CN107057191A - A kind of hollow plastic formwork and preparation method thereof - Google Patents
A kind of hollow plastic formwork and preparation method thereof Download PDFInfo
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- CN107057191A CN107057191A CN201710302715.6A CN201710302715A CN107057191A CN 107057191 A CN107057191 A CN 107057191A CN 201710302715 A CN201710302715 A CN 201710302715A CN 107057191 A CN107057191 A CN 107057191A
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- auxiliary agent
- reinforcer
- screw extruder
- double screw
- charging aperture
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/695—Flow dividers, e.g. breaker plates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a kind of hollow plastic formwork and preparation method thereof, using black salvage material as core, colored salvage material and fire proofing are as Surface coating material, and it is the colored, plastic formwork that inner core is black to obtain outward appearance.Black salvage material is cheap, but caloric receptivity is big, and scope of expanding with heat and contract with cold is big, requires high to assembly.Colored salvage material is difficult heat absorption, assembled easy, but salvage material utilization scope is wide, and price is higher.And the template include biside plate and its between reinforcer, it is ensured that material is saved while intensity, cost is reduced；The plastic formwork cost of the present invention is low, recepts the caloric small, is unlikely to deform, and assembly is convenient；Fire proofing only is added in Surface coating material, flame-retardancy requirements are met while the building requirements of template are ensured.
Description
Technical field
The present invention relates to a kind of hollow plastic formwork and preparation method thereof.
Background technology
Building template uses steel template earliest, develops into bamboo glue pattern plate, plank sheathing, PVC foam solid template, current city
, it is necessary to cut down a large amount of trees based on plank sheathing, scrapped using 6-8 times.There is heavier-weight, fixed not side in PVC template
Just, reclaim difficult, access times 30 times or so, marketing is not opened.Existing hollow plastic building template uses unit extrusion,
Color is unified inside and outside product.Problems with is occurred according to practical application：1. black salvage material is cheap, but caloric receptivity is big,
Special summer expands with heat and contract with cold scope greatly, requires high to assembly.2. white is difficult heat absorption, assembled easy, but salvage material utilizes model
Enclose wide, price is higher, and product profit is low.3. other color recovery material expand with heat and contract with cold situation also superior to black, but dimensions of market is limited,
No matter any color recovery material at present can only unit extrusion, it is unified inside and outside sheet material color.And the plastic formwork in industry is used
Reclaim PP broken materials and carry out formula granulation, then produce extrusion board, its complex process, manufacturing cost is high, and intensity is difficult to
Reach the standard of construction material.Meanwhile, pure plastic formwork easily causes fire in construction by electroslag welding, if all using fire-retardant
Material, the then template produced can not meet building use requirement.
Based on above reason, in the urgent need to providing a kind of new building materials and preparation method thereof.
The content of the invention
It is colored using black salvage material as core the invention provides a kind of hollow plastic formwork and preparation method thereof
Salvage material (colour refers to other colors in addition to black) and fire proofing are as Surface coating material, and it is coloured silk to obtain outward appearance
Color, inner core are the plastic formwork of black.Black salvage material is cheap, but caloric receptivity is big, and scope of expanding with heat and contract with cold is big, to assembly
It is required that high.Colored salvage material is difficult heat absorption, assembled easy, but salvage material utilization scope is wide, and price is higher.And the mould
Plate include biside plate and its between reinforcer, it is ensured that material is saved while intensity, cost is reduced；The plastic formwork of the present invention
Cost is low, recepts the caloric small, is unlikely to deform, and assembly is convenient；Fire proofing only is added in Surface coating material, is ensureing building for template
Build and flame-retardancy requirements are met while requirement.
Inventor also found, is added separately to by two kinds of auxiliary agents of specific proportioning in black and colored salvage material, from
And inner core material and skin-material is met difference of the template different parts to material requirements.Wherein, specific group is added in inner core
The auxiliary agent divided increases the toughness of inner core, so as to improve the intensity of template, and adds the raising inner core template conduct of graphite long fibre
The intensity of skeleton；The anti-flammability that fire proofing improves material is added in skin-material, graphite chopped fiber is added and improves the hard of top layer
Degree and wearability, and in order to improve the dispersiveness of graphite fibre, adding 2,4- toluene-2,4-diisocyanates can further modify
The surface of modified graphite fiber, so as to improve its dispersiveness in the material, makes the quality of plastic formwork homogeneous.Inventor also sends out
It is existing, it is added separately to by two kinds of auxiliary agents of specific proportioning, the dispersiveness between material each component can be made more preferable.
Specific scheme is as follows：
A kind of hollow plastic formwork, it is characterised in that：The hollow plastic formwork is by core and is coated on core surfaces
Surface coating material constitute, it is 200-300 microns of graphite long fibre, the Surface coating material that the core, which includes length,
Including the graphite chopped fiber that length is 10-50 microns；The hollow plastic formwork include epipleural, lower side panel, and it is described on
Reinforcer between side plate and lower side panel, the reinforcer includes multiple first reinforcers and the second reinforcer, multiple described the
One reinforcer be arranged in parallel between the side plate up and down, the distance between described adjacent first reinforcer and the side plate up and down
The distance between it is of substantially equal；Second reinforcer is arranged between first reinforcer.
Further, on the section perpendicular to the first reinforcer bearing of trend, second reinforcer is in " X " type
Be arranged between first reinforcer, two ends up and down of the left and right sides of second reinforcer respectively with its both sides
First reinforcer is connected with the connecting portion of the side plate up and down；The thickness of second reinforcer：First reinforcer
Thickness=1:1.5-2.
Further, second reinforcer includes longitudinal direction portion and perpendicular transverse part, perpendicular to institute
On the section for stating the first reinforcer bearing of trend, second reinforcer is arranged between first reinforcer in "+" type, institute
The longitudinal portion for stating the second reinforcer connects the epipleural and lower side panel, and the transverse part of second reinforcer connects its both sides
First reinforcer.
Further, second reinforcer includes two longitudinal directions portion and two perpendicular transverse parts, vertical
In on the section of the first reinforcer bearing of trend, second reinforcer in " # " type be arranged at first reinforcer it
Between, longitudinal portion of second reinforcer connects the epipleural and lower side panel, and the transverse part of second reinforcer connects it
First reinforcer of both sides.
Further, on the section perpendicular to the first reinforcer bearing of trend, second reinforcer is in certain
Angle is arranged between first reinforcer, two ends up and down of second reinforcer respectively with the side plate up and down
Connecting portion is connected, the angle of second reinforcer and the upper end between 50-80 degree,；The thickness of second reinforcer
Degree：Thickness=0.8-0.9 of first reinforcer:1.Further, the angle is 60 degree.
Further, the core includes the first auxiliary agent and the second auxiliary agent；The covering material includes fire proofing, the 3rd
Auxiliary agent and the 4th auxiliary agent：
The quality group of first auxiliary agent turns into：
Wherein ethylene propylene diene rubber-maleic anhydride grafts：PP-MAH graft=1
The quality group of second auxiliary agent turns into：
2,4- toluene-2,4-diisocyanate 5-15
Length is 200-300 microns of graphite long fibre 50-150；
The quality group of 3rd auxiliary agent turns into：
4,4'- BMI diphenyl-methanes 2-5
Calcium stearate 15-20
Silane coupler 20-30
The quality group of 4th auxiliary agent turns into：
2,4- toluene-2,4-diisocyanate 10-30
Length is 10-50 microns of graphite chopped fiber 160-300.
A kind of method for preparing above-mentioned template, it is characterised in that methods described is coextruded one-step shaping equipment using two-shipper,
Its described equipment include main double screw extruder, secondary double screw extruder, main frame net-changing device, slave net-changing device, main frame Melt Pump,
Distributor, mould, shaping platform, first gear formula draw-gear, cooling bracket, second gear formula draw-gear, ripsaw is crosscutting
Saw platform, delivery platform；Wherein main double screw extruder includes main hopper, the first auxiliary agent hopper and the second auxiliary agent hopper；It is secondary double
Screw extruder includes secondary hopper, the 3rd auxiliary agent hopper and the 4th auxiliary agent hopper；Methods described uses black and colored recovery
Polypropylene material is transported to entering for the main double screw extruder as raw material, the recovery polypropylene material of black by main hopper
Material mouth, the first auxiliary agent and the second auxiliary agent are transported to the main twin-screw by the first auxiliary agent hopper and the second auxiliary agent hopper respectively and squeezed
Go out the first auxiliary agent charging aperture and the second auxiliary agent charging aperture of machine, then pushed away melt by the screw rod of the main double screw extruder
The main frame net-changing device is entered, then enters the distributor by the main frame Melt Pump；Colored recovery polypropylene material and
Fire proofing is transported to the charging aperture of the secondary double screw extruder by secondary hopper, and the 3rd auxiliary agent and the 4th auxiliary agent pass through respectively
3rd auxiliary agent hopper and the 4th auxiliary agent hopper are transported to the 3rd auxiliary agent charging aperture and the 4th auxiliary agent of the secondary double screw extruder
Charging aperture, is then advanced to the slave net-changing device by melt by the screw rod of the secondary double screw extruder, then reaches institute
State distributor；In the distributor, the treated Surface coating material of the secondary double screw extruder is uniformly distributed
The core material surface treated to the main double screw extruder, the material after the distributor processes enters mould
Tool, then shapes to shaping platform, is transferred to cooling bracket cooling through first gear formula draw-gear, then draw through second gear formula
Device is transferred to ripsaw rip cutting, then crosscutting through cross-cut saw platform, finally removes the equipment by delivery platform, so as to complete modeling
Expect the shaping of template.
Further, the double screw extruder is divided into five between the head outlet of the charging aperture and the extruder
Section, the charging aperture is located at the first bringing-up section, and the head outlet of the extruder is located at the 5th bringing-up section, described five sections of temperature
Outlet from the charging aperture to the extruder gradually rises, wherein the temperature is distributed as：First bringing-up section temperature=
Salvage material fusing point-(+10 DEG C of the fusing point)；Second bringing-up section temperature=(+5 DEG C of the fusing point)-(described fusing point+15
℃)；3rd bringing-up section temperature=(+10 DEG C of the fusing point)-(+20 DEG C of the fusing point)；4th bringing-up section temperature=(described molten
+ 15 DEG C of point)-(+25 DEG C of the fusing point)；5th bringing-up section temperature=(+20 DEG C of the fusing point)-(+30 DEG C of the fusing point)；
The first auxiliary agent charging aperture and the second auxiliary agent charging aperture are separately positioned on the second of the main double screw extruder
Bringing-up section and the 3rd bringing-up section；
The 3rd auxiliary agent charging aperture and the 4th auxiliary agent charging aperture are separately positioned on the second of the secondary double screw extruder
Bringing-up section and the 3rd bringing-up section.
Further, wherein the black reclaims the quality of polypropylene material, first auxiliary agent and second auxiliary agent
Than for：Black reclaims polypropylene material：First auxiliary agent：Second auxiliary agent=100:1-5:10-30；The colored recovery polypropylene material
Expect, the fire proofing, the mass ratio of the 3rd auxiliary agent and the 4th auxiliary agent is：Colour reclaims polypropylene material：Fire proofing：
3rd auxiliary agent：4th auxiliary agent=100:20-60:1-5:10-30.
The present invention has the advantages that：
Core is used as by black salvage material, colored salvage material reduces cost as Surface coating material, recepted the caloric
It is small, it is unlikely to deform, assembly is convenient；
Only contain fire proofing in the covering material of top layer, it is ensured that while mechanical strength, realize the fire-retardant of template
Property；
By setting the first reinforcer and the second reinforcer between biside plate, so that while template strength is ensured,
The use of material has been saved, cost is reduced；
Melt is advanced to by net-changing device by Twin screw extruder, then by Melt Pump to mould, eliminates the step of granulation
Suddenly, one-step shaping obtains template, simplifies technique, reduces production cost；Added in the different temperatures section of Twin screw extruder
Different auxiliary agent so that the degree of scatter of each component is maximized, produces obtained properties of product stable homogeneous；
Be added separately to by two kinds of auxiliary agents of specific proportioning in black and colored salvage material so that inner core material and
Surfacing meets difference of the template different parts to material requirements；
The auxiliary agent of specific components is added in first auxiliary agent increases the toughness of inner core, and the second auxiliary agent adds graphite long fibre
Inner core template is improved as the intensity of skeleton；
Hardness and wearability that graphite chopped fiber improves top layer are added in 4th auxiliary agent；
2,4- toluene-2,4-diisocyanates are added, the surface of graphite fibre can be modified, so as to further improve stone
The dispersiveness of black fiber in the melt.
The template of the present invention, with good mechanical performance, meets the requirement of construction material, and the method work of the present invention
Skill is simple, with low cost, it is easy to mass produce.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention 1
Fig. 2 is the schematic diagram of the embodiment of the present invention 2
Fig. 3 is the schematic diagram of the embodiment of the present invention 3
Fig. 4 is the schematic diagram of the embodiment of the present invention 4
Embodiment
The present invention will be described in more detail below by specific embodiment, but protection scope of the present invention not by
It is limited to embodiment.
As shown in figure 1, the hollow plastic formwork includes epipleural 1, lower side panel 2, and the epipleural 1 and lower side panel
Reinforcer between 2, the reinforcer includes multiple reinforcers 4 of first reinforcer 3 and second, multiple first reinforcers 3
It is be arranged in parallel between the side plate up and down, between the distance between described adjacent first reinforcer 3 and the side plate up and down
Apart from of substantially equal；Second reinforcer 4 is arranged between first reinforcer；The hollow plastic formwork is by core 5
And be coated on the Surface coating materials 6 of core surfaces and constitute；Second reinforcer 4 is arranged at described first in " X " type and added
Between strong part, two ends up and down of the left and right sides of second reinforcer respectively with first reinforcer of its both sides with
The connecting portion connection of the side plate up and down
As shown in Figure 2,3, 4, second reinforcer is arranged between first reinforcer at an angle, and described
Connecting portion of two ends up and down of two reinforcers respectively with the side plate up and down is connected；Second reinforcer is set in "+" type
It is placed between first reinforcer, longitudinal portion of second reinforcer connects the epipleural and lower side panel, described second
The transverse part of reinforcer connects first reinforcer of its both sides；Second reinforcer is arranged at described first in " # " type
Between reinforcer, longitudinal portion of second reinforcer connects the epipleural and lower side panel, the transverse direction of second reinforcer
Portion connects first reinforcer of its both sides.
Embodiment 1
Matched by following mass percent, black reclaims polypropylene material：Colour reclaims polypropylene material=1:1,
Black reclaims polypropylene material：First auxiliary agent：Second auxiliary agent=100:1:10；Colour reclaims polypropylene material：Nanometer hydroxide
Aluminium：3rd auxiliary agent：4th auxiliary agent=100：50:1:10, wherein the quality group in the first auxiliary agent turns into, 4,4'- bismaleimides
Amine diphenyl-methane：Ethylene propylene diene rubber-maleic anhydride grafts：PP-MAH graft：Calcium stearate：Silane is even
Join agent=2:3:3:15:20；The quality group of second auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length is 200 microns of graphite
Long fibre=1:10；The quality group of 3rd auxiliary agent turns into, 4,4'- BMI diphenyl-methanes：Calcium stearate：It is silane coupled
Agent=2:15:20；The quality group of 4th auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length is 10 microns of graphite chopped fiber
=1:16.
The temperature of five bringing-up sections of the Twin screw extruder is respectively 165 DEG C, 170 DEG C, 175 DEG C, 180 DEG C, 185
DEG C, main hopper is arranged on the first bringing-up section, and two auxiliary agent hoppers are separately positioned on the second bringing-up section and the 3rd bringing-up section, described to squeeze
The head outlet for going out machine is located at the 5th bringing-up section, and extruder screw rotating speed is 260r/min；
The recovery polypropylene material of black is transported to the charging aperture of the main double screw extruder by main hopper, and first helps
Agent and the second auxiliary agent are transported to the first of the main double screw extruder by the first auxiliary agent hopper and the second auxiliary agent hopper respectively
Auxiliary agent charging aperture and the second auxiliary agent charging aperture, are then advanced to the master by the screw rod of the main double screw extruder by melt
Machine net-changing device, then enter the distributor by the main frame Melt Pump；Colored recovery polypropylene material is defeated by secondary hopper
The charging aperture of the secondary double screw extruder is sent to, the 3rd auxiliary agent and the 4th auxiliary agent are helped by the 3rd auxiliary agent hopper and the 4th respectively
Agent hopper is transported to the 3rd auxiliary agent charging aperture and the 4th auxiliary agent charging aperture of the secondary double screw extruder, then passes through the pair
Melt is advanced to the slave net-changing device by the screw rod of double screw extruder, then reaches the distributor；In the distributor
In, the treated material of the secondary double screw extruder is evenly dispersed to the treated material list of the main double screw extruder
Face, the material after the distributor processes enters mould, is then shaped to shaping platform, is transferred through first gear formula draw-gear
Ripsaw rip cutting is transferred to cooling bracket cooling, then through second gear formula draw-gear, then it is crosscutting through cross-cut saw platform, finally
The equipment is removed by delivery platform, so as to complete the shaping of plastic formwork, the plastic formwork shown in Fig. 1 is made.
Embodiment 2
Matched by following mass percent, black reclaims polypropylene material：Colour reclaims polypropylene material=1:1,
Black reclaims polypropylene material：First auxiliary agent：Second auxiliary agent=100:5:30；Colour reclaims polypropylene material：Nanometer hydroxide
Magnesium：3rd auxiliary agent：4th auxiliary agent=100：50:5:30, wherein the quality group in the first auxiliary agent turns into, 4,4'- bismaleimides
Amine diphenyl-methane：Ethylene propylene diene rubber-maleic anhydride grafts：PP-MAH graft：Calcium stearate：Silane is even
Join agent=1:2:2:4:6；The quality group of second auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length is long for 300 microns of graphite
Fiber=1:10；The quality group of 3rd auxiliary agent turns into, 4,4'- BMI diphenyl-methanes：Calcium stearate：Silane coupler
=5:20:30；The quality group of 4th auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length for 50 microns graphite chopped fiber=
1:10, other techniques are same as Example 1, and the plastic formwork shown in Fig. 2 is made.
Embodiment 3
Matched by following mass percent, black reclaims polypropylene material：Colour reclaims polypropylene material=1:1,
Black reclaims polypropylene material：First auxiliary agent：Second auxiliary agent=100:3:20；Colour reclaims polypropylene material：Phosphate：3rd
Auxiliary agent：4th auxiliary agent=100:30:3:20, wherein the quality group in the first auxiliary agent turns into, 4,4'- BMI hexichol first
Alkane：Ethylene propylene diene rubber-maleic anhydride grafts：PP-MAH graft：Calcium stearate：Silane coupler=1:
2:2:5:10；The quality group of second auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length for 200 microns graphite long fibre=
1:8；The quality group of 3rd auxiliary agent turns into, 4,4'- BMI diphenyl-methanes：Calcium stearate：Silane coupler=1:5:
10；The quality group of 4th auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length is 30 microns of graphite chopped fiber=1:8, other
Technique is same as Example 1, and the plastic formwork shown in Fig. 3 is made.
Embodiment 4
Matched by following mass percent, black reclaims polypropylene material：Colour reclaims polypropylene material=1:1,
Black reclaims polypropylene material：First auxiliary agent：Second auxiliary agent=100:5:20；Colour reclaims polypropylene material：APP：The
Three auxiliary agents：4th auxiliary agent=100:25:5:20, wherein the quality group in the first auxiliary agent turns into, 4,4'- BMI hexichol
Methane：Ethylene propylene diene rubber-maleic anhydride grafts：PP-MAH graft：Calcium stearate：Silane coupler=
1:2:2:4:6；The quality group of second auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length for 300 microns graphite long fibre=
1:10；The quality group of 3rd auxiliary agent turns into, 4,4'- BMI diphenyl-methanes：Calcium stearate：Silane coupler=5:
20:30；The quality group of 4th auxiliary agent turns into, 2,4- toluene-2,4-diisocyanates：Length is 50 microns of graphite chopped fiber=1:10,
Other techniques are same as Example 1, and the plastic formwork shown in Fig. 4 is made.
Comparative example 1
The black bought on the market reclaims polypropylene material and prepares plastic formwork.
Table 1
In table 1, the product that the present invention is provided obtains very big in tensile strength, bending strength and bending modulus
Raising, toughness of products of the invention is good, and intensity is high, is unlikely to deform, and board cost of the present invention is cheap, it is adaptable to various to build
Build sheet material.
Although present disclosure is discussed in detail by above preferred embodiment, but it would be recognized that above-mentioned
Description be not considered as limitation of the present invention.
Claims (10)
1. a kind of hollow plastic formwork, it is characterised in that the hollow plastic formwork is by core and is coated on core surfaces
Surface coating material is constituted, and the core includes the graphite long fibre that length is 200-300 microns, the Surface coating material bag
Include the graphite chopped fiber that length is 10-50 microns；The hollow plastic formwork includes epipleural, lower side panel, and the upside
Reinforcer between plate and lower side panel, the reinforcer includes multiple first reinforcers and the second reinforcer, multiple described first
Reinforcer be arranged in parallel between side plate up and down described, the distance between described adjacent first reinforcer and the side plate up and down it
Between distance it is of substantially equal；Second reinforcer is arranged between first reinforcer.
2. template as claimed in claim 1, on the section perpendicular to the first reinforcer bearing of trend, described second adds
Strong part is arranged between first reinforcer in " X " type, two ends part up and down of the left and right sides of second reinforcer
It is not connected with first reinforcer of its both sides with the connecting portion of the side plate up and down；The thickness of second reinforcer：Institute
State thickness=1 of the first reinforcer:1.5-2.
3. template as claimed in claim 1, second reinforcer includes longitudinal direction portion and perpendicular transverse part,
On the section perpendicular to the first reinforcer bearing of trend, second reinforcer is arranged at described first in "+" type and added
Between strong part, longitudinal portion of second reinforcer connects the epipleural and lower side panel, the transverse part of second reinforcer
Connect first reinforcer of its both sides.
4. template as claimed in claim 1, second reinforcer includes two longitudinal directions portion and two perpendicular horizontal strokes
To portion, on the section perpendicular to the first reinforcer bearing of trend, second reinforcer is arranged at described in " # " type
Between one reinforcer, longitudinal portion of second reinforcer connects the epipleural and lower side panel, the horizontal stroke of second reinforcer
First reinforcer of its both sides is connected to portion.
5. template as claimed in claim 1, on the section perpendicular to the first reinforcer bearing of trend, described second adds
Strong part is arranged between first reinforcer at an angle, two ends up and down of second reinforcer respectively with it is described
The connecting portion connection of side plate up and down, the angle of second reinforcer and the upper end between 50-80 degree,；Described second
The thickness of reinforcer：Thickness=0.8-0.9 of first reinforcer:1.
6. template as claimed in claim 5, the angle is 60 degree.
7. template as claimed in claim 1, the core includes the first auxiliary agent and the second auxiliary agent；The covering material includes resistance
Combustible material, the 3rd auxiliary agent and the 4th auxiliary agent：
The quality group of first auxiliary agent turns into：
Wherein ethylene propylene diene rubber-maleic anhydride grafts：The matter of second auxiliary agent described in PP-MAH graft=1
Measuring composition is：
2,4- toluene-2,4-diisocyanate 5-15
Length is 200-300 microns of graphite long fibre 50-150；
The quality group of 3rd auxiliary agent turns into：
4,4'- BMI diphenyl-methanes 2-5
Calcium stearate 15-20
Silane coupler 20-30
The quality group of 4th auxiliary agent turns into：
2,4- toluene-2,4-diisocyanate 10-30
Length is 10-50 microns of graphite chopped fiber 160-300.
8. a kind of method for preparing any one of the claim 1-7 templates, it is characterised in that methods described uses two-shipper co-extrusion
Go out one-step shaping equipment, its described equipment includes main double screw extruder, secondary double screw extruder, main frame net-changing device, slave is changed
Wire stitcher, main frame Melt Pump, distributor, mould, shaping platform, first gear formula draw-gear, cooling bracket, the traction of second gear formula
Device, ripsaw, cross-cut saw platform, delivery platform；Wherein main double screw extruder includes main hopper, the first auxiliary agent hopper and the
Two auxiliary agent hoppers；Secondary double screw extruder includes secondary hopper, the 3rd auxiliary agent hopper and the 4th auxiliary agent hopper；Methods described uses black
Color and colored recovery polypropylene material are as raw material, and the recovery polypropylene material of black is transported to the master couple by main hopper
The charging aperture of screw extruder, the first auxiliary agent and the second auxiliary agent are transported to by the first auxiliary agent hopper and the second auxiliary agent hopper respectively
The the first auxiliary agent charging aperture and the second auxiliary agent charging aperture of the main double screw extruder, then pass through the main double screw extruder
Screw rod melt is advanced to the main frame net-changing device, then enter the distributor by the main frame Melt Pump；Colored returns
Pinching propylene material and fire proofing are transported to the charging aperture of the secondary double screw extruder, the 3rd auxiliary agent and by secondary hopper
The 3rd auxiliary agent that four auxiliary agents are transported to the secondary double screw extruder by the 3rd auxiliary agent hopper and the 4th auxiliary agent hopper respectively enters
Material mouth and the 4th auxiliary agent charging aperture, are then advanced to the slave draping by the screw rod of the secondary double screw extruder by melt
Device, then reaches the distributor；In the distributor, the treated Surface coating material of the secondary double screw extruder
Material is evenly dispersed to the treated core material surface of the main double screw extruder, after the distributor processes
Material enters mould, is then shaped to shaping platform, and cooling bracket cooling is transferred to through first gear formula draw-gear, then through second
Gear type draw-gear is transferred to ripsaw rip cutting, then crosscutting through cross-cut saw platform, finally removes the equipment by delivery platform,
So as to complete the shaping of plastic formwork.
9. method as claimed in claim 8, the double screw extruder goes out in the head of the charging aperture and the extruder
It is divided into five sections between mouthful, the charging aperture is located at the first bringing-up section, the head outlet of the extruder is located at the 5th bringing-up section, institute
The temperature for stating five sections gradually rises from the charging aperture to the outlet of the extruder, wherein the temperature is distributed as：First
Bringing-up section temperature=salvage material fusing point-(+10 DEG C of the fusing point)；Second bringing-up section temperature=(+5 DEG C of the fusing point)-(institute
State+15 DEG C of fusing point)；3rd bringing-up section temperature=(+10 DEG C of the fusing point)-(+20 DEG C of the fusing point)；4th bringing-up section temperature
=(+15 DEG C of the fusing point)-(+25 DEG C of the fusing point)；5th bringing-up section temperature=(+20 DEG C of the fusing point)-(described fusing point
+30℃)；
The first auxiliary agent charging aperture and the second auxiliary agent charging aperture are separately positioned on the second heating of the main double screw extruder
Section and the 3rd bringing-up section；
The 3rd auxiliary agent charging aperture and the 4th auxiliary agent charging aperture are separately positioned on the second heating of the secondary double screw extruder
Section and the 3rd bringing-up section.
10. method as claimed in claim 8, wherein the black reclaims polypropylene material, first auxiliary agent and described the
The mass ratio of two auxiliary agents is：Black reclaims polypropylene material：First auxiliary agent：Second auxiliary agent=100:1-5:10-30；The colour
Polypropylene material, the fire proofing are reclaimed, the mass ratio of the 3rd auxiliary agent and the 4th auxiliary agent is：Colour reclaims polypropylene material
Material：Fire proofing：3rd auxiliary agent：4th auxiliary agent=100:20-60:1-5:10-30.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329582A (en) * | 2017-12-08 | 2018-07-27 | 长安大学 | A kind of composite high-strength plastic formwork and preparation method thereof |
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