CN203007186U - Equipment for producing thermoplastic polyurethane elastomer by using continuous method - Google Patents
Equipment for producing thermoplastic polyurethane elastomer by using continuous method Download PDFInfo
- Publication number
- CN203007186U CN203007186U CN2013200071845U CN201320007184U CN203007186U CN 203007186 U CN203007186 U CN 203007186U CN 2013200071845 U CN2013200071845 U CN 2013200071845U CN 201320007184 U CN201320007184 U CN 201320007184U CN 203007186 U CN203007186 U CN 203007186U
- Authority
- CN
- China
- Prior art keywords
- machine
- extruder
- reaction
- controller
- equipment
- 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 - Lifetime
Links
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
- B29C48/92—Measuring, controlling or regulating
-
- 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
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The utility model discloses equipment for producing thermoplastic polyurethane elastomer by using a continuous method. The equipment comprises material storage tanks, a pouring machine, an extruder, belt type reactors, a crushing machine and a packaging machine, wherein the extruder is connected with the belt type reactors through a connector, the pouring machine, the extruder, the belt type reactors, the crushing machine and the packaging machine are all electrically connected with a controller, and the extruder is a twin-screw extruder or single-screw extruder. According to the equipment, the controller is adopted to control the mixing and initial-stage reaction of the extruder, and the late-stage reaction of the belt type reactors and crystallization temperature adjustment are controlled by the controller, so that the reaction temperature is more accurate, the material reaction is fuller, the phase separation degree is high, the crystallization of products is increased, and the tensile strength and crystallization temperature of the products are improved; and the reactions are carried out in batches, the production of supramolecules is inhibited, product gel and insolubles are effectively reduced, the use range of the products is increased, and the products with higher requirements can be met.
Description
Technical field
The utility model relates to the high molecular polymer preparing technical field, particularly a kind of equipment of continuous processing production Polyurethane Thermoplastic Elastomer.
Background technology
Polyurethane Thermoplastic Elastomer (TPU) but have good elasticity body performance and thermoplastic processibility, be widely used in the fields such as trolley part, sealing member, medical instruments, cable, tubing, fire hose, footwear material.As write in Shanxi-Prov Inst of Chemical Industry " the polyurethane elastomer handbook (and Chemical Industry Press, 2005, describe relevant TPU preparation, performance and application in detail in P398).
Well-known preparation technology is twin screw extruder technique, and this method is that raw material is metered into polymerization and granulation in double-screw reactor.There is following problem in traditional twin screw extruder technique: 1, this expressing technique is fairly simple, mix and react and carry out simultaneously, but the product homogeneity that makes by this way is poor; 2, the residence time of material in forcing machine limited, be generally less than 1 minute, make reaction restive, cause product reaction not exclusively or gel occurs; 3, starting raw material temperature of reaction in reactor is higher, and easily generation is not wished and uncontrollable crosslinked allophanate secondary reaction.
In order to improve constantly the quality of TPU, satisfy many-sided demand, a lot of TPU manufacturing enterprise all actively is devoted to the improvement of production technique.The public word of bayer is produced TPU by prepolymer process in CN1281474, be mainly first with polyvalent alcohol and isocyanic ester at the tubular reactor reaction prepolymer, later stage reacts with chainextender prepolymer and generates TPU in double-screw reactor, but the later stage chain extending reaction all reacts by Couble screw rod high-temp, causes producing heterogeneity and uncontrollable secondary reaction.Because prepolymer viscosity is large, impact is measured simultaneously, complicated operation, and the cleaning difficulty causes obtaining satisfied effect.
Germany Bayer AG has announced a kind of Polyurethane Thermoplastic Elastomer multistage continuous production technology in patent CN128956IC.This technology main process is as follows: at first the part polyvalent alcohol is mixed generating prepolymer by static mixer with isocyanic ester, then react through tubular reactor after this prepolymer being mixed by static mixer with the residue polyvalent alcohol, resultant directly joins the ingress of twin screw and reacts in twin screw with chainextender, and the most all the material extruding pelletization makes finished product TPU.The twin screw technique that this technique is more traditional can prepare the more complicated TPU of composition, but the method operating procedure very complicated, to actual production control aspect having higher requirement.Also can't avoid simultaneously the generation of pyroreaction and the crosslinking reaction in later stage.Yantai Wanhua New Material Technology Co., Ltd attempted in patent CN101020737 by the residence time of machine prolongation in two rank in screw rod, but due to pyroreaction, caused gel more, and the product homogeneity is poor.
Therefore present twin screw technique and prepolymer process easily produce the super large molecule all less than effectively she controls the TPU late phase reaction, and the product heterogeneity easily generates insolubles and gel.
The utility model content
The purpose of this utility model is for the defects of prior art, to provide a kind of equipment of continuous processing production Polyurethane Thermoplastic Elastomer.
For solving the above-mentioned deficiency of prior art, technical scheme to be solved in the utility model is: a kind of equipment of continuous processing production Polyurethane Thermoplastic Elastomer, comprise storage tank, casting molding machine, forcing machine, belt reactor, pulverizer and wrapping machine, connect by junctor between described forcing machine and belt reactor, described casting molding machine, forcing machine, belt reactor, pulverizer and wrapping machine all are electrically connected to a controller, and described forcing machine is twin screw extruder or single screw extrusion machine; Described belt reactor is with the steel band of heating function or teflin tape.
As a kind of improvement of the equipment of the utility model continuous processing production Polyurethane Thermoplastic Elastomer, described controller is provided with power control switch, temperature regulation switch and temperature indicator.
As a kind of improvement of the equipment of the utility model continuous processing production Polyurethane Thermoplastic Elastomer, described controller (8) model is IPC-610L.
Adopt the method for the continuous production Polyurethane Thermoplastic Elastomer of system of the present utility model, comprise and mixing and initial reaction in following processing step: A, early stage, feed composition is measured in proportion, be poured into forcing machine the first heating zone by casting molding machine, regulate the Heating temperature in forcing machine rotating speed He Ge district by controller, the first Heating Zone Temperature is 90.C, all the other several Heating Zone Temperature are 140-180 ℃, and material is further mixed, and carry out initial reaction.
B, late phase reaction and crystallization, the material of initial reaction enters belt reactor by junctor, the heating of belt reactor Tong section, later stage is cooling, control on the temperature control button on controller and respectively distinguish temperature, carry out late phase reaction and crystallization in belt reactor, the heating zone temperature is 80-210.C, the cooling section temperature-stable is 70 ℃, the residence time is 8-30 minutes in belt reactor, obtains the flap that reacts completely of higher molecular weight.
C, finished product are pulverized flap by pulverizer, obtain finished product TPU particle, adopt wrapping machine to pack.
The continuous production method of Polyurethane Thermoplastic Elastomer, because isocyanate material, polyvalent alcohol, the chainextender of production Polyurethane Thermoplastic Elastomer is surface reaction, need to three fully contact can react completely.Forcing machine machine section is mainly that mixture makes the material initial reaction, and actual material is lower in this elementary reaction degree, and molecular weight does not also reach the numerical value that needs.Therefore this section control temperature is mainly in order to satisfy the needs of mixing of materials and initial reaction.According to the reaction characteristics of TPU self, control temperature and will guarantee that material can initiation reaction in the well-mixed while, therefore, forcing machine machine section the first Heating Zone Temperature low 90 ℃ of left and right; Because TPU is thermopositive reaction, so the temperature of several heating zone, back reaches 140-180.C。Therefore forcing machine provides pyroreaction, enough strong shearing is provided, each component of TPU is mixed and the initial reaction chain, the residence time of material is shorter, and less than 1 minute, the material of complete reaction was not extruded on belt reactor with certain thickness by T-shaped mouthful of mould, complete late phase reaction on the belt reactor with heating function, trickling is thick to the sheet on belt is that 1-lOmm. heats sheet material in course of conveying, and heating zone can adopt the thermopair heating, and Heating temperature is 80-210.C, it is cooling that cooling section can adopt cold wind to carry out, temperature-stable is 70 ℃, the heat-up time of TPU on belt is 5-20 minute, be 3-10 minute cooling time, and the reaction times is controlled at 8-30 minute, slowly completes late phase reaction and crystallization, then cooled sheet material is pulverized by pulverizer, obtained the TPU pulverized particles.
Compared with prior art, the utility model has the advantages that: adopt controller that mixing and the initial reaction of forcing machine are controlled, control belt reactor by controller and carry out late phase reaction and crystallization and temperature regulation, make temperature of reaction more accurate, material reaction is more abundant, the degree that is separated is high, increased the product crystallization, tensile strength and the Tc of product have been improved, and undertaken by reacting in batches, suppressed super macromolecular generation, effectively reduced product gel and insolubles, improve the use range of product, can meet the demands than high product.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below just with reference to the accompanying drawings the utility model is further described.
As shown in Figure 1, a kind of equipment of continuous processing production Polyurethane Thermoplastic Elastomer comprises storage tank 1, casting molding machine 2, forcing machine 3, belt reactor 4, pulverizer 5 and wrapping machine 6, connects by junctor 7 between described forcing machine 3 and belt reactor 4; Casting molding machine 2, forcing machine 3, belt reactor 4, pulverizer 5 and wrapping machine 6 all are electrically connected to a controller 8, and forcing machine 3 is twin screw extruder or single screw extrusion machine; Belt reactor 4 is steel band or teflin tape with heating function.
Wherein, controller 8 is provided with power control switch, temperature regulation switch and temperature indicator.Temperature of reaction on casting molding machine 2, forcing machine 3 and belt reactor 4 can be controlled according to the temperature that shows on temperature indicator, by temperature regulation switch, the temperature of casting molding machine 2, forcing machine 3 and belt reactor 4 is regulated.
The model of controller 8 models adopts IPC-610L.
Adopt the equipment of embodiment one, polyester polyol (catalyzer and oxidation inhibitor directly join in polyvalent alcohol), vulcabond MDI(diphenylmethanediisocyanate in batch can) and expand key agent BDO(1, the 4-butyleneglycol), be poured into the forcing machine section of forcing machine with rich thunder casting molding machine, the mixing head rotating speed is 3600RPM, and controlling forcing machine machine section the first Heating Zone Temperature is 90.C, all the other several Heating Zone Temperature are 140.80 ℃ of C-1, screw speed is controlled to be 40Hz; By T-shaped mouthful of mould, TPU is cast on belt reactor, cast thickness is 4mm, and wide cut is the sheet material of 1.2 meters, front 5 sections heating in the baking oven runner, temperature are 130 degree, back 3 district's wind cooling temperature lowerings, temperature-stable is 70 degree, and the residence time is 20 minutes in the baking oven runner; At last sheet material is pulverized, obtained the TPU pulverized particles, pack by wrapping machine.
Claims (3)
1. the equipment of a continuous processing production Polyurethane Thermoplastic Elastomer, comprise storage tank (1), casting molding machine (2), forcing machine (3), belt reactor (4), pulverizer (5) and wrapping machine (6), connect by junctor (7) between described forcing machine (3) and belt reactor (4); It is characterized in that, described casting molding machine (2), forcing machine (3), belt reactor (4), pulverizer (5) and wrapping machine (6) all are electrically connected to a controller (8), and described forcing machine (3) is twin screw extruder or single screw extrusion machine; Described belt reactor (4) is steel band or teflin tape with heating function.
2. the system of a kind of continuous processing production Polyurethane Thermoplastic Elastomer described according to claim l, is characterized in that, described controller (8) is provided with power control switch, temperature regulation switch and temperature indicator.
3. the system of a kind of continuous processing production Polyurethane Thermoplastic Elastomer described according to claim l, is characterized in that, described controller (8) model is IPC-610L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200071845U CN203007186U (en) | 2013-01-08 | 2013-01-08 | Equipment for producing thermoplastic polyurethane elastomer by using continuous method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200071845U CN203007186U (en) | 2013-01-08 | 2013-01-08 | Equipment for producing thermoplastic polyurethane elastomer by using continuous method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203007186U true CN203007186U (en) | 2013-06-19 |
Family
ID=48598799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200071845U Expired - Lifetime CN203007186U (en) | 2013-01-08 | 2013-01-08 | Equipment for producing thermoplastic polyurethane elastomer by using continuous method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203007186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411120A (en) * | 2018-09-21 | 2019-03-01 | 何银亚 | A kind of wire structure that high temperature resistant protective is strong |
-
2013
- 2013-01-08 CN CN2013200071845U patent/CN203007186U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411120A (en) * | 2018-09-21 | 2019-03-01 | 何银亚 | A kind of wire structure that high temperature resistant protective is strong |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101890782A (en) | Method for producing polystyrene extruded sheet with compressive strength larger than 700 kPa | |
| CN107286277B (en) | Method for preparing polyethylene wax by low-temperature cracking of recycled plastic through screw extruder | |
| CN101899201B (en) | Method for preparing PET (Polyethylene Terephthalate) engineering plastic particle of attapulgite fast crystallization | |
| CN202543125U (en) | System for producing TPU (Thermoplastic Polyurethane Elastomer) by continuous method | |
| CN105566721A (en) | High-temperature-resistant XPE (chemical cross-linked polyethylene) foam and preparation method thereof | |
| CN102396641A (en) | Extraction technology of high-water content non-puffed textured soybean protein | |
| CN110951136A (en) | Formula of high-transparency recycled plastic, preparation method and granulator | |
| CN203007186U (en) | Equipment for producing thermoplastic polyurethane elastomer by using continuous method | |
| CN102875879B (en) | Method for producing modified thermoplastic elastomer | |
| CN102617820B (en) | Continuous production method of thermoplastic polyurethane elastic body and special system of continuous production method | |
| CN102153826B (en) | Composites and methods for producing plastic-steel square timber and straw foamed plastic square timber | |
| CN103044821A (en) | Plastic plate and production method thereof | |
| CN109955452A (en) | A kind of isotactic polypropylene extrusion foaming device and technique | |
| CN102604207A (en) | Superfine talcum powder-polypropylene filled master batch, preparation method and device thereof | |
| CN103865204A (en) | Preparation method for energy-saving polyvinyl chloride tubular product | |
| CN100497435C (en) | Method for preparing polyethylene terephthalate capable of effectively control products terminal carboxyl group | |
| CN1124258A (en) | Black polyvinyl cable material and producing technology | |
| CN114015209A (en) | Slag micro powder enhanced PET plastic steel binding belt and preparation method thereof | |
| CN104650440A (en) | Preparation method of nucleating agent modified polyethylene tube | |
| CN115505233B (en) | Biomass modified ABS foaming material and preparation method thereof | |
| CN203558998U (en) | Production device for rubber powder modified asphalt | |
| CN105885260A (en) | Thermal insulation extruded plate with brominated polystyrene serving as flame retardant and preparation method of thermal insulation extruded plate | |
| CN211546386U (en) | High-transparency regenerated plastic granulator | |
| CN209987214U (en) | Reinforced blending modified water ring hot granulating device | |
| CN105733124A (en) | Processing aid (ACR) improved PVC (polyvinyl chloride) material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |