100results about How to "Avoid delamination" patented technology

The invention provides a photovoltaic module and a preparation method thereof, the photovoltaic module comprises a front plate and a packaging panel, a battery string, an adhesive film and a high-water-resistance adhesive tape are arranged between the front plate and the packaging panel, a gap is arranged between the adhesive film and each side edge of the front plate or the packaging panel, the adhesive film covers the upper surface and the lower surface of the battery string, and the high-water-resistance adhesive tape is arranged between the front plate and the packaging panel. The high-water-resistance adhesive tape is attached between the adhesive film and the gap, and the adhesive film and the high-water-resistance adhesive tape are both made of organic polymer materials, so that the adhesive film and the high-water-resistance adhesive tape can be fused with each other, the fused materials can increase the thickness of the material at the edge of the front plate, the adhesive film can be prevented from being delaminated, and the waterproof effect of edge sealing is further improved; therefore, the reliability and the service life of the photovoltaic module are improved.

The invention relates to the technical field of photovoltaic modules, in particular to an EPE packaging adhesive film, a preparation method of the EPE packaging adhesive film and a photovoltaic module. The EPE packaging adhesive film comprises a first EVA layer, a POE layer and a second EVA layer which are arranged in sequence, the first EVA layer and the second EVA layer respectively and independently comprise EVA resin, functional particles, a sulfydryl-containing silane coupling agent, a cross-linking agent, an assistant cross-linking agent, an antioxidant and a light stabilizer; the POE layer comprises POE resin, functional master batch, triethylamine, a cross-linking agent, an assistant cross-linking agent, an antioxidant and a light stabilizer; the functional particles comprise white carbon black, magnesium hydroxide and a sulfydryl-containing silane coupling agent according to the mass ratio of 1: (0.8 to 1.2): (0.002 to 0.1). After the EPE packaging adhesive film is applied to the photovoltaic module, the long-term reliability of the photovoltaic module can be effectively improved, and the service life of the photovoltaic module can be effectively prolonged.

The invention discloses a hydrogen-corrosion-resistant coating material for a hydrogen-rich electrolyte environment and a preparation method thereof, and relates to the technical field of hydrogen-corrosion-resistant coating materials, the coating material comprises the following components by weight: a metal matrix reinforcing material: 30%-50% of nickel and 5%-10% of cobalt; the ceramic particles comprise 10%-20% of aluminum oxide and 5%-15% of The coating material disclosed by the invention shows excellent corrosion resistance, wear resistance and hydrogen embrittlement resistance in a hydrogen-rich electrolyte environment. The nickel-cobalt alloy layer is kept stable at high temperature and high pressure, hydrogen permeation is blocked, and material degradation is prevented. Aluminum oxide and silicon carbide improve the hardness and wear resistance of the coating, and the coating is kept intact in temperature circulation. The rare earth elements yttrium oxide and cerium oxide enhance the oxidation resistance and hydrogen embrittlement resistance. And the dispersing agent and the cross-linking agent further improve the uniformity, compactness and adhesion of the coating, so that the coating is suitable for industrial parts in high-pressure and high-stress environments.

The invention discloses a self-repairing composite material for a new energy vehicle tire, a preparation method of the self-repairing composite material and the tire. The self-repairing composite material is formed by connecting a first self-repairing layer and a second self-repairing layer. The first self-repairing layer is prepared from the following components in parts by weight: 80-120 parts of a dynamic vulcanized rubber system, 18-35 parts of a functional filler system and 3-8 parts of a vulcanization accelerator; the second self-repairing layer is prepared from the following components in parts by weight: 100 to 110 parts of thermoplastic polyurethane elastomer, 30 to 40 parts of repairing microcapsule and 10 to 15 parts of modified polyimide fiber; the repairing microcapsule is composed of a core material and a capsule wall, and the core material is an epoxy resin mixture or a curing agent mixture. By arranging the double-layer self-repairing composite material, the requirement for rapid repairing when the new energy vehicle tire is damaged under the complex road condition can be met, good durability is achieved, and the safety of a driver and passengers is effectively protected.

The utility model discloses a durable steel wire mesh framework polyethylene composite pipe which comprises an inner pipe and an outer pipe. The utility model has the beneficial effects that the UV glue layer, the inner groove and the outer groove are adopted, the inner wall of the inner pipe is coated with the UV glue, the corrosion resistance and the wear resistance of the inner pipe are improved, the use durability is improved, the outer wall of the inner pipe and the inner wall of the outer pipe are respectively provided with the outer groove and the inner groove, the roughness of the outer wall of the inner pipe and the inner wall of the outer pipe is increased, and the service life is prolonged. Meanwhile, the outer pipe is a polyethylene transparent pipe, when the water leakage phenomenon occurs, water penetrates through the water-permeable net strips to react with anhydrous cupric sulfate powder, anhydrous cupric sulfate becomes striking blue, and at the moment, the water leakage phenomenon is avoided, so that the water leakage phenomenon is avoided, and the service life of the water-permeable net strips and the anhydrous cupric sulfate powder is prolonged. A worker can quickly find a leakage point by observing which part turns blue, and the water-permeable net strips and the anhydrous cupric sulfate powder wrapped in the water-permeable net strips are arranged in the outer pipe, so that the structure is simpler and more practical.

The utility model provides a kind of for methanol and diesel's mixing device, it is related to fuel mixing technical field, including base, the outer surface of base is fixedly connected with mixer main body, the outer surface of base is fixedly connected with support frame, the outer surface of support frame is fixedly connected with diesel metering pump and methanol metering pump.The utility model generates preliminary turbulent flow by primary helical blade, while secondary helical blade is enhanced shear force using reverse torsion, utilize tertiary helical blade to complete final homogenization mixing, under this progressive mixing mode, can effectively ensure that methanol and diesel molecule level sufficient fusion, can effectively solve the problem of traditional dynamic agitator mixing insufficient, and the liquid storage tank main body inside of the equipment is provided with inclined baffle, can effectively reduce the flow impact of mixed fuel, cooperate with three-stage mixing system, can effectively inhibit stratification phenomenon caused by density difference in long-term storage process of fuel.

The application discloses high-strength composite cement blanket and belongs to the technical field of civil engineering composite materials. The application improves the three-dimensional fabric structure: a three-dimensional weaving is adopted to form a top layer, a middle layer and a bottom layer, wherein the middle layer is formed by a honeycomb three-dimensional structure formed by interweaving vertical fiber filaments and horizontal oblique fiber filaments which are arranged obliquely relative to the vertical fiber filaments; the vertical fiber filaments connect the top layer and the bottom layer; and the horizontal oblique fiber filaments pass through the vertical fiber filaments in an S-shaped wiring mode multiple times to form limiting knots which are distributed in the top layer, the middle layer and the bottom layer to form an overall tensile strength reinforcing structure. The three-dimensional fabric can be combined with a "two cloth and one film" protective layer and a solidifiable composite material containing gold steel sand. The application realizes isotropic reinforcement through the honeycomb structure and builds a mechanical occlusal interface through the S-shaped limiting structure, thereby significantly improving the bending strength, interface adhesion and waterproof durability of the cement blanket, and the application is suitable for slope protection, trench lining and temporary road paving engineering and the like.

This invention provides an antistatic and privacy-protecting polarizing film and its preparation process, belonging to the field of polarizing film preparation technology. The preparation process includes the following steps: preparation of an antistatic agent; preparation of a modified adhesive; preparation of a composite polarizing film; and preparation of the polarizing film. This invention introduces an antistatic agent and POSS-modified graphene oxide into the modified adhesive, making the adhesive layer a conductive medium connecting multiple layers such as the polarizing film (PVA), TAC layer, and privacy film, forming a cross-layer conductive path. This avoids static electricity accumulation at the interface, improving the antistatic effect. Boric acid is first used to crosslink the PVA film, followed by glyoxal crosslinking, achieving long-term reliability of the polarizing film under high temperature and high humidity environments.

The present application relates to the field of composite pipe welding forming process, and particularly relates to a bimetallic composite pipe welding forming process. The scheme forms a transition layer in the form of laser cladding and flame spray welding before root welding of the base layer and welding of the composite layer, forms a continuous interface functional layer before welding, covers the bottom, sidewall and step corner of the groove. Compared with the partial transition layer prepared at the bottom of the groove in the prior art, the scheme can form a continuous protection along the groove interface, the isolation range is more complete, the channels for Fe / C migration from the bottom, the sidewall of the groove and the interface step to the composite layer are covered; the transition layer takes into account isolation, strengthening and subsequent welding fusion quality, and serves as an isolation and metallurgical control layer in the subsequent welding thermal cycle. The transition layer can be well metallurgically combined with the base layer and the composite layer, the subsequent base layer and composite layer welds can be formed by adhering to the stable bonding surface, layer peeling and debonding in operation is avoided, and the overall structural stability of the composite pipe is improved.

The present application relates to the fields of materials science and metal processing, and discloses a 12Cr2Mo1V steel forging for a pressure vessel and a heat treatment process thereof, wherein the surface of the steel forging has a composite cladding layer, and the composite cladding layer is composed of tungsten carbide, chromium carbide and 5%-10% titanium or nickel. The heat treatment process comprises the following steps: after the composite cladding layer is prepared, a preliminary heat treatment is performed, the tempering temperature is 250-350°C, and the duration is 2-3 hours; normalizing or quenching treatment is performed, the normalizing temperature is 900-950°C, and the quenching temperature is 930-980°C; after normalizing or quenching, tempering treatment is performed, the tempering temperature is 500-650°C, and tempering is performed at least twice. The present invention provides an efficient and reliable processing method, which greatly improves the comprehensive performance of 12Cr2Mo1V steel forgings, and is particularly suitable for industrial applications requiring extremely high durability and reliability.

The utility model discloses a dimming film and a dimming assembly, and relates to the technical field of dimming films. The light adjusting film comprises a hardened layer, a light adjusting layer and a light adjusting layer, the organic particles are arranged in the hardened layer; wherein the plurality of organic particles form microstructures with different heights on the surface of the hardened layer, and the particle size of the organic particles is greater than the thickness of the hardened layer. The EC dimming film solves the problems that in the follow-up process of combining the EC dimming film with automobile glass and after the EC dimming film is repeatedly used in a color changing mode under the action of heat and pressure, any interface in the hardened layer, the ITO transparent conducting layer and the EC color changing functional layer is separated, conduction is abnormal, color changing is uneven in the dimming process, and the EC dimming film is not prone to discoloration. And even large-area pocking marks and color blocks are generated.

The present application relates to the technical field of road engineering, and particularly relates to a bridge-head cover plate combined fiber anti-cracking flexible splicing structure and a preparation method thereof, which comprises a base layer with an asphalt pavement part on the top and an abutment; the base layer, the abutment and the asphalt pavement part form a groove, the side wall of the groove is formed by the asphalt pavement part, the bottom wall of the groove is formed by the base layer and the abutment; the inner wall of the groove is coated with a two-component high-viscosity high-elasticity interface adhesive; from bottom to top, the groove is sequentially filled with a high polymer elastic body and a reinforced anti-cracking asphalt mixture; a basalt fiber bar anchoring member is pre-buried in the inner wall of the groove, and the high polymer elastic body and the reinforced anti-cracking asphalt mixture wrap the basalt fiber bar anchoring member; through the stress diffusion of the interface adhesive layer, the deformation buffer of the flexible bottom layer and the anti-cracking cooperation of the rigid surface layer, the road surface longitudinal slope mutation caused by the differential settlement of the abutment and the base layer is effectively relieved, the vehicle jumping impact force is reduced, the road surface longitudinal corner is reduced, and the driving smoothness and the structural durability are significantly improved.

This invention discloses a modification method for nanocrystalline magnetic core encapsulation materials. The method includes: S1: surface functionalization modification of nano-silica and boron nitride nanosheets by grafting amino and epoxy groups, respectively; S2: blending and dispersing the modified inorganic nanofiller with low-viscosity bisphenol A type epoxy resin, flexible epoxy resin diluent, latent curing agent, and coupling agent under high shear force to form a uniform and stable modified epoxy resin composition; S3: plasma cleaning and activation treatment of the nanocrystalline magnetic core; S4: encapsulating the modified epoxy resin composition on the surface of the magnetic core using a vacuum pressure impregnation process, followed by programmed temperature curing. This invention significantly improves the mechanical strength, thermal conductivity, and heat resistance of the encapsulation layer and reduces the high-frequency dielectric constant and loss by constructing an organic-inorganic interpenetrating network and interface reinforcement.

The application relates to a stone-plastic floor and an extrusion molding preparation method of the stone-plastic floor, and relates to the stone-plastic floor processing technical field.The stone-plastic floor comprises polyvinyl chloride resin, heavy calcium carbonate, calcium-zinc stabilizer, abrasive powder, internal lubricant, and external lubricant; and the preparation steps comprise feeding and mixing, extrusion, calendering, film covering, traction and cutting, and slotting; the low-temperature cold mixing realizes energy saving and consumption reduction, the stabilizer decomposition and lubricant volatilization problems caused by high temperature are avoided, the filler dispersion uniformity and interface bonding force are improved, the large-diameter specification extruder is adopted to improve the production efficiency, the material uniform plasticization is guaranteed by cooperating with the melting section cooling area, the processing stability and the finished product qualification rate are effectively improved, the stability, wear resistance and waterproofness of the stone-plastic floor are finally obviously improved, the service life is prolonged, and the stone-plastic floor has the advantages of environmental protection and production efficiency.

The utility model relates to the technical field of wires and cables, in particular to a halogen-free cable with an anti-cracking structure, which comprises a conductor, an insulating layer, a filling layer, an anti-cracking layer and a sheath layer which are sequentially arranged from inside to outside, the anti-cracking layer consists of a corrugated elastomer layer and a reinforcing piece, the corrugated elastomer layer is coated on the outer surface of the insulating layer, and the reinforcing piece is coated on the outer surface of the insulating layer. The wave-shaped elastomer layer provides a telescopic space, absorbs mechanical stress and prevents stress from being concentrated on the sheath layer through periodic distribution of wave crests / wave troughs of an axial wave structure when the cable is bent or subjected to external force, so that generation of cracks is inhibited, and spirally wound fibers / metal wires of the reinforcer are embedded into the wave troughs to form constraint. Excessive deformation of the corrugated elastomer layer is limited, tensile strength is improved, radial cracking expansion is prevented, the sheath layer and the anti-cracking layer are welded, the sheath layer and the corrugated elastomer layer are welded through a co-extrusion process, a traditional interlayer interface is eliminated, interlayer stripping caused by thermal expansion and cold contraction or external force is avoided, and the service life is prolonged.

The invention discloses a preparation method of a composite current collector, which belongs to the technical field of current collectors, and comprises the following steps: providing a porous support layer; forming a first filling layer in the supporting layer, wherein the thickness of the first filling layer is smaller than the total thickness of the supporting layer; the supporting layer is filled with n filling layers corresponding to the first filling layer, n is an integer larger than or equal to 1, the total thickness of the formed filling layers is not larger than the total thickness of the supporting layer, and at least one filling layer is a rigid layer and has a relatively large elastic modulus so as to meet the overall mechanical performance of the thin film; a conductive layer is formed on at least one surface layer of the support layer. According to the composite current collector prepared by the invention, the overall mechanical performance of the current collector can be improved to a certain extent.

The invention relates to the technical field of degradable high polymer materials and disposable personal care products, and discloses a preparation process of a degradable high-barrier plastic film for a hair dyeing shawl, and the preparation process comprises the following steps: 1, preparing chitosan-dopamine grafted modified montmorillonite (CTS-DA-MMT): dispersing 5g of 20-30nm nano montmorillonite in a 2wt% acetic acid solution, and ultrasonically dispersing for 40 minutes by 200W; adding dopamine hydrochloride according to the ratio of montmorillonite to dopamine being 1: 0.2, adjusting the pH value to 8.5 by using 1mol / L NaOH, and carrying out stirring reaction at room temperature for 1 hour; adding chitosan according to the ratio of montmorillonite to chitosan being 1: 0.4, and stirring and reacting at the constant temperature of 50 DEG C for 3 hours; the pH is adjusted to 7.0 through 1 mol / L HCl, centrifugation is carried out for 15 min at the speed of 8000 r / min, washing is carried out three times through deionized water, vacuum drying is carried out for 8 h at the temperature of 60 DEG C, and the product is obtained. According to the preparation technology of the high-barrier plastic film for the degradable hair dyeing shawl, chemical grafting (instead of physical blending) of montmorillonite-dopamine-chitosan is achieved through catechol groups of dopamine, the problems of montmorillonite agglomeration and matrix compatibility are solved, and the degradable hair dyeing shawl is prepared. Meanwhile, through the dynamic adhesiveness of dopamine, the problem of barrier failure under dynamic stretching is solved.

The utility model relates to the technical field of aluminium veneer provides a kind of aluminium veneer of firm installation, including aluminium veneer body, the outer wall of aluminium veneer body one side is uniformly fixed with longitudinal reinforcing rib, adjacent the longitudinal reinforcing rib between uniformly fixed with reinforcing structure, the reinforcing structure includes transverse reinforcing rib, limit stop and fixed bolt, the transverse reinforcing rib is uniformly set in aluminium veneer body near the side of longitudinal reinforcing rib.The utility model is provided with reinforcing structure, transverse reinforcing rib and longitudinal reinforcing rib form grid structure, can significantly improve the bending stiffness of aluminium veneer body when using, prevent wind pressure deformation, limit stop is locked with longitudinal reinforcing rib by fixed bolt, ensure reinforcing rib spacing uniform, avoid misplacement, guarantee the stability of connection, realized the device has the function of strengthening aluminium veneer body conveniently, improved the stability of this aluminium veneer of firm installation when using.

The invention provides an interface buffer material, a secondary battery and an electric device, and relates to the technical field of electrochemical energy storage materials. The interface buffer material disclosed by the invention comprises Ti < 3 > C < 2 > T < x > MXene and an inorganic ceramic layer coated on the surface of the Ti < 3 > C < 2 > T < x > MXene, the inorganic ceramic layer includes an oxysalt layer and a non-oxide layer. When the interface buffer material is applied to the solid-state battery, the cycling stability of the solid-state battery can be improved, and the interface impedance of the solid-state battery can be reduced.

The present application belongs to a method for preparing a furan resin. When using cardanol as a raw material of furan resin, conventional cardanol is used, which will cause the technical problem that the strength of the synthesized furan resin decreases after curing. A kind of cardanol modified furan resin for casting, cardanol derivatives and preparation methods thereof are provided. Cardanol is modified using thioglycolic acid, and a click chemistry reaction of a thiol-double bond occurs to obtain a cardanol derivative, and then a phenolic mixture and an aldehyde compound are reacted to obtain a cardanol modified furan resin, by partially modifying the unsaturated double bond of cardanol, a polar hydrophilic motif is introduced, and intermolecular forces are increased, thereby improving the strength of the furan resin. At the same time, the stratification phenomenon during storage and use is suppressed, and storage stability is improved. Then, a cardanol modified furan resin with more excellent performance is obtained, which has a good application prospect.

The invention discloses a preparation method of a polyurethane gel product with a rapid shaping characteristic. The method comprises the following steps: firstly, synthesizing a special polyol monomer with the primary hydroxyl group content of 70-85% through a specific process, and then respectively preparing soft inner gel component prepolymers A and B and hard outer gel component prepolymers C and D; the method is characterized in that a combined pouring and stepped curing process is adopted, specifically, prepolymers A and B are mixed and then injected into a mold to be subjected to preliminary chemical curing to form an inner gel layer, then a mixture of prepolymers C and D containing photoinitiators is poured on the surface of the inner gel layer, ultraviolet irradiation is conducted immediately to achieve surface photocuring, and finally the product is obtained through overall thermocuring. According to the method, through molecular design, prepolymer synergy and process optimization, the technical problem that high elasticity and rapid forming are difficult to consider at the same time is solved, and the prepared gel product has the comprehensive advantages of being low in hardness, high in rebound rate, small in permanent deformation, high in interlayer binding force, short in forming period and the like.

This invention relates to a GaAs-based flip-chip Mini LED and its fabrication method. The chip comprises, from bottom to top, a transparent substrate, a bonding layer, a P-current spreading layer, and a P-ohm layer. A mesa is disposed on the P-ohm layer. The mesa, from bottom to top, comprises a P-waveguide layer, a light-emitting layer, an N-waveguide layer, an N-current spreading layer, an N-buffer layer, and an N-ohm layer. A P-electrode is disposed on the P-ohm layer below the mesa; an N-electrode is disposed on the N-ohm layer above the mesa. Electrode pads are disposed directly above both the P-electrode and the N-electrode. By setting electrode pads, the soldering required in packaging production is combined with the electrode structure, eliminating the need for solder paste application on the substrate, thus achieving chip-substrate interconnection and facilitating modular production of the packaged chip. This effectively improves the problems of weak chip-substrate bonding strength, high coefficient of thermal expansion, cumbersome manufacturing, and high production costs in chip packaging.

This application proposes a washed stone structure for steel structure staircase floors, comprising a steel structure staircase and a washed stone composite layer. The steel structure staircase includes risers and treads, both of which are covered with the washed stone composite layer. The washed stone composite layer, from bottom to top, consists of an anti-rust paint layer, a cement-based interface agent layer, a washed stone layer, and a washed stone topcoat layer. This application constructs a synergistic protection system adapted to both the steel structure substrate and the cement-based decorative surface layer through layered design and functional optimization of the washed stone composite layer. By setting the anti-rust paint layer, cement-based interface agent layer, washed stone layer, and washed stone topcoat layer, this application isolates air and moisture from reacting with the steel structure, while also preventing interface separation caused by stress concentration, avoiding hollow areas and delamination, ensuring the flatness and safety of the staircase floor, and achieving the effect of "rust-free, hollow-free, non-detaching, pollution-resistant, and long-lasting" for the steel structure staircase washed stone floor.

The invention provides an FCCSP packaging structure and a preparation method thereof. The active surface of a chip faces a circuit layer and is electrically connected with the circuit layer; the plastic package layer is located on the circuit layer and wraps the periphery of the chip, and the cooling fin is located on the chip and the plastic package layer; heat dissipation glue is arranged between the heat dissipation sheet and the chip, and adhesive glue is arranged between the heat dissipation sheet and the plastic packaging layer. According to the FCCSP packaging structure, the cooling fins are connected with the chip through heat-conducting glue to optimize the cooling effect, the cooling fins are connected with the plastic packaging layer around the chip through adhesive glue to optimize the fixing effect, and the cooling capacity and the structural reliability of the FCCSP packaging structure are improved; in addition, the heat conductivity coefficient of the heat dissipation glue and the viscidity of the adhesive glue are set, so that the heat dissipation capacity and the structural reliability are both improved; and finally, when the FCCSP packaging structure is prepared, the process units are cut firstly, and then the cooling fins are arranged for the process units respectively, so that the problem of delamination and stripping between the cooling fins and the process units, which is easily caused by the fact that the FCCSP packaging structure which is easily warped is cut after the cooling fins are integrally arranged, is solved, and the structural reliability is further improved.

The utility model discloses a composite wear-resistant elbow pipe, which comprises an outer pipe and a wear-resistant layer installed inside the outer pipe, the outer wall of the upper end of the outer pipe is fixedly connected with a transparent block, a calibration strip a is embedded inside the outer wall of the lower end of the transparent block, and a calibration strip b is embedded inside the outer wall of the upper end of the wear-resistant layer. The circular outer wall of the outer pipe is sleeved with a heat preservation layer, the circular outer wall of the heat preservation layer is sleeved with a pressure-resistant shell, a transparent block, a calibration strip a and a calibration strip b are installed, the distance between the calibration strip a and the calibration strip b can be observed, and when the position distance between the calibration strip a and the calibration strip b deviates, the calibration strip a and the calibration strip b can be calibrated. If the wear-resistant layer is damaged, it represents that the wear-resistant layer and the outer pipe are delaminated, the current wear-resistant layer can be maintained in time, the situation that the delaminating phenomenon is found only when the subsequent outer pipe is damaged, and consequently the situation that the loss is increased is found is avoided, and the loss is reduced.

The invention provides an HJT battery packaging adhesive film and a preparation method thereof, and belongs to the technical field of HJT batteries. The packaging adhesive film comprises a first adhesive film and a second adhesive film; the first adhesive film is prepared from the following components by taking the total mass of the first adhesive film as 100%: 80 to 85% of matrix resin, 5 to 10% of modified resin, 5 to 10% of EVA (Ethylene Vinyl Acetate) resin and 1 to 5% of an auxiliary agent; based on the total mass of the second adhesive film being 100%, the second adhesive film comprises the following components: 10-15% of matrix resin, 1-2% of modified resin, 80-85% of EVA resin and 1-5% of an auxiliary agent; the modified resin is prepared by melt grafting reaction of matrix resin, an initiator and a monomer; the mass ratio of the matrix resin to the initiator to the monomer is 100: (0.3-2): (0.2-6); the matrix resin is organic silicon liquid silicone rubber and / or low-density polyethylene; the monomer is at least one of a (methyl) acrylic acid monomer, maleic acid, maleic anhydride, fumaric acid, itaconic acid and itaconic anhydride.

The utility model discloses a carbon fiber surface layer snowboard, which comprises a surface layer, a core layer and a bottom layer which are sequentially laminated, the surface layer is a carbon fiber fabric curing plate, and a glass fiber and / or carbon fiber fabric reinforcing layer is arranged between the surface layer and the core layer and / or between the core layer and the bottom layer. The carbon fiber fabric solidified plate is used as the surface layer of the snowboard, so that the overall strength and rigidity of the snowboard are remarkably improved, the weight is greatly reduced, a skier can control the snowboard more easily and freely, and the flexibility and comfort of sliding are improved; the glass fiber and / or carbon fiber fabric reinforcing layer is additionally arranged, so that the impact resistance of the snowboard is further enhanced, the damage risk during high-speed sliding or collision is effectively reduced, meanwhile, the torsional rigidity is improved, and the stability and the control accuracy of the snowboard in a complex snowway environment are ensured; interlayer stripping is prevented, and the durability of the snowboard is also improved.

The application relates to the technical field of coil coating, and discloses a radiation refrigeration coil coating composition, a coating and application, the coating composition comprises a basecoat composition and a topcoat composition which are arranged independently. The basecoat composition comprises polyvinylidene fluoride resin slurry, hydroxy acrylic resin, heat-reflecting filler and blocked polyisocyanate curing agent; the topcoat composition comprises polyvinylidene fluoride resin slurry, hydroxy acrylic resin, heat-emitting filler and topcoat crosslinking agent. The application sets the unblocking starting temperature of the basecoat curing agent to be lower than the starting temperature of the topcoat crosslinking reaction, realizes gradient crosslinking of a multilayer coating film from bottom to top, and solves the exhaust blistering defect during baking of a thick coating film. The glass transition temperature of the multilayer coating body is controlled to be 35 DEG C to 50 DEG C, the deformation requirement of warm stamping processing is met, and the coating film is prevented from cracking.

The invention relates to the technical field of brazing materials, in particular to a brazing plate and a preparation method and device thereof. The preparation method of the brazing sheet comprises the following steps: S1, taking two brazing strips with required dimensions and one substrate strip with required dimensions; and S2, the base plate strip sequentially passes through the brazing flux liquid and the bonding metal liquid at a constant speed, the base plate strip coming out of the bonding metal liquid and the two brazing filler metal strips are overlapped together, the base plate strip is located between the two brazing filler metal strips, the overlapped strip is rolled and welded once and then wound, and a rolled brazing plate is obtained. According to the method, the brazing sheet can be obtained only through one-pass rolling brazing, the rolling deformation is small, the temperature is low, the requirement for a rolling mill is low, energy consumption is low, efficiency is high, continuous production can be achieved, defects are few, and the yield is high.

The present invention relates to the technical field of circular knife die cutting, and in particular to a peeling device for preventing reverse separation, comprising a peeling device, a second peeling lower component, a first circular knife machine device and a second circular knife machine device. The composite material of the present invention can rely on the bending stress of its own release film to pre-delaminate the composite material and the release film in the peeled material, and the peeling force of the original release film of the attached composite material is lighter, so as to achieve the beneficial effect of peeling the composite material from the release film without generating delamination.