1170 results about "Plasticulture" patented technology

The invention provides a method for preparing a single-material VMPE recoverable hose through dynamic temperature control multi-layer co-extrusion. The method comprises the steps that infrared temperature measurement modules are installed on all sections of an extruder respectively to construct a dynamic temperature control system; feeding the pretreated raw materials into a corresponding extruder, and adjusting a heating device and a cooling device of a charging barrel of the extruder in real time according to a preset extrusion temperature allowable range through a dynamic temperature control system to obtain a plasticized melt; carrying out bonding treatment on the plasticized melt by utilizing an ultrasonic vibration composite technology to obtain a multi-layer reinforced melt; detecting the thickness of the pipe wall of the multi-layer reinforced melt through a hyperspectral imager and judging whether the thickness of the pipe wall is qualified or not; if not, pipe wall thickness deviation data are fed back to a dynamic temperature control system and an extruder control system to conduct linkage adjustment on extrusion parameters; and if the multi-layer reinforced melt is qualified, cooling shaping and fixed-length cutting treatment are conducted on the multi-layer reinforced melt, the finished recoverable hose is obtained, and the hose forming precision and the recovery performance are effectively improved.

The invention relates to the field of plastic product processing equipment, and discloses an extrusion device for manufacturing plastic packaging products, which comprises a workbench, a conveying pipeline is fixedly mounted above the workbench through a support, a die head is fixedly mounted at the tail end of the conveying pipeline, a main shaft is movably mounted in the conveying pipeline, and a plurality of extrusion heads are fixedly mounted in the main shaft. A vertical feeding pipe is fixedly mounted on the side, away from the die head, of the bottom end of the conveying pipeline, an arc-shaped feeding pipe is fixedly mounted on the side, close to the vertical feeding pipe, of the conveying pipeline, the tail end of the arc-shaped feeding pipe communicates with the interior of the vertical feeding pipe, and a first motor is fixedly mounted at the inner bottom of the workbench; and a movable shaft is fixedly mounted at the driving end of the first motor. The compression efficiency is improved by chopping the raw materials to accelerate plasticization, stacking and then feeding, the raw materials are uniform in temperature and proper in viscosity and are optimized to enter a die head state under the synergistic effect of cooling and a magnetic field, and the product quality and the production efficiency are improved.

The invention relates to the technical field of recycled plastic injection molding, and discloses an injection mold based on a plastic recycled particle uniform plasticizing structure, the injection mold comprises a molding part, the molding part comprises a fixed mold, and one side of the fixed mold is slidably connected with a movable mold. The injection mold based on the uniform plasticizing structure of the plastic recycled particles can effectively solve the problems that in the prior art, the main purpose of a spiral conveyor is conveying, the recycled plastic particles are conveyed forwards and plasticized step by step under rotation pushing of a screw, but the recycled plastic particles are complex in source and difficult to plasticize. The material, the shape, the contained additives and the like of the recycled plastic particles are greatly different, the recycled plastic particles with different characteristics are difficult to be fully and uniformly mixed when entering a mold only through screw conveying and preliminary plasticizing, the interiors of products are easy to have nonuniform components and performances, and the strength of some parts of the products is insufficient. The invention solves the problems of high probability of breakage when bearing external force, poor overall quality, low production efficiency and low product percent of pass.

The invention discloses a high-strength polypropylene urine cup and a preparation process thereof, and relates to the technical field of polypropylene. The high-strength polypropylene urine cup is prepared from a high-strength polypropylene material through plasticizing, injection molding and compression molding. The high-strength polypropylene material is prepared from the following raw material components in parts by weight: 100 parts of homo-polypropylene, 10 to 20 parts of modified polypropylene, 10 to 15 parts of maleic anhydride grafted polypropylene, 5 to 12 parts of modified talcum powder, 5 to 10 parts of high-density polyethylene, 0.1 to 0.2 part of beta-nucleating agent, 2 to 4 parts of flexibilizer, 1.5 to 3 parts of lubricant, 0.5 to 1 part of antioxidant and 1 to 2 parts of antistatic agent. Through the synergistic effect of the modified polypropylene, maleic anhydride grafted polypropylene, high-density polyethylene, modified talcum powder and other raw materials, the high-strength polypropylene material with high strength and high transparency is comprehensively obtained.

The invention relates to the technical field of composite materials, in particular to a heat and sound insulation PVB intermediate film and a preparation method thereof. The problem that a PVB intermediate film is insufficient in heat insulation and aging resistance is solved. The preparation method comprises the following steps: pre-plasticizing PVB resin, shearing and mixing the pre-plasticized PVB resin and silane coupling agent modified enhanced nano cellulose, sequentially adding additives such as a plasticizer, molybdenum trioxide loaded lanthanum hexaboride, a composite light stabilizer and modified cerium oxide, and carrying out tape casting and hot pressing treatment to obtain the PVB intermediate film. Wherein the modified lanthanum hexaboride enhances infrared ray shielding, the composite light stabilizer and the modified cerium oxide synergistically improve the aging resistance, all the components are subjected to substance cooperation and process cooperation, comprehensive improvement of heat insulation, sound insulation and aging resistance of the PVB intermediate film is achieved, and the PVB intermediate film is suitable for the field of high-strength building glass.

The invention discloses a high-moisture-absorption cool-sense chinlon 6 master batch and a fiber and a preparation method thereof, and belongs to the technical field of chemical fibers. The preparation method comprises the following steps: respectively crushing and grinding chinlon 6 powder, a moisture absorption modifier, cool powder, an antioxidant and a dispersing agent, mixing to prepare mixed powder, and carrying out quantitative feeding, melting and plasticizing, screw transmission and shearing, water-cooling pelletizing, vibration screening and forced air drying to prepare the high-moisture-absorption cool chinlon 6 master batch. The preparation method comprises the following steps: uniformly mixing dried high-moisture-absorption cool-sense chinlon 6 master batches and chinlon 6 slices, metering, mixing, extruding and melting, spraying out through a special-shaped hole spinneret plate to form tows, sucking monomers, bundling, oiling, stretching, sizing, and finally winding and spooling to obtain the high-moisture-absorption cool-sense chinlon 6 fiber. The preparation method disclosed by the invention is simple in process, the moisture regain of the prepared high-moisture-absorption cool-feeling chinlon 6 fiber can reach 5-8%, meanwhile, the high-moisture-absorption cool-feeling chinlon 6 fiber shows cool feeling and good air permeability and comfort, and a woven fabric is soft, skin-friendly and smooth in hand feeling.

The invention provides a special rare earth antibacterial master batch for a PVC antibacterial air conditioner condensate pipe and a preparation method of the special rare earth antibacterial master batch. The problems that an existing PVC condensate pipe is poor in antibacterial performance, and a rare earth antibacterial agent and PVC resin are poor in compatibility and dispersity are solved. The master batch comprises PVC carrier resin, a rare earth antibacterial agent, a dispersing agent, a plasticizer, a heat stabilizer, a lubricant and a bulking agent, and the rare earth antibacterial agent is prepared by mixing rare earth oxide and inorganic oxide according to a specific proportion and carrying out mechanical dispersion, high-energy dispersion, secondary mechanical dispersion, drying, tunnel kiln firing and grinding treatment. The preparation method of the special rare-earth antibacterial master batch for the PVC antibacterial air conditioner condensate pipe comprises the steps of raw material pretreatment, raw material premixing, coupling treatment, mixing and plasticizing, melt extrusion, granulation molding and the like, and through a refining process and a supercritical carbon dioxide technology, it is ensured that a rare-earth antibacterial agent is uniformly dispersed and stably combined in a PVC matrix; the master batch with excellent antibacterial property, thermal stability and mechanical property is prepared.

The invention discloses a compound yeast agent for anaerobic degradation of biodegradable plastics. The compound yeast agent comprises the following components in percentage by mass: 0.5-3% of fenpropathrin, 1-6% of nitrite, 1-4% of ammonium molybdate, 5-10% of PLA, 5-10% of nano starch, 3-6% of nano calcium carbonate, 1-5% of carbamide and the balance of a biodegradable resin carrier. The production method comprises the following steps: 1, dispersion treatment; 2, centralization processing; 3, carrying out structured treatment; 4, carrying out carrier implantation treatment; and 5, plasticizing and granulating. The compound yeast agent is added into the plastic, and the addition amount is 1-5%, so that the anaerobic degradation plastic is formed. According to the invention, anaerobic degradation can be regulated and controlled, and more importantly, anaerobic degradation also realizes that the degradable plastic disclosed by the invention is in a normal use condition, the plastic cannot be degraded quickly in light and oxygen environments, the aging property of the plastic is equivalent to that of a resin matrix of the plastic, and the physical and mechanical properties are ensured.

The invention discloses a plasticizing industry intelligent logistics scheduling method based on order prediction, and relates to the field of plasticizing product logistics, and the method comprises the steps: predicting the order demands of a plurality of clients for plasticizing products in a preset time window based on historical data, and constructing a knowledge graph based on client nodes, order nodes and mark nodes corresponding to orders; in the knowledge graph, attribute parameters are added to each mark node, and the attribute parameters comprise the melt flow rate, the color grade and the additive grade; constructing a switching scoring function based on the attribute parameters; on the premise of ensuring that all orders are delivered in a preset time window, constructing a total objective function which comprehensively considers the total driving mileage, the vehicle cleaning cost score and the customer cleaning cost score; and by taking minimization of the total objective function as an objective, generating a scheduling scheme by adopting an optimization algorithm. According to the invention, the problem of cross contamination caused by neglect of trademark replacement in a traditional scheduling method is effectively solved.

The invention discloses a starch-based full-biodegradable mulching film capable of being rapidly degraded and a preparation method of the starch-based full-biodegradable mulching film, and belongs to the technical field of degradable materials.The preparation method comprises the steps of tea polyphenol calcium salt preparation, filler preparation, thermal plasticization and film preparation. The preparation of the filler comprises the following steps: adding silicon dioxide into a polyacrylic acid aqueous solution, stirring and centrifuging at room temperature, taking a precipitate, adding the precipitate into a polyvinylpyrrolidone aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, adding the precipitate into the polyacrylic acid aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, and freeze-drying to obtain the filler. The starch-based full-biodegradable mulching film prepared by the preparation method disclosed by the invention is good in processability, waterproofness and heat resistance and high in mechanical strength, the problem of phase separation does not occur in preparation, the problem of plasticizer precipitation does not easily occur in long-term use, and rapid degradation can be realized.

The invention relates to a PET plate production line and a production method. The PET plate production line comprises an extruder, a mold and a calender which are arranged in the machining direction. The extruder comprises a machine barrel and a double-screw assembly arranged in the machine barrel. The double-screw assembly comprises two screws meshed with each other, the outer diameter of each screw is decreased in the machining direction, the included angle between the central axes of the two screws ranges from 10 minutes to 1 degree 20 minutes, and the rotation directions of the two screws are opposite. The production line is improved according to the characteristics of PET materials, the plasticizing effect of the PET materials is improved, the quality of PET plates is guaranteed, the productivity of the production line is improved, and energy consumption is reduced.

The invention provides a single-screw pulse extrusion device with a self-cleaning function and self-meshing extrusion equipment. The extrusion device comprises a screw and a machine barrel, the screw rod is arranged in the machine barrel in a penetrating mode, the screw rod is meshed with the machine barrel, the cross section of the screw rod is in a reuleaux triangle shape, the molded line of the end face of the machine barrel is a fillet square hole formed by rotation of the reuleaux triangle, and the square hole reversely sweeps in the machine barrel in the axial direction to form a screw groove; in the machine barrel, the materials generate periodic volume change along with rotation of the screw rod, and the materials are pushed to move; in the operation process of the screw rod, compression and expansion circulation of materials is achieved, through the pulsation extrusion effect, the melting, mixing and exhausting efficiency is improved, and the melting, plasticizing and mixing effects of the materials are improved; meanwhile, efficient meshing of the inner surface of the screw and the inner wall of the runner is ensured, and the self-cleaning effect is achieved.

The invention relates to high-water-content ABS powder extrusion dehydration equipment, and aims to solve the problem that in the prior art, the high-water-content ABS powder is dehydrated until the water content is 18 wt% or below, and meanwhile plasticizing is avoided, the high-water-content ABS powder extrusion dehydration equipment comprises an extrusion mechanism used for carrying out extrusion dehydration on the high-water-content ABS powder; the drainage mechanism is used for receiving water discharged by the extrusion mechanism and discharging the water out of the extrusion dehydration equipment; the feeding mechanism is used for feeding ABS powder with high water content into the extruding mechanism; wherein the extruding mechanism comprises a conveying section, an extruding section, a crushing section and a dispersing section; the drainage mechanism is connected with the extrusion section; and the feeding mechanism is connected with the conveying section. By means of the equipment, the water content of the ABS wet powder can be reduced to 18 wt% or below from 50 wt% or below, the dehydrated ABS wet powder is still kept in powder and cannot be plasticized, and the follow-up blending and dispersing processes are facilitated.

The invention discloses a preparation method of an ultra-high molecular weight polyethylene biaxially oriented film, and relates to the field of high polymer materials, and the preparation method comprises the following steps: step 1, mixing ultra-high molecular weight polyethylene and polyethylene wax to obtain a composition; 2, melting and plasticizing the obtained composition, and extruding to form a thin-wall tubular film after melting and plasticizing; 3, the thin-wall tubular film is subjected to blowing, traction and rolling, and the final ultra-high molecular weight polyethylene film is obtained. The melt flowability of the ultra-high molecular weight polyethylene is improved by utilizing the polyethylene wax, and the polyethylene wax can participate in crystallization of the ultra-high molecular weight polyethylene by controlling the blow molding process, so that the mechanical property of the ultra-high molecular weight polyethylene biaxially oriented film is improved.

The invention provides a double-sided rubber yoga mat processing technology which comprises the following steps: S1, respectively preparing an A-side natural rubber coiled material and a B-side natural rubber coiled material: carrying out plasticizing treatment on a natural rubber raw material at the plasticizing temperature of 60-90 DEG C for 10-30 minutes; s2, color master batches are added into the plasticized natural rubber for mixing, color master batches of different colors are adopted for the A face and the B face respectively, and the adding amount of the color master batches accounts for 1-5% of the total weight of the rubber; s3, the mixed rubber sizing material and fine cloth are synchronously fed into a foaming furnace through continuous compounding equipment, foaming forming is conducted at the temperature of 160-200 DEG C, and a coiled material formed by compounding a rubber layer with a porous structure on the surface and the fine cloth is formed; s4, the A-face coiled material and the B-face coiled material are continuously compounded through a hot pressing roller, and the hot pressing temperature is 120-150 DEG C; the problems that a traditional yoga mat is single in double-sided function, low in compounding process efficiency and high in interlayer stripping risk are solved.

The invention relates to the technical field of co-extrusion molding, in particular to a multi-layer co-extrusion molding method of a building composite membrane material, which comprises the following steps: melting and plasticizing a polymer mixture of each layer, and then synchronously co-extruding to obtain a composite tubular melt blank; injecting gas into the composite tubular melt blank and drawing to obtain a composite tubular bubble; judging whether the preparation of the composite tubular vesicle reaches the standard or not according to the vesicle form characterization value; cooling and curing the composite tubular film bubbles reaching the standard to obtain a composite tubular film; when it is judged that the preparation of the composite tubular membrane does not reach the standard according to the circumferential cooling uniformity characterization value, an adjustment strategy when the preparation of the composite tubular membrane does not reach the standard is determined according to the circumferential wind speed extreme value ratio of the cooling wind ring; and flattening and rolling the composite tubular membrane reaching the standard to obtain the composite membrane material for the building. The co-extrusion forming efficiency of the composite membrane material for the building is improved.

The invention provides a preparation method of a glue-free repulping multi-layer high-barrier packaging material, which comprises the following steps: taking a first paper base and a second paper base, preparing a barrier coating, and adding a plasticizer into the barrier coating; coating the first surface of the first paper base with a barrier coating to form a first paper base barrier layer with a two-layer structure; the second surface of the second paper base is coated with the mixture to form a second paper base barrier layer with a two-layer structure; the high-barrier packaging material is prepared by making one side of the barrier material face to face, overlapping and hot-pressing, further, the plasticizer is a bio-based plasticizer, the formed high-barrier packaging material is of a two-layer split structure through design, the surfaces of the two split layers are both coated with the barrier material, and the high-barrier packaging material is obtained. The same barrier material is plasticized and combined by using a hot pressing process, so that a synergistic and associated effect from addition and use of an environment-friendly material to a processing process is formed, the interlayer binding force of the material is effectively improved, the problems of swelling and cracking of the material are prevented, and the comprehensive properties such as moisture, oxygen and re-pulping are improved.

The invention relates to the technical field of structural part injection molding, in particular to a manufacturing method and equipment for a continuous fiber reinforced structural part, and aims to solve the problem that a structural part manufactured in the prior art cannot meet the requirements for light weight and high strength at the same time. Comprising the following steps: heating a thermoplastic composite material sheet and putting the thermoplastic composite material sheet into a mold; designing an original material formula, preparing materials according to the formula, and mixing the materials into a uniform melt; conveying and injection molding of melt materials are controlled through a reversing valve; the manufacturing data is associated with the product. The equipment comprises an extruding and mixing mechanism for melting, plasticizing and mixing each material in an original material formula, an injection molding mechanism for realizing the injection of a melt material, an injection molding machine mold locking unit for completing molding and curing, a control system for coordinating the whole process and an information tracing mechanism for ensuring the traceability of a product. The scheme is suitable for manufacturing functional parts with extremely high requirements on performance and safety in aerospace and automobile industries.

The invention relates to the related technical field of PETG label films, in particular to PETG hot melt adhesive label film preparation equipment and method.The PETG hot melt adhesive label film preparation equipment comprises a base, an extrusion mechanism is arranged on the upper surface of the base, a melt pump is arranged on the surface of one side of the extrusion mechanism, and a feeding mechanism is arranged on the upper surface of the extrusion mechanism. According to the equipment and the method for preparing the PETG hot melt adhesive label film, raw materials are uniformly crushed through multiple groups of crushing shafts, multiple groups of heating pipes are uniformly heated from the upper direction and the lower direction, sufficient and uniform plasticizing of the materials is ensured, the defective rate is reduced, stirring blades are distributed at equal intervals, uniform stirring is realized, sufficient fusion of an additive and PETG resin is ensured, and the product quality is guaranteed from the source; the connecting shafts synchronously rotate through the chains, stable and consistent power transmission is guaranteed, the multiple sets of limiting grooves are matched with the limiting columns, the upper panel is accurately positioned, the extrusion mechanism is stable in structure, the sealing grooves are tightly matched with the sealing columns, leakage is prevented, the internal stable environment is maintained, and stable operation of equipment is guaranteed.

The invention relates to the technical field of design and processing of PVC (polyvinyl chloride) composite materials, in particular to a multi-layer composite processing method of a PVC decorative film based on heat resistance, which comprises the following steps: firstly, preparing PVC resin powder, various additives and a nano modified additive, premixing and mainly mixing the raw materials, uniformly mixing under the protection of nitrogen, plasticizing and extruding by using a double-screw extruder, and carrying out extrusion molding to obtain the PVC decorative film based on heat resistance. Surface treatment including plasma and chemical etching is carried out after extrusion, then a modified polyurethane bonding layer containing a silane coupling agent is coated and compounded with a micro-nano structure PET decorative film, ultrasonic vibration is applied, then hot-pressing shaping is carried out, a hot-pressing roller is provided with micro textures, finally cooling and rolling are carried out, and all the steps have specific parameters. According to the method, the effect is remarkable, the heat resistance of the PVC decorative film is greatly improved, the heat deformation temperature is increased, the processing performance is optimized, the production efficiency is improved, the bonding and compounding effect is enhanced, the decorative layer is not prone to falling off, the environmental protection property and the product attractiveness are further improved, and the market competitiveness is enhanced.

The invention discloses a matte high-speed PETG modified material for 3D printing and a preparation method thereof, and the matte high-speed PETG modified material for 3D printing comprises the following components in parts by weight: 55-90 parts of PETG resin, 1-20 parts of a toughening agent, 9-25 parts of a delustering agent, 0.3-1 part of an internal lubricant, 0.3-2 parts of an external lubricant, 0-1 part of an anti-hydrolysis agent and 0.1-0.8 part of an antioxidant. The preparation method comprises the following steps: mixing the PETG resin, the TPU resin, the calcium carbonate, the stearic acid, the organosilicon polymer and the antioxidant in proportion, mixing at a high speed by a high-speed mixer, and melting, plasticizing, extruding, pelletizing and drying by a double-screw extruder to obtain the 3D printing matte high-speed PETG modified material.

The invention relates to the technical field of 3D printing materials, and discloses a full-degradable bamboo-based composite material for 3D printing and a preparation method of the full-degradable bamboo-based composite material for 3D printing. 30%-50% of a bio-based thermoplastic material; the bio-based thermoplastic material is selected from at least one of polyhydroxyalkanoate (PHA), poly (butylene succinate) (PBS) or thermoplastic starch (TPS); 5%-10% of an interface modifier; the interface modifier is a compound of chitosan and citric acid, and the mass ratio of the chitosan to the citric acid is (1: 1)-(2: 1); 0.5%-2% of a functional auxiliary agent; the functional auxiliary agent comprises but is not limited to a natural antioxidant, a bio-based plasticizer and a halogen-free flame retardant. The bamboo fiber powder and the full-degradable bio-based material (PHA / PBS / TPS) are compounded according to a specific proportion, and the chitosan-citric acid composite interface modifier is combined, so that the interface bonding force is remarkably improved. Natural functional auxiliaries are added, and the requirements for oxidation resistance, plasticizing flowability and flame retardance are synchronously met.

In order to solve the problems that an existing friction stir additive manufacturing device is unsmooth or discontinuous in feeding, large in axial upsetting force, narrow in material application window and the like, the friction stir additive manufacturing device comprises an additive mechanism, a rod feeding mechanism, a conveying mechanism, a feeding mechanism and a supporting mechanism. The supporting mechanism is responsible for installation and position adjustment of other mechanisms, the feeding mechanism is responsible for ejecting out single bars in a stock bin and conveying the single bars to a conveying belt of the conveying mechanism, the conveying mechanism is responsible for conveying the bars into a bar conveying wheel of the bar conveying mechanism, and then the bars are conveyed to a feeding hole of the material adding mechanism through the bar conveying mechanism. The bar is sheared and plasticized in the material adding mechanism and moves to the bottom along the spiral cavity to be extruded out, and a deposition layer is formed. According to the invention, through an alternate continuous rod feeding mode, the additive manufacturing of the gradient composite material with adjustable light alloy components can be realized. The invention belongs to the technical field of solid phase additive manufacturing.

The invention relates to the technical field of PET (polyethylene terephthalate) bottle preparation, and discloses an anti-light-transmission PET bottle preparation method based on a two-way stretching process, raw material pretreatment: compounding a food-grade PETG (polyethylene terephthalate glycol) resin base material, a titanium dioxide or carbon black opacifying agent and auxiliaries containing a dispersing agent and the like, premixing for 5-10 minutes in a high-speed mixer at the speed of 800-1200 rpm, and carrying out vacuum drying for 4 hours at the temperature of 120 DEG C to obtain a premix with the water content of less than or equal to 30 ppm; melting and injection molding: plasticizing the premix through a twin-screw extruder, and carrying out injection molding to obtain a tubular preform with the wall thickness of 2-3mm; and cooling and heating: cooling the preformed blank in a water bath at 25 DEG C, and heating the surface layer to 90-00 DEG C and the core to 60-70 DEG C by using an infrared heating furnace. Stretching and blow molding are conducted, axial stretching is conducted at 50-80 mm / s, radial high-pressure air blow molding is conducted at 2.5-3.5 MPa, the temperature of a mold is 80-100 DEG C, and pressure maintaining is conducted for 5-8 seconds. And post-treatment: cooling in three sections, cutting off excess materials, and carrying out UV treatment to improve weather resistance. By optimizing dispersion of the opacifying agent and selecting a proper opacifying agent, light is effectively blocked, and the light transmittance is controlled at an extremely low level.

The invention provides a recovery device for building waste plastic building materials, and relates to the field of waste recovery devices.The recovery device comprises a feeding mechanism, a crushing mechanism, a separating mechanism and a melting granulation mechanism, and further comprises a crushing system and an electric control system; according to the crushing system, a primary crushing unit is driven by a first variable frequency motor; the secondary crushing unit is arranged at the discharging end of the primary crushing unit and is driven by a second variable frequency motor; the screening unit is arranged below the secondary crushing unit; wherein the electric control system is electrically connected with the first variable-frequency motor and the second variable-frequency motor and used for independently controlling the rotating speeds of the first variable-frequency motor and the second variable-frequency motor so as to drive the primary crushing unit and the secondary crushing unit to do differential relative motion, and the screening unit is used for returning substandard materials to the primary crushing unit to be crushed again. Multi-stage differential crushing and intelligent closed-loop control are adopted, airflow separation and magnetic separation impurity removal are combined, efficient and energy-saving production is achieved through segmented melting and plasticizing, and the treatment efficiency and the purity of a finished product are improved through an automatic system.

The invention relates to the technical field of greenhouse film processing, and discloses a seven-layer co-extrusion greenhouse film blow molding unit which comprises an extrusion plasticator, a filtering device, a seven-layer composite mold forming machine, a blowing, cooling and shaping device, a foam stabilizing device, a clamping plate, an upper traction device, a guide roller, a lower traction device and a winding device. The extrusion plasticizing machine is provided with a filling hopper, the tail part of the extrusion plasticizing machine is provided with a filtering device, and a discharging hole of the filtering device is connected with a feeding hole of the seven-layer composite die forming machine; materials discharged from a discharging port of the seven-layer composite die forming machine sequentially pass through the blowing, cooling and shaping device, the position between the two foam stabilizing devices, the position between the two clamping plates, the upper traction device, the guide roller and the lower traction device, and then are finally wound on the winding device. Compared with the prior art, the seven-layer co-extrusion greenhouse film blow molding unit and the processing technology thereof have the advantages that the seven-layer co-extrusion greenhouse film blow molding unit and the processing technology thereof are provided to adapt to changes of raw materials and master batches, the functionality of a film is increased, the quality of the film is improved, and the product cost is reduced.

The embodiment of the invention relates to the technical field of artificial intelligence, and provides a supply chain management method and system based on artificial intelligence. The method comprises the following steps: collecting multi-dimensional supply chain data in real time; and carrying out dynamic quality evaluation on the data, automatically correcting data deviation by adopting an isolated forest abnormal value restoration model in combination with an evaluation result, and obtaining corrected data. And based on plasticizing industry chain platform business scenes, identifying transaction, inventory, logistics and quality detection subjects matched with the scenes in the correction data, aggregating the data according to the scenes and the corresponding subjects, forming a supply chain data set of each scene, and establishing and dynamically updating a supply chain data lake. And extracting supply chain operation characteristics of each scene from the data lake through a space-time diagram convolution model, and predicting a demand change trend of each scene according to the supply chain operation characteristics. The trend input graph attention generative adversarial network is used to predict multi-level inventory distribution, then each scene inventory management scheme is generated, dynamic supply chain management of each business scene is realized, and the supply chain data quality and management degree are improved.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

The invention relates to the technical field of plastic films, in particular to an antibacterial degradable film and a preparation method thereof. The problem that a traditional degradable film is poor in antibacterial property and mechanical property is solved. The film is prepared from the following raw materials: PLA, PBS, PHA, PCL, modified nanocellulose, an antibacterial agent, composite antibacterial particles and maleic anhydride grafted PLA. The preparation method comprises the following steps: preparing functional master batches from silane coupling agent modified nano-crystalline cellulose and PLA, preparing antibacterial master batches from ZIF-8 loaded tea polyphenol antibacterial agent, mesoporous silica loaded chitosan composite antibacterial particles and PBS, adding the rest of matrix resin, functional master batches, antibacterial master batches and compatilizer into an extruder step by step, and carrying out extrusion molding to obtain the composite antibacterial material. And after mixing, plasticizing and exhausting, blow-molding to form a film, thereby obtaining the antibacterial degradable film. The mechanical property is enhanced through the functional master batch, and the composite antibacterial system has synergistic interaction, so that the film has excellent antibacterial property and mechanical property on the basis of degradability.