3041 results about "Adhesion force" patented technology

The invention belongs to the technical field of functional materials, and particularly relates to a micro-nano coating material with low surface energy and a preparation method thereof. The preparation method comprises the following steps of mixing composite microspheres with micro sodium structure and hydrophobic nature, matrix resin with contact angle more than 90 degrees with coating film, solvent, powder, and additive, and adopting a co-mixing method, an in-situ emulsion polymerizing method, an in-situ solution polymerizing method, an in-situ concentration and polymerizing method, an in-situ addition and polymerizing method and the like, so as to prepare the coating material with micro-nano structure; performing spraying, brushing, roll coating, photo-etching, 3D (three-dimensional) printing, mechanical processing and the like, drying and curing at the temperature of 0 to 1000 DEG C, and coating the coating material with micro-nano structure onto different matrix surfaces, so as to obtain the micro-nano coating material with low surface energy and groove structure. The micro-nano coating material has the advantages that the preparation technology is simple, the coating hardness is high, the water-resistant property is good, the adhesion force to different matrix surfaces is strong, and the micro-nano coating material can be used for self-cleaning, resistance-reducing, denoising, anti-icing and other functional materials.

The invention discloses an aluminum pulp composition of a crystal silicon solar cell and a preparation method thereof, wherein an aluminum pulp is prepared by the following compositions in percentage by weight: 50-85 percent of spherical aluminum powder, 2-15 percent of lead-free glass adhesive, 10-35 percent of organic carrier and 0.5-6 percent of metal/nonmetal power additive. The prepared aluminum pulp is used for a single crystal silicon solar cell, can enable warpage of a silicon wafer to be small, and aluminum films are dense and uniform, have no aluminum pills, do not bulb and have strong adhesion force and high photoelectric conversion efficiency.

The invention relates to a hydrolysis-resistant double-component polyurethane adhesive for structure adhesion. The hydrolysis-resistant double-component polyurethane adhesive for structure adhesion consists of a component A and a component B, wherein the component A comprises the following components in part by weight: 30 to 70 parts of polyisocyanate resin, 5 to 20 parts of plasticizing agent, 0.25 to 5 parts of thixotropic agent, 10 to 50 parts of incremental filler and 0.25 to 1 part of water-removing agent; and the component B comprises the following components in part by weight: 5 to 30 parts of polyester polyol, 5 to 30 parts of vegetable oil polyol, 5 to 30 parts of polyether polyol, 3 to 15 parts of water-absorbing filler, 1 to 10 parts of thixotropic agent, 3 to 15 parts of incremental filler, 0.1 to 10 parts of pigment, 0.1 to 5 parts of adhesion force accelerator, 0.1 to 2 parts of chain extender and 0.01 to 0.2 part of catalyst. An adhesion system improves adhesion property, solves the problem that a thermosetting composite material is subjected to surface roughening treatment before adhesion and improves the using efficiency. Aiming at the problem of poor hydrolysis resistance of a polyester type polyurethane adhesive system, the hydrolysis resistance is improved through molecule design of polyurethane soft and hard sections.

The invention relates to a high-performance jet ink. The jet ink comprises the following components by weight percent: 20-80% of solvent, 1-45% of cosolvent, 4-20% of adhesive, 0.5-20% of colorant, 0-5% of adhesion force promoter, 0.01-2% of wax powder, 0-2% of brightening agent and 0-5% of other additives. As adhesion force promoter is added in the jet ink, the adhesion performance on base materials such as glass, metal, polypropylene or polyethylene is increased. In addition, wax is added to increase wear resistance and scratch resistance, and brightening agent is added to increase the lustrousness, brilliance and definition of the ink. The product has high adhesion force, good wear resistance, high lustrousness and definition and good compatibility, thus the defects of the existing ink such as low lustrousness, poor wear resistance and low definition can be greatly improved and the jet ink has good market prospect.

A composite member is joined to another composite or noncomposite member, using liquid or paste adhesive resin that cures in the joint. The joint is configured in such a way that the adhesive forms an interlocking key within recesses in the joined members that prevents joint disassembly once the adhesive has cured and hardened. Both of the members are provided with recesses extending along their lengths in the joint. The recesses register with each other to define a cavity and may undulate. The recessed are designed in such a way as to take the full load capability if the joint, even if there is no adhesion to the joined members. Adhesive is injected into the cavity through injection ports spaced periodically along the length of the joint.

The invention provides high hydrophobic static-electricity conducting anti-icing coating and a method for producing the same, aiming at solving the problem existing in the prior art that the common low surface energy coating can not balance both hydrophilic characteristic and static-electricity conducting function. According to the technical scheme adopted to solve the problem, the high hydrophobic static-electricity conducting anti-icing coating comprises component A and component B, wherein the weight ratio of the component A to the component B is 9-16:1. The component A comprises the following materials by weight percent: 35-60 percent of the fluorocarbon resin, 10-40 percent of conductive powder, 1-8 percent of organic silicon compound, 0.5-3 percent of anti-aging agent, 0.5-5 percent of dispersant, 0.5-3 percent of anti-sedimentation agent and 10-40 percent of organic solvent. The component B is aliphatic and/or aromatic curing agent. After being coated on the surface of an electric wire, the high hydrophobic static-electricity conducting low surface energy anti-icing coating can delay the icing and reduce the adhesion force of the ice and the surface of the electric wire. In addition, with the static-electricity conducting performance, the high hydrophobic static-electricity conducting low surface energy anti-icing coating can protect the electric wire against lightning stroke.

A system and method of releasably mounting a device, usually to a ceiling, is disclosed. The system has a ceiling mounted unit (200) and a device mounted unit (250), releasably joined preferably by an magnetic coupling (202) which engages a floating plate (252) allowing for positive coupling even if the units are misaligned. A safety latch (256) with a locking/latching claw (260) and ejection/disengagement prong (266) provide positive locking and a method of separating the units despite strong adhesion forces.

The invention discloses a hierarchical system used for a four-wheel-hub motor-driven electric automobile, and a control method. First of all, yaw moment is calculated as a yaw moment decision-making layer according to a vehicle speed sensor, a steering wheel rotary angle transmitter, an electronic throttle sensor and an inertia measurement unit; then according to automobile longitudinal force constraints, yaw moment constraints, a maximum adhesion force which can be provided by a pavement and restrictions of motor maximum output moment, target torque of each wheel hub motor is calculated as a target optimization analysis layer; and finally, degrees of similarity to six standard pavements are obtained by inputting two parameters, i.e., an adhesion coefficient and a wheel slip rate into a pavement adhesion coefficient estimation fuzzy controller by means of a current pavement, and an adhesion coefficient estimated value of the current pavement is obtained as a pavement adhesion coefficient monitoring layer after weighted averaging is performed. According to the invention, whole-vehicle stability is taken as a control target, motor torque is reasonably distributed according to operation working conditions, and the controllability, the stability and the economic property of vehicles are improved.

An organosilicon modified aqueous polyurethane resin comprises the following raw materials in percentage by weight: 10 to 20 percent of isocyanate, 20 to 40 percent of polyester polyol, 0.1 to 5 percent of organic silicon oil, 2 to 5 percent of a hydrophilic chain extender, 2 to 5 percent of a polyol chain extender, 1 to 3 percent of a polybasic amine chain extender, 0.01 to 1 percent of a catalyst, 1 to 4 percent of a salifying agent, 5 to 8 percent of a solvent and the rest of water. The emulsion made by the organosilicon modified aqueous polyurethane resin is obviously better than the emulsion made by a non-modified aqueous polyurethane resin regarding adhesion force, abrasion resistance, heat tolerance, smoothness, etc. The polyurethane emulsion made by the organosilicon modified aqueous polyurethane resin can be applied to the surface of a product through spray coating, brush coating, roller coating and dip coating. At present, the polyurethane emulsion is mainly used for the coating of the surfaces of gloves, condoms, medical ducts, etc.

The invention provides a preparation method of a silicon dioxide super-hydrophobic thin film. The preparation method comprises the following steps of: step one. preparing alkaline colloidal sol, namely mixing orthosilicate ester, a basic catalyst, a solvent and water to prepare the SiO2 alkaline colloidal sol; step two. adding hexamethyl disilazane to the SiO2 alkaline colloidal sol for reaction to obtain modified SiO colloidal sol; and step three. coating the modified SiO colloidal sol on the surface of a substrate, and drying to obtain the silicon dioxide super-hydrophobic thin film. The invention also provides a super-hydrophobic material. The silicon dioxide super-hydrophobic thin film prepared by the method has strong adhesion force with a substrate and a good dewatering effect; complicated equipment is not needed; the process is simple; the preparation cycle is shortened; the cost is saved; and the application range is wide.

A low molecular weight full color organic electroluminescent device and a method to fabricate the low molecular weight full color organic electroluminescent device enable scale-up and mass-production of an organic electroluminescent device of high resolution by providing a donor film of a low molecular weight full color organic electroluminescent device, the donor film including a substrate film; a photothermal conversion layer formed on the upper part of the substrate film; and a transfer layer formed on the upper part of the photothermal conversion layer and formed of a low molecular weight material. A part of the transfer layer that is irradiated and heated by a laser is separated from the photothermal conversion layer according to a change of an adhesion force of the transfer layer with the photothermal conversion layer, while part of the transfer layer which is not irradiated by the laser is fixed to the photothermal conversion layer.

A curve-shaped display module, a manufacture method thereof, and a manufacture apparatus for manufacturing the same are provided. The manufacture apparatus includes a curve-forming mold, a curable material-dispensing device, and a curing device. The manufacture method includes the following steps: pressing the display panel to make the display panel have a curved shape and a first curved surface by using the curve-forming mold; distributing a curable material on the first curved surface by using the dispensing device; and curing the curable material to form a cured casing by using the curing device. The display module has the display panel having the first curved surface and the cured casing formed from the curing of the curable material. The cured casing covers and is closely attached to the first curved surface with an adhesion force therebetween to sustain the curved shape of the display panel.

The invention discloses an ultra-thin fireproof coating for a steel structure and a preparation method thereof. The coating has the characteristics of high gloss, good water resistance, strong adhesion force and so on of a solvent based ultra-thin fireproof coating, also has the advantages of water-based coatings by taking water as a medium, and satisfies the direction of developing low-pollution and environment-friendly coatings of the coating industry. The technical proposal comprises that the ultra-thin fireproof coating for the steel structure is prepared from the following components by weight portion: 10 to 35 portions of acrylic hybrid emulsion, 10 to 25 portions of dehydration and carbon-forming catalyst, 10 to 25 portions of carbon forming agent, 5 to 20 portions of foaming agent, 5 to 20 portions of flame retardant, 5 to 25 portions of pigment and filler, 3 to 10 portions of reinforcing agent, 5 to 10 portions of latent solvent, 1 to 5 portions of dispersant, 0.1 to 1 portion of foam killer, 0.2 to 2 portions of flatting agent, 0.2 to 2 portions of thickening agent, 1 to 5 portions of film forming additive, and the balance being water.

A curable composition for use as a sealant, in which the curable composition comprises a silicone fluid in an amount from about 80 wt % to about 90 wt %, a vinyl group containing polyorganosiloxane in an amount from about 10 wt % to about 20 wt %, a hydrogen containing polysiloxane in an amount from about 0.5 wt % to about 2.0 wt %, and a hydrosilation photocatalyst in an amount from about 5 ppm to about 100 ppm. The sealant cures in about 1 second to about 20 seconds during reaction of the vinyl group containing polydiorganosiloxane and the hydrogen containing polysiloxane, by exposure to ultraviolet radiation, in the presence of the hydrosilation photocatalyst. The sealant has an adhesion force to plastic from about 2.0 N/100 mm to about 4.0 N/100 mm.

The invention relates to a halogen-free low dielectric resin composition and a prepreg and copper clad laminate made of the same. The halogen-free low dielectric resin composition comprises the following components in part by weight of organic solid content: 5 to 90 parts by weight of epoxidized polybutadiene resin, 10 to 90 parts by weight of benzoxazine resin, 10 to 90 parts by weight of epoxy resin, 1 to 50 parts by weight of curing agent, 10 to 50 parts by weight of organic flame retardant, 0.001 to 1 part by weight of curing accelerator, 0.1 to 10 parts by weight of initiator and 10 to 100 parts by weight of fillings. Due to the adoption of the epoxidized polybutadiene in the halogen-free low dielectric resin composition disclosed by the invention, not only are the defects of polybutadiene improved, but also the advantages on the aspects of dielectric and flexibility are well kept and the adhesion force between the halogen-free low dielectric resin composition and a copper foil is improved; and the prepreg and copper clad laminate for a printed circuit board, which is made of the resin composition, has excellent dielectric performance, good heat resistance and high glass transition temperature and the requirements on the high frequency of transmission of an electronic signal and high speed of information processing in the industry of the printed circuit copper clad laminate can be met.

A substrate structure applied in flexible electrical devices is provided. The substrate structure includes a carrier, a release layer overlying the carrier with a first area and a flexible substrate overlying the release layer and the carrier with a second area, wherein the second area is larger than the first area and the flexible substrate has a greater adhesion force than that of the release layer to the carrier. The invention also provides a method for fabricating the substrate structure.

The invention discloses a screen printing conductive printing ink composition which comprises the following components in percentage by mass: 20-70 percent of conductive material powder, 1-20 percent of epoxy resin, 0.2-15 percent of epoxy resin latent curing agent, 1-30 percent of thermoplastic resin, 5-60 percent of organic solvent and 0-5 percent of epoxy resin flexibilizer. The preparation method comprises the following steps: mixing the thermoplastic resin powder and the organic solvent, mixing the epoxy resin, the epoxy resin flexibilizer and the epoxy resin latent curing agent to obtain a thermoplastic resin system, adding the conductive material powder to the thermoplastic resin system, mixing the conductive material powder with the thermoplastic resin system; and finally, adding the organic solvent to regulate the viscosity, thus obtaining the screen printing conductive printing ink composition. The product has the advantages of high mechanical strength, stable electrical properties, excellent chemical resistance, high base material adhesion force, low volatile organic compound (VOC) content and the like.

The invention provides a metal surface vitrification agent and an application method thereof, aiming for solving the problem of possibility of environmental pollution caused by waste water discharge in a treatment process or after treatment in the existing metal surface phosphating treatment technology. According to the invention, the metal surface vitrification agent comprises 2.0-38.0% of zirconium titanium salt, 0.1-8.0% of silane, 0.5-18.0% of a buffer agent, 0.01-5.00% of film forming assistant, 0.1-6.1% of an anti-rust agent and 0.2-7.0% of a complexing agent, wherein the surface appearance is clear transparent liquid and no suspended matter exists; pH value is 1-2, and the specific gravity is 1.05+/-0.02 g/cm<3>. The metal surface vitrification agent has the advantages that an embedded hybrid indissolvable nanometer ceramic conversion coating is formed on the metal surface at normal temperature and is excellent in impact resistance, the adhesion force of the coating is improved, and the corrosion resistance of the metal surface is enhanced. In addition, the metal surface vitrification agent, provided by the invention, contains no component capable of causing environmental pollution, and can be directly discharged without environmental pollution.

The invention discloses a pre-fabricated concrete box culvert, the assembly structure thereof and an assembly method. The invention can ensure that the mortar is completely filled on a connecting surface of the pre-fabricated concrete box culvert, thereby furthest reducing the pre-stress damage caused by the sliding when the reinforcing steel bar is fixed, and allowing the pre-fabricated concrete box culvert to be assembled into a structure with extremely strong adhesion force, firmness and reliability, furthest reducing the loss of the bundled reinforcing steel bars and avoiding the damage to the structure.

A method for transferring at least one device is provided. The method includes: coating a first adhesive layer onto a first carrier substrate; putting the device onto the first adhesive layer, such that the first adhesive layer temporarily adheres the device thereto; reducing adhesion force of the first adhesive layer to the device while remaining a location of the device in a controllable region on the first adhesive layer, wherein the first adhesive layer has a Young's modulus less than or equal to 30 GPa before and after the adhesion force of the first adhesive layer is reduced; and transferring the device from the first adhesive layer to a receiving substrate after the adhesion force of the first adhesive layer is reduced.