CN200991988Y - Thermotropic liquid crystal polymer and thermoplastic plastic composite material preparing device - Google Patents
Thermotropic liquid crystal polymer and thermoplastic plastic composite material preparing device Download PDFInfo
- Publication number
- CN200991988Y CN200991988Y CNU2006201676296U CN200620167629U CN200991988Y CN 200991988 Y CN200991988 Y CN 200991988Y CN U2006201676296 U CNU2006201676296 U CN U2006201676296U CN 200620167629 U CN200620167629 U CN 200620167629U CN 200991988 Y CN200991988 Y CN 200991988Y
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- China
- Prior art keywords
- mixing
- tlcp
- machine
- upper plate
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/39—Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
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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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
-
- 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
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
Abstract
The utility model relates to a preparation device for thermotropic liquid crystal polymer and thermoplastic plastics composites, which is composed of a plastifying machine and a mixing roll. The outlet of the plastifying machine is in connection with a second feed inlet arranged on the mixing section of the mixing roll. The plastifying machine consists of a feed bucket, a machine barrel, a fusant pump, a machine head, a drive controller, a screw, a heater and a frame. The mixing roll which is a dual-rotor continuous mixer consists of an upper plate, a lower plate, a discharge port, a rotor, a feeder and a rotor rotating controller. The mixing section of the middle of the upper plate is provided with the second feed inlet. The device can be easily operated and controlled to achieve the disperse phase of the thermotropic liquid crystal polymer to be distributed evenly in the thermoplastic plastics substrate.
Description
Technical field
The utility model relates to TLCP and thermoplastic In-situ Composite preparation facilities.
Background technology
TLCP (thermotropic liquid crystalline polymers, be called for short TLCP) be a kind of macromolecular material that has the rigid molecule chain and be easy in the flow field, be oriented fibre, it is difficult for lax, even also can keep fiber condition in a long time in molten state, its fusing point is according to its synthetic method and additive different and variant, and the plasticizing melt temperature generally is located at and is higher than melting temperature to the decomposition temperature scope.With TLCP with as the thermoplastic (thermoplastics of matrix, be called for short TP) mixing, TLCP generates fiber on the spot in mixing process, direct and matrix material is formed composite construction, be referred to as original position compound (in situ composite), its composite is called TLCP and thermoplastic In-situ Composite.TLCP can reduce the melt viscosity of composite significantly in composite, thereby can cut down the consumption of energy, and raises the efficiency, and is easy to process.
People such as Baird are at " being equipped with reinforced polypropylene compound material based on TLCP tie rod legal system " (Polymer Composites, 1995,16 (4): 330-345) and the United States Patent (USP) mixed method of reinforced thermoplastics " preparation original position " (US005225488A, 1993) two extrusion moldings are proposed, the first step of its method plastifies TLCP and TP respectively with two extruders, TLCP converges the back with TP and mixes in static mixer, static mixer is a kind of tubulose mixing arrangement, TLCP and TP two strands or multiply melt are being passed through static mixer, stand repeated segmentation, shear, the rotation and reconfigure, thereby realize fully mixing between TLCP and the TP melt, disperse, extrude and be drawn into silk again by head, special-shaped products such as bar.The TLCP melt mainly is subjected to mixing in static mixer, peptizaiton, and becoming fibre is to finish after head is extruded stretching, and this method technical process is long, wayward.When preparation TLCP and polyethylene terephthalate's (being called for short PET) composite, temperature was 290 ℃ when the TLCP melt left first extruder, temperature was 240 ℃ when the PET melt left second extruder, TLCP and PET two melts converge at " T type " connector, in " T type " connector outlet temperature is 220 ℃, and the series of temperature of flowing through again is at 220 ℃ static mixer, and the process of TLCP experience low temperature is long, solidify in advance easily, influence fine quality.
Summary of the invention
The purpose of this utility model provides a kind of device for preparing TLCP and thermoplastic In-situ Composite.This device can make TLCP and TP plastify under the viscous state temperature separately respectively, make TLCP and TP can both obtain good plasticizing, when TLCP and TP initially meet, there is the temperature difference in they, TLCP can in time fully be drawn into fibre, TLCP becomes fine and disperses to be on good terms to be evenly distributed in the TP matrix, helps improving composite property.
The utility model TLCP and thermoplastic plastic composite material preparation facilities are made up of plasticizing machine and mixing roll two parts, and the outlet of plasticizing machine and second charge door that mixing roll is opened in mixing section join.
The plasticizing machine of the utility model device is by constituting with the lower part: loading hopper, machine barrel, Melt Pump, head, drive controller, screw rod, heater and frame; The rear end of machine barrel is connected with the frame upper end, and drive controller is connected with screw drive, and its outlet of top that loading hopper is located at the plasticizing machine communicates with machine barrel, and Melt Pump is located between head and the machine barrel, and heater is located at the periphery of machine barrel.
The mixing roll of the utility model device is a two-rotor continuous mixer, and it is by constituting with the lower part: upper plate, lower plate, discharge port, rotor, feeder and rotor rotation controller; Upper plate and lower plate have three thermals treatment zone to be respectively: feeding section, mixing a section, mixing two sections; Mixing one section of the upper plate middle part is provided with second charge door, and rotor is a birotor.
Be provided with heat insulating mattress between the head lower end of the plasticizing machine of the utility model device and the upper plate of mixing roll, head is fixedlyed connected with upper plate; The frame of plasticizing machine is fixedlyed connected with upper plate.
The utility model device can satisfy carry out under the condition that there is the melt temperature difference in TLCP and TP mixing.The melt temperature of TLCP is set in melting temperature to (for example 320 ℃) between the decomposition temperature scope, and when TLCP and TP met in the mixing chamber of mixing roll, there was temperature difference in both.This temperature difference determines that according to the hot property of TLCP and different TP the fusion TLCPP temperature that has just entered mixing roll is controlled by mixing roll with the TP temperature that it meets by the control of plasticizing machine.This temperature difference can be at 20～120 ℃.Temperature difference is excessive, exists TP by the problem of TLCP calcination easily; Temperature difference is too small, and established TLCP fiber is not easy to keep in composite.Be applicable to the TP raw material for the utility model device: polyethylene terephthalate (PET, 250～260 ℃ of fusing points), polyamide (PA6,210～215 ℃ of fusing points), polyolefin (160～175 ℃ of PP fusing points, 132～135 ℃ of PE fusing points), Merlon (PC, 220～230 ℃ of fusing points) etc.Process is as follows: TP is fusion plastification in mixing roll, TLCP is fusion plastification in the plasticizing machine, the TLCP of fusion plastification is injected in the mixing chamber of mixing roll, the elongational flow of utilizing rotor rotation that melt in the mixing chamber is caused, make the TLCP of injection be drawn into fiber, solidify simultaneously, and be dispersed in and make In-situ Composite among the TP.There is superfusibility in TLCP, and its molten mass still can keep mobile being lower than under the melting temperature." temperature difference blending method " effectively utilized this characteristic of TLCP, even the melting temperature of the TP of second charge door near is lower than the fusing point of TLCP in the mixing chamber of mixing roll, still can realize the even distribution of TLCP decentralized photo in the TP matrix, avoid TP being caused the generation of the adverse effect of calcination because of TLCP temperature height.The process conditions control of the utility model device easily.
Description of drawings
Fig. 1 is the structure chart of the utility model device.
The utility model device as shown in Figure 1.Device mainly is made up of the two large divisions: plasticizing machine and mixing roll.The plasticizing machine is used for the plasticizing of TLCP, mixing roll be used for TP plasticizing and with the mixing of TLCP.The plasticizing machine mainly is made of following components as shown in Figure 1: loading hopper 1-1, machine barrel 1-2, Melt Pump 1-3, head 1-4, drive controller 1-5, screw rod 1-6, heater 1-7 and frame 1-8.Melt Pump 1-3 is a kind of gear pump, and drive controller 1-5, Melt Pump 1-3 all can select approved product for use.The plasticizing machine can be screw as shown in Figure 1, and screw rod 1-6 is the screw rod of band spiral shell rib, the rotation of drive controller 1-5 control screw rod; The plasticizing machine also can be plunger type, and screw rod 1-6 is a plunger; Reciprocating in machine barrel 1-2 by drive controller 1-5 control plunger, and the addition of control TLCP, just need not use Melt Pump 1-3.Reach the setting requirement by heater 1-7 control TLCP melt in the outlet temperature of head 1-4.
The mixing roll that the utility model device adopts is to offer second charge door at the middle part of conventional two-rotor continuous mixer.It is as shown in Figure 1 mainly by constituting with the lower part: upper plate 2-1, lower plate 2-2, discharge port 2-3, rotor 2-4, feeder 2-10, rotor rotation control device 2-9, and rotor is a birotor; Upper plate 2-1, lower plate 2-2 form three thermals treatment zone: feeding section 2-8, mixing one section 2-7, mixing two sections 2-5.The second charge door 2-6 is located at mixing one section 2-7 of upper plate middle part, the head 1-4 of plasticizing machine is fixedlyed connected with upper plate 2-1, the outlet of head 1-4 and the second charge door 2-6 join, be provided with heat insulating mattress 1-9 between the lower end of head 1-4 and upper plate 2-1, heat insulating mattress 1-9 makes the temperature of head 1-4 not be subjected to the temperature effect of upper plate 2-1.The frame 1-8 of plasticizing machine is fixedlyed connected with upper plate 2-1.The structure that can adopt that is connected of machine barrel 1-2 and frame 1-8 as among Fig. 1, the rear end of machine barrel 1-2 is installed in frame 1-8 top, realize between plasticizing machine and the mixing roll be located by connecting fixing.
The operating process of the utility model device is as follows: the temperature of setting heater 1-7, feeding section 2-8, mixing one section 2-7, mixing two sections 2-5, discharge port 2-3 with reference to TLCP and TP melting temperature and the temperature difference thereof.TLCP adds the flow of being controlled TLCP by Melt Pump 1-3 from loading hopper 1-1; By the action of drive controller 1-5 control screw rod 1-6, heater 1-7 makes the abundant fusion plastification of TLCP; Rotation by rotor rotation control device 2-9 control rotor 2-4, feeder 2-10 control TP feeding quantity, the TLCP melt is injected into the mixing chamber of mixing roll from the second charge door 2-6 through head 1-4 outlet, by the mixing effect of rotor 2-4 the TLCP melt is evenly distributed in the TP matrix.The composite of TLCP and TP is discharged from discharge port 2-3.Adopt conventional method to carry out extruding pelletization subsequently.At last be lower than the TLCP melting temperature so that under the situation that the TLCP fento is kept, according to actual needs pellet extruded or injection moulding obtains composite product.
The specific embodiment
Embodiment 1
The TLCP plasticizing machine of device: screw diameter 40mm, the spiral shell rib of screw rod equidistantly wait deeply draw ratio 9; Head outlet diameter 3mm.The two-rotor continuous mixer of device is reequiped with commercially available model S (X) LCM50, has additional second charge door mixing a section of upper plate middle part, root diameter 50mm, and the rotating speed of rotor is adjustable at 0～1000r/min.Raw material: TP PET, U.S. Dupont company product, the trade mark is Rynite; TLCP Vectra A130, Polyplastics company product.
PET 120 ℃ dry 4 hours down, TLCP 120 ℃ dry 12 hours down; With mass fraction is that 30 TLCP is added in the TLCP plasticizing machine, and the head outlet temperature is set at 320 ℃, and screw speed is 10r/min; With mass fraction is that 70 PET adds in the two-rotor continuous mixer, and the feeding section of two-rotor continuous mixer, mixing one section, mixing two sections and discharge port temperature are set at 160 ℃, 260 ℃, 280 ℃, 270 ℃ respectively, and rotor speed is set at 200r/min; The composite that the two-rotor continuous mixer discharge port is discharged utilizes vulcanizing press to carry out sample preparation.
Sample is observed about 1～7 μ m of diameter of TLCP fiber in this composite, about 5～55 μ m of length by electron-microscope scanning.
Embodiment 2
Device is with embodiment 1.Raw material: TP PP, Chinese Yanshan Petrochemical product, the trade mark are 1300, TLCP Vectra A130, Polyplastics company product.
PP 80 ℃ dry 4 hours down, TLCP 120 ℃ dry 12 hours down; With mass fraction is that 20 TLCP joins in the TLCP plasticizing machine, and the head outlet temperature is set at 320 ℃, and screw speed is 10r/min; With mass fraction is that 80 PP adds in the two-rotor continuous mixer, and feeding section, mixing one section, mixing two sections and discharge port temperature are set at 140 ℃, 200 ℃, 230 ℃, 210 ℃ respectively, and rotor speed is set at 200r/min.
Sample observes by electron-microscope scanning that the TLCP major part exists with fibre morphology in this composite, and fiber is longer, about 8～36 μ m of the diameter of fiber, about 23～202 μ m of length.
Embodiment 3
Device is with embodiment 1.Raw material: TP PP, Chinese Yanshan Petrochemical product, the trade mark are 1300, TLCP Vectra A130, Polyplastics company product.
PP 80 ℃ dry 4 hours down, TLCP 120 ℃ dry 12 hours down; With mass fraction is that 30 TLCP joins in the TLCP plasticizing machine, and the head outlet temperature is set at 320 ℃, and screw speed is 10r/min; With mass fraction is that 70 PP adds in the two-rotor continuous mixer, and feeding section, mixing one section, mixing two sections and discharge port temperature are set at 140 ℃, 200 ℃, 230 ℃, 210 ℃ respectively, and rotor speed is set at 200r/min.
It is longer that sample is observed in this composite the TLCP fiber by electron-microscope scanning, about 7～19 μ m of the diameter of fiber, about 70～160 μ m of length.
Embodiment 4
Device is with embodiment 1.Raw material: TP PA6, Ube product, the trade mark are 1030B, TLCP Vectra A130, Polyplastics company product.
PA6 100 ℃ dry 12 hours down, TLCP 120 ℃ dry 12 hours down; With mass fraction is that 30 TLCP joins in the TLCP plasticizing machine, and the head outlet temperature is set at 320 ℃, and screw speed is 10r/min; With mass fraction is that 70 PA6 adds in the two-rotor continuous mixer, and feeding section, mixing one section, mixing two sections and discharge port temperature are set at 160 ℃, 230 ℃, 250 ℃, 230 ℃ respectively, and rotor speed is set at 200r/min.
Sample observes by electron-microscope scanning that TLCP exists with fibre morphology mostly in this composite, about 2～6 μ m of the diameter of fiber, about 6～37 μ m of length.
Claims (4)
1, TLCP and thermoplastic plastic composite material preparation facilities is characterized in that: device is made up of plasticizing machine and mixing roll two parts, and the outlet of plasticizing machine and second charge door that mixing roll is opened in mixing section join.
2, device according to claim 1 is characterized in that: the plasticizing machine is by constituting with the lower part: loading hopper, machine barrel, Melt Pump, head, drive controller, screw rod, heater and frame;
The rear end of machine barrel is connected with the frame upper end, and drive controller is connected with screw drive, and its outlet of top that loading hopper is located at the plasticizing machine communicates with machine barrel, and Melt Pump is located between head and the machine barrel, and heater is located at the periphery of machine barrel.
3, device according to claim 1 is characterized in that: mixing roll is a two-rotor continuous mixer, and it is by constituting with the lower part: upper plate, lower plate, discharge port, rotor, feeder and rotor rotation controller; Upper plate and lower plate have three thermals treatment zone to be respectively: feeding section, mixing a section, mixing two sections; Mixing one section of the upper plate middle part is provided with second charge door, and rotor is a birotor.
4, according to claim 2 or 3 described devices, it is characterized in that: be provided with heat insulating mattress between the head lower end of plasticizing machine and the upper plate of mixing roll, head is fixedlyed connected with upper plate; The frame of plasticizing machine is fixedlyed connected with upper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201676296U CN200991988Y (en) | 2006-12-25 | 2006-12-25 | Thermotropic liquid crystal polymer and thermoplastic plastic composite material preparing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201676296U CN200991988Y (en) | 2006-12-25 | 2006-12-25 | Thermotropic liquid crystal polymer and thermoplastic plastic composite material preparing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200991988Y true CN200991988Y (en) | 2007-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201676296U Expired - Fee Related CN200991988Y (en) | 2006-12-25 | 2006-12-25 | Thermotropic liquid crystal polymer and thermoplastic plastic composite material preparing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN200991988Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502987A (en) * | 2008-02-04 | 2009-08-12 | 王广武 | Method and device for preparing polymer glassy alloy |
| CN101633216B (en) * | 2008-07-24 | 2014-02-26 | 米其林集团总公司 | Device and process for scraping a rubber mixer |
| CN108908781A (en) * | 2018-09-14 | 2018-11-30 | 杨洁磊 | A kind of environment-friendly and energy-efficient kneading device |
-
2006
- 2006-12-25 CN CNU2006201676296U patent/CN200991988Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502987A (en) * | 2008-02-04 | 2009-08-12 | 王广武 | Method and device for preparing polymer glassy alloy |
| CN101633216B (en) * | 2008-07-24 | 2014-02-26 | 米其林集团总公司 | Device and process for scraping a rubber mixer |
| CN108908781A (en) * | 2018-09-14 | 2018-11-30 | 杨洁磊 | A kind of environment-friendly and energy-efficient kneading device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20111225 |