CN112898683A - Wear-resistant non-toxic modified plastic and production process thereof - Google Patents
Wear-resistant non-toxic modified plastic and production process thereof Download PDFInfo
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- CN112898683A CN112898683A CN202110288885.XA CN202110288885A CN112898683A CN 112898683 A CN112898683 A CN 112898683A CN 202110288885 A CN202110288885 A CN 202110288885A CN 112898683 A CN112898683 A CN 112898683A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 52
- 239000004033 plastic Substances 0.000 title claims abstract description 52
- 231100000252 nontoxic Toxicity 0.000 title claims abstract description 37
- 230000003000 nontoxic effect Effects 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 43
- 238000002156 mixing Methods 0.000 claims abstract description 39
- 239000004615 ingredient Substances 0.000 claims abstract description 28
- -1 polypropylene Polymers 0.000 claims abstract description 22
- 239000000314 lubricant Substances 0.000 claims abstract description 21
- 239000007822 coupling agent Substances 0.000 claims abstract description 19
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- 239000003365 glass fiber Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004743 Polypropylene Substances 0.000 claims abstract description 12
- 229920001155 polypropylene Polymers 0.000 claims abstract description 12
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 12
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 12
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 10
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims description 68
- 239000002245 particle Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004073 vulcanization Methods 0.000 claims description 9
- 206010006514 bruxism Diseases 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920003192 poly(bis maleimide) Polymers 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000001802 infusion Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000011344 liquid material Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 description 9
- 230000001502 supplementing effect Effects 0.000 description 4
- 238000013329 compounding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid 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
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- 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
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal 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 provides a wear-resistant non-toxic modified plastic and a production process thereof, which comprises ingredients for preparing the wear-resistant non-toxic modified plastic and a multi-ingredient mixing device for mixing various ingredients, and is characterized in that: the wear-resistant non-toxic modified plastic comprises polypropylene, polyvinyl chloride, a coupling agent, glass fiber, carbon fiber, a lubricant, polytetrafluoroethylene and low-density polyethylene, and relates to the field of plastic processing. According to the wear-resistant non-toxic modified plastic and the production process thereof, a special processing device and a processing process which can fully mix materials are designed according to the problems of uneven solid-liquid mixing and non-uniform overall performance of the existing wear-resistant non-toxic modified plastic, and the problems that liquid materials are difficult to fully and uniformly distribute and the thermal property, the wear resistance and other properties of a finished product are greatly influenced when the common wear-resistant non-toxic modified plastic is processed are solved.
Description
Technical Field
The invention relates to the technical field of plastic processing, in particular to wear-resistant non-toxic modified plastic and a production process thereof.
Background
At present, various materials needing to be added are mixed and ground synchronously in the production steps of the wear-resistant non-toxic modified plastic, and although the finished product prepared also has wear resistance, toughness and thermal properties, because some liquid adding materials such as a coupling agent and a lubricant are added together during mixing, the flow of liquid cannot be well blended into the material, and the liquid is not uniformly distributed in the material at last, and a small amount of liquid and a large amount of solid are mixed and are difficult to be uniformly distributed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a wear-resistant non-toxic modified plastic and a production process thereof, and solves the problems that liquid materials are difficult to be fully and uniformly distributed during the processing of the common wear-resistant non-toxic modified plastic, and the thermal property, the wear resistance and other properties of a finished product are very influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the wear-resistant non-toxic modified plastic comprises ingredients for preparing the wear-resistant non-toxic modified plastic and a multi-ingredient mixing device for mixing various ingredients, and is characterized in that: the wear-resistant nontoxic modified plastic comprises polypropylene, polyvinyl chloride, a coupling agent, glass fiber, carbon fiber, a lubricant, polytetrafluoroethylene and low-density polyethylene;
the production process of the wear-resistant nontoxic modified plastic comprises the following steps:
s1: weighing: 30% of polypropylene, 24% of polyvinyl chloride, 0.8% of coupling agent, 20% of glass fiber, 12.8% of carbon fiber, 0.4% of lubricant, 8% of polytetrafluoroethylene and 4% of low-density polyethylene are weighed.
S2: mixing and grinding: the coupling agent and the lubricant are sequentially placed inside the multi-ingredient mixing device, the multi-ingredient mixing device is started to preheat for three minutes, then the polypropylene, the polyvinyl chloride, the glass fiber, the polytetrafluoroethylene, the carbon fiber and the low-density polyethylene are sequentially fed, and then the ingredients are mixed and ground.
S3: extruding: the mixed material obtained in S2 was extruded in a twin-screw extruder at a temperature of 200 ℃ to 220 ℃.
S4: and (3) cooling and drying: and (3) the temperature of the plastic obtained in the step (S3) is between 150 ℃ and 160 ℃, the finished product is placed in a cooling box, the cooling temperature is 80 ℃, cooling is carried out for 1 hour without wind, natural wind dried by activated carbon is introduced after 1 hour, and wind force is blown against the surface of the plastic for 45 minutes.
S5, cutting and screening: and (4) cutting the plastic obtained in the step (S4) into particles with the particle size of 3mm by using a granulator, and screening by using a screen to obtain plastic particles with uniform particles.
S6: and (3) vulcanization treatment: and (3) putting the particles obtained in the step S5 into a vulcanizing machine for vulcanization at the vulcanization temperature of 260 ℃ and 300 ℃, under the pressure of 15-18MPa and for 10 minutes to obtain the finished wear-resistant non-toxic modified plastic.
Preferably, the glass fiber and the carbon fiber have a length of less than 5mm and are treated with bismaleimide, the coupling agent is a silane coupling agent, and the lubricant is stearic acid.
Preferably, the multi-ingredient mixing device comprises a box body, supporting legs, a motor, a rotating shaft, a grinding hopper, a grinding head, two hollow rings and a mixing rod, wherein the supporting legs are fixedly connected to the bottom of the box body, the motor is fixedly installed at the bottom of the box body, an output shaft of the motor is fixedly connected with the rotating shaft through a coupler, one end of the rotating shaft penetrates through and extends into the box body, the grinding hopper is fixedly connected to the inside of the box body, the grinding head is fixedly connected to the surface of the rotating shaft, a supporting rod is fixedly connected to the inner wall of the box body, one end, far away from the inner wall of the box body, of the supporting rod is fixedly connected with a vertical rod, the two hollow rings are vertically distributed and fixedly connected to the surface of the vertical rod, the hollow rings are sleeved on the rotating shaft, two friction rings corresponding to the hollow rings are, the surface of the rotating shaft is fixedly connected with a mixing rod, and the surface of the friction ring is provided with a liquid supplementing hole.
Preferably, a plurality of grinding grooves are formed in the surface of the grinding hopper, a bearing is arranged on the surface of the rotating shaft, a butt-joint ring is fixedly connected to the surface of the bearing, a butt-joint rod is fixedly connected to the surface of the butt-joint ring, the surface of the butt-joint rod is fixedly connected to the surface of the grinding hopper, a gap is formed between the butt-joint ring and the grinding hopper, the inner wall of each grinding groove is gradually shallow from the inner wall of the box body to one side of the butt-joint ring, a communicating groove is formed in the surface of the grinding hopper, and the communicating grooves are communicated with the grinding grooves.
Preferably, the lower surface of the grinding head is inclined, a gap between the lower surface of the grinding head and the grinding hopper is gradually reduced, the lower surface of the grinding head is fixedly connected with grinding teeth, the grinding teeth are gradually reduced from top to bottom, and the lower surface of the grinding head is fixedly connected with a grinding plate.
Preferably, the inner wall of the box body is fixedly connected with an inclined screen, the surface of the inclined screen is fixedly connected with a bearing, and an inner ring of the bearing on the inclined screen is fixedly connected with the surface of the rotating shaft.
Preferably, the inner wall of the box body is fixedly connected with a material lifting body, the inner wall of the material lifting body is arc-shaped, the surface of the material mixing rod is spiral, the bottom of the material mixing rod is slidably connected with the inner wall of the material lifting body, the top of the box body is provided with a plurality of feed inlets corresponding to the grinding grooves, the surface of the box body is hinged with a sealing baffle plate, the surface of the sealing baffle plate is fixedly provided with a buckle lock, and the surface of the sealing baffle plate is fixedly connected with the surface of the box body through the buckle lock.
(III) advantageous effects
(1) The lubricant, the polypropylene, the polyvinyl chloride and other materials are added, so that the wear resistance and the thermal property of the plastic can be greatly improved, and the plastic has good toughness, tensile resistance and tearing resistance, and is environment-friendly and nontoxic.
(2) According to the invention, by arranging the multi-ingredient mixing device, each ingredient can be separately added and ground in a grading manner, the crushed materials are preliminarily mixed during grinding, and the coupling agent and the lubricant which are evaporated and vaporized are fully and uniformly contacted with the crushed and mixed materials, so that the performances of wear resistance, lubricity and the like of the wear-resistant nontoxic modified plastic are further enhanced.
(3) According to the invention, by arranging the material extracting body and the material mixing rod, ground and mixed materials can be continuously and circularly extracted, and the materials can be continuously thrown along the parabola direction when being lifted, so that the materials are further fully contacted and mixed with the vaporized coupling agent and the lubricant.
(4) According to the invention, a special processing device and a processing technology which can fully mix materials are designed according to the problems of uneven solid-liquid mixing and non-uniform overall performance of the existing wear-resistant non-toxic modified plastic, so that the problems that the liquid materials are difficult to fully and uniformly distribute and the thermal property, the wear resistance and other properties of a finished product are greatly influenced when the common wear-resistant non-toxic modified plastic is processed are solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the structure of the case of the present invention;
FIG. 3 is a sectional view of the structure of the case of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a top view of the grinding hopper structure of the present invention;
FIG. 6 is a cross-sectional view of the hollow ring structure of the present invention.
The grinding device comprises a box body 1, supporting legs 2, a motor 3, a rotating shaft 4, a grinding hopper 5, a grinding head 6, a hollow ring 7, a mixing rod 8, a supporting rod 9, a vertical rod 10, a friction ring 11, a grinding groove 12, a butt joint ring 13, a butt joint rod 14, a communication groove 15, grinding teeth 16, a grinding plate 17, an inclined screen 18, a material extracting body 19, a material inlet 20, a sealing baffle 21, a snap 22 and a liquid supplementing hole 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings 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.
As shown in fig. 1 to 6, the embodiment of the present invention provides a wear-resistant non-toxic modified plastic and a production process thereof, including ingredients for producing the wear-resistant non-toxic modified plastic and a multi-ingredient mixing device for mixing various ingredients, wherein: the wear-resistant nontoxic modified plastic comprises polypropylene, polyvinyl chloride, a coupling agent, glass fiber, carbon fiber, a lubricant, polytetrafluoroethylene and low-density polyethylene;
the production process of the wear-resistant nontoxic modified plastic comprises the following steps:
s1: weighing: 30% of polypropylene, 24% of polyvinyl chloride, 0.8% of coupling agent, 20% of glass fiber, 12.8% of carbon fiber, 0.4% of lubricant, 8% of polytetrafluoroethylene and 4% of low-density polyethylene are weighed.
S2: mixing and grinding: the coupling agent and the lubricant are sequentially placed inside the multi-ingredient mixing device, the multi-ingredient mixing device is started to preheat for three minutes, then the polypropylene, the polyvinyl chloride, the glass fiber, the polytetrafluoroethylene, the carbon fiber and the low-density polyethylene are sequentially fed, and then the ingredients are mixed and ground.
S3: extruding: the mixed material obtained in S2 was extruded in a twin-screw extruder at a temperature of 200 ℃ to 220 ℃.
S4: and (3) cooling and drying: and (3) the temperature of the plastic obtained in the step (S3) is between 150 ℃ and 160 ℃, the finished product is placed in a cooling box, the cooling temperature is 80 ℃, cooling is carried out for 1 hour without wind, natural wind dried by activated carbon is introduced after 1 hour, and wind force is blown against the surface of the plastic for 45 minutes.
S5, cutting and screening: and (4) cutting the plastic obtained in the step (S4) into particles with the particle size of 3mm by using a granulator, and screening by using a screen to obtain plastic particles with uniform particles.
S6: and (3) vulcanization treatment: and (3) putting the particles obtained in the step S5 into a vulcanizing machine for vulcanization at the vulcanization temperature of 260 ℃ and 300 ℃, under the pressure of 15-18MPa and for 10 minutes to obtain the finished wear-resistant non-toxic modified plastic.
The length of the glass fiber and the carbon fiber is less than 5mm, and the glass fiber and the carbon fiber are treated by bismaleimide, the coupling agent is a silane coupling agent, and the lubricant is stearic acid.
The multi-ingredient mixing device comprises a box body 1, supporting legs 2, a motor 3, a rotating shaft 4, a grinding hopper 5, a grinding head 6, two hollow rings 7 and a mixing rod 8, wherein the bottom of the box body 1 is fixedly connected with the supporting legs 2, the motor 3 is fixedly arranged at the bottom of the box body 1, an output shaft of the motor 3 is fixedly connected with the rotating shaft 4 through a coupler, one end of the rotating shaft 4 penetrates through and extends into the box body 1, the grinding hopper 5 is fixedly connected inside the box body 1, the grinding head 6 is fixedly connected to the surface of the rotating shaft 4, a supporting rod 9 is fixedly connected to the inner wall of the box body 1, a vertical rod 10 is fixedly connected to one end, far away from the inner wall of the box body 1, of the vertical rod 10 is fixedly connected with the two hollow rings 7 which are distributed up and down, the hollow rings 7 are sleeved on the rotating shaft 4, two friction rings 11 corresponding to, the surface of the rotating shaft 4 is fixedly connected with a mixing rod 8, and the surface of the friction ring 11 is provided with a liquid supplementing hole 23.
The surface of the grinding bucket 5 is provided with a plurality of grinding grooves 12, the surface of the rotating shaft 4 is provided with a bearing, the surface of the bearing is fixedly connected with a butt joint ring 13, the surface of the butt joint ring 13 is fixedly connected with a butt joint rod 14, the surface of the butt joint rod 14 is fixedly connected with the surface of the grinding bucket 5, a gap is arranged between the butt joint ring 13 and the grinding bucket 5, the inner wall of the grinding groove 12 is gradually shallow from the inner wall of the box body 1 to one side of the butt joint ring 13, the surface of the grinding bucket 5 is provided with a communicating groove 15, the communicating groove 15 is communicated with each grinding groove 12, the lower surface of the grinding head 6 is in an inclined shape, the gap between the lower surface of the grinding head 6 and the grinding bucket 5 is gradually reduced, the lower surface of the grinding head 6 is fixedly connected with grinding teeth 16, the grinding teeth 16 are gradually reduced from top to bottom, the lower, the surface of the inclined screen 18 is fixedly connected with a bearing, and the inner ring of the bearing on the inclined screen 18 is fixedly connected with the surface of the rotating shaft 4.
The inner wall fixedly connected with of box 1 carries the material body 19, the inner wall of carrying the material body 19 is the arc form, the surface of compounding pole 8 is the heliciform, the bottom of compounding pole 8 and the inner wall sliding connection who carries the material body 19, a plurality of and the corresponding feed inlet 20 of grinding groove 12 have been seted up at the top of box 1, the surface of box 1 articulates there is sealing baffle 21, sealing baffle 21's fixed surface installs padlock 22, the fixed surface of sealing baffle 21 is passed through padlock 22 and box 1's fixed surface and is connected.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
When the multi-ingredient mixing device is used, a power supply is connected firstly, weighed lubricants and coupling agents are injected into two hollow rings 7 through liquid supplementing holes 23 on different hollow rings 7 respectively, then the motor 3 is started, the motor 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the friction ring 11 to rotate, the friction ring 11 and the hollow rings 7 rub to generate heat energy, the heat heats the lubricants and the coupling agents and evaporates the lubricants, at the moment, other ingredients such as polypropylene, polyvinyl chloride and the like are injected into the grinding grooves 12 through different feed inlets 20 respectively, the rotating shaft 4 drives the grinding head 6 to rotate, grinding teeth 16 on the grinding head 6 are matched with the grinding grooves 12 to grind and shear the materials, particles are gradually fine and flow downwards until the materials enter the communicating grooves 15 to be primarily mixed, and the crushed materials fall through gaps between the grinding grooves 12 and the butt joint rings 13, at the moment, the evaporated coupling agent and the lubricant are in overall and uniform contact with the crushed materials, the materials fall on the inclined screen 18, the inclined screen 18 vibrates along with the equipment and sieves the materials with qualified particle sizes into the material extracting body 19, the rotating shaft 4 drives the material mixing rod 8 to rotate, and the materials are concentrated at the bottom of the material extracting body 19 and are driven by the rotating shaft 4 to be upwards thrown and dispersed for further and sufficient mixing.
Claims (7)
1. The wear-resistant non-toxic modified plastic comprises ingredients for preparing the wear-resistant non-toxic modified plastic and a multi-ingredient mixing device for mixing various ingredients, and is characterized in that: the wear-resistant nontoxic modified plastic comprises polypropylene, polyvinyl chloride, a coupling agent, glass fiber, carbon fiber, a lubricant, polytetrafluoroethylene and low-density polyethylene;
the production process of the wear-resistant nontoxic modified plastic comprises the following steps:
s1: weighing: 30% of polypropylene, 24% of polyvinyl chloride, 0.8% of coupling agent, 20% of glass fiber, 12.8% of carbon fiber, 0.4% of lubricant, 8% of polytetrafluoroethylene and 4% of low-density polyethylene are weighed.
S2: mixing and grinding: the coupling agent and the lubricant are sequentially placed inside the multi-ingredient mixing device, the multi-ingredient mixing device is started to preheat for three minutes, then the polypropylene, the polyvinyl chloride, the glass fiber, the polytetrafluoroethylene, the carbon fiber and the low-density polyethylene are sequentially fed, and then the ingredients are mixed and ground.
S3: extruding: the mixed material obtained in S2 was extruded in a twin-screw extruder at a temperature of 200 ℃ to 220 ℃.
S4: and (3) cooling and drying: and (3) the temperature of the plastic obtained in the step (S3) is between 150 ℃ and 160 ℃, the finished product is placed in a cooling box, the cooling temperature is 80 ℃, cooling is carried out for 1 hour without wind, natural wind dried by activated carbon is introduced after 1 hour, and wind force is blown against the surface of the plastic for 45 minutes.
S5, cutting and screening: and (4) cutting the plastic obtained in the step (S4) into particles with the particle size of 3mm by using a granulator, and screening by using a screen to obtain plastic particles with uniform particles.
S6: and (3) vulcanization treatment: and (3) putting the particles obtained in the step S5 into a vulcanizing machine for vulcanization at the vulcanization temperature of 260 ℃ and 300 ℃, under the pressure of 15-18MPa and for 10 minutes to obtain the finished wear-resistant non-toxic modified plastic.
2. The wear-resistant non-toxic modified plastic and the production process thereof according to claim 1 are characterized in that: the length of the glass fiber and the carbon fiber is less than 5mm, and the glass fiber and the carbon fiber are treated by bismaleimide, the coupling agent is a silane coupling agent, and the lubricant is stearic acid.
3. The wear-resistant non-toxic modified plastic and the production process thereof according to claim 1 are characterized in that: the multi-ingredient mixing device comprises a box body (1), supporting legs (2), a motor (3), a rotating shaft (4), a grinding hopper (5), a grinding head (6), two hollow rings (7) and a mixing rod (8), wherein the supporting legs (2) are fixedly connected to the bottom of the box body (1), the motor (3) is fixedly installed at the bottom of the box body (1), an output shaft of the motor (3) is fixedly connected with the rotating shaft (4) through a coupler, one end of the rotating shaft (4) penetrates through and extends into the box body (1), the grinding hopper (5) is fixedly connected to the inner part of the box body (1), the surface of the rotating shaft (4) is fixedly connected with the grinding head (6), a supporting rod (9) is fixedly connected to the inner wall of the box body (1), and a vertical rod (10) is fixedly connected to one end, far away from the inner wall of, the fixed surface of montant (10) is two hollow rings (7) that distribute from top to bottom, hollow ring (7) cover is established in pivot (4), the fixed surface of pivot (4) is connected with two friction rings (11) corresponding with hollow ring (7), the surface of friction ring (11) and the medial surface contact of hollow ring (7), the fixed surface of pivot (4) is connected with material mixing rod (8), fluid infusion hole (23) have been seted up on the surface of friction ring (11).
4. The wear-resistant non-toxic modified plastic and the production process thereof according to claim 3 are characterized in that: grinding groove (12) have been seted up to a plurality of on the surface of grinding fill (5), the surface of pivot (4) is provided with the bearing, and the fixed surface of bearing is connected with butt ring (13), the fixed surface of butt ring (13) is connected with butt rod (14), the fixed surface of butt rod (14) is connected with the fixed surface of grinding fill (5), be provided with the space between butt ring (13) and grinding fill (5), the inner wall of grinding groove (12) is the trend of shallowly gradually to butt ring (13) one side by the inner wall of box (1), the surface of grinding fill (5) is provided with intercommunication groove (15), intercommunication groove (15) communicate with each grinding groove (12).
5. The wear-resistant non-toxic modified plastic and the production process thereof according to claim 4 are characterized in that: the grinding head is characterized in that the lower surface of the grinding head (6) is inclined, a gap between the lower surface of the grinding head (6) and the grinding hopper (5) is gradually reduced, grinding teeth (16) are fixedly connected to the lower surface of the grinding head (6), the grinding teeth (16) are gradually reduced from top to bottom, and a grinding plate (17) is fixedly connected to the lower surface of the grinding head (6).
6. The wear-resistant non-toxic modified plastic and the production process thereof according to claim 5 are characterized in that: the inner wall of the box body (1) is fixedly connected with an inclined screen (18), the surface of the inclined screen (18) is fixedly connected with a bearing, and an inner ring of the bearing on the inclined screen (18) is fixedly connected with the surface of the rotating shaft (4).
7. The wear-resistant non-toxic modified plastic and the production process thereof according to claim 6 are characterized in that: the inner wall fixedly connected with of box (1) carries the material body (19), the inner wall of carrying the material body (19) is the arc form, the surface of material mixing pole (8) is the heliciform, the bottom of material mixing pole (8) and the inner wall sliding connection who carries the material body (19), a plurality of feed inlet (20) corresponding with grinding groove (12) have been seted up at the top of box (1), the surface of box (1) articulates there is sealing baffle (21), the fixed surface of sealing baffle (21) installs padlock (22), the fixed surface of sealing baffle (21) is connected with the fixed surface of box (1) through padlock (22).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964168A (en) * | 2017-12-15 | 2018-04-27 | 滁州市贝蒂玛童车有限公司 | A kind of wear-resisting nontoxic type modified plastics production technology |
| CN210356990U (en) * | 2019-06-06 | 2020-04-21 | 福建冠良汽车配件工业有限公司 | Brake block production is with high-efficient batching mixing arrangement |
| CN111248467A (en) * | 2020-01-21 | 2020-06-09 | 陈婕 | Multiphase homogeneous pulping machine and pulping method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964168A (en) * | 2017-12-15 | 2018-04-27 | 滁州市贝蒂玛童车有限公司 | A kind of wear-resisting nontoxic type modified plastics production technology |
| CN210356990U (en) * | 2019-06-06 | 2020-04-21 | 福建冠良汽车配件工业有限公司 | Brake block production is with high-efficient batching mixing arrangement |
| CN111248467A (en) * | 2020-01-21 | 2020-06-09 | 陈婕 | Multiphase homogeneous pulping machine and pulping method thereof |
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