CN104844142A - Novel expanded perlite heat insulation board and preparation method thereof - Google Patents
Novel expanded perlite heat insulation board and preparation method thereof Download PDFInfo
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- CN104844142A CN104844142A CN201510198543.3A CN201510198543A CN104844142A CN 104844142 A CN104844142 A CN 104844142A CN 201510198543 A CN201510198543 A CN 201510198543A CN 104844142 A CN104844142 A CN 104844142A
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Abstract
The invention relates to a novel expanded perlite heat insulation board and a preparation method thereof. The heat insulation board is mainly prepared from the following raw materials by weight: 25-35 parts of expanded perlite, 40-45 parts of water glass, 15-20 parts of a natural mineral additive, and 10-15 parts of distilled water. By employing grain size distribution, pressing molding, sintering, later stage waterproof treatment and other processes, the expanded perlite heat insulation board with good heat insulation performance, excellent mechanical properties, high fireproof grade, high water resistance and high durability can be obtained, and can meet the use demands of building exterior wall heat insulation systems.
Description
Technical field
The present invention relates to architecture exterior wall insulating materials technical field, particularly, the present invention relates to a kind of expansible pearlite heat-insulation plate and preparation method thereof.
Background technology
China's building energy consumption accounts for 1/3 of whole society's total energy consumption, and in building energy consumption, heating and refrigeration account for the overwhelming majority, and this mainly causes because the interchange of exterior wall heat is excessive.Now main terms of settlement is the outer side mounting thermal insulation system of exterior wall, wherein mainly includes machine and inorganic heat insulation material.
At present, China's building exterior wall heat preserving system is mainly organic insulation material, comprises urethane foam, polystyrene foamed plastics etc.Organic insulation material heat-insulating property is superior, but fire line is poor, causes fire to take place frequently.Therefore current inorganic heat insulation material is study hotspot.Pearlstone inside has polynuclear plane, and has the characteristics such as density is little, thermal conductivity is little, high temperature resistant, is thus widely used in external-wall heat-insulation material.Expanded perlite thermal-nsulation plate many employings maintaining process is in the market made, and ubiquity thermal conductivity is compared with high, the defect such as ultimate compression strength is little, water-intake rate is large, poor durability, and these problems are all urgently to be resolved hurrily.
Summary of the invention
Order of the present invention is to provide a kind of good heat insulating, excellent in mechanical performance, high waterproof, durable expanded perlite thermal-nsulation plate and preparation method thereof.
Object of the present invention reaches in the following manner:
A kind of expansible pearlite heat-insulation plate, is made up of the raw material of following weight proportion: pearlstone 25 ~ 35 parts, water glass 40 ~ 45 parts, USING NATURAL MINERAL ADDITIVE 15 ~ 20 parts, distilled water 10 ~ 15 parts.
Described pearlstone unit weight is 60 ~ 80kg/m3, thermal conductivity≤0.05 (w/mk), is divided into four kinds of grades: non-classification, < 0.5mm, 0.5 ~ 1.25mm, 1.25mm ~ 2.5mm.
Described modulus of water glass is 1.2, Baume concentration 35.2 ° of B é.
Described USING NATURAL MINERAL ADDITIVE is zeolite, tuff, diatomaceous mixture, and its proportioning is 30 ~ 40 parts, zeolite, tuff 30 ~ 40 parts, 25 ~ 35 parts, diatomite.
Comprise the following steps:
1) by 15 ~ 20 parts of USING NATURAL MINERAL ADDITIVE, 40 ~ 45 parts of water glass, 10 ~ 15 parts of distilled water mixing and stirring;
2) to step 1) add the pearlstone that 25 ~ 35 parts have certain grain grade proportion in gained mixture, and mixing and stirring;
3) by step 2) gained compound injects mould patting, with press compacting, compression ratio=1.8 ~ 2.2, and pressurize 30s, obtained sheet material;
4) pressed sheet is placed in dry 12 hours of the constant temperature oven of 60 ~ 80 DEG C;
5) dried sheet material is placed in retort furnace, at 600 DEG C, sinters 0 ~ 4 hour;
6) sheet material that sinters to be immersed in water-resisting agent 5 ~ 15 minutes, the constant temperature oven that the sheet material after soaking is placed in 60 DEG C is dried, after cooling, packs warehouse-in.
The grain grade proportion of described pearlstone is following three kinds of modes: non-grating; Twin-stage is joined, 0.5 ~ 1.25mm pearlstone: 1.25mm ~ 2.5mm pearlstone=25: 75 ~ 40: 60; Graduation three, < 0.5mm pearlstone: 0.5 ~ 1.25mm pearlstone: 1.25mm ~ 2.5mm pearlstone=0: 25: 75 ~ 20: 20: 60.
Described water-resisting agent is the organosilicon aqueous solution, and its concentration is organosilicon/water=1/70 ~ 1/30.
The present invention is mainly through compression ratio control panel density; Sheet material thermal conductivity and ultimate compression strength is regulated by pearlstone grain grade proportion; Cohesive strength is provided by alkali-activated carbonatite USING NATURAL MINERAL ADDITIVE; Ultimate compression strength and the weather resistance of sheet material is improved by high temperature sintering; The water-intake rate of sheet material is reduced by waterproofing agent of organosilicon process.
Present invention optimizes the techniques such as the formula of expanded perlite thermal-nsulation plate and compacting, drying, sintering, obtained expanded perlite thermal-nsulation plate has the following advantages: good heat insulating, mechanical property are good, fire-protection rating is high, high waterproof, high durable.The user demand of building exterior wall heat preserving system can be met.
Embodiment
With reference to following specific embodiment, the present invention is described in further detail, but protection scope of the present invention is not limited to following specific embodiment.
Embodiment 1:
5.8 parts of tuffs, 5.8 parts of zeolites, 4.7 parts of diatomite, 42.5 parts of water glass, 15 parts of water are mixed, then add 26.2 parts of unassorted pearlstones and stir, load compression moulding in mould, compression ratio is 2, pressurize 30s.By the sheet material after shaping in the thermostatic drying chamber of 60 DEG C dry 12 hours, then dried sheet material is placed in retort furnace, at 600 DEG C, sinters 0.5 hour.Then the sheet material that sinters to be immersed in the organic silicon solution of organosilicon/water=1,/60 10 minutes, finally the sheet material after leaching is dried in the thermostatic drying chamber of 60 DEG C.
The property indices of this sample is as follows: density=249kg/m
3, ultimate compression strength=0.46MPa, thermal conductivity=0.079W/ (m DEG C), volume water absorption rate=4.96%, does not fire.
Embodiment 2:
5.8 parts of tuffs, 5.8 parts of zeolites, 4.7 parts of diatomite, 42.5 parts of water glass, 15 parts of water are mixed, then adding 26.2 parts of grain grade proportions is 0.5 ~ 1.25mm pearlstone: 1.25mm ~ 2.5mm pearlstone=25: the pearlstone of 75 stirs, load compression moulding in mould, compression ratio is 2, pressurize 30s.By the sheet material after shaping in the thermostatic drying chamber of 60 DEG C dry 12 hours, then dried sheet material is placed in retort furnace, at 600 DEG C, sinters 0.5 hour.Then the sheet material that sinters to be immersed in the organic silicon solution of organosilicon/water=1,/60 10 minutes, finally the sheet material after leaching is being dried in the thermostatic drying chamber of 60 DEG C.
The property indices of this sample is as follows: density=236kg/m
3, ultimate compression strength=0.61MPa, thermal conductivity=0.068W/ (m DEG C), volume water absorption rate=4.28%, does not fire.
Embodiment 3:
5.8 parts of tuffs, 5.8 parts of zeolites, 4.7 parts of diatomite, 42.5 parts of water glass, 15 parts of water are mixed, then adding 26.2 parts of grain grade proportions is < 0.5mm pearlstone: 0.5 ~ 1.25mm pearlstone: 1.25mm ~ 2.5mm pearlstone=10: the pearlstone of 22.5: 67.5 stirs, load compression moulding in mould, compression ratio is 2, pressurize 30s.By the sheet material after shaping in the thermostatic drying chamber of 60 DEG C dry 12 hours, then dried sheet material is placed in retort furnace, at 600 DEG C, sinters 0.5 hour.Then the sheet material that sinters to be immersed in the organic silicon solution of organosilicon/water=1,/60 10 minutes, finally the sheet material after leaching is being dried in the thermostatic drying chamber of 60 DEG C.
The property indices of this sample is as follows: density=256kg/m
3, ultimate compression strength=0.66MPa, thermal conductivity=0.079W/ (m DEG C), volume water absorption rate=4.66%, does not fire.
Claims (7)
1. an expansible pearlite heat-insulation plate, is characterized in that, is made up of the raw material of following weight proportion: pearlstone 25 ~ 35 parts, water glass 40 ~ 45 parts, USING NATURAL MINERAL ADDITIVE 15 ~ 20 parts, distilled water 10 ~ 15 parts.
2. expansible pearlite heat-insulation plate according to claim 1, is characterized in that, described pearlstone unit weight is 60 ~ 80kg/m
3, thermal conductivity≤0.05 (w/mk), is divided into four kinds of grades: non-classification, < 0.5mm, 0.5 ~ 1.25mm, 1.25mm ~ 2.5mm.
3. expansible pearlite heat-insulation plate according to claim 1, is characterized in that, described modulus of water glass is 1.2, Baume concentration 35.2 ° of B é.
4. expansible pearlite heat-insulation plate according to claim 1, is characterized in that, described USING NATURAL MINERAL ADDITIVE is zeolite, tuff, diatomaceous mixture, and its proportioning is 30 ~ 40 parts, zeolite, tuff 30 ~ 40 parts, 25 ~ 35 parts, diatomite.
5. the preparation method of expansible pearlite heat-insulation plate according to claim 1, comprises the following steps:
1) by 15 ~ 20 parts of USING NATURAL MINERAL ADDITIVE, 40 ~ 45 parts of water glass, 10 ~ 15 parts of distilled water mixing and stirring;
2) to step 1) add the pearlstone that 25 ~ 35 parts have certain grain grade proportion in gained mixture, and mixing and stirring;
3) by step 2) gained compound injects mould patting, with press compacting, compression ratio=1.8 ~ 2.2, and pressurize 30s, obtained sheet material;
4) pressed sheet is placed in dry 12 hours of the constant temperature oven of 60 ~ 80 DEG C;
5) dried sheet material is placed in retort furnace, at 600 DEG C, sinters 0 ~ 4 hour;
6) sheet material that sinters to be immersed in water-resisting agent 5 ~ 15 minutes, the constant temperature oven that the sheet material after soaking is placed in 60 DEG C is dried, after cooling, packs warehouse-in.
6. method according to claim 5, is characterized in that, the grain grade proportion of described pearlstone is following three kinds of modes: non-grating; Twin-stage is joined, 0.5 ~ 1.25mm pearlstone: 1.25mm ~ 2.5mm pearlstone=25: 75 ~ 40: 60; Graduation three, < 0.5mm pearlstone: 0.5 ~ 1.25mm pearlstone: 1.25mm ~ 2.5mm pearlstone=0: 25: 75 ~ 20: 20: 60.
7. method according to claim 5, is characterized in that, described water-resisting agent is the organosilyl aqueous solution, and its concentration is organosilicon/water=1/70 ~ 1/30.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892546A (en) * | 2017-12-11 | 2018-04-10 | 李珠 | Sintering grow pearlite heat-insulation plate and preparation method thereof |
| CN108585924A (en) * | 2018-05-15 | 2018-09-28 | 中国地质大学（北京） | A kind of heat insulating inorganic plate and preparation method thereof prepared by crushed crude pearlite foaming at normal temp |
| CN108640644A (en) * | 2018-06-11 | 2018-10-12 | 咸阳陶瓷研究设计院有限公司 | A kind of preparation process of built-in steel wire thermal insulation board |
| CN111960795A (en) * | 2019-05-20 | 2020-11-20 | 中国地质大学（北京） | Inorganic foaming cementing material composition and application thereof in preparation of porous heat-insulating material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100452A (en) * | 1987-01-21 | 1987-10-21 | 浙江省丽水地区科学技术开发中心 | Manufacturing process of light construction material of fine grain expanded pearlite |
| WO2004099344A1 (en) * | 2003-05-08 | 2004-11-18 | Itn Nanovation Gmbh | Fire-resistant composition |
| US20050066859A1 (en) * | 2003-09-29 | 2005-03-31 | Jun-Han Choi | Incombustible composition, incombustible construction product using incombustible composition, and method of producing incombustible construction product |
| CN102791651A (en) * | 2010-04-26 | 2012-11-21 | 建筑研究和技术有限公司 | Alkali-activated aluminosilicate binder containing glass beads |
-
2015
- 2015-04-24 CN CN201510198543.3A patent/CN104844142B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100452A (en) * | 1987-01-21 | 1987-10-21 | 浙江省丽水地区科学技术开发中心 | Manufacturing process of light construction material of fine grain expanded pearlite |
| WO2004099344A1 (en) * | 2003-05-08 | 2004-11-18 | Itn Nanovation Gmbh | Fire-resistant composition |
| US20050066859A1 (en) * | 2003-09-29 | 2005-03-31 | Jun-Han Choi | Incombustible composition, incombustible construction product using incombustible composition, and method of producing incombustible construction product |
| CN102791651A (en) * | 2010-04-26 | 2012-11-21 | 建筑研究和技术有限公司 | Alkali-activated aluminosilicate binder containing glass beads |
Non-Patent Citations (1)
| Title |
|---|
| 沈春林: "《防水材料产品手册》", 31 March 2007 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892546A (en) * | 2017-12-11 | 2018-04-10 | 李珠 | Sintering grow pearlite heat-insulation plate and preparation method thereof |
| CN108585924A (en) * | 2018-05-15 | 2018-09-28 | 中国地质大学（北京） | A kind of heat insulating inorganic plate and preparation method thereof prepared by crushed crude pearlite foaming at normal temp |
| CN108640644A (en) * | 2018-06-11 | 2018-10-12 | 咸阳陶瓷研究设计院有限公司 | A kind of preparation process of built-in steel wire thermal insulation board |
| CN108640644B (en) * | 2018-06-11 | 2021-03-23 | 咸阳陶瓷研究设计院有限公司 | Preparation process of heat insulation board with built-in steel wire mesh |
| CN111960795A (en) * | 2019-05-20 | 2020-11-20 | 中国地质大学（北京） | Inorganic foaming cementing material composition and application thereof in preparation of porous heat-insulating material |
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| CN104844142B (en) | 2017-11-10 |
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