CN104844832A - Rectorite composite fire retardant and preparation method thereof - Google Patents
Rectorite composite fire retardant and preparation method thereof Download PDFInfo
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- CN104844832A CN104844832A CN201510197905.7A CN201510197905A CN104844832A CN 104844832 A CN104844832 A CN 104844832A CN 201510197905 A CN201510197905 A CN 201510197905A CN 104844832 A CN104844832 A CN 104844832A
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- rectorite leng
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Abstract
The invention discloses a rectorite composite fire retardant and a preparation method thereof. The rectorite composite fire retardant is prepared by mixing graphite oxide, rectorite, sodium bicarbonate, ammonium polyphosphate and pentaerythritol according to a mass ratio of 1:1:0.5-1:0.1-1:3-6. The preparation method comprises the following steps: 1, respectively carrying out two-stage crushing treatment on rectorite by adopting a jaw crusher and a hammer crusher, sending the crushed rectorite to a high fine ball mill, and grinding to obtain rectorite powder with the fineness of 1-500 meshes; and 2, fully mixing the rectorite powder with graphite oxide, sodium bicarbonate, ammonium polyphosphate and pentaerythritol in a mechanical blending mode. The fire retardant with good smoke inhibition and fire retardation performances is obtained by mixing natural rectorite with natural compounding agents, and can effectively insulate heat and block heat transfer.
Description
Technical field
The present invention relates to fire product technical field, particularly relate to a kind of rectorite leng composite flame-retardant agent and preparation method thereof.
Background technology
Fire retardant is that a class can stop the macromolecular materials such as plastics ignited or suppress the auxiliary agent of propagation of flame.Rectorite leng, that one has special construction, comparatively rare clay of laminar silicate mineral, alternately piled up regularly under special natural condition by class mica unit layer and class montmorillonite unit layer, but be not the simple combination of the two, especially its banded microtexture is rather rare, rectorite leng mineral have high-temperature stability, high-ductility, adsorptivity and cationic exchange, aquation positively charged ion in rectorite leng structure between montmorillonite layer, can other be inorganic by a large amount of, organic cation exchanges, as sodium, aluminium, single or the compound ion such as silicon and quaternary amine, various mineral ion can be adsorbed, organic molecule and gas molecule, and this absorption and exchange are reversible.Rectorite leng interlayer aperture layer column two-dimensional channel structure, keeps stability under large-scale soda acid, hydro-thermal, temperature condition, and rectorite leng is natural possesses good UV blocking capability, remarkable to the absorption barriering effect of short wavelength light or ray.Rectorite leng, as the application of fire retardant, is at home and abroad not yet reported.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of rectorite leng composite flame-retardant agent and preparation method thereof is provided, smoke suppressing and the good fire retardant of flame retardant properties is mixed to get with natural rectorite leng and built agent, can effective heat insulation thermal insulation, block the transmission of heat.
The present invention adopts following technical scheme to achieve these goals:
A kind of rectorite leng composite flame-retardant agent is mixed with the mass ratio of 1:1:0.5-1:0.1-1:3-6 by graphite oxide, rectorite leng, sodium bicarbonate, ammonium polyphosphate, tetramethylolmethane.
Preferably, described rectorite leng composite flame-retardant agent is mixed with the mass ratio of 1:1:0.8:0.5:5 by graphite oxide, rectorite leng, sodium bicarbonate, ammonium polyphosphate, tetramethylolmethane.
The preparation method of described rectorite leng composite flame-retardant agent, comprises following preparation process:
(1) adopt jaw crusher, hammer mill to carry out two-stage break process to rectorite leng respectively, carry out grinding in the high thin ball mill of feeding after process and obtain rectorite leng powder, the fineness of described rectorite leng powder is 1-500 order;
(2) rectorite leng powder is fully mixed in the mode of mechanical blending with graphite oxide, sodium bicarbonate, ammonium polyphosphate and tetramethylolmethane.
Preferably, the fineness of the rectorite leng powder described in step (1) is 200-300 order.
Compared with the prior art, beneficial effect of the present invention is as follows:
The present invention is mixed to get smoke suppressing and the good fire retardant of flame retardant properties with natural rectorite leng and built agent, can effective heat insulation thermal insulation, blocks the transmission of heat; Add rectorite leng, rectorite leng has strong adsorption to gas, and hollow heat insulation thermal insulation can block the transmission of heat, at high temperature can produce water vapor simultaneously and block oxygen, oxygen index is high, and good heat resistance, make it have good fire retardation, rectorite leng itself is non-volatile, effect is lasting, cheap, smog is little, has fire-retardant, to press down cigarette and reduction toxic gas function concurrently; Graphite oxide is a kind of stratiform covalent compound, and this forms fine and close carbon-coating when burning, plays fire retardation; Sodium bicarbonate at high temperature decomposes generation a large amount of metal oxide, carbonic acid gas and water vapour, these the two kinds of gases discharged are non-flammable gases, effectively can dilute oxygen and other combustable gas concentrations of surrounding, in addition, sodium bicarbonate decomposes can consume amount of heat, thus reduces combustionmaterial surface temperature.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but the present invention is not limited only to these embodiments, and under the prerequisite not departing from present inventive concept, any improvement done all drops within protection scope of the present invention.
Embodiment 1:
A kind of rectorite leng composite flame-retardant agent is mixed with the mass ratio of 1:1:0.5:0.1:3 by graphite oxide, rectorite leng, sodium bicarbonate, ammonium polyphosphate, tetramethylolmethane.
The preparation method of described rectorite leng composite flame-retardant agent, comprises following preparation process:
(1) adopt jaw crusher, hammer mill to carry out two-stage break process to rectorite leng respectively, carry out grinding in the high thin ball mill of feeding after process and obtain rectorite leng powder, the fineness of described rectorite leng powder is 100 orders;
(2) rectorite leng powder is fully mixed in the mode of mechanical blending with graphite oxide, sodium bicarbonate, ammonium polyphosphate and tetramethylolmethane.
The performance test of the fire retardant of embodiment 1: fire-retardant index is 35, smoke density 72.
Embodiment 2:
A kind of rectorite leng composite flame-retardant agent is mixed with the mass ratio of 1:1:0.8:0.5:5 by graphite oxide, rectorite leng, sodium bicarbonate, ammonium polyphosphate, tetramethylolmethane.
The preparation method of described rectorite leng composite flame-retardant agent, comprises following preparation process:
(1) adopt jaw crusher, hammer mill to carry out two-stage break process to rectorite leng respectively, carry out grinding in the high thin ball mill of feeding after process and obtain rectorite leng powder, the fineness of described rectorite leng powder is 200 orders;
(2) rectorite leng powder is fully mixed in the mode of mechanical blending with graphite oxide, sodium bicarbonate, ammonium polyphosphate and tetramethylolmethane.
The performance test of the fire retardant of embodiment 2: fire-retardant index is 36, smoke density 70.
Embodiment 3:
A kind of rectorite leng composite flame-retardant agent is mixed with the mass ratio of 1:1:1:1:6 by graphite oxide, rectorite leng, sodium bicarbonate, ammonium polyphosphate, tetramethylolmethane.
The preparation method of described rectorite leng composite flame-retardant agent, comprises following preparation process:
(1) adopt jaw crusher, hammer mill to carry out two-stage break process to rectorite leng respectively, carry out grinding in the high thin ball mill of feeding after process and obtain rectorite leng powder, the fineness of described rectorite leng powder is 500 orders;
(2) rectorite leng powder is fully mixed in the mode of mechanical blending with graphite oxide, sodium bicarbonate, ammonium polyphosphate and tetramethylolmethane.
The performance test of the fire retardant of embodiment 3: fire-retardant index is 35, smoke density 73.
Claims (4)
1. a rectorite leng composite flame-retardant agent, is characterized in that: be mixed with the mass ratio of 1:1:0.5-1:0.1-1:3-6 by graphite oxide, rectorite leng, sodium bicarbonate, ammonium polyphosphate, tetramethylolmethane.
2. rectorite leng composite flame-retardant agent according to claim 1, is characterized in that: be mixed with the mass ratio of 1:1:0.8:0.5:5 by graphite oxide, rectorite leng, sodium bicarbonate, ammonium polyphosphate, tetramethylolmethane.
3. the preparation method of rectorite leng composite flame-retardant agent according to claim 1, is characterized in that: comprise following preparation process:
(1) adopt jaw crusher, hammer mill to carry out two-stage break process to rectorite leng respectively, carry out grinding in the high thin ball mill of feeding after process and obtain rectorite leng powder, the fineness of described rectorite leng powder is 1-500 order;
(2) rectorite leng powder is fully mixed in the mode of mechanical blending with graphite oxide, sodium bicarbonate, ammonium polyphosphate and tetramethylolmethane.
4. rectorite leng composite flame-retardant agent according to claim 3, is characterized in that: the fineness of the rectorite leng powder described in step (1) is 200-300 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197905.7A CN104844832A (en) | 2015-04-23 | 2015-04-23 | Rectorite composite fire retardant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197905.7A CN104844832A (en) | 2015-04-23 | 2015-04-23 | Rectorite composite fire retardant and preparation method thereof |
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| CN104844832A true CN104844832A (en) | 2015-08-19 |
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| CN201510197905.7A Pending CN104844832A (en) | 2015-04-23 | 2015-04-23 | Rectorite composite fire retardant and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765725A (en) * | 2012-08-10 | 2012-11-07 | 蓝烟（北京）科技有限公司 | Method for preparing hydrophobic silica aerogel with low cost |
| CN103274627A (en) * | 2013-05-27 | 2013-09-04 | 许盛英 | Rectorite flame-retardant foaming agent |
| CN103467969A (en) * | 2013-08-21 | 2013-12-25 | 青岛科技大学 | Composite flame retardant and application thereof to preparation of flame-retardant thermoplastic polyurethane elastomer material |
-
2015
- 2015-04-23 CN CN201510197905.7A patent/CN104844832A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765725A (en) * | 2012-08-10 | 2012-11-07 | 蓝烟（北京）科技有限公司 | Method for preparing hydrophobic silica aerogel with low cost |
| CN103274627A (en) * | 2013-05-27 | 2013-09-04 | 许盛英 | Rectorite flame-retardant foaming agent |
| CN103467969A (en) * | 2013-08-21 | 2013-12-25 | 青岛科技大学 | Composite flame retardant and application thereof to preparation of flame-retardant thermoplastic polyurethane elastomer material |
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Application publication date: 20150819 |