114 results about "Silicone coating" patented technology

In a release paper consisting of a backing paper layer coated on at least one side with PVOH and a silicone coating on at least one side, in which the backing paper layer coated on at least one side with PVOH consists of bleached kraft paper, containing at least up to 30 wt. % softwood and hardwood with a total freeness between 30 °SR and 42 °SR, preferably between 33 °SR and 38 °SR, and processing aids, and also a release layer which is applied at least on one side to the PVOH-coated side of the backing paper layer and consists of 0.5 to 5 g / m2 of a silicone, and wherein the release paper coated at least on one side with PVOH and silicone has a density between 850 and 990 kg / m3, preferably between 900 and 970 kg / m3, and a method for producing a release paper.

To provide a method for easily peeling a silicone coating layer in order to enable recycling of an air bag base fabric having the silicone coating layer on the surface, and to provide a silicone coating layer peeling liquid therefor SOLUTION: A method for recycling an airbag base fabric, the method including an immersion step of immersing an airbag base fabric in a silicone coating layer peeling liquid that is an aqueous solution containing 2% by weight to 30% by weight of an alkali component, 0.05% by weight to 20% by weight of a surfactant, and 1% by weight to 30% by weight of an alcohol component, and a peeling step of peeling the silicone coating layer from the airbag base fabric after the immersion, wherein an ash content of the airbag base fabric after the peeling step is 0.01% to 0.45%.SELECTED DRAWING: None

This utility model discloses a high-waterproof USB connector, including a first housing, a second housing, a male connector head, and a waterproof sealing sleeve. The male connector head includes a plug portion and a rear plug portion located at the rear end of the plug portion, with a transition step formed between the plug portion and the rear plug portion. The first housing has a first chamber, and the plug portion is located within the first chamber. The second housing has a second chamber, and the rear plug portion is located within the second chamber. The waterproof sealing sleeve has a U-shaped structure with a snap-fit ​​groove in its middle. The transition step is used to seal against the inner wall of the waterproof sealing sleeve when the plug portion passes through the snap-fit ​​groove. The inner wall surface of the waterproof sealing sleeve that abuts against the transition step is coated with a silicone coating. This utility model achieves flexible fit, reduces gaps, and effectively improves the waterproof sealing performance of the USB connector by sealing the transition step against the inner wall of the waterproof sealing sleeve and coating the inner wall of the waterproof sealing sleeve with a silicone coating.

The invention discloses a heat-insulating silicone coating and a preparation method thereof, belonging to the technical field of thermal insulation materials. Linear hydrogel is wrapped on the surface of sepiolite fiber / alumina aerogel and used as a bridge to provide uniformly dispersed anchoring points for subsequent cage-like hybrid nanospheres. The cage-like hybrid nanospheres are then used as a cross-linking agent on the surface. Cross-linkable double bonds exist on the surface of the cage-like hybrid nanospheres, thereby forming a ball-chain composite unit structure based on the original linear hydrogel, and polymerizing and cross-linking into a network. After calcination, the cage-like hybrid nanospheres inside are transformed into core-shell carbon nanospheres, which inhibit crack propagation. Carbon chains derived from the linear hydrogel form a macroporous structure, while a mesoporous structure is generated between the cross-linking points of the cage-like balls. The microporous structure is retained inside the core-shell balls, and a better heat-insulating effect is achieved through a multi-level stepped pore structure.

A method of manufacturing a covered stent is disclosed. The method includes winding a first PTFE tape around a cylinder body of a jig, winding a second PTFE tape around a stent including the jig fitted therein, heating the stent in an oven, fitting the stent into upper and lower elastic members, fitting the elastic members into a mold, pressing the upper elastic member to bond the PTFE tapes to each other and to thus form a first film at a cylindrical body of the stent, taking the elastic members out of the mold, taking the stent out of the elastic members, removing the jig from the stent, forming a silicone coating layer at an expansion portion of the stent, and sewing the spaces in the expansion portion, the second PTFE tape, and the silicone coating layer to form a second film at the expansion portion.

This invention discloses a carbon capture article comprising: (i) a ceramic honeycomb assembly including an inlet end, an outlet end, and intersecting walls defining cells through which fluid can flow; (ii) a zeolite coating at least partially covering the intersecting walls of the ceramic honeycomb assembly; and (iii) a silicone resin coating at least partially disposed on the zeolite coating. The zeolite coating may be a 13-X type zeolite. The silicone resin may be a siloxane resin. This invention also discloses a method for manufacturing the carbon capture article, the method comprising a silicone coating step, the silicone coating step comprising coating a silicone resin at least partially onto the zeolite coating to form the carbon capture article, the zeolite coating at least partially covering the intersecting walls of the ceramic honeycomb assembly. Finally, this invention discloses a method for capturing carbon dioxide from the air, the method comprising a flow step, the flow step comprising passing a fluid containing carbon dioxide (CO2) molecules through the carbon capture article.

The invention relates to a sealing unit (1) comprising a sealing carrier (2), a sealing lip unit (3) having at least one sealing lip (3.1) and held by the sealing carrier (2), and a sealing washer (4) that is in contact with the at least one sealing lip (3.1). The at least one sealing lip (3.1) is coated with a synthetic resin silicone (5.1). The present invention further relates to a wheel bearing unit (RL) comprising such a sealing unit (1).

The invention discloses a range hood, a grease detection method and a cleaning control method.The range hood comprises a centrifugal fan, the centrifugal fan comprises a volute and an impeller arranged in the volute, the impeller comprises blades, the surfaces of the blades are provided with organic silicon coatings, and the organic silicon coatings are provided with calcium silicate filler; the detection module comprises a transmitting module capable of transmitting pulse laser to the blade at the corresponding position and a receiving module for receiving the laser reflected by the blade; and the processing assembly is electrically connected with the detection module and can judge the oil film thickness, the grease type and the oxidation degree of the grease on the blade according to the spectral line of the laser received by the receiving module.

The application relates to the technical field of silicone coating preparation, and discloses a preparation method and application of white fluorine-free photovoltaic coating. 1 )4, R 2 Si(OR 3 )3, R 4 2Si(OR 5 )2, R 6 Si(OR 3 )3 and R 4 Si(OR 5 )3 are hydrolyzed and polycondensated in mixed acid solution to obtain a silicone resin; 100 parts of the silicone resin is mixed with 20-100 parts of an organic silicon modified hydroxyl acrylic resin coating prepared according to a specific ratio and 50-200 parts of titanium white paste prepared according to a specific ratio, and the white fluorine-free photovoltaic coating is obtained. The white fluorine-free photovoltaic coating has good adhesion and adhesion force to a photovoltaic substrate, high hardness, good scratch resistance and aging resistance, and high light reflectivity.

The invention discloses a preparation method of an electron beam irradiation molded organic silicon coating, which introduces a vinyl active group into organic silicon resin, and comprises the following steps: taking 100 parts of cyclic monomer, adding into a reaction kettle, carrying out negative pressure pretreatment for 1 hour at the kettle temperature of 80 DEG C, adding 1-4 parts of end-capping reagent and 0.4-1 part of catalyst, heating to 100-110 DEG C, carrying out heat preservation and pressure reduction for 2-4 hours, and cooling to room temperature to obtain the electron beam irradiation molded organic silicon coating. Continuously heating to 180-190 DEG C, evaporating at high temperature, and adding 2-5 parts of hydrogen-containing silicone oil to obtain a product organic silicon resin; the preparation method comprises the following steps: coating a glass plate and a polyester fabric with organic silicon resin, putting the glass plate and the polyester fabric into an irradiation box at room temperature, keeping nitrogen atmosphere in the box, and taking out the glass plate and the polyester fabric after the irradiation dose reaches 30-100kGy, so as to obtain the organic silicon coating formed by electron beam irradiation. The method has the advantages of being adjustable in energy, controllable in dosage, high in treatment speed, free of pollution, free of radioactive waste and the like. The thermal stability and the aging resistance of the coating are improved.

The invention provides preparation of a solvent-free organic silicon coating material and application of the solvent-free organic silicon coating material in manufacturing of simulated dinosaur, and belongs to the technical field of preparation of coating materials. The method comprises the following steps: (1) modifying nano-cellulose by adopting organosilicon quaternary ammonium salt and a silane coupling agent, endowing the nano-cellulose with efficient antibacterial performance, and remarkably improving the interfacial compatibility of the nano-cellulose and organosilicon resin; and (2) uniformly dispersing the modified nanocellulose as a functional filler in a hydroxyl-terminated polysiloxane (107 silica gel) matrix, adding a cross-linking agent and a catalyst, and curing at room temperature to obtain the solvent-free organic silicon antibacterial coating material. The obtained coating material has excellent mechanical strength and antibacterial property, and no volatile organic compounds (VOC) are discharged in the using process. The method has a wide application prospect in the fields of children toys, biomedical devices and the like with strict requirements on antibacterial safety and environmental protection.

The invention relates to the technical field of coatings, and particularly provides a novel organic silicon coating and a preparation method thereof, and the novel organic silicon coating comprises organic silicon, resin, hollow glass beads and the like. The novel organic silicon coating has a unique organic silicon resin-hollow glass bead system, the flexibility of the novel organic silicon coating is improved by modifying organic silicon through the hollow glass beads, the stability of the organic silicon resin is improved in combination with the water-based acrylic resin, and finally the temperature difference resistance of the novel organic silicon coating is improved; and the application range under different temperature conditions is greatly expanded.

The present invention relates to a composition comprising an MQ resin, a ZO-terminated poly(dimethylsiloxane), and mica, which is useful as a coating on a substrate, the coating exhibiting adhesion, uniformity, and crack resistance when exposed to elevated temperatures for hundreds or even thousands of hours.

A silicone coating film provided as a surface layer of an irradiated object exposed to ultraviolet irradiation, includes a silicone rubber as a base material and titanium oxide particles with an average particle size of less than 100 nm. A laminated structure includes a first layer including a silicone rubber as a base material, and a second layer laminated on the first layer, wherein the second layer is the silicone coating film.

The invention discloses an organic silicon coating coating method and device for a 25KN rod type porcelain insulator of a high-speed railway overhead line system in the technical field of electrified traffic of high-speed railways, and the method comprises the following steps: S1, cleaning and drying the rod type porcelain insulator to be processed, and then carrying out activating treatment on the rod type porcelain insulator; s2, coating the two ends of the rod-shaped porcelain insulator treated in the step S1 with organic silicon coatings, and drying and curing the rod-shaped porcelain insulator; s3, fixing the rod-shaped porcelain insulator by taking the end part of the rod-shaped porcelain insulator treated in the step S2 as a contact point, and coating the fixed rod-shaped porcelain insulator with an organic silicon coating; s4, curing the rod type porcelain insulator treated in the step S3; according to the method, before overall spraying is conducted on the rod-type porcelain insulator, the end areas of the two ends of the rod-type porcelain insulator are subjected to immersion liquid coating in advance, curing is completed, a complete and firm functional coating is formed, and therefore the technical problem that in a traditional spraying process, due to clamping and fixing, the ends are missed to be coated is effectively solved.

The utility model relates to the related technical field of circuit boards, in particular to an etching liquid fine line distribution circuit board, which comprises a bottom plate and threaded holes, a mounting mechanism is arranged on the surface of one side of the bottom plate, and a fireproof mechanism is arranged on the surface of one side of the circuit board. According to the etching liquid fine line distribution circuit board, on the aspect of fireproof protection, multiple coatings which are sequentially coated provide strong fireproof guarantee for the circuit board, and the flame-retardant paint coating can prevent flame from spreading and slow down the burning speed; the fireproof silica gel coating forms a barrier and is weather-proof and sealed; the ceramic coating is resistant to high temperature and stable in insulation; the intumescent fire retardant coating expands and insulates heat at high temperature; the nanometer fireproof coating is efficient in flame retardance and simple in construction, in the aspect of installation, the bottom plate is fixed through the threaded holes, the pressing blocks are extruded to achieve fixation of the connecting frame and the fixing blocks, operation is convenient and fast, the installation efficiency is improved, the cost is reduced, fixation is firm, and it is ensured that the circuit board is stable and does not shake or move in the use and transportation process.

The invention belongs to the technical field of high polymer materials. The invention provides a flexible flame-retardant heat-insulating organic silicon coating foaming material. The flexible flame-retardant heat-insulating organic silicon coating foaming material comprises the following foaming components in parts by weight: 90-100 parts of an organic silicon prepolymer, 20-40 parts of nano aluminum hydroxide, 10-20 parts of a phosphorus-nitrogen flame retardant, 5-10 parts of nano clay, 5-15 parts of a cross-linking agent, 0.1-0.5 part of a catalyst, 1-3 parts of a foaming agent, 3-8 parts of silicon carbide nanowires and 1-2 parts of a silane coupling agent, and an organic silicon flame-retardant coating is sprayed on the surface of the foaming material. The tensile strength of the material prepared by using the modified polydimethylsiloxane, the hydrogen-containing silicone oil and the silane coupling agent as matrix prepolymers is greater than or equal to 1.5 MPa, and the elongation at break is greater than 150%; the heat conductivity coefficient is less than or equal to 0.05 W / (m.K); the UL-94V-0 grade is achieved, and no molten drop exists under the flame of 800 DEG C; and after being soaked in liquid nitrogen in an environment of-193 DEG C for 24 hours, the coating does not deform or crack.

The utility model discloses an adjustable label peeling mechanism relates to label peeling technical field, including the peeling body, the middle part fixed mounting of peeling body has the pressing device, the left side fixed mounting of peeling body has the separation subassembly, and the lower end fixed mounting of peeling body inside has the guiding device. The utility model discloses an adjustable label peeling mechanism, utilize the left side of fixed base plate to be the inclined plane, make the base paper to be in the state of bending, when the material quality of label paper is hard, when label paper moves to the top of folding roller, automatic and base paper separate, realize the peeling of label paper, and it is convenient to the peeling of label paper, through setting scraper, separate label paper and base paper, make label paper in the outer surface of base paper and rise, make the device can adapt to base paper and label paper of different material quality, improve the adaptability of device, through setting silicone coating board, the glue layer stays on the label when peeling, do not remain base, and the device can adapt to base paper and label paper of different width.

A method of manufacturing a covered stent is disclosed. The method includes winding a first PTFE tape around a cylinder body of a jig, winding a second PTFE tape around a stent including the jig fitted therein, heating the stent in an oven, fitting the stent into upper and lower elastic members, fitting the elastic members into a mold, pressing the upper elastic member to bond the PTFE tapes to each other and to thus form a first film at a cylindrical body of the stent, taking the elastic members out of the mold, taking the stent out of the elastic members, removing the jig from the stent, forming a silicone coating layer at an expansion portion of the stent, and sewing the spaces in the expansion portion, the second PTFE tape, and the silicone coating layer to form a second film at the expansion portion.

A double-sided packaged LED vehicle lamp light source for vehicle lamps, the double-sided packaged LED vehicle lamp light source comprising a thermally conductive insulating substrate (1). Copper foil trace covering layers (102) are symmetrically laid on two sides of the thermally conductive insulating substrate (1), and an LED chip (2) is mounted on one side of each copper foil trace covering layer (102). The outer side of each LED chip (2) is covered with a fluorescent ceramic film (3) and a silicone coating (4) in sequence from inside to outside. By means of using the thermally conductive insulating substrate (1) made of a ceramic material, there is no need to add an insulating layer, and the advantages of lower thermal resistance and a better thermal conduction effect are achieved; and by means of directly packaging the LED chips (2) on the thermally conductive insulating substrate (1) having a thickness of 0.4-0.5 mm, LED light-emitting points on two sides are closer; therefore, a light-emitting center of a filament is better simulated, the luminous efficiency is better than that of a surface-mount device approach, surface-mount device processes are reduced, and the precision is higher.

The invention relates to a coated heating element (1) for a domestic article, comprising a metal base (2) coated on at least one face (2a) by a coating (3) which does not contain fluorocarbon resins and which comprises at least the following layers in the following order from the metal base (2): (3a) a base coat comprising polyethersulfone (PES); (3b) one or more intermediate layers (3b) comprising polyethersulfone (PES) or a mixture of polyethersulfone (PES) and one or more silicones; (3c) a top coat consisting of an elastomeric silicone derived from at least one organopolysiloxane bearing vinyl reactive functions (-CH=CH2) and at least one other organopolysiloxane bearing hydrosilyl reactive functions (Si-H) or mercaptan reactive functions (S-H), and optionally: one or more thermoplastic polymers, and / or one or more additives, and / or one or more colorants; layer (3a) being different from at least one of layers (3b).

The invention relates to the technical field of bridge plugs, in particular to a soluble bridge plug for oil and gas field fracturing and a preparation method thereof. The soluble bridge plug comprises a bridge plug body and a rubber sleeve arranged on the bridge plug body in a sleeving mode. Wherein an organic silicon coating is arranged on the outer surface of the rubber sleeve. The soluble bridge plug provided by the invention contains the organic silicon coating, on one hand, the organic silicon coating can effectively delay the dissolution speed of the rubber sleeve and can realize effective pressure bearing of the soluble bridge plug during fracturing operation, and on the other hand, the organic silicon coating can fall off from the rubber sleeve after fracturing operation, and dissolution of the rubber sleeve cannot be hindered.

The invention relates to the technical field of high polymer material auxiliaries, and particularly discloses a preparation method of a silicone-coated PTFE anti-dripping agent, which comprises the following steps: 1, preparing an anchoring separant, mixing silicone rubber, inorganic powder and a coupling agent, and carrying out dynamic grafting reaction under the action of an initiator to construct an intermediate with a chemical bonding structure; 2, preparation of an anti-dripping agent: S1, mixing suspension polymerization PTFE with an anchoring separant in a high-speed mixer, and disassembling PTFE aggregate; s2, at a specific rotating speed, spraying a liquid silicone coating agent into the machine through an atomizing nozzle for wet mixing, so that a liquid phase forms a uniform adsorption layer on the surface of the anchoring separant; s3, after cooling, emulsion polymerization PTFE is added for low-speed mixing, and early fibrosis is prevented; and S4, standing and aging to enable the interface to reach adsorption equilibrium. According to the anti-dripping agent, the problem of crystal points caused by easy agglomeration of PTFE in a matrix is solved, so that the prepared anti-dripping agent improves the surface quality and mechanical toughness of a highlight injection molded part while ensuring the flame retardant property.

This invention discloses a method for coating the surface of a new energy battery with a two-component organosilicon, comprising the following steps: Step S1, thoroughly mixing component A and component B of the two-component organosilicon in a specified ratio; Step S2, cleaning the surface of the new energy battery; Step S3, coating the thoroughly mixed two-component organosilicon onto the surface of the new energy battery by spraying or 3D printing. This invention, by coating the surface of the new energy battery with a layer of two-component organosilicon to replace the blue film covering the surface, reduces the complexity and difficulty of the encapsulation process, improves encapsulation efficiency and production line flexibility, facilitates the encapsulation of liquid cooling plates in downstream assembly plants, and can prevent temperature imbalance in individual new energy batteries.

The application discloses a kind of negative pressure drainage medical polyurethane sponge and preparation method thereof.Belongs to medical material technical field, using the preparation method provided by the application, a kind of new porous medical polyurethane sponge is prepared, which is wrapped with smooth silicone coating having physiological inertia, biocompatibility and low surface energy characteristics.The new medical porous sponge not only has good liquid conducting performance, comfortable wound experience, but also does not adhere to the new granulation at wound site for a long time, so as to avoid secondary wound trauma during dressing change.Therefore, it has very significant effect on the use of negative pressure drainage technology.

The present disclosure relates to a hydrosilylation-curable silicone coating composition comprising a filler blend (b) of hydromagnesite and huntite, a method for coating textile materials and / or airbags with the hydrosilylation-curable silicone coating composition, and textile materials and airbags coated with the cured product of the hydrosilylation-curable silicone coating composition.

The present application relates to the technical field of silicone coating, in particular to a silicone resin-based temperature-resistant lubricating coating and a preparation method thereof.The present application provides a silicone resin-based temperature-resistant lubricating coating, which takes temperature-resistant silicone resin as a matrix, cooperates with high-temperature-resistant lubricating fillers, solvents and additives, realizes the comprehensive improvement of the high-temperature resistance, lubricity, adhesion and toughness of the coating through component synergy and process optimization, and is simple in preparation process, suitable in cost and suitable for industrialized production.The present application takes temperature-resistant silicone resin as a high-temperature stable organic-inorganic hybrid bonding phase, through the complementary lubrication of the layered structure of the high-temperature-resistant lubricating fillers, the wide-temperature-range functional matching and the antioxidation synergistic protection, a composite coating system which can continuously provide low-friction and long-life lubricating effect in the range from room temperature to high temperature is constructed.

A hydrosilylation curable textile coating composition comprises: (a) a linear organopolysiloxane polymer having at least two alkenyl and / or alkynyl groups per molecule; (b) a reinforcing filler comprising at least one of fumed silica, precipitated silica, or calcium carbonate; (c) a linear trimethyl terminated polydimethyl methylhydrogen siloxane containing at least two silicon-bonded hydrogen groups per molecule; (d) a hydrosilylation cure catalyst; (e) an organosilicon resin; and (f) an adhesion promoter comprising a mixture and / or reaction product of: (i) one or more alkoxysilanes having an epoxy group in the molecule; (ii) a linear organopolysiloxane oligomer containing at least one alkenyl group and at least one hydroxy or alkoxy group per molecule; and (iii) an organometallic condensation reaction catalyst comprising organoaluminum or organozirconium compounds. Air bags and air bag fabrics can be coated with the hydrosilylation curable textile coating composition, and the resulting air bags and fabrics generally have enhanced scrub resistance.

The invention relates to the technical field of organic silicon coating application, and discloses a method for improving the film-forming property of an organic silicon coating based on a vegetable oil solvent, and the method comprises the following steps: S1, carrying out surface treatment on a base material, the surface treatment comprises at least one operation of cleaning, polishing and primer application, so as to improve the adhesive force of the base material and the coating; and S2, applying an organic silicon coating based on a vegetable oil solvent to the surface of the treated base material, and curing the coating to form a paint film by controlling construction environment conditions. Compared with the prior art, the method has the advantages that the defects possibly occurring during construction and film forming of the vegetable oil-based organic silicon coating in the prior art are overcome, and a systematic method is provided. According to the method, through cooperative adjustment of base material pretreatment, construction environment control and a curing process, it is guaranteed that a paint film which is uniform, compact and high in adhesive force is formed by the paint.

The application discloses water-based organic silicon coating, a preparation method and application thereof, and belongs to the technical field of coating materials.The water-based organic silicon coating comprises 100 parts of water-based vinyl silicone resin, 3-20 parts of water-based hydrogen-containing silicone resin, 3-20 parts of water-based catalyst, 5-20 parts of filler, 3-10 parts of wax emulsion and 50-200 parts of water-based solvent.The water-based organic silicon coating has the advantages that the formed coating has flatness, wear resistance, toughness, excellent touch and high environmental protection, can be applied to the surface of a flexible base body in the fields of 3C digital products, automobile interior decoration and smart wearing, raw materials are easy to obtain, the preparation process is simple, the requirement for production equipment is low, and the water-based organic silicon coating is suitable for large-scale industrialized production.