CN104177115B - A kind of method that solid phase Silica hydrogel prepares foamed material - Google Patents
A kind of method that solid phase Silica hydrogel prepares foamed material Download PDFInfo
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- CN104177115B CN104177115B CN201310200799.4A CN201310200799A CN104177115B CN 104177115 B CN104177115 B CN 104177115B CN 201310200799 A CN201310200799 A CN 201310200799A CN 104177115 B CN104177115 B CN 104177115B
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- solid phase
- silica hydrogel
- phase silica
- microwave
- foamed material
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Abstract
Solid phase Silica hydrogel has with the covert characteristic of temperature, the migration of solid phase, liquid phase, solid phase is produced at 108 degree Celsius to 190 degree Celsius, soften under the effect such as nucleator, foam stabilizer, surfactant, foaming agent through infrared radiation, microwave irradiation foams, then can obtain solid phase Silica hydrogel foamed material through high-temperature maturing.
Description
Technical field
The invention belongs to the design field of chemical process, specifically discloses a kind of solid phase Silica hydrogel and prepares foamed material
Method, a kind of foamed material of fire-retardant type is prepared applied to building energy conservation, insulation, thermal insulation, sound-absorbing, fire protection field.
Background technology
Building energy conservation needs thermal conductivity factor small, the low fire-retardant type insulation of unit weight, heat-insulating material.Solid phase Silica hydrogel has with temperature
Covert characteristic, 108 degree Celsius to 550 degree Celsius produce solid phase, liquid phase, solid phase migration, nucleator, foam stabilizer,
Soften under the effect such as surfactant, foaming agent through infrared radiation, microwave irradiation foaming, then solid phase is can obtain through high-temperature maturing
Silica hydrogel foamed material.
The content of the invention
The purpose of the present invention：A kind of method that foamed material is prepared with solid phase Silica hydrogel is designed, profit is made in this way
There is standby solid phase Silica hydrogel foamed material thermal conductivity factor to be less than 0.043,95 kilograms of unit weight and compressive strength is more than 0.15Mp's
More satisfactory physical index, it can be widely applied to building energy conservation, insulation, thermal insulation, sound-absorbing, fire protection field.
Technical scheme：Solid phase Silica hydrogel starts to soften at 108 degree Celsius, works as temperature in the case where keeping pressure state
Degree, which reaches 150-190 degree Celsius, turns into full liquid phase.But with the liberalization for combining water and deviate to form new consolidate again at ambient pressure
Phase structure, there is the dynamic change of solid phase, liquid phase, solid phase in 108-550 degrees Celsius of this section, according to solid phase Silica hydrogel raw material not
It is otherwise varied with this section.To obtain a kind of solid phase Silica hydrogel foamed material, can be answered in solid phase Silica hydrogel foam process
With the mature technology and additive of the foam-formed technique such as conventional nucleator, foam stabilizer, surfactant, foaming agent, with shape
Into with improve foaming structure, form the products of different purposes.Nucleator includes in this preparation method：It is azodiisobutyronitrile, light
Matter calcium carbonate, fine grinding flyash.Surfactant includes：Powdered whiting, carbon black, white carbon, diatomite, bentonite, 12
Alkane benzene sulfonic acid sodium salt, OP-10.Foam stabilizer includes：Silicone oil, silicone emulsion, one kind of organosilicon or mixing.Foaming agent includes：Binary
Alcohol, trihydroxylic alcohol, pentane, AC foaming agents.Addition refers to other froth pulp techniques.
Make its softening with the heating of far-infrared radiation solid phase Silica hydrogel in this preparation method, the solid phase Silica hydrogel of softening passes through again
Microwave irradiation fast sol, absorb microwave energy with reference to water and tend to liberalization and then gasification, the steam that colloidal sol is blown out in microwave
Foam is formed under effect.The hard foam of new construction is formed by curing with the abjection colloidal sol for combining water.In this preparation method,
Far infrared thermal source includes electric boiling plate, electrically heated rod, can also use other energy productions such as natural gas, oil and its product, coal
Raw far infrared thermal source.Can more it be saved and efficiently using microwave frequency 2450MHz microwave source.
Embodiment
Embodiment, solid phase Silica hydrogel 1000g, neopelex 10g, OP-10 1g, azodiisobutyronitrile 15g,
Hard foam stabilizing silicone oil 0.1g, AC foaming agent（160 degrees Celsius）10g is stirred to 60 degrees Celsius of dischargings in high mixer, places
In micro-wave oven metal dish.In far infrared power 10KW, microwave power 4KW double heating microwave ovens：Far infrared power is complete
Microwave is opened after opening 10 minutes 2 minutes, keep far infrared power to stop heating after 50%20 minutes, take out and obtain after cooling
Solid phase Silica hydrogel hard foam.
Example does not represent the claimed whole protection contents of this patent, and phase identical with present patent application technical scheme
As each fall within present patent application request protection domain in.
Claims (1)
1. a kind of method that solid phase Silica hydrogel prepares foamed material, it is characterised in that：The preparation method comprises the steps：
（1）Take solid phase Silica hydrogel 1000g, neopelex 10g, OP-10 1g, azodiisobutyronitrile 15g, hard is steady
Silicone oil 0.1g and AC foaming agent 10g is steeped, is stirred in high mixer；
（2）When temperature rises to 60 DEG C, discharge and be positioned in micro-wave oven metal dish；
（3）In far infrared power 10KW, microwave power 4KW, microwave frequency 2450MHz double heating microwave ovens, first with remote red
After external power standard-sized sheet heats 10 min, it is then turned on microwave and heats 2 min, finally, under the conditions of keeping far infrared power 50%, heating
Stop after 20 min；
（4）Taken out after the cooling of above-mentioned material, you can obtain solid phase Silica hydrogel hard foam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310200799.4A CN104177115B (en) | 2013-05-27 | 2013-05-27 | A kind of method that solid phase Silica hydrogel prepares foamed material |
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| CN201310200799.4A CN104177115B (en) | 2013-05-27 | 2013-05-27 | A kind of method that solid phase Silica hydrogel prepares foamed material |
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| CN104177115A CN104177115A (en) | 2014-12-03 |
| CN104177115B true CN104177115B (en) | 2018-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440007A (en) * | 2020-03-16 | 2020-07-24 | 华南理工大学 | Method for preparing porous building thermal insulation material by using asbestos tailing silicon magnesium residues |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105503107B (en) * | 2015-12-10 | 2017-11-10 | 朱晓燕 | A kind of calcium carbonate aircraft crosses the border capture material and its preparation technology |
| CN110405933A (en) * | 2019-08-31 | 2019-11-05 | 乌鲁木齐益好天成新型节能材料有限公司 | Microwave, Near-infrared Double radiate SG fireproof heat insulation plate of outer wall production line |
| CN112934133B (en) * | 2021-03-15 | 2023-10-31 | 乌鲁木齐益好天成新型节能材料有限公司 | Preparation method of modified solid-phase silica gel |
| CN113045334A (en) * | 2021-04-14 | 2021-06-29 | 乌鲁木齐胜达天利建材科技有限公司 | Preparation method of fly ash and slag foamed ceramic |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404701A1 (en) * | 1994-02-15 | 1995-08-17 | Hoechst Ag | Composite foams, processes for their production and their use |
| FR2873685B1 (en) * | 2004-07-28 | 2007-06-22 | Saint Gobain Ct Recherches | PROCESS FOR OBTAINING POROUS CERAMICS |
| CN102584081A (en) * | 2012-01-05 | 2012-07-18 | 黄飞 | Foam concrete additive and foam concrete |
| CN102604291B (en) * | 2012-02-15 | 2014-01-22 | 四川大学 | Halogen-free flame-retardant polyvinyl alcohol foam material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440007A (en) * | 2020-03-16 | 2020-07-24 | 华南理工大学 | Method for preparing porous building thermal insulation material by using asbestos tailing silicon magnesium residues |
| CN111440007B (en) * | 2020-03-16 | 2021-07-20 | 华南理工大学 | Method for preparing porous building thermal insulation material by using asbestos tailing silicon magnesium residues |
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| CN104177115A (en) | 2014-12-03 |
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