CN103205197A - Organosilicon water-proofing agent for perlite insulation board - Google Patents
Organosilicon water-proofing agent for perlite insulation board Download PDFInfo
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- CN103205197A CN103205197A CN2013101276508A CN201310127650A CN103205197A CN 103205197 A CN103205197 A CN 103205197A CN 2013101276508 A CN2013101276508 A CN 2013101276508A CN 201310127650 A CN201310127650 A CN 201310127650A CN 103205197 A CN103205197 A CN 103205197A
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- organosilicon
- water
- waterproofing agent
- insulation plate
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Abstract
The invention relates to an organosilicon water-proofing agent and a method for improving the waterproofness of a perlite insulation board through adopting the organosilicon water-proofing agent. The method comprises steps of: adopting a sodium alkylsilanol organosilicon water-proofing agent to treat the perlite insulation board, and forming a layer of hydrophobic polysiloxane film on the surface of the perlite insulation board. The modified perlite insulation board obtained by applying the technological method has low water absorptivity and maintains the good insulation performance.
Description
Technical field
The present invention relates to a kind of waterproofing agent of organosilicon, and a kind of method that adopts waterproofing agent of organosilicon to improve the pearlite heat-insulation plate water-repellancy.
Background technology
External Walls Heating Insulation comes from Europe, and its application at building field has greatly reduced building energy consumption, and China is populous nation, and building energy conservation is particularly important.Present China construction unit area energy consumption is 3～5 times of the close developed country of weather, and the External Walls Heating Insulation of China and building energy conservation level are far below developed country, so External Walls Heating Insulation still is an important problem of Building Trade in China in this century.In recent years, along with deepening continuously of China's External Walls Heating Insulation and building energy conservation work, develop a series of building thermal insulation material, comprised materials such as rock cotton board, glass wool, foamed glass, foam cement, organic composite material and perlite.Still there is great potential safety hazard in organic composite material because thermal conductivity is little, light weight once once received an acclaim.
Pearlstone is one of building heat preserving material at present commonly used, it have light weight, inexpensive, thermal conductivity is little, sound absorption, characteristics such as nonflammable, nontoxic.The throughput of China's pearlite heat-insulation plate reaches 1,000 ten thousand m at present
2/ year.But because pearlstone is the silicates with vesicular structure, its water-intake rate is up to 300%.It is big that the thermal conductivity of the pearlite heat-insulation plate after the suction becomes, the heat-insulating property variation.In order to address this problem, numerous producers add hydrophober with the water-intake rate of control warming plate in the process of making the expanded perlite thermal-nsulation plate; There are some researchists that pearlstone is carried out modification simultaneously; comprise surperficial vitreous, the closed pore processing that organism coats and inorganics coats; all make the water-intake rate of warming plate reduce; but improved the thermal conductivity of warming plate to a certain extent, and in use there is potential safety hazard in the pearlite heat-insulation plate that organism coats.This patent aims to provide a kind of for the method that improves the pearlite heat-insulation plate water-repellancy.
Summary of the invention
The object of the present invention is to provide a kind of waterproofing agent of organosilicon, and use it for and improve the pearlite heat-insulation plate water-repellancy, it is characterized in that self-control waterproofing agent of organosilicon and water are diluted by a certain percentage, be sprayed at the expanded perlite thermal-nsulation plate surface with vesicular structure, namely form one deck waterproof membrane on the warming plate surface after the drying;
Described pearlite heat-insulation plate aggregate is the pearlstone of opening;
Described waterproofing agent of organosilicon is alkylsilanol sodium class water-soluble organic silicon water-resisting agent, and its molecular structural formula is as follows:
The A structure:
The B structure:
R wherein
1Be hydrophobic groups such as methyl, ethyl, trifluoromethyl or trifluoroethyl;
R wherein
2Be hydrophobic groups such as methyl, ethyl, trifluoromethyl or trifluoroethyl;
Described waterproofing agent of organosilicon composition has diversity, is the A structurally waterproof agent described in the claim 3 or the mixing waterproofing agent of organosilicon of A structure and B structure;
The content of B structurally waterproof agent is less than 50% in the described mixing waterproofing agent of organosilicon;
The mass ratio of described waterproofing agent of organosilicon and water is 1: 5-1: 10;
Described alkylsilanol sodium class waterproofing agent of organosilicon (CO in the water and air under mild acid conditions
2) polymerization and generate polysiloxane film;
Described drying temperature is room temperature.
The present invention has the expanded perlite thermal-nsulation plate surface spraying self-control alkylsilanol sodium class water-resisting agent of vesicular structure, and alkylsilanol sodium is the (CO in the water and air under mild acid conditions
2) polymerization and generate polysiloxane film, thermal conductivity remains unchanged substantially, the water absorbing properties of expanded perlite thermal-nsulation plate descends significantly, prevent that effectively warming plate from increasing because of the thermal conductivity that suction causes, thereby make pearlite heat-insulation plate keep heat-insulating property preferably, and this processing method simple possible.
Embodiment
Specifying and related embodiment of the present invention with examples of implementation below, only is the limited example that embodiment of the present invention are described, does not limit the scope of the invention.Four corner of the present invention is embodied in every claim of front.
Embodiment 1
Trifluoromethyl sodium silanolate and water are added blended under agitation in the agitator by 1: 5 (mass ratio), be sprayed at the pearlite heat-insulation plate surface then, drying at room temperature.Water-intake rate and the thermal conductivity of the modification pearlite heat-insulation plate that makes are listed in the table 1.
Embodiment 2
Ethyl sodium silanolate and water are added blended under agitation in the agitator by 1: 7 (mass ratio), be sprayed at the pearlite heat-insulation plate surface then, drying at room temperature.Water-intake rate and the thermal conductivity of the modification pearlite heat-insulation plate that makes are listed in the table 1.
Embodiment 3
Ethyl sodium silanolate, ethyl-methyl sodium silanolate and water are added blended under agitation in the agitator by 0.8: 0.2: 7 (mass ratio), be sprayed at the pearlite heat-insulation plate surface then, drying at room temperature.Water-intake rate and the thermal conductivity of the modification pearlite heat-insulation plate that makes are listed in the table 1.
The performance perameter of table 1 modification pearlite heat-insulation plate
Claims (8)
1. a waterproofing agent of organosilicon and a kind of method that adopts waterproofing agent of organosilicon to improve the pearlite heat-insulation plate water-repellancy, it is characterized in that waterproofing agent of organosilicon is mixed by a certain percentage with water, be sprayed at the pearlite heat-insulation plate surface, namely form waterproof membrane on the warming plate surface after the drying.
2. a kind of method that adopts waterproofing agent of organosilicon to improve the pearlite heat-insulation plate water-repellancy according to claim 1 is characterized in that described pearlite heat-insulation plate aggregate is the pearlstone of opening.
3. a kind of method that adopts waterproofing agent of organosilicon to improve the pearlite heat-insulation plate water-repellancy according to claim 1 is characterized in that described waterproofing agent of organosilicon is alkylsilanol sodium class water-soluble organic silicon water-resisting agent, and its molecular structural formula is as follows:
The A structure:
The B structure:
R wherein
1Be hydrophobic groups such as methyl, ethyl, trifluoromethyl or trifluoroethyl;
R wherein
2Be hydrophobic groups such as methyl, ethyl, trifluoromethyl or trifluoroethyl.
4. a kind of method that improves the pearlite heat-insulation plate water-repellancy according to claim 1, it is characterized in that described waterproofing agent of organosilicon composition has diversity, is the A structurally waterproof agent described in the claim 3 or the mixing waterproofing agent of organosilicon of A structure and B structure.
5. the mixing waterproofing agent of organosilicon of A structure according to claim 4 and B structure is characterized in that, mixes the content of B structurally waterproof agent in the water-resisting agent less than 50%.
6. a kind of method that adopts waterproofing agent of organosilicon to improve the pearlite heat-insulation plate water-repellancy according to claim 1, the mass ratio that it is characterized in that described waterproofing agent of organosilicon and water is 1: 5-1: 10.
7. alkylsilanol sodium class waterproofing agent of organosilicon according to claim 3 is characterized in that alkylsilanol sodium (CO in the water and air under mild acid conditions
2) polymerization and generate polysiloxane film.
8. a kind of method that adopts waterproofing agent of organosilicon to improve the pearlite heat-insulation plate water-repellancy according to claim 1 is characterized in that described drying temperature is room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101276508A CN103205197A (en) | 2013-04-15 | 2013-04-15 | Organosilicon water-proofing agent for perlite insulation board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101276508A CN103205197A (en) | 2013-04-15 | 2013-04-15 | Organosilicon water-proofing agent for perlite insulation board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103205197A true CN103205197A (en) | 2013-07-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101276508A Pending CN103205197A (en) | 2013-04-15 | 2013-04-15 | Organosilicon water-proofing agent for perlite insulation board |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692735A (en) * | 2013-12-06 | 2015-06-10 | 金海龙 | Fireproof A1 level inorganic interior and exterior wall heat insulation board and production method thereof |
| CN111534158A (en) * | 2020-05-29 | 2020-08-14 | 武汉理工大学 | Polystyrene/polysiloxane super-hydrophobic composite film and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267646A (en) * | 1999-12-23 | 2000-09-27 | 崔申 | Multifunctional sound-absorbing expanded perlite board and its production process |
| CN101781098A (en) * | 2010-01-27 | 2010-07-21 | 韩志同 | Waterproof closed-cell expanded perlite |
| WO2011087829A1 (en) * | 2009-12-22 | 2011-07-21 | Dow Corning Corporation | Aqueous emulsions of alkylalkoxysilanes |
-
2013
- 2013-04-15 CN CN2013101276508A patent/CN103205197A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267646A (en) * | 1999-12-23 | 2000-09-27 | 崔申 | Multifunctional sound-absorbing expanded perlite board and its production process |
| WO2011087829A1 (en) * | 2009-12-22 | 2011-07-21 | Dow Corning Corporation | Aqueous emulsions of alkylalkoxysilanes |
| CN101781098A (en) * | 2010-01-27 | 2010-07-21 | 韩志同 | Waterproof closed-cell expanded perlite |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692735A (en) * | 2013-12-06 | 2015-06-10 | 金海龙 | Fireproof A1 level inorganic interior and exterior wall heat insulation board and production method thereof |
| CN111534158A (en) * | 2020-05-29 | 2020-08-14 | 武汉理工大学 | Polystyrene/polysiloxane super-hydrophobic composite film and preparation method thereof |
| CN111534158B (en) * | 2020-05-29 | 2021-09-07 | 武汉理工大学 | Polystyrene/polysiloxane super-hydrophobic composite film and preparation method thereof |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20160601 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |