CN103253953A - Energy-saving environment-friendly composite thermal insulation material for building - Google Patents
Energy-saving environment-friendly composite thermal insulation material for building Download PDFInfo
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- CN103253953A CN103253953A CN2013101564596A CN201310156459A CN103253953A CN 103253953 A CN103253953 A CN 103253953A CN 2013101564596 A CN2013101564596 A CN 2013101564596A CN 201310156459 A CN201310156459 A CN 201310156459A CN 103253953 A CN103253953 A CN 103253953A
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Abstract
The invention discloses an energy-saving environment-friendly composite thermal insulation material for a building. The energy-saving environment-friendly composite thermal insulation material is prepared from coal ashes, sericite powder, lignocellulosic powder, polypropylene fibers, quick lime, a cementing material, perlite, a foaming agent, an adjustable solidification agent, a water reducing agent, a foam stabilizer and an activator, wherein the particle fineness of the coal ashes is 300-600 meshes, the particle fineness of the sericite powder is 3000-4000 meshes, and the particle fineness of the lignocellulosic powder is 80-100 meshes.
Description
Technical field
The present invention relates to a kind of lagging material, be specifically related to a kind of energy saving and environment friendly compound insulating material for building.
Background technology
Energy-conserving and environment-protective have become the key subjects that the 21 century mankind must face, and have also become the important topic that our building trade must put forth effort to solve.The thermal and insulating performance that improves the house is important measures of building energy-saving consumption reduction, many new buildings and many old buildings are by sticking the way of heat insulating layer in the hope of reaching the heat insulation and preservation effect in the room at exterior wall and interior wall under the advocating of country, namely the lagging material by interior exterior wall stops thermal radiation to transmission within doors in hot summer, reduce the energy consumption of household electrical appliance such as air-conditioning, also stop indoor comparatively high temps to be transmitted to the outdoor of cold by the lagging material of interior exterior wall at cold winter.At present, this heat insulating layer material that uses on the market mainly is the organic class of polymer and mineral-type materials.Polymer heat preserving and insulating material commonly used comprises: expanded polystyrene foaming plate, crosslinked polyethylene foaming plate, foaming polyurethane plate.Inorganic materials sheet material comprises: sent out bag cement plate and foaming chlorine oxygen shackles cement plate.Wherein the major advantage of organic materials plate is that density is little, insulating efficiency is high, good toughness, shortcoming is that fire performance is poor, very easily light after catching fire, and can in combustion processes, produce toxic smog, serious threat to life safety, and have loss of properties on aging, defectives such as work-ing life is short, installation sequence is complicated, cost height.The advantage of inorganic materials class heat insulating layer is: cost is low, difficult combustion, and non smoke produces during fire, ageing-resistant performance is good, with the same life-span of buildings, install easily, characteristics such as cost is low, shortcoming is weight, the material shortage toughness that can increase whole building.Building energy conservation is the fundamental policy of country, and the task of energy-saving and emission-reduction is very arduous, and the building energy conservation New Set has been listed country " 12 " planning in, is the indispensable and demanding task that must finish, also is the needs of development low-carbon economy.Along with the materials for wall continuous development of the reform of country, the application percentage of novel wall material and energy-saving and heat-insulating material is increased year by year, but requirement and the make of performance of heat protective material proposed new requirement.Lagging material commonly used at present is organic insulation materials such as EPS, XPS and urethane, this type of material thermal conductivity is little, good insulation preformance, but strength ratio is lower, do not have fire-proof function, do not reach the fire-fighting requirement, so this class material all can't satisfy the building service requirements from aspects such as intensity, fire prevention, weather resistance, can't satisfy the requirement of green energy conservation building and social sustainable development.The fire failure that is caused by architectural exterior insulation system and decorative material that takes place in succession shows, the fire safety problem of building energy conservation and building decoration is very outstanding, need to be resolved hurrily.One of reason that the civilian high building in CCTV building, Shanghai that State Council circulates a notice of soon and Shenyang apartment hotel big fire take place is exactly " the defective warming plate of a large amount of uses of relevant unit in charge of construction ".The problem of building energy conservation and two aspects of Building Fire Protection needs to consider every possible angle, and overlooks either of the two.Building Fire Protection is had a great responsibility, must not be not in place because of technology, control measures, and the security against fire of influence building, the initiation fire accident takes place, and causes heavy losses for the country and people's lives and properties.Along with social development, the fire resistance of buildings more and more comes into one's own, requirement to the Building Fire Protection grade also improves greatly, the Ministry of Public Security, main building in portion's " covil construction outer heat preservation system and decoration of exterior wall fire prevention temporary provisions " have required the covil construction heat insulating material for external should adopt A level non-fire material, when adopting B
1During the level lagging material, horizontal fire-blocking belt should be set.Usually A level material has cement expanded perlite, gas concrete piece, rock wool, glass wool etc., cement expanded perlite, gas concrete piece unit weight is bigger, and thermal conductivity is bigger, and there are certain influence in rock wool, glass wool to environment and personnel health in producing and using
Summary of the invention
The technical problem to be solved in the present invention is at existing defective, provide a kind of can environmental protection, the material of construction of good, the lightweight of fire performance.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of energy saving and environment friendly compound insulating material for building, it is characterized in that, and formed according to weight fraction by following each component:
Particle fineness is the flyash 2-5 of 300-600
Particle fineness is 3000-4000 purpose sericite in powder 1-4
Particle fineness 80-100 purpose wood fiber powder 0.5-2
Polypropylene fibre 5-8
Unslaked lime 10-15
Gelling material 60-80
Perlite 10-15
Whipping agent 2-5
Adjustable solidification agent 1-2
Water reducer 0.5-1
Suds-stabilizing agent 2-6
Exciting agent 1-4
Wherein, gelling material is ordinary Portland cement; Whipping agent is at least a in aluminium powder, the hydrogen peroxide; Adjustable solidification agent is one or more in desulfurated plaster, phosphogypsum, the plaster of paris; Water reducer is one or more in naphthalene water reducer, polycarboxylate water-reducer, sodium lignin sulfonate water reducer, calcium lignin sulfonate water depressor, the sulfamate water reducer; Exciting agent is one or more in sodium hydroxide, calcium hydroxide, water glass, Tai-Ace S 150, sodium bicarbonate, hexamethylenetetramine, the trolamine, after flyash, sericite in powder, wood fibre grinding reached granularity requirements, add polypropylene fibre, gelling material, whipping agent, unslaked lime, fully stir, all kinds of powders are evenly distributed, form the powder compound; Water reducer, suds-stabilizing agent, exciting agent is evenly soluble in water, form mixing liquid; The powder compound is fully mixed with mixing liquid, form even slurry and inject mould, leave standstill under the room temperature and treat its moulding, above-mentioned moulding sample is put into autoclave, carry out steam press maintenance after the sealing, namely obtain light building material through cutting, polishing.
Making processes is:
Step 1: get material, each component is got material according to weight fraction:
Step 2: batch mixing, flyash in the step 1, sericite in powder, wood fiber powder adding polypropylene fibre, gelling material, whipping agent, unslaked lime are fully stirred, all kinds of powders are evenly distributed, form the powder compound and put into mixing machine, hang down and mix high mixing, treat that temperature reaches 145 degrees centigrade, oven dry moisture mixes, put into cold mixing, cold mixing to 30 degree, water reducer, suds-stabilizing agent, exciting agent is evenly soluble in water, form mixing liquid; The powder compound is fully mixed with mixing liquid;
Step 3: extrusion molding in step 2 gained batch mixing input forcing machine, is under the condition of 56A at 189 degrees centigrade, operating power 30KW, working current, is crushed to the section bar work in-process,
Step 4: typing, carry out deepfreeze in the water with 10 ℃ of step 3 gained section bar work in-process immersions, finish the typing of section bar, obtain section bar,
Step 5: the section bar that obtains is cut, carry out deep processing according to the length of customer need,
Step 6: dedusting, the first artificial dust of removing the section bar surface, use the further second removal dust of suction cleaner then after, pass through the twice electrostatic precipitation again,
Step 7: color matching, adopt the color matching of high-tech heat treating method,
Step 8: surface treatment, technology such as adopt attached, hard, light, face, draw carry out obtaining finished product after the multilayer ultraviolet light polymerization handles.
Embodiment
Below the present invention is further elaborated.
A kind of energy saving and environment friendly compound insulating material for building is characterized in that, is made up of according to weight fraction following each component:
Particle fineness is the flyash 2 of 300-600
Particle fineness is 3000-4000 purpose sericite in powder 1
Particle fineness 80-100 purpose wood fiber powder 0.5
Polypropylene fibre 5
Unslaked lime 10
Gelling material 60
Perlite 10
Whipping agent 2
Adjustable solidification agent 1
Water reducer 0.5
Suds-stabilizing agent 2
Exciting agent 1
Wherein, gelling material is ordinary Portland cement; Whipping agent is at least a in aluminium powder, the hydrogen peroxide; Adjustable solidification agent is one or more in desulfurated plaster, phosphogypsum, the plaster of paris; Water reducer is one or more in naphthalene water reducer, polycarboxylate water-reducer, sodium lignin sulfonate water reducer, calcium lignin sulfonate water depressor, the sulfamate water reducer; Exciting agent is one or more in sodium hydroxide, calcium hydroxide, water glass, Tai-Ace S 150, sodium bicarbonate, hexamethylenetetramine, the trolamine, after flyash, sericite in powder, wood fibre grinding reached granularity requirements, add polypropylene fibre, gelling material, whipping agent, unslaked lime, fully stir, all kinds of powders are evenly distributed, form the powder compound; Water reducer, suds-stabilizing agent, exciting agent is evenly soluble in water, form mixing liquid; The powder compound is fully mixed with mixing liquid, form even slurry and inject mould, leave standstill under the room temperature and treat its moulding, above-mentioned moulding sample is put into autoclave, carry out steam press maintenance after the sealing, namely obtain light building material through cutting, polishing.Concrete making processes is:
Step 1: get material, each component is formed according to weight fraction:
Particle fineness is the flyash 2 of 300-600
Particle fineness is 3000-4000 purpose sericite in powder 1
Particle fineness 80-100 purpose wood fiber powder 0.5
Polypropylene fibre 5
Unslaked lime 10
Gelling material 60
Perlite 10
Whipping agent 2
Adjustable solidification agent 1
Water reducer 0.5
Suds-stabilizing agent 2
Exciting agent 1
Step 2: batch mixing, flyash in the step 1, sericite in powder, wood fiber powder adding polypropylene fibre, gelling material, whipping agent, unslaked lime are fully stirred, all kinds of powders are evenly distributed, form the powder compound and put into mixing machine, hang down and mix high mixing, treat that temperature reaches 145 degrees centigrade, oven dry moisture mixes, put into cold mixing, cold mixing to 30 degree, water reducer, suds-stabilizing agent, exciting agent is evenly soluble in water, form mixing liquid; The powder compound is fully mixed with mixing liquid;
Step 3: extrusion molding in step 2 gained batch mixing input forcing machine, is under the condition of 56A at 189 degrees centigrade, operating power 30KW, working current, is crushed to the section bar work in-process,
Step 4: typing, carry out deepfreeze in the water with 10 ℃ of step 3 gained section bar work in-process immersions, finish the typing of section bar, obtain section bar, above-mentioned moulding sample is put into autoclave, carry out steam press maintenance after the sealing, pressure is 1.5-2.0Mpa, temperature is 150 ℃-250 ℃, constant temperature and pressure 8-12h
Step 5: the section bar that obtains is cut, carry out deep processing according to the length of customer need,
Step 6: dedusting, the first artificial dust of removing the section bar surface, use the further second removal dust of suction cleaner then after, pass through the twice electrostatic precipitation again,
Step 7: color matching, adopt the color matching of high-tech heat treating method,
Step 8: surface treatment, technology such as adopt attached, hard, light, face, draw carry out obtaining finished product after the multilayer ultraviolet light polymerization handles.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (3)
1. an energy saving and environment friendly compound insulating material for building is characterized in that, is made up of according to weight fraction following each component:
Particle fineness is the flyash 2-5 of 300-600
Particle fineness is 3000-4000 purpose sericite in powder 1-4
Particle fineness 80-100 purpose wood fiber powder 0.5-2
Polypropylene fibre 5-8
Unslaked lime 10-15
Gelling material 60-80
Perlite 10-15
Whipping agent 2-5
Adjustable solidification agent 1-2
Water reducer 0.5-1
Suds-stabilizing agent 2-6
Exciting agent 1-4
Wherein, gelling material is ordinary Portland cement; Whipping agent is at least a in aluminium powder, the hydrogen peroxide; Adjustable solidification agent is one or more in desulfurated plaster, phosphogypsum, the plaster of paris; Water reducer is one or more in naphthalene water reducer, polycarboxylate water-reducer, sodium lignin sulfonate water reducer, calcium lignin sulfonate water depressor, the sulfamate water reducer; Exciting agent is one or more in sodium hydroxide, calcium hydroxide, water glass, Tai-Ace S 150, sodium bicarbonate, hexamethylenetetramine, the trolamine, after flyash, sericite in powder, wood fibre grinding reached granularity requirements, add polypropylene fibre, gelling material, whipping agent, unslaked lime, fully stir, all kinds of powders are evenly distributed, form the powder compound; Water reducer, suds-stabilizing agent, exciting agent is evenly soluble in water, form mixing liquid; The powder compound is fully mixed with mixing liquid, form even slurry and inject mould, leave standstill under the room temperature and treat its moulding, above-mentioned moulding sample is put into autoclave, carry out steam press maintenance after the sealing, namely obtain light building material through cutting, polishing.
2. according to the described energy saving and environment friendly compound insulating material for building of claim 1, it is characterized in that making processes is:
Step 1: get material, each component is formed according to weight fraction:
Particle fineness is the flyash 2-5 of 300-600
Particle fineness is 3000-4000 purpose sericite in powder 1-4
Particle fineness 80-100 purpose wood fiber powder 0.5-2
Polypropylene fibre 5-8
Unslaked lime 10-15
Gelling material 60-80
Perlite 10-15
Whipping agent 2-5
Adjustable solidification agent 1-2
Water reducer 0.5-1
Suds-stabilizing agent 2-6
Exciting agent 1-4
Step 2: batch mixing, flyash in the step 1, sericite in powder, wood fiber powder adding polypropylene fibre, gelling material, whipping agent, unslaked lime are fully stirred, all kinds of powders are evenly distributed, form the powder compound and put into mixing machine, hang down and mix high mixing, treat that temperature reaches 145 degrees centigrade, oven dry moisture mixes, put into cold mixing, cold mixing to 30 degree, water reducer, suds-stabilizing agent, exciting agent is evenly soluble in water, form mixing liquid; The powder compound is fully mixed with mixing liquid;
Step 3: extrusion molding in step 2 gained batch mixing input forcing machine, is under the condition of 56A at 189 degrees centigrade, operating power 30KW, working current, is crushed to the section bar work in-process,
Step 4: typing, carry out deepfreeze in the water with 10 ℃ of step 3 gained section bar work in-process immersions, finish the typing of section bar, obtain section bar,
Step 5: the section bar that obtains is cut, carry out deep processing according to the length of customer need,
Step 6: dedusting, the first artificial dust of removing the section bar surface, use the further second removal dust of suction cleaner then after, pass through the twice electrostatic precipitation again,
Step 7: color matching, adopt the color matching of high-tech heat treating method,
Step 8: surface treatment, technology such as adopt attached, hard, light, face, draw carry out obtaining finished product after the multilayer ultraviolet light polymerization handles.
3. according to the described energy saving and environment friendly compound insulating material for building of claim 1, it is characterized in that: sample is put into the autoclave steam press maintenance, and pressure is 1.5-2.0Mpa, temperature is 150 ℃-250 ℃, constant temperature and pressure 8-12h, with the stove cooling, maintenance namely obtains by cutting, polishing.
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| CN201310156459.6A CN103253953B (en) | 2013-05-02 | 2013-05-02 | Energy-saving environment-friendly composite thermal insulation material for building |
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| CN201310156459.6A CN103253953B (en) | 2013-05-02 | 2013-05-02 | Energy-saving environment-friendly composite thermal insulation material for building |
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| CN103253953A true CN103253953A (en) | 2013-08-21 |
| CN103253953B CN103253953B (en) | 2015-06-03 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016653A (en) * | 2014-05-30 | 2014-09-03 | 中国矿业大学(北京) | A light fireproof thermal insulation material and a preparing method thereof |
| CN104016652A (en) * | 2014-05-30 | 2014-09-03 | 中国矿业大学(北京) | Autoclaved aerated concrete and preparation method thereof |
| CN104478358A (en) * | 2014-12-13 | 2015-04-01 | 广西科技大学 | Process for preparing composite foamed cement board |
| CN104761277A (en) * | 2015-03-19 | 2015-07-08 | 张芳 | Composite foaming cement board and preparation method thereof |
| CN104760133A (en) * | 2015-04-04 | 2015-07-08 | 朱国家 | Production device of building decoration part and preparation process of building decoration part |
| CN104788120A (en) * | 2015-03-19 | 2015-07-22 | 张芳 | Anti-freezing composite foamed cement board and preparation method thereof |
| CN107226660A (en) * | 2017-08-02 | 2017-10-03 | 合肥仙之峰农业科技有限公司 | A kind of toughening type light cellular partition board and preparation method thereof |
| CN109111169A (en) * | 2018-09-04 | 2019-01-01 | 徐州市华天塑业有限公司 | A kind of green building thermal insulation material |
| CN110372277A (en) * | 2019-08-02 | 2019-10-25 | 乔刚 | A kind of light body environment-friendly insulating building panel and preparation method thereof |
| CN111675526A (en) * | 2020-05-15 | 2020-09-18 | 咸宁职业技术学院 | Building environment-friendly heat-insulating material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101966A (en) * | 1986-03-14 | 1987-09-23 | 雷德科公司 | Light heat-insulating plate and manufacturing method thereof |
| CN1129762A (en) * | 1994-10-06 | 1996-08-28 | 杨俊岭 | Heat and sound insulating construction mortar made from flyash and manufacture thereof |
| CN1426576A (en) * | 2001-08-24 | 2003-06-25 | 新光国际有限公司 | Sound absorptive material |
-
2013
- 2013-05-02 CN CN201310156459.6A patent/CN103253953B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101966A (en) * | 1986-03-14 | 1987-09-23 | 雷德科公司 | Light heat-insulating plate and manufacturing method thereof |
| CN1129762A (en) * | 1994-10-06 | 1996-08-28 | 杨俊岭 | Heat and sound insulating construction mortar made from flyash and manufacture thereof |
| CN1426576A (en) * | 2001-08-24 | 2003-06-25 | 新光国际有限公司 | Sound absorptive material |
Non-Patent Citations (2)
| Title |
|---|
| 刘力辉 等: "水泥激发剂应用常见技术问题探讨", 《辽宁建材》 * |
| 轻工业部第一轻工业局: "《日用陶瓷工业手册》", 31 December 1984, 轻工业出版社 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016653A (en) * | 2014-05-30 | 2014-09-03 | 中国矿业大学(北京) | A light fireproof thermal insulation material and a preparing method thereof |
| CN104016652A (en) * | 2014-05-30 | 2014-09-03 | 中国矿业大学(北京) | Autoclaved aerated concrete and preparation method thereof |
| CN104478358A (en) * | 2014-12-13 | 2015-04-01 | 广西科技大学 | Process for preparing composite foamed cement board |
| CN104761277A (en) * | 2015-03-19 | 2015-07-08 | 张芳 | Composite foaming cement board and preparation method thereof |
| CN104788120A (en) * | 2015-03-19 | 2015-07-22 | 张芳 | Anti-freezing composite foamed cement board and preparation method thereof |
| CN104760133A (en) * | 2015-04-04 | 2015-07-08 | 朱国家 | Production device of building decoration part and preparation process of building decoration part |
| CN107226660A (en) * | 2017-08-02 | 2017-10-03 | 合肥仙之峰农业科技有限公司 | A kind of toughening type light cellular partition board and preparation method thereof |
| CN109111169A (en) * | 2018-09-04 | 2019-01-01 | 徐州市华天塑业有限公司 | A kind of green building thermal insulation material |
| CN110372277A (en) * | 2019-08-02 | 2019-10-25 | 乔刚 | A kind of light body environment-friendly insulating building panel and preparation method thereof |
| CN111675526A (en) * | 2020-05-15 | 2020-09-18 | 咸宁职业技术学院 | Building environment-friendly heat-insulating material |
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| CN103253953B (en) | 2015-06-03 |
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