10results about How to "Reduce bond strength" patented technology

The present application relates to the low temperature curing high-strength benzoxazine type silicone adhesive formula and use method, the formula includes the benzoxazine group containing organic silicon compound and organic alkali compound, the mass ratio of benzoxazine group containing organic silicon compound, organic alkali compound is 100:0.1-20.The adhesive of the present application is based on the cooperation between the benzoxazine group containing organic silicon compound and the basic catalyst, can be cured at low temperature, realize the higher strength bonding.The benzoxazine type silicone adhesive formula provided by the present application can be directly used as adhesive, and the bonding strength is high;It can also be used as a basic formula, used as an adhesive after adding other fillers, to meet the different needs of various special occasions.

The invention discloses a PCCP pipe bell and spigot joint sealing system manufacturing method and a PCCP pipe bell and spigot joint sealing system manufactured through the PCCP pipe bell and spigot joint sealing system. During manufacturing, a joint is filled with an elastic blocking piece, the elastic blocking piece is divided into a first sub-joint and a second sub-joint, and the elastic blocking piece is arranged in the joint in an abutting mode through a locking mechanism; mortar is poured into the first sub-joint through a reserved first grouting opening, and the locking mechanism is removed after the mortar does not flow; a base layer is arranged on the upper end face of an upper opening of the second sub-joint, anticorrosive paint is applied to the base layer to form an anticorrosive coating, the anticorrosive coating and the base layer form a plugging structure and seal the second sub-joint, and sealant is poured into the second sub-joint through a reserved second grouting opening; the elastic barrier piece is basically non-sticky to mortar and the like; the method is suitable for construction in the low-temperature environment, the obtained sealing system can adapt to different stress interferences and different environmental factors, lasting sealing can be achieved, the construction technology can be simplified after the anti-corrosion coating is formed in a front-arranged mode, and the construction speed is high.

The application discloses a high-temperature high-power hybrid integrated device and a packaging method thereof, and belongs to the technical field of integrated circuits. The device comprises a circuit module (1) and a heat storage unit box body (2) provided with an inner cavity. A recess (21) is arranged on the surface of the heat storage unit box body (2), the circuit module (1) is fixedly connected in the recess (21), the circuit module (1) is in contact with the heat storage unit box body (2) to form heat conduction, a first filling body (3) composed of phase change heat storage materials is arranged in the heat storage unit box body (2), and a heat insulation layer (6) is arranged on the outer surface of the heat storage unit box body (2). The application effectively improves the heat dissipation capacity and high-temperature resistance of the circuit module, simultaneously reduces the temperature of internal components of the circuit, enables the circuit to normally work in the case that components and materials with a rated working temperature lower than an ambient temperature are adopted, and avoids the adoption of valuable high-temperature components and materials, so that the economic cost of the circuit module is reduced as a whole.

The invention relates to a pole piece stripping device which is used for stripping an active material on the surface of a current collector, the pole piece stripping device comprises a rack, a conveying mechanism, a recovery tank and a spraying mechanism, the conveying mechanism is arranged on the rack, the conveying mechanism comprises a first mounting assembly, a second mounting assembly, a first grid belt and a second grid belt, the first grid belt is wound on the outer side of the first mounting assembly, the second grid belt is wound on the outer side of the second mounting assembly, at least parts of the first grid belt and the second grid belt are oppositely arranged, and the first grid belt and the second grid belt are matched and used for clamping a pole piece; a first fluid is arranged in the recovery tank, the first grid belt and the second grid belt are at least partially immersed in the first fluid, and the first fluid is used for heating the pole piece; the spraying mechanism is arranged on the rack and used for spraying second fluid towards the pole piece.

The present application relates to the technical field of building ceramics, and particularly relates to a bright ceramic tile with antiskid and antifouling properties and a preparation method thereof, comprising the following steps: A. applying a base glaze to the surface of a body layer to form a base glaze layer; B. spraying engraved dry particles to the surface of the base glaze layer to obtain an engraved dry particle layer; C. applying a protective glaze to the surface of the engraved dry particle layer to obtain a protective glaze layer; D. drying and then entering a kiln for calcination, and polishing to obtain the bright ceramic tile with antiskid and antifouling properties; wherein the bright ceramic tile with antiskid and antifouling properties has holes, and the holes are formed by the inner core particles and the bridging layer of the engraved dry particles falling off. The bright ceramic tile with antiskid and antifouling properties and the preparation method thereof are beneficial to ensuring the bright effect and also having good antiskid and antifouling properties, so as to overcome the shortcomings in the prior art.

The present application relates to a kind of acrylic polymer emulsion, its raw material composition and its preparation method and application, belong to building coating technical field.It includes the following weight parts of raw materials: pre-emulsion I 15-25 parts, pre-emulsion II 45-55 parts, emulsifier solution 10-20 parts, initiator solution 1-10 parts, post-processing solution I 1-5 parts, post-processing solution II 1-5 parts, adipohydrazide 0.5-2 parts, triethanolamine 1-5 parts.The acrylic polymer emulsion prepared in the present application has strong cohesion, elongation and elasticity, the soft porcelain prepared using the emulsion is not easy to break or remain when demolding after curing, thereby effectively solving the adhesion problem of soft porcelain on silica gel mold, and the acrylic polymer emulsion prepared in the present application itself has low odor, significantly reduces the peculiar smell of soft porcelain finished product, improves environmental protection and use experience.

The application discloses an ultrasonic-assisted abrasive jet rust removal device and a rust removal method, and relates to the technical field of rust removal. The ultrasonic-assisted abrasive jet rust removal device comprises an abrasive jet system and a longitudinal ultrasonic vibration workbench. In the abrasive jet system, a booster pump and a speed regulating valve are connected with a high-speed water inlet of a nozzle through a hydraulic pipeline, an abrasive bin and an abrasive valve are connected with an abrasive inlet of the nozzle through an abrasive pipeline, the nozzle is installed at the end of a mechanical arm, and the longitudinal ultrasonic vibration workbench is vertically installed below the nozzle. When in use, an ultrasonic generator is started, a workpiece is vibrated through a clamp, the pose of the nozzle is controlled by using the mechanical arm, pump pressure, water flow rate and abrasive flow rate are adjusted, and the abrasive jet is used to impact and strip rust. The application improves the stripping and removal efficiency of rust through the synergistic effect of the longitudinal ultrasonic workbench and the abrasive jet, reduces the pressure demand on the jet equipment, and reduces the wear of the nozzle.

The invention provides impregnating resin with low viscosity and long pot life and a preparation method thereof. Belongs to the field of impregnating resin. According to the technical key points, the adhesive comprises the following components in percentage by mass: 90-100 parts of vinyl acetate; 90 to 100 parts of a modified monomer; 1 to 1.5 parts of polyvinyl alcohol; 1.2 to 1.5 parts of dodecylphenol polyoxyethylene ether; 1.5 to 1.8 parts of sodium chloride; 0.3 to 0.4 part of ammonium persulfate; 1.3 to 1.4 parts of sodium bicarbonate; 90 to 100 parts of distilled water; 3 to 4.3 parts of styrene; silicone oil; 2 to 6 parts; and 1.1 to 1.3 parts of sodium hydroxide. The method comprises the following steps: S1, adding a mixed solution of a sodium hydroxide solution and a sodium chloride solution into a modified monomer, washing for 3-5 times, filtering and separating the monomer, and washing for 3-5 times by using distilled water; the invention aims to provide impregnating resin with low viscosity and long pot life and a preparation method thereof. The impregnating resin is used for enabling the impregnating efficiency to be higher when the whole impregnating resin is used, and meanwhile, the impregnating requirement of a high-density base material can be met.

The utility model discloses a multifunctional composite breathing film, a heat insulation assembly, a battery module and a battery pack, the multifunctional composite breathing film comprises a phase change layer and a heat insulation packaging film wrapping the phase change layer, and a temperature sensing viscous coating is arranged on the outer surface of the heat insulation packaging film; the phase change layer is in a liquid state within the working temperature range of the battery cell, and the viscosity of the temperature-sensitive viscous coating is gradually weakened along with the rise of the temperature. According to the multifunctional composite breathing film provided by the utility model, the outer temperature sensing viscous coating is bonded with the battery cell, the inner phase change layer can completely meet the ballooning caused by a large surface when the battery cell is charged and discharged, and the breathing film can be automatically adjusted according to the ballooning degrees of different areas on the large surface of the battery cell; therefore, the large surface of the whole battery cell is under the same pre-tightening pressure, the attenuation of the battery cell is improved, and the cycle life of a battery pack is greatly prolonged. Meanwhile, the heat insulation packaging film has excellent heat insulation blocking performance, and heat spreading of the thermal runaway battery cell can be effectively isolated.

The invention relates to the technical field of functional materials, and discloses a nickel-based chalcogenide catalyst and a preparation method and application thereof.The preparation method comprises the steps that Ni-MOF precursor powder is prepared through coordination; carrying out chemical vapor deposition reaction on the Ni-MOF precursor powder and chalcogenide elementary substance powder, pyrolyzing and grinding to obtain the nickel-based chalcogenide catalyst. The electron deficiency degree of the nickel site can be regulated and controlled through the chalcogenide element, and in a membrane electrode assembly test, the prepared nickel-based chalcogenide catalyst shows excellent CO selectivity and stability and is suitable for preparing carbon monoxide through carbon dioxide electroreduction.