CN109735023A - A kind of PVC modified hard composite material and Preparation equipment - Google Patents
A kind of PVC modified hard composite material and Preparation equipment Download PDFInfo
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- CN109735023A CN109735023A CN201910024677.1A CN201910024677A CN109735023A CN 109735023 A CN109735023 A CN 109735023A CN 201910024677 A CN201910024677 A CN 201910024677A CN 109735023 A CN109735023 A CN 109735023A
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Abstract
The invention discloses a kind of PVC modified hard composite materials, including PVC polyvinyl chloride SH-800；Heavy activated Calcium carbonate；The above filler material of 100 mesh；Compound stabilizer；Foaming control agent ZB730；White hair infusion HH-JS；Yellow blowing agent AC 4000；BASF oxidized polyethylene wax OA-6；PE wax；Glass fibre alkali-free；Silane coupling agent；A kind of PVC modified hard composite material Preparation equipment, including extruder, mouth mold at outlet of extruder is provided with cooler, workpiece in cooler enters cutter device under the dragging of traction device, cutter device end is provided with collection table, the traction device includes rack, longitudinally disposed cylinder is provided in the rack, cylinder movable end is fixed with top cover, rack is provided with motor, motor is rotated by transmission belt drive sprocket, and sprocket wheel is driven each other by chain, the coaxial roll rotation of chain wheel drive；The present invention improves fire-retardant, acid and alkali-resistance, resistance to compression, shock resistance, fatigue resistance and Applicable temperature range in implementing.
Description
Technical field
The present invention relates to composite material and Preparation equipment fields, and in particular to a kind of PVC modified hard composite material with
And Preparation equipment.
Background technique
Polyvinyl chloride, English abbreviation PVCPolyvinyl chloride), it is vinyl chloride monomer vinyl chloride
Monomer, abbreviation VCM is in initiators such as peroxide, azo-compounds；Or Raolical polymerizable is pressed under light, heat effect
The polymer that mechanism is polymerized.Ryuron and vinyl chloride copolymer system are referred to as vinyl chloride resin.PVC is in the world
The maximum general-purpose plastics of yield, it is very widely used.In construction material, industrial product, daily necessities, flooring laminate, floor tile, artificial
Leather, tubing, wire and cable, packaging film, bottle, foamed material, sealing material, fiber etc. are widely used.
Common PVC foaming plate also has sound insulation, heat-insulated, thermal-insulating waterproof, fire-retardant, acid and alkali-resistance, Anti-moth-eating, light damping
Characteristic；Applicable temperature: -50 degrees Celsius -70 degrees centigrade.The disadvantage is that: Applicable temperature is at 70 degrees Celsius or less；Resistance to compression, shock resistance
Intensity is low, and acid and alkali-resistance is low, and elasticity modulus is low, and nail-holding ability is low；It can be only applied to car, railway carriage ceiling, cabinet sandwich layer, inside
Decoration, ceiling board, screen printing, computer lettering, advertisement mark, panel, mark plate photograph album.
Summary of the invention
It is an object of the invention to overcome the above-mentioned problems in the prior art, it is compound to provide a kind of PVC modified hard
Material and Preparation equipment improve fire-retardant, acid and alkali-resistance, resistance to compression, shock resistance, fatigue resistance and Applicable temperature range.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions:
A kind of PVC modified hard composite material, including PVC polyvinyl chloride SH-800；Heavy activated Calcium carbonate；It more than 100 mesh fills out
Charge；Compound stabilizer；Foaming control agent ZB730；White hair infusion HH-JS；Yellow blowing agent AC 4000；BASF oxidized polyethylene wax
OA-6；PE wax；Glass fibre alkali-free；Silane coupling agent.
Further, it is formed according to following parts by weight: PVC polyvinyl chloride SH-800,50 parts；Heavy activated Calcium carbonate, 50
Part；The above filler material of 100 mesh, 70 parts；Compound stabilizer, 3.2 parts；Foaming control agent ZB730,7 parts；White hair infusion HH-JS, 1
Part；4000,0.35 part of yellow blowing agent AC；BASF oxidized polyethylene wax OA-6,0.5 part；PE wax, 0.4 part；Glass fibre alkali-free, 8
Part；Silane coupling agent, 0.3 part.
It further, further include the haloflex CPE135A of 0.5 parts by weight.
Further, it is formed according to following parts by weight: PVC polyvinyl chloride SH-800,75 parts；Heavy activated Calcium carbonate, 65
Part；The above filler material of 100 mesh, 50 parts；Compound stabilizer, 3.8 parts；Foaming control agent ZB730,10 parts；White hair infusion HH-JS, 1
Part；4000,0.4 part of yellow blowing agent AC；BASF oxidized polyethylene wax OA-6,0.5 part；PE wax, 0.4 part；Haloflex
CPE135A, 0.5 part；Glass fibre alkali-free, 8 parts；Silane coupling agent, 0.3 part.
It further, further include the brightening agent of 0.4 parts by weight.
A kind of PVC modified hard composite material Preparation equipment, including extruder, the mouth mold at outlet of extruder are provided with cold
But device, the workpiece in cooler enter cutter device under the dragging of traction device, and cutter device end is provided with collection table.
Preferably, the extruder includes hopper, and feed hopper bottom enters machine barrel by capstan, transmission spiral shell is provided in machine barrel
Bar, heat block and temperature controller, machine barrel end are provided with mouth mold.
Preferably, the traction device includes rack, and longitudinally disposed cylinder, cylinder movable end are provided in the rack
It is fixed with top cover, rack is provided with motor, and motor is rotated by transmission belt drive sprocket, and sprocket wheel is passed each other by chain
It is dynamic, the coaxial roll rotation of chain wheel drive.
Preferably, the transmission belt between the motor and drive sprocket has abutted tensioning wheel.
Preferably, the top cover side is provided with the hinge being in rolling contact with frame inner wall.
Income effect of the invention is:
Improve fire-retardant, acid and alkali-resistance, resistance to compression, shock resistance, fatigue resistance and Applicable temperature range.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the schematic diagram of PVC modified hard composite material Preparation equipment of the present invention；
Fig. 2 is the schematic diagram of extruder of the present invention；
Fig. 3 is the schematic diagram of traction device of the present invention；
Fig. 4 is the schematic diagram of limited free foaming technique of the present invention；
Fig. 5 is the schematic diagram of head inner flow passage of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
It is as shown in Figs. 1-5, of the invention are as follows:
A kind of PVC modified hard composite material, including PVC polyvinyl chloride SH-800；Heavy activated Calcium carbonate；It more than 100 mesh fills out
Charge；Compound stabilizer；Foaming control agent ZB730；White hair infusion HH-JS；Yellow blowing agent AC 4000；BASF oxidized polyethylene wax
OA-6；PE wax；Glass fibre alkali-free；Silane coupling agent.
Preferably, it is formed according to following parts by weight: PVC polyvinyl chloride SH-800,50 parts；Heavy activated Calcium carbonate, 50 parts；
The above filler material of 100 mesh, 70 parts；Compound stabilizer, 3.2 parts；Foaming control agent ZB730,7 parts；White hair infusion HH-JS, 1 part；
4000,0.35 part of yellow blowing agent AC；BASF oxidized polyethylene wax OA-6,0.5 part；PE wax, 0.4 part；Glass fibre alkali-free, 8 parts；
Silane coupling agent, 0.3 part.
It preferably, further include the haloflex CPE135A of 0.5 parts by weight.
Preferably, it is formed according to following parts by weight: PVC polyvinyl chloride SH-800,75 parts；Heavy activated Calcium carbonate, 65 parts；
The above filler material of 100 mesh, 50 parts；Compound stabilizer, 3.8 parts；Foaming control agent ZB730,10 parts；White hair infusion HH-JS, 1 part；
4000,0.4 part of yellow blowing agent AC；BASF oxidized polyethylene wax OA-6,0.5 part；PE wax, 0.4 part；Haloflex CPE135A,
0.5 part；Glass fibre alkali-free, 8 parts；Silane coupling agent, 0.3 part.
It preferably, further include the brightening agent of 0.4 parts by weight.
The mouth mold 2 of a kind of PVC modified hard composite material Preparation equipment, including extruder 1,1 exit of extruder is arranged
There is cooler 3, the workpiece in cooler 3 enters cutter device 5 under the dragging of traction device 4, and 5 end of cutter device is provided with
Collection table 6
Further, the extruder 1 includes hopper 11, and 11 bottom of hopper enters machine barrel 13 by capstan 12, sets in machine barrel 13
It is equipped with conveyor screw 14, heat block 15 and temperature controller 16,13 end of machine barrel is provided with mouth mold 2.
Further, the traction device 4 includes rack 41, is provided with longitudinally disposed cylinder 42 in the rack 41,
42 movable end of cylinder is fixed with top cover 43, and rack 41 is provided with motor 44, and motor 44 passes through 45 turns of transmission belt drive sprocket
Dynamic, sprocket wheel 45 is driven each other by chain 46, and sprocket wheel 45 drives coaxial roll 47 to rotate.
Further, the transmission belt between the motor 44 and drive sprocket 45 has abutted tensioning wheel 48.
Further, 43 side of top cover is provided with the hinge 49 being in rolling contact with 41 inner wall of rack.
One concrete application of the present embodiment are as follows:
Core component is extruder, mold, cooling and shaping device, traction cutter device and control system.Extruder system uses
SJZS-80-156;The incorgruous conical-double -helical rod extruder of SJZS-80-173 type, its machine barrel, screw rod, power drive system design symbol
Conjunction process characteristic, extrusion output is big, material cutting is uniform, and extrusion efficiency is high；Mold uses foam plate clothes special posture runner
Structure mold can adjust die lip, make material uniform in foaming and adapt to the plate of different-thickness；Cooling and shaping system uses 5 groups of pressures
Plank frame, baric systerm control and oil hydraulic system control；Keep board dimension precision controlling easy；The pipeline of design of Cooling System
Keep plate cooling more uniform and is formed quick；Traction diced system takes pulley type to combine dragger, adjusts tractive force measurement
Section is easy；Roller tractor and wide cut cut electric appliance synchronously control, keep plate notch straight.Production line is completely joined using extruder
Wisdom can control, and with PLC system for main control means, utilize the sensors such as temperature and pressure and high-accuracy pneumatic control system
System joint realizes the closed loop feedback control of the parameters such as pressure, temperature, realizes the control of procedure parameter precision；
PVC modified hard foam material production line by pretreatment unit, extruder, mold, cooling and shaping device, lead
Draw cutter device and collection device composition, as shown in Figure 1.Pretreatment unit is by screen analysis device, mixing arrangement and drying device etc.
Composition；Extruder is by extrusion system (screw rod, machine barrel) etc., transmission system (motor and retarder) etc., charging system and heating
Cooling system is formed；Basic size shape needed for mold gives product；Cooling and shaping device will be from the polymerization of head extrusion
Object is quickly sufficiently cool solidification, so that the dimensionally stable of product is got off, and carry out finishing to it, obtain sectional dimension it is accurate with
The extrudate of appearance light；
Traction device is used to equably draw product, and extrusion process is enable continuously and stably to carry out；Cutter device will be squeezed out continuously
Product cut down by required length.The plate that last collection table is cut off the hard panel under cutting in cutting
It is all distributed in air, pollutes bad border and wasted raw material in a manner of powder.So device for inhaling powdery substances should be equipped in diced system,
To recycle the powder cut down.Device for inhaling powdery substances draws powder as power using the negative pressure that motor drives a centrifugal fan to generate
Then end focuses on, centrifugal fan and powder absorbing pipe road are arranged in other than machine, and the powder of recycling can be in heap elsewhere
It puts, is allowed to convenient transportation.Synchronous cross diced system needs the feeding of cast-cutting saw transverse cuts and longitudinal direction to follow movement.
Since the mixed milling function of counter rotation twin screw extruder is weak, it is mixed, cold that ingredient, heat are set before extrusion
Compounding process.This technology carries out mixing using SRL-Z series of heat cold mixing unit.The compounding process of material is particularly significant, material
The superiority and inferiority of mixing quality directly affects extrusion molding process and products appearance and inherent quality.Material mixing temperature is excessively high to be divided in advance
Solution, the too low mixing of material mixing temperature are bad.Therefore material mixed processes density domination is the key that hybrid technique.Production feeds intake
Sequentially are as follows:
Calcium carbonate 25KG → (alkali-free) glass fibre 1KG → stable composition 3.2KG → PVC25KG → (alkali-free) glass fibre 1KG
→ calcium carbonate 25KG → (alkali-free) glass fibre 1KG → processing aid → PVC25KG → (alkali-free) glass fibre 1KG → foaming tune
Save agent 6KG → reclaimed materials (milling 100 mesh of shape) 20KG → (alkali-free) glass fibre → 1KG → reclaimed materials (milling 100 mesh of shape) one
Until having delivered directly (material input amount is generally heat mixes pot dischargeable capacity 65%).
Upper continuous material is poured into elevating hopper in proportion, high speed mixer mixed at high speed is delivered to by screw conveyor, to object
When material temperature degree reaches 110 DEG C, starting cold mixing pot motor opens high speed mixer baiting valve, material is all drained to cold mixing pot,
Closing high-speed batch mixer and baiting valve；When temperature of charge is cooled to 50 DEG C or less, open cold mixing pot baiting valve, by material put to
Material is delivered to extruder hopper by screw conveyor, squeezed out for extruder by conveyer hopper.
PVC modified hard foam extrusion process:
1) it extrusion temperature: for the hard PVC foam product that acquisition abscess dense uniform, surfacing are bright and clean, is producing
In answer the temperature in each section of strict control.If machine barrel and extruder temperature are excessively high, material is easy foaming in advance and solution is caused to rupture,
Plate surface is coarse；If temperature is too low, material plasticizing is incomplete, plate surface out-of-flatness；The temperature of transition body and die lip is answered
Lower than extrusion temperature, but temperature is too low that solution temperature can be made too low and follow the string and be pulled off, and temperature is excessively high to make solution intensity
It is reduced with elasticity, cell collapse, surface generates cavity blemish.Material squeezes out all by 3 heating, constant temperature and heat preservation processes.
2) heating zone is extruder vent front (i.e. it is disconnected that an area conveys the compression of 2nd area Duan He)；Flat-temperature zone is after exhaust outlet
Portion's (i.e. three area's exhaust sections and four area's metering sections)；Heat preservation zone is mainly made of head, transition body and mouth mold.
Material needs biggish heat in heating zone, area's temperature should set pin it is higher, to meet heat supplement simultaneously
And barrel temperature environment is made to keep stablizing；Flat-temperature zone is more than material due to the interior heat that screw rod generates the shearing of material and calendering
It needs, which should be arranged heating and cooling Double-direction Temperature control device, and the temperature to control machine barrel is kept constant, and guarantee object
Expect normalization and extrusion molding, material has been in complete plastifying state behind flat-temperature zone, and heat has been not present in the area, molten to establish
Body pressure needs to be arranged the outer heat of heating sheet supplement, and trial production discovery is suitble to each of PCV modified hard crust foaming plate material production
Area's temperature: one area of extruder (160 ± 5) DEG C, 2nd area (155 ± 5) DEG C, 3rd area (155 ± 5) DEG C, 4th area (160 ± 5) DEG C, 5th area
(160 ± 5) DEG C, excessive body (150 ± 5) DEG C, one area of mold (160 ± 5) DEG C, 2nd area (155 ± 5) DEG C, 3rd area (155 ± 5) DEG C,
4th area (155 ± 5) DEG C, 6th area (155 ± 5) DEG C, 7th area (160 ± 5) DEG C, survey version (160 ± 5) DEG C, mould at 5th area (155 ± 5) DEG C
Lip (125 ± 5) DEG C, the one area thermostatic control of cooling and shaping device, the cooling control in two, three, four, five areas, each area's cooling temperature of mold
Control is at 15 ~ 40 DEG C.
3) extruded velocity and residence time, production practices show that screw speed is directly proportional to the extrusion yield of plate, with plate
The density of material is inversely proportional, and screw rod turns higher, and extruded velocity is fast, the too fast difficulty for increasing technology controlling and process of Melt temperature rise, but the journey that foams
Uniformly, products surface quality is good for degree；On the contrary, screw speed is too low, extruded velocity is slow, can make the bad grand low production of melt plastic
Efficiency, while keeping plate surface layer coarse close to die lip mouth foaming.In addition board quality is also by material in extruder barrel and mouth mold
The interior residence time is too short, and foaming agent decomposes not enough, and panel density is excessive, and the residence time is too long, is easy the excessive plate mechanics of foaming
Reduced performance, screw speed should be depending on the different process methods of foam, and screw speed and extruded velocity are according to plate
Thickness setting is different, is usually no more than 4mm/min, and sheet extrusion speed is 0.5 ~ 0.6m/min.
4) extrusion pressure, plate foaming success or failure crux be that extruding force controls whether properly, screw speed, melt temperature
And the length and compression ratio of mouth mold inner flow passage all have a significant impact to extrusion pressure.Screw speed increase makes melt extrusion pressure liter
Height can reduce cell diameter and increase number of bubbles, is conducive to foaming process.In addition when material plasticizing is good, mouth mold pressure and
Electric current is all more stable, and when material plasticizing is bad, and mouth mold pressure oscillation improves, and current of electric increases and unstable；Usually
Using the variation of Main motor current and mouth mold pressure as judging that extrusion temperature controls whether foundation appropriate.
5) machine head port mould and cooler-shaper lamps structure
The flow passage structure of machine head port mould directly affects the expansion ratio of product and squeezes out uniformity, influences the quality of product.This
Patent drives examination using clothing and squeezes out handpiece structure, and head inner flow passage is by manifold region, fan section, choked flow area and die lip district's groups at molten
It after body flows into manifold, is evenly distributed in entire fan section by manifold, guarantees that material (melt) stream is in the same direction when entering die lip area
Property, while being the pressure of melt in control mouth mold, setting choked flow area reduces melt pressure, guarantees that material flowing velocity is consistent.Runner
The length design of each section should certain compression requirement guarantee material foaming appropriateness.
When sheet fabrication, since the structure size of cooler-shaper is adjusted to size identical as machine head port mould, therefore skinning
The density and skinning cortex thickness of foaming product, which depend on free foaming, is restricted degree, needs suitably to adjust cooler-shaper and mouth
The distance between mould, the intensity of cooling of the ratio and stock mould of speed and sizing hauling speed.
PVC modified hard foam product is formed using chemical foam blowing agent, and foaming agent decomposes gas with it and exists
It is dissolved in solution before solution extrusion neck ring mold, after extrusion mould-outlet, solution internal pressure, dynamics decline make the gas supersaturation for being dissolved in solution
And occur mutually to separate, it forms a large amount of microvesicle holes and foams, surface layer bubble has little time under the quick refrigeration effect of cooler-shaper
Expansion is just fixed, forms the higher and bright and clean skinning cortex of density on surface, to produce PVC modified hard knot
Skin foaming plate
In aforesaid operations, compare traditional approach, improves fire-retardant, acid and alkali-resistance, resistance to compression, shock resistance, fatigue resistance and is applicable in
Temperature range.
In the description of this specification, the descriptions such as reference term " one embodiment ", " example ", " specific example " mean to tie
Specific features, structure, the material for closing embodiment or example description live feature and are contained at least one embodiment of the present invention
Or in example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.And
And particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples with suitable
Mode combine.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (10)
1. a kind of PVC modified hard composite material, it is characterised in that: including PVC(polyvinyl chloride) SH-800；Heavy active carbonic acid
Calcium；The above filler material of 100 mesh；Compound stabilizer；Foaming control agent (ZB730)；White hair infusion HH-JS；Yellow blowing agent AC 4000；
BASF oxidized polyethylene wax (OA-6)；PE wax；Glass fibre (alkali-free)；Silane coupling agent.
2. a kind of PVC modified hard composite material according to claim 1, it is characterised in that: according to following parts by weight group
At: PVC(polyvinyl chloride) SH-800,50 parts；Heavy activated Calcium carbonate, 50 parts；The above filler material of 100 mesh, 70 parts；Stable composition
Agent, 3.2 parts；Foaming control agent (ZB730), 7 parts；White hair infusion HH-JS, 1 part；4000,0.35 part of yellow blowing agent AC；BASF oxygen
Change polyethylene wax (OA-6), 0.5 part；PE wax, 0.4 part；Glass fibre (alkali-free), 8 parts；Silane coupling agent, 0.3 part.
3. a kind of PVC modified hard composite material according to claim 2, it is characterised in that: further include 0.5 parts by weight
Haloflex (CPE135A).
4. a kind of PVC modified hard composite material according to claim 1, it is characterised in that: according to following parts by weight group
At: PVC(polyvinyl chloride) SH-800,75 parts；Heavy activated Calcium carbonate, 65 parts；The above filler material of 100 mesh, 50 parts；Stable composition
Agent, 3.8 parts；Foaming control agent (ZB730), 10 parts；White hair infusion HH-JS, 1 part；4000,0.4 part of yellow blowing agent AC；BASF oxygen
Change polyethylene wax (OA-6), 0.5 part；PE wax, 0.4 part；Haloflex (CPE135A), 0.5 part；Glass fibre (alkali-free), 8
Part；Silane coupling agent, 0.3 part.
5. a kind of PVC modified hard composite material according to claim 2 or 4, it is characterised in that: further include 0.4 weight
The brightening agent of part.
6. a kind of PVC modified hard composite material Preparation equipment, it is characterised in that: including extruder (1), extruder (1) outlet
The mouth mold (2) at place is provided with cooler (3), and the workpiece in cooler (3) enters cutter device under the dragging of traction device (4)
(5), cutter device (5) end is provided with collection table (6).
7. a kind of PVC modified hard composite material Preparation equipment according to claim 6, it is characterised in that: the extrusion
Machine (1) includes hopper (11), and hopper (11) bottom enters machine barrel (13) by capstan (12), is provided with transmission spiral shell in machine barrel (13)
Bar (14), heat block (15) and temperature controller (16), machine barrel (13) end are provided with mouth mold (2).
8. a kind of PVC modified hard composite material Preparation equipment according to claim 6, it is characterised in that: the traction
Device (4) includes rack (41), is provided with longitudinally disposed cylinder (42) in the rack (41), cylinder (42) movable end is fixed
Have top cover (43), rack (41) is provided with motor (44), and motor (44) is rotated by transmission belt drive sprocket (45), sprocket wheel
(45) it is driven each other by chain (46), sprocket wheel (45) drives coaxial roll (47) rotation.
9. a kind of PVC modified hard composite material Preparation equipment according to claim 8, it is characterised in that: described electronic
Transmission belt between machine (44) and drive sprocket (45) has abutted tensioning wheel (48).
10. a kind of PVC modified hard composite material Preparation equipment according to claim 8, it is characterised in that: the top cover
(43) side is provided with the hinge (49) being in rolling contact with rack (41) inner wall.
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| WO2022121481A1 (en) * | 2020-12-11 | 2022-06-16 | 湖北中烟工业有限责任公司 | Apparatus and method for producing cooling firmware |
| CN115873295A (en) * | 2022-12-13 | 2023-03-31 | 上海英科实业有限公司 | Recycled polystyrene foam section with high nail-holding power and preparation method thereof |
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