2000 results about "Moisture resistance" patented technology

The invention relates to the technical field of power transmission, in particular to a moisture-proof cable which sequentially comprises a conductive wire core, a gradient buffer layer, a dynamic sealing layer, a flexible supporting layer and a self-repairing sheath from inside to outside. A gradient buffer layer; the dynamic sealing layer is of a split type sealing structure formed by an outer ring surface sealing lip and an inner ring surface static sealing belt, the outer ring surface sealing lip is formed by embedding a polytetrafluoroethylene fiber reinforcing layer in a silicone rubber matrix, and the surface of the outer ring surface sealing lip is coated with a humidity response type graphene coating; the flexible supporting layer is formed by spirally winding a nickel-titanium alloy belt, and bionic fish scales are welded to the surface of the nickel-titanium alloy belt; the self-repairing sheath is characterized in that a hexagonal honeycomb structure is molded on the outer layer, hydroxyl-terminated polysiloxane and a platinum catalyst are contained in an A-type microcapsule, and modified epoxy resin is contained in a B-type microcapsule. The moisture-proof cable shows excellent corrosion resistance, moisture resistance and self-repairing capability in a humid environment, and can maintain good performance when subjected to external physical impact.

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.

The invention discloses a preparation method and application of a prussian blue material, and belongs to the field of battery materials.The preparation method of the prussian blue material comprises the following steps that S1, a solution containing ferrocyanide is prepared to serve as a raw material A, a solution containing transition metal salt is prepared to serve as a raw material B, a to-be-doped solution C containing alkali metal ions is prepared, the method comprises the following steps: S1, preparing a to-be-doped solution C containing transition metal ions, S2, adding a base solution into a container, continuously adding the raw material A and the raw material B into the base solution, and stirring and mixing to form a precipitate, and S3, in the precipitation process, continuously adding the to-be-doped solution C into the raw material A and continuously adding the to-be-doped solution D into the raw material B until the precipitation is finished to obtain the Prussian blue material. According to the invention, the moisture resistance, the rate capability and the cycle stability of the Prussian blue material are greatly improved.

The invention relates to the field of functional building materials, and discloses a preparation process of a building backing plate and a product. The invention discloses a preparation process of a building backing plate. The preparation process comprises the following steps: S1, cutting an extruded sheet, and flattening the surface of the extruded sheet; s2, placing fiber gridding cloth on one surface of the extruded sheet, coating the fiber gridding cloth with an interface treating agent, and shaping; s3, the surface of the fiber gridding cloth is coated with mortar emulsion, and drying is conducted; s4, turning over, placing fiber gridding cloth on the other surface of the extruded sheet, coating the fiber gridding cloth with an interface treating agent, and shaping; and coating the mortar emulsion on the surface of the fiber gridding cloth, drying and maintaining to obtain the building backing plate. The preparation process is simple and easy to operate, and the prepared building backing plate has good water resistance, moisture resistance, heat insulation, sound insulation and flame retardance, is not prone to separation and cracking after being used for a long time, and is suitable for humid environments such as toilets or kitchens.

The invention relates to the technical field of electricity meters, and particularly discloses a relay and an electricity meter thereof, comprising a mounting plate: a clamping frame is fixedly mounted on the front surface of the mounting plate, sliding grooves are formed in the upper and lower ends of the clamping frame, sliding plates are slidably connected to the inner sides of the sliding grooves, and heat dissipation fins of a heat conduction aluminum plate are attached to electronic components in the electricity meter. The n-pentane heat-conducting medium in the liquid storage box is heated and vaporized, the heat is absorbed, the heat dissipation capability is improved, the heat pushes the air cylinder to open the heat dissipation window, the air velocity in the electric meter is improved, the heat dissipation is enhanced, the temperature is continuously increased, and the heat-conducting medium is further vaporized, so that the inner current-conducting plate and the outer current-conducting plate are attached; and after the temperature is reduced, the heat-conducting medium is condensed, the air cylinder shrinks to block the heat dissipation window, the heat dissipation fan does not need to be automatically triggered by a temperature sensor, the consumption is reduced, the stability is improved, the cost is reduced, and the protection and moisture-proof performance is improved by the blocking window when the heat dissipation device is not used.

The invention provides a moisture-resistant and high-temperature-resistant wire and a preparation method and application thereof. And each wire comprises a conductor, and a mica insulating layer, an inorganic fiber insulating layer, a high-temperature-resistant insulating paint layer, a molecular sieve moisture-resistant layer and an outer protective layer which are sequentially coated outside the conductor from inside to outside. The heat-resistant grade of the moisture-resistant and high-temperature-resistant wire can reach 600 DEG C; the characteristics of specific adsorption of the nanoscale molecular sieve on water vapor and desorption in a heating state are combined, so that the water vapor blocking function is achieved in a high-humidity environment, desorption can be achieved at a high temperature to remove residual water molecules, insulation failure caused by water vapor permeation can be reduced, the reliability is greatly improved, and the service life is greatly prolonged; good insulation performance can still be maintained after high-frequency vibration; the cable can be used in a high-temperature, high-humidity and high-frequency vibration environment, and the high-temperature resistance, the moisture resistance and the vibration resistance of a signal or power transmission wire are improved.

The invention discloses a waterborne acrylic acid-polyurethane composite emulsion, a waterborne acrylic acid-polyurethane composite paint, and a preparation method and application of the waterborne acrylic acid-polyurethane composite emulsion. According to the preparation method of the water-based acrylic acid-polyurethane composite emulsion, a core-shell structure polyacrylic acid-polyurethane emulsion is synthesized in situ by utilizing a core-layer monomer pre-emulsion and a shell-layer monomer pre-emulsion through a semi-continuous seed emulsion polymerization method. The shell layer of the core-shell structure has hydrophilic functional groups including carboxyl, sulfo group and hydroxyl, so that the emulsion has a self-thickening effect, and rheological properties and good constructability required by the coating can be provided. A nonionic hydrophilic group composite sodium sulfonate type post chain extender is selected as waterborne polyurethane, the emulsifying capacity is high, the emulsion stability is good, strong-acid monomers such as acrylic acid and methacrylic acid can be selected, high-thixotropy resin can be obtained through adjustment, meanwhile, the PA content can be effectively increased, the water resistance and weather resistance of a paint film can be improved, and the water resistance and weather resistance of the paint film can be improved. Therefore, the requirements of the automobile paint on moisture resistance, especially high-pressure flushing resistance, are met.

The invention discloses a temperature-resistant waterproof polyurethane coating and a preparation method thereof, and belongs to the technical field of polyurethane coatings, the temperature-resistant waterproof polyurethane coating comprises the following components by mass: 80-90 parts of a polyurethane prepolymer, 1-1.5 parts of a reinforcing filler, 2-3 parts of a composite curing agent and 7-9 parts of polyether glycol; the polyurethane prepolymer is prepared by the following steps: stirring and mixing a fluororubber grafted solution and polyester polyol in a reaction kettle, heating to 70-80 DEG C under the protection of nitrogen, adding an isocyanate mixture, and stirring and reacting for 2-3 hours to obtain the polyurethane prepolymer; according to the temperature-resistant waterproof polyurethane coating prepared by the preparation method disclosed by the invention, the-NCO group is terminated, so that the coating has good stability before curing, is not easy to react with moisture in air and has good moisture resistance before curing, and the fluororubber, the reinforcing filler and the polyurethane waterproof coating are mixed, so that a cross-linked network of the cured polyurethane waterproof coating is enhanced; the mechanical property and the temperature resistance of the cured polyurethane waterproof coating are improved.

The invention discloses a moistureproof electrical cabinet sealing device for a wind power station, and relates to the technical field of electrical cabinet sealing and moistureproof, the moistureproof electrical cabinet sealing device comprises a cabinet body and a protection device, the top of the cabinet body is fixedly provided with a top plate, the right side of the cabinet body is slidably provided with a cabinet door in a penetrating manner, and a rubber strip is arranged between the cabinet body and the cabinet door. A first spring is arranged between the cabinet body and the cabinet door, the protection device comprises a limiting hole, a limiting frame, a limiting rod, a limiting block, a reset spring, a hollow block and a U-shaped plate, the limiting rod moves in the direction away from the cabinet door to drive the limiting block to move, and the limiting block moves to be separated from the limiting hole and release limiting of the cabinet door; the limiting hole is formed in the front side of the cabinet door, the limiting frame is fixedly installed on the right side of the cabinet body, electrical equipment can be effectively prevented from being exposed in humid air due to mistaken touch of external force through the U-shaped plate, and therefore the moisture-proof performance of the cabinet body is improved.

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 relates to a composite coating based on modified polyaspartic acid ester, a terrace system and a construction method of the terrace system, and belongs to the technical field of terrace coatings. The composite coating provided by the invention comprises a bottom layer coating, a middle layer coating and a surface layer coating, the prime paint comprises the following components: specific organic silicon modified polyaspartic acid ester prime coat resin; the component of the middle-layer coating comprises specific polyaspartic acid ester floating coat resin; and the component of the surface layer coating comprises specific imide modified polyaspartic acid ester surface coating resin. The invention also provides a terrace system formed after construction of the composite coating, the terrace system has the advantages of crack resistance, compression resistance, moisture resistance, skid resistance, high adhesion, high strength, high wear resistance, yellowing resistance, long service life and the like, does not contain a solvent, avoids environmental pollution caused by volatilization, can keep excellent performance for a long time when being used for outdoor pavements, and has a wide application prospect. The problems of poor applicability, bubbling cracking, yellowing and the like of the existing floor coating in an outdoor severe environment are solved, the application range is wide, and the application value is high.

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.

According to the multi-layer structure of the composite board and the processing method of the multi-layer structure, swelling blocks on a wear-resisting layer form protruding particles after meeting water, the anti-skid performance is remarkably improved, the safety of a user in a wet and slippery environment is ensured, the color changing function of a humidity sensing piece can rapidly remind the user that water exists on the ground, accidental slipping is prevented, and the service life of the user is prolonged. The efficient water absorption layer and the self-heating layer achieve rapid water absorption and rapid drying and keep the floor dry, the wear-resistant layer and the expansion particles are made of wear-resistant and tear-resistant materials, durability of long-term use is guaranteed, application of intelligent materials such as a shape memory polymer retractable film and the self-heating layer made of moisture absorption and heating materials guarantees reuse and efficient performance of the materials, and the service life of the materials is prolonged. The base material layer and the moisture-proof balance layer ensure the stability and the moisture-proof performance of the structure, the processing process is simplified through composite forming in a hot-press gluing or riveting mode and reserved groove arrangement, and it is ensured that all layers of materials are tightly combined.

The invention provides a soluble fiber inorganic ceramic plate and a preparation method thereof, and the method comprises the following steps: S10: carrying out polysiloxane coating treatment on soluble ceramic fibers to obtain modified soluble ceramic fibers; wherein the polysiloxane contains an amino group; s20, dispersing the modified soluble ceramic fibers in water to obtain a first mixed solution; s30, adding an epoxy silane coupling agent into the silica sol binder to graft epoxy groups on the surface of silicon dioxide in the silica sol binder to obtain a second mixed solution; and S40, mixing the first mixed solution and the second mixed solution to obtain slurry, performing wet vacuum forming on the slurry, and drying to obtain the soluble fiber inorganic ceramic plate. The soluble fiber inorganic ceramic plate obtained by the method has good moisture resistance and strength.

The invention belongs to the technical field of packaging carton production, and discloses a folding-resistant damp-proof packaging carton and a preparation method thereof. The folding-resistant moisture-proof packaging carton is prepared from the following raw materials in parts by weight: 70 to 80 parts of papermaking wood flour, 8 to 10 parts of filler, 30 to 40 parts of modified plant fiber, 20 to 30 parts of high-toughness plant fiber-based composite material, 8 to 10 parts of carboxymethyl cellulose and 1 to 2 parts of additive. According to the folding-resistant damp-proof packaging carton and the preparation method thereof, the defects that a packaging carton is prone to being affected with damp, cracks exist after being folded for multiple times, and the packaging carton is difficult to reuse are overcome. Through the modified plant fibers and the high-toughness plant fiber-based composite material, the folding resistance of the packaging carton is effectively improved, and meanwhile, the moisture resistance of the carton is also improved.

Provided is a glass having a low dielectric loss tangent in a high-frequency region and excellent chemical resistance and moisture resistance. A glass having, in mol% on the basis of oxides, 68% or more of SiO2, 0.1-8% of Al2O3, 88% or more of [SiO2] + [B2O3], 27% or less of [B2O3]-([RO] + [R2O]-[Al2O3]), a relative dielectric constant of 4.5 or less at 25 DEG C and a frequency of 10 GHz, a dielectric loss tangent of 0.005 or less at 25 DEG C and a frequency of 10 GHz, [Delta] Abs-OH of 4.0 or less, 0.1-4% of SrO, a total content (RO) of MgO, CaO, SrO and BaO of more than 0% and 6% or less, and a total content (R2O) of Li2O, Na2O and K2O of 0-1%, [Al2O3]-[RO] is-3% or more and less than 8%, [Al2O3] * [RO] is greater than 0 and 30 or less, [MgO] + [CaO] is 0.1-5.9%, and [MgO] / ([MgO] + [Al2O3]) is 0-0.45.

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 relates to the field of sealing plates, in particular to an environment-friendly moisture-proof density board and a preparation method thereof, and the environment-friendly moisture-proof density board comprises the following components in parts by mass: 50-70 parts of modified wood fiber, 30-50 parts of bamboo fiber, 8-15 parts of a modified isocyanate adhesive, 0.5-3 parts of nano silicon dioxide, 0.3-1 part of a vegetable oil release agent and 0.08-0.15 part of a curing agent. Through combination of natural renewable raw materials and innovative materials and combination of refined process regulation and control and multifunctional integrated design, compared with the prior art, the environment load is remarkably reduced, the moisture resistance and moisture resistance are improved, meanwhile, the flame-retardant and antibacterial properties are considered, the structural stability is optimized, and the service life is prolonged. The method can be widely applied to furniture manufacturing, building decoration and high-humidity environment scenes, and has green, sustainable and high-adaptability application prospects.

Provided is an external electrode paste capable of improving the strength and moisture resistance reliability of a dry film. This external electrode paste which is used for forming an external electrode of a multilayer ceramic electronic component comprises: an acrylic resin and an ethyl cellulose-based resin which are at least partially copolymerized; a Cu powder; a glass powder; and a solvent. For D50_Cu of the Cu powder and D50_Glass of the glass powder obtained by a laser diffraction scattering-type particle size distribution measurement method, the ratio (D50_Glass / D50_Cu) of D50_Glass to D50_Cu is 0.13-0.67, D50_Cu is 3.0 μm or less, and the BET specific surface area (SSA_Glass) of the glass powder is 1.7-20 m2 / g. <sp / >

The invention relates to the technical field of photovoltaic panels, and discloses an enhanced flexible photovoltaic panel, a preparation method thereof and a flexible light photovoltaic module. The reinforced flexible photovoltaic panel comprises a moisture-proof protective layer, a composite fiber reinforced plate and an inner bonding material layer which are sequentially laminated and compounded from outside to inside, the moisture-proof protective coating comprises organic silicon resin, acrylic resin, an organic silicon water repellent, a filler, an antioxidant, a defoaming agent, a flatting agent, a curing agent and a catalyst which are mixed according to the mass ratio of (40-75): 30: 4: 8: 0.5: 0.3: 0.3: 10: 0.5; the molecular weight of the organic silicon resin is 1000 to 4000. According to the enhanced flexible photovoltaic panel, the moisture-proof protective coating is optimized, and through cooperation of all the layers, the comprehensive performance, reliability and stability of the flexible light photovoltaic module can be effectively improved, the defects of a traditional flexible module in the aspects of bending strength, hardness, high temperature resistance, moisture resistance and the like are overcome, and the service life of the flexible light photovoltaic module is prolonged.

The invention relates to a modified ammonium polyphosphate flame retardant as well as a preparation method and application thereof. The problems that ammonium polyphosphate is poor in moisture resistance and poor in compatibility with a polyurethane material matrix, so that the mechanical performance, the heat preservation performance, the flame retardance and the smoke suppression performance are reduced are mainly solved. By adopting the technical scheme of a novel modified ammonium polyphosphate flame retardant, the technical problem is well solved, and the modified ammonium polyphosphate flame retardant can be used in a rigid polyurethane foam material.

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 relates to an epoxy adhesive and a preparation method thereof, in particular to a low-hygroscopicity medium-temperature curing single-component epoxy adhesive suitable for bonding special-shaped structure composite materials and a preparation method of the low-hygroscopicity medium-temperature curing single-component epoxy adhesive. The invention aims to solve the problems of poor flowability resistance and wet resistance of the medium-temperature curing dicyandiamide system single-component epoxy adhesive for bonding special-shaped composite structures. The invention relates to a low-hygroscopicity medium-temperature curing single-component epoxy adhesive suitable for bonding special-shaped structure composite materials. The epoxy resin is prepared from the following components in parts by mass: 70 to 90 parts of bisphenol A epoxy resin, 10 to 30 parts of multifunctional epoxy resin, 10 to 30 parts of core-shell toughened epoxy resin, 10 to 20 parts of polysulfide rubber modified resin, 8 to 12 parts of dicyandiamide, 1 to 2 parts of 2-ethyl-4-methylimidazole and 7 to 9 parts of fumed silica. The polysulfide rubber modified resin disclosed by the invention has a good toughening effect in the epoxy resin adhesive, the shear strength can be improved, and the moisture resistance can be remarkably improved.

The invention discloses a connector with an in-place plugging detection function. The connector comprises a plug and a socket, the plug comprises a plug shell assembly, a pin base assembly and a clamping ring; the needle base assembly is composed of an upper needle base, a lower needle base, an interface sealing gasket, a contact pin and a detection lifting pin; the socket comprises a socket shell, a hole base assembly, a sealing ring and a clamping ring; the hole base assembly is composed of an upper hole base, a lower hole base, a jack assembly, an adapter pin and a spring needle. When the plug and the socket are not plugged, the device can detect that the plug and the socket are in a non-plugging state through a loop connected by the jack assembly and the spring needle; when the plug and the socket are plugged in place, equipment can detect that the plug is in place by detecting a loop connected between the lifting pin and the spring needle, so as to detect the plugging state of the connector. And based on a shell structure of a GJB599B series III, the high-voltage switch cabinet has higher salt mist resistance, strong vibration resistance, water resistance, moisture resistance, dust resistance and the like.