CN1218994C - Fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board and its preparing method - Google Patents
Fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board and its preparing method Download PDFInfo
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- CN1218994C CN1218994C CN 02113998 CN02113998A CN1218994C CN 1218994 C CN1218994 C CN 1218994C CN 02113998 CN02113998 CN 02113998 CN 02113998 A CN02113998 A CN 02113998A CN 1218994 C CN1218994 C CN 1218994C
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- -1 polyethylene core Polymers 0.000 title claims abstract description 76
- 229920003023 plastic Polymers 0.000 title claims abstract description 37
- 239000004033 plastic Substances 0.000 title claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052736 halogen Inorganic materials 0.000 title claims description 40
- 150000002367 halogens Chemical class 0.000 title claims description 36
- 239000011162 core material Substances 0.000 title claims description 34
- 230000009970 fire resistant effect Effects 0.000 title claims description 22
- 238000004079 fireproofing Methods 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 17
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000004698 Polyethylene Substances 0.000 claims abstract description 46
- 229920000573 polyethylene Polymers 0.000 claims abstract description 44
- 238000002360 preparation method Methods 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 238000004898 kneading Methods 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000003063 flame retardant Substances 0.000 claims description 33
- 239000008188 pellet Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 10
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000005453 pelletization Methods 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 4
- 229920000578 graft copolymer Polymers 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000013000 roll bending Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 3
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 3
- XQSFXFQDJCDXDT-UHFFFAOYSA-N hydroxysilicon Chemical compound [Si]O XQSFXFQDJCDXDT-UHFFFAOYSA-N 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 150000002978 peroxides Chemical class 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- 150000008065 acid anhydrides Chemical class 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 2
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- 239000003094 microcapsule Substances 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 150000007518 monoprotic acids Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229960001866 silicon dioxide Drugs 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000011863 silicon-based powder Substances 0.000 claims description 2
- 229920001897 terpolymer Polymers 0.000 claims description 2
- OGWLTJRQYVEDMR-UHFFFAOYSA-F tetramagnesium;tetracarbonate Chemical compound [Mg+2].[Mg+2].[Mg+2].[Mg+2].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O OGWLTJRQYVEDMR-UHFFFAOYSA-F 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 claims description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 claims 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 claims 1
- 125000002917 halogen containing inorganic group Chemical group 0.000 claims 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000005469 granulation Methods 0.000 abstract description 4
- 230000003179 granulation Effects 0.000 abstract description 4
- 239000004411 aluminium Substances 0.000 abstract description 3
- 239000012792 core layer Substances 0.000 abstract 2
- 238000005520 cutting process Methods 0.000 abstract 2
- 239000012747 synergistic agent Substances 0.000 abstract 1
- 239000007822 coupling agent Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 206010051246 Photodermatosis Diseases 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 230000008845 photoaging Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention relates to a halogen-free flame-resistance polyethylene core layer material for a fireproof aluminium plastic composite board and a preparation method thereof. The core layer material contains 10 to 40 wt% of polyethylene, 5 to 20 wt% of modified polyethylene, 35 to 65 wt% of halogen-free flame-resistance agent, 0.5 to 10 wt% of flame-resistance synergistic agent, and 2.5 to 8.5 wt% of other auxiliary agents. The preparation method for the material comprises the steps: grain materials and board materials special for the flame-resistance polyethylene are prepared; parallel dual-screw extrusion hot cutting granulation technology and equipment are adopted; continuous kneading, extrusion, air cooling hot cutting technology and equipment are adopted to prepare the grain materials special for the flame-resistance polyethylene; and vacuum exhaust type single-screw extrusion board technology and equipment are adopted to prepare the board materials special for the flame-resistance polyethylene. The preparation method has the advantages of easy control of technology conditions, stable and reliable quality of the product, and continuous automatic production. The material is applied to compositely produce the fireproof aluminium plastic board, the grade of the combustion performance can reach the B1 grade of materials which is difficult to combust or the A grade of incombustible materials. Meanwhile, the rationalization performance and the processing forming performance of the material can satisfy the requirements of production technology.
Description
Technical field
The present invention relates to a kind of as new decorative material for building-fireproof aluminum-plastic board flame-proof polyethylene core material and preparation method thereof, particularly LSOH anti-flaming resistant sandwich materials with polyethylene and preparation method thereof.
Background technology
The composited aluminum and plastic decking core material that present patent application discloses a few days ago, uses and sells has two kinds of the fire-retardant core materials of pure resistant sandwich materials with polyethylene and Halogen.The former pure resistant sandwich materials with polyethylene at present on market mass selling be applied to the conventional aluminium plastic clad plate and make core material, account for more than 90%, but because its oxygen index only is 17.5, not fire-retardant, belong to inflammable material, the burning back is the fusion drippage easily, initiation fire spreads, so used by public security fire-fighting department and the restriction of building design and construction department at present, especially in important public place, as occasions such as drome, station, top grade entertainment place and high-grade Highrise buildings indoor and outdoor decorations, require to use difficult combustion or do not fire a grade fire proof construction finishing material.The latter is the Halogen inflaming retarding core material, though have certain flame retardant resistance, but because of body material Halogen or adding halogen/antimony fire retardant, when taking place, fire can produce a large amount of deleterious carbon monoxide and severe corrosive hydrogen halide smog because of burning, cause secondary pollution, thus with its aluminium-plastic panel of doing core material production because of do not meet environmental protection industry policy and require and in the world the developing direction of fire retardant chemistry building materials just progressively be eliminated.
Summary of the invention
Technical problem to be solved by this invention be to overcome the shortcoming of above-mentioned two kinds of core materials and provide a kind of Halogen, low cigarette, fire-retardant, resistance is dripped and Nonpoisonous, non-environmental-pollutionization, hot pressing bonding strength height and the flexible rolling of sheet material, be easy to the Non-halogen Fire Retardant Polyethylene Core Material Used For Aluminum Plates And Its Preparation Method of continuous large-scale production.
Solving the technology of the present invention problem is to realize by following technical proposals:
Fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board contains polyethylene, modified poly ethylene, halogen-free flame retardants, retardant synergist, other auxiliary agents etc., and its composition (weight percent) is: polyethylene 10～40%, modified poly ethylene 5～20%, halogen-free flame retardants 35～65%, retardant synergist 0.5～10%, other auxiliary agents 2.5～8.5%.
The preparation method of fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention is: prepare the special-purpose pellet of flame-proof polyethylene earlier, and then make sheet material.The preparation method of the special-purpose pellet of flame-proof polyethylene, be to mix selected part or all of halogen-free flame retardants composite by a certain percentage earlier, in common high-speed mixer, carry out pre-treatment with part or all of composite coupler again, being mixed together even back with other remaining components adopts parallel double-screw to extrude fervent prepared by granulating process pellet, but preferably adopt in the continuous milling machine of closed and carry out kneading, after the plasticizing evenly, send into major diameter by conical double-screw feeder, in the single screw extrusion machine of little length-to-diameter ratio, through head die face hot cut pellet, secondary cyclone cooling back packing.The special-purpose pellet of the flame-proof polyethylene of preparation adopts the single screw rod plate squeezing of vacuum exhaust formula Processes and apparatus, extrudes the back three-roll press-polishing and makes Zero halogen flame resistance polyethylene roll bending material.
Use the fireproof aluminum-plastic board of the compound production of this material, the combustionproperty classification can reach nonflammable material B1 level or uninflammability A level, and its physicochemical property and machine-shaping property can satisfy the manufacturing technique requirent of composited aluminum and plastic decking simultaneously.Characteristics such as this material has that halide-free smokeless, fire-retardant resistance drip, hot pressing bonding strength height and the flexible rolling of sheet material.
Its preparation technology's uniqueness of material of the present invention can adopt the parallel double-screw extruding and pelletizing process, but preferably adopts the special-purpose pellet of continuous kneading+extrude+air-cooled hot cut pellet prepared flame-proof polyethylene; Adopt the single screw rod plate squeezing of vacuum exhaust formula Processes and apparatus, preparation fireproof aluminum-plastic board special-purpose anti-flaming polyethylene board.Described preparation method, processing condition are easy to control, and stable and reliable product quality can realize continuous automatic production.
Embodiment
Polyethylene can be a high-pressure polyethylene in the fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention, one or more the composite compositions in high density polyethylene(HDPE) and/or the linear low density polyethylene etc., and its melt flow rate (MFR) is 0.15～5g/min.
Modified poly ethylene is one or more the composite compositions in the polarity graft copolymer of ethene-Sipacril 2739OF (EAA), ethene-vinyl acetate copolymer (EVA), terpolymer EP rubber (EPDM) and/or polyolefine and unsaturated monoprotic acid or unsaturated dibasic acid or MALEIC ANHYDRIDE (MAH) in the fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention, and its melt index is 0.25～250g/10min.Described MALEIC ANHYDRIDE polarity graft copolymer, it specifically consists of (weight part):
TPO or thermoplastic elastomer: 100
Polarity grafted monomer: 0.5～5.0
Peroxide initiator: 0.1～1.0
Grafting auxiliary agent: 0.05～0.5
The existence of polyethylene and modified poly ethylene in the fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention has constituted the matrix resin of whole fire-retardant polyethylene material.These resins have significantly improved the deterioration of caused material mechanical performance of fire retardant filling and processing characteristics, have guaranteed aluminium-plastic panel of the present invention flame-proof polyethylene core excellent comprehensive performances.
Fire retardant must be not halogenous in the fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention, inorganic mineral based flame retardant preferably, these halogen-free flame retardantss comprise the mixing compound of hydrated aluminum oxide, magnesium hydroxide, magnesium basic carbonate, alkali magnesium sulfate crystal whisker and/or these compounds, and its powder size is that 0.1～50 μ m and/or diameter are 0.1～0.5 μ m, the length whisker less than 80 μ m.These fire retardants reduce thermal value and flame temperature, the dilution combustion air in beginning thermal endothermic decomposition dehydration more than 200 ℃; Decompose the carburization zone of the metal oxide of generation, play an adiabatic protection and a resistance incarbonization, thereby the inhibition burning reduces the amount of being fuming in material surface formation one deck firm compact.
Retardant synergist is the organic class or the inorganic matter of energy synergy fire retardant function in the fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention, comprises the compound of red phosphorus microcapsule masterbatch or non-halogen phosphoric acid ester, hydroxy silicon oil, zinc borate or zinc oxide, silicon-dioxide or silicon powder, ammonium polyphosphate and/or these materials.The existence of these materials can be brought into play the synergistic effect between different flame retardant better, makes flame retardant effect more outstanding, and the fire retardant total amount reduces.
Other auxiliary agents comprise coupling agent, dispersion agent, rheological agent, oxidation inhibitor, UV light absorber, linking agent or tinting material etc. in the fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention.Wherein coupling agent is for effectively improving the material of fire retardant and polyethylene base material boundary face consistency, as titanate coupling agent, aluminate coupling agent, silane coupling agent and/or several composite couplers wherein, specifically comprise KR-TTS, DL-411-D, A-174, A-172, A-151 etc.; Dispersion agent and rheological agent etc. are dispersed and extrude processing fluidity for improving each component, thereby reduce the chemical substance of mixture viscosity, specifically comprise lipid acid and acid amides thereof or salt, low-molecular-weight polyolefin, organic silicone and/or fluorinated rheological agent etc.; Oxidation inhibitor (as 1010), UV light absorber (as UV-531), linking agent (as DCP), tinting material are (as TiO
2Or carbon black) etc. be for effectively improving the material of performances such as material thermo oxidative aging, photoaging, degree of crosslinking and color.
Fireproof aluminum-plastic board of the present invention comprises the special-purpose pellet of preparation flame-proof polyethylene earlier, and then makes sheet material with Halogen combustion resistant sandwich materials with polyethylene preparation method.The preparation method of the special-purpose pellet of flame-proof polyethylene mixes selected part or all of halogen-free flame retardants composite earlier by a certain percentage, in common high-speed mixer, carry out pre-treatment with part or all of composite coupler again, being mixed together even back with other remaining components adopts parallel double-screw to extrude fervent prepared by granulating process pellet, but preferably adopt in the continuous milling machine of closed and carry out kneading, after the plasticizing evenly, send into major diameter by conical double-screw feeder, in the single screw extrusion machine of little length-to-diameter ratio, through head die face hot cut pellet, secondary cyclone cooling back packing.Pellet is extruded the back three-roll press-polishing with vacuum exhaust formula single screw extrusion machine become flame-proof polyethylene roll bending material.Traditional granulation process method for open the refining or banburying after board-like pelletizing; Or with cold drawn pelletizing of single, double screw mixing expressed water, these methods are if be used for preparing this material, and then not only labour intensity is big, processing condition are wayward, and fire retardant disperses uneven, and it is stable that quality product can't keep, or because of after the product suction pelletizing when dry again, complex operation, power consumption consuming time.Characteristics according to fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention, the present invention adopts efficiently, clean and processing condition can accurately be controlled with the parallel double-screw of continuous automatic production and extrude fervent granulation process, but preferably adopt continuous kneading+extrude+air-cooled fervent granulation process and equipment.The special-purpose pellet of prepared Zero halogen flame resistance polyethylene can adopt the bigger twin screw plate squeezing technology of investment, and main is single screw rod plate squeezing Processes and apparatus that can adopt investment lower, carries out the continuous large-scale production of sheet material.
Fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention is compared with traditional halogen containing polymers core or halogen/antimony flame-proof polyethylene core, not containing halide not only, fusion is not dripped, and dependence generates non-harmful carbon dioxide and plays the moisture of cooling diluting effect and the metal oxide that energy covering material surface takes blocking effect through the thermal endothermic decomposition reaction of inorganic mineral based flame retardant under high temperature (burning) environment of coupling activation treatment.Owing to adopted aforesaid particular design on the prescription, therefore fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board of the present invention has characteristics such as low cost, halide-free smokeless, fire-retardant, hot pressing bonding strength height and the flexible rolling of sheet material, and when adopting the compound production fireproof aluminum-plastic board of material of the present invention, composite molding technique is functional, can satisfy the processing requirement of aluminium-plastic panel standard and continuous industry production line.
Specific embodiments of the present invention is provided by embodiment.
Example formulations sees attached list 1, and its concrete operations step is basic identical, and promptly the first step is carried out surface preparation by the composite back of all or part of halogen-free flame retardants of prescription with composite coupler, carries out in homogenizer.Second step, press the prescription weighing, be mixed together evenly with all the other components and extrude hot cut pellet technology, but preferably join kneading plasticizing under given technological temperature and time in the continuous milling machine with parallel double-screw; In the 3rd step, above-mentioned kneading plastifies uniform mixture and sends into the extruding pelletization unit through conical double-screw feeder, extrudes the die face hot cut pellet; In the 4th step, hot cut pellet is promptly made the flame-proof polyethylene pellet through the cooling of secondary cyclone separator, vibratory screening apparatus go-on-go packing.Prepared fire-retardant PE pellet adopts screw slenderness ratio greater than 32 the single screw rod plate squeezing of vacuum exhaust formula unit, becomes halogen-free flameproof PE roll bending material through three-roll press-polishing.
The homogenizer mixing time of using among the preparation method of the present invention is 2-10 minute, and mixing temperature is 50-70 ℃; The kneading time is 5～15 minutes in the milling machine continuously, and the kneading temperature is 80-160 ℃, and two hello the grain machine temperature of awl are 110～150 ℃, and the extruding pelletization temperature is 120～190 ℃, is preferably 130～185 ℃.
The extrusion board technological temperature is 130～200 ℃, is preferably 140～190 ℃, and 50～100 ℃ of tri-roll press machine temperature are preferably 60～95 ℃, and vacuum tightness is-and more than the 0.02MPa, screw slenderness ratio is more than 32, preferably is not less than 35.
Fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board technical performance index of the present invention is: tensile strength is 7.5～10.5MPa, flexural strength 9.5-28.5MPa, notched Izod impact strength: 7.0-14.0KJ/m
2, vicat softening temperature is 80～86 ℃, and the longitudinal size velocity of variation is 18～25%, 180 ° of stripping strength 5.0～8.5N/mm, and oxygen index is up to 34%-42%.
Detailed performance perameter sees attached list 2
Use the fireproof aluminum-plastic board of the compound production of Zero halogen flame resistance polyethylene core material of the present invention, the combustionproperty classification can reach nonflammable material B1 level or uninflammability A level, wherein: burning residue length minimum value is 155-655mm, flue-gas temperature is 85～125 ℃, the flame cusp height is 5-20mm, and the smoke density grade is 5-65.Detailed combustionproperty index sees attached list 3.
Subordinate list 1 Example formulations is formed
| Prescription is formed | Embodiment | |||||
| One | Two | Three | Four | Five | Six | |
| Polyethylene | 25 | 28 | 32 | 30 | 20 | 10 |
| Modified poly ethylene | 15 | 10 | 8 | 4 | 12 | 15 |
| Mg(OH) 2/AL(OH) 3 | 40 | 45 | 50 | 55 | 58 | 62 |
| Zinc borate/ZnO | 5 | |||||
| Silicon powder/magnesium salt whisker | 5-10 | 0.5-5 | ||||
| Red phosphorus/ammonium polyphosphate | 6 | 8 | 4 | |||
| Phosphoric acid ester/hydroxy silicon oil | 0-5 | 0.5-5 | 0.5-5 | 0.5-5 | 0-5 | 2-5 |
| The peroxide initiator | 0.1-0.5 | 0.1-0.5 | 0-0.5 | 0-0.5 | 0.1-0.5 | 0.1-0.5 |
| Composite coupler | 1.4 | 1.8 | 2.0 | 2.2 | 2.4 | 2.8 |
| Rheological agent | 0.1-0.5 | 0.1-0.5 | 0.1-0.5 | 0.1-0.5 | 0.1-0.5 | 0.1-0.5 |
| Dispersion agent | 1.5 | 1.8 | 2.0 | 2.2 | 2.4 | 2.8 |
| Other | 0-0.5 | 0-0.5 | 0-0.5 | 0-0.5 | 0-0.5 | 0-0.5 |
Subordinate list 2 Zero halogen flame resistance polyethylene core material performance index
| Interventions Requested | Unit | Testing method | Performance index |
| Tensile yield strength | MPa | GB1040 | 7.5-10.5 |
| Flexural strength | MPa | GB1042 | 9.5-28.5 |
| Notched Izod impact strength | KJ/m 2 | GB1043 | 7.0-14.0 |
| Vicat softening temperature | ℃ | GB1633 | 80-86 |
| 180 ° of stripping strengths (aluminium-mould) | N/mm | GB/T2790 | 5.0-8.5 |
| The longitudinal size velocity of variation | ％ | GB/T2490 | 18-25 |
| Oxygen index | ％ | GB2406 | 34-42 |
| Proportion | g/cm 3 | GB1033 | 1.28-1.48 |
| HCL content | mg/g | 0 |
Subordinate list 3 fireproof aluminum-plastic board combustionproperty indexs
| Interventions Requested | The method of inspection | The B1 level | The A level | Detect index |
| Burning residue length minimum value/mm | GB/T8625 | ＞0 | ≥150 | 155-655 |
| Burning residue length mean value/mm | GB/T8625 | ≥150 | ≥350 | 180-685 |
| Flue-gas temperature/℃ | GB/T8625 | ≤200 | ≤125 | 85-125 |
| Flame cusp height/mm | GB/T8626 | ≤150 | ≤150 | 5-20 |
| The smoke density grade | GB/T8627 | ≤75 | ≤15 | 5-65 |
Claims (9)
1. fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board, contain polyethylene, modified poly ethylene, halogen-free flame retardants, retardant synergist, other processing aids, it is characterized in that its content composition (weight percent) is: polyethylene: 10-40%, modified poly ethylene: 5-20%, halogen-free flame retardants: 35-65%, retardant synergist: 0.5-10%, other auxiliary agents: 2.5-8.5%.
2. fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board according to claim 1, it is characterized in that described polyethylene is one or more the composite compositions in high-pressure polyethylene, high density polyethylene(HDPE) and/or the linear low density polyethylene, its melt flow rate (MFR) is 0.15～5g/min.
3. fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board according to claim 1, it is characterized in that described modified poly ethylene is one or more the composite compositions in the polarity graft copolymer of ethylene-methacrylic acid copolymer, ethylene-vinyl acetate copolymer, terpolymer EP rubber and/or polyolefine and unsaturated monoprotic acid or unsaturated dibasic acid or MALEIC ANHYDRIDE, its melt index is 0.25～250g/10min.
4. fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board according to claim 3 is characterized in that described MALEIC ANHYDRIDE polarity graft copolymer, and it specifically consists of (weight part):
TPO or thermoplastic elastomer: 100
Polarity grafted monomer: 0.5～5.0
Peroxide initiator: 0.1～1.0
Grafting auxiliary agent: 0.05～0.5.
5. fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board according to claim 1, it is characterized in that described halogen-free flame retardants is that 0.1～50 μ m and/or diameter are 0.1～0.5 μ m, the length whisker less than 80 μ m for not halogen-containing inorganic mineral based flame retardant comprises the compound of aluminium hydroxide, magnesium hydroxide, magnesium basic carbonate, alkali magnesium sulfate crystal whisker and/or these compounds, its powder size.
6. fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board according to claim 1 is characterized in that described retardant synergist comprises the compound of red phosphorus microcapsule masterbatch or non-halogen phosphoric acid ester, hydroxy silicon oil, zinc borate or zinc oxide, silicon-dioxide or silicon powder, ammonium polyphosphate and/or these materials.
7. the preparation method of a fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board, comprise the special-purpose pellet of preparation flame-proof polyethylene earlier, and then make sheet material, the preparation method who it is characterized in that the special-purpose pellet of flame-proof polyethylene mixes selected part or all of halogen-free flame retardants composite earlier by a certain percentage, in common high-speed mixer, carry out pre-treatment with part or all of composite coupler again, being mixed together even back with other remaining components adopts parallel double-screw to extrude fervent prepared by granulating process pellet, also can adopt in the continuous milling machine of closed and carry out kneading, after the plasticizing evenly, send into major diameter by conical double-screw feeder, in the single screw extrusion machine of little length-to-diameter ratio, through head die face hot cut pellet, secondary cyclone cooling back packing.
8. the preparation method of fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board according to claim 7, it is characterized in that mixing time is 2～10 minutes in the high-speed mixer, mixing temperature is 50～70 ℃, the kneading time is 5～15 minutes in the milling machine continuously, 80～160 ℃ of kneading temperature, the conical double-screw feeder temperature is 110～150 ℃, and the extruding pelletization temperature is 120～190 ℃.
9. the preparation method of fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board according to claim 7, it is characterized in that Zero halogen flame resistance polyethylene pellet to preparation, adopt the single screw rod plate squeezing of vacuum exhaust formula Processes and apparatus, extrude the back three-roll press-polishing and make Zero halogen flame resistance polyethylene roll bending material, the extrusion board technological temperature is 130～200 ℃, 50～100 ℃ of tri-roll press machine temperature, vacuum tightness be-more than the 0.02MPa, screw slenderness ratio is more than 32.
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