CN103788673B - The application in moisture retardant matizhi prepared by metal hydrate inorganic fire retardant - Google Patents
The application in moisture retardant matizhi prepared by metal hydrate inorganic fire retardant Download PDFInfo
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- CN103788673B CN103788673B CN201410052195.4A CN201410052195A CN103788673B CN 103788673 B CN103788673 B CN 103788673B CN 201410052195 A CN201410052195 A CN 201410052195A CN 103788673 B CN103788673 B CN 103788673B
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Abstract
The invention provides metal hydrate inorganic fire retardant and prepare the application in moisture retardant matizhi, and a kind of moisture retardant matizhi product.Metal hydrate inorganic fire retardant has low, the not hydrophilic feature of cost, its application in moisture retardant matizhi, can the use cost of reduction fire retardant by a relatively large margin, uses lower cost to reach the index of oxygen index >=30% that industry specifies; Simultaneously not hydrophilic due to it, matizhi product structure is had for the stability of additive in construction process and significantly promotes; In addition, choose the metal hydrate inorganic fire retardant of appropriate particle size, make the moisture protection of matizhi product after making moisture-proof barrier have lifting by a relatively large margin.
Description
(1) technical field
The present invention relates to metal hydrate inorganic fire retardant and prepare the application in moisture retardant matizhi, and obtained moisture retardant matizhi product.
(2) background technology
Moisture retardant matizhi is mainly used in the outer protection against the tide of the cyrogenic equipment pipeline cold insulation materials such as petrochemical industry LNG, prevent water vapour from entering cold insulation material interlayer inner, after meeting low temperature, condensation is expanded and is caused the damage of cold insulation material layer, thus destruction Cold-keeping Layer causes cold insulation effect to reduce.Simultaneously, owing to being all inflammable and explosive cryogenic liquid in the pipeline of cold insulation and equipment, therefore strict fire-protection rating requirement is all had to each integral part of cold insulation construction material, the most general fire protection requirement defining standard and oxygen index >=30% at present, namely before oxygen concentration is higher than 30%, material has very strong self-extinguishing, thus is reaching the fire-retardant target of material.
The fire retardant types that current moisture retardant matizhi uses is organic phosphorus flame retardant, its flame retarding efficiency is higher, but cost is also relatively high, and therefore general addition is all fewer simultaneously, other part powders are the viscosity making product reach suitable by adding filler.In formula, the content of colloid composition and the size of powder can affect the steam transmission coefficient index of moisture-proof barrier, and colloid composition is higher, diameter of particle is less, and the steam transmission coefficient of moisture-proof barrier is lower, and namely its moisture protection is stronger.
(3) summary of the invention
The object of the invention is to provide metal hydrate inorganic fire retardant and is preparing the application in moisture retardant matizhi, and a kind of moisture retardant matizhi product.
The technical solution used in the present invention is:
The application in moisture retardant matizhi prepared by metal hydrate inorganic fire retardant.
There is the shortcoming that polarity is large, particle diameter is large, cost is high in the organic phosphorus flame retardant used due to used fire-retardant matizhi, causes used fire-retardant matizhi oxygen index to be difficult to the bottleneck of breakthrough 30%, have impact on again the humidity resistance of matizhi simultaneously.The present invention adopts metal hydrate inorganic fire retardant, solves the impact on construction and product moisture protection of product wetting ability that fire retardant powder brings.Because metal hydrate inorganic fire retardant is mainly oxyhydroxide, its polarity is very low, even if add the wetting ability that also can not improve matizhi product in a large number.
Shown in the following formula of fire retardant mechanism of metal hydrate inorganic fire retardant:
R(OH)
2→RO+H
2O+70.6Kcal
Can see, metal hydrate fire retardant mechanism is: discharge crystal water during decomposes, this is a strong endothermic reaction, recept the caloric very large, the effect of cooling polymer can be played, the water vapour that simultaneous reactions produces can dilute inflammable gas, suppress spreading of burning, and the refractory metal oxides of new life has higher activity, the hot oxygen crosslinking reaction of its meeting catalytic polymer, form one deck charing film at polymer surfaces, heat transfer when charing film can weaken burning, mass transfer effect, thus play fire-retardant effect.In addition, this type oxide can also adsorb soot dust granule, plays and presses down cigarette effect.Metal hydrate fire retardant also has anti-dropping, short charing, non-volatile, does not ooze out, can be retained in the medium effect of polymkeric substance for a long time.
Described metal hydrate inorganic fire retardant accounts for 5 ~ 20% of raw material total mass for the preparation of consumption during moisture retardant matizhi.
The invention still further relates to a kind of moisture retardant matizhi, the raw material mass mixture ratio preparing described moisture retardant matizhi is as follows:
Described organic solvent is one of following or wherein two or more mixture: secondary butyl ester, diesel oil, ethylbenzene, toluene, ethyl acetate, methyl acetate, acetone;
Described filler is one of following or wherein two or more mixture: calcium carbonate, titanium dioxide, talcum powder;
Described softening agent is one of following or wherein two or more mixture: the many esters of gallic acid of aliphatic dibasic acid ester, Phthalates, benzene, benzoates, polyol ester class, chlorinated hydrocarbons, epoxies, citric acid ester type, polyester softening agent;
Described metal hydrate fire retardant is one of following or wherein two or more mixture: magnesium hydroxide, zinc hydroxide, calcium hydroxide, aluminium hydroxide etc.
Preferably, the raw materials quality preparing described moisture retardant matizhi is composed as follows:
Preferably, described metal hydrate fire retardant particle diameter is 10 ± 2 μm.The particle diameter of organic phosphorus flame retardant used is at present 44 μm, and what in other powder stuffing, particle diameter was minimum also has 37 μm, makes existing lower with the water vapor permeable coefficient of fire-retardant matizhi; The present invention is through the repeatedly bulk testing of multiple different size particle diameter, finally determine that the metal hydrate inorganic fire retardant of 10um particle diameter is the highest in cost performance, because its flame retarding efficiency is lower, need larger addition just can reach the flame retardant effect of expection, therefore a part of powder stuffing is needed also to replace to metal hydrate inorganic fire retardant, thus reach the significantly reduction of most of powder body material particle diameter in the present invention's formula, thus useful contribution is made to the reduction of water vapor permeation coefficient.Metal hydrate inorganic fire retardant is introduced in the present invention, although its flame retarding efficiency is lower, addition is also approximately 2 ~ 3 times of organic phosphorus flame retardant, but its price is also only 1/4 of organic phosphorus flame retardant, and thus overall use cost is significantly less than organic phosphorus flame retardant.
More preferred, the raw materials quality preparing described moisture retardant matizhi is composed as follows:
Moisture retardant matizhi preparation method of the present invention is as follows:
(1) will the raw material of predissolve (pitch, softening agent, organic solvent) be needed to add in reactor;
(2) cover reactor charging opening, start whipping appts, continuously stirring mixing makes material dissolution complete;
(3) lysate is put into stirrer, metal hydrate inorganic fire retardant, filler etc. are dropped in stirrer;
(4), after material all adds, Keep agitation makes it to mix;
(5) can discharging packaging after mixing.
Beneficial effect of the present invention is mainly reflected in: metal hydrate inorganic fire retardant has low, the not hydrophilic feature of cost, its application in moisture retardant matizhi, can the use cost of reduction fire retardant by a relatively large margin, use lower cost to reach the index of oxygen index >=30% that industry specifies; Simultaneously not hydrophilic due to it, matizhi product structure is had for the stability of additive in construction process and significantly promotes; In addition, choose the metal hydrate inorganic fire retardant of appropriate particle size, make the moisture protection of matizhi product after making moisture-proof barrier have lifting by a relatively large margin.
(4) embodiment
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in this:
Embodiment 1:
Pitch 200 kilograms is added, secondary butyl ester 300 kilograms, dioctyl phthalate (DOP) 50 kilograms of mix and blends in the closed reactor of 1 cubic metre; After pitch dissolves completely, add 150 kilograms, calcium carbonate, magnesium hydroxide 50 kilograms, goes out product A after being uniformly mixed.
Embodiment 2:
Pitch 200 kilograms is added, secondary butyl ester 300 kilograms, dioctyl phthalate (DOP) 50 kilograms of mix and blends in the closed reactor of 1 cubic metre; After pitch dissolves completely, add 100 kilograms, calcium carbonate, magnesium hydroxide 100 kilograms, goes out product B after being uniformly mixed.
Embodiment 3:
Pitch 200 kilograms is added, secondary butyl ester 300 kilograms, dioctyl phthalate (DOP) 50 kilograms of mix and blends in the closed reactor of 1 cubic metre; After pitch dissolves completely, add 50 kilograms, calcium carbonate, magnesium hydroxide 150 kilograms, goes out products C after being uniformly mixed.
The particular product performance parameters contrast of embodiment 1 ~ 3:
| Production code member | A | B | C |
| Density (kg/m 3） | 1.567 | 1.483 | 1.401 |
| Fugitive constituent (%) | 20.27 | 20.36 | 19.92 |
| Oxygen index (%) | 28 | 31 | 34 |
| Water vapor permeable coefficient | 0.205 | 0.106 | 0.077 |
| （perm） |
Consider from performance perameter when quality cost, B scheme can meet technical object of the present invention, and production cost product was lower more in the past, be preferred embodiment.
Claims (2)
1. a moisture retardant matizhi, is characterized in that the raw material mass mixture ratio preparing described moisture retardant matizhi is as follows:
Described organic solvent is one of following or wherein two or more mixture: secondary butyl ester, diesel oil, ethylbenzene, toluene, ethyl acetate, methyl acetate, acetone;
Described filler is one of following or wherein two or more mixture: calcium carbonate, titanium dioxide, talcum powder;
Described softening agent is one of following or wherein two or more mixture: the many esters of gallic acid of aliphatic dibasic acid ester, Phthalates, benzene, benzoates, polyol ester class, chlorinated hydrocarbons, epoxies, citric acid ester type, polyester softening agent;
Described metal hydrate fire retardant is one of following or wherein two or more mixture: magnesium hydroxide, zinc hydroxide, calcium hydroxide, aluminium hydroxide; Described metal hydrate fire retardant particle diameter is 10 ± 2 μm.
2. moisture retardant matizhi as claimed in claim 1, is characterized in that the raw materials quality preparing described moisture retardant matizhi is composed as follows:
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| CN201410052195.4A CN103788673B (en) | 2014-02-17 | 2014-02-17 | The application in moisture retardant matizhi prepared by metal hydrate inorganic fire retardant |
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| CN201410052195.4A CN103788673B (en) | 2014-02-17 | 2014-02-17 | The application in moisture retardant matizhi prepared by metal hydrate inorganic fire retardant |
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| CN103788673B true CN103788673B (en) | 2015-09-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104530733A (en) * | 2015-01-27 | 2015-04-22 | 浙江振阳绝热科技有限公司 | Flame-retardant asphalt mastic and preparation method thereof |
| CN105585280B (en) * | 2016-01-28 | 2017-11-24 | 浙江大学 | A kind of compositional flame-retardant miberal powder and antiflaming asphalt mixture for tunnel sheet pavement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB860659A (en) * | 1958-11-17 | 1961-02-08 | Benjamin Foster Company | Improvements in or relating to mastic compositions |
| CN1063498A (en) * | 1991-01-25 | 1992-08-12 | 天津市油毡厂 | Cold mati grease and manufacturing process thereof |
| CN101037314A (en) * | 2007-04-20 | 2007-09-19 | 东南大学 | Road surface material mixed with inorganic flaming-resistant agent and asphalt-mastic-broken stone |
| CN102775940A (en) * | 2012-08-22 | 2012-11-14 | 浙江德和绝热科技有限公司 | White mastics and preparation method thereof |
-
2014
- 2014-02-17 CN CN201410052195.4A patent/CN103788673B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB860659A (en) * | 1958-11-17 | 1961-02-08 | Benjamin Foster Company | Improvements in or relating to mastic compositions |
| CN1063498A (en) * | 1991-01-25 | 1992-08-12 | 天津市油毡厂 | Cold mati grease and manufacturing process thereof |
| CN101037314A (en) * | 2007-04-20 | 2007-09-19 | 东南大学 | Road surface material mixed with inorganic flaming-resistant agent and asphalt-mastic-broken stone |
| CN102775940A (en) * | 2012-08-22 | 2012-11-14 | 浙江德和绝热科技有限公司 | White mastics and preparation method thereof |
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Address after: 314000 Wang Industry Development Zone, Xiuzhou District, Zhejiang, Jiaxing Applicant after: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., LTD. Address before: 314000 Wang Industry Development Zone, Xiuzhou District, Zhejiang, Jiaxing Applicant before: Zhejiang Zhenshen Thermal Insulation Technology Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG ZHENSHEN THERMAL INSULATION TECHNOLOGY CO., LTD. TO: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., LTD. |
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Address after: 314000, Zhejiang, Xiuzhou District, Jiaxing Wang Zhen, west side of the two road, along the west side of Tong Road Applicant after: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., LTD. Address before: 314000 Wang Industry Development Zone, Xiuzhou District, Zhejiang, Jiaxing Applicant before: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., LTD. |
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