1021 results about "Moisture resistance" patented technology

The invention provides a bio-based adhesive and a preparation method thereof. Inspired by a spider thread structure, biomass adhesive interface enhancement based on a tannic acid adhesion group is combined with construction of a differential phase separation structure by biomass-induced polylipoic acid depolymerization, and a brand new strategy of adhesion-cohesion synergistic enhancement of the adhesive strength of the adhesive is realized. According to the invention, tannic acid and carboxymethyl chitosan are introduced into a lipoic acid-based adhesive, so that the purpose of synergistically enhancing the bonding performance of the adhesive through adhesion-cohesion is achieved, and the defects of weak cohesion, low bonding strength, poor water resistance, poor moisture resistance and the like of the conventional biomass adhesive are overcome. Benefited from a new strategy of adhesion-cohesion synergistic enhancement, the biomass adhesive has good adhesive strength in various environments and materials. In addition, the biomass adhesive also has the characteristics of biological safety, antibacterial and mildew-proof properties and recoverability, so that the product has wider application and potential compared with the previous product, and has a good application prospect.

A high-temperature-resistant and aging-resistant polyurethane material and a preparation method therefor. The polyurethane material comprises the following components in parts by mass: 21-27 parts of a modified polyurethane resin, 10-15 parts of a phenolic resin, 10-15 parts of an epoxy resin, 16-20 parts of a modified solid filler, 7-13 parts of a curing agent, 1-2 parts of a defoaming agent, 1-3 parts of a wetting agent, 0.7-1 part of a leveling agent, and 5-10 parts of water. The high-temperature-resistant and aging-resistant polyurethane material has excellent temperature resistance and moisture resistance, high aging resistance, and strong adhesion to a glass surface and can be used as a coating with which a glass surface is coated.

The invention discloses a solid electrolyte, a preparation method thereof and an all-solid-state battery, and belongs to the technical field of solid electrolytes. According to the preparation method, a nano inert oxide and a solid electrolyte raw material are compounded through mechanical grinding, and the solid electrolyte with a core-shell structure is prepared; the device comprises an inner core, an interface layer and a shell from inside to outside, the inner core is a solid electrolyte matrix, the interface layer is a transition layer generated by reaction of the solid electrolyte matrix and a nano inert oxide, and the shell is a nano inert oxide layer. The material combines the advantages of high moisture resistance and wide electrochemical window of the nano inert oxide and the characteristics of high ionic conductivity and excellent mechanical property of the solid electrolyte, and the comprehensive performance of the material is remarkably improved through the synergistic effect of the components. The composite structure design not only solves the problem of performance limitation of a single material system, but also realizes collaborative optimization of ionic conductivity, environmental adaptability and electrochemical stability while ensuring the material stability.

The invention relates to the technical field of capacitor films. The invention discloses a preparation process of a multilayer polypropylene capacitance film, which comprises the following steps: S1, raw material preparation: preparing basic resin, a nano ceramic filler, a nucleating agent and an antioxidant into multilayer raw materials respectively; s2, fusing multiple layers of raw materials by an independent screw extruder, and compounding by a co-extrusion die head to form a film blank; and S3, carrying out air ring gradient cooling on the film blank. And S4, longitudinally and transversely stretching the film blank. And S5, performing heat setting in a segmented heating furnace, and performing corona treatment to improve surface energy. And S6, segmentally curing the moisture-proof coating by using an infrared oven. The multilayer heterostructure is adopted, the comprehensive performance of the capacitor film is improved through material matching, the dielectric constant, the breakdown strength and the moisture resistance are enhanced, and the problem of considering the dielectric property and the mechanical property is solved. The innovative process guarantees stable performance, is compatible with an existing production line, can realize large-scale production, meets the requirements of fields such as new energy and the like, and provides a feasible scheme for localization of high-performance capacitor films.

The invention relates to a preparation method of a normal-temperature normal-pressure efficient gas adsorption composite material. The method comprises the following steps: firstly, pretreating activated carbon to obtain surface-OH modified mesoporous activated carbon; then modifying the surface-OH modified mesoporous activated carbon with the ZIF-8 material to obtain ZIF-8 (at) OH-AC; and finally, performing surface hydrophobization modification to obtain the adsorption material. Wherein in the modification process, ZIF-8 is firmly loaded and uniformly distributed on the surface of hydroxyl-modified mesoporous activated carbon by adopting an in-situ growth technology, the interface bonding force is enhanced, the loading capacity of the activated carbon on the MOFs material is improved, and by utilizing the chemical adsorption effect of ZIF-8 Zn < 2 + > and methane and the high porosity of the mesoporous activated carbon, the MOFs material can be prepared. The adsorption capacity of the composite material to methane is greatly improved, meanwhile, the moisture resistance of the composite material is effectively improved, the composite material can still keep stable and efficient adsorption performance in a high-humidity environment, and the problem that an existing material is prone to inactivation in a humid environment is solved.

The invention discloses a natural eutectic solvent enhanced konjac glucomannan film as well as a preparation method and application thereof, and belongs to the technical field of food packaging. The konjac glucomannan film enhanced by the natural deep eutectic solvent, provided by the invention, comprises konjac glucomannan, the natural deep eutectic solvent and gallic acid modified MXene nanoparticles; the mass ratio of the konjac glucomannan to the natural eutectic solvent to the gallic acid modified MXene nanoparticles is (850 to 950) to (50 to 250) to (10 to 40). Through the synergistic effect of all the components, the defects that KGM is insufficient in intrinsic mechanical strength, weak in antibacterial and antioxidant performance and poor in moisture resistance are overcome, the comprehensive performance of the film is remarkably improved, and the film can be used for cold-chain packaging of high-value fresh food and has environment friendliness and functional practicability.

The invention discloses a high-strength moisture-proof gypsum board and a preparation method thereof, and relates to the technical field of gypsum board preparation. The high-strength moisture-proof gypsum board is prepared by dipping the surface paper in the composite dipping liquid and then pouring the surface paper and the gypsum core with the waterproof agent, the composite dipping liquid comprises the methoxy vinyl ether copolymer and the epoxy polyoxymethylene dimethyl ether, and the methoxy vinyl ether copolymer is 2, 3, 5-trimethyl-1, 3-pentanediol monoisobutyrate. According to the present invention, epoxy polyoxymethylene dimethyl ether is prepared by reacting 2, 4-dimethoxymethoxyphenylacetic acid with 2-hydroxyethyl vinyl ether, and the epoxy polyoxymethylene dimethyl ether is prepared by terminating polyoxymethylene dimethyl ether with allyl and then reacting with phthalimide hexperoxy acid, such that the waterproofness and the mechanical property of the gypsum board are improved; the waterproof agent is prepared by reacting hydrogen-containing silicone oil and fluorine-containing hyperbranched amide polyurea urethane, so that the moisture resistance and bonding strength of the gypsum board surface paper are enhanced, and additional mechanical support is provided for the gypsum board.

The invention discloses a low-temperature-resistant bending-resistant cable for new energy, relates to the technical field of cables, and solves the problem of short service life of a cable caused by poor protection performance and durability of the cable for new energy in the prior art. Comprising an inner core structure, the inner core structure comprises a conductor layer, the conductor layer is composed of a plurality of conductors distributed in an array, and each conductor is wrapped by an insulating layer; the cable is characterized in that the outer part of the inner core structure is wrapped with a wrapping shielding layer; the outer sheath wraps the wrapping shielding layer, the outer sheath comprises a low-temperature-resistant layer, a buffer layer, a supporting layer and a reinforcing layer, the low-temperature-resistant layer wraps the lining layer, the buffer layer wraps the low-temperature-resistant layer, and the supporting layer wraps the buffer layer and is located on the inner side of the reinforcing layer; the cable is kept stable at extreme temperature, stress damage can be reduced, the cable is not hardened at low temperature and can be tightly attached to form sealing, and moisture resistance is improved.

The invention discloses a UV curing adhesive for coating a low-refractive-index optical fiber and a processing method thereof, belongs to the technical field of adhesive preparation, and is used for solving the technical problem that the refractive index and the damp-heat resistance of the UV curing adhesive for coating the optical fiber in the prior art need to be further improved. The preparation method comprises the following steps: introducing a low-refractive-index hybrid siloxane prepolymer, a multi-component interface bonding prepolymer and a modified branched polyester prepolymer into a system together, and constructing a compact and uniform organic-inorganic three-dimensional network in a curing process by utilizing silica condensation, interface chemical bonding and a flexible chain segment cross-linking reaction, the low-refractive-index hybrid siloxane prepolymer endows a film layer with a stable refractive index, the multi-component interface bonding prepolymer enhances the binding force of a base material, the modified branched polyester prepolymer improves stress buffering and toughness, and the obtained cured film is low in refractive index, firm in interface bonding and small in mass change in a humid and hot environment and shows excellent optical stability and long-term reliability.

The invention relates to the technical field of electronic packaging materials, in particular to a phthalonitrile modified thermosetting resin composition containing a siloxane structure and application of the phthalonitrile modified thermosetting resin composition in the electronic packaging materials. The composition comprises multifunctional epoxy resin, XYLOK phenolic resin, a curing accelerator, a modifier and an inorganic filler, and the modifying agent is eugenol phthalonitrile trisiloxane. The modifier disclosed by the invention has good mechanical compatibility and dispersity in matrix resin; when the epoxy resin is applied to a thermosetting resin system, the processability can be improved, and the toughness of a cured product can be effectively improved while the glass-transition temperature is increased, so that the cured product has excellent bending property; the composition has excellent thermal stability, low bending modulus, good impact performance and humidity and heat resistance after being cured, the glass transition temperature of the composition is effectively improved, the comprehensive performance of resin is remarkably improved, and the composition is suitable for improving the packaging reliability and environmental stability of semiconductor devices.

The invention relates to the technical field of semiconductor packaging materials, in particular to a resin composition for sealing an electronic device, and the existing epoxy resin composition comprises solid / powder nanoscale filler so as to reduce CTE and inhibit the exudation problem. However, it is very difficult to add a solid / powder nanoscale filler to an epoxy resin composition, which will result in a sharp increase in overall viscosity and even unable to mix evenly. By adding the colloid filler, the viscosity of the prepared resin composition is low, which means that the filler loading capacity in the resin composition (bottom filler) can be further increased, and the overall excellent moisture resistance and better temperature resistance of the composition can be improved. In addition, since the loading amount of the filler is increased, the CTE of the cured resin composition is reduced, and thus the reliability of the cured resin mixture can be improved.

The invention belongs to the field of food additives-compound coating agents and medicine solid preparation thin film coating premixing agents, and relates to a preparation method of a solid dispersion and a water-based gastric-soluble efficient moisture-proof coating composition containing the solid dispersion. According to the solid dispersion provided by the invention, stearic acid and magnesium stearate are selected as indissolvable components, polyglycerol fatty acid ester is used as a surfactant, hydroxypropyl methylcellulose / hydroxy propyl cellulose / sodium alginate is used as a carrier, and a grinding process is combined to treat the raw materials, so that a good synergistic effect is formed among the components; and the solid dispersion which can be stably amorphized is prepared. Tests find that the content of insoluble components in the prepared solid dispersion is obviously improved unexpectedly, and a coating composition of a carrier containing the solid dispersion has extremely excellent moisture resistance after film formation.

The invention discloses a moisture-proof corrugated paper generation method and system based on machine vision. Humidity distribution data are obtained through image acquisition equipment, uniformity deviation characteristics are extracted through an image processing algorithm and input into an intelligent analysis model, and if deviation exceeds a threshold value, a coating thickness adjusting signal is output to determine the spraying amount of a moisture-proof agent; then, on the basis of the spraying amount, a structural integrity image in the forming stage is collected, deformation parameters are extracted, a production parameter optimization instruction is generated through a feedback verification unit in combination with the effect mapping relation model, an execution mechanism is driven to adjust the pre-drying temperature and the forming pressure, and meanwhile finished product moisture resistance detection data are obtained; finally, a closed-loop regulation and control cycle is formed through detection data and deviation characteristics, model parameters are optimized, deviation changes are continuously monitored, the mapping model is dynamically adjusted to adapt to different paper types, intelligent real-time optimization is achieved, and the production efficiency and the moisture-proof performance stability are improved.

The invention discloses polyurethane glue with heat conduction and insulation characteristics for a self-adhesive label and a preparation method of the polyurethane glue, raw materials of the glue comprise a polyurethane prepolymer, an organic silicon modifier, nano montmorillonite and the like, and a glue layer has a structure in which a heat conduction compact phase and an insulation porous phase are combined with each other. The organic silicon modifier endows hydrophobicity, and the nano-montmorillonite hinders moisture permeation, reinforces the fiber to support a cellular structure and improves mechanical properties. The preparation method comprises the following steps: preparing a polyurethane prepolymer, modifying organic silicon, dispersing nano montmorillonite and the like, and synergistically improving various properties of the glue by controlling the conditions of each step and the ratio of raw materials. The glue disclosed by the invention is excellent in moisture-proof, heat-conducting, insulating and mechanical properties, can meet the use requirements of the self-adhesive label in a complex environment, and solves the problems that the existing glue is single in performance and cannot meet high-end application scenes.

The invention relates to a damp-proof multifunctional air bubble film packaging bag which comprises a first air bubble film and a second air bubble film which are oppositely arranged, the first air bubble film and the second air bubble film comprise the first air bubble film and the second air bubble film which are oppositely arranged, and the three edges of the first air bubble film and the three edges of the second air bubble film are connected with edge sealing layers in a sealed mode. A top sealing structure is arranged on the outer surfaces of the upper ends of the first air bubble film and the second air bubble film, a fixing strip is fixedly connected to the inner surface of the front end of the top sealing structure, and the top sealing structure comprises a second sealing strip and a first sealing strip. The packaging bag has the beneficial effects that many defects of a traditional packaging bag in the aspects of moisture resistance and sealing performance are effectively overcome, the packaging bag has excellent physical protection performance and functional characteristics through the design of the six-layer functional composite film structure, the durability of the packaging bag is greatly improved through the arrangement of the anti-abrasion layer, and the effect that damage caused by friction in the transportation process is avoided.

The invention relates to the field of high polymer materials, and particularly discloses a high-oxygen-barrier moisture-barrier PE film and a process. The high-oxygen-barrier moisture-barrier PE film comprises a corona layer, a barrier layer and a heat sealing layer which are connected in sequence, the barrier layer comprises the following raw materials in parts by weight: 90-95 parts of polyethylene and 5-10 parts of polyvinylidene chloride, and the heat sealing layer is made of a polyethylene material; in addition, the preparation method provided by the invention has the advantages that the oxygen and moisture resistance of the polyethylene single film is improved, and meanwhile, the printing requirement is met.

The utility model relates to the technical field of carton structures, in particular to a waterproof and moistureproof coating carton structure, which comprises a carton body and is characterized in that at least two pairs of oppositely arranged double-layer folding cover plates are arranged at the top of the carton body, soft sealing strips are arranged on the long edges of the periphery of the top of the carton body, a moistureproof lining partition plate is arranged in the carton body, and the waterproof and moistureproof coating carton structure is arranged in the carton body. According to the utility model, a multi-layer structure is adopted to realize omnibearing water resistance and moisture resistance, the surface of the box body is coated with a polyurethane waterproof coating, and the top of the box body is provided with a double-layer folding cover plate and a sealing strip to reinforce sealing; honeycomb PP plastic partition plates are arranged inside to achieve dry and wet isolation. The bottom adopts a waterproof base matched with an arc-shaped diversion trench to discharge accumulated water; a disposable humidity sensing label is arranged to monitor humidity in real time; the cover plate is formed by compounding craft paper and PE coated paper, so that the cover plate is high in strength and moisture-proof; the handle holes are provided with double-layer reinforcing ribs to improve the bearing capacity. The structure integrates waterproof, moisture-proof and load-bearing functions and the like, and meets the use requirements of complex environments.

The invention relates to a flash evaporation material with high transparent strength and a preparation method thereof, the flash evaporation material comprises the following raw materials: polyethylene with high transparent strength of 0.2-3 kN / m; the high-permeability strength is equal to the moisture permeability index * the longitudinal tensile strength; the test standard of the tensile strength is a constant-speed tensile method for testing the tensile strength of paper and paperboards according to GBT 12914-2018; the test standard of the moisture permeability index is GB / T 11048-2018 determination of thermal resistance and moisture resistance (evaporation hot plate method) under the physiological comfort steady state condition of the textile. The flash evaporation material disclosed by the invention has relatively good high-transmittance strength.

The invention discloses a moisture-proof and heat-insulating refractory material and a preparation method thereof, and relates to the technical field of refractory materials, and the moisture-proof and heat-insulating refractory material comprises dolomite, nano silicon dioxide, silica, an anhydrous binder and a moisture-proof agent. The synthesized moisture-proof agent is obtained by modifying asphalt through modified SBS obtained by grafting SBS and a monomer product containing terminal carbon-carbon double bonds, phosphate and a phthalonitrile structure, and has excellent flame retardance, high temperature resistance and waterproofness. And by using the nano silicon dioxide, the heat insulation performance of the refractory material can meet the requirements. The refractory material disclosed by the invention is excellent in refractoriness and moisture resistance and worthy of popularization and application.

To solve the problem in which a 3 mm thick, ultra-thin insulation material utilizing aerogel, the first of the technologies supporting this invention, is an excellent material that exhibits high thermal insulation effect upon installation in building walls, ceilings, or floors even when used alone, yet its limited strength restricted its applications.SOLUTION: By sandwiching an aerogel insulation material, whose limited strength previously restricted its applications, between two layers of reinforced corrugated cardboard to form a plywood material, strength, which had been the biggest challenge, is enhanced. Furthermore, combining the inherent properties of aerogel and reinforced corrugated cardboard creates a synergistic effect. This not only further strengthens thermal insulation but also, while maintaining lightweight characteristics, provides soundproofing, moisture resistance, shock absorption, fire resistance, and fireproofing, etc. This dramatically increases applicability and versatility as a material.SELECTED DRAWING: Figure 1

The invention provides a high-temperature-resistant and high-humidity-resistant double-sided tape for bonding a PC (Polycarbonate) base material. The high-temperature-resistant and high-humidity-resistant double-sided tape has a four-layer structure, namely a first adhesive layer, a reinforced body layer, a second adhesive layer and a release protective layer in sequence. The two adhesive layers are acrylate pressure-sensitive adhesives and comprise an acrylate polymer solution, tackifying resin, a zeolite molecular sieve and a cross-linking agent. The key of the pressure-sensitive adhesive is an acrylate polymer solution formula, the rigidity of a molecular chain is enhanced by introducing methyl methacrylate and isobornyl methacrylate, and the high-temperature adhesive strength is ensured; meanwhile, the acid values of the hydroxyl / carboxyl-containing monomer and the tackifying resin are controlled to reduce hydrophilic groups and improve moisture resistance, and the zeolite molecular sieve is used for adsorbing gas released by the PC base material under high temperature and high humidity to prevent the gas from damaging a bonding interface. According to the scheme, the process is simple, the cost is controllable, and the problem that the bonding force of the PC base material is reduced due to gas release in a high-temperature and high-humidity environment is effectively solved.

The invention relates to the technical field of adhesives, and discloses a nano-modified polyurethane adhesive, which comprises an isocyanate component, a polyol component, a nano modifier, a chain extender, a catalyst, a solvent, an antioxidant and an antifoaming agent, and is characterized in that the nano-modified polyurethane adhesive comprises the following components in parts by weight: 1-10 parts of a catalyst, 1-10 parts of a solvent, 1-10 parts of an antioxidant and 1-10 parts of a defoaming agent; the raw materials comprise 15-25 parts of an isocyanate component, 40-60 parts of a polyol component, 3-8 parts of a nano modifier, 2-5 parts of a chain extender, 0.1-0.5 part of a catalyst, 10-20 parts of a solvent, 0.2-0.8 part of an antioxidant and 0.1-0.3 part of a defoaming agent; the nano modifier is nano composite particles modified by a silane coupling agent, and the nano composite particles are formed by compounding nano silicon dioxide and nano montmorillonite according to the mass ratio of (2 to 1) to (3 to 1). According to the nano-modified polyurethane adhesive and the preparation method thereof, the nano-modified polyurethane adhesive has the advantages of being high in bonding strength, excellent in heat and humidity resistance, good in high and low temperature stability and uniform in nano particle dispersion, and the problems that a traditional polyurethane adhesive is poor in water resistance and insufficient in high and low temperature performance, and particles are agglomerated and the interfacial compatibility is poor during nano-modification are solved.

The invention relates to the field of degradable adhesive tapes, in particular to a PVA degradable adhesive tape for carton packaging and a preparation method and application of the PVA degradable adhesive tape. The PVA degradable adhesive tape for carton packaging comprises a base material film layer and a pressure-sensitive bonding layer on the surface of the base material film layer, the base material film layer is prepared from the following raw materials in parts by mass: 60 to 80 parts of PVA (Polyvinyl Alcohol), 35 to 50 parts of auxiliary resin, 5 to 12 parts of toughening waterproof complexing agent, 10 to 15 parts of plasticizer, 3 to 5 parts of compatilizer, 0.3 to 0.6 part of antioxidant and 3 to 6 parts of reinforcing filler. The PVA degradable adhesive tape prepared by the invention not only has excellent degradability, but also can give consideration to the properties such as moisture resistance, water resistance, cohesiveness, mechanical properties, aging resistance, corrosion resistance and the like in the application process, so that the problems of obvious performance defects and performance balance contradiction existing in the existing PVA adhesive tape are solved; the application quality and the service life of the adhesive tape are greatly improved.

The invention discloses a strip-shaped off-circuit tap-changer device which comprises a supporting structure, three phases of static contact assemblies are arranged on the supporting structure, and each phase of static contact assembly is provided with a moving contact assembly. A rack capable of sliding back and forth is arranged in the supporting structure; the moving contact assembly is installed on the rack and can move back and forth along with the rack. A transmission shaft is rotationally mounted on the supporting structure; a gear meshed with the rack is coaxially fixed on the transmission shaft; the gear shifting limiting and locking mechanism comprises a gear indicating board, a handle and a limiting piece. The gear indication board is fixedly arranged on the transformer and arranged outside the transmission shaft in a sleeving mode. A plurality of positioning holes are formed in the gear indication board; the handle is positioned above the gear indication board and is fixed on the transmission shaft; the limiting piece is in threaded connection with the handle, and after the limiting piece is aligned with the positioning hole, the limiting piece spirally moves downwards and is inserted into the positioning hole. The device is simple in structure, stable and reliable in performance, low in manufacturing cost, investment-saving and good in anti-corrosion and moisture-proof performance.

The present disclosure provides a multilayer ceramic capacitor which can be manufactured even at a relatively low firing temperature and has excellent moisture resistance. The capacitor includes: a capacitor portion in which dielectric layers and internal electrode layers are alternately stacked; and a coating layer disposed on the outside in the stacking direction of the capacitor part, in which the coating layer contains a perovskite-type compound represented by general formula ABO3 and contains, in a metal state, one or more elements selected from Cu, Au, Ag, Al, Ir, and W, and the number of atoms of the elements is 0.002-0.15 with respect to the number of atoms of B-site elements of the general formula 100.

The embodiment of the invention relates to a seawall safety evaluation method and device, computer equipment and a storage medium. The seawall safety evaluation method comprises the steps of constructing a seawall safety comprehensive evaluation index system; quantifying and grading evaluation factors in the seawall safety comprehensive evaluation index system based on a preset rule, and constructing a seawall safety evaluation model; acquiring multiple pieces of measured data of a target seawall, and selecting an evaluation section based on the multiple pieces of measured data; performing comprehensive scoring on the evaluation section based on the seawall safety evaluation model; and judging the safety level of the target seawall based on the comprehensive scoring result. Therefore, various factors influencing safety, such as seawall engineering quality, moisture-proof capability, structural stability and seepage safety, are fully considered, and the weight of each influence factor is determined in a hierarchical and clear manner by decomposing each factor to construct a perfect index system, so that the seawall safety state conforming to the field reality can be quantitatively evaluated, and the safety of the seawall is ensured. And scientific technical support is provided for seawall maintenance, reinforcement and operation management.

The invention provides a synchronous crosslinking type flame-retardant cable composite material and a preparation method thereof, and belongs to the technical field of cable materials. Partial discharge is inhibited through high dielectric constant and polarization performance of transition metal zirconium phosphate, a carbonized layer is generated at high temperature, and the flame retardant property is improved; the modified fiber combines high orientation of liquid crystal macromolecules and excellent mechanical and flame retardant properties of polyether-ether-ketone, and forms a block copolymer through dynamic grafting, so that the toughness, fatigue life and thermal stability of the material are enhanced; the silane-metal complex precursor improves the moisture resistance, flame retardance and heat insulation performance of the material through the water sealing effect of a silicon-oxygen network and a micro-ceramic layer generated at high temperature; all the components show a remarkable synergistic effect in the aspects of flame retardance, electrical performance and mechanical performance, multiple flame-retardant barriers are formed, the electrical performance of the material is stabilized, and the overall mechanical performance and interface stability of the composite material are remarkably enhanced.

The invention provides a cigarette case and a manufacturing process thereof. The cigarette case comprises a case body and a case cover comprising a damp-proof layer or a moisture-proof layer, whereinthe case body is made of paper pulp raw materials or plant fibers, a waterproof film is pasted to the outer surface and / or the inner surface of the case body, and the waterproof film can be attached to the outer surface and / or the inner surface of the case body in a hot melting manner. According to the cigarette case, excellent moisture resistance can be guaranteed while environment-friendly materials are used. Through the hot melting manner, tight fitting and wrapping of the case body by the waterproof film can be ensured.

A dismantlable pallet including a substantially planar, upper load bearing member with a reinforcing internal frame; a substantially planar, lower supporting base with a reinforcing internal frame configured to improve the structural rigidity and load bearing capacity of the base. The pallet further includes a plurality of spaced apart support members sandwiched between the load bearing member and the base defining apertures between the load bearing member and the base, rendering the pallet releasably engageable with conventional and compatible load transporting apparatuses; and at least one releasable fastener to secure the load bearing member to the base with their respective reinforcing internal frames and the support members sandwiched between the member and the base wherein the load bearing member and the base are made of a rubber compound selected from the group including hardness, tensile strength, tear resistance, abrasion resistance, temperature resistance, impact resistance, slip resistance and moisture resistance.

The invention provides a packaging structure and a related device. The packaging structure comprises a substrate, a cover plate, a light-emitting panel, a first wire and an electric connector. The substrate comprises a display area and a connecting area, and the connecting area is arranged around the display area. The periphery of the cover plate is connected with the connecting area in a sealed mode, and a containing space is formed between the middle of the cover plate and the display area. The light-emitting panel is connected to the display area, and the light-emitting panel is located in the containing space. Each first wire comprises a first end and a second end, the first end of at least one first wire is located in the display area and electrically connected with the light-emitting panel, and the second end penetrates through the substrate and is located outside the containing space. And the electric connecting piece is positioned outside the accommodating space and is electrically connected with the second end. According to the embodiment of the invention, the sealing performance of the packaging structure can be enhanced, and the problem that the packaging structure is poor in moisture resistance and waterproofness is solved.