CN102975427A - Fireproof flame-retardant steel and plastic composite plate and production method thereof - Google Patents
Fireproof flame-retardant steel and plastic composite plate and production method thereof Download PDFInfo
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- CN102975427A CN102975427A CN2012105081631A CN201210508163A CN102975427A CN 102975427 A CN102975427 A CN 102975427A CN 2012105081631 A CN2012105081631 A CN 2012105081631A CN 201210508163 A CN201210508163 A CN 201210508163A CN 102975427 A CN102975427 A CN 102975427A
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Abstract
The invention discloses a fireproof flame-retardant steel and plastic composite plate and a production method thereof. The composite plate uses a steel substrate as a surface layer (1) and also uses the steel substrate as a bottom layer; a middle layer is a halogen-free fireproof flame-retardant polyethylene (3); the plate is produced by continuous hot press and composition through hot smelting adhesives (2) and (4); and the total thickness of the plate is 4-6mm. By the production method, two extrusion machines and a pair of T-shaped opening moulds are adopted for coextrusion, one main extrusion machine is specially used for smelting and plasticizing the halogen-free fireproof flame-retardant polyethylene, the other extrusion machine is used for smelting of hot smelting adhesives (2) and (4); smelting materials in the two extrusion machines are simultaneously extruded in the T-shaped opening moulds; the hot smelting adhesives form thin layers to be distributed on the upper surface and the lower surface of the halogen-free fireproof flame-retardant polyethylene; and finally, the upper and lower surfaces of the halogen-free fireproof flame-retardant polyethylene and the surface and bottom layers of the steel substrates are subjected to continuous hot press and composition. The production method is high in production speed; and the product is high in rigidity, impact-resistant, effective and energy-saving, and has the characteristics of good toxin-free fireproof flame retardance, so that the steel and plastic composite plate is suitable for internal and external decoration of buildings, room partitioning, door coverage and post coverage.
Description
Technical field
The invention belongs to building and ornament materials and manufacture method thereof, be specifically related to a kind of fire protection flame retarding composited steel and plastic decking and manufacture method thereof.
Background technology
Composited aluminum and plastic decking is widely used in building decoration and promotes, lightweight, flat appearance, ornamental having outstanding performance, now be accompanied by the development of application technology, to having higher requirement aspect the functional application, fire protection flame retarding composited steel and plastic decking of the present invention has overcome the deficiency of composited aluminum and plastic decking anti-shock resistance, fire protection flame retarding, adopting steel substrate is that surface layer and bottom, Halogen fire protection flame retarding polyethylene are the intermediate layer, by hot-melt adhesive through the continuous compound sheet material that is prepared into of co-extrusion.This material has rigidity height, anti-shock resistance, anti-depression, peel strength height, has simultaneously good nontoxic fire retardant performance, use, processing, easy for installation, can be widely used in Discussion on architecture finishing, compartment, Bao Men and Bao Zhu, especially be applicable to the public places such as airport, gymnasium, subway.Manufacture method of the present invention adopts the coextru-lamination production technology, and speed of production is fast, energy-efficient, save material, low cost of manufacture, and the product peel strength is high, has overcome simultaneously the prior art composited steel and plastic decking and has adopted the low deficiency of the bonding compound peel strength of polymeric membrane.
Summary of the inventionThe object of the invention is to existing composited aluminum and plastic decking is improved at anti-impact resistance, fire protection flame retarding, a kind of fire protection flame retarding composited steel and plastic decking and manufacture method thereof are provided.
The object of the present invention is achieved like this: the present invention adds the main extruder melting with Halogen fire protection flame retarding polyethylene pellet, plasticizing, the hot-melt adhesive pellet adds auxiliary extruder melting simultaneously, the two extruders melting charge is extruded jointly through T-shaped mouthful of mould, wherein the hot-melt adhesive of melting forms thin layer by T-shaped mouthful of mould shunting, evenly distribute overlay on the Halogen fire protection flame retarding poly on, lower two sides, form three-decker, then at the steel substrate surface layer, between the steel substrate bottom totally five layers, with certain temperature, pressure becomes sheet material through continuous composite manufacturing, and the gross thickness of sheet material is 3～6mm.
Fire protection flame retarding composited steel and plastic decking manufacture method of the present invention adopts the coextrusion complex technique.Use two extruders, one secondary T-shaped mouthful of mould to carry out co-extrusion, wherein to go out machine be main extruder in an agent, is specifically designed to melting, the plasticizing of Halogen fire protection flame retarding polyethylene pellet; Another extruder is auxiliary extruder, be specifically designed to the melting of hot-melt adhesive pellet, the melting charge unification that main extruder and auxiliary extruder are extruded is through T-shaped mouthful of mould co-extrusion, mode with three layers of sheet materials is extruded, wherein hot-melt adhesive forms thin layer and evenly distributes and overlay on Halogen fire protection flame retarding polyethylene upper and lower faces, and is compound with steel substrate surface layer, bottom continuous hot-press at last.
Steel substrate surface layer of the present invention and steel substrate bottom are precoating steel strip with color coating or stainless strip, wherein the precoating steel strip with color coating is that employing hot dip galvanizing substrate or hot-dip coating aluminium-zinc alloy substrate are zinc-plated through the two-sided uniform thickness of surface treatment, and carry out fluorine carbon (PVDF) or high-durability polyester (PE) coloured coating in the steel band front, the steel band back side adopts the coating with bonds well performance to carry out coating.The thickness of steel substrate surface layer and steel substrate bottom is generally between 0.20～0.50mm, and steel substrate surface layer and bottom generally adopt the equal thickness identical material.
Halogen fire protection flame retarding polyethylene pellet of the present invention is to be the low density polyethylene (LDPE) of 30-45% and copolymer thereof, the inorganic fire-retarded material of magnesium hydroxide/aluminium hydroxide of 50-68%, the surfactant of 0.1-1%, antioxidant and other auxiliary agent of 1-5% by mass content, mixing through the efficient plasticizing of extruder, extrude, shear, make in advance pellet.The optimum value of the quality percentage composition of each component is: low density polyethylene (LDPE) and copolymer 30% thereof, the inorganic fire-retarded material 65% of magnesium hydroxide/aluminium hydroxide, surfactant 0.5%, antioxidant and other auxiliary agent 4.5%.
Surfactant of the present invention is more than or equal to C with chain length
12The surfactant of alkyl, its effect is the affinity that improves inorganic fire-retarded material and polyethylene and copolymer thereof.
Auxiliary agent of the present invention can be selected halogen-free flameproof synergist, antismoke agent, light stabilizer and lubricant etc., and its effect is to strengthen fire protection flame retarding, chemical stability and processing performance.
Hot-melt adhesive pellet of the present invention is that maleic anhydride is dissolved in acetone, then mix dispersion with treating grafting LLDPE (LLDPE), add again tackifier, antioxidant, initator, resistance crosslinking agent, send into the pellet of the Research of Grafting Malaic Anhydride Onto Polyethylene that extruder barrel, extruding pelletization form through Material sucking machine.
Hot-melt adhesive main component of the present invention is Research of Grafting Malaic Anhydride Onto Polyethylene.
Technological merit of the present invention is: the present invention uses material to substitute aluminium base by steel substrate to prior art surface layer, bottom, simultaneously Halogen fire protection flame retarding polyethylene middle layer is improved, rigidity, impact resistance and the anti-depression of fire protection flame retarding steel-plastic plate of the present invention are improved greatly, also improved the fire retardant performance of product, Halogen fire protection flame retarding polyethylene has excellent flame-proof smoke-suppressing and becomes dripping property of charcoal resistance, and good mechanical property is arranged and extrude processing characteristics, environment protection clean.Manufacture method of the present invention adopts coextrusion technology, the product peel strength is high, improved steel substrate and the poly bonding force of intermediate layer Halogen fire protection flame retarding, manufacture method of the present invention has the advantages that speed of production is fast, energy-efficient, save material, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of fire protection flame retarding composited steel and plastic decking of the present invention;
Among the figure: the 1st, the steel substrate surface layer; The 2nd, hot-melt adhesive; The 3rd, Halogen fire protection flame retarding polyethylene; The 4th, hot-melt adhesive; The 5th, the steel substrate bottom.
The specific embodiment
Embodiment 1:
Embodiment of the invention fire protection flame retarding composited steel and plastic decking, as shown in Figure 1, described composite plate comprises: the Halogen fire protection flame retarding polyethylene 3 that the steel substrate bottom 5 that steel substrate surface layer 1, the 0.4mm that 0.4mm is thick is thick and middle 3.1mm are thick, be bonded together by hot-melt adhesive 2 between steel substrate surface layer 1 and the Halogen fire protection flame retarding polyethylene 3, bond together by hot-melt adhesive 4 between steel substrate bottom 5 and the Halogen fire protection flame retarding polyethylene 3, wherein hot-melt adhesive 4 gross thickness are 0.1mm, two thin layer uniform thickness; Steel substrate surface layer and steel substrate bottom are the precoating steel strip with color coating.
The manufacture method of above-mentioned fire protection flame retarding composited steel and plastic decking, it comprises the steps:
1) prepares in advance Halogen fire protection flame retarding polyethylene pellet: be 32% low density polyethylene (LDPE) and copolymer thereof, 63.5% the inorganic fire-retarded material of magnesium hydroxide/aluminium hydroxide, 0.3% surfactant, 4.2% antioxidant and other auxiliary agent by mass content, mixing through the efficient plasticizing of extruder, extrude, shear, make in advance pellet.
2) coextrusion is compound: Halogen fire protection flame retarding polyethylene pellet is added the main extruder melting, plasticizing, the hot-melt adhesive pellet adds another auxiliary extruder melting simultaneously, the hot-melt adhesive of melting by shunting overlay on the Halogen fire protection flame retarding poly on, lower two sides, forming the upper strata is hot-melt adhesive 2, the intermediate layer is Halogen fire protection flame retarding polyethylene 3, lower floor is the three-decker of hot-melt adhesive 4, jointly extrude through T-shaped mouthful of mould together, then at steel substrate surface layer 1, between the steel substrate bottom 5 totally five layers with certain temperature, pressure becomes sheet material through continuous composite manufacturing, the gross thickness of sheet material is 4mm, and the speed of coextru-lamination is 1.7 m/mins.
Embodiment two:
The embodiment of the invention two fire protection flame retarding composited steel and plastic deckings, as shown in Figure 1, described composite plate comprises: the Halogen fire protection flame retarding polyethylene 3 that the steel substrate bottom 5 that steel substrate surface layer 1, the 0.3mm that 0.3mm is thick is thick and middle 3.3mm are thick, be bonded together by hot-melt adhesive 2 between steel substrate surface layer 1 and the Halogen fire protection flame retarding polyethylene 3, bond together by hot-melt adhesive 4 between steel substrate bottom 5 and the Halogen fire protection flame retarding polyethylene 3, wherein hot-melt adhesive 4 gross thickness are 0.1mm, two thin layer uniform thickness; Steel substrate surface layer and steel substrate bottom are stainless strip.
The manufacture method of above-mentioned fire protection flame retarding composited steel and plastic decking, it comprises the steps:
1) prepares in advance Halogen fire protection flame retarding polyethylene pellet: be 30% low density polyethylene (LDPE) and copolymer thereof, 67% the inorganic fire-retarded material of magnesium hydroxide/aluminium hydroxide, 0.8% surfactant, 2.2% antioxidant and other auxiliary agent by mass content, mixing through the efficient plasticizing of extruder, extrude, shear, make in advance pellet.
2) coextrusion is compound: Halogen fire protection flame retarding polyethylene pellet is added the main extruder melting, plasticizing, the hot-melt adhesive pellet adds another auxiliary extruder melting simultaneously, the hot-melt adhesive of melting by shunting overlay on the Halogen fire protection flame retarding poly on, lower two sides, forming the upper strata is hot-melt adhesive 2, the intermediate layer is Halogen fire protection flame retarding polyethylene 3, lower floor is the three-decker of hot-melt adhesive 4, jointly extrude through T-shaped mouthful of mould together, then at steel substrate surface layer 1, between the steel substrate bottom 5 totally five layers with certain temperature, pressure becomes sheet material through continuous composite manufacturing, the gross thickness of sheet material is 4mm, and the speed of coextru-lamination is 1.6 m/mins.
Embodiment three: present embodiment is most preferred embodiment
The embodiment of the invention three fire protection flame retarding composited steel and plastic deckings, as shown in Figure 1, described composite plate comprises: the Halogen fire protection flame retarding polyethylene 3 that the steel substrate bottom 5 that steel substrate surface layer 1, the 0.3mm that 0.3mm is thick is thick and middle 2.3mm are thick, be bonded together by hot-melt adhesive 2 between steel substrate surface layer 1 and the Halogen fire protection flame retarding polyethylene 3, bond together by hot-melt adhesive 4 between steel substrate bottom 5 and the fire protection flame retarding polyethylene 3, wherein hot-melt adhesive 4 gross thickness are 0.1mm, two thin layer uniform thickness; Steel substrate surface layer and steel substrate bottom are the precoating steel strip with color coating.
The manufacture method of above-mentioned fire protection flame retarding composited steel and plastic decking, it comprises the steps:
1) prepares in advance Halogen fire protection flame retarding polyethylene pellet: be 30% low density polyethylene (LDPE) and copolymer thereof, 65% the inorganic fire-retarded material of magnesium hydroxide/aluminium hydroxide, 0.5% surfactant, 4.5% antioxidant and other auxiliary agent by mass content, mixing through the efficient plasticizing of extruder, extrude, shear, make in advance pellet.
2) coextrusion is compound: Halogen fire protection flame retarding polyethylene pellet is added the main extruder melting, plasticizing, the hot-melt adhesive pellet adds another auxiliary extruder melting simultaneously, the hot-melt adhesive of melting by shunting overlay on the Halogen fire protection flame retarding poly on, lower two sides, forming the upper strata is hot-melt adhesive 2, the intermediate layer is Halogen fire protection flame retarding polyethylene 3, lower floor is the three-decker of hot-melt adhesive 4, jointly extrude through T-shaped mouthful of mould together, then at steel substrate surface layer 1, between the steel substrate bottom 5 totally five layers with certain temperature, pressure becomes sheet material through continuous composite manufacturing, the gross thickness of sheet material is 3mm, and the speed of coextru-lamination is 2.2 m/mins.
Claims (6)
1. a fire protection flame retarding composited steel and plastic decking is characterized in that, described composite plate is composited through continuous hot-press by hot-melt adhesive (2), (4) by steel substrate surface layer (1), steel substrate bottom (5) and intermediate layer Halogen fire protection flame retarding ethene (3).
2. a kind of fire protection flame retarding composited steel and plastic decking according to claim 1, it is characterized in that, described steel substrate surface layer (1) and steel substrate bottom (5) are the colored steel band of precoating or stainless strip, wherein the precoating steel strip with color coating is that employing hot dip galvanizing substrate or hot-dip coating aluminium-zinc alloy substrate are zinc-plated through the two-sided uniform thickness of surface treatment, and carry out fluorine carbon (PVDF) or high-durability polyester (PE) coloured coating in the steel band front, the steel band back side adopts the coating with bonds well performance to carry out coating; The thickness of steel substrate surface layer (1) and steel substrate bottom (5) is 0.2mm-0.50mm, and steel substrate surface layer and bottom generally adopt the equal thickness identical material.
3. a kind of fire protection flame retarding composited steel and plastic decking according to claim 1, it is characterized in that, described Halogen fire protection flame retarding polyethylene (3) is to be the low density polyethylene (LDPE) of 30-45% and copolymer thereof, the inorganic fire-retarded material of magnesium hydroxide/aluminium hydroxide of 50-68%, the surfactant of 0.1-1%, antioxidant and other auxiliary agent of 1-5% by mass content, mixing through the efficient plasticizing of extruder, extrude, shear, make in advance pellet, by extruder melting, plasticizing, be extruded into sheet material again.
4. according to claim 1 a kind of described fire protection flame retarding composited steel and plastic decking is characterized in that described hot-melt adhesive (2), (4) main component are Research of Grafting Malaic Anhydride Onto Polyethylenes.
5. the manufacture method of a fire protection flame retarding composited steel and plastic decking, it is characterized in that, described method adopts the coextrusion complex technique, use two extruders, one secondary T-shaped mouthful of mould to carry out co-extrusion, wherein to go out machine be main extruder in an agent, be specifically designed to Halogen fire protection flame retarding polyethylene pellet melting, plastify and extrude; Another extruder is auxiliary extruder, be specifically designed to the melting of hot-melt adhesive pellet and extrude, the melting charge unification that main extruder and auxiliary extruder are extruded is through T-shaped mouthful of mould co-extrusion, mode with three layers of sheet materials is extruded, wherein hot-melt adhesive (2), (4) evenly distribute and overlay on Halogen fire protection flame retarding polyethylene (3) upper and lower faces, carry out continuously compound with steel substrate surface layer (1), steel substrate bottom (5) at last.
6. the manufacture method of a kind of fire protection flame retarding composited steel and plastic decking according to claim 5, it is characterized in that, described hot-melt adhesive pellet is that maleic anhydride is dissolved in acetone, then mix dispersion with treating grafting LLDPE (LLDPE), add again tackifier, antioxidant, initator, resistance crosslinking agent, send into the pellet of the Research of Grafting Malaic Anhydride Onto Polyethylene that extruder barrel, extruding pelletization form through Material sucking machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105081631A CN102975427A (en) | 2012-12-03 | 2012-12-03 | Fireproof flame-retardant steel and plastic composite plate and production method thereof |
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| CN2012105081631A CN102975427A (en) | 2012-12-03 | 2012-12-03 | Fireproof flame-retardant steel and plastic composite plate and production method thereof |
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| CN102975427A true CN102975427A (en) | 2013-03-20 |
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| CN2012105081631A Pending CN102975427A (en) | 2012-12-03 | 2012-12-03 | Fireproof flame-retardant steel and plastic composite plate and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379027A (en) * | 2016-08-29 | 2017-02-08 | 江苏协诚科技发展有限公司 | Special equipment for production of steel-plastic composite wallboard and technology thereof |
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| JPS54155242A (en) * | 1978-05-30 | 1979-12-07 | Nippon Petrochemicals Co Ltd | Metal coating by melt injecting modified polyolefin powder |
| JPS57174244A (en) * | 1981-04-20 | 1982-10-26 | Dainichi Nippon Cables Ltd | Composite material |
| CN1445273A (en) * | 2002-03-19 | 2003-10-01 | 湖南省塑料研究所 | Fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board and its preparing method |
| CN101245659A (en) * | 2008-03-21 | 2008-08-20 | 朱金龙 | Nano-fluorine carbon self-cleaning metal composite board and manufacturing method thereof |
| CN201179746Y (en) * | 2007-09-28 | 2009-01-14 | 苏州多彩铝业有限责任公司 | Composite board |
| US20090155584A1 (en) * | 2007-12-17 | 2009-06-18 | E. I. Du Pont Nemours And Company | Highly Flame Retardant Panels |
-
2012
- 2012-12-03 CN CN2012105081631A patent/CN102975427A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155242A (en) * | 1978-05-30 | 1979-12-07 | Nippon Petrochemicals Co Ltd | Metal coating by melt injecting modified polyolefin powder |
| JPS57174244A (en) * | 1981-04-20 | 1982-10-26 | Dainichi Nippon Cables Ltd | Composite material |
| CN1445273A (en) * | 2002-03-19 | 2003-10-01 | 湖南省塑料研究所 | Fire-resistant polyethylene core material with no halogen applicable to fireproofing aluminum plastic board and its preparing method |
| CN201179746Y (en) * | 2007-09-28 | 2009-01-14 | 苏州多彩铝业有限责任公司 | Composite board |
| US20090155584A1 (en) * | 2007-12-17 | 2009-06-18 | E. I. Du Pont Nemours And Company | Highly Flame Retardant Panels |
| CN101245659A (en) * | 2008-03-21 | 2008-08-20 | 朱金龙 | Nano-fluorine carbon self-cleaning metal composite board and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379027A (en) * | 2016-08-29 | 2017-02-08 | 江苏协诚科技发展有限公司 | Special equipment for production of steel-plastic composite wallboard and technology thereof |
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Application publication date: 20130320 |