CN113024943A - Preparation method of composite polypropylene plastic - Google Patents
Preparation method of composite polypropylene plastic Download PDFInfo
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- CN113024943A CN113024943A CN202110169495.0A CN202110169495A CN113024943A CN 113024943 A CN113024943 A CN 113024943A CN 202110169495 A CN202110169495 A CN 202110169495A CN 113024943 A CN113024943 A CN 113024943A
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- polypropylene plastic
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 48
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 48
- -1 polypropylene Polymers 0.000 title claims abstract description 46
- 239000004033 plastic Substances 0.000 title claims abstract description 41
- 229920003023 plastic Polymers 0.000 title claims abstract description 41
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920006124 polyolefin elastomer Polymers 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 238000004073 vulcanization Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 90
- 238000002156 mixing Methods 0.000 claims description 50
- 238000007599 discharging Methods 0.000 claims description 39
- 238000003756 stirring Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/26—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/802—Constructions or methods for cleaning the mixing or kneading device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a preparation method of composite polypropylene plastic, relating to the technical field of plastic preparation, wherein the composite polypropylene plastic comprises the following components in parts by weight: 70-80 parts of polypropylene resin, 16-22 parts of talcum powder, 16-20 parts of polyolefin elastomer, 1.4-1.6 parts of antioxidant, 12.5-15.5 parts of unsaturated aryl diborate and 6.5-8.5 parts of vulcanization accelerator M.
Description
Technical Field
The invention relates to the technical field of plastic preparation, in particular to a preparation method of composite polypropylene plastic.
Background
Plastics have been widely used because of their advantages such as wide use, good moldability, and low cost. However, the plastic is seriously aged and has single function after long-term use, and the common plastic has poor heat-resistant antibacterial effect, so the development of the functional plastic has huge market prospect.
Polypropylene, PP for short, is a colorless, odorless, nontoxic and semitransparent solid substance. Polypropylene (PP) is a thermoplastic synthetic resin with excellent performance, and is colorless translucent thermoplastic light general-purpose plastic. The polypropylene has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property, good high-wear-resistance processing property and the like, so that the polypropylene can be rapidly and widely developed and applied in a plurality of fields such as machinery, automobiles, electronic and electric appliances, buildings, textiles, packaging, agriculture, forestry, fishery, food industry and the like since the coming out.
When the polypropylene plastic product is used for manufacturing children toys, the problems of poor flame retardance, poor heat resistance, no antibacterial performance, toxic plasticizer and the like of the plastic need to be solved, and meanwhile, a circular feeding structure is not set for an internal mixer for preparing the composite polypropylene plastic, so that the internal mixer is not beneficial to continuous internal mixing.
Therefore, a preparation method of the composite polypropylene plastic is provided to solve the problems.
Disclosure of Invention
The invention aims to provide a preparation method of composite polypropylene plastic, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the composite polypropylene plastic comprises the following components in parts by weight: 70-80 parts of polypropylene resin, 16-22 parts of talcum powder, 16-20 parts of polyolefin elastomer, 1.4-1.6 parts of antioxidant, 12.5-15.5 parts of unsaturated aryldiborate and 6.5-8.5 parts of vulcanization accelerator M.
A preparation method of composite polypropylene plastic comprises the following steps:
step one, mixing polypropylene resin, talcum powder, polyolefin elastomer, antioxidant, unsaturated aryldiborate and vulcanization accelerator M according to the weight part ratio, adding the mixture into a mixing machine, mixing and stirring uniformly, wherein the stirring speed is 500-155 DEG, the mixing temperature is 135-155 ℃, the mixing time is 25-35min, and mixing uniformly to obtain a mixed material;
step two, adding the mixed material into an internal mixer for internal mixing for 35-45min, and then carrying out melt grafting reaction at the temperature of 170-210 ℃ to obtain an intermediate;
and step three, adding the internally mixed intermediate into a double-screw extrusion granulator, plasticizing and granulating at the temperature of 155-165 ℃ to obtain the composite polypropylene plastic.
Based on the formula and the process, the invention also provides a preparation device of the composite polypropylene plastic, which comprises a first box body, a second box body and a second driving motor, wherein the left outer wall and the right outer wall of the first box body are respectively and fixedly connected with the first box body and the second box body, the outer wall of the first box body is fixedly connected with a controller, the inner bottom of the first box body is fixedly provided with the second driving motor, the output end of the second driving motor is fixedly connected with a fifth gear ring, the fifth gear ring is in meshing connection with a fourth gear ring, the side wall of the first box body is rotatably connected with a third rotating shaft through a fixedly connected bearing, the left end of one group of the third rotating shafts is fixedly connected with the fourth gear ring, the bottom of the fourth gear ring is in meshing connection with the top of the fifth gear ring, a banburying roller for banburying is fixedly connected between the third rotating shafts, and the right end of the third rotating shafts is respectively and fixedly connected with the second gear ring and, the rear end of the second gear ring is meshed with the front end of the third gear ring;
the material guide structure is symmetrically and fixedly connected with material guide inclined plates for discharging above the banburying roller;
the material guide structure is fixedly connected with an inclined scraper below the bottom of the mixing roller, and the top of the inclined scraper is attached to the bottom of the mixing roller in a sliding manner;
the bottom of the first box-shaped frame is fixedly connected with a conical barrel, the bottom of the conical barrel is connected with a second box-shaped frame, the second box-shaped frame is connected with a material guiding structure for shunting, the material guiding structure comprises a first rotating shaft, an electric push rod, a material guiding plate, a first mounting frame, a tooth block, an L-shaped plate and a first gear ring, the inner end of the first mounting frame is fixedly connected with the outer wall of the second box-shaped frame, the electric push rod is fixedly connected in a transverse hole of the first mounting frame, the telescopic end of the electric push rod is fixedly connected with the L-shaped plate, the tooth block is uniformly and fixedly connected to the bottom of the transverse part of the L-shaped plate, the L-shaped plate is connected with the first gear ring through meshing of the tooth block, the first rotating shaft is fixedly connected in a middle hole of the first gear ring, the material guiding plate is fixedly connected to the inner end of the first rotating;
the front end of the bottom of the second square frame is fixedly connected with a second discharging barrel, the second square frame is provided with a circulating structure for material circulation at the rear side of the second discharging barrel, the circulating structure comprises a discharging hole, an inclined push plate, an oval cylinder, a U-shaped guide plate, a second mounting frame, a first driving motor, a first discharging barrel, a second rotating shaft, a belt pulley, a feeding hole and a belt, the top of the first discharging barrel is fixedly connected with the bottom of the second square frame, the bottom of the side wall of the oval cylinder is fixedly connected with the second mounting frame, the second mounting frame is fixedly connected with the first driving motor, the upper and lower parts of the front side wall of the oval cylinder are respectively provided with the discharging hole and the feeding hole, the bottom of the first discharging barrel is fixedly connected with the feeding hole, and the upper and lower ends of the inner wall of the oval cylinder are rotatably connected with the second rotating shaft through fixedly connected bearings, the lower extreme the second pivot is connected with first driving motor's output fixed connection, the even fixedly connected with belt pulley of second pivot, the even fixedly connected with inclined push plate of outer wall of belt pulley, the oval drum is at discharge gate fixedly connected with U-shaped baffle, U-shaped baffle and guide swash plate and first time style of calligraphy frame fixed connection.
Further, the second ring gear and the third ring gear rotate within the second case.
Furthermore, the outer ends of the second box body and the first box body are fixedly connected with the box body through bolts.
Furthermore, the second frame is engaged with the first rotating shaft through a fixedly connected shaft.
Furthermore, the top bevel edge state of the material guide plate is in contact with the inner wall of the second frame.
Further, the second discharging barrel has the same size as the first discharging barrel.
Furthermore, the oblique push plate is obliquely arranged, and the bottom of the outer end of the oblique push plate and the inner end of the oblique push plate are arranged when the outer end of the oblique push plate is in contact with the front inner wall of the oval cylinder.
Furthermore, the U-shaped guide plate is obliquely arranged, and the inclined angles of the U-shaped guide plate and the material guide inclined plate at the rear end are consistent.
The invention has the beneficial effects that:
1. according to the invention, the L-shaped plate is driven to move by the electric push rod of the material guide structure, the first rotating shaft is driven to move by the L-shaped plate through the tooth block, the material guide plate is driven to move by the first rotating shaft, when the material guide plate rotates to the top of the first discharging barrel, the material on the material guide plate is discharged from the second discharging barrel, so that the material is conveniently discharged, and when the material guide plate rotates to the top of the second discharging barrel, the material on the material guide plate enters the first discharging barrel, so that the material is conveniently introduced into the oval cylinder, and the material is conveniently guided;
2. according to the invention, materials enter the oval cylinder through the first discharge barrel of the circulating structure, the first driving motor drives the second rotating shaft to rotate, the second rotating shaft drives the belt pulley to rotate, the belt pulley drives the belt to rotate, the belt drives the inclined push plate to move, the inclined push plate moves to the discharge hole through the materials in the oval cylinder and slides into the U-shaped guide plate through self gravity, and finally enters the top of the banburying roller through the material guide inclined plate to be banburied again, so that the device is convenient for circularly banburying the materials, the banburying machine is beneficial to continuously banburying, manual operation is not needed, and the working pressure is reduced;
3. according to the invention, two groups of inclined scrapers are arranged at the bottom of the mixing roller, when the mixing roller rotates, the inclined scrapers slide on the outer wall of the mixing roller, and the inclined scrapers clean the mixing roller, so that the cleanliness of the mixing roller is ensured, and the mixing roller is beneficial to mixing;
4. the invention takes the polypropylene resin, the talcum powder, the polyolefin elastomer, the antioxidant, the unsaturated aryldiboronic acid ester and the vulcanization accelerator M as the raw materials for preparing the composite polypropylene plastic, the prepared composite polypropylene plastic has good flame retardance, strong heat resistance, excellent antibacterial performance and reduced toxic plasticizers, and meanwhile, the preparation method is simple and is beneficial to production.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a preparation method of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a left side view of the structure of the present invention;
FIG. 4 is a right top view of the inventive structure;
FIG. 5 is a right side sectional view of the structure of the present invention;
FIG. 6 is a front cross-sectional view of the structure of the present invention;
FIG. 7 is a right side view of the middle structural view of the structure of the present invention;
FIG. 8 is an enlarged view of the structure at A of FIG. 3 according to the present invention;
FIG. 9 is an enlarged view of the structure at B of FIG. 7 according to the present invention;
FIG. 10 is an enlarged view of the structure of FIG. 7 at C according to the present invention;
FIG. 11 is an enlarged view of the structure of FIG. 7 at D in accordance with the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a first box body 2, a first box body 3, a controller 4, a material guiding structure 401, a first rotating shaft 402, an electric push rod 403, a material guiding plate 404, a first mounting frame 405, a toothed block 406, an L-shaped plate 407, a first gear ring 5, a circulating structure 501, a discharge hole 502, an inclined push plate 503, an elliptical cylinder 504, a U-shaped guide plate 505, a second mounting frame 506, a first driving motor 507, a first discharge barrel 508, a second rotating shaft 509, a belt pulley 510, a feed hole 511, a belt 6, a second box body 7, a box body 8, a conical barrel 9, a second box body 10, a second discharge barrel 11, a material guiding inclined plate 12, an internal mixing roller 13, a second gear ring 14, a third rotating shaft 15, a third gear ring 16, a fourth gear ring 17, a fifth gear ring 18, a second driving motor 19 and an inclined scraper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1, the composite polypropylene plastic comprises the following components in parts by weight: 70-80 parts of polypropylene resin, 16-22 parts of talcum powder, 16-20 parts of polyolefin elastomer, 1.4-1.6 parts of antioxidant, 12.5-15.5 parts of unsaturated aryldiborate and 6.5-8.5 parts of vulcanization accelerator M.
A preparation method of composite polypropylene plastic comprises the following steps:
step one, mixing polypropylene resin, talcum powder, polyolefin elastomer, antioxidant, unsaturated aryldiborate and vulcanization accelerator M according to the weight part ratio, adding the mixture into a mixing machine, mixing and stirring uniformly, wherein the stirring speed is 500-155 DEG, the mixing temperature is 135-155 ℃, the mixing time is 25-35min, and mixing uniformly to obtain a mixed material;
step two, adding the mixed material into an internal mixer for internal mixing for 35-45min, and then carrying out melt grafting reaction at the temperature of 170-210 ℃ to obtain an intermediate;
step three, adding the internally mixed intermediate into a double-screw extrusion granulator, and plasticizing and granulating at the temperature of 155-165 ℃ to obtain the composite polypropylene plastic;
the polypropylene resin, the talcum powder, the polyolefin elastomer, the antioxidant, the unsaturated aryldiborate and the vulcanization accelerator M are used as raw materials for preparing the composite polypropylene plastic, the prepared composite polypropylene plastic has good flame retardance, strong heat resistance and excellent antibacterial performance, toxic plasticizers are reduced, and meanwhile, the preparation method is simple and is beneficial to production.
Example 2
Example 2 is a further modification to example 1.
Based on the formula and the process, the invention also provides a preparation device of the composite polypropylene plastic as shown in figures 2, 3, 4, 5, 6, 8 and 9, which comprises a first box body 1, a first box body 2 and a second driving motor 18, wherein the left and right outer walls of the first box body 1 are respectively and fixedly connected with the first box body 2 and the second box body 6, the outer wall of the first box body 2 is fixedly connected with a controller 3, the inner bottom of the first box body 2 is fixedly provided with the second driving motor 18, the output end of the second driving motor 18 is fixedly connected with a fifth gear ring 17, the fifth gear ring 17 is meshed and connected with a fourth gear ring 16, the side wall of the first box body 1 is rotatably connected with a third rotating shaft 14 through a fixedly connected bearing, the left end of one group of the third rotating shafts 14 is fixedly connected with the fourth gear ring 16, the bottom of the fourth gear ring 16 is meshed and connected with the top of the fifth gear ring 17, a banburying roller 12 for banburying is fixedly connected between the third rotating, the right end of the third rotating shaft 14 is fixedly connected with a second gear ring 13 and a third gear ring 15 respectively, the second gear ring 13 and the third gear ring 15 rotate in the second box body 6, the rear end of the second gear ring 13 is meshed with the front end of the third gear ring 15, and the outer ends of the second box body 6 and the first box body 2 are fixedly connected with the box body 7 through bolts;
the material guide structure 4 is symmetrically and fixedly connected with material guide sloping plates 11 used for blanking above the banburying roller 12;
the material guide structure 4 is fixedly connected with an inclined scraper 19 below the bottom of the mixing roller 12, the top of the inclined scraper 19 is in fit sliding connection with the bottom of the mixing roller 12, two groups of inclined scrapers 19 are arranged at the bottom of the mixing roller 12, the inclined scrapers 19 slide on the outer wall of the mixing roller 12 when the mixing roller 12 rotates, and the inclined scrapers 19 clean the mixing roller 12, so that the cleanliness of the mixing roller 12 is ensured, and the mixing roller 12 is favorably mixed;
the bottom of the first box-returning frame 1 is fixedly connected with a conical barrel 8, the bottom of the conical barrel 8 is connected with a second box-returning frame 9, the second box-returning frame 9 is connected with a material guiding structure 4 for shunting, the material guiding structure 4 comprises a first rotating shaft 401, an electric push rod 402, a material guiding plate 403, a first mounting frame 404, a tooth block 405, an L-shaped plate 406 and a first gear ring 407, the inner end of the first mounting frame 404 is fixedly connected with the outer wall of the second box-returning frame 9, the electric push rod 402 is fixedly connected in a transverse hole of the first mounting frame 404, the L-shaped plate 406 is fixedly connected with an expansion end of the electric push rod 402, the tooth block 405 is uniformly and fixedly connected with the bottom of the transverse part of the L-shaped plate 406, the L-shaped plate 406 is connected with the first gear ring 407 through the tooth block 405 in a meshing manner, the first rotating shaft 401 is fixedly connected in a middle hole of the first gear ring 407, the material guiding plate 403 is, the top bevel edge state of the material guide plate 403, the top bevel edge state of the material guide plate 403 is in contact with the inner wall of the second frame 9, the second frame 9 is engaged with the first rotating shaft 401 through a fixedly connected shaft, the electric push rod 402 of the material guide structure 4 drives the L-shaped plate 406 to move, the L-shaped plate 406 drives the first rotating shaft 401 to move through the tooth block 405, the first rotating shaft 401 drives the material guide plate 403 to move, when the material guide plate 403 rotates to the top of the first discharging barrel 507, the material on the material guide plate 403 is discharged from the second discharging barrel 10, so that the material is conveniently discharged, when the material guide plate 403 rotates to the top of the second discharging barrel 10, the material on the material guide plate enters the first discharging barrel 507, so that the material conveniently enters the elliptical barrel 503, and the material is conveniently guided;
example 3
Example 3 is a further modification to example 1.
As shown in fig. 2, 3, 7, 10, and 11, a second discharging barrel 10 is fixedly connected to the front end of the bottom of the second square frame 9, a circulating structure 5 for material circulation is disposed on the rear side of the second discharging barrel 10 of the second square frame 9, the circulating structure 5 includes a discharging hole 501, an inclined pushing plate 502, an elliptical cylinder 503, a U-shaped guide plate 504, a second mounting bracket 505, a first driving motor 506, a first discharging barrel 507, a second rotating shaft 508, a belt pulley 509, a feeding hole 510, and a belt 511, the top of the first discharging barrel 507 is fixedly connected to the bottom of the second square frame 9, the bottom of the sidewall of the elliptical cylinder 503 is fixedly connected to the second mounting bracket 505, the second mounting bracket 505 is fixedly connected to the first driving motor 506, the upper and lower sides of the front sidewall of the elliptical cylinder 503 are respectively provided with the discharging hole 501 and the feeding hole 510, the bottom of the first discharging barrel 507 is fixedly connected to the feeding hole 510, the upper and lower sides of the inner wall of the elliptical cylinder 503 are rotatably connected to a second, a second rotating shaft 508 at the lower end is fixedly connected with the output end of a first driving motor 506, a belt pulley 509 is uniformly and fixedly connected with the second rotating shaft 508, an inclined push plate 502 is uniformly and fixedly connected with the outer wall of the belt pulley 509, a U-shaped guide plate 504 is fixedly connected with the discharge hole 501 of the oval cylinder 503, the U-shaped guide plate 504 is fixedly connected with a material guide inclined plate 11 and a first letter box 1, the size of the second discharge cylinder 10 is the same as that of the first discharge cylinder 507, the inclined push plate 502 is obliquely arranged, the bottom of the outer end of the inclined push plate 502 is arranged at the inner end of the inclined push plate 502 when the outer end of the inclined push plate 502 is contacted with the front inner wall of the oval cylinder 503, the U-shaped guide plate 504 is obliquely arranged, the inclined angles of the guide inclined push plate 11 at the U-shaped guide plate 504 and the rear end are the same, materials enter the oval cylinder 503 through the first discharge cylinder 507 of the circulating structure 5, the first driving motor 506, belt pulley 509 drives belt 511 and rotates, and belt 511 drives oblique push pedal 502 and removes, and oblique push pedal 502 removes to discharge opening 501 department through the material in the oval drum 503, and the gravity of rethread self slides in U-shaped baffle 504, and the top that gets into banburying roller 12 through guide swash plate 11 at last carries out banburying once more, and the device is convenient to carry out the circulation banburying to the material, does benefit to the banbury mixer and carries out banburying in succession, need not manual operation, has reduced operating pressure.
When the material feeding device is used, a material is placed in the first box 1, the controller 3 starts the second driving motor 18, the second driving motor 18 drives the fifth gear ring 17 to rotate, the fifth gear ring 17 drives the fourth gear ring 16 to rotate, the fourth gear ring 16 drives the third rotating shaft 14 to rotate, the second gear ring 13 and the third gear ring 15 drive the banburying roller 12, the banburying roller 12 banburies the material, the electric push rod 402 of the material guiding structure 4 drives the L-shaped plate 406 to move, the L-shaped plate 406 drives the first rotating shaft 401 to move through the tooth block 405, the first rotating shaft 401 drives the material guiding plate 403 to move, when the material guiding plate 403 rotates to the top of the second discharging cylinder 10, the material on the material guiding plate enters the first discharging cylinder 507, the material conveniently enters the elliptical cylinder 503, the material is conveniently guided, the material enters the elliptical cylinder 503 through the first discharging cylinder 507 of the circulating structure 5, the first driving motor 506 drives the second rotating shaft 508 to rotate, the second rotating shaft 508 drives the belt pulley 509 to rotate, the belt pulley 509 drives the belt 511 to rotate, the belt 511 drives the inclined pushing plate 502 to move, the inclined pushing plate 502 moves to the discharge hole 501 through the material in the oval cylinder 503, then slides into the U-shaped guide plate 504 through the self gravity, and finally enters the top of the banburying roller 12 through the guide inclined plate 11 to be banburied again, the device is convenient for circularly banburying the material, the banburying machine is beneficial to continuously banburying, manual operation is not needed, and the working pressure is reduced; when the mixing roller 12 rotates, two groups of inclined scrapers 19 are arranged at the bottom of the mixing roller 12, when the mixing roller 12 rotates, the inclined scrapers 19 slide on the outer wall of the mixing roller 12, the inclined scrapers 19 clean the mixing roller 12, the cleanliness of the mixing roller 12 is ensured, the mixing roller 12 is beneficial to mixing,
when banburying is finished, when the material guide plate 403 rotates to the top of the first discharging barrel 507, the material on the material guide plate 403 is discharged from the second discharging barrel 10, so that the material is conveniently discharged.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A composite polypropylene plastic is characterized in that: the composite polypropylene plastic comprises the following components in parts by weight: 70-80 parts of polypropylene resin, 16-22 parts of talcum powder, 16-20 parts of polyolefin elastomer, 1.4-1.6 parts of antioxidant, 12.5-15.5 parts of unsaturated aryldiborate and 6.5-8.5 parts of vulcanization accelerator M.
2. The preparation method of the composite polypropylene plastic as claimed in claim 1, wherein the preparation method comprises the following steps: the preparation method comprises the following steps:
step one, mixing polypropylene resin, talcum powder, polyolefin elastomer, antioxidant, unsaturated aryldiborate and vulcanization accelerator M according to the weight part ratio, adding the mixture into a mixing machine, mixing and stirring uniformly, wherein the stirring speed is 500-155 DEG, the mixing temperature is 135-155 ℃, the mixing time is 25-35min, and mixing uniformly to obtain a mixed material;
step two, adding the mixed material into an internal mixer for internal mixing for 35-45min, and then carrying out melt grafting reaction at the temperature of 170-210 ℃ to obtain an intermediate;
and step three, adding the internally mixed intermediate into a double-screw extrusion granulator, plasticizing and granulating at the temperature of 155-165 ℃ to obtain the composite polypropylene plastic.
3. The preparation device of composite polypropylene plastic according to claim 1, comprising a first box (1), a first box (2) and a second driving motor (18), wherein: the left outer wall and the right outer wall of the first box body (1) are fixedly connected with a first box body (2) and a second box body (6) respectively, the outer wall of the first box body (2) is fixedly connected with a controller (3), the inner bottom of the first box body (2) is fixedly provided with a second driving motor (18), the output end of the second driving motor (18) is fixedly connected with a fifth gear ring (17), the fifth gear ring (17) is connected with a fourth gear ring (16) in a meshing manner, the side wall of the first box body (1) is rotatably connected with a third rotating shaft (14) through a fixedly connected bearing, the left end of one group of the third rotating shaft (14) is fixedly connected with the fourth gear ring (16), the bottom of the fourth gear ring (16) is connected with the top of the fifth gear ring (17) in a meshing manner, and an internal mixing roller (12) for internal mixing is fixedly connected between the third rotating shafts (14), the right end of the third rotating shaft (14) is fixedly connected with a second gear ring (13) and a third gear ring (15) respectively, and the rear end of the second gear ring (13) is meshed with the front end of the third gear ring (15);
the material guide structure (4) is symmetrically and fixedly connected with material guide inclined plates (11) used for discharging above the banburying roller (12);
an inclined scraper (19) is fixedly connected to the material guide structure (4) below the bottom of the banburying roller (12), and the top of the inclined scraper (19) is attached to the bottom of the banburying roller (12) in a sliding manner;
the bottom of the first character-returning frame (1) is fixedly connected with a conical barrel (8), the bottom of the conical barrel (8) is connected with a second character-returning frame (9), the second character-returning frame (9) is connected with a material guiding structure (4) for shunting, the material guiding structure (4) comprises a first rotating shaft (401), an electric push rod (402), a material guiding plate (403), a first mounting frame (404), a tooth block (405), an L-shaped plate (406) and a first gear ring (407), the inner end of the first mounting frame (404) is fixedly connected with the outer wall of the second character-returning frame (9), the electric push rod (402) is fixedly connected into a transverse hole of the first mounting frame (404), the L-shaped plate (406) is fixedly connected with the telescopic end of the electric push rod (402), the tooth block (405) is uniformly and fixedly connected with the bottom of the transverse part of the L-shaped plate (406), and the L-shaped plate (406) is engaged with the first gear ring (407) through the tooth block, a first rotating shaft (401) is fixedly connected in a middle hole of the first gear ring (407), a material guide plate (403) is fixedly connected at the inner end of the first rotating shaft (401), and the material guide plate (403) is in contact with the side wall of the second frame (9);
the front end of the bottom of the second square frame (9) is fixedly connected with a second discharging barrel (10), the second square frame (9) is provided with a circulating structure (5) for material circulation at the rear side of the second discharging barrel (10), the circulating structure (5) comprises a discharging hole (501), an inclined push plate (502), an oval cylinder (503), a U-shaped guide plate (504), a second mounting frame (505), a first driving motor (506), a first discharging barrel (507), a second rotating shaft (508), a belt pulley (509), a feeding hole (510) and a belt (511), the top of the first discharging barrel (507) is fixedly connected with the bottom of the second square frame (9), the bottom of the side wall of the oval cylinder (503) is fixedly connected with a second mounting frame (505), the second mounting frame (505) is fixedly connected with a first driving motor (506), the discharging hole (501) and the feeding hole (510) are respectively formed in the upper portion and the lower portion of the front side wall of the oval cylinder (503), the bottom and the feed port (510) fixed connection of first play feed cylinder (507), both ends rotate through fixed connection's bearing about oval drum (503) inner wall and are connected with second pivot (508), the lower extreme second pivot (508) and the output fixed connection of first driving motor (506), the even fixedly connected with belt pulley (509) of second pivot (508), the even fixedly connected with inclined push pedal (502) of outer wall of belt pulley (509), oval drum (503) locate fixedly connected with U-shaped baffle (504) in discharge port (501), U-shaped baffle (504) and guide swash plate (11) and first time word frame (1) fixed connection.
4. The device for preparing the composite polypropylene plastic according to claim 3, wherein: the second gear ring (13) and the third gear ring (15) rotate in the second box body (6).
5. The device for preparing the composite polypropylene plastic according to claim 3, wherein: the outer ends of the second box body (6) and the first box body (2) are fixedly connected with a box body (7) through bolts.
6. The device for preparing the composite polypropylene plastic according to claim 3, wherein: the second frame (9) is engaged with the first rotating shaft (401) through a fixedly connected shaft.
7. The device for preparing the composite polypropylene plastic according to claim 6, wherein: the top bevel edge state of the material guide plate (403), and the top bevel edge state of the material guide plate (403) is in contact with the inner wall of the second frame (9).
8. The device for preparing the composite polypropylene plastic according to claim 3, wherein: the size of the second discharging barrel (10) is the same as that of the first discharging barrel (507).
9. The apparatus for preparing composite polypropylene plastic according to claim 8, wherein: the inclined push plate (502) is obliquely arranged, and when the outer end of the inclined push plate (502) is contacted with the front inner wall of the oval cylinder (503), the bottom of the outer end of the inclined push plate (502) and the inner end of the inclined push plate (502) are arranged.
10. The apparatus for preparing composite polypropylene plastic according to claim 9, wherein: the U-shaped guide plate (504) is obliquely arranged, and the oblique angles of the U-shaped guide plate (504) and the material guide sloping plate (11) at the rear end are consistent.
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| CN202110169495.0A CN113024943A (en) | 2021-02-07 | 2021-02-07 | Preparation method of composite polypropylene plastic |
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