152results about How to "Improve peel force" patented technology

The invention relates to the technical field of adhesives, in particular to a high-temperature-resistant adhesive, a preparation method thereof and a high-temperature-resistant protective film. The invention provides a high-temperature-resistant adhesive. The high-temperature-resistant adhesive comprises acrylic resin, a cross-linking agent and a solvent, the dosage of the cross-linking agent is 1wt%-2wt% of the acrylic resin; the acrylic resin contains a structural unit as shown in the following formula I: # imgabs0 #; r is selected from alkylene with the carbon number of 1-3. The high-temperature-resistant monomer is introduced into a main body of the acrylic resin, and a boric acid group in the structure of the high-temperature-resistant monomer can be dehydrated under a high-temperature condition to form a boric acid ester structure and generate a cross-linking point, so that the cohesive strength is further improved, the adhesive is endowed with excellent high-temperature resistance, and the stripping force climbing of the adhesive at a high temperature is low.

The invention belongs to the field of lithium ion batteries. The invention provides an electrode plate and a lithium ion battery containing the same, an active layer of the electrode plate comprises a first layer and a second layer, the first layer is arranged close to a current collector, the second layer is arranged on one side, far away from the current collector, of the first layer, the mass percentage content of a binder of the first layer is greater than that of the second layer, and the mass percentage content of the binder of the second layer is less than that of the first layer. The adhesive is redistributed, so that release force and cohesiveness are guaranteed, migration of the adhesive can be improved, influence of migration of the adhesive on uniformity and conductivity is reduced, and electrical properties such as manufacturability and energy density of the electrode plate are improved. And the method is very suitable for the adaptation of the lithium manganese iron phosphate positive electrode with small particle size and large specific surface area and the battery thereof.

The invention belongs to the technical field of polymers and lithium battery materials, and discloses a water-based silicon-carbon negative electrode binder for a lithium battery as well as preparation and application of the water-based silicon-carbon negative electrode binder. The water-based silicon-carbon negative electrode binder is obtained by copolymerizing the following monomers in percentage by mass: 30-50% of a hydrophilic monomer, 20-40% of a hydrophobic monomer and 10-30% of a functional monomer, the hydrophilic monomer is an unsaturated monomer containing carboxylic acid, amide and sulfonic acid groups; the hydrophobic monomer is at least one of acrylonitrile, methacrylonitrile, acrylate and methacrylate; the functional monomer is at least one of vinyl polysiloxane, sodium allysulfonate, sodium methallyl sulfonate, sodium p-styrenesulfonate and N-vinyl pyrrolidone. The water-based silicon-carbon negative electrode binder disclosed by the invention can enhance the binding force between silicon particles on the surface of a silicon-based negative electrode material and a current collector; meanwhile, the volume expansion of the silicon negative electrode material can be inhibited; the cycle performance is improved.

The invention relates to the technical field of batteries, in particular to a negative pole piece as well as a preparation method and application thereof, and provides a negative pole piece which comprises a negative current collector and negative active material areas arranged on the surface of the negative current collector at intervals, the negative electrode active material area comprises a first negative electrode active material area and a second negative electrode active material area which are alternately arranged in sequence, the cohesiveness of the first negative electrode active material area is higher than that of the second negative electrode active material area, and the first negative electrode active material area is arranged at the edge of the negative electrode plate. Due to the fact that the cohesiveness of the first negative electrode active material area arranged on the edge of the negative electrode piece is high, the stripping force of the edge position of the negative electrode piece is high, the problem of large-area powder falling caused by slitting of the negative electrode piece can be greatly solved, and wide application is facilitated.

The invention relates to a modified binder as well as a preparation method and application thereof. The modified binder comprises an inner core layer, a middle shell layer and an outer shell layer which are sequentially arranged from inside to outside, wherein the inner core layer and the middle shell layer are made of butadiene styrene rubber, and the strength of the inner core layer is greater than that of the middle shell layer; and the shell layer is formed by unsaturated acid and unsaturated ether substances. According to the scheme provided by the invention, the problems of negative electrode coating cracking and material floating in the coating process can be effectively improved, the stripping force of the negative electrode piece is improved, and the adhesive property is good; and the dispersion of the negative active material, the conductive agent and the like can be improved and promoted, the loading capacity of the negative active material is improved, and the energy density and cycle performance of the battery are improved.

The invention belongs to the technical field of batteries, and particularly relates to a negative plate and a preparation method and application thereof. The negative electrode plate comprises a negative electrode current collector and a negative electrode material layer arranged on at least one side surface of the negative electrode current collector, the negative electrode material layer comprises a negative electrode active substance, a negative electrode conductive agent and a composite binder, and the composite binder comprises carboxymethyl cellulose lithium and siloxane. The negative electrode plate has relatively high stripping force or crack resistance, and the first coulombic efficiency or cycle stability of the battery can be effectively improved when the negative electrode plate is applied to the battery.

The invention discloses a high-performance flame-retardant adhesive, a preparation method thereof and a flame-retardant cotton paper double-sided adhesive tape. The high-performance flame-retardant adhesive comprises the following raw material components in parts by weight: 100 parts of a high-molecular polymer, 40-80 parts of a high-efficiency flame retardant, 5-50 parts of tackifying resin, 1-7 parts of a curing agent and 60-100 parts of a first solvent. The flame-retardant cotton paper double-sided adhesive tape provided by the invention has the advantages of good initial adhesion performance, high stripping force, high retention and good flame-retardant performance; specifically, the initial adhesion performance of the polyurethane foam material can reach the level that the foam is torn after the polyurethane foam material is adhered; the adhesive has good adhesive property to a PP material, the initial adhesive property can reach 20 N / inch or above, and the stripping force can reach 15 N / inch or above; in the aspect of retention performance, 0.5 kg of weights can be hung without falling under the condition of 60 DEG C * 95%; and in the aspect of flame retardance, the adhesive tape body can reach the VTM-0 level.

The invention provides a preparation method and application of a powder battery binder. The preparation method of the powder battery binder comprises the following steps: S1, mixing a water-phase mixed solution and an oil-phase solution, and carrying out reversed-phase suspension polymerization to obtain a suspension; s2, carrying out post-crosslinking treatment on the suspension to obtain a modified suspension; and S3, removing the residual oil phase and water from the modified suspension, and then drying to obtain the powder battery binder. The powder battery binder can prevent water from being introduced into positive and negative active substances of a battery, so that the safety performance of the battery is improved, the powder battery binder can be used as the binder of the positive and negative active substances, and meanwhile, the transportation cost of the binder can be reduced.

The present invention belongs to the technical field of protective films, and relates to an explosion-proof film and a preparation method thereof, comprising a PET base film, a release film, and an adhesive layer for bonding the PET base film and the release film, wherein the adhesive layer is solidified by an adhesive, and the adhesive comprises the following substances in parts by weight: acrylate copolymer: 50 parts to 70 parts, solvent: 20 parts to 45 parts, tackifying resin: 2.5 parts to 4 parts, coupling agent: 0.5 parts to 2 parts, curing agent: 1.5 parts to 3 parts, catalyst: 0.5 parts to 1 part, and the molecular weight of the acrylate copolymer is between 1 million and 2 million. It can effectively solve the problem of low peeling of the explosion-proof film, especially the obvious reduction of peeling force and degumming in long-term use under high temperature and high humidity environment.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to a UV tackifying type pressure-sensitive adhesive, a supporting film and a preparation method of the UV tackifying type pressure-sensitive adhesive. A cross-linking agent with UV responsiveness is prepared, the cross-linking agent is compounded with a glue master batch to obtain a pressure-sensitive adhesive with a tackifying characteristic, the pressure-sensitive adhesive is coated on the surface of an optical-grade film according to a certain thickness, and a release film and a protective film are covered on the surface of the optical-grade film. Under the irradiation of UV light, a light-sensitive chemical structure in molecules of the cross-linking agent is broken, so that the cross-linking degree of the pressure-sensitive adhesive is reduced, then active groups providing adhesion characteristics in masterbatch are exposed on an adhesion interface, the adhesion of the support film is increased, the support film has relatively small viscosity during initial lamination, and the adhesion performance of the support film is improved. And the material waste caused by incapability of reworking and re-laminating under the poor sticking conditions such as bubble mixing and sticking position deviation in the laminating process is avoided.

The present application relates to the field of electronic components, and more specifically, it relates to an electromagnetic shielding tape and its preparation method and application. It includes a conductive layer and at least one shielding pressure-sensitive layer, each of which is connected to the conductive layer, and each of which is provided with a protective layer on the side away from the conductive layer, and the gram weight of each shielding pressure-sensitive layer accounts for 100-166% of the gram weight of the conductive layer, and the shielding pressure-sensitive layer is formed by coating and curing a conductive acrylic pressure-sensitive adhesive. The conductive acrylic pressure-sensitive adhesive has good flexibility, conductivity, film-forming stability and adhesion stability. When the gram weight of the shielding pressure-sensitive layer accounts for 100-166% of the gram weight of the conductive layer, the shielding pressure-sensitive layer has good adhesion, so that it has good adhesion stability with the conductive layer, and has good adhesion to the circuit board, reducing the possibility of falling off and cracking, so that the electromagnetic shielding tape obtains a better electromagnetic shielding effect.

The invention relates to the technical field of composite current collector materials, and provides a preparation method of a PET-based composite copper foil. The method comprises the following steps: (1) dropwise adding concentrated sulfuric acid into a xylene dispersion liquid of a poly (gamma-benzyl-L-glutamate) nanorod, spraying onto the surface of a PET film, standing for reaction, and performing vacuum drying; (2) spraying an acetic acid solution of hydrobromic acid to the surface of the PET film, standing for reaction, washing and vacuum drying; (3) soaking the PET film in ammonia water, soaking the PET film in a silver nitrate solution, and soaking the PET film in a formaldehyde solution; and (4) chemical copper plating. The method not only can improve the interface bonding between the PET base film and the copper plating layer, but also has good environmental protection property and economical efficiency.

The invention provides a negative electrode binder, a negative electrode plate and a secondary battery. The negative electrode binder comprises a granular polymer, wherein the polymer comprises a vinyl aromatic structural unit and an acrylate structural unit; the particle size D10 of the polymer ranges from 200 nm to 1300 nm, the particle size D50 of the polymer ranges from 400 nm to 1500 nm, and the particle size D90 of the polymer ranges from 500 nm to 2000 nm. The negative electrode binder provided by the invention has a relatively large particle size, and can improve the low-temperature discharge rate capability and peel strength of the battery.

The present invention discloses an acrylate pressure-sensitive adhesive for TPU car cover film and a preparation method thereof in the field of pressure-sensitive adhesive technology. The acrylate pressure-sensitive adhesive for TPU car cover film includes the following raw materials in weight percentage: soft monomer: 20-25%, hard monomer: 8-12%, functional monomer: 2-4%, adhesion promoting monomer: 0.2-1%, reactive polycaprolactone: 0.5-2%, initiator: 0.05-0.2%, solvent: 55-68%, curing agent: 0.15-0.5%. The present invention introduces reactive polycaprolactone to improve the adhesive force of the acrylate pressure-sensitive adhesive and improve the mobility. Adhesion promoting monomers are introduced to improve the peeling force of the acrylate pressure-sensitive adhesive. At the same time, the synthesis method of the acrylate pressure-sensitive adhesive adopts a pure dropwise reaction method of dropping monomers at the solvent reflux temperature, the reaction temperature is easy to control, the upper kettle production is easier to implement, and there is no risk of temperature and material rushing.

The invention belongs to the field of adhesives, and particularly relates to an adhesive film with the classification number of C09J7 / 00, in particular to a rat bite prevention adhesive film and a preparation method thereof. The rat-bite-proof adhesive film structurally comprises an adhesive layer and a base material layer, the adhesive layer is made of an adhesive, the adhesive is prepared from at least a basic polymer, tackifying resin and a smell repellent, and the smell repellent comprises bitter essence S and capsaicin. The prepared rat-bite-proof adhesive film is excellent in adhesive performance and rat-proof effect and can be completely peeled off after being used, no adhesive residue appears, in addition, the rat-bite-proof adhesive film is wide in preparation raw material source and low in cost, and the product has the excellent actual use effect.

The invention discloses a high-adhesion damp-heat-resistant and yellowing-resistant photovoltaic adhesive and a preparation method thereof. The high-adhesion damp-heat-resistant and yellowing-resistant photovoltaic adhesive is prepared from the following raw material components in parts by weight: 40-60 parts of light-cured acrylate, 34-44 parts of a reactive diluent, 0.5-4 parts of a photoinitiator, 0.05-3.5 parts of a first polymerization inhibitor and 1-6 parts of an auxiliary agent, the structure of the light-cured acrylate is as follows: A-(B-C) x, in which A is a heterocyclic compound containing a urea bond; b is an alicyclic diisocyanate monomer; c is a hydroxyl-containing acrylic acid derivative, and x is from 1 to 5. The photovoltaic adhesive disclosed by the invention can meet the general requirements of photovoltaic adhesives, has high adhesive force, damp-heat resistance, aging resistance and yellowing resistance, and is matched with a low-temperature tin-coated welding strip, so that the welding strip and a battery piece realize dual fixation, the stripping force between the welding strip and the battery piece is greatly improved, meanwhile, traditional infrared heating welding is replaced, and the production cost is reduced for lightening and thinning the battery piece at the assembly end. And the realizability is provided by reducing the cost and the energy.

The invention relates to a preparation process of a composite core body, which comprises the steps of first absorption layer forming, primary glue spraying, second core body forming, secondary glue spraying, second absorption layer forming and core body main body forming, the middle part of the top of the second core body is fixed only through a dotted second glue spraying part, and the two sides of the top of the second core body are not fixed by glue. When the top of the second core body absorbs a large amount of urine, the second core body can expand, and the flow guide groove provides enough expansion space for the second glue spraying part, so that the stripping force of the absorption core body is large, and the liquid absorption space of the second core body can be instantly increased; the first glue spraying part adopts the point-shaped first glue spraying points, so that the bottom of the second core body can expand after absorbing water, the whole second core body has a good expansion effect, the water locking and water absorbing capacity of the second core body is greatly improved, and the technical problems that the expansion space of the core body is limited, and the flow guiding and liquid absorbing effects are poor are solved.

The invention discloses an optical adhesive with low modulus, high creep and high peel strength, a preparation method of the optical adhesive and an optical adhesive sheet. The optical adhesive comprises the following raw material components in parts by weight: 100 parts of OCA (Optical Clear Adhesive), 4-7 parts of a tackifying aid, 0.01-0.03 part of a curing agent and 0.04-0.07 part of an organic tin catalyst, the OCA is prepared from the following raw materials in parts by weight: 26-31 parts of a first soft monomer, 1-2 parts of a hard monomer, 1-3 parts of a first functional monomer, 0.03-0.1 part of a first initiator and 65-70 parts of a first solvent. According to the invention, a low-molecular-weight polymer formed by copolymerization of a large amount of acrylic acid and 2-EHA is used as tackifying resin to increase the stripping force, so that the adverse effect of sudden increase of the energy storage modulus caused by use of a large amount of polar monomers in the OCA is avoided; and the storage modulus and Tg of the whole system are kept at a lower level, and meanwhile, the release force is higher and good.

The invention discloses a high-energy bubble shoe washing machine, and relates to the technical field of shoe washing machines, the high-energy bubble shoe washing machine comprises a shoe washing cylinder with one side provided with a blow-off pipe, the shoe washing cylinder is internally provided with a high-energy bubble washing mechanism and a rotary suspension mechanism in sequence, and the outer wall of the bottom of the shoe washing cylinder is fixedly connected with a protective shell; the high-energy bubble cleaning mechanism comprises a spraying frame, a plurality of high-energy bubble nozzles which are installed on one side of the spraying frame and distributed at equal intervals, and a water receiving pipe fixedly communicating with the spraying frame. Each high-energy bubble nozzle comprises a nozzle body and two air supplementing pipes symmetrically arranged on the nozzle body. According to the designed high-energy bubble nozzle, when water flows out of the nozzle body, according to the Bernoulli principle, the higher the flow speed is, the lowest the pressure intensity is, low pressure can be generated at the nozzle, the two air supplementing pipes continuously suck air to generate bubbles, and the bubbles are equivalent to high-energy bubbles one by one; and the release force to pollutants can be increased at the moment of bubble breakage, and the cleaning effect of shoe stains is improved.

The invention aims to disclose a high-strength and high-conductivity copper-aluminum-copper composite material and a preparation process thereof, and relates to the technical field of metal composites.The copper-aluminum-copper composite material sequentially comprises a first high-strength copper alloy layer, a first aluminum layer, a second aluminum layer, a third aluminum layer and a second high-strength copper alloy layer from top to bottom; the ratio of the thickness of the first high-strength copper alloy layer to the thickness of the first aluminum layer to the thickness of the second aluminum layer to the thickness of the third aluminum layer to the thickness of the second high-strength copper alloy layer is (0.2-0.3): (0.05-0.07): (0.5-0.7): (0.05-0.07): (0.2-0.3); the cast-rolling composite aluminum alloy plate has the beneficial effects that the first aluminum layer and the third aluminum layer are both made of 8011 aluminum alloy or 1060 aluminum alloy, the first aluminum layer and the first high-strength copper alloy layer have high wettability, and the cast-rolling composite strength is high; the second aluminum layer is made of 7A52 aluminum alloy or 6013 aluminum alloy, has the characteristics of light weight and high strength, and is compounded between the first aluminum layer and the third aluminum layer through hot rolling, so that a high-strength composite interface is formed among the first aluminum layer, the second aluminum layer and the third aluminum layer, and the high-strength and high-conductivity copper-aluminum-copper composite material is formed.

The invention discloses a method for synthesizing waterborne polyurethane resin by adopting a prepolymer dispersion method, and relates to the technical field of waterborne polyurethane processing, and the method comprises the following steps: (1) preparing raw materials; (2) prepolymerization; (3) refluxing; (4) neutralization reaction; (5) dispersing, emulsifying and carrying out chain extension reaction; and (6) packaging a finished product. The waterborne polyurethane resin is synthesized by introducing the modified cellulose nanofibers and the functionalized nanosilicon dioxide and combining a prepolymer dispersion method, and the finally synthesized waterborne polyurethane resin has excellent comprehensive performance, especially water resistance and mechanical performance; therefore, the prepared waterborne polyurethane resin can be better applied to the fields of new energy automobiles, intelligent manufacturing, environment-friendly building materials and the like, the use value of the product is greatly improved, and the service life of the product is prolonged.

The invention relates to a high-adhesion thermosetting acrylic UV (ultraviolet) viscosity-reducing adhesive tape and a preparation method thereof. The high-adhesion thermosetting acrylic UV viscosity-reducing adhesive tape comprises a pressure-sensitive adhesive layer and a base material layer, the pressure-sensitive adhesive layer is prepared from the following components: 50 to 60 parts of 2-ethylhexyl acrylate, 20 to 30 parts of butyl acrylate, 10 to 20 parts of methyl methacrylate, 5 to 10 parts of acrylic acid, 0.5 to 2 parts of dibenzoyl peroxide, 10 to 20 parts of epoxy acrylate copolymer, 2 to 5 parts of tackifying resin, 1 to 2 parts of curing agent, 1 to 3 parts of photoinitiator, 0.1 to 0.5 part of antistatic agent, 70 to 90 parts of ethyl acetate and 40 to 60 parts of methylbenzene. The UV viscosity-reducing adhesive tape has the effect of improving the initial peel strength of the UV viscosity-reducing adhesive tape.

This invention provides a modified aqueous negative electrode, its preparation method, and its application. The modified aqueous negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed on the surface of the current collector. The negative electrode active material layer includes a negative electrode active material, a conductive agent, sodium alginate, waterborne polyurethane, and a pore-forming agent. The modified aqueous negative electrode of this invention solves both the raw material shortage problem of oil-based negative electrode formulations and the pain points of current aqueous negative electrode formulations, improving the slurry solids content, electrode porosity, and flexibility, while reducing electrode resistivity. Furthermore, this formulation is environmentally friendly, requiring no control of ambient humidity, and can significantly reduce production costs.

The invention relates to a TPE (thermoplastic elastomer) composite material as well as a preparation method and application thereof. The TPE composite material comprises the following components: an SEBS elastomer, softening oil, a polyester elastomer, a polyurethane elastomer, an antistatic agent, a compatilizer and a filler. The TPE composite material disclosed by the invention not only has good antistatic property and compressive deformation resistance, but also has high stripping force on an ABS (Acrylonitrile Butadiene Styrene) material, so that the TPE composite material can be widely applied to a rubber coating material of the ABS material.

The invention relates to the technical field of plastic-coated wires, and discloses a polyester plastic imitation stainless steel plastic-coated wire and a preparation method thereof. The wire is composed of an internal metal wire, an inner plastic-coated layer wrapped around the outer side of the metal wire, and an outer plastic-coated layer wrapped around the outer side of the inner plastic-coated layer; the inner plastic-coated layer is composed of the following components in parts by weight: 87-99.99 parts of PET plastic particles, 1-3 parts of quartz sand, and 0-2 parts of a plastic production aid; the outer plastic-coated layer is composed of the following components in parts by weight: 87-99.99 parts of polyethylene terephthalate / cyclohexane-4-ene-1,2-dimethyl terephthalate copolyester, 0.01-3 parts of a colorant, 0-2 parts of a plastic production aid, and 0-2 parts of a plastic functional aid. The self-made polyethylene terephthalate / cyclohexane-4-ene-1,2-dimethyl terephthalate copolyester was used as the outer plastic coating material, which significantly improved the mechanical properties of the coating layer and greatly improved the tensile strength, impact strength and bending strength of the product.

The invention relates to the field of high polymer materials, and provides a polyacrylate pressure-sensitive adhesive for lap joint of engineering geotextile and a preparation method of the polyacrylate pressure-sensitive adhesive. Wherein the dosage of each component is respectively 20-60 parts by weight of soft monomer, 2-30 parts by weight of hard monomer, 1-10 parts by weight of functional monomer, 0.1-5 parts by weight of initiator, 0.1-5 parts by weight of cross-linking agent or coupling agent, 1-30 parts by weight of tackifying aid, 1-30 parts by weight of rheology regulating additive and 20-65 parts by weight of solvent; the adhesive is prepared from acrylic acid raw materials in a specific proportion, has good brush coating and roller coating constructability, excellent base material wettability and enough strong stripping force and permanent adhesion, and does not have a disengagement phenomenon when being used for bonding geotechnical cloth for lap joint.

The invention discloses a nano carboxymethyl cellulose salt and a preparation method thereof, a binder, a pole piece and a battery. The preparation method of the nano carboxymethyl cellulose salt comprises the following steps: reacting a cellulose raw material with a mixture to obtain a precipitate; sequentially carrying out alkalization treatment and etherification treatment on the precipitate to obtain nano carboxymethyl cellulose salt; wherein the mixture comprises a first catalyst and a second catalyst, the first catalyst is a catalyst with a function of catalyzing esterification reaction, and the second catalyst is acid liquor. The nano carboxymethyl cellulose salt has high cycle performance and high rate performance when being used for a battery.

The invention provides a negative current collector, a negative pole piece and a lithium ion battery, and particularly relates to the technical field of lithium ion batteries. The negative current collector comprises a current collector substrate and a conductive layer, wherein the conductive layer is arranged on the current collector substrate; wherein based on the total weight of the conductive layer being 100%, the conductive layer comprises the following components: 55-60% of a conductive agent, 35-37% of a binder and 3-10% of inorganic particles; the inorganic particles partially protrude out of the surface of the conductive layer, and the size of the inorganic particles protruding out of the surface of the conductive layer is 0.1-0.2 [mu] m. According to the negative electrode current collector, the stripping force between the negative electrode active material layer and the negative electrode current collector can be improved, and the risk that the active material falls off in the negative electrode circulation process is reduced.

The invention belongs to the technical field of conductive adhesive films, and relates to an anisotropic conductive adhesive film easy to slit and a preparation method thereof. The ACF is prepared from the following raw materials: 30-50 parts of a low-boiling-point organic solvent (the boiling point is less than or equal to 100 DEG C), 2-15 parts of a high-boiling-point organic solvent (the boiling point is more than or equal to 200 DEG C), 20-45 parts of an acrylate prepolymer, 1-10 parts of conductive particles, 5-15 parts of an acrylate monomer and 1-10 parts of a free radical initiator. The acrylate prepolymer comprises an ultralow Tg acrylate prepolymer with Tg smaller than or equal to 0 DEG C, a medium Tg acrylate prepolymer with Tg ranging from 50 DEG C to 80 DEG C and a high Tg acrylate prepolymer with Tg ranging from 100 DEG C to 140 DEG C. According to the invention, the ultralow Tg acrylate prepolymer is added into the formula of the ACF, and the high-boiling-point ester solvent and the low-boiling-point solvent are mixed and coated, so that the stripping force between the ACF and the protective film is increased, and the effect of easy slitting is achieved.

The present invention relates to a spray arm, comprising a spray arm body, a first water spray hole is arranged on the spray arm body, and a nozzle can suck gas and mix it with water flow when the first water spray hole sprays water, a gas collecting chamber connected to a gas source is arranged on the side wall of the spray arm body, the nozzle is sleeved in the first water spray hole, and a suction hole is opened on the side wall for gas in the gas collecting chamber to enter the nozzle. The present invention allows bubbles to be entrained in the sprayed water flow, and when the water flow with bubbles is sprayed toward dishes, the bubbles in the water flow contact the dishes and break and generate a large impact force, thereby dispersing the stubborn dirt on the dishes or fruits and vegetables, and achieving a better cleaning effect; at the same time, since the water flow speed is not constant with the rotation of the spray arm, this makes the amount of gas sucked into the nozzle not constant, so that the water-gas mixture is reflected in the effect of discontinuous spraying, further increasing the stripping force on the dirt and improving the cleaning effect.