5261 results about "Plastic materials" patented technology

The invention belongs to the technical field of polymer plastic materials, and particularly relates to a high-temperature-resistant anti-corrosion polytetrafluoroethylene material and a preparation method thereof. The polytetrafluoroethylene is prepared from the following raw materials in parts by weight: 50 to 60 parts of polytetrafluoroethylene, 5 to 10 parts of fluorinated modified graphene oxide, 3 to 5 parts of aluminum powder, 5 to 8 parts of modified silicon carbide fiber, 3 to 5 parts of silane modified nano silicon dioxide, 2 to 3 parts of polyphenylene sulfide, 2 to 3 parts of polyimide, 0.5 to 0.8 part of dispersing agent and 0.5 to 1 part of antioxidant. The heat conduction performance and the interface bonding force are improved through the fluorinated modified graphene oxide, the impact resistance and the wear resistance are enhanced through the silicon carbide fibers, and the corrosion resistance and the wear resistance are improved through the aluminum powder; silane modified silicon dioxide enhances the mechanical property of the composite material by improving the dispersity of the filler, and PPS and PI interact with the surface of the filler through polar groups in molecular chains, so that the interface strength is improved, and the toughness and the thermal stability are improved.

The invention relates to the technical field of plastic mold parameterized simulation, in particular to a parameterized simulation model design method and system for a plastic mold. The method comprises the following steps: carrying out raw material fine preparation on a target plastic raw material to obtain a homogeneous dry material; performing multi-field rheological characteristic scanning on the homogenized and dried material, and extracting viscosity model parameters to obtain viscosity model initial parameters; precisely measuring thermodynamic characteristics of the plastic material on the homogenized and dried material, and analyzing crystallization kinetic behaviors to obtain crystallization kinetic model parameters; and carrying out material gene spectrum integration according to the initial parameters of the viscosity model and the parameters of the crystallization kinetic model to obtain a material gene spectrum. According to the method, through performance-driven parameter optimization and intelligent mold blueprint generation based on the material physical property and the microenvironment, the mold manufacturing efficiency and quality are remarkably improved, and the manufacturing cost is reduced.

The invention provides a macroscopic finite element simulation analysis method and device for a sealing element considering plastic deformation, and belongs to the field of sealing element design. The method comprises the following steps: acquiring an engineering stress-strain curve of a plastic material in a compression state; converting the engineering stress-strain curve into a real stress-strain curve; determining a yield limit, and taking a strain point corresponding to the yield limit as a demarcation point of elasticity and plastic deformation; an elastic section of a real stress-strain curve is extracted, the elastic modulus is calculated, and the Poisson's ratio is obtained through axial and transverse strain measurement in a uniaxial compression test; a true stress-strain curve plastic section is extracted, and a multi-linear isotropic hardening model is established; constructing a complete elastic-plastic constitutive model covering the elastic deformation area and the plastic deformation area; the stress distribution, the strain response and the contact performance of the plastic sealing element in a compression deformation state are simulated. According to the method and the device provided by the invention, the problem that the result does not conform to the reality due to the fact that only elastic modulus and Poisson's ratio are used in existing sealing element simulation can be solved.

A stabilizer for an aerial projectile comprises a conical portion with a first longitudinal axis, a first end of a lesser diameter, and a second end of a greater diameter. A tubular portion having a second longitudinal axis is coaxially conjoined at the first end of the conical portion. An external surface of the conical portion is engrailed or invected by a radial succession of flutes alternating with a radial succession of splines. For invected surfaces, at least a portion of any one flute from among the radial succession of flutes may comprise a planar surface. The surfaces of the flutes and splines may be longitudinally straight or may be helical surfaces. The stabilizer may be made of plastic and a portion of the plastic may be a recycled plastic material.

The invention relates to the technical field of plastic packaging preparation, in particular to an anti-aging plastic packaging material and a preparation method thereof.The anti-aging plastic packaging material is prepared from, by mass, 100-140 parts of polylactic acid, 60-80 parts of PBAT, 2-5 parts of a composite anti-aging agent, 1-2 parts of a lubricant, 2-4 parts of a flame retardant and 3-6 parts of a compatilizer; the composite anti-aging agent comprises a modified anti-aging agent obtained by compounding functionalized montmorillonite and modified silicon dioxide, the functionalized montmorillonite is carnosic acid grafted rare earth ion modified montmorillonite, and the modified silicon dioxide is epoxy methyl oleate grafted silicon dioxide. According to the anti-aging plastic packaging material provided by the invention, a plastic material system with multiple protection mechanisms is constructed through the synergistic effect of all the components, and the prepared plastic packaging material not only keeps good biodegradability, but also has excellent ultraviolet light resistance and oxidation resistance.

The invention relates to a multi-axis robot (100) comprising a plurality of gearboxes, wherein each of the plurality of gearboxes is configured to operate on a respective robot axis (A1-A6) and comprises one or more gears formed of a plastics material. The invention also relates to a gearbox for use in a robot (100) and the use of a gearbox in a robot (100) and robot subsystems.

A universal double joint is provided comprising: a drive rotatable bearing having a first spherical surface formed of a plastic material; a proximal metal cross pin configured to receive an imparted drive force and to impart the imparted drive force to the first rotatable bearing; a driven rotatable bearing having a second spherical surface formed of a plastic material; and a distal metal cross pin configured to receive the imparted drive force and to impart the imparted drive force to the second rotatable bearing.

A foam earplug for reception at least partially within the ear canal and including a body portion formed of resilient foam plastic material having a multiple open cell structure and having a size and shape for at least partial reception within the ear canal. A transdermal material having a particular beneficial action, and with an outer layer of the foam earplug infused with the transdermal material so that the benefits of the transdermal material is in transdermal contact with the ear canal. One example is a humectant material and, specifically, a moisturizer / lubricating material, for providing an increase to the lubrication and moisturizing in the ear canal. A second example is where the beneficial action is provided by systemic distribution such as a sleep aid, i.e., Melatonin, so that when the earplugs are worn during sleep, the earplugs will provide a sleep aid to the wearer.

The invention relates to the technical field of plastic processing, and discloses an environment-friendly plastic product extrusion molding intelligent parameter control system and method, and the system comprises a data collection and fusion module, a causal association construction module, a digital twinning and virtual-real interaction verification module, an intelligent control module, a self-adaptive reconstruction module, and a man-machine interaction and visualization module. The method comprises the steps of collecting data in real time, and performing deep fusion to generate features; dynamically constructing a knowledge graph by fusing features, and synchronously updating causal topology; constructing a digital twinborn model, and performing virtual operation prediction; generating an instruction to regulate and control the microstructure; recognizing and classifying disturbances, and reconstructing a causal topology to guide strategy adjustment; the system state is displayed in real time, and operation intervention is supported. On-line microstructure data are acquired and deeply fused in real time through the data acquisition and fusion module, and a deep correlation model is constructed in combination with the microstructure guide reverse deduction unit, so that the problems of large batch difference and unstable physical properties of environment-friendly plastic materials are effectively solved.

The invention discloses a double-guide-column plastic material forming machine. The die comprises a supporting base, a lower die base arranged on the supporting base, an upper die base capable of moving in a reciprocating mode relative to the lower die base, a driving supporting base arranged on the rear portion of the supporting base and a guiding supporting base vertically arranged on the driving supporting base, and a driving lead screw is arranged on the driving supporting base. Two guide rods parallel to the driving lead screw are arranged between the top of the guide supporting base and the supporting base, the upper die base is installed with the driving lead screw and the two guide rods in a matched mode, and a die pressing plate matched with the lower die base is fixedly installed on the upper die base. The mold pressing plate can reciprocate relative to the lower mold base through lifting of the upper mold base so as to press a blank. The device has the advantages that the action reliability and stability are good in the pressing process, and the pressing quality is greatly improved. And the parallelism of the guide rod and the screw rod is ensured, so that the pressing quality is greatly improved. The device is easy to manufacture, low in manufacturing cost, convenient to operate and use and high in use efficiency.

The invention relates to the field of high polymer materials, and discloses a degradable environment-friendly plastic, which comprises 20-50% of polylactic acid, 10-30% of polyhydroxyalkanoate, 5-20% of a starch-based material, 1-10% of a nano reinforcing agent, 0.5-5% of a self-repairing microcapsule, 2-10% of a bio-based plasticizer, and 0.1-3% of a natural antioxidant. Compared with an environment-friendly plastic scheme only adopting a single component of PLA or PHA in the prior art, the environment-friendly plastic disclosed by the invention adopts a composite formula comprising polylactic acid, polyhydroxyalkanoate, a starch-based material, a nano reinforcing agent, a self-repairing microcapsule, a bio-based plasticizer and a natural antioxidant; according to the present invention, the overall performance of the material is improved, and the degradation rate and the degradation process are optimized, such that the plastic material can maintain the high strength and the high toughness, and can be efficiently degraded in the natural environment so as to effectively solve the problems of incomplete degradation and insufficient mechanical property of the traditional single material.

The utility model relates to a drinking device which comprises a cover body part and a bottle body part, the bottle body part is used for containing drinking water, the cover body part is made of plastic materials and can cover the bottle body part, the cover body part is provided with a base cover, the drinking device further comprises a perfume box, the perfume box is provided with an air inlet hole and an air outlet hole, and the air inlet hole is communicated with the base cover. A perfume cavity and a suction nozzle piece are adjacently arranged on the base cover, the perfume cavity is used for containing the perfume box, a main body of the suction nozzle piece is longitudinally provided with a water flow channel and transversely provided with an air flow channel, and the relative position of the perfume box is changed so that the air outlet and the air flow channel can be communicated or closed. The upper part of the suction nozzle piece is arranged on the upper side of the base cover and used for making contact with the mouth, the lower part of the suction nozzle piece is arranged on the lower side of the base cover and used for being connected with a suction pipe in the bottle body part, the outer surface of the upper part of the suction nozzle piece is smooth, use is convenient, the machining technology is simple, and higher market competitiveness is achieved.

The present subject matter discloses an integrated door assembly for a prefabricated shed constructed from modular plastic components or panels. The door assembly comprises a door panel that includes a door side panel and a door body, which are integrally formed through blow molding. The door body is connected to the door side panel via an embedded folding groove, featuring a thinner plastic material at the fold to allow for flexibility and ease of movement. Additionally, the door assembly incorporates a pivotable frame bracket that encases the edges of the hinged, rotating panels, enhancing both strength and durability.

A power distributor (200) with at least two incoming lines (101-103) and a method for manufacturing such a power distributor is suggested. Each incoming line has a conductor (106,107) and an individual screen (114). The conductors of the incoming lines are connected at a connection point (V1, V2), which is enclosed by a screen shield (201) that contacts each individual screen (114) of the incoming lines. The screen shield (201) is made from electrically conducting plastic material. Screen shields made from electrically conducting plastic material is easier to manufacture and less expensive than metal screen shields.

The invention discloses an anti-blocking self-passing type plastic molding device, which relates to the technical field of plastic product processing, and comprises a base station, a screw conveying component and a mold closing component, and a material pipe is fixedly mounted at a feeding hole in the upper part of the screw conveying component. In the working process of the injection molding machine, the driving motor drives the sliding barrel to rotate, through cooperation of the sliding column and the spiral groove, the pushing disc effectively pushes plastic materials in the material pipe, softening and blocking are avoided, meanwhile, the cutting knife is used for refining material particles, the pushing difficulty is reduced, and the production efficiency is improved; materials are screened through cooperation of screening holes and a blocking plate, large or unqualified materials are removed, it is ensured that the granularity of the raw materials is uniform, in the pushing process, a connecting rod and a sealing plate are matched, the interior of a material pipe is sealed after pushing is completed, the material pressure at the screening holes is increased through the double effects of sealing and extruding, and material circulation is promoted; the screening stability and the production quality are improved, and the finished product quality of plastic products is guaranteed.

The invention belongs to the technical field of water electrolysis hydrogen production, and particularly relates to an electrolytic hydrogen production electrolytic bath. Comprising a composite electrode assembly; the composite electrode assembly comprises an electrode frame, a bipolar plate, an electrode conductive frame, an oxygen evolution electrode and a hydrogen evolution electrode, the electrode frame is arranged on the outer side of the bipolar plate, the electrode frame and the bipolar plate are both made of plastic materials, the electrode conductive frame is arranged in the electrode frame, and the oxygen evolution electrode and the hydrogen evolution electrode are arranged on the two sides of the bipolar plate respectively and both connected with the electrode conductive frame. By adopting the plastic-based bipolar plate, a sealing effect can be achieved, a sealing gasket part of a traditional electrolytic cell is removed, and the cost of the electrolytic cell is greatly reduced; and the plastic-based bipolar plate, the electrode and the electrode conductive frame are integrated into a whole, so that the assembling and integrating process of the electrolytic cell is greatly simplified.

The invention relates to the technical field of plastic material preparation, and discloses a modified bamboo fiber, a PBAT composite material and a plastic object. The modified bamboo fiber comprises bamboo fiber subjected to hot pressing treatment in water and a closed aziridine cross-linking agent loaded on the bamboo fiber, and the mass ratio of the bamboo fiber subjected to hot pressing treatment in water to the closed aziridine cross-linking agent is 100: (1-10). The PBAT composite material comprises the following components in parts by weight: PBAT and modified bamboo fibers, and the mass ratio of the PBAT to the modified bamboo fibers is 100: (20-40). The modified bamboo fiber is subjected to hot pressing treatment in water, so that the generation of volatile gas caused by high-temperature processing can be avoided when the modified bamboo fiber is applied to the plastic material, and the interface interaction with the plastic material can be improved; the closed aziridine cross-linking agent can release active groups at high temperature, and can react with active functional groups such as hydroxyl and carboxyl on the surfaces of the bamboo fibers and the surfaces of the plastic materials, so that the interface interaction between the bamboo fibers and the plastic matrix is improved, and the tensile strength of the composite material is improved.

The invention discloses a double-injection rubber-coated product assembled in a super-thick plastic part cavity structure mold and a production process of the double-injection rubber-coated product. A molten plastic material is injected into a first injection mold cavity through a first gun barrel of a double-injection injection molding machine to form a first injection molding part and a second injection molding part which are integrated; then the six-axis robot is controlled to drive the part taking and mounting tool to move to grab the insert and fix the insert to the second injection molding part, and at the moment, a closed assembly part with a cavity structure is formed between the second injection molding part and the insert; finally, a molten plastic material is injected to the outer surface of the assembly part of the second injection mold through a second gun barrel of the double-injection injection molding machine to form a third injection molding part; according to the technology, the overall weight of a solid structure product can be greatly reduced, the material use is reduced, the material cost is reduced, the product cooling time is shortened through the design of the cavity structure, the production efficiency is improved, and the product defects such as surface shrinkage marks and internal irregular cavities caused by excessive shrinkage of a plastic material in the cooling and curing process are thoroughly eradicated.

Process for feeding plastic material, e.g. a plastic waste, to a processor such as a thermochemical reactor, e.g. a pyrolysis reactor. The process comprises an optional shredder or disintegrator (1), a conveying system (2), a feed hopper (3) with a lock hopper or rotary valve, a melting tank (6) with an agitator (5) followed by a melt pump (7) for the delivery of molten plastic to the processor. The advantage of the current process includes the ability to supply a consistent, metered flow to the processor, independent of the recycled plastic's melt properties, or the form or particle size and distribution of the plastic material.

The present invention relates to the treatment of plastic materials to be used for chemical recycling processes for the enhancement of substantially plastic materials otherwise destined for disposal.Specifically, the invention relates to a process for the pyrolysis of substantially plastic material to obtain at least hydrocarbons that are liquid at 25° C., comprising the following steps:a) feeding a substantially plastic material to a pyrolysis reactor;b) bringing said material in said pyrolysis reactor to a temperature of between 330° C. and 580° C. in the substantial absence of oxygen and at a pressure of between atmospheric pressure and 13 bara;c) maintaining said material in said pyrolysis reactor for a sufficient amount of time to produce an effluent in the gaseous state;d) partially or fully condensing said effluent in the gaseous state, so as to form at least one fluid comprising hydrocarbons that are liquid at 25° C. and which quantitatively is at least 10% by mass with respect to the mass of substantially plastic material fed;e) carrying out an assessment of at least one property “Px” of the liquid condensed from said effluent in the gaseous state by means of at least one measurement “Ax” of the spectrum in transmission, reflection or transflexion on said condensed liquid;f) adjusting at least one process parameter “Ox” according to said assessment of at least one property “Px”;g) repeating steps e) and f) iteratively so as to keep the said at least one property “Px” substantially constant over time.

Foldable storage bins, organizers, caddies, tray, and accessories formed from corrugated plastic materials, and methods of using the same, for work-site use. The storage bins, organizers, caddies, and / or container accessories can optionally include a protective liner.

The invention discloses a high-temperature injection molding plastic material with a spraying-free flow line effect and a preparation method of the high-temperature injection molding plastic material. The spraying-free flow-line-effect polycarbonate plastic material comprises a high-temperature injection molding plastic material and a high-heat-resistance flow-line-effect color master batch, and the preparation process comprises the following steps: (1) preparing the high-heat-resistance flow-line-effect color master batch from the following materials: polyhexamethylene adipamide, polycarbonate, an antioxidant 1 #, an antioxidant 2 #, a lubricant, a weather-resistant agent and toner; (2) preparing a high-temperature injection molding plastic material, wherein the materials comprise polycarbonate, a polyacrylonitrile-styrene-butadiene copolymer, a flexibilizer, an antioxidant 1 #, an antioxidant 2 #, a lubricant, a weather-resistant agent and toner; the color master batch with the high heat-resistant flow line effect is added into a high-temperature injection molding plastic material, the polycarbonate plastic material with the spraying-free flow line effect is obtained by mechanical mixing, and a plastic product with the spraying-free flow line effect, which integrates mechanical properties and attractiveness, can be prepared after injection molding.

An image capturing lens system includes a first lens having negative refractive power, a second lens having positive refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, a fifth lens having refractive power, a sixth lens having refractive power, a seventh lens having positive refractive power, and an eighth lens having refractive power. The first to eighth lenses are sequentially disposed from an object side. The first lens and the fourth lens are formed of a glass material. The second lens, the third lens, the fifth lens, the sixth lens, the seventh lens, and the eighth lens are formed of a plastic material.

The invention relates to the technical field of plastic crushing, in particular to a plastic product recovery device which comprises a feeding bin and a crushing bin and further comprises multiple sets of clamping plates located in the feeding bin. The crushing unit is arranged in the crushing bin and is used for crushing plastic bottle bodies and plastic bottle caps, the bidirectional driving unit is arranged in the feeding bin, the clamping plates are arranged on the bidirectional driving unit, and the bidirectional driving unit is used for driving the two clamping plates to clamp the plastic bottles; according to the plastic product recovery device, the plastic bottles are usually made of different plastic materials, the physical and chemical properties of the materials are different, the quality of regenerated plastic can be reduced through mixed recovery, and the quality of the regenerated plastic can be improved by separating bottle bodies from bottle caps. And it can be ensured that different types of plastics are more effectively recycled and treated, and therefore the purity of the recycled plastics is improved.

The invention relates to the technical field of plastic material forming and processing, in particular to an internal mixer for producing thermoplastic elastomers, which comprises a main body, a processing part, a movable weight part, a feeding module, a linkage part, an auxiliary discharging part, a control host and a conveying part, the main body comprises a supporting seat, and the upper side of the supporting seat is fixedly connected with a box shell; an internal mixing chamber is formed in the inner side of the box shell, the upper side of the internal mixing chamber communicates with a through opening, rail frames are fixedly connected to the front side and the rear side of the lower end face of the box shell correspondingly, rail blocks are slidably connected to the inner sides of the rail frames correspondingly, and a discharging plate located on the inner side of a discharging opening of the box shell is fixedly connected to the upper sides of one set of rail blocks. Through the main body, the movable ram part, the feeding module, the linkage part and other structures, when the internal mixer is used for producing thermoplastic elastomers, various raw materials can be quickly and efficiently added at regular time under the condition that the ram is not completely lifted up through limited separation design of the ram, and the raw materials in the internal mixing chamber are prevented from being splashed out during feeding.

The surgical retractor (10) comprises a support (12), a first arm (14) extending from the support, and a second arm (16) extending from the support, the first and second arms extending from a same side of the support and spaced apart from each other along the support. The surgical retractor (10) further comprises a first anatomy engaging member (42) having a first interior face (52) and a first exterior face (50), and a second anatomy engaging member (44) having a second interior face (52) and a second exterior face (50). The first anatomy engaging member (42) depends along its length from the first arm (14) whereby the first exterior face (50) faces away from the second anatomy engaging member (44). The second anatomy engaging member (44) depends along its length from the second arm (16) whereby the second exterior face (50) faces away from the first anatomy engaging member (42). Each of the first and second anatomy engaging members (42), (44) is formed from a plastics material. Each of the first exterior face (50) and the second exterior face (50) has a coating thereon, the coating comprising at least one haemostatic agent.

Apparatus and methods for coupling a rope socket with an armored cable. The armored cable includes a conductor core having one or more cables for transmitting electrical and / or optical signals and at least one layer of armor wires wound around the conductor core. The rope socket includes a housing having an uphole end through which the armored cable extends into the housing and a downhole end through which the conductor core extends from the housing to a component of downhole equipment suspended in a wellbore by the armored cable. The armor wires are arranged inside of the housing so that they are spaced apart at least locally from the conductor core. A plastic material disposed within the housing fills interstices each defined by one or more surfaces of one or more of the conductor core, one or more of the armor wires, and the housing.

A pest abatement wall plate includes a wall plate portion structured to cover an electrical box. The wall plate portion is formed substantially from a plastic material, and it has an inner surface and an outer surface. The inner surface is adjacent to an inside volume of the electrical box when the pest abatement wall plate is deployed. The pest abatement wall plate also includes a hosting platform proximate the inner surface of the pest abatement wall plate. The hosting platform arranged to stage a pesticide. Optionally, the pest abatement wall plate further includes a mounting structure and a hinge connecting the mounting structure to the wall plate portion.

The invention discloses a plastic refractory for repairing a furnace lining of an intermediate frequency furnace and a preparation method thereof, and belongs to the technical field of refractory materials for intermediate frequency furnaces. The plastic refractory comprises the following components in percentage: 20%-30% of alumina, 35%-45% of mullite, 5%-15% of kyanite, 5%-10% of a plasticizer, 3%-7% of glucose, 2%-5% of silicon nitride and 10%-15% of modified aluminum polyphosphate. Wherein the modified aluminum polyphosphate is prepared by the following method: reacting aluminum polyphosphate, silica powder, polyvinyl alcohol and water at 180-220 DEG C, and cooling to room temperature to obtain the modified aluminum polyphosphate. The plastic refractory for repairing the furnace lining of the intermediate frequency furnace is low in manufacturing cost, has excellent adhesive property, high temperature resistance and thermal shock resistance, further has the advantages of long service life, long storage time and the like, and solves the problems of poor adhesive property, short service life, short storage time and the like of the plastic refractory in the prior art.