163results about How to "High barrier" patented technology

The invention provides a high strength wood-plastic coated coextruded composite material. The material is composed of a core layer and a coating layer. The coating layer coats the surface of the core layer through a co-extrusion technology, biomass powder in the core layer is improved to a biomass fiber material, because of a large length-diameter ratio, the biomass fiber material not only plays a "filling" role in a wood-plastic composite material, but also plays a "reinforcing" role, greatly improves the mechanical properties of the composite material, especially improves the impact resistance, creep resistance and other properties, thereby broadening the application scope of the wood-plastic composite material. In addition, the coating layer involved in the invention preferably contains ethylene-methyl acrylate copolymer resin, ethylene-vinyl alcohol copolymer resin and high strength fiber, thus being conducive to further enhancing the mechanical properties of the composite material and the binding force with the core layer.

The invention provides a high-oxygen barrier property high-strength polyolefin heat conduction pipe and a preparation method thereof. The high-oxygen resistance high-strength polyolefin heat conduction pipe comprises, by weight, 100 parts of polyolefin resin, 0.1-5 parts of graphene slice layers, 0.1-15 parts of a compatilizer and 0.01-0.2 parts of an anti-oxidant. The graphene slice layers are uniformly distributed in the polyolefin resin in a ring way around a pipe central axis as a center. Through use of the graphene slice layers and a rotary core rod mouth mold, a polyolefin crystallization degree is high, a lot of oriented crystals are formed and pipe mechanical properties, heat conduction and heatproof performances are obviously improved. The graphene slice layers are uniformly distributed in the pipe in a ring way so that graphene slice layer obstruction performances are greatly improved and thus the good oxygen barrier property is kept under the condition of a very small amount of an anti-oxidant.

The invention discloses an isolation laminated packaging material, which comprises a base material layer component, a compound isolation layer component, an outer layer component or an inner layer component or an middle layer component, and a bonding layer component, wherein the base material layer component conducts a supporting function and at least contains a paper or polymer base layer; the compound isolation layer component is laminated on the inner side of the base material layer component, the compound isolation layer component at least comprises a repetitive unit prepared by layer-redoubling and co-extrusion which are realized by repeated cutting, re-lamination and convergence and a compound isolation layer at least containing two individual layers, at least one of the compound layers only contains two polymer components, and at least one component contains at least one isolation polymer; and the bonding layer component is used for bonding the component layers and all layers in the components. In the invention, the structure, performance and price of the packaging material are selected and designed by the selection of the component and the selection and design of the structure of each component, particularly the layer-redoubled co-extruded compound layer component. Compared with other conventional aluminum foil-free laminated packaging material, the isolation laminated packaging material has obvious advantages.

The invention discloses an anti-corrosion, anti-puncture and anti-short circuit melting through aluminum-plastic packaging film for lithium battery and a manufacture method thereof. The aluminum-plastic packaging film has a layer structure, comprises at least seven layers which are respectively to be a protecting layer A, an adhesive layer, a coating material layer, an aluminum foil layer, another coating material layer, another coating material layer and a heat-seal layer, and further comprises a protecting layer B arranged on the protecting layer A by the adhesive layer and/or a protecting layer C arranged between the coating material layer and the adhesive layer at the lower surface of the aluminum foil layer through another adhesive layer. According to the invention, the corrosion of electrolyte can be effectively stopped, the anti-puncture intensity, the tensile strength and the wear-resistant property of the aluminum-plastic film can be improved, the yield and the reliability of the battery can be improved, the heat-seal short circuit caused by the improper operation or the abnormal temperature of a machine during heat sealing can be completely avoided, and the service life of the battery can be greatly prolonged, so that the invention is high in reliability.

The invention discloses a laminated material without metal foil for a blocking package. The material at least comprises a substrate layer assembly and a composite blocking layer assembly, wherein the substrate layer assembly and the composite blocking layer assembly are laminated together; the substrate layer assembly has the effect of supporting; and the composite blocking layer assembly comprises at least one composite blocking layer which is prepared through a partition-laminated confluence layer multiplication and coextrusion method and comprises a plurality of repeated units. The material is characterized in that each repeated unit at least comprises three polymer constitutes, and each polymer constitute can form an individual layer or more than one individual layer; and only one of the polymer constitutes is a blocking polymer constitute which can block gas.

The invention discloses an inorganic matter-filled poriferous composite membrane for a liquid flow energy-storage cell and a use thereof. The inorganic matter-filled poriferous composite membrane for a liquid flow energy-storage cell is characterized in that one or more of organic polymer resins and sulfonated organic polymer resins are prepared into a poriferous diaphragm as a matrix; inorganic matter particles are filled into apertures of the matrix so that the inorganic matter-filled poriferous composite membrane is obtained; and the inorganic matter particles are prepared from one or more of silicon oxide, zirconia, titanium oxide, lead oxide, tungsten oxide and zirconium phosphate. The inorganic matter-filled poriferous composite membrane can be prepared by simple processes, has controllable apertures, is suitable for large-scale production, has high ion selectivity, hydrophily and ion conductivity, can realize ion transport without introduction of any ion exchange groups, and broadens a selection scope of liquid flow energy-storage cell membrane materials.

The invention relates to the technical field of biodegrade mulching films, in particular to a high-barrier full-biodegrade mulching film and a preparation method thereof. The mulching film is prepared from, by weight, 15-40 parts of PPC, 25-65 parts of PBAT, 10-47 parts of PHBH, 3-10 parts of plasticizer, 3-8 parts of inorganic filler, 0.2-1 part of crosslinking agent, 0.1-1.2 parts of light stabilizer, 0.1-1.2 parts of antioxidant, 0.3-2 parts of lubricant and 0.015-0.08 part of coupling agent, wherein the coupling agent is 0.5-1% of the inorganic filler in weight. The preparation method comprises the steps of filler surface treatment, material drying, mixing, melt extruding for granulation and blow inflation for molding. The PHBH, the PPC and the PBAT in the mulching film are compounded and blended, the components complement each other's advantages, the barrier property is good, the mechanical mechanics performance, use effect and heat preservation and moisturizing properties can meet the requirements of general mulching films, the high-barrier full-biodegrade mulching film can be decomposed completely within 1 year and is simple in preparation process.

The invention discloses a subnanometer enhanced and toughened transparent master batch and a preparation method thereof. The subnanometer enhanced and toughened transparent master batch comprises the following components in percentage by weight: 70-85 percent of subnanometer powder, 1-5 percent of dispersing agent, 0.3-1 percent of lubricating agent, 1-3 percent of coupling agent, 0.3-0.5 percent of thermal stabilizing agent, 0.1-0.5 percent of antioxidant and 10-25 percent of carrier resin. The preparation method comprises the following steps of: putting the subnanometer powder into a high speed mixer, selecting a high gear for stirring and heating, adding the coupling agent and treating for three minutes, then adding other raw materials, discharging and cooling after the raw materials are evenly stirred and mixed by the high speed mixer, then crushing, and extruding and pelleting through an extruding and pelleting device. The invention solves the problem that the mechanical performance of a plastic film is reduced after the common master batch is used in the prior art, in particular the problem that the light transmittance and the transparency are reduced; the mechanical performance of a film product is improved at the same time of reducing the cost; meanwhile, the invention achieves the purposes of enhancing and toughening and can be used in the fields of foods and medicines.

The invention discloses a blocking thermoplastic polyurethane (TPU)/functional graphite oxide composite film and a preparation method thereof. The method comprises the following steps: firstly, preparing graphene oxide by adopting an improved hummers method, and then carrying out organic modification on the graphite oxide by using different fluorine ketone diisocyanate to obtain functional graphite oxide; finally, compositely building a film on a film coating machine by using the functional graphite oxide and TPU. By adopting the composite material film prepared by the method disclosed by the invention, the functional graphite oxide can be evenly dispersed into a TPU substrate as a good impermeable material, so that the composite film has good ability of blocking small molecule materials such as vapor, oxygen and the like, the barrier property is greatly enhanced, the mechanical property is also definitely improved, the film is good in transparency, and he blocking TPU/functional graphite oxide composite film can be widely applied to the fields such as food packaging and drug packaging encapsulation materials and the like. The blocking TPU/functional graphite oxide composite film is scientific and reasonable in preparation method, simple in process, and strong in maneuverability, and industrial production can be carried out on a large scale.

The invention discloses an insoluble modified polyvinyl alcohol coating liquid and preparing method and film through the coating liquid, which comprises the following parts: polyvinyl alcohol, modifier, inorganics, crosslinking agent, catalyst and water. The coating liquid improves levelling, adhering and even property greatly, which increases obstruct property for kinds of gas.

The invention discloses an aminated graphene oxide/high-density polyethylane nano composite membrane and a preparation method thereof, which belong to the technical field of high-molecular composite material. A technical scheme is characterized in that graphene oxide and lauryl amine are reacted to prepare the aminated graphene oxide, the aminated graphene oxide and high density polyethylane powder are fully mixed in xylene to prepare a fluid suspension, pumping filtration under vacuum and drying processes are carried out on the fluid suspension, melting hot-pressing treatment is carried out, so that the aminated graphene oxide/high-density polyethylane nano composite membrane is prepared. According to the invention, technology is simple, cost is low, a polymer is not required for being dissolved, and interface compatibility of between the nano composite membrane and a polar polymer/a non-polar polymer can be effectively increased. Simultaneously, a shell-core isolation structure which is characterized in that the aminated graphene oxide is taken as a shell and high density polyethylane is taken as a core can be formed through high-temperature hot pressing, gas permeable area can be greatly reduced, gas diffusion path can be obviously complicated, and the gas barrier property of the material can be obviously increased.

The invention discloses a high-performance polyglycolic acid-based composite material and a preparation method thereof, and belongs to the technical field of polymer processing. A compatilizer is added, so that the interfacial interaction force between a polyglycolic acid matrix and degradable polyester B is remarkably improved, and the toughening effect of the degradable polyester B is further remarkably improved in cooperation with a specific blending process; in addition, an added functional filler is subjected to an in-situ reaction with a polyglycolic acid matrix, so that dispersion is promoted, a crystallization effect is favorably provided, and the heat resistance of the composite material is better improved. The polyglycolic acid composite material disclosed by the invention is high in material toughness, strength and heat resistance, and can be applied to the field of equipment manufacturing and packaging of high-performance degradable materials.

The invention discloses a flame retardant polypropylene material, relating to the technical field of high molecule plastics. The flame retardant polypropylene material comprises the following compositions in percentage by weight: 25-50 percent of high fluidity homo polypropylene, 25-50 percent of high fluidity propylene copolymer, 10-33 percent of flame retardant, 5-30 percent of inorganic strengthening agent, 1-10 percent of barrier additive, 0.1-3 percent of heat resistance strengthening agent, 0.1-4 percent of antioxygen and nucleating agent, 0.1-3 percent of compound pigment and 1-5 percent of internal and external lubricant. The flame retardant polypropylene material reaches V0 grade flame retardation property without lowering the mechanical performance of the material and has good heat resistance and good anti-seep performance.

This invention discloses a process for preparing a nylon/clay nanocomposite fuel tank. In the process, in situ polymerization is employed for the insertion into the interlayers of the nanocomposite so that clay can be dispersed to the degree of nanoscale in the nylon matrix, which results in a very large interfacial area. The ideal adhesion between the dispersed inorganic phase and the polymer matrix can eliminate the problem of thermal expansion coefficient mismatch between the inorganic phase and the polymer matrix, and sufficiently exploit the intrinsic good mechanical properties and heat durability of the inorganic phase. The composite fuel tank prepared by this invention exhibits improved heat-resisting property while has little influence on the mechanical properties of the matrix material.

The invention discloses PVC/PE/PVCD solid medicine using composite hard sheet manufacturing technology. It includes the following steps: unreeling for PVC basis material; corona treatment for its surface; coating adhesive; drying; unreeling for PE film; compositing the PVE basis material and PE film; solidifying; dying; corona treatment for the PE film surface; coating adhesive; coating PVCD glue; drying to form PVCD film; repeating coating the PVCD glue on the PE film; drying; rolling, solidifying to form PVCD film again; patting cut and detecting.

The invention provides a nano aqueous interior wall heat insulation paint and a preparation method thereof, which belong to the technical field of production of aqueous paint. The nano aqueous interior wall heat insulation paint comprises the following components in percentage by weight: 20 to 35 percent of emulsion, 20 to 30 percent of nano calcium carbonate, 8 to 16 percent of nano oxide composition, 0.2 to 2 percent of thickening agent, 0.5 to 2 percent of wetting and dispersing agent, 0.1 to 0.5 percent of antifoaming agent, 0.5 to 2 percent of anti-freezing agent and the balance of water. The preparation process comprises the following steps of: uniformly stirring the water, the dispersing agent, glycol and half the antifoaming agent at a low speed, sequentially adding the nano calcium carbonate and the nano oxide composition with stirring; uniformly stirring the nano calcium carbonate and the nano oxide composition and uniformly dispersing the mixture by shearing the mixture on a multifunctional disperser at a high speed; slowly adding the emulsion dropwise at a low stirring speed; subsequently adding the remaining antifoaming agent and the thickening agent; and uniformly stirring and mixing the mixture at the low speed. The heat insulation paint of the invention comprises the water serving as a solvent, does not contain an organic solvent, and has the advantages of low VOC content, simple preparation process and wide application.

The invention discloses an imvite/natural rubber composite and a preparation method thereof. 100 parts of imvite/natural rubber comprise 5-50 parts of modified imvite by weight, wherein the modified imvite comprises the following components in parts by weight: 100 parts of organic imvite, 5-20 parts of graphene, and 0.5-2 parts of coupling agent. The imvite is dispersed in the natural rubber by a lamellar structure, thus improving both the property of the rubber composite and barrier property of the rubber material, and remarkably lowering the production cost of the rubber. The preparation method is simple and efficient, and expands the application range of the natural rubber.

A degradable medical multilayer composite packing film uses modified polyester, modified polyamide, and polyvinyl alcohol as baffle layer, adds optical degrade agent and biological degrade agent into polyolefin to control degradation. The invention is characterized in that the film comprises 10-12 layers, which uses nanometer nontoxic modified molecule material and degradable PVA resin as baffle layer. The inventive product has high insulation, degradable property, nontoxic property, high temperature resistance or the like.

The invention discloses water-based high-barrier coating liquid and a production method thereof. The water-based high-barrier coating liquid comprises 0.5-15 parts of a hydroxy group-containing water-soluble polymer, 0.1-15 parts of a nanometer oxide, 0.01-10 parts of graphene, 0.01-5 parts of an organic siloxane coupling agent, 0.1-30 parts of 0.1-mol/L diluted hydrochloric acid and 30-95 parts of a solvent. According to the water-based high-barrier coating liquid and the production method thereof, nanometer oxide particles produced through a sol-gel method are used as a small-size polymerization inhibitor, and are loaded onto the surfaces of the graphene by means of physical adsorption, and polymerization among the graphene can be inhibited, so that the problem of poor dispersity of thegraphene is solved; and by using cross linking of the nanometer oxide and the water-soluble polymer, the synergistic enhanced barrier action of the graphene/polymer on gas is given full play to. Moreover, a process of the production method of the water-based high-barrier coating liquid is simple and easy to implement, and a produced film material has good mechanical performance and package printing performance at the same time, and can be applied to a wide variety of fields of medicines, food, electronic product packaging, encapsulation and the like.

The present invention discloses one kind of modified PVA paint, which consists of PVA, regulator, inorganic matter, tackifier and water. The tackifier is polyethylene imine and/or polyoxyethylene; the inorganic matter is clay and/or nanometer titania or the mixture of clay, nanometer silica and nanometer titania. The preparation process includes mixing PVA, regulator, inorganic matter, and water through stirring, heating to and maintaining at 90-95 deg.c to dissolve PVA completely, cooling to normal temperature, and adding tackifier through stirring. The product of the present invention has excellent machinability, and the formed coating has high water resistance, excellent ultraviolet ray and infrared ray reflecting property, high wear resistance and other excellent performance.

The invention provides a gas barrier easy-demolding fully biodegradable beverage bottle production method which includes the steps: raw material modification: adding plastic additives into fully biodegradable materials, mixing the plastic additives and the fully biodegradable materials according to a certain proportion, and performing granulation for the mixture; processing plastic master batches: uniformly mixing the mixture, and processing the mixture into the plastic master batches; blowing bottles; performing surface treatment of the bottles. The plastic additives are at least one in chain extenders, nucleating agents, plasticizers and plastic expansion microspheres, the fully biodegradable materials include powder biodegradable materials which are at least four in PLA (polylactic acid), PBS (poly butylene succinate), PHA (polyhydroxyalkanoate), PBSA poly(butylene succinate adipate), PBAT (poly butylene adipate-co-terephthalate) and starch, and blowing bottles include blowing the bottles by extrusion and blowing the bottles by injection molding.

The invention discloses a preparation method for anthraxolite foam material, which comprises following steps: pyrolising and preparing intermediate phase asphalt, adding clay addition agent to adjust performance; putting the product into high-pressure reaction kettle, evacuating and heating to asphalt softening point, holding for 1~180min at 300~600Deg and 10~80kg/cm2; cooling naturally to room temperature; foaming at common temperature to obtain asphalt foam material; carbonizing the product and finally obtaining the objective product, which has well performance and fit to industrial production.

The invention relates to a hydrogen sulfide corrosion-resistant water-swellable rubber and a preparation method thereof. The hydrogen sulfide corrosion-resistant water-swellable rubber is characterized in that the hydrogen sulfide corrosion-resistant water-swellable rubber consists of the following components by parts by weight: 100 parts of natural rubber, 20-60 parts of crosslinked sodium polyacrylate, 2-15 parts of organic montmorillonite, 3-8 parts of zinc oxide, 20-35 parts of filling agent, 2-5 parts of softener, 1-3 parts of vulcanizing agent, 0.5-2 parts of vulcanization accelerator and 0.5-1.5 parts of anti-aging agent. The prepared hydrogen sulfide corrosion-resistant water-swellable rubber has excellent hydrogen sulfide corrosion-resistant capacity.

The invention discloses a co-extruded and bidirectional-stretched composite film, which has a three-layered structure, namely a homopolymer or copolymer polypropylene resin assistant barrier layer, a homopolymer polypropylene resin assistant barrier layer containing adhesive resin and an ethylene-vinyl alcohol copolymer resin main barrier layer in turn, or a homopolymer polypropylene resin assistant barrier layer, an ethylene-vinyl alcohol copolymer resin main barrier layer and a homopolymer or copolymer polypropylene resin assistant barrier layer containing adhesive resin in turn, wherein the composite film is formed by co-extruding the three-layered structure and then stretching bi-directionally. The composite film provided by the invention has the combined advantages of high stretching intensity and good optical performance of the polypropylene resin layer and the advantage of high barrier property of the ethylene-vinyl alcohol copolymer resin layer, so that a film material with extremely high permeability resistance to oxygen, carbon oxygen, fragrance, smells, aqueous vapor and the like, high toughness and high antistatic property is obtained; the film is thin; the manufacturing cost is low and the yield is high.

The invention discloses a plant empty capsule and a preparation method thereof. The plant empty capsule takes soy isolate protein, soybean polysaccharide and bagasse cellulose which are of different proportions as main raw materials. The preparation method comprises the following steps of a. after mixing the soy isolate protein, the soybean polysaccharide and nanometer bagasse cellulose, and adding a plasticizer so as to prepare and obtain a glue solution I; b. adding a gelling agent and a coagulant aid into deionized water so as to prepare and obtain a glue solution II; c. mixing the glue solution I and the glue solution II so as to prepare and obtain a glue solution III; d. putting the glue solution III at 40-50 DEG C and decompressing and defoaming; and e. preparing the empty capsule through a membrane dipping manner.

The invention provides a condom, comprising a barrel provided with an open end and a closed end, wherein the barrel is composed of three elastic adhesive films which are integral and are an inner layer adhesive film, a middle layer adhesive film and an outer layer adhesive film from inside to outside respectively, and the middle layer adhesive film is a water-soluble polyurethane adhesive film or a polyisoprene adhesive film. The invention also provides a preparation method of the condom. The condom provided by the invention is improved in barrel structure and material, thus the comprehensive performances of the adhesive films are effectively improved and the condom provided by the invention has high barrier property; and meanwhile, the preparation process is simple.

The invention discloses a polyvinyl alcohol coating liquid for preparing high-barrier anti-boiling film, made from, by weight, 3-12 parts of polyvinyl alcohol, 75-95 parts of water, 0.6-3.5 parts of acrosslinker, 0.1-2 parts of a defoaming agent, 0.1-1 part of a leveling agent, 0.05-1 part of a dispersing agent, 0.01-0.5 part of a catalyst, 5-15 parts of an adjusting agent, and 0.1-3.0 parts of nanoparticles. Compared with the prior art, the coating liquid and the preparation method thereof have the advantages that the coating liquid is present in high-transparency low-viscosity state, has weak acidity, never corrodes equipment and is environmentally friendly, and the process is simple; a coating layer has small thickness, high drying speed, high strength of bonding with base surface, andexcellent barrier performance; the coating liquid has stable viscosity, has no significant change in viscosity within 2 months; the coating liquid has excellent water resistance, and after boiling at100 DEG C for 60 min, barrier performance of coating film can be maintained well.

The invention discloses environment-friendly high-barrier packaging paper and a preparation method thereof. The packaging paper comprises a base paper body and a coating applied on the surface of the base paper body; coating liquid is uniformly applied on the surface of the base paper body and single-sided coating is adopted; after coating is completed, the coated paper is immediately put into a drying box for drying; finally, the dried coated paper is placed in a constant-temperature and constant-humidity box for rewetting treatment, and the packaging paper is obtained. The base paper body prepared by mixing plant fiber and mucor fiber not only has high physical strength and good hydrophobic performance, but also is free of toxics, environmentally friendly and easy to degrade. By coating the surface of the base paper body with the coating liquid, the coating liquid fills paper fiber gaps, a dense film is formed on the surface of the paper, and the physical strength and barrier performance of the packaging paper are improved. An antibacterial agent in the coating liquid can make the packaging paper endowed with good antibacterial performance, and the packaging paper which is easy to degrade, free of toxics, environmentally friendly, good in antibacterial performance and high in barrier performance is prepared.

The invention relates to a screw pump rubber stator material and a preparation method thereof. The invention solves the problems of high cost and poor mechanical property existing in the prior art of only adopting hydrogenated nitrile-butadiene rubber as the raw material to prepare a screw pump rubber stator. The screw pump rubber stator material is prepared from HNBR, OMMT, nanometer zinc oxide, stearic acid, DBPH-50, SR521, Ricobond 1756, Kyowamag150, N550, N774, Naugard 445, Vulkenox ZMB-2, G-25, T-ZnOw and Aktiptast PP. The method comprises the following steps: 1, weighing the raw materials; 2, melting, intercalating and then mixing HNBR and OMMT after being mixed, mixing continually after adding remaining raw materials; 3, repeating the step 2 to obtain photographic film, vulcanizing after air cooling for 16 hours to obtain the screw pump rubber stator material. The invention has the advantages of simple process, low cost and good mechanical property of the obtained material.

The silane crosslinked polyethylene pipe union includes a silane crosslinked polyethylene pipe body produced by using the material comprising at least organosilicon monomer as grafting initiator, hydrolytic polycondensation catalyst and polyethylene as well as through extrusion or injection and reaction of crosslinking polycondensation and with spigots added. It is used to consitute permanent connection with silane crosslinked polyethylene pipe.