CN101759895A - Flame-retardant polyethylene for producing fireproof aluminum-plastic board cores, and preparation method thereof - Google Patents
Flame-retardant polyethylene for producing fireproof aluminum-plastic board cores, and preparation method thereof Download PDFInfo
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- CN101759895A CN101759895A CN200810238731A CN200810238731A CN101759895A CN 101759895 A CN101759895 A CN 101759895A CN 200810238731 A CN200810238731 A CN 200810238731A CN 200810238731 A CN200810238731 A CN 200810238731A CN 101759895 A CN101759895 A CN 101759895A
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Abstract
The invention discloses flame-retardant polyethylene for producing fireproof aluminum-plastic board cores, and a preparation method thereof. The flame-retardant polyethylene is prepared by taking aluminum hydroxide, magnesium hydroxide, zinc borate, single-alkoxy titanate, maleic anhydride grafted polyethylene and polyethylene as raw materials and performing high-temperature melting. The preparation method has the advantages of reasonable design of formulation, simple preparation process and low production cost, and the flame-retardant polyethylene prepared by the method is used to produce fireproof aluminum-plastic board cores and has good flame retardancy, so that the technical problem that aluminum-plastic boards produced by the prior art are poor in fireproof performance is solved.
Description
Technical field the invention belongs to produces fireproof aluminum-plastic board cores material technical field, relates to a kind of flame-proof polyethylene that fireproof aluminum-plastic board cores uses and preparation method thereof of producing.
The background technology composited aluminum and plastic decking is a kind of new decorative material, it be by aluminium and plastic core material under certain processing condition by the bonding sheet material that is composited of special-purpose tamanori.Have a series of excellent properties such as density is little, good rigidly, rich color, surface finish height because of it, and be widely used in fields such as curtain wall, indoor and outdoor decoration.The polyethylene plastics that the plastic plate core of prior art is used are inflammable, have the technical problem of fire resistance difference.
Summary of the invention the objective of the invention is to solve the technical problem that there is the fire resistance difference in prior art, provides a kind of flame-proof polyethylene that fireproof aluminum-plastic board cores uses and preparation method thereof of producing, to overcome the deficiencies in the prior art.
To achieve these goals, the present invention produces the flame-proof polyethylene that fireproof aluminum-plastic board cores is used, and is prepared from through high-temperature fusion by its weight proportion by following raw material: aluminium hydroxide 34.5, magnesium hydroxide 34.5, zinc borate 6, monoalkoxy type titanic acid ester 0.6, maleic anhydride grafted polyethylene 4.5 and polyethylene 20;
The preparation method that the present invention produces the flame-proof polyethylene that fireproof aluminum-plastic board cores uses is undertaken by following processing step:
1), 2500 purpose oxygen aluminum oxide, magnesium hydroxide and zinc borate are taken by weighing by described weight proportion, put in the high speed mixer, heating is also stirred;
When 2), treating that the high speed mixer temperature rises to 100 ℃, when again monoalkoxy type titanate coupling agent input being continued stirring and being heated to 125 ℃, drop into maleic anhydride grafted polyethylene compatilizer and polyethylene support more successively and stir and be warmed up to 170-175 ℃ of discharging, promptly get flame-proof polyethylene, be used to produce the raw material that fireproof aluminum-plastic board cores uses.
Formulating of recipe of the present invention is reasonable, and preparation technology is simple, and production cost is low, the flame-proof polyethylene of preparation, and it is good to be used to produce the fireproof aluminum-plastic board cores flame retardant properties, has solved the technical problem that there is the fire resistance difference in aluminium-plastic panel that prior art produces.
Embodiment
1), takes by weighing aluminium hydroxide 345Kg, magnesium hydroxide 345Kg, zinc borate 60Kg, monoalkoxy type titanic acid ester 6Kg, maleic anhydride grafted polyethylene 45Kg and polyethylene 200Kg;
2), 2500 purpose oxygen aluminum oxide, magnesium hydroxide and zinc borate are put into 1.5m
3In the high speed mixer, heating is also stirred;
When 3), treating that the high speed mixer temperature rises to 100 ℃, when again monoalkoxy type titanate coupling agent input being continued stirring and being heated to 125 ℃, drop into the stirring of maleic anhydride grafted polyethylene compatilizer and polyethylene support more successively and be warmed up to 170-175 ℃ of discharging, promptly get flame-proof polyethylene.
Raw material selection principle of the present invention, details are as follows:
1, the apolegamy of fire retardant: adopting aluminium hydroxide or magnesium hydroxide flame retardant system separately all is to be difficult to reach approximate harsh fire-retardant requirement, in order to obtain better flame retardant effect, through a large amount of experiment sievings, when being equipped with 46% magnesium hydroxide and 8% zinc borate with 46% aluminium hydroxide and carrying out synergistic, can obtain best flame retardant effect.Because it is 220 ℃ that the heat of aluminium hydroxide is divided hot temperature, the heat decomposition temperature of magnesium hydroxide is 330 ℃, and the two is together composite, can suppress the burning of macromolecular material in wide temperature range.The adding of zinc borate can improve the thermostability and the smoke suppressing effect of fire retardant material.The cooperative flame retardant effect of this system is the hard closely knit charring layer that has formed one deck inorganic ceramic shape in the time of incendiary, and iris action is played in transmission to heat, thereby improves flame retardant properties, reduce and be fuming concentration and prevent the fusion drippage.
2, the fire retardant size is to the influence of mechanics processing characteristics: in the fire retardant infill system that contains more than 80%, the decline of mechanics and processing characteristics is inevitable, in order to reduce this trend, select the more little fire retardant powder of particle diameter for use, can improve the mechanics and the processing characteristics of system more.The fire retardant diameter of particle is more little, and specific surface area is big more and the matrix bond face is just big more, in addition, also exist more chemically reactive point on the big specific surface area, more help the combination with coupling agent, superpolymer, grafting compatilizer, thereby obtain better mechanical property.The more little fire-retardant powder of particle diameter shows good flowability again after fully being coated, improve processing characteristics.Consider cost factor, we select the fire-retardant powder of particle diameter about 1um, magnesium hydroxide brucite powder.
3, the interface modification of fire retardant powder granule and matrix resin: we adopt the surface-modifying agent of coupling agent as fire-retardant powder.Coupling agent is a kind of surface-modifying agent with both sexes structure.It is several to be divided into silicane, metatitanic acid class, zircoaluminate class and complex compound thereof etc., a part of functional group in its molecule, can generate strong valence bond with the various radical reactions of powder surface combines, another part is a carbochain, can twine with organic polymer generation chemical reaction or physics, thereby with two kinds of firm coupling together of material that nature difference is very big.By comparison to a few class coupling agent results of use, find that monoalkoxy type titanate coupling agent TC-114 (product of auxiliary reagent factory, the south of the River, Changzhou) has best effect, its optimum amount is 0.8%.
4, introduce mechanical property and the plastic-aluminum combined adhesiveproperties that compatilizer improves flame-retardant system: in the matrix resin, a large amount of filler and fire-retardant powders, its excellent dispersion properties is most important.In flame-retardant system, add maleic anhydride grafted polyethylene, can strengthen the glutinous effect of taking off of interface flexible layer, help fire retardant homodisperse in the matrix resin, effectively improve the consistency of itself and matrix resin, thereby solved the problem of the mechanical properties decrease that a large amount of filler and fire-retardant powders cause and improved bonding force with the polymeric adhesion film.When the maleic anhydride grafted polyethylene consumption was 6%, the over-all properties of matrix material was better.Tensile strength is 7.0Mpa.
Claims (2)
1. produce the flame-proof polyethylene that fireproof aluminum-plastic board cores is used for one kind, it is characterized in that being prepared from through high-temperature fusion by its weight proportion: aluminium hydroxide 34.5, magnesium hydroxide 34.5, zinc borate 6, monoalkoxy type titanic acid ester 0.6, maleic anhydride grafted polyethylene 4.5 and polyethylene 20 by following raw material.
2. the preparation method of the flame-proof polyethylene that production fireproof aluminum-plastic board cores according to claim 1 is used is undertaken by following processing step:
1), 2500 purpose oxygen aluminum oxide, magnesium hydroxide and zinc borate are taken by weighing by described weight proportion, put in the high speed mixer, heating is also stirred;
When 2), treating that the high speed mixer temperature rises to 100 ℃, when again monoalkoxy type titanate coupling agent input being continued stirring and being heated to 125 ℃, drop into maleic anhydride grafted polyethylene compatilizer and polyethylene support more successively and stir and be warmed up to 170-175 ℃ of discharging, promptly get flame-proof polyethylene, be used to produce the raw material that fireproof aluminum-plastic board cores uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810238731A CN101759895A (en) | 2008-12-23 | 2008-12-23 | Flame-retardant polyethylene for producing fireproof aluminum-plastic board cores, and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810238731A CN101759895A (en) | 2008-12-23 | 2008-12-23 | Flame-retardant polyethylene for producing fireproof aluminum-plastic board cores, and preparation method thereof |
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| CN101759895A true CN101759895A (en) | 2010-06-30 |
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| CN200810238731A Pending CN101759895A (en) | 2008-12-23 | 2008-12-23 | Flame-retardant polyethylene for producing fireproof aluminum-plastic board cores, and preparation method thereof |
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| CN (1) | CN101759895A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104987577A (en) * | 2015-07-21 | 2015-10-21 | 上海婉静纺织科技有限公司 | Halogen-free flame-retardant high-molecular core material for fireproof aluminum-plastic plate, and preparation method thereof |
| CN105017613A (en) * | 2015-07-13 | 2015-11-04 | 上海金泛斯标识有限公司 | Core material for flame resistant aluminum-plastic panel and preparation method of core material |
-
2008
- 2008-12-23 CN CN200810238731A patent/CN101759895A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017613A (en) * | 2015-07-13 | 2015-11-04 | 上海金泛斯标识有限公司 | Core material for flame resistant aluminum-plastic panel and preparation method of core material |
| CN104987577A (en) * | 2015-07-21 | 2015-10-21 | 上海婉静纺织科技有限公司 | Halogen-free flame-retardant high-molecular core material for fireproof aluminum-plastic plate, and preparation method thereof |
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Open date: 20100630 |