CN104556943A - Fire door core board and preparation method thereof - Google Patents
Fire door core board and preparation method thereof Download PDFInfo
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- CN104556943A CN104556943A CN201510053660.0A CN201510053660A CN104556943A CN 104556943 A CN104556943 A CN 104556943A CN 201510053660 A CN201510053660 A CN 201510053660A CN 104556943 A CN104556943 A CN 104556943A
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Abstract
The invention provides a fire door core board and a preparation method thereof. The fire door core board is mainly prepared from the following raw materials in parts by weight: 150-200 parts of expanded perlite, 15-30 parts of magnesium oxide, 30-45 parts of inorganic composite adhesive and 5-10 parts of white carbon black. The inorganic composite adhesive is mainly composed of calcium sulfate and aluminum potassium sulfate. The preparation method comprises the following steps: uniformly mixing and stirring the raw materials, carrying out cold-press molding or foam molding, and naturally drying. The fire door core board of the embodiment of the invention has the advantages of no toxicity, no corrosiveness, low cost and the like.
Description
Technical field
The present invention relates to fire door and make field, in particular to a kind of anti-fire door core board and preparation method thereof.
Background technology
At present, domestic anti-fire door core board be mainly divided into two kinds: the first anti-fire door core board, raw material is as binding agent with water glass, pearlstone, as filler, is made through high temperature hot pressing technique, because it needs the high temperature hot pressing of 200-300 DEG C after both mixing, production cycle is long, production efficiency is low, therefore causes cost high, contaminate environment in production process.The second anti-fire door core board, the binding agent used is magnesium chloride (bittern), when after the perlite fireproof door core board material moisture absorption made, magnesium chloride resolves into chlorion and magnesium ion, thus formed in acid galvanic cell, in this galvanic cell, iron is oxidized to ferric oxide, namely makes the corrosion of steel door-plate, in addition, the chlorine that the burning of high temperature naked light produces has severe toxicity.Even if employing coated shaped steel plate-as steel plate galvanized, also can corrode from the positions such as keyhole, hinge, skeleton, solder joint, operation touching scuffing, especially more should prohibit the use such anti-fire door core board in rainy season and the humid area such as coastland and south China.
In view of this, special proposition the present invention.
Summary of the invention
The first object of the present invention is to provide a kind of anti-fire door core board, and described anti-fire door core board solves the technical problem of above-mentioned existence, has nontoxic, corrosion-free and low cost and other advantages.
The second object of the present invention is to provide a kind of preparation method of described anti-fire door core board, this method solves the technical problem of above-mentioned existence, has that preparation method is simple, processing condition are gentle and the advantage such as pollution-free in production process.
In order to realize above-mentioned purpose of the present invention, spy by the following technical solutions:
Embodiments provide a kind of anti-fire door core board, its raw material primarily of following parts by weight is made: pearlstone 150-200 part, magnesium oxide 15-30 part, inorganic composite adhesive 30-45 part, white carbon black 5-10 part, the major ingredient of wherein said inorganic composite adhesive is calcium sulfate and potassium aluminium sulfate.
The anti-fire door core board of the embodiment of the present invention, binding agent used is a kind of inorganic composite adhesive, avoid and adopt magnesium chloride perishable and adopt water glass as the appearance of the technical problems such as binding agent production efficiency is low as binding agent in the past, be a kind of Halogen, nontoxic and free from corrosion environment-friendly type pearlstone anti-fire door core board, above raw material is all commercially available to be obtained.
Wherein, the major ingredient of this inorganic composite adhesive is calcium sulfate and potassium aluminium sulfate, have and strengthen cohesiveness between raw material, to contribute in its making processes easy-formation and ensure the hardness of anti-fire door core board and the effect of intensity, therefore the selection of this inorganic composite adhesive is also that contriver is just drawn by a large amount of experiments, preferably, the mass percent of calcium sulfate controls between 70-80%, the mass percent of potassium aluminium sulfate controls between 20-30%, calcium sulfate dosage is many, potassium aluminium sulfate is fewer as auxiliary dosage, both synergies are to reach the object of the various aspects of performance of bond effect and enhancing anti-fire door core board, more excellent, the mass percent of calcium sulfate is 75-80%, potassium aluminium sulfate is 20-25%, calcium sulfate can also get 73%, 74%, 78% etc., potassium aluminium sulfate can get 22%, 23%, 27% etc.
In the present invention, pearlstone is as filler, and its major ingredient is the SiO of 72%
2, the Al of 12.3%
2o
3, and a small amount of Fe, Mn, Mg, Na, K, Ca, the oxide compound of P, a kind of nontoxic, tasteless, do not fire, be stale-proof, acid and alkali-resistance, insulation, sound and thermal insulating material, inner in polynuclear plane, can be used as the agent structure of anti-fire door core board, its consumption is also larger relative to other raw materials, be preferably between 160-180 part, 165 parts can also be got, 170 parts, 175 parts etc., if consumption is excessive may cause the overweight bad transport of a body, use also inconvenient, if too small not the reaching of consumption makes anti-fire door core board institute expense, therefore need to control in suitable scope.
Magnesium oxide is a kind of solidifying agent, and have fire-retardant effect and can make to reach quick-drying object in preparation process, its addition be comparatively suitable for is 18-20 part, can also get 18 parts, 25 parts, 28 parts etc.Adding of white carbon black is acidity in order to reduce raw material, acidly crosses conference Men Tiyi is got rusty, and can also reduce costs adding of white carbon black, because do not add white carbon black must add too much magnesium oxide, its suitable addition can meet the demands between 7-9 part simultaneously.
The anti-fire door core board product intensity of the embodiment of the present invention is high, thermal conductivity is little, unit weight is adjustable, acid and alkali-resistance, hydrophobicity performance are good, high temperature resistant, sound insulation shock absorbing resilient is good, heat-insulating flame-retardant, cure without black smoke, naked light combustion after reach A1 level without the finished product fire performance after poison gas (meeting GB/T20285-2006 standard), stable performance, filling, meet GB12955-2008 " fire door " completely and newly issue standard.Its specific performance index is: folding strength is 1.0-1.5MPa, and thermal conductivity is 0.05-0.08W/m.k, compared to two kinds of anti-fire door core boards of the prior art, and excellent performance.
The embodiment of the present invention additionally provides a kind of preparation method of anti-fire door core board, its preparation method is simple, all raw materials are closed coldmoulding or foaming after stirring, namely product is obtained after seasoning, in concrete preparation process, processing condition are gentle, hot-forming without the need to carrying out, only needing to cold pressing or injecting mould foaming after adding whipping agent all can obtain product.
In order to make raw material mixing and stirring, general stir speed (S.S.) controls between 200-300rad/min, and the time of mix and blend is preferably between 30-40min.Stir speed (S.S.) is not easily too fast, can destroy the cost-effectively in each raw material, considers that churning time is also not easily long for economy, the too short object not having again fully mixing of churning time.
If a point tandem adds various raw material in the process of carrying out batch mixing, various raw material can be made more easily to mix, therefore preferably magnesium oxide and pearlstone is first added, binding agent and white carbon black is added again after stirring for some time, and in order to play the effect of reinforcement, can add a certain amount of reinforcing fiber before carrying out coldmoulding or foaming, during foaming, the vegetalitas whipping agent of environmental protection generally selected by whipping agent.
Further, the temperature of seasoning is 25-40 DEG C, and the time is 7-10d, and to make anti-fire door core board fully solidify under the state of seasoning, intensity is high.
Compared with prior art, beneficial effect of the present invention is:
(1) anti-fire door core board of the embodiment of the present invention is using inorganic compounding matrix material as binding agent, and bond effect is good, and the anti-fire door core board obtained is a kind of Halogen, nontoxic and free from corrosion environment-friendly type pearlstone fire-resistant door core;
(2) by synergy mutual between raw material, the anti-fire door core board excellent performance of the embodiment of the present invention, product intensity is high, thermal conductivity is little, unit weight is adjustable, acid and alkali-resistance, hydrophobicity performance are good, high temperature resistant, sound insulation shock absorbing resilient is good, heat-insulating flame-retardant, cure without black smoke;
(3) preparation method of the anti-fire door core board of the embodiment of the present invention is simple to operate, and processing condition are gentle, and can select concrete technology route flexibly, coldmoulding or foaming all can obtain product, and whipping agent is also by commercially available acquisition, and cost of manufacture is low.
Embodiment
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but it will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting the scope of the invention.Unreceipted actual conditions person in embodiment, the condition of conveniently conditioned disjunction manufacturers suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, be and can buy by commercially available the conventional products obtained.
Embodiment 1
The anti-fire door core board of the present embodiment, be made up of the raw material of following parts by weight:
Wherein, in inorganic composite adhesive, calcium sulfate is 85%, and potassium aluminium sulfate is 10%, other compositions 5% (weight percent)
The preparation method of anti-fire door core board is as follows:
1) pearlstone, magnesium oxide are added in container successively stir, under the condition of 200rad/min, stir 5min;
2) carry out slightly high speed after adding inorganic composite adhesive and white carbon black in said mixture to stir, under the condition of 400rad/min, stir 10min;
3) under the condition of 25 DEG C, be incubated 6-7 hour after adding fortifying fibre again, then pour in mould and carry out coldmoulding, pressurization 10min, pressurization pressure is 3MPa, obtains shaping anti-fire door core board;
4) spread after the demoulding carry out seasoning on ground, obtain finished product anti-fire door core board.
Embodiment 2
The anti-fire door core board of the present embodiment, be made up of the raw material of following parts by weight:
Wherein, in inorganic composite adhesive, calcium sulfate is 70%, and potassium aluminium sulfate is 30% (weight percent)
The preparation method of anti-fire door core board is as follows:
1) pearlstone, magnesium oxide are added in container successively stir, under the condition of 200rad/min, stir 10min;
2) carry out slightly high speed after adding inorganic composite adhesive and white carbon black in said mixture to stir, under the condition of 300rad/min, stir 20min;
3) stir after adding vegetalitas foaming agent water solution again and form flow-like, then pour in mould and carry out foaming, obtain shaping anti-fire door core board;
4) spread after the demoulding carry out seasoning on ground, envrionment temperature controls at 25-40 DEG C, spreads 7-10d and can obtain finished product anti-fire door core board.
Embodiment 3
The anti-fire door core board of the present embodiment, be made up of the raw material of following parts by weight:
Wherein, in inorganic composite adhesive, calcium sulfate is 75%, and potassium aluminium sulfate is 25% (weight percent)
The preparation method of anti-fire door core board is as follows:
1) pearlstone, magnesium oxide are added in container successively stir, under the condition of 300rad/min, stir 20min;
2) stir after adding inorganic composite adhesive and white carbon black in said mixture, under the condition of 300rad/min, stir 20min;
3) stir after adding vegetalitas foaming agent water solution again and form flow-like, then under the condition of 25 DEG C, be incubated 6-7 hour after adding fortifying fibre, then pour in mould and carry out foaming, obtain shaping anti-fire door core board;
4) spread after the demoulding carry out seasoning on ground, envrionment temperature controls at 25-40 DEG C, spreads 7-10d and can obtain finished product anti-fire door core board.
Embodiment 4
The anti-fire door core board of the present embodiment, be made up of the raw material of following parts by weight:
Wherein, in inorganic composite adhesive, calcium sulfate is 78%, and potassium aluminium sulfate is 20%, other compositions 2% (weight percent)
The preparation method of anti-fire door core board is as follows:
1) pearlstone, magnesium oxide are added in container successively stir, under the condition of 200rad/min, stir 10min;
2) carry out slightly high speed after adding inorganic composite adhesive and white carbon black in said mixture to stir, under the condition of 300rad/min, stir 20min;
3) under the condition of 25 DEG C, be incubated 6-7 hour after adding fortifying fibre again, then pour in mould and carry out coldmoulding, pressurization 10min, pressurization pressure is 3MPa, obtains shaping anti-fire door core board;
4) spread after the demoulding carry out seasoning on ground, envrionment temperature controls at 25-40 DEG C, spreads 7-10d and can obtain finished product anti-fire door core board.
Comparative example 1
Anti-fire door core board is made up of the raw material of following parts by weight:
The preparation method of anti-fire door core board is as follows:
1) pearlstone, magnesium oxide are added in container successively stir, under the condition of 200rad/min, stir 10min;
2) carry out slightly high speed after adding hydrated sodium silicate and white carbon black in said mixture to stir, under the condition of 300rad/min, stir 20min;
3) under the condition of 25 DEG C, be incubated 6-7 hour after adding fortifying fibre again, then pour into carry out in mould hot-forming, pressurization 10min, pressurization pressure is 3MPa, and temperature is 200-300 DEG C and obtains shaping anti-fire door core board;
4) spread after the demoulding carry out seasoning on ground, envrionment temperature controls at 25-40 DEG C, spreads 7-10d and can obtain finished product anti-fire door core board.
Comparative example 2
Anti-fire door core board is made up of the raw material of following parts by weight:
The preparation method of anti-fire door core board is as follows:
1) pearlstone, magnesium oxide and magnesium chloride are added in container successively stir, under the condition of 200rad/min, stir 10min;
2) carry out slightly high speed after adding white carbon black in said mixture to stir, under the condition of 300rad/min, stir 20min;
3) under the condition of 25 DEG C, be incubated 6-7 hour after adding fortifying fibre again, then pour in mould and carry out coldmoulding, pressurization 10min, pressurization pressure is 3MPa, obtains shaping anti-fire door core board;
4) spread after the demoulding carry out seasoning on ground, envrionment temperature controls at 25-40 DEG C, spreads 7-10d and can obtain finished product anti-fire door core board.
Experimental example 1
The product performance of anti-fire door core board above-described embodiment 1,2,4 and comparative example 1-2 prepared detect, and concrete outcome sees the following form 1:
Table 1 performance perameter compares
As can be seen from Table 1, the anti-fire door core board various aspects of performance of the embodiment of the present invention is excellent, High anti bending strength, thermal conductivity is little, corrosion-free, fire performance is superior, finished product fire performance reaches A1 level, meet GB12955-2008 " fire door " completely and newly issue standard, by comparison, preparation method in comparative example 1 not only processing condition is harsh, and the fire performance of the anti-fire door core board prepared is general, owing to adopting magnesium chloride as binding agent in comparative example 2, steel material is easily made to corrode, and have hypertoxic chlorine releasing once run into naked light burning, be detrimental to health, contaminate environment.
Although illustrate and describe the present invention with specific embodiment, however it will be appreciated that can to make when not deviating from the spirit and scope of the present invention many other change and amendment.Therefore, this means to comprise all such changes and modifications belonged in the scope of the invention in the following claims.
Claims (10)
1. an anti-fire door core board, is characterized in that, its raw material primarily of following parts by weight is made: pearlstone 150-200 part, magnesium oxide 15-30 part, inorganic composite adhesive 30-45 part, white carbon black 5-10 part;
The major ingredient of described inorganic composite adhesive is calcium sulfate and potassium aluminium sulfate.
2. anti-fire door core board according to claim 1, is characterized in that, its raw material primarily of following parts by weight is made: pearlstone 160-180 part, magnesium oxide 18-20 part, inorganic composite adhesive 35-40 part, white carbon black 7-9 part.
3. anti-fire door core board according to claim 1, is characterized in that, the major ingredient of described inorganic composite adhesive comprises: by weight percentage, calcium sulfate 70-80%, potassium aluminium sulfate 20-30%.
4. anti-fire door core board according to claim 3, is characterized in that, the major ingredient of described inorganic composite adhesive comprises: by weight percentage, calcium sulfate 75-80%, potassium aluminium sulfate 20-25%.
5. the anti-fire door core board according to any one of claim 1-4, is characterized in that, the folding strength of described anti-fire door core board is 1.0-1.5MPa, and thermal conductivity is 0.05-0.08W/m.k.
6. the preparation method of the anti-fire door core board described in claim 1-5, is characterized in that, comprises the steps: coldmoulding or foaming after raw material mixing and stirring, after seasoning and get final product.
7. the preparation method of anti-fire door core board according to claim 6, is characterized in that, the speed of mix and blend is 200-300rad/min.
8. the preparation method of anti-fire door core board according to claim 7, is characterized in that, the time of mix and blend is 30-40min.
9. the preparation method of anti-fire door core board according to claim 6, is characterized in that, the temperature of seasoning is 25-40 DEG C.
10. the preparation method of anti-fire door core board according to claim 9, is characterized in that, the time of seasoning is 7-10d.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510053660.0A CN104556943A (en) | 2015-02-02 | 2015-02-02 | Fire door core board and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092011A (en) * | 1993-03-13 | 1994-09-14 | 张华� | The production method of light synthetic wall board and technology |
| CN101555121A (en) * | 2009-05-13 | 2009-10-14 | 湖南工业大学 | Novel composite perlite board for fire prevention and heat insulation and manufacturing method thereof |
| CN101781113A (en) * | 2009-12-31 | 2010-07-21 | 李同生 | Inorganic fire-resistant foam filling material for door core board |
| CN101956433A (en) * | 2010-09-13 | 2011-01-26 | 天津安美环境科技工程有限公司 | Expanded perlite fire-proof composite core plate |
-
2015
- 2015-02-02 CN CN201510053660.0A patent/CN104556943A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092011A (en) * | 1993-03-13 | 1994-09-14 | 张华� | The production method of light synthetic wall board and technology |
| CN101555121A (en) * | 2009-05-13 | 2009-10-14 | 湖南工业大学 | Novel composite perlite board for fire prevention and heat insulation and manufacturing method thereof |
| CN101781113A (en) * | 2009-12-31 | 2010-07-21 | 李同生 | Inorganic fire-resistant foam filling material for door core board |
| CN101956433A (en) * | 2010-09-13 | 2011-01-26 | 天津安美环境科技工程有限公司 | Expanded perlite fire-proof composite core plate |
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Application publication date: 20150429 |