Engineering plastic formula and preparation method

Abstract

The invention discloses an engineering plastic formula and a preparation method. The engineering plastic formula comprises a main material and an auxiliary material, the main materials comprise polypropylene and resin; the auxiliary materials comprise color master batch and calcium carbonate master batch, and the preparation method comprises the following steps: feeding, mixing, extruding after electric heating, cooling and pelletizing. According to the invention, a novel high-speed mixer is adopted to quickly mix the raw materials, a physical mixing modified material technology is adopted, and on the premise of economy and reasonability, advanced production process and equipment are adopted, so that the process flow is shortened, and raw and auxiliary materials and energy consumption are saved.

Description

Technical Field

[0001] The invention relates to the technical field of new materials, and in particular to a formula and a preparation method of engineering plastics. Background Art

[0002] Engineering plastics refer to industrial plastics used as industrial parts or housing materials. They are plastics with excellent strength, impact resistance, heat resistance, hardness and aging resistance. The Japanese industry defines it as "high-performance plastics that can be used as structures and mechanical parts, with a heat resistance of more than 100°C, and are mainly used in industry."

[0003] Engineering plastics can be used as engineering materials and plastics that replace metals to manufacture machine parts. Engineering plastics have excellent comprehensive properties, high rigidity, low creep, high mechanical strength, good heat resistance, good electrical insulation, can be used for a long time in harsh chemical and physical environments, and can replace metals as engineering structural materials.

[0004] The traditional production process of engineering plastics includes mixing, extrusion and pelletizing. The mixer in the prior art usually adds all the raw materials at one time, which easily causes uneven mixing of the raw materials, long mixing time and low mixing efficiency.

[0005] Therefore, how to provide an engineering plastic formula and preparation method to solve the problems existing in the prior art is of great significance to its application. Summary of the invention

[0006] In view of this, the purpose of this application is to provide an engineering plastic formula and a preparation method to solve the problem.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An engineering plastic formula and preparation method, the engineering plastic formula includes main materials and auxiliary materials;

[0009] The main materials include polypropylene and resin;

[0010] Auxiliary materials include masterbatch and calcium carbonate masterbatch.

[0011] A method for preparing engineering plastics comprises the following steps:

[0012] S1: Loading: Load the engineering plastic raw materials according to the formula percentage;

[0013] S2: Mixing: Use a high-speed mixer to mix the raw materials at high speed for 10-20 minutes;

[0014] S3: Extrusion after electric heating: The mixed raw materials are heated by an extruder at a temperature of 180-220°C, and then extruded into filaments by a screw rod;

[0015] S4: Cooling: The semi-finished product obtained in S3 is transported by a conveying mechanism and cooled and formed using cooling water;

[0016] S5: Pelletizing: Pelletize the long strip semi-finished product using a pelletizer to obtain a finished product.

[0017] Preferably, polypropylene uses T30S and PPK9928H.

[0018] Preferably, the resin is PA6YH-800 and PA66EPR-27.

[0019] Preferably, the high-speed mixer of step S2 includes a base and a stirring barrel, a motor is provided on one side of the top of the base, the output shaft of the motor is drivingly connected to the sixth transmission pulley, the other side of the top of the base is fixedly connected to the support, the stirring barrel is installed on the top of the support, the top of the base is rotatably connected to the first transmission rod, the two ends of the first transmission rod are respectively fixedly connected to the fourth transmission pulley and the main stirring frame, the main stirring frame is located inside the stirring barrel, and the sixth transmission pulley and the fourth transmission pulley are connected by the second transmission belt.

[0020] Preferably, one side of the support is rotatably connected to a second transmission rod, both ends of the second transmission rod are respectively fixedly connected to a third transmission gear and a fourth transmission gear, the middle part of the first transmission rod is fixedly connected to a second transmission gear, and the third transmission gear is transmission-connected to the support.

[0021] Preferably, a bracket is fixedly connected to the middle part of the top of the base, a quantitative shell is fixedly connected to the top of the bracket, a quantitative roller is rotatably connected to the inside of the quantitative shell, a quantitative groove is provided inside the quantitative roller, one end of the quantitative roller is transmission-connected to a third transmission pulley, the top of the quantitative shell is connected to an auxiliary material funnel, and the bottom of the quantitative shell is connected to the mixing barrel through an auxiliary material inlet pipe.

[0022] Preferably, the bottom end of the bracket is rotatably connected to a first transmission gear, the first transmission gear is transmission-connected to a first transmission pulley, the first transmission pulley and the third transmission pulley are transmission-connected via a first transmission belt, and the first transmission gear is meshingly connected to a fourth transmission gear.

[0023] Preferably, a fifth transmission pulley is fixedly connected to the middle portion of the second transmission rod, an auxiliary mixing frame is rotatably connected to one side inside the mixing barrel, a second transmission pulley is fixedly connected to one end of the auxiliary mixing frame, and the second transmission pulley and the fifth transmission pulley are connected via a third transmission belt.

[0024] Preferably, a discharge pipe is installed on one side of the bottom end of the mixing barrel, a cylinder is installed on the outer side of the discharge pipe, and an upper cover is installed on the top end of the mixing barrel.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention adopts a new high-speed mixer to quickly mix the raw materials and adopts physical mixing modified material technology. Under the premise of economic rationality, this project adopts advanced production technology and equipment to shorten the process flow and save raw and auxiliary materials and energy consumption.

[0027] 2. The high-speed mixer of the present invention adopts double stirring frames, the main stirring frame stirs the bottom of the material, and the auxiliary mixing frame realizes the up and down flipping of the material, thereby greatly improving the efficiency of material stirring.

[0028] 3. The auxiliary materials in the high-speed mixer of the present invention are put in dispersedly, so that the auxiliary materials can be mixed evenly, the uniformity of the mixture is improved, and then the product quality is improved.

[0029] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0030] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0032] Figure 1 is a flow chart of the method of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the high-speed mixer in the present invention;

[0034] Figure 3 It is a structural diagram of the quantitative roller in the present invention.

[0035] In the figure: 1. base; 2. first transmission gear; 3. motor; 4. first transmission pulley; 5. first transmission belt; 6. second transmission pulley; 7. third transmission pulley; 8. auxiliary material hopper; 9. auxiliary material inlet pipe; 10. auxiliary mixing frame; 11. upper cover; 12. stirring barrel; 13. discharge pipe; 14. cylinder; 15. main stirring frame; 16. second transmission gear; 17. first transmission rod; 18. fourth transmission pulley; 19. third transmission gear; 20. support; 21. second transmission belt; 22. fifth transmission pulley; 23. third transmission belt; 24. sixth transmission pulley; 25. quantitative housing; 26. quantitative roller; 27. quantitative groove; 28. second transmission rod; 29. ​​fourth transmission gear; 30. bracket. DETAILED DESCRIPTION

[0036] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0037] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0038] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0039] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0040] See also Figure 1-3, the present invention provides a technical solution of an engineering plastic formula and a preparation method: the engineering plastic formula includes a main material and auxiliary materials;

[0041] The main materials include polypropylene and resin;

[0042] Auxiliary materials include masterbatch and calcium carbonate masterbatch.

[0043] A method for preparing engineering plastics comprises the following steps:

[0044] S1: Loading: Load the engineering plastic raw materials according to the formula percentage;

[0045] S2: Mixing: Use a high-speed mixer to mix the raw materials at high speed for 15 minutes;

[0046] S3: Extrusion after electric heating: The mixed raw materials are heated by an extruder at a temperature of 200°C, and then extruded into filaments by a screw rod;

[0047] S4: Cooling: The semi-finished product obtained in S3 is transported by a conveying mechanism and cooled and formed using cooling water;

[0048] S5: Pelletizing: Pelletize the long strip semi-finished product using a pelletizer to obtain a finished product.

[0049] Polypropylene uses T30S and PPK9928H.

[0050] The resins used are PA6YH-800 and PA66EPR-27.

[0051] The high-speed mixer of step S2 includes a base 1 and a stirring barrel 12, a motor 3 is provided on one side of the top of the base 1, the output shaft of the motor 3 is transmission-connected with a sixth transmission pulley 24, the other side of the top of the base 1 is fixedly connected with a support 20, the stirring barrel 12 is installed on the top of the support 20, the top of the base 1 is rotationally connected with a first transmission rod 17, both ends of the first transmission rod 17 are respectively fixedly connected with a fourth transmission pulley 18 and a main stirring frame 15, the main stirring frame 15 is located inside the stirring barrel 12, and the sixth transmission pulley 24 and the fourth transmission pulley 18 are transmission-connected by a second transmission belt 21.

[0052] A second transmission rod 28 is rotatably connected to one side of the support 20, and the two ends of the second transmission rod 28 are respectively fixedly connected to the third transmission gear 19 and the fourth transmission gear 29, the middle part of the first transmission rod 17 is fixedly connected to the second transmission gear 16, and the third transmission gear 19 is transmission-connected to the support 20, and a bracket 30 is fixedly connected to the middle part of the top of the base 1, and a quantitative housing 25 is fixedly connected to the top of the bracket 30, and a quantitative roller 26 is rotatably connected inside the quantitative housing 25, and a quantitative groove 27 is provided inside the quantitative roller 26, and one end of the quantitative roller 26 is transmission-connected to the third transmission pulley 7, and the top of the quantitative housing 25 is connected to the auxiliary material funnel 8, and the bottom of the quantitative housing 25 is connected to the mixing barrel 12 through the auxiliary material inlet pipe 9, and the bottom end of the bracket 30 is rotatably connected to the first transmission gear 2, and the first transmission gear 2 is transmission-connected to the first transmission pulley 4, and the first transmission pulley 4 and the third transmission pulley 7 are transmission-connected through the first transmission belt 5, and the first transmission gear 2 is meshed with the fourth transmission gear 29.

[0053] During stirring, the motor 3 is started, the motor 3 drives the sixth transmission pulley 24 to rotate, the sixth transmission pulley 24 drives the fourth transmission pulley 18 to rotate through the second transmission belt 21, the fourth transmission pulley 18 drives the main stirring frame 15 to rotate through the first transmission rod 17, and the main stirring frame 15 stirs and mixes the materials.

[0054] A fifth transmission pulley 22 is fixedly connected to the middle of the second transmission rod 28, and an auxiliary mixing frame 10 is rotatably connected to one side of the inside of the mixing barrel 12. A second transmission pulley 6 is fixedly connected to one end of the auxiliary mixing frame 10. The second transmission pulley 6 and the fifth transmission pulley 22 are connected for transmission via a third transmission belt 23. During the rotation of the second transmission rod 28, the second transmission rod 28 drives the fifth transmission pulley 22 to rotate, and the fifth transmission pulley 22 drives the second transmission pulley 6 to rotate via the third transmission belt 23. The second transmission pulley 6 drives the auxiliary mixing frame 10 to rotate, thereby realizing the up and down flipping of the material and improving the stirring and mixing efficiency.

[0055] A discharge pipe 13 is installed at one side of the bottom of the mixing barrel 12, and a cylinder 14 is installed outside the discharge pipe 13. After the mixing is completed, the motor 3 is turned off and the cylinder 14 is started to discharge the mixed material. An upper cover 11 is installed at the top of the mixing barrel 12.

[0056] In this embodiment, the main material is put into the mixing barrel 12 from the top according to the proportion, and then the auxiliary material is put into the auxiliary material funnel 8. During mixing, the motor 3 is started, the motor 3 drives the sixth transmission pulley 24 to rotate, the sixth transmission pulley 24 drives the fourth transmission pulley 18 to rotate through the second transmission belt 21, the fourth transmission pulley 18 drives the main stirring frame 15 to rotate through the first transmission rod 17, the main stirring frame 15 stirs and mixes the materials, when the first transmission rod 17 rotates, it drives the second transmission rod 28 to rotate through the second transmission gear 16, the second transmission rod 28 drives the first transmission gear 2 to rotate through the fourth transmission gear 29, the first transmission gear 2 drives the first transmission pulley 4 to rotate, the first transmission pulley 4 drives the third transmission pulley 15 through the first transmission belt 5. The pulley 7 rotates, and the quantitative roller 26 rotates at this time. When the opening of the quantitative groove 27 faces upward, the auxiliary material in the auxiliary material funnel 8 falls into the quantitative groove 27. When the opening of the quantitative groove 27 faces the auxiliary material inlet pipe 9, the auxiliary material is transported to the mixing barrel 12 through the auxiliary material inlet pipe 9, so that the auxiliary material is quantitatively dispersed during the mixing process, so that the auxiliary material input is more uniform. At the same time, during the rotation of the second transmission rod 28, the second transmission rod 28 drives the fifth transmission pulley 22 to rotate, and the fifth transmission pulley 22 drives the second transmission pulley 6 to rotate through the third transmission belt 23, and the second transmission pulley 6 drives the auxiliary mixing frame 10 to rotate, so as to realize the up and down flipping of the material and improve the mixing efficiency. After the mixing is completed, the motor 3 is turned off and the cylinder 14 is started to discharge the mixed material.

[0057] When in use, the main material is put into the mixing barrel 12 from the top according to the proportion, and then the auxiliary material is put into the auxiliary material funnel 8. When stirring, the motor 3 is started, the motor 3 drives the sixth transmission pulley 24 to rotate, the sixth transmission pulley 24 drives the fourth transmission pulley 18 to rotate through the second transmission belt 21, the fourth transmission pulley 18 drives the main stirring frame 15 to rotate through the first transmission rod 17, the main stirring frame 15 stirs and mixes the materials, when the first transmission rod 17 rotates, it drives the second transmission rod 28 to rotate through the second transmission gear 16, the second transmission rod 28 drives the first transmission gear 2 to rotate through the fourth transmission gear 29, the first transmission gear 2 drives the first transmission pulley 4 to rotate, the first transmission pulley 4 drives the third transmission belt through the first transmission belt 5 The wheel 7 rotates, and the quantitative roller 26 rotates at this time. When the opening of the quantitative groove 27 faces upward, the auxiliary material in the auxiliary material funnel 8 falls into the quantitative groove 27. When the opening of the quantitative groove 27 faces the auxiliary material inlet pipe 9, the auxiliary material is transported to the mixing barrel 12 through the auxiliary material inlet pipe 9, so that the auxiliary material is quantitatively dispersed and put into the mixing process, so that the auxiliary material input is more uniform. At the same time, during the rotation of the second transmission rod 28, the second transmission rod 28 drives the fifth transmission pulley 22 to rotate, and the fifth transmission pulley 22 drives the second transmission pulley 6 to rotate through the third transmission belt 23, and the second transmission pulley 6 drives the auxiliary mixing frame 10 to rotate, so as to realize the up and down flipping of the material and improve the mixing efficiency. After the mixing is completed, the motor 3 is turned off and the cylinder 14 is started to discharge the mixed material.

[0058] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. An engineering plastic formula and preparation method, characterized in that: The engineering plastic formula comprises main materials and auxiliary materials; The main materials include polypropylene and resin; The auxiliary materials include masterbatch and calcium carbonate masterbatch.

2. A method for preparing engineering plastics, characterized in that: The following steps are involved: S1: Loading: Load the engineering plastic raw materials according to the formula percentage; S2: Mixing: Use a high-speed mixer to mix the raw materials at high speed for 10-20 minutes; S3: Extrusion after electric heating, the mixed raw materials are heated by an extruder, the heating temperature is: 180-220°C, and then extruded into filaments by a spiral rod; S4: Cooling: The semi-finished product obtained in S3 is transported by a conveying mechanism and cooled and formed using cooling water; S5: Pelletizing: Pelletize the long strip semi-finished product using a pelletizer to obtain a finished product.

3. A method for preparing engineering plastics according to claim 2, characterized in that: The polypropylene adopts T30S and PPK9928H.

4. A method for preparing engineering plastics according to claim 3, characterized in that: The resins used are PA6YH-800 and PA66EPR-27.

5. A method for preparing engineering plastics according to claim 4, characterized in that: The high-speed mixer of step S2 comprises a base (1) and a stirring barrel (12), a motor (3) is arranged on one side of the top of the base (1), the output shaft of the motor (3) is connected to a sixth transmission pulley (24), the other side of the top of the base (1) is fixedly connected to a support (20), the stirring barrel (12) is mounted on the top of the support (20), the top of the base (1) is rotatably connected to a first transmission rod (17), the two ends of the first transmission rod (17) are respectively fixedly connected to a fourth transmission pulley (18) and a main stirring frame (15), the main stirring frame (15) is located inside the stirring barrel (12), and the sixth transmission pulley (24) and the fourth transmission pulley (18) are connected to each other through a second transmission belt (21).

6. A method for preparing engineering plastics according to claim 5, characterized in that: A second transmission rod (28) is rotatably connected to one side of the support (20); two ends of the second transmission rod (28) are respectively fixedly connected to a third transmission gear (19) and a fourth transmission gear (29); a middle portion of the first transmission rod (17) is fixedly connected to a second transmission gear (16); and the third transmission gear (19) is transmission-connected to the support (20).

7. A method for preparing engineering plastics according to claim 6, characterized in that: A bracket (30) is fixedly connected to the middle of the top of the base (1), and a quantitative housing (25) is fixedly connected to the top of the bracket (30). A quantitative roller (26) is rotatably connected inside the quantitative housing (25), and a quantitative groove (27) is provided inside the quantitative roller (26). One end of the quantitative roller (26) is transmission-connected to a third transmission pulley (7), and the top of the quantitative housing (25) is connected to an auxiliary material funnel (8), and the bottom of the quantitative housing (25) is connected to the stirring barrel (12) through an auxiliary material inlet pipe (9).

8. A method for preparing engineering plastics according to claim 7, characterized in that: The bottom end of the bracket (30) is rotatably connected to a first transmission gear (2), the first transmission gear (2) is transmission-connected to a first transmission pulley (4), the first transmission pulley (4) and a third transmission pulley (7) are transmission-connected via a first transmission belt (5), and the first transmission gear (2) is meshingly connected to a fourth transmission gear (29).

9. A method for preparing engineering plastics according to claim 8, characterized in that: A fifth transmission pulley (22) is fixedly connected to the middle of the second transmission rod (28); an auxiliary mixing frame (10) is rotatably connected to one side of the interior of the mixing barrel (12); a second transmission pulley (6) is fixedly connected to one end of the auxiliary mixing frame (10); and the second transmission pulley (6) and the fifth transmission pulley (22) are connected in transmission via a third transmission belt (23).

10. The method for preparing an engineering plastic according to claim 9, characterized in that: A discharge pipe (13) is installed on one side of the bottom end of the mixing barrel (12), a cylinder (14) is installed on the outer side of the discharge pipe (13), and an upper cover (11) is installed on the top end of the mixing barrel (12).

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