CN104844142B - A kind of expanded perlite thermal-nsulation plate and preparation method thereof - Google Patents
A kind of expanded perlite thermal-nsulation plate and preparation method thereof Download PDFInfo
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- CN104844142B CN104844142B CN201510198543.3A CN201510198543A CN104844142B CN 104844142 B CN104844142 B CN 104844142B CN 201510198543 A CN201510198543 A CN 201510198543A CN 104844142 B CN104844142 B CN 104844142B
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Abstract
The present invention relates to a kind of expansible pearlite heat-insulation plate and preparation method thereof.It is mainly prepared from the following raw materials in parts by weight：25~35 parts of expanded perlite, 40~45 parts of waterglass, 15~20 parts of NATURAL MINERAL ADDITIVE, 10~15 parts of distilled water.Using the technique such as grain size distribution, compressing, sintering, later stage water-proofing treatment, it has been made that good heat insulating, mechanical property are good, fire-protection rating is high, high waterproof, high durable expanded perlite thermal-nsulation plate, has disclosure satisfy that the use demand of building exterior wall heat preserving system.
Description
Technical field
The present invention relates to architecture exterior wall insulating materials technical field, in particular it relates to a kind of expansible pearl
Rock warming plate and preparation method thereof.
Background technology
China's building energy consumption accounts for the 1/3 of whole society's total energy consumption, and heating and refrigeration account for the overwhelming majority in building energy consumption,
This mainly due to exterior wall body heat content exchange it is excessive caused by.Solution primarily now is the outer side mounting insulation of exterior wall
System, wherein mainly including machine and inorganic heat insulation material.
At present, building exterior wall heat preserving system in China's is mainly organic insulation material, including polyurethane foam plastics, polyphenyl second
Alkene foamed plastics etc..Organic insulation material heat-insulating property is superior, but fire line is poor, causes fire to take place frequently.Therefore it is current inorganic
Insulation material is study hotspot.There is alveolate texture inside expanded perlite, and with density is small, thermal conductivity factor is small, resistance to height
The characteristics such as temperature, thus it is widely used in external-wall heat-insulation material.Expanded perlite thermal-nsulation plate in the market is more using maintenance
Technique is made, and generally existing thermal conductivity factor is compared with the defects of high, compression strength is small, water absorption rate is big, poor durability, and these problems are all urgently
It is to be solved.
The content of the invention
Mesh 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.
The purpose of the present invention reaches in the following manner：
A kind of expansible pearlite heat-insulation plate, is prepared from the following raw materials in parts by weight：25~35 parts of expanded perlite,
40~45 parts of waterglass, 15~20 parts of NATURAL MINERAL ADDITIVE, 10~15 parts of distilled water.
Described expanded perlite unit weight is 60~80kg/m3, thermal conductivity factor≤0.05 (w/mk), is divided into four kinds of grains
Level：It is not classified, ＜ 0.5mm, 0.5~1.25mm, 1.25mm~2.5mm.
Described modulus of water glass is 1.2,35.2 ° of B é of Baume concentration.
Described NATURAL MINERAL ADDITIVE is zeolite, tufa stone, diatomaceous mixture, and its proportioning is zeolite 30~40
Part, 30~40 parts of tufa stone, 25~35 parts of diatomite.
Comprise the following steps：
1) 15~20 parts of NATURAL MINERAL ADDITIVEs, 40~45 parts of waterglass, 10~15 parts of distilled water are mixed evenly；
2) 25~35 parts are added into mixture obtained by step 1) has the expanded perlite of certain grain grade proportion, and mixes
Stir；
3) compound obtained by step 2) is injected in mould and patted, suppressed with press, compression ratio=1.8~2.2, and protect
30s is pressed, sheet material is made；
4) pressed sheet is placed in 60~80 DEG C of constant temperature oven and dried 12 hours；
5) dried sheet material is placed in Muffle furnace, sintered 0~4 hour at 600 DEG C；
6) sheet material sintered is immersed in waterproofing agent 5~15 minutes, the sheet material after immersion is placed in 60 DEG C of constant temperature and dried
Dried in case, packaging and storage after cooling.
The grain grade proportion of described expanded perlite is following three kinds of modes：Non- grading；Twin-stage is matched somebody with somebody, and 0.5~1.25mm is swollen
Swollen perlite: 1.25mm~2.5mm expanded perlite=25: 75~40: 60；Graduation three, ＜ 0.5mm expanded perlites: 0.5~
1.25mm expanded perlites: 1.25mm~2.5mm expanded perlite=0: 25: 75~20: 20: 60.
Described waterproofing agent is the organosilicon aqueous solution, and its concentration is organosilicon/water=1/70~1/30.
The present invention mainly passes through compression ratio control panel density；Led by expanded perlite grain grade proportion to adjust sheet material
Hot coefficient and compression strength；Adhesion strength is provided by alkali-activated carbonatite NATURAL MINERAL ADDITIVE；Plate is improved by high temperature sintering
The compression strength and durability of material；The water absorption rate of sheet material is reduced by waterproofing agent of organosilicon processing.
Present invention optimizes the technique such as the formula of expanded perlite thermal-nsulation plate and compacting, drying, sintering, obtained expansion is precious
Pearl rock warming plate has advantages below：Good heat insulating, mechanical property are good, fire-protection rating is high, high waterproof, high durable.It can expire
The use demand of sufficient building exterior wall heat preserving system.
Embodiment
The present invention is described in further detail with reference to specific examples below, but protection scope of the present invention be not limited to it is following
Specific embodiment.
Embodiment 1：
5.8 parts of tufa stones, 5.8 parts of zeolites, 4.7 parts of diatomite, 42.5 parts of waterglass, 15 parts of water are well mixed, then
Add 26.2 parts of unassorted expanded perlites to stir, be fitted into compressing in mould, compression ratio 2, pressurize
30s.Sheet material after shaping is dried 12 hours in 60 DEG C of thermostatic drying chamber, dried sheet material is then placed in Muffle furnace
In, sintered 0.5 hour at 600 DEG C.Then the sheet material sintered is immersed 10 in the organic silicon solution of organosilicon/water=1/60
Minute, finally the sheet material after leaching is dried in 60 DEG C of thermostatic drying chamber.
The property indices of the sample are as follows：Density=249kg/m3, compression strength=0.46MPa, thermal conductivity factor=
0.079W/ (m DEG C), volume water absorption rate=4.96% are non-ignitable.
Embodiment 2：
5.8 parts of tufa stones, 5.8 parts of zeolites, 4.7 parts of diatomite, 42.5 parts of waterglass, 15 parts of water are well mixed, then
Add 26.2 parts of grain grade proportions be 0.5~1.25mm expanded perlites: 1.25mm~2.5mm expanded perlite=25: 75 it is swollen
Swollen perlite stirs, and is fitted into compressing in mould, compression ratio 2, pressurize 30s.By the sheet material after shaping 60
DEG C thermostatic drying chamber in dry 12 hours, then dried sheet material is placed in Muffle furnace, sintered at 600 DEG C 0.5 small
When.Then the sheet material sintered is immersed in the organic silicon solution of organosilicon/water=1,/60 10 minutes, finally by the sheet material after leaching
Dried in 60 DEG C of thermostatic drying chamber.
The property indices of the sample are as follows：Density=236kg/m3, compression strength=0.61MPa, thermal conductivity factor=
0.068W/ (m DEG C), volume water absorption rate=4.28% are non-ignitable.
Embodiment 3：
5.8 parts of tufa stones, 5.8 parts of zeolites, 4.7 parts of diatomite, 42.5 parts of waterglass, 15 parts of water are well mixed, then
It is ＜ 0.5mm expanded perlites: 0.5~1.25mm expanded perlites to add 26.2 parts of grain grade proportions: 1.25mm~2.5mm expansions
Perlite=10: 22.5: 67.5 expanded perlite stirs, it is fitted into compressing in mould, compression ratio 2, protects
Press 30s.Sheet material after shaping is dried 12 hours in 60 DEG C of thermostatic drying chamber, dried sheet material is then placed in Muffle
In stove, sintered 0.5 hour at 600 DEG C.Then the sheet material sintered is immersed in the organic silicon solution of organosilicon/water=1/60
10 minutes, finally the sheet material after leaching is dried in 60 DEG C of thermostatic drying chamber.
The property indices of the sample are as follows：Density=256kg/m3, compression strength=0.66MPa, thermal conductivity factor=
0.079W/ (m DEG C), volume water absorption rate=4.66% are non-ignitable.
Claims (5)
1. a kind of expanded perlite thermal-nsulation plate, it is characterised in that be prepared from the following raw materials in parts by weight：Expanded perlite 25~
35 parts, 40~45 parts of waterglass, 15~20 parts of NATURAL MINERAL ADDITIVE, 10~15 parts of distilled water,
Described expanded perlite unit weight is 60~80kg/m3, thermal conductivity factor≤0.05 (W/mK),
Described modulus of water glass is 1.2,35.2 ° of B é of Baume concentration；
Described NATURAL MINERAL ADDITIVE is zeolite, tufa stone, diatomaceous mixture, and it matches as 30~40 parts of zeolite, coagulated
30~40 parts of limestone, 25~35 parts of diatomite；
The expanded perlite thermal-nsulation plate is prepared by the method comprised the following steps：
1) 15~20 parts of NATURAL MINERAL ADDITIVEs, 40~45 parts of waterglass, 10~15 parts of distilled water are mixed evenly；
2) 25~35 parts are added into mixture obtained by step 1) has the expanded perlite of certain grain grade proportion, and mixes
Uniformly；
3) compound obtained by step 2) is injected in mould and patted, suppressed with press, compression ratio=1.8~2.2, and pressurize
30s, sheet material is made；
4) pressed sheet is placed in 60~80 DEG C of constant temperature oven and dried 12 hours；
5) dried sheet material is placed in Muffle furnace, sintered 0~4 hour at 600 DEG C；
6) sheet material sintered is immersed in waterproofing agent 5~15 minutes, the sheet material after immersion be placed in 60 DEG C of constant temperature oven
Drying, packaging and storage after cooling.
2. expanded perlite thermal-nsulation plate according to claim 1, it is characterised in that described expanded perlite is divided into four kinds
Grade：It is not classified, ＜ 0.5mm, 0.5~1.25mm, 1.25mm~2.5mm.
3. the preparation method of expanded perlite thermal-nsulation plate according to claim 1 or 2, comprises the following steps：
1) 15~20 parts of NATURAL MINERAL ADDITIVEs, 40~45 parts of waterglass, 10~15 parts of distilled water are mixed evenly；
2) 25~35 parts are added into mixture obtained by step 1) has the expanded perlite of certain grain grade proportion, and mixes
Uniformly；
3) compound obtained by step 2) is injected in mould and patted, suppressed with press, compression ratio=1.8~2.2, and pressurize
30s, sheet material is made；
4) pressed sheet is placed in 60~80 DEG C of constant temperature oven and dried 12 hours；
5) dried sheet material is placed in Muffle furnace, sintered 0~4 hour at 600 DEG C；
6) sheet material sintered is immersed in waterproofing agent 5~15 minutes, the sheet material after immersion be placed in 60 DEG C of constant temperature oven
Drying, packaging and storage after cooling.
4. according to the method for claim 3, it is characterised in that the grain grade proportion of described expanded perlite is following three kinds
Mode：Non- grading；Twin-stage is matched somebody with somebody, 0.5~1.25mm expanded perlites: 1.25mm~2.5mm expanded perlite=25: 75~40:
60；Graduation three, ＜ 0.5mm expanded perlites: 0.5~1.25mm expanded perlites: 1.25mm~2.5mm expanded perlite=0:
25: 75~20: 20: 60.
5. according to the method for claim 3, it is characterised in that described waterproofing agent be organosilicon the aqueous solution, its concentration
For organosilicon/water=1/70~1/30.
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| CN201510198543.3A CN104844142B (en) | 2015-04-24 | 2015-04-24 | A kind of expanded perlite thermal-nsulation plate and preparation method thereof |
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| CN201510198543.3A CN104844142B (en) | 2015-04-24 | 2015-04-24 | A kind of expanded perlite thermal-nsulation plate and preparation method thereof |
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| CN107892546A (en) * | 2017-12-11 | 2018-04-10 | 李珠 | Sintering grow pearlite heat-insulation plate and preparation method thereof |
| CN108585924B (en) * | 2018-05-15 | 2021-08-17 | 中国地质大学（北京） | Novel inorganic insulation board prepared by normal-temperature foaming of perlite powder and preparation method thereof |
| 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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| 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 |
| DE10322363B4 (en) * | 2003-05-08 | 2007-05-24 | Itn Nanovation Ag | Fire protection composition |
| KR20050031196A (en) * | 2003-09-29 | 2005-04-06 | 최준한 | Incombustible composition, incombustible material for architecture using the same and preparing method thereof |
| WO2011134783A1 (en) * | 2010-04-26 | 2011-11-03 | Construction Research & Technology Gmbh | Alkali-activated aluminosilicate binder containing glass beads |
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