CN103395188A - Processing device of halogen-free flame retardant polyethylene core material for fireproofing aluminum-plastic plate - Google Patents
Processing device of halogen-free flame retardant polyethylene core material for fireproofing aluminum-plastic plate Download PDFInfo
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- CN103395188A CN103395188A CN2013103484312A CN201310348431A CN103395188A CN 103395188 A CN103395188 A CN 103395188A CN 2013103484312 A CN2013103484312 A CN 2013103484312A CN 201310348431 A CN201310348431 A CN 201310348431A CN 103395188 A CN103395188 A CN 103395188A
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Abstract
The invention discloses a processing device of a halogen-free flame retardant polyethylene core material for a fireproofing aluminum-plastic plate. The processing device is composed of an intermeshing co-rotating twin-screw extruder and a melt pump or a single screw extruder communicated with the intermeshing co-rotating twin-screw extruder, wherein the intermeshing co-rotating twin-screw extruder in the processing device is successively provided with a side feeding machine and a vent hole along the flowing direction of the material. The processing device provided by the invention enables the halogen-free flame retardant polyethylene core material for the fireproofing aluminum-plastic plate to be integrally formed in a processing manner, the operation is simple, a manufacturing technique process of an extruded product is greatly simplified, the production cycle is shortened, and the high efficiency and energy conservation are realized.
Description
Technical field
The present invention relates to the production equipment technical field, especially a kind of fireproof aluminum-plastic board processing unit (plant) of Zero halogen flame resistance polyethylene core.
Background technology
Aluminium-plastic panel is a kind of composite plate take plastics as core, and outer subsides aluminium sheet also applies the three-layer combined symmetry structural panel of ornamental or protective coating on surface, be widely used in the fields such as building and decoration., along with the fire protecting performance of the building important indicator as its security, obtained people's generally attention.In important public place, as occasions such as airport, station, top grade entertainment place and High Grade Tall Buildings indoor and outdoor decorations, the national correlation department regulation must be used difficult combustion or not fire a grade fire proof construction ornament materials at present.Therefore developing the environment-friendly fireproof aluminium-plastic panel is not only the requirement of national legislation and industrial policy, is also the demand in market., in order to meet the fire resistance of fireproof aluminum-plastic board, need to carry out highly effective flame-retardant to its core and process.
At present, fireproof aluminum-plastic board generally adopts the high halogen-free anti-flaming polyolefin core of filling.general, the high flame-retardant system fire retardant of filling mainly adopts aluminium hydroxide and magnesium hydroxide, the fire resistance of the sheet material that is obtained by its manufacturing is better, there is no the molten drop phenomenon, fire retardant has the smoke elimination function, during burning, fire retardant produces without pernicious gas, but this fire retardant relies on the water of its generation reaches fire-retardant purpose, therefore fire retardant need to reach higher addition, be generally 50～60%(percentage by weight) more than, but high amount of filling is very high to the requirement of mixing extrusion former, mainly contain following difficult point: one, because filler powder addition is large, use forced feed to add in extruder and be difficult to realize good dispersion effect, do not have the powder that has merged to be easy to emerge from exhaust outlet and vacuum port.Two, the mixing dispersion effect in resin is not good due to powder, will be difficult to guarantee the Uniform Flow of melt in board mould, can't guarantee the appearance and size of sheet material.Three, easily decompose because fire retardant is heated at a certain temperature, therefore will control the degree of mixed material Shear heating in Blending Processes, avoid occurring decomposing.
Usually fireproof aluminum-plastic board mainly adopts following process route: first prepare the special-purpose pellet of halogen-free flameproof modified poly ethylene, then with the extrusion molding in single screw extrusion machine and plate die head of flame-retardant modified polyethylene special-purpose material, and then it is compound to carry out the heat posted of aluminium skin.In order to guarantee the high addition of fire retardant in the halogen-free anti-flaming polyolefin core and the mechanical property of sheet material of filling, the PP Pipe Compound of fireproof aluminum-plastic board mainly adopts following preparation method: 1. need to add the auxiliary agents such as halogen-free flame retardants, retardant synergist, coupling agent, high molecular weight compatibilizer, dispersant; 2. need halogen-free flame retardants and corresponding additive are carried out pretreatment under uniform temperature in high-speed mixer; 3. put into banbury after adding other components to mix and carry out at a certain temperature the banburying processing; 4. adopt parallel dual-screw or single screw extrusion machine to carry out fervent granulation.Fireproof aluminum-plastic board adopts expressing technique and the equipment of exhaust-type single-screw and board mould usually with the extrusion molding of Zero halogen flame resistance polyethylene core, extrude by the three-roll press-polishing overlay film and cut rolling to finished product.
This preparation method mainly exists following shortcoming: 1), because flame-proof material has passed through again plasticizing and melting process, can reduce the physicochemical property of sheet material, affect the mobility of material, and make the energy consumption of product higher, production efficiency is low.2) the inorganic combustion inhibitor heated time is long, easily decomposes in process, can reduce the fire resistance of PLASTIC LAMINATED.3) because the scattered mixed performance of single screw rod is not good, draw ratio should be greater than 35, and are vented single-screw extruder.So flame-retardant modified polyethylene special-purpose material having relatively high expectations to single screw extruder.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose the processing unit (plant) of a kind of fireproof aluminum-plastic board with the Zero halogen flame resistance polyethylene core, the time processing moulding, easy and simple to handle.
In order to realize the foregoing invention purpose, the invention provides following technical scheme: a kind of fireproof aluminum-plastic board processing unit (plant) of Zero halogen flame resistance polyethylene core, comprise parallel dual-screw extruding machine, also comprise the Melt Pump or the single screw extrusion machine that are communicated with described parallel dual-screw extruding machine, described parallel dual-screw extruding machine is along being provided with successively side feeding machine and steam vent on the Flow of Goods and Materials direction.
Further, the draw ratio of described parallel dual-screw is greater than 44.
Further, the draw ratio of described single screw extrusion machine is 12～18.
Further, the compression ratio of described single screw extrusion machine is 2～3.
Further, the drive disk assembly in described Melt Pump is the helical gear of pair of meshing.
Further, described side feeding machine is connected with the halogen-free flame retardants feed bin.
Further, be provided with the metering feeding machine between described side feeding machine and described halogen-free flame retardants feed bin.
Compared with prior art, the present invention has the following advantages: adopt parallel dual-screw extruding machine to be connected with Melt Pump or single screw extrusion machine, make fireproof aluminum-plastic board one-shot forming in the processing of Zero halogen flame resistance polyethylene core, easy and simple to handle, greatly simplify the production process of extruded product, shorten the production cycle and realize efficient, energy-conservation.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should any restriction not arranged to protection scope of the present invention.
The processing unit (plant) of Zero halogen flame resistance polyethylene core of a kind of fireproof aluminum-plastic board as shown in Figure 1, comprise parallel dual-screw extruding machine 5, Melt Pump or the single screw extrusion machine 7, board mould 8, three-roller calendar 9, hauling machine 10 and the winder 11 that are linked in sequence according to the Flow of Goods and Materials direction, described parallel dual-screw extruding machine 5 is communicated with described Melt Pump or single screw extrusion machine 7, and described parallel dual-screw extruding machine 5 is along being provided with successively side feeding machine 4 and steam vent 6 on the Flow of Goods and Materials direction.Described side feeding machine 4 is communicated with through metering feeding machine 3 and halogen-free flame retardants feed bin 2.
Described parallel dual-screw extruding machine, the draw ratio of screw rod be more than 44, preferred draw ratio 48; Adopt three feed systems of configuration metering device, namely designed a main spout and two side spouts.Wherein resin binder and reclaimed materials are metered in the main spout of parallel dual-screw extruding machine, and halogen-free flame retardants is forced to add in parallel dual-screw extruding machine after being metered into the side feeding machine; Adopt the kneading member that shear ability is weak, mixing ability is stronger in described parallel dual-screw extruding machine, be mainly forward and neutral kneading member; Screw combinations is designed to transportation section, mixing section alternately forms, wherein transportation section is mainly the double thread element, hybrid element is mainly the double end kneading member, this screw combinations can guarantee adding of halogen-free flame retardants at high proportion, prevent the decomposition of fire retardant, and finally guaranteed the melting effect of material; The mode of carrying out the nature exhaust after side feeding entrance and the natural exhaust material blocking block of special opening have been adopted, overflowing of powder while having prevented high yield, guarantee stable lasting discharge of gas, guaranteed the accurate stable of the adding proportion of powder, guaranteed the stable operation of unit.
Melt Pump of the present invention comprises by the pump housing and a pair of angular gear in relative rotation within it and forming that the pump housing has adopted electrical heating and water cooling,, at the import and export of material, is respectively equipped with and imports and exports the material pressure checkout gear.The profile of tooth of the rational backlash of this Melt Pump and particular design can improve the output speed of flow, has reduced shearing and the time of staying of material in extruder, reduces extrusion temperature and pressure oscillation, to improve extrusion efficiency and end product quality.
Can adopt single screw extrusion machine to substitute described Melt Pump, the draw ratio of single screw extrusion machine is 12～18, and preferred draw ratio 12, this draw ratio can effectively have been improved mixture homogeneity and reduce to extrude fluctuation; Screw compression is than 2～3, and is preferred 2, can prevent that in the fire retardant extrusion, flow resistance is excessive, and the material extrusion pressure increases and causes the pyrolytic of material; Single screw core is designed with water cooling system, is conducive to the conveying of single screw rod feeding section material, can prevent that material from crossing thermal decomposition simultaneously; Transition body and die entrance place will seamlessly transit, and can prevent the decomposition that material lagging causes.
Prepare fireproof aluminum-plastic board with apparatus of the present invention, have following steps:
1. with polyethylene and ethylene-vinyl acetate copolymer, be delivered in feed bin through raw material conveying device, add in parallel dual-screw extruding machine in this cover processing unit (plant) by particulate material metering feeding machine;
2., with the halogen-free flame retardants aluminium-hydroxide powder, through powder delivery system, be delivered in its feed bin, by the powder metering feeding machine, join in the side feeding machine, force to add in the parallel dual-screw extruding machine in this cover processing unit (plant);
3. all materials enter in Melt Pump or single screw extrusion machine in this cover processing unit (plant) after parallel dual-screw extruding machine melting, plasticizing, mixing, exhaust, then by board mould, are extruded, by overlay film, traction, cooling, cutting edge, rolling to finished product; Wherein the parallel dual-screw extruding machine temperature is 120～160 ℃; Melt Pump or single screw extrusion machine temperature are 150～160 ℃; Mold temperature is 150～160 ℃; The three-roller calendar temperature is 50～95 ℃; Vacuum is-more than 0.08Mpa.
Adopt the present invention to prepare the advantage of fireproof aluminum-plastic board and the beneficial effect of generation:
(1) extrusion temperature is low is 120～160 ℃, compare obvious reduction with 120～190 ℃ of 180～200 ℃ of Chinese patent application 02124390.5 extruding pelletization temperature, 100～179 ℃ of Chinese patent application 200510093592.7 extruding pelletization temperature, Chinese patent application 02113998.9 extruding pelletization temperature with 110～170 ℃ of Chinese patent application 201110454033.X extruding pelletization temperature, thereby the reduction energy consumption, save the production run cost.
(2) do not need fire retardant is carried out pretreatment the fireproof aluminum-plastic board Zero halogen flame resistance polyethylene core that directly by resin raw material and halogen-free flame retardants, carries out the mixing extrusion moulding.In the present invention simultaneously, fireproof aluminum-plastic board has had significantly raising with output than independent dual-screw pelletizer group and single screw rod sheet extrusion unit with the mixing of Zero halogen flame resistance polyethylene core; the present invention simplifies the production process of extruded product greatly, shortens the production cycle and realizes efficient, energy-conservation.
Claims (7)
1. a fireproof aluminum-plastic board is with the processing unit (plant) of Zero halogen flame resistance polyethylene core, it is characterized in that: this covering device is comprised of parallel dual-screw extruding machine and the Melt Pump or the single screw extrusion machine that are communicated with described parallel dual-screw extruding machine, and the parallel dual-screw extruding machine in described processing unit (plant) is along being provided with successively side feeding machine and steam vent on the Flow of Goods and Materials direction.
2. fireproof aluminum-plastic board is with the processing unit (plant) of Zero halogen flame resistance polyethylene core as claimed in claim 1, and it is characterized in that: the draw ratio of described parallel dual-screw is greater than 44.
3. fireproof aluminum-plastic board is with the processing unit (plant) of Zero halogen flame resistance polyethylene core as claimed in claim 1, and it is characterized in that: the draw ratio of described single screw extrusion machine is 12～18.
4. fireproof aluminum-plastic board is with the processing unit (plant) of Zero halogen flame resistance polyethylene core as claimed in claim 4, and it is characterized in that: the compression ratio of described single screw extrusion machine is 2～3.
5. fireproof aluminum-plastic board is with the processing unit (plant) of Zero halogen flame resistance polyethylene core as claimed in claim 1, and it is characterized in that: the drive disk assembly in described Melt Pump is the helical gear of pair of meshing.
6. fireproof aluminum-plastic board is with the processing unit (plant) of Zero halogen flame resistance polyethylene core as claimed in claim 1, and it is characterized in that: described side feeding machine is connected with the halogen-free flame retardants feed bin.
7. fireproof aluminum-plastic board, with the processing unit (plant) of Zero halogen flame resistance polyethylene core, is characterized in that: be provided with the metering feeding machine between described side feeding machine and described halogen-free flame retardants feed bin as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103484312A CN103395188A (en) | 2013-08-12 | 2013-08-12 | Processing device of halogen-free flame retardant polyethylene core material for fireproofing aluminum-plastic plate |
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| CN2013103484312A CN103395188A (en) | 2013-08-12 | 2013-08-12 | Processing device of halogen-free flame retardant polyethylene core material for fireproofing aluminum-plastic plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549574A (en) * | 2020-11-25 | 2021-03-26 | 浙江金科复合材料科技有限公司 | Processing device of halogen-free flame-retardant polyethylene core material for fireproof aluminum-plastic panel |
Citations (6)
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| WO2001083195A2 (en) * | 2000-05-03 | 2001-11-08 | Davis-Standard Corporation | Twin screw extruders for processing wood fiber and process for same |
| CN101050290A (en) * | 2007-04-29 | 2007-10-10 | 沈阳化工学院 | Dynamic sulfurated retardant composite material of polypropylene without halogen, and preparation method |
| CN101139459A (en) * | 2007-08-30 | 2008-03-12 | 上海金发科技发展有限公司 | Non-bittern flame-proof thermostable polycarbonate and acrylonitrile-butadiene-phenylethene grafted copolymer alloy resin and method for preparing same |
| CN101486814A (en) * | 2008-01-17 | 2009-07-22 | 立讯精密工业（深圳）有限公司 | Method for producing low-smoke halogen-free non-nitrogen flame-retardant heat-shrinkable material sheathed tube and casing tube |
| CN202685262U (en) * | 2012-07-10 | 2013-01-23 | 上海科悦高分子材料有限公司 | Halogen-free flame retardant aluminum-plastic plate manufacturing device |
| CN203438526U (en) * | 2013-08-12 | 2014-02-19 | 天华化工机械及自动化研究设计院有限公司 | Device for processing halogen-free flame-retardant polyethylene core material for fireproof aluminum-plastic panel |
-
2013
- 2013-08-12 CN CN2013103484312A patent/CN103395188A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001083195A2 (en) * | 2000-05-03 | 2001-11-08 | Davis-Standard Corporation | Twin screw extruders for processing wood fiber and process for same |
| CN101050290A (en) * | 2007-04-29 | 2007-10-10 | 沈阳化工学院 | Dynamic sulfurated retardant composite material of polypropylene without halogen, and preparation method |
| CN101139459A (en) * | 2007-08-30 | 2008-03-12 | 上海金发科技发展有限公司 | Non-bittern flame-proof thermostable polycarbonate and acrylonitrile-butadiene-phenylethene grafted copolymer alloy resin and method for preparing same |
| CN101486814A (en) * | 2008-01-17 | 2009-07-22 | 立讯精密工业（深圳）有限公司 | Method for producing low-smoke halogen-free non-nitrogen flame-retardant heat-shrinkable material sheathed tube and casing tube |
| CN202685262U (en) * | 2012-07-10 | 2013-01-23 | 上海科悦高分子材料有限公司 | Halogen-free flame retardant aluminum-plastic plate manufacturing device |
| CN203438526U (en) * | 2013-08-12 | 2014-02-19 | 天华化工机械及自动化研究设计院有限公司 | Device for processing halogen-free flame-retardant polyethylene core material for fireproof aluminum-plastic panel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549574A (en) * | 2020-11-25 | 2021-03-26 | 浙江金科复合材料科技有限公司 | Processing device of halogen-free flame-retardant polyethylene core material for fireproof aluminum-plastic panel |
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