CN1093518C - Integrally hydrophobic insulating porous product of calcium silicate and its preparing process - Google Patents
Integrally hydrophobic insulating porous product of calcium silicate and its preparing process Download PDFInfo
- Publication number
- CN1093518C CN1093518C CN98125476A CN98125476A CN1093518C CN 1093518 C CN1093518 C CN 1093518C CN 98125476 A CN98125476 A CN 98125476A CN 98125476 A CN98125476 A CN 98125476A CN 1093518 C CN1093518 C CN 1093518C
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- CN
- China
- Prior art keywords
- water
- calcium silicate
- heat
- products
- lime
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Insulation (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a heat and cold insulation engineering material for underground pipe networks and a process formula thereof, particularly to an integral hydrophobic micropore calcium silicate adiabatic product. The process of the present invention comprises the following steps of proportionally mixing and evenly stirring diatomite, lime, reinforced fibers, silicon oil emulsion, water, etc., treating the mixtures in a press molding mode by gel under certain temperature and pressure, and evaporating and drying semi-finished products to become finished products, and the products have the advantages of light bulk weight, high strength, good heat-insulating property, no combustion, water resistance, good humidity resistance, etc. Especially, the products can integrally resist water, the water absorption is smaller than 2%, which is much better than that of other heat-insulating materials, and the products are widely applied to roof walls, and are especially suitable for basements, heat supply tubes buried underground, heat and cold insulation projects, etc.
Description
The present invention relates to integral hydrophobic insulating porous product of calcium silicate and technical recipe thereof, be particularly useful for the technical recipe of the thermal insulation material of engineering such as underground pipe network insulation cold insulation.
At present, the common drawback of domestic common insulating porous product of calcium silicate, its water-intake rate very easily makes moist up to 90%, and easy aquation can not be used under wet environment; Only there is water-repellent layer in the hydrophobic insulating porous product of calcium silicate that also has at product surface＜1mm, can not long use under the environment of humidity.
There is shortcoming at above-mentioned insulating porous product of calcium silicate, the purpose of this invention is to provide a kind of insulating porous product of calcium silicate energy integral hydrophobic, be difficult for absorbing moisture content, not firing, not only can be used for partition wall and make body of wall and use, but also can be in the manufacture method of the hydrophobic insulating porous product of calcium silicate of engineerings such as underground pipe network insulation, cold insulation under wet environment use.
Technical scheme of the present invention: utilize the diatomite of local affluent resources, lime to be main raw material, mix materials such as fortifying fibre, silicone oil emulsion, water and form.The proportioning of its various raw materials by weight is diatomite 4-10%; Lime 2-8%; Fortifying fibre 0.1-0.5%; Silicone oil emulsion (concentration is 30%) 1-7%; Water 80-90%.The best of integral hydrophobic insulating porous product of calcium silicate is filled a prescription by weight percentage and is: diatomite 7%; Lime is 5%; Fortifying fibre 0.3%; Silicone oil emulsion 3.7%; Water 84%.
Manufacturing technology steps of the present invention:
(1) with diatomite, lime, fortifying fibre, silicone oil emulsion, water precentagewise example weighing → (two) mix stirrings → (three) gel reaction → (four) compression moulding → (five) pressure still steam-cured → (six) drying room oven dry → (seven) finished product packing.
Fig. 1 is an integral hydrophobic insulating porous product of calcium silicate processing step schema of the present invention.
Below in conjunction with Fig. 1 the invention implementation process is described further:
The first step: claim diatomite 7% at first by weight percentage; Lime 5%; Fortifying fibre 0.3%; Silicone oil emulsion (30% concentration) 3.7%; Water 84%.
Second step: various starting material mixing and stirring;
The 3rd step:, carry out gel reaction 95 ℃～100 ℃ of temperature of reaction;
The 4th step: through goods mould compression moulding (pressure 7～10MPa);
The 5th step: work in-process are pressed the steam-cured (pressure 0.7～0.8MPa) of still;
The 6th step: enter the drying room temperature and be controlled at 70 ℃～150 ℃, 50～70 hours time;
The 7th step: finished product packing
The advantage and the effect of the manufacture method of integral hydrophobic insulating porous product of calcium silicate of the present invention are as follows:
Integral hydrophobic insulating porous product of calcium silicate of the present invention is a kind of novel adiabatic novel material, is specially adapted to underground pipe network insulation, cold insulation engineering.Have the intensity height, heat-insulating property is good, unit weight is light, nontoxic, not mould, do not fire, anti-water, moistureproof advantage such as good, particularly can integral hydrophobic, water-intake rate＜2%, be that other lagging materials are incomparable, be widely used in the roof body of wall, be particularly useful for vault, buried heating tube and insulation, cold insulation engineering, its main performance index is led over domestic like product advanced level.Its leading indicator: density≤220kg/m
3Thermal conductivity≤0.06w/m.k; Ultimate compression strength 〉=0.60MPa; Folding strength 〉=0.35MPa; Water ratio≤5%; Linear shrinkage ratio≤2.0%; Integral hydrophobic rate 〉=98%.
Claims (2)
1, a kind of manufacture method of integral hydrophobic insulating porous product of calcium silicate, its feature comprise the steps: (1) weighing of filling a prescription by weight percentage: diatomite 4-10%; Lime 2-8%; Fortifying fibre 0.1-0.5%; Silicone oil emulsion (concentration is 30%) 1-7%; Water 80-90%; (2) with the direct mixing and stirring of the various raw materials of diatomite, lime, silicone oil emulsion, fortifying fibre, water of above-mentioned weighing; (3) under 95-100 ℃ of temperature, carry out gel reaction; (4) at 7-10MPa through mould compression moulding; (5) still is steam-cured through pressing again, oven dry forms.
2, the optimised process prescription by the manufacture method of the insulating product of the described integral hydrophobic microporous calcium silicate of claim 1 is: diatomite 7%; Lime 5%; Fortifying fibre 0.3%; Silicone oil emulsion (concentration is 30%) 3.7%; Water 84%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98125476A CN1093518C (en) | 1998-12-10 | 1998-12-10 | Integrally hydrophobic insulating porous product of calcium silicate and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98125476A CN1093518C (en) | 1998-12-10 | 1998-12-10 | Integrally hydrophobic insulating porous product of calcium silicate and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263867A CN1263867A (en) | 2000-08-23 |
| CN1093518C true CN1093518C (en) | 2002-10-30 |
Family
ID=5229189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98125476A Expired - Fee Related CN1093518C (en) | 1998-12-10 | 1998-12-10 | Integrally hydrophobic insulating porous product of calcium silicate and its preparing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1093518C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4860005B1 (en) * | 2010-12-22 | 2012-01-25 | ニチアス株式会社 | Insulating material and manufacturing method thereof |
| CN103172333A (en) * | 2011-12-22 | 2013-06-26 | 浙江阿斯克新型保温材料有限公司 | Technology method for preparing ultra-light torbay mullite calcium silicate heat preservation material |
| CN104045090B (en) * | 2014-06-05 | 2019-01-11 | 嵊州市求是节能材料有限公司 | Ultralight high temperature calcium silicate insulating product production technology |
| CN107337420B (en) * | 2017-07-24 | 2020-07-24 | 浙江阿斯克建材科技股份有限公司 | Integral hydrophobic heat-insulating spray paint of calcium silicate and its preparing process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067423A (en) * | 1991-06-05 | 1992-12-30 | 清华大学 | The manufacture method of hydrophobic microporous calcium silicate products |
-
1998
- 1998-12-10 CN CN98125476A patent/CN1093518C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067423A (en) * | 1991-06-05 | 1992-12-30 | 清华大学 | The manufacture method of hydrophobic microporous calcium silicate products |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1263867A (en) | 2000-08-23 |
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| CF01 | Termination of patent right due to non-payment of annual fee |