CN114716646B - Anti-fatigue high-performance polyurethane elastomer and preparation process thereof - Google Patents

Anti-fatigue high-performance polyurethane elastomer and preparation process thereof Download PDF

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Publication number
CN114716646B
CN114716646B CN202210384768.8A CN202210384768A CN114716646B CN 114716646 B CN114716646 B CN 114716646B CN 202210384768 A CN202210384768 A CN 202210384768A CN 114716646 B CN114716646 B CN 114716646B
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colloidal particles
frame
extrusion
component
stirring
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CN114716646A (en
Inventor
郭守恒
肖本国
黄晓宝
孙磊
张驰
何立群
唐小龙
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Anhui Guodian Cable Co ltd
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Anhui Guodian Cable Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/287—Raw material pre-treatment while feeding
    • 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
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Abstract

The invention relates to an anti-fatigue high-performance polyurethane elastomer and a preparation process thereof, wherein the preparation process comprises the following specific process steps: carrying out hot melting on the mixed colloidal particles formed by the X and the Y by adopting elastomer preparation equipment; stirring the hot-melted colloidal particles by adopting elastomer preparation equipment; and extruding, cooling and condensing the colloidal particles in the hot melt state by adopting elastomer preparation equipment, so as to prepare and shape the sheath. The elastic body preparation equipment is provided with four foot pad tables, and the four foot pad tables are respectively provided with an extrusion cylinder, an overhead crane main frame and a control console; the mounting and hanging main frame is respectively provided with a blanking control assembly and a pointed cone for loading colloidal particles of the mixture of the X component and the Y component; the control console is provided with a stirring control component. The invention can quantitatively supply colloidal particles and ensure the constancy of the production capacity of each processing. The invention can carry out hot melting, stirring, extrusion, condensation and molding on the colloidal particles, and the whole operation is relatively convenient.

Description

Anti-fatigue high-performance polyurethane elastomer and preparation process thereof
Technical Field
The invention relates to the field related to cable production, in particular to an anti-fatigue high-performance polyurethane elastomer and a preparation process thereof.
Background
The cable sheath is an external protection structure of the cable, and the performance of the cable greatly influences the performance and service life of the cable. Therefore, when the cable sheath is manufactured, light has severe requirements on material selection, and a high-performance material is required to be adopted so as to ensure that the cable sheath has proper hardness, good mechanical strength and excellent deformation resistance.
In addition, when the materials are selected, the sheath needs to be extruded and molded by adopting corresponding equipment, but the two steps of work are difficult to complete under the current existing conditions.
Disclosure of Invention
In order to meet the requirements of the high-performance materials and realize the preparation and molding of the cable sheath, the invention provides an anti-fatigue high-performance polyurethane elastomer and a preparation process thereof.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
an anti-fatigue high-performance polyurethane elastomer is composed of an X component and a Y component; the X component comprises the following components in percentage by mass:
macromolecular polyol 80
P-phenylene diisocyanate 20
Wherein the macromolecular polyol can be polyester glycol, polyether glycol or polytetrahydrofuran glycol.
The Y component comprises the following components in percentage by mass:
catalyst 2
Chain extender 68
Other auxiliary agent 30
Wherein the catalyst can be one or more of tertiary amines, organobismuth compounds or organotin compounds. Other auxiliary agents can be release agents, hydrolysis stabilizers, antioxidants, antistatic agents, and the like.
The ratio of the X component to the Y component is 10:1.
a preparation process of an anti-fatigue high-performance polyurethane elastomer comprises the following specific process steps:
s1: carrying out hot melting on the mixed colloidal particles formed by the X and the Y by adopting elastomer preparation equipment;
s2: stirring the hot-melted colloidal particles by adopting elastomer preparation equipment;
s3: and extruding, cooling and condensing the colloidal particles in the hot melt state by adopting elastomer preparation equipment, so as to prepare and shape the sheath.
The elastic body preparation equipment is provided with four foot pad tables, and the four foot pad tables are respectively provided with an extrusion cylinder, an overhead crane main frame and a control console; the mounting and hanging main frame is respectively provided with a blanking control assembly and a pointed cone for loading colloidal particles of the mixture of the X component and the Y component; the control console is provided with a stirring control component. Normally, colloidal particles of the X component and the Y component in the pointed cone are mixed in proportion. The extrusion cylinder is used for hot melting the colloidal particles and extruding the colloidal particles. The blanking control assembly is used for accurately controlling the feeding amount of each colloidal particle. The stirring control component is responsible for stirring the materials in a molten state uniformly.
The lower part of the pointed cone cylinder is provided with a discharging channel, and the bottom of the discharging channel is provided with an expansion plugging surface. The upper end and the lower end of the pointed cone are both open, but the outlet at the lower end of the pointed cone is relatively smaller. The bottom surface of the expansion plugging surface is coplanar with the bottom surface of the discharging channel.
The blanking control assembly comprises a plugging plate connected with the hanging main frame, a material distributing frame propped against the upper end of the plugging plate, a large gear ring arranged on the radial outer side of the material distributing frame, a spur gear meshed with the large gear ring and an I-shaped motor connected with the spur gear; the I-type motor is arranged on the plugging plate.
The material distributing frame is formed by integrating an inner extending frame, an outer ring frame, an inner ring frame and a plurality of separating guard plates distributed in an annular shape; the upper end of the material distributing frame is propped against the expansion plugging surface; every two adjacent separation guard plates can enclose into a storage unit frame with the outer ring frame and the inner ring frame, and colloidal particles in the pointed cone can automatically fall into the storage unit frame corresponding to the lower part of the pointed cone. The blocking surface can prevent the particles from falling too much to overflow the storage unit frame.
The plugging plate is provided with a quantitative blanking groove.
Namely through I type motor rotary drive and gear drive, can make every empty storage unit frame rotate in proper order and load the micelle through the below of pointed cone, and the storage unit frame that is equipped with the micelle rotates when passing through to quantitative blanking groove top, will put into the capsule in total.
The amount of colloidal particles added each time is approximately controlled to 3-4 components of the storage unit frame.
The upper end of each separation guard plate is in a pointed cone shape, and the large gear ring is arranged on the outer cambered surface of the outer ring frame. The above is of conventional design.
The inner extension frame is connected with a vertical rod welded on the plugging plate through a bearing. The position of the upright rod corresponds to the circle center positions corresponding to the outer ring frame and the inner ring frame. The above structural arrangement is a necessary condition that the material separating frame is rotatable.
The stirring control assembly comprises a stirring rod positioned in the extrusion barrel, a connecting rod connected with the stirring rod and two combining rods arranged on the right side of the connecting rod; two planar spiral grooves are formed in the control console, and the lower end of each combining rod is in sliding fit with the corresponding planar spiral groove. The combination rod is controlled to slide along the plane spiral groove, so that the stirring rod is controlled to stir colloidal particles entering the extrusion barrel after hot melting.
The stirring control assembly also comprises a motor frame arranged on the control console, a type II motor arranged on the motor frame and an auxiliary rocker connected with the type II motor; the auxiliary rocker is provided with a clamping groove which is in sliding fit with any one of the combination rods. The above provides a drive element for controlling the stirring of the stirring rod.
The inside of the extrusion cylinder is composed of a storage cavity and an extrusion cavity, a slidable side plate is arranged between the storage cavity and the extrusion cavity, the stirring rod is positioned in the storage cavity, and an electric heater is also arranged in the storage cavity; the front part of the extrusion cavity is provided with an extrusion channel, and a condenser is arranged at the extrusion channel. The electric heater and the condenser are externally connected with a controller and a temperature display for controlling and displaying the temperature during heating and condensing. The extrusion chamber can be internally provided with a delivery pump.
The colloidal particles which just enter the extrusion barrel are blocked by the side plates and are retained in the storage cavity, the colloidal particles are hot melted by the electric heater, then the colloidal particles can be stirred to a uniform state, the side plates are pulled to be removed, so that the colloidal particles in the hot melted state enter the extrusion cavity, then the colloidal particles are extruded and conveyed by the extrusion channel by the conveying pump, and are condensed by the condenser in the conveying process.
The beneficial effects of the invention are as follows:
1. a material of an anti-fatigue high-performance polyurethane elastomer is provided, which has proper hardness, good mechanical strength and excellent deformation resistance.
2. The colloidal particles can be quantitatively supplied, and the constancy of the production capacity of each processing can be ensured.
3. Can carry out hot melt, stirring and extrusion condensation molding to the micelle, whole operation is relatively convenient.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a block diagram of a pointed cone;
FIG. 6 is an enlarged view of a portion at I of FIG. 1;
fig. 7 is a partial enlarged view at II of fig. 1.
In the figure: 1. a four foot pad table; 2. an extrusion cylinder; 201. a storage cavity; 202. an extrusion chamber; 3. hanging a main frame; 4. a console; 5. a pointed cone; 6. a plugging plate; 7. a material separating frame; 701. an outer ring frame; 702. an inner ring frame; 703. a separation guard plate; 704. an inner extension frame; a separation guard plate; 8. a large gear ring; 9. spur gears; 10. a type I motor; 11. a stirring rod; 12. a connecting rod; 13. a joining rod; 14. a motor frame; 15. a type II motor; 16. an auxiliary rocker; 17. a side plate; 18. an electric heater; 19. a condenser; 20. and (5) standing a pole.
Detailed Description
In order to make the technical solution of the present invention better understood by a person skilled in the art, the present invention will be more clearly and more fully described below with reference to the accompanying drawings in the embodiments, and of course, the described embodiments are only a part of, but not all of, the present invention, and other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of the present invention.
An anti-fatigue high-performance polyurethane elastomer is composed of an X component and a Y component; the X component comprises the following components in percentage by mass:
macromolecular polyol 80
P-phenylene diisocyanate 20
Wherein the macromolecular polyol can be polyester glycol, polyether glycol or polytetrahydrofuran glycol.
The Y component comprises the following components in percentage by mass:
catalyst 2
Chain extender 68
Other auxiliary agent 30
Wherein the catalyst can be one or more of tertiary amines, organobismuth compounds or organotin compounds. Other auxiliary agents can be release agents, hydrolysis stabilizers, antioxidants, antistatic agents, and the like.
The ratio of the X component to the Y component is 10:1.
a preparation process of an anti-fatigue high-performance polyurethane elastomer comprises the following specific process steps:
s1: carrying out hot melting on the mixed colloidal particles formed by the X and the Y by adopting elastomer preparation equipment;
s2: stirring the hot-melted colloidal particles by adopting elastomer preparation equipment;
s3: and extruding, cooling and condensing the colloidal particles in the hot melt state by adopting elastomer preparation equipment, so as to prepare and shape the sheath.
As shown in fig. 1 to 7, the elastomer preparation apparatus is provided with four foot pad tables 1, and the four foot pad tables 1 are respectively provided with an extrusion cylinder 2, an installation crane main frame 3 and a control table 4; the mounting and hanging main frame 3 is respectively provided with a blanking control assembly and a pointed cone 5 for loading colloidal particles of the mixture of the X component and the Y component; the console 4 is provided with a stirring control assembly. Normally, the colloidal particles of the X component and the Y component inside the pointed cone 5 are mixed in proportion. The extrusion cylinder 2 is used for hot melting the colloidal particles and extruding the colloidal particles. The blanking control assembly is used for accurately controlling the feeding amount of each colloidal particle. The stirring control component is responsible for stirring the materials in a molten state uniformly.
The lower part of the pointed cone 5 is provided with a discharging channel 5a, and the bottom of the discharging channel 5a is provided with an expansion plugging surface 5b. The upper end and the lower end of the pointed cone 5 are both open, but the outlet at the lower end is relatively smaller. The bottom surface of the expansion plugging surface 5b is coplanar with the bottom surface of the discharging channel 5 a.
The blanking control assembly comprises a plugging plate 6 connected with the hanging main frame 3, a material separating frame 7 propped against the upper end of the plugging plate 6, a large gear ring 8 arranged on the radial outer side of the material separating frame 7, a spur gear 9 meshed with the large gear ring 8, and an I-type motor 10 connected with the spur gear 9; the I-type motor 10 is mounted on the plugging plate 6.
The material separating frame 7 is formed by integrating an inner extending frame 704, an outer ring frame 701, an inner ring frame 702 and a plurality of separating guard plates 703 which are distributed in a ring shape; the upper end of the material distributing frame 7 is propped against the expansion plugging surface 5 b; every two adjacent separation guard plates 703, the outer ring frame 701 and the inner ring frame 702 can enclose a storage unit frame, and colloidal particles in the pointed cone 5 can automatically fall into the storage unit frame corresponding to the lower part of the pointed cone. The blocking surface 5b can prevent particles from falling too much to overflow the outside of the storage unit frame.
The plugging plate 6 is provided with a quantitative blanking groove 6a.
Namely, through the rotation driving and gear transmission of the I-type motor 10, each empty storage unit frame can sequentially rotate to pass through the lower part of the pointed cone 5 to load colloidal particles, and when the storage unit frame filled with colloidal particles rotates to pass above the quantitative blanking groove 6a, the colloidal particles are completely put into the extrusion barrel 2.
The amount of colloidal particles added each time is approximately controlled to 3-4 components of the storage unit frame.
The upper end of each separation guard plate 703 is in a pointed cone shape, and a large gear ring 8 is mounted on the outer arc surface of the outer ring frame 701. The above is of conventional design.
The inner extension frame 704 is connected with a vertical rod 20 welded on the plugging plate 6 through a bearing. The upright 20 corresponds to the center positions of the outer ring frame 701 and the inner ring frame 702. The above structural arrangement is a necessary condition for the rotatable separating frame 7.
The stirring control assembly comprises a stirring rod 11 positioned in the extrusion barrel 2, a connecting rod 12 connected with the stirring rod 11 and two combining rods 13 arranged on the right side of the connecting rod 12; two planar spiral grooves 4a are formed in the control console 4, and the lower end of each combination rod 13 is in sliding fit with the corresponding planar spiral groove 4 a. The joint rod 13 is controlled to slide along the plane spiral groove 4a, so that the stirring rod 11 is controlled to stir the colloidal particles entering the extrusion barrel 2 after being melted.
The stirring control assembly also comprises a motor frame 14 arranged on the console 4, a type II motor 15 arranged on the motor frame 14 and an auxiliary rocker 16 connected with the type II motor 15; the auxiliary rocker 16 is provided with a clamping groove 16a which is in sliding fit with any one of the combining rods 13. The above provides a driving element for controlling the stirring of the stirring bar 11.
The inside of the extrusion cylinder 2 is composed of a storage cavity 201 and an extrusion cavity 202, a slidable side plate 17 is arranged between the storage cavity 201 and the extrusion cavity 202, the stirring rod 11 is positioned in the storage cavity 201, and an electric heater 18 is also arranged in the storage cavity 201; the front part of the extrusion chamber 202 is provided with an extrusion channel 202a, and a condenser 19 is arranged at the extrusion channel 202 a. The electric heater 18 and the condenser 19 are externally connected with a controller and a temperature display for controlling and displaying the temperature during heating and condensing. A delivery pump may be loaded within the extrusion chamber 202.
The colloidal particles just entering the extrusion barrel 2 are blocked by the side plates 17 and are retained in the storage cavity 201, the colloidal particles are hot melted by the electric heater 18, then the colloidal particles can be stirred to a uniform state, the side plates 17 are pulled to be removed, so that the colloidal particles in the hot melted state enter the extrusion cavity 202, then the extrusion channel 202a is extruded and conveyed by the conveying pump, and the colloidal particles are condensed by the condenser 19 in the conveying process.
The specific use process of the invention is as follows:
s1: the straight gear 9 is driven to intermittently rotate by the I-type motor 10, so that the mixed colloidal particles in the pointed cone 5 quantitatively enter the storage cavity 201 through the rotation of the material separating frame 7.
S2: the colloidal particles in the storage chamber 201 are thermally melted by the electric heater 18.
S3: the auxiliary rocker 16 is driven to rotate by the type II motor 15, so that the stirring rod 11 moves along the track of the plane spiral groove 4a and is used for stirring after the colloidal particles are hot melted.
S4: the side plates 17 are slidingly removed to allow the hot melt slug to enter the extrusion chamber 202.
S5: the hot-melt colloidal particles are extruded to the extrusion channel 202a by a delivery pump arranged outside the extrusion cavity 202, and the condenser 19 is controlled to cool and condense, so that the sheath is prepared and molded.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (2)

1. The preparation process of the anti-fatigue high-performance polyurethane elastomer is based on an anti-fatigue high-performance polyurethane elastomer, which consists of an X component and a Y component;
the method is characterized in that:
the X component comprises the following components in percentage by mass:
macromolecular polyol 80
P-phenylene diisocyanate 20
The Y component comprises the following components in percentage by mass:
catalyst 2
Chain extender 68
Other auxiliary agent 30
The ratio of the X component to the Y component is 10:1, a step of;
the specific process steps are as follows:
s1: carrying out hot melting on the mixed colloidal particles formed by the X and the Y by adopting elastomer preparation equipment;
s2: stirring the hot-melted colloidal particles by adopting elastomer preparation equipment;
s3: extruding, cooling and condensing colloidal particles in a hot melting state by adopting elastomer preparation equipment to prepare and shape the sheath;
the elastomer preparation equipment is provided with four foot pad tables (1), wherein an extrusion cylinder (2), an installation hanging main frame (3) and a control table (4) are respectively arranged on the four foot pad tables (1); the mounting and hanging main frame (3) is respectively provided with a blanking control assembly and a pointed cone (5) for loading colloidal particles of the mixture of the X component and the Y component; a stirring control component is arranged on the console (4);
the lower part of the pointed cone (5) is provided with a discharging channel (5 a), and the bottom of the discharging channel (5 a) is provided with an expansion plugging surface (5 b); the blanking control assembly comprises a blocking plate (6) connected with the hanging main frame (3), a material distributing frame (7) propped against the upper end of the blocking plate (6), a large gear ring (8) arranged on the radial outer side of the material distributing frame (7), a spur gear (9) meshed with the large gear ring (8) and an I-type motor (10) connected with the spur gear (9); the I-type motor (10) is arranged on the plugging plate (6);
the material separating frame (7) is formed by integrating an inner extending frame (704), an outer ring frame (701), an inner ring frame (702) and a plurality of separating guard plates (703) distributed in a ring shape; the upper end of the material distributing frame (7) is propped against the expansion plugging surface (5 b); a quantitative blanking groove (6 a) is arranged on the plugging plate (6); the inner extension frame (704) is connected with a vertical rod (20) welded on the plugging plate (6) through a bearing;
the upper end of each separation guard plate (703) is in a pointed cone shape, and a large gear ring (8) is arranged on the outer cambered surface of the outer ring frame (701);
the stirring control assembly comprises a stirring rod (11) positioned in the extrusion barrel (2), a connecting rod (12) connected with the stirring rod (11) and two combining rods (13) arranged on the right side of the connecting rod (12); two planar spiral grooves (4 a) are formed in the control console (4), and the lower end of each combination rod (13) is in sliding fit with the corresponding planar spiral groove (4 a);
the stirring control assembly also comprises a motor frame (14) arranged on the console (4), a II-type motor (15) arranged on the motor frame (14) and an auxiliary rocker (16) connected with the II-type motor (15); a clamping groove (16 a) which is in sliding fit with any one of the combining rods (13) is formed in the auxiliary rocker (16);
the inside of the extrusion cylinder (2) is composed of a storage cavity (201) and an extrusion cavity (202), a slidable side plate (17) is arranged between the storage cavity (201) and the extrusion cavity (202), the stirring rod (11) is positioned in the storage cavity (201), and an electric heater (18) is also arranged in the storage cavity (201); the front part of the extrusion cavity (202) is provided with an extrusion channel (202 a), and a condenser (19) is arranged at the extrusion channel (202 a).
2. The process for preparing an anti-fatigue high-performance polyurethane elastomer according to claim 1, which is characterized in that:
the use process is as follows:
s1: the straight gear (9) is driven to intermittently rotate through the I-shaped motor (10), so that mixed colloidal particles in the pointed cone (5) quantitatively enter the storage cavity (201) through rotation of the material separating frame (7);
s2: carrying out hot melting on colloidal particles in the storage cavity (201) through an electric heater (18);
s3: the auxiliary rocker (16) is driven to rotate by the II-type motor (15), so that the stirring rod (11) moves along the track of the plane spiral groove (4 a) and is used for stirring the colloidal particles after hot melting;
s4: sliding the removing side plate (17) to enable the hot-melt colloidal particles to enter the extrusion cavity (202);
s5: the hot-melt colloidal particles are extruded to the extrusion channel (202 a) through a conveying pump arranged in the extrusion cavity (202), and the condenser (19) is controlled to cool and condense, so that the sheath is prepared and molded.
CN202210384768.8A 2022-04-13 2022-04-13 Anti-fatigue high-performance polyurethane elastomer and preparation process thereof Active CN114716646B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110606927A (en) * 2019-08-12 2019-12-24 黎明化工研究设计院有限责任公司 High-performance polyurethane damping material and preparation method thereof
CN112175293A (en) * 2020-10-22 2021-01-05 武汉金牛经济发展有限公司 High-impact PP-R pipe and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110606927A (en) * 2019-08-12 2019-12-24 黎明化工研究设计院有限责任公司 High-performance polyurethane damping material and preparation method thereof
CN112175293A (en) * 2020-10-22 2021-01-05 武汉金牛经济发展有限公司 High-impact PP-R pipe and preparation method thereof

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