CN104961426A - Fireproof door core - Google Patents
Fireproof door core Download PDFInfo
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- CN104961426A CN104961426A CN201510319130.6A CN201510319130A CN104961426A CN 104961426 A CN104961426 A CN 104961426A CN 201510319130 A CN201510319130 A CN 201510319130A CN 104961426 A CN104961426 A CN 104961426A
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Abstract
The invention discloses a fireproof door core, which comprises the following raw materials by weight part: 45-50 of magnesium chloride, 5-8 of sodium chloride, 25-30 of magnesium oxide, 1-3 of nano-magnesium hydroxide, 25-35 of vermiculite power, 10-13 of perlite powder, 1-2 of gamma-methacryloxypropyltrimethoxysilane, 0.3-0.5 of stearic acid, 1-2 of sodium polyacrylate, 1-2 of decabromodiphenyl ethane, 1-2 of antimony trioxide, 2-4 of a silane coupling agent KH530, 25-40 of a special glue, 0.6-0.7 of polypropylene fiber, and a proper amount of water. According to the invention, the vermiculite power and perlite powder are firstly subjected to PH adjustment, then modification is carried out, so that a lot of cations therein are better replaced by cations, the compatibility is increased, the dispersion state is changed to be more uniform, and the disadvantage that adding of inorganic powder into the fireproof door core can cause negative effect on fireproof door core bending properties can be improved.
Description
Technical field
The present invention relates to a core field, is exactly a kind of fire-resistant door core.
Background technology
Door panel market history of forming is not long, kind roughly divides one, two, three generations: early stage first-generation door panel bath of glass and water glass are made by high temperature hot pressing; S-generation door panel magnesia cement, as binding agent, also has and adopts foam pattern to produce.These magnesite materials such as magnesium oxide and magnesium chloride (bittern) all belong to alkaline metal salt.After the water suction moisture absorption, the sodium in an alkali metal salt, magnesium isoreactivity positively charged ion and metal generation chemical reaction, the steel-wood structure that can corrode fire door causes the rotten core of rotten door.As the burning of high temperature naked light, then more can produce hypertoxic dense smoke and fatal chlorine; Third generation perlite door panel quality has improved a lot but improvement of still needing.The development progressive and scientific and technological along with the epoch, matter measured perlite door panel new product is also come out one after another.By the technical requirements of country to fire door quality test, perlite door panel must have higher intensity, should not easy fracture in production and handling process; It is not loose not mashed that perlite door panel should be able to stand soaked guarantee for a long time; The component materials such as adhesive cures agent could should not corrode the rotten core of not rotten door by shutter body steel plate in neutral; Meanwhile, door panel also should possess good hydrophobicity performance, and do water absorption test and want to present lotus leaf dewdrop effect, could effectively stop water suction to be got damp like this, favourable reduction plate glue consumption, just can economize on resources and reduce costs.The technical progress of perlite door panel is most important for the sound development of fire door industry.
The most of organic or composite fire retardant of current China has toxicity, and the material combustion after fire retardant process can produce more toxic gas, works the mischief to human body; The resistance leachability of fire retardant is poor, and lasting flame retardant effect is poor, and mixing of inorganic vermiculite causes negative impact to fire-resistant door core bending property.
Summary of the invention
The object of the present invention is to provide a kind of fire-resistant door core of good flame retardation effect.
Above-mentioned purpose is realized by following scheme:
A kind of fire-resistant door core, is characterized in that: the starting material of described fire-resistant door core comprise the raw material of following weight parts:
Magnesium chloride 45-50, sodium-chlor 5-8, magnesium oxide 25-30, nano-sized magnesium hydroxide 1-3, vermiculite power 25-35, perlite powder 10-13, γ-methyl allyl acyloxypropyl trimethoxysilane 1-2, stearic acid 0.3-0.5, sodium polyacrylate 1-2, TDE 1-2, antimonous oxide 1-2, silane coupling agent KH530 2-4, special adhesive 25-40, polypropylene fibre 0.6-0.7, suitable quantity of water;
Described special adhesive is obtained by the raw material of following weight parts: urea-formaldehyde glue 40-50, polyoxyethylene oleic acid ester 1-2, sticky rice flour 20-30, sodium alkyl benzene sulfonate 0.3-0.6, calcium propionate 0.1-0.2, copper sulfate 0.3-0.5, sodium Diacetate 1-2, Silane coupling agent KH550 1-2;
The preparation method of described fire-resistant door core material is:
(1) after, suitable quantity of water, vermiculite power, perlite powder, stearic acid, γ-methyl allyl acyloxypropyl trimethoxysilane being added container successively, 5-15min is stirred under the stirring velocity of 100-150r/min, leave standstill after 1-2 hour, adjust ph is 8-9, then adds sodium polyacrylate, after stirring, ball milling 1-2h, then by products therefrom millipore filtration or filter paper vacuum filtration, after washing, dry 2-4h at 60-80 DEG C, obtains modified mineral powder for subsequent use;
(2), by suitable quantity of water, magnesium oxide and magnesium chloride add in container successively, and stir, under the stirring velocity of 50-150r/min, stir 5-15min, leave standstill after 1-2 hour, obtain mixture A;
(3), in mixture A, modified mineral powder is added, 1200-2000r/min churning time 13-20min, then add all the other raw materials, 1200-2000r/min churning time 15-20min, under the temperature condition of 40-50 DEG C, be incubated 5-14 hour again, obtain mixture B;
(4), complete in the mould of non-woven fabrics by pouring in mixture B, at temperature 100-150 DEG C, pressurize under 100-200 ton pressure 23-28min, again at temperature 260-270 DEG C, pressurize under 300-350 ton pressure 30-38min, again at temperature 300-320 DEG C, pressurize under 370-400 ton pressure 30-38min, namely obtains shaping fire-resistant door core.
Described a kind of fire-resistant door core, is characterized in that:
The preparation method of described special adhesive is:
(1), after calcium propionate, copper sulfate, sodium Diacetate mixing, add appropriate deionized water, stir under 10-20 rev/min, obtain compound sterilizing liquid for subsequent use;
(2) sticky rice flour and appropriate amount of deionized water mix, 13-15min is stirred under 30-40 rev/min, add polyoxyethylene oleic acid ester, Silane coupling agent KH550 again, continue to stir 10-15min, then be warming up to 35-40 DEG C and start to add compound sterilizing liquid, after continuing to stir 10-15 min, add all the other raw materials, after stirring 5-8min, be cooled to 25-30 DEG C of discharging, obtain product.
Beneficial effect of the present invention is:
(1) the present invention passes through first to vermiculite power, perlite powder, after first regulating PH, carry out modification again, make a large amount of positively charged ions wherein better replace by positively charged ion, increase consistency, and change its dispersion state, divide breaking up more even, improve the shortcoming being added by inorganic powder and in fire-resistant door core, fire-resistant door core bending property is caused to negative impact, thus can by adding more mineral powder, gain in strength with this and increase flame retardant resistance, preventing pollution, and operating process is simple, be easy to preparation, it can be used as strengthening agent to be filled into mechanical property and flame retardant properties that fire-resistant door core can improve a core material,
(2) the present invention adopts part to make glutinous rice glue replacement chemical glue by oneself, self-control glutinous rice glue production technique is simple, produce moderate temperature, production safety is reliable, starch material is renewable to be easy to get, and cost is low, adds emulsion stabilizer better effects if, the use of composite bactericide reduces commercial sterilization composition, improves safety when product uses;
(3) carrying out in pressure process to starting material, changing temperature and pressures by three times, making the anti-fire door core board intensity that obtains higher, each raw material is compatible more abundant, glue infiltration evenly, bond firmer.
Embodiment
A kind of fire-resistant door core, the starting material of described fire-resistant door core comprise the raw material of following weight (kg):
Magnesium chloride 45, sodium-chlor 5, magnesium oxide 25, nano-sized magnesium hydroxide 3, vermiculite power 35, perlite powder 13, γ-methyl allyl acyloxypropyl trimethoxysilane 1, stearic acid 0.3, sodium polyacrylate 2, TDE 1, antimonous oxide 1, silane coupling agent KH530 2, special adhesive 25, polypropylene fibre 0.6, suitable quantity of water;
Described special adhesive is obtained by the raw material of following weight (kg): urea-formaldehyde glue 45, polyoxyethylene oleic acid ester 1.2, sticky rice flour 20, sodium alkyl benzene sulfonate 0.6, calcium propionate 0.2, copper sulfate 0.5, sodium Diacetate 1, Silane coupling agent KH550 1;
The preparation method of described fire-resistant door core material is:
(1) after, suitable quantity of water, vermiculite power, perlite powder, stearic acid, γ-methyl allyl acyloxypropyl trimethoxysilane being added container successively, 15min is stirred under the stirring velocity of 100r/min, leave standstill after 2 hours, adjust ph is 8.5, then adds sodium polyacrylate, after stirring, ball milling 2h, then by products therefrom millipore filtration or filter paper vacuum filtration, after washing, dry 4h at 60 DEG C, obtains modified mineral powder for subsequent use;
(2), by suitable quantity of water, magnesium oxide and magnesium chloride add in container successively, and stir, under the stirring velocity of 120r/min, stir 15min, leave standstill after 2 hours, obtain mixture A;
(3), in mixture A add modified mineral powder, 1500r/min churning time 20min, then add all the other raw materials, 1600r/min churning time 15min, then be incubated 12 hours under the temperature condition of 50 DEG C, obtain mixture B;
(4), complete in the mould of non-woven fabrics by pouring in mixture B, at temperature 100 DEG C, pressurize under 200 tons of pressure 25min, again at temperature 270 DEG C, pressurize under 350 tons of pressure 35min, then at temperature 320 DEG C, pressurize under 380 tons of pressure 35min, namely obtains shaping fire-resistant door core.
Described a kind of fire-resistant door core, is characterized in that:
The preparation method of described special adhesive is:
(1), after calcium propionate, copper sulfate, sodium Diacetate mixing, add appropriate deionized water, stir under 20 revs/min, obtain compound sterilizing liquid for subsequent use;
(2) sticky rice flour and appropriate amount of deionized water mix, 15min is stirred under 30 revs/min, add polyoxyethylene oleic acid ester, Silane coupling agent KH550 again, continue to stir 15min, then be warming up to 40 DEG C and start to add compound sterilizing liquid, after continuing stirring 15 min, add all the other raw materials, after stirring 8min, be cooled to 30 DEG C of dischargings, obtain product.
The present embodiment carries out performance test according to described in technique scheme to obtained anti-fire door core board, and test result is:
The density of anti-fire door core board is 310-340kg/cm
3; Folding strength is 8.2MPa; Ultimate compression strength is 0.8MPa; Thermal conductivity is 0.04W/ (m.k); Water ratio is 8%; Bulking factor is 0.2%; Fire endurance is 2h; Resistance to combustion temperature is 1300 DEG C; Sound absorption coefficient is 0.05, and this fire-resistant door core belongs to non-fire material A1 level.
Claims (2)
1. a fire-resistant door core, is characterized in that: the starting material of described fire-resistant door core comprise the raw material of following weight parts:
Magnesium chloride 45-50, sodium-chlor 5-8, magnesium oxide 25-30, nano-sized magnesium hydroxide 1-3, vermiculite power 25-35, perlite powder 10-13, γ-methyl allyl acyloxypropyl trimethoxysilane 1-2, stearic acid 0.3-0.5, sodium polyacrylate 1-2, TDE 1-2, antimonous oxide 1-2, silane coupling agent KH530 2-4, special adhesive 25-40, polypropylene fibre 0.6-0.7, suitable quantity of water;
Described special adhesive is obtained by the raw material of following weight parts: urea-formaldehyde glue 40-50, polyoxyethylene oleic acid ester 1-2, sticky rice flour 20-30, sodium alkyl benzene sulfonate 0.3-0.6, calcium propionate 0.1-0.2, copper sulfate 0.3-0.5, sodium Diacetate 1-2, Silane coupling agent KH550 1-2;
The preparation method of described fire-resistant door core material is:
(1) after, suitable quantity of water, vermiculite power, perlite powder, stearic acid, γ-methyl allyl acyloxypropyl trimethoxysilane being added container successively, 5-15min is stirred under the stirring velocity of 100-150r/min, leave standstill after 1-2 hour, adjust ph is 8-9, then adds sodium polyacrylate, after stirring, ball milling 1-2h, then by products therefrom millipore filtration or filter paper vacuum filtration, after washing, dry 2-4h at 60-80 DEG C, obtains modified mineral powder for subsequent use;
(2), by suitable quantity of water, magnesium oxide and magnesium chloride add in container successively, and stir, under the stirring velocity of 50-150r/min, stir 5-15min, leave standstill after 1-2 hour, obtain mixture A;
(3), in mixture A, modified mineral powder is added, 1200-2000r/min churning time 13-20min, then add all the other raw materials, 1200-2000r/min churning time 15-20min, under the temperature condition of 40-50 DEG C, be incubated 5-14 hour again, obtain mixture B;
(4), complete in the mould of non-woven fabrics by pouring in mixture B, at temperature 100-150 DEG C, pressurize under 100-200 ton pressure 23-28min, again at temperature 260-270 DEG C, pressurize under 300-350 ton pressure 30-38min, again at temperature 300-320 DEG C, pressurize under 370-400 ton pressure 30-38min, namely obtains shaping fire-resistant door core.
2. a kind of fire-resistant door core according to claim 1, is characterized in that:
The preparation method of described special adhesive is:
After the mixing of calcium propionate, copper sulfate, sodium Diacetate, add appropriate deionized water, stir under 10-20 rev/min, obtain compound sterilizing liquid for subsequent use;
(2) sticky rice flour and appropriate amount of deionized water mix, 13-15min is stirred under 30-40 rev/min, add polyoxyethylene oleic acid ester, Silane coupling agent KH550 again, continue to stir 10-15min, then be warming up to 35-40 DEG C and start to add compound sterilizing liquid, after continuing to stir 10-15 min, add all the other raw materials, after stirring 5-8min, be cooled to 25-30 DEG C of discharging, obtain product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319130.6A CN104961426A (en) | 2015-06-10 | 2015-06-10 | Fireproof door core |
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| CN201510319130.6A CN104961426A (en) | 2015-06-10 | 2015-06-10 | Fireproof door core |
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| CN104961426A true CN104961426A (en) | 2015-10-07 |
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| CN201510319130.6A Pending CN104961426A (en) | 2015-06-10 | 2015-06-10 | Fireproof door core |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054213A (en) * | 2018-07-11 | 2018-12-21 | 合肥伊只门窗有限公司 | A kind of fire-resistant door core and preparation method thereof |
| CN110790563A (en) * | 2019-11-15 | 2020-02-14 | 郑州赋安防火门有限公司 | Fireproof door filling material and preparation method thereof |
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| CN2189528Y (en) * | 1994-03-28 | 1995-02-15 | 赵清华 | High-strength, light and fire-retardant composite plate |
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| CN101407401A (en) * | 2008-10-31 | 2009-04-15 | 辽宁钢城门业有限公司 | Floating bead anti-fire door core board |
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2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054213A (en) * | 2018-07-11 | 2018-12-21 | 合肥伊只门窗有限公司 | A kind of fire-resistant door core and preparation method thereof |
| CN110790563A (en) * | 2019-11-15 | 2020-02-14 | 郑州赋安防火门有限公司 | Fireproof door filling material and preparation method thereof |
| CN110790563B (en) * | 2019-11-15 | 2021-11-02 | 郑州赋安防火门有限公司 | Fireproof door filling material and preparation method thereof |
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Application publication date: 20151007 |
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