or Methacrylamide.
Shell portion soft monomer be selected from ethyl acrylate, n-butyl acrylate, isobutyl acrylate, Isooctyl acrylate monomer or
The combination of one or more of 2 ethyl hexyl acrylate.
Shell portion hard monomer is selected from styrene, methyl methacrylate, acrylic acid, methacrylic acid or methacrylic acid
The combination of one or more of cyclohexyl.
Shell portion function monomer is selected from MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acrylamide, methacryl
The combination of one or more of amine or phosphate.
The cross-linking monomer is selected from the combination of one or both of glycidyl methacrylate or methacrylic acid.
Surfactant and initiator used in the present invention are the surfactant and initiator of this field routine.
More preferably, the initiator is selected from any one of azo-bis-isobutyrate hydrochloride or ammonium persulfate.
The surfactant is selected from OP-10, cetyl trimethylammonium bromide, dodecyl sodium sulfate or dodecyl
A combination of one or more in sodium sulphate.
Preferably, the raw material composition of the styrene-acrylic emulsion further includes electrolyte, the weight of the electrolyte and core portion raw material
Number ratio is 0.1：(45~75).
The electrolyte can reduce critical micelle concentration of surfactant.
Preferably, the insulation powder is selected from perlite, hollow ceramic microspheres, expanded vermiculite, diatomite, diatom page
Any one in rock, sepiolite, nano silicon dioxide or hollow glass micropearl or two or more combinations.
It is highly preferred that the perlite is expanded perlite.The phase transition temperature of the expanded perlite is 30-40 DEG C, phase
Become enthalpy>150KJ/Kg.
Preferably, the unit weight 56-64Kg/m of the expanded vermiculite3, moisture content<5%, grain size is 325 mesh.
Preferably, the diatomaceous SiO2Content>90%, average grain diameter 1100~1300.
Preferably, 325 mesh of grain size of the sepiolite, moisture content<8%.
Preferably, 325 mesh of grain size of the diatomaceous shale.
Preferably, the size range of the nano silicon dioxide is in 1~100nm.
Preferably, 325 mesh of grain size of the hollow ceramic microspheres.
Preferably, the anti-crack fiber is lignocellulosic.Further, the lignocellulosic pH value is 6.5-7.5,
Fiber content>95%, average length is 120-200 μm, dispersibility>99.8%.
Preferably, the hydroxypropyl methyl cellulose is viscosity 10000mPas, and 100 mesh percent of pass are more than 98.5%, coagulate
50-90 DEG C of glue temperature (0.2%).
Preferably, the auxiliary agent be selected from dispersant, antifoaming agent, fungicide, mould inhibitor, coalescents and fire retardant or
The combination of one or more of thixotropic agents.
More preferably, the auxiliary agent includes following component, by weight：
The dispersant, antifoaming agent, fungicide, mould inhibitor, coalescents, fire retardant, thixotropic agents are that this field is conventional.
The dispersant is polyphosphoric acids sodium salt dispersant.Polyphosphoric acids sodium salt dispersant includes workable for specific
But it is not limited to the LOPON NC etc. that new material Science and Technology Co., Ltd. is closed in Guangdong one hundred.
The various antifoaming agent applicatory in this field can be selected in the antifoaming agent, and specific workable antifoaming agent includes but unlimited
In：Germany is bright insult Agitan P803, Air Products companies of the U.S. Surfynol DF-60, DF-70, Blackburn is public
The BYK-017 etc. of the CF-204 of department, BYK company.
The various fungicide applicatory in this field can be selected in the fungicide, and specific workable fungicide includes but unlimited
In：The BEK-568 of Guangzhou company of Guan Zhi Chemical Co., Ltd.s, BIF 10F, the AS of Clariant companies of Britain, U.S. Dow chemistry
BIOBON BP-10, the BP-30 of company, KATHON LX, LXE of Rhom and Hass of the U.S. etc..
The various mould inhibitors applicatory in this field can be selected in the mould inhibitor, and specific workable mould inhibitor includes but unlimited
In：NOPCOCIDE N-98, the N-40-D of beautiful source BF-73, Cognis companies, the AMICAL 48 of U.S.'s Dow Chemical Company,
AMICAL WP, KATHON930 etc..
The various coalescents applicatory in this field can be selected in the coalescents, and specific workable coalescents include
But it is not limited to：The bright icepro of GermanyP871 etc..
The various fire retardants applicatory in this field can be selected in the fire retardant, and specific workable fire retardant includes but unlimited
In：8319 (Doher-8319) of dongle etc..
Preferably, the thixotropic agents are bentonite.
The second aspect of the present invention provides the preparation method of aforementioned powder shape heat insulating inner wall material, including step：
(1) according to the ratio, anti-crack fiber, hydroxypropyl methyl cellulose, thixotropic agents in raw material are mixed, stirs while is added
Polymer dispersion powder made of other auxiliary agents and styrene-acrylic emulsion is uniformly mixing to obtain the auxiliary filler of mixing；
(2) according to the ratio, the insulation powder in raw material is added in the auxiliary filler of mixing, stirs evenly, obtains powder
Shape heat insulating inner wall material.
Preferably, the method further includes the preparation method of styrene-acrylic emulsion, including：
(1) by the core portion monomer in core portion raw material, the shell portion monomer in shell portion raw material prepare respectively nuclear monomer mixed liquor and
Shell monomer mixed liquor；
(2) deionized water 1/5~1/3 in core portion raw material is uniformly mixed spare with initiator, obtains core portion initiator
Solution；Deionized water 1/2~2/3 in shell portion raw material is uniformly mixed with initiator spare, obtains shell portion initiator solution；
(3) the nuclear monomer mixed liquor for accounting for monomer gross mass 10~15% is added in reaction kettle when starting, is then added
In core portion raw material remaining deionized water and all surfaces activating agent, cross-linking monomer, pH adjusting agent and quickly stirring and emulsifying 25~
Core lotion is prepared in 30min；75~80 DEG C are warming up to simultaneously, the 1/4~2/3 of the core portion initiator solution prepared is added dropwise, waits for
Lotion changes colour, and remaining nuclear monomer mixed liquor and core portion initiator solution then is added dropwise simultaneously, be added dropwise heat preservation polymerase 10 .6~
0.9h；
(4) the whole shell monomer mixed liquors of dropwise addition are started simultaneously at, and be added dropwise simultaneously shell portion initiator solution, surfactant,
Cross-linking monomer, after being all added dropwise, it is 7.5~8 to adjust pH value, keeps the temperature 0.6~0.9h；
(5) cool down, discharge, filtering obtains styrene-acrylic emulsion.
Preferably, in step (5), the styrene-acrylic emulsion is spray-dried to can be obtained redispersable latex powder.
Preferably, when the raw material of the styrene-acrylic emulsion further includes electrolyte, step (3) includes：Monomer will be accounted for when beginning
The nuclear monomer mixed liquor of gross mass 10~15% is added in reaction kettle, be then added in core portion raw material remaining deionized water and
Core breast is prepared in all surfaces activating agent, cross-linking monomer, pH adjusting agent, electrolyte and quickly 25~30min of stirring and emulsifying
Liquid.
Preferably, the pH adjusting agent is selected from NaOH, glacial acetic acid or AMP95.
The third aspect of the present invention provides application of the aforementioned powder shape heat insulating inner wall material as heat-insulating construction material.
Compared with prior art, the present invention has the advantages that：
On the one hand the powdered heat insulating inner wall material of the present invention screens various insulation powders, optimization collocation,
Improve the heat insulation effect of powdered heat insulating inner wall material；On the other hand, using special, it can be used as polymer dispersion powder
Styrene-acrylic emulsion, not only increase the water resistance of powdered heat insulating inner wall material, also improve powdered heat insulating inner wall material and exist
Convenience in storage and transport.The powdered heat insulating inner wall material of the present invention has at low cost, water-tolerant, low heat conduction system
The advantages that number, construction is simple, safety and environmental protection, easy storage, convenience in transport.It can not only with the powdered heat insulating inner wall material of the present invention
It is used instead of different inner wall putties in the market, while there is good heat insulation effect, can effectively reduced the heat transfer coefficient of wall, subtract
The use of other thermal insulation materials is substituted less or completely.
Specific implementation mode
Before further describing the specific embodiments of the present invention, it should be appreciated that protection scope of the present invention is not limited to down
State specific specific embodiment；It is also understood that the term used in the embodiment of the present invention is specific specific in order to describe
Embodiment, the protection domain being not intended to be limiting of the invention.The test method of actual conditions is not specified in the following example,
Usually according to normal condition, or according to the condition proposed by each manufacturer.
When embodiment provides numberical range, it should be appreciated that except non-present invention is otherwise noted, two ends of each numberical range
Any one numerical value can be selected between point and two endpoints.Unless otherwise defined, in the present invention all technologies for using and
Scientific terminology is identical as the normally understood meaning of those skilled in the art of the present technique.Except used in embodiment specific method, equipment,
Outside material, the record according to those skilled in the art to the grasp of the prior art and the present invention can also use and this
Any method, equipment and the material of the similar or equivalent prior art of method, equipment described in inventive embodiments, material come real
The existing present invention.
Unless otherwise stated, disclosed in this invention experimental method, detection method, preparation method be all made of this technology neck
Domain routine techniques.
Embodiment 1
One, the preparation of styrene-acrylic emulsion (redispersable latex powder)
(1) core portion raw material forms
(2) shell portion raw material forms
By the core portion monomer in above-mentioned reaction composition formula center portion raw material, the shell portion monomer in shell portion raw material prepares core respectively
Monomer mixed solution and shell monomer mixed liquor.Deionized water 1/3 in core portion raw material is uniformly mixed with initiator spare, obtains core
Portion's initiator solution.Deionized water 1/2 in shell portion raw material is uniformly mixed with initiator spare, it is molten to obtain shell portion initiator
Liquid.The nuclear monomer mixed liquor for accounting for monomer gross mass 10% is added in reaction kettle when beginning, is then added in core portion raw material and remains
After remaining deionized water and all surfaces activating agent, cross-linking monomer, pH adjusting agent and quickly stirring and emulsifying 25min, is prepared
Core lotion.75 DEG C are warming up to simultaneously, the 1/2 of the core portion initiator solution prepared is added dropwise, waits for that lotion changes colour, is then added dropwise simultaneously surplus
Remaining nuclear monomer mixed liquor and core portion initiator solution after heat preservation polymerase 10 .7h is added dropwise, starts whole shell monomers are added dropwise mixed
Liquid is closed, and shell portion initiator solution, surfactant, cross-linking monomer are added dropwise simultaneously, after being all added dropwise, it is 8 to adjust pH value,
Keep the temperature 0.7h.Finally cool down, discharge, filtering obtains styrene-acrylic emulsion, its spray-dried redispersable latex powder.
Two, the preparation of powdered heat insulating inner wall material
The raw material information of each component is as follows：
Expanded perlite is 30-40 DEG C of phase transition temperature, enthalpy of phase change>150KJ/Kg, it is commercially available；
Dispersant is the LOPON NC that new material Science and Technology Co., Ltd. is closed in Guangdong one hundred；
Antifoaming agent is the bright icepro Agitan P803 of Germany；
Fungicide is the BEK-568 of Guangzhou company of Guan Zhi Chemical Co., Ltd.s；
Mould inhibitor is beautiful source BF-73；
Coalescents are the P871 of the bright icepro of Germany；
Fire retardant is the 8319 of dongle；
Anti-crack fiber is the lignin fibre B-500 of Henan Qi Xiang Industrial Co., Ltd.s；
Hydroxypropyl methyl cellulose is the HMPC10000S of Wuqiao Shuan Sheng celluloses Co., Ltd；
Other raw materials can pass through acquisition purchased in market.
By the formula ratio of the present embodiment, bentonite, anti-crack fiber, hydroxypropyl methyl cellulose are added to the container and are mixed
Uniformly, dispersant, antifoaming agent, fungicide, mould inhibitor, P871 (coalescents), fire-retardant is sequentially added into while then stirring
Agent, styrene-acrylic emulsion (polymer dispersion powder), stir evenly, mixing time 45min, be eventually adding expanded perlite, diatomaceous shale,
Nano silicon dioxide stirs evenly, mixing time 60min.Discharging, detection, obtains granular powder shape heat insulating inner wall material.
Embodiment 2
One, the preparation of styrene-acrylic emulsion (redispersable latex powder)
(1) core portion raw material forms
(2) shell portion raw material forms
By the core portion monomer in above-mentioned reaction composition formula center portion raw material, the shell portion monomer in shell portion raw material prepares core respectively
Monomer mixed solution and shell monomer mixed liquor.Deionized water 1/4 in core portion raw material is uniformly mixed with initiator spare, obtains core
Portion's initiator solution.Deionized water 2/3 in shell portion raw material is uniformly mixed with initiator spare, it is molten to obtain shell portion initiator
Liquid.The nuclear monomer mixed liquor for accounting for monomer gross mass 15% is added in reaction kettle when beginning, is then added in core portion raw material and remains
After remaining deionized water and all surfaces activating agent, cross-linking monomer, pH adjusting agent, electrolyte and quickly stirring and emulsifying 25min, system
It is standby to obtain core lotion.It is warming up to 78 DEG C simultaneously, the 1/4 of the above-mentioned core portion initiator solution prepared is added dropwise, waits for that lotion changes colour, then
Remaining nuclear monomer mixed liquor and core portion initiator solution is added dropwise simultaneously, after heat preservation polymerase 10 .6h is added dropwise, starts to be added dropwise complete
Portion's shell monomer mixed liquor, and shell portion initiator solution, surfactant, cross-linking monomer are added dropwise simultaneously, after being all added dropwise, adjust
It is 7.5 to save pH value, keeps the temperature 0.6h.Finally cool down, discharge, filtering obtains styrene-acrylic emulsion, its spray-dried Redispersable latex
Powder.
Two, the preparation of powdered heat insulating inner wall material
The raw material information of each component is as follows：
Expanded perlite is 30-40 DEG C of phase transition temperature, enthalpy of phase change>150KJ/Kg, it is commercially available；
Diatomite is purchased from Lingshou County kind stone ore powder factory；
Dispersant is the LOPON NC that new material Science and Technology Co., Ltd. is closed in Guangdong one hundred；
Antifoaming agent is the bright icepro Agitan P803 of Germany；
Fungicide is the BEK-568 of Guangzhou company of Guan Zhi Chemical Co., Ltd.s；
Mould inhibitor is beautiful source BF-73；
Coalescents are the P871 of the bright icepro of Germany；
Fire retardant is the 8319 of dongle；
Anti-crack fiber is the lignin fibre B-500 of Henan Qi Xiang Industrial Co., Ltd.s；
Hydroxypropyl methyl cellulose is the HMPC10000S of Wuqiao Shuan Sheng celluloses Co., Ltd；
Other raw materials can pass through acquisition purchased in market.
By the formula ratio of the present embodiment, bentonite, anti-crack fiber, hydroxypropyl methyl cellulose are added to the container and are mixed
Uniformly, dispersant, antifoaming agent, fungicide, mould inhibitor, coalescents, fire retardant, phenylpropyl alcohol are sequentially added into while then stirring
Lotion (polymer dispersion powder), stirs evenly, and mixing time 30min is eventually adding expanded perlite, diatomite, hollow ceramic
Microballon stirs evenly, mixing time 60min.Discharging, detection, obtains granular powder shape heat insulating inner wall material.
Embodiment 3
One, the preparation of styrene-acrylic emulsion (redispersable latex powder)
(1) core portion raw material forms
(2) shell portion raw material forms
By the core portion monomer in above-mentioned reaction composition formula center portion raw material, the shell portion monomer in shell portion raw material prepares core respectively
Monomer mixed solution and shell monomer mixed liquor.Deionized water 1/5 in core portion raw material is uniformly mixed with initiator spare, obtains core
Portion's initiator solution.Deionized water 3/5 in shell portion raw material is uniformly mixed with initiator spare, it is molten to obtain shell portion initiator
Liquid.The nuclear monomer mixed liquor for accounting for monomer gross mass 10% is added in reaction kettle when beginning, is then added in core portion raw material and remains
After remaining deionized water and all surfaces activating agent, cross-linking monomer, pH adjusting agent, electrolyte and quickly stirring and emulsifying 30min, system
It is standby to obtain core lotion.It is warming up to 80 DEG C simultaneously, the 2/3 of the above-mentioned core portion initiator solution prepared is added dropwise, waits for that lotion changes colour, then
Remaining nuclear monomer mixed liquor and core portion initiator solution is added dropwise simultaneously, after heat preservation polymerase 10 .9h is added dropwise, starts to be added dropwise complete
Portion's shell monomer mixed liquor, and shell portion initiator solution, surfactant, cross-linking monomer are added dropwise simultaneously, after being all added dropwise, adjust
It is 8 to save pH value, keeps the temperature 0.9h.Finally cool down, discharge, filters to get styrene-acrylic emulsion, it is spray-dried to obtain Redispersable latex
Powder.
Two, the preparation of powdered heat insulating inner wall material
The raw material information of each component is as follows：
Expanded perlite is 30-40 DEG C of phase transition temperature, enthalpy of phase change>150KJ/Kg, it is commercially available；
Close the LOPON NC of new material Science and Technology Co., Ltd. in Guangdong one hundred；
Antifoaming agent is the bright icepro Agitan P803 of Germany；
Fungicide is the BEK-568 of Guangzhou company of Guan Zhi Chemical Co., Ltd.s；
Mould inhibitor is beautiful source BF-73；
Coalescents are the P871 of the bright icepro of Germany；
Fire retardant is the 8319 of dongle；
Anti-crack fiber is the lignin fibre B-500 of Henan Qi Xiang Industrial Co., Ltd.s；
Hydroxypropyl methyl cellulose is the HMPC10000S of Wuqiao Shuan Sheng celluloses Co., Ltd；
Other raw materials can be obtained by approach purchased in market.
By the formula ratio of the present embodiment, bentonite, anti-crack fiber, hydroxypropyl methyl cellulose are added to the container and are mixed
Uniformly, dispersant, antifoaming agent, fungicide, mould inhibitor, P871 (coalescents), fire-retardant is sequentially added into while then stirring
Agent, styrene-acrylic emulsion (polymer dispersion powder), stir evenly, and mixing time 25min is eventually adding expanded perlite and stirs evenly,
Mixing time is 45min.Discharging, detection, obtains powdered heat insulating inner wall material.
Embodiment 4
One, the preparation of styrene-acrylic emulsion (redispersable latex powder)
(1) core portion raw material forms
(2) shell portion raw material forms
By the core portion monomer in above-mentioned reaction composition formula center portion raw material, the shell portion monomer in shell portion raw material prepares core respectively
Monomer mixed solution and shell monomer mixed liquor.Deionized water 1/3 in core portion raw material is uniformly mixed with initiator spare, obtains core
Portion's initiator solution.Deionized water 2/3 in shell portion raw material is uniformly mixed with initiator spare, it is molten to obtain shell portion initiator
Liquid.The nuclear monomer mixed liquor for accounting for monomer gross mass 10% is added in reaction kettle when beginning, is then added in core portion raw material and remains
After remaining deionized water and all surfaces activating agent, cross-linking monomer, pH adjusting agent, electrolyte and quickly stirring and emulsifying 30min, system
It is standby to obtain core lotion.It is warming up to 75 DEG C simultaneously, the 1/2 of the above-mentioned core portion initiator solution prepared is added dropwise, waits for that lotion changes colour, then
Remaining nuclear monomer mixed liquor and core portion initiator solution is added dropwise simultaneously, after heat preservation polymerase 10 .6h is added dropwise, starts to be added dropwise complete
Portion's shell monomer mixed liquor, and shell portion initiator solution, surfactant, cross-linking monomer are added dropwise simultaneously, after being all added dropwise, adjust
It is 7.5 to save pH value, keeps the temperature 0.6h.Finally cool down, discharge, filtering obtains styrene-acrylic emulsion, its spray-dried Redispersable latex
Powder.
Two, the preparation of powdered heat insulating inner wall material
The raw material information of each component is as follows：
Expanded perlite is 30-40 DEG C of phase transition temperature, enthalpy of phase change>150KJ/Kg, it is commercially available；
Close the LOPON NC of new material Science and Technology Co., Ltd. in Guangdong one hundred；
Antifoaming agent is the bright icepro Agitan P803 of Germany；
Fungicide is the BEK-568 of Guangzhou company of Guan Zhi Chemical Co., Ltd.s；
Mould inhibitor is beautiful source BF-73；
The coalescents are the P871 of the bright icepro of Germany；
Fire retardant is the 8319 of dongle；
Anti-crack fiber is the lignin fibre B-500 of Henan Qi Xiang Industrial Co., Ltd.s；
Hydroxypropyl methyl cellulose is the HMPC10000S of Wuqiao Shuan Sheng celluloses Co., Ltd；
Other raw materials can be obtained by approach purchased in market.
By the formula ratio of the present embodiment, bentonite, anti-crack fiber, hydroxypropyl methyl cellulose are added to the container and are mixed
Uniformly, dispersant, antifoaming agent, fungicide, mould inhibitor, coalescents, fire retardant, phenylpropyl alcohol are sequentially added into while then stirring
Lotion (polymer dispersion powder), stirs evenly, and mixing time 30min is eventually adding expanded perlite, diatomite, nano-silica
SiClx stirs evenly, mixing time 70min.Discharging, detection, obtains granular powder shape heat insulating inner wall material.
The detection of 5 powdered heat insulating inner wall material of embodiment
One, the performance detection of powdered heat insulating inner wall material
(1) experimental subjects：The powdered heat insulating inner wall material that embodiment 1 to 4 obtains
(2) experimental method：Experimental method refers to JG/T298-2010《Architecture indoor putty》
The detection data of 1 powdered heat insulating inner wall material of table
Two, the thermal coefficient detection of powdered heat insulating inner wall material
(1) experimental subjects：
Experimental example：Powdered heat insulating inner wall material prepared by the embodiment of the present invention 1 to 4；Comparative example：That buys in the market is general
Logical inner wall putty.
(2) experimental method：
Experiment content：Test the practical thermal coefficient after putty construction and maintenance
Experimental basis：GB/T 10295-2008《Technology of Steady State Thermal Resistance of Thermal Insulating Material and measurement heat-flow meter method in relation to characteristic》
(3) experimental result
The thermal coefficient (W/ (mK)) of 2 powdered heat insulating inner wall material of table
| Common inner wall putty | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| ＞ 0.55 | 0.055 | 0.051 | 0.049 | 0.044 |
Three, the practical heat insulation effect test of powdered heat insulating inner wall material
(1) experimental subjects：
Experimental example：The present invention is powdered heat insulating inner wall material prepared by embodiment 1 to 4；Comparative example：It buys in the market
Common inner wall putty.
(2) experimental method
Experiment content：Practical heat insulation effect after test powders shape heat insulating inner wall material construction and maintenance
Specific steps：
1) on cubic tin, wherein the different product of the same thickness of three surface constructions, remaining one side is blank
Face, without construction；
2) it waits after conserving, water is injected in tank, and keep 50 DEG C of water temperature constant temperature；
3) surface temperature for using infrared temperature-measuring gun blank testing face, is defined as T1, and sample to be tested surface temperature is T2；Use T1
The temperature difference between T2 embodies heat insulation effect；
4) step 1) is pressed to the powdered heat insulating inner wall material of whole and city that 3), in testing example 2 prepared by method respectively
The common inner wall putty bought on field.
Under enclosed environment, the environment temperature of test is 20 ± 2 DEG C, humidity 45%-60%, and specific data are as follows：
The surface temperature T2 (DEG C) of the different pre- samples of table 3, T1=49.6 DEG C
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that for those skilled in the art, under the premise of not departing from the method for the present invention, can also make
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution of any equivalent variations made by above-described embodiment, still fall within the range of technical scheme of the present invention
It is interior.
Claims (10)
1. a kind of powdered heat insulating inner wall material, composition includes the ingredient of following parts by weight：15~80 weight of insulation powder
Measure part；0.3~10 parts by weight of hydroxypropyl methyl cellulose；0.2~7 parts by weight of anti-crack fiber；10~50 parts by weight of styrene-acrylic emulsion；
1.7~36 parts by weight of auxiliary agent.
2. powdered heat insulating inner wall material according to claim 1, which is characterized in that further include any in following characteristics
Item is multinomial：(1) the raw material composition of the styrene-acrylic emulsion includes core portion raw material and shell portion raw material；And/or (2) described insulation
Powder is selected from perlite, hollow ceramic microspheres, expanded vermiculite, diatomite, diatomaceous shale, sepiolite, nano silicon dioxide or sky
Any one in heart glass microballoon or two or more combinations；And/or (3) described hydroxypropyl methyl cellulose is viscosity
10000mPas, 100 mesh percent of pass are more than 98.5%, 50-90 DEG C of gelling temp (0.2%)；And/or (4) described anti-crack fiber
For lignocellulosic；And/or (5) described auxiliary agent is selected from dispersant, antifoaming agent, fungicide, mould inhibitor, coalescents and resistance
Fire the combination of one or more of agent or thixotropic agents.
3. powdered heat insulating inner wall material according to claim 2, which is characterized in that the composition of core portion raw material includes
Each composition of following parts by weight：0.4~6 part of surfactant, 0.2~1 part of initiator, 7~20 parts of core portion soft monomer, core portion is hard
6~15 parts of monomer, 0.5~3 part of cross-linking monomer, 0.4~4 part of core portion function monomer, 30~60 parts of water；The group of shell portion raw material
At each component for including following parts by weight：0.5~4 part of surfactant, 0.1~1 part of initiator, shell portion soft monomer 2.5~9
Part, 13~20 parts of shell portion hard monomer, 0.5~3 part of cross-linking monomer, 0.4~3.5 part of shell portion function monomer, 20~45 parts of water.
4. powdered heat insulating inner wall material according to claim 3, which is characterized in that further include any in following characteristics
Item is multinomial：(1) core portion soft monomer is selected from ethyl acrylate, n-butyl acrylate, isobutyl acrylate, acrylic acid -2-
The combination of one or more of ethylhexyl, lauryl methacrylate or n-propyl；And/or (2)
Core portion hard monomer is selected from styrene, acrylic acid, methacrylic acid, methyl methacrylate, ethyl methacrylate, methyl
The combination of one or more of acrylic acid -2- hydroxyl ethyl esters or Isobutyl methacrylate；And/or (3) described core portion work(
It can combination of the monomer selected from one or more of acrylamide or Methacrylamide；And/or (4) described soft list in shell portion
Body is in ethyl acrylate, n-butyl acrylate, isobutyl acrylate, Isooctyl acrylate monomer or 2 ethyl hexyl acrylate
A combination of one or more；And/or (5) described shell portion hard monomer be selected from styrene, methyl methacrylate, acrylic acid,
The combination of one or more of methacrylic acid or cyclohexyl methacrylate；And/or (6) described shell portion function monomer
Selected from one or both of MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acrylamide, Methacrylamide or phosphate
Above combination；And/or one kind in glycidyl methacrylate or methacrylic acid of (7) described cross-linking monomer or
Two kinds of combination；And/or (8) described initiator is selected from any one of azo-bis-isobutyrate hydrochloride or ammonium persulfate；And/or
(9) surfactant is selected from OP-10, cetyl trimethylammonium bromide, dodecyl sodium sulfate or dodecyl sulphate
A combination of one or more in sodium.
5. powdered heat insulating inner wall material according to claim 2, which is characterized in that the auxiliary agent includes following component,
By weight：
6. powdered heat insulating inner wall material according to claim 1, which is characterized in that the raw material of the styrene-acrylic emulsion forms
It further include electrolyte.
7. the preparation method of powdered heat insulating inner wall material as described in claim 1~6 any claim, including step：
(1) according to the ratio, anti-crack fiber, hydroxypropyl methyl cellulose, thixotropic agents in raw material are mixed, stirs while other is added
Polymer dispersion powder made of auxiliary agent and styrene-acrylic emulsion is uniformly mixing to obtain the auxiliary filler of mixing；
(2) according to the ratio, the insulation powder in raw material is added in the auxiliary filler of mixing, is stirred evenly, obtained in powdered
Wall thermal insulation material.
8. preparation method according to claim 7, which is characterized in that the method further includes the preparation side of styrene-acrylic emulsion
The preparation method of method, the styrene-acrylic emulsion includes：
(1) by the core portion monomer in core portion raw material, the shell portion monomer in shell portion raw material prepares nuclear monomer mixed liquor and shell list respectively
Body mixed liquor；
(2) deionized water 1/5~1/3 in core portion raw material is uniformly mixed spare with initiator, obtains core portion initiator solution；
Deionized water 1/2~2/3 in shell portion raw material is uniformly mixed with initiator spare, obtains shell portion initiator solution；
(3) the nuclear monomer mixed liquor for accounting for monomer gross mass 10~15% is added in reaction kettle when starting, core portion is then added
In raw material remaining deionized water and all surfaces activating agent, cross-linking monomer, pH adjusting agent and quickly stirring and emulsifying 25~
Core lotion is prepared in 30min；75~80 DEG C are warming up to simultaneously, the 1/4~2/3 of the core portion initiator solution prepared is added dropwise, waits for
Lotion changes colour, and remaining nuclear monomer mixed liquor and core portion initiator solution then is added dropwise simultaneously, be added dropwise heat preservation polymerase 10 .6~
0.9h；
(4) the whole shell monomer mixed liquors of dropwise addition are started simultaneously at, and shell portion initiator solution, surfactant, crosslinking are added dropwise simultaneously
Monomer, after being all added dropwise, it is 7.5~8 to adjust pH value, keeps the temperature 0.6~0.9h；
(5) cool down, discharge, filtering obtains styrene-acrylic emulsion.
9. according to the method described in claim 8, it is characterized in that, when the raw material of the styrene-acrylic emulsion further includes electrolyte,
Step (3) includes：The nuclear monomer mixed liquor for accounting for monomer gross mass 10~15% is added in reaction kettle when beginning, is then added
Remaining deionized water and all surfaces activating agent in core portion raw material, cross-linking monomer, pH adjusting agent, electrolyte and quick stirring breast
Change 25~30min, core lotion is prepared.
10. the powdered heat insulating inner wall material as described in claim 1~6 any claim is the application of heat-insulating construction material.
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| CN201610980795 | 2016-11-08 | ||
| CN2016109807956 | 2016-11-08 |
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Cited By (1)
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