75results about How to "Strong bonding between layers" patented technology

The invention relates to an optical conversion luminous film and a preparation method thereof. The optical conversion luminous film is formed by a diffusion film and a mixed paint layer on the diffusion film; the optical conversion luminous film has the thickness of 30-200mum, wherein, the thickness of the diffusion film is 20-70mum; the mixed paint layer is made of 10.000-30.000% of yellow luminous fluorescent material, 0.001-2.000% of red luminous fluorescent material, 60.000-89.000% of polymer resin, 1.000-5.000% of bi-amino silane, 0.000-20.000% of diluting agent and 0.000-5.000% of accessory ingredient. By combining the yellow luminous fluorescent material and the red luminous fluorescent material, the invention can realize the aim of regulating chromaticity coordinate, color temperature and color rendering index, thus preparing the optical conversion luminous film which is made of the fluorescent materials and has the advantages of high color rendering index of the photodiffusion effect, good property of uniform light, anti-dazzle, high light conversion efficiency, low cost, excellent aging characteristic and simple production technique.

The invention provides an environmentally-friendly automotive trim composite material and a preparation method thereof. The automotive trim composite material comprises a surface layer, a foaming layer, a hot melt glue layer and a skeleton structure layer, wherein the surface layer is a TPU (Thermoplastic Polyurethanes) film layer, a TPO (Thermoplastic Polyolefin) film layer, a PU (Poly Urethane) film layer, a PP (Propene Polymer) film layer or a genuine leather layer; the foaming layer is a PP foaming layer, a PPF foaming layer, a PU foaming layer or a PE (Poly Ethylene) foaming layer; the hot melt glue layer is a TPU hot melt glue layer, an EVA (Ethylene-vinyl Acetate Copolymer) hot melt glue layer, a PE hot melt glue layer, a PA (Poly A) hot melt glue layer or other hot melt glue layers; the skeleton structure layer is made of a glass fiber modified PP composite material, a carbon fiber modified PP composite material, or an ABS (Acrylonitrile Butadiene Styrene) modified PP composite material. According to the environmentally-friendly automotive trim composite material and the preparation method thereof provided by the invention, the surface layer with the foaming layer is glued with a skeleton structure through an environmentally-friendly hot melt glue, so that the gluing degree is good, the rejection rate is low, the product forming quality is effectively ensured, and the manpower is saved; the product is wear-resisting, high in tearing strength and dimensional stability, not easy to strip, attractive in appearance, and environmentally-friendly in production process without pollution; the product can be recycled.

The invention relates to an automobile drying primer surfacer. Amino resin is taken as a crosslinking agent to have crosslinking reaction with resin with hydroxyl, such as alkyd resin, polyester resin, epoxy resin, acrylic resin, etc., and the primer surfacer which has the advantages of high hardness, good adhesion, firm interlayer bonding, good excessive roasting, good decorativeness, wear resistance, gloss retention, good color retention and low cost is processed and produced through re-mixing the alkyd resin, the epoxy resin and the amino resin according to the mechanisms of condensation, polymerization, curing and film formation; the automobile drying primer surfacer is characterized in that 15 portions to 25 portions of amino resin, 19 portions to 21 portions of polyester resin, 2.7 portions to 2.9 portions of epoxy resin, 25 portions to 35 portions of alkyd resin, 16 portions of 26 portions of pigment and filler and 2 potions to 7 portions of diluent are re-mixed; and then a promoter in a certain proportion is added in; finally the automobile drying primer surfacer is obtained.

The invention provides a plastic non-chrome roughening treatment method and a water-saving electroplating method thereof. A plastic workpiece is put into a non-chrome roughening solution to be treated; the surface of the treated plastic workpiece is coated with a binding force accelerant in a dipping manner; finally, the plastic workpiece is subject to plasma activation treatment. According to thetechnical scheme, the better interlayer binding force can be achieved between obtained plastic and a coating, the traditional electroplating process can be completely replaced, in the whole process that the surface of the plastic workpiece is electroplated with a chromium film, toxic chemicals of hexavalent chromium or trivalent chromium and the like are not used, the discharge amount of waste water can be 50% of or lower than the discharge amount of traditional electroplated water, the process is stable, commercial mass production is achieved, and the green surface treatment process with thewide prospect is provided.

The present invention relates to the field of prepreg fiber cloths, and discloses a prepreg fiber cloth and a preparation method thereof. According to the present invention, at least partial surface of the prepreg fiber cloth is wrapped with a resin adhesion layer, and the prepreg fiber cloth is characterized in that magnetic chopped fibers are arranged between the resin adhesion layer and the fiber cloth and the included angle between the magnetic chopped fibers and the fiber cloth is more than 0 DEG; and the prepreg fiber cloth has excellent interlayer bonding force when the prepreg fiber cloth is subjected to hot pressing into the composite plate.

The invention discloses a browning method for improving the interlayer bonding force of a printed circuit board and belongs to the technical field of circuit boards. The browning method comprises thefollowing steps S1, of cleaning, putting a copper foil in a cleaning solution I for soaking for 3-5 min, adding a cleaning solution II, continuing soaking for 3-5 min, then sequentially putting the copper foil in hydrogen peroxide and ethanol for soaking for 2-3 min, and then drying the copper foil with nitrogen; S2, presoaking, putting the cleaned copper foil into a presoaking solution, and carrying out ultrasonic oscillation for 3-5 minutes; S3, browning, namely browning the presoaked copper foil in a browning tank in which browning liquid is stored; and S4, washing, putting the browned copper foil into deionized water, washing with the water, and drying with nitrogen. The method is advantaged in that after browning, a sample plate shows good anti-stripping performance, and the strippingstrength is as high as 0.95 Kg/cm; thermal performance test is carried out, respectively six times of tin immersion are carried out, 100 times of cold and hot impact circulation and six times of reflow soldering test on the laminated sample are carried out, that the test sample has no bubbling, layering or plate explosion phenomenon is observed, and the interlayer bonding force is strong.

The invention relates to a surface enhanced treatment process for a metal bearing of a numerically-controlled machine tool. The process comprises the following steps: surface cleaning and activating:putting the metal bearing in a phosphoric acid buffer solution to be soaked for 20-30 min, then adding a cleaning activator thereinto, and carrying out ultrasonic treatment for 5-10 min; nitrocarburizing: putting the metal bearing in a nitrifying furnace, introducing nitrogen, and treating the metal bearing for 2.2-2.4 h at 565+/-2 DEG C; and compound metal paint spraying: coating compound metal powder to the outer layer of the metal bearing by means of plasma beam fusion covering. By means of multi-time enhanced treatment on the surface layer of the metal bearing, the process has an excellentmechanical property, and the toughness and the wear resistance are enhanced remarkably. By selecting a proper raw material proportion, the bonding forces between the coatings and a matrix and betweenthe coatings are great, the wear delamination rate is low, and the service life is prolonged by more than two folds.

The invention relates to the technical field of steel-titanium composite plate preparation, in particular to a steel-titanium composite plate, wherein at least one of the upper surface and lower surface of a steel plate base layer is compounded with a titanium plate layer. The invention also provides a preparation method of the steel-titanium composite plate, which comprises the following steps: acarbon steel coil strip and a titanium plate are respectively placed at a temperature of 200-200 DEG C for heating and are respectively placed at a temperature of 500-650 DEG C for heating again; theheated carbon steel coil and titanium plate are placed on a cold rolling differential composite rolling mill for rolling and composite forming, a steel-titanium composite plate blank is placed in a bell furnace again, and a diffusion heat treatment sintering process is used, the sintering temperature is controlled at 700-700 DEG C and the sintering temperature is controlled at 20-48 hours. The method has the advantages of low manufacturing cost, good product surface quality, strong interlayer binding force, high thickness control precision and no environmental pollution.

The invention discloses a stain-resistant high-temperature liquid asphalt coating and a preparation method thereof, belonging to the technical field of stain-resistant coatings. The preparation methodcomprises the following steps: firstly, mixing a solvent, polyphenylene sulfide, a structural blending agent and an additive in proportion to prepare slurry; mixing the slurry with a hydrophobic modifier to prepare a coating; and coating the surface of a pre-treated substrate with the coating, and heating and preserving the temperature for a period of time and cooling to room temperature to obtain the stain-resistant high-temperature liquid asphalt coating. The stain-resistant high-temperature liquid asphalt coating provided by the invention meets the using demand in a high-temperature liquidasphalt environment; the coating and the substrate material form a good interlaminar bonding force, a hydrophobic surface is formed on the surface of the coating, the stain-resistant performance of the compound coating is improved, and the stain area of the high-temperature liquid asphalt is smaller than 10%.

The invention discloses an aluminum silicon carbide heat-sink base plate and a manufacturing method thereof. The manufacturing method comprises the following steps of: preparing slurry by low-temperature glass powder and mixed printing ink; sintering the slurry on an aluminum silicon carbide substrate; and greatly reducing a sintering temperature of an insulating layer to 450-550 DEG C. The manufactured aluminum silicon carbide heat-sink base plate has good interlayer binding force and insulating performance and is low in thermal expansion coefficient; and a thick film insulating layer is good in heat resistance.

The invention discloses a rigid-flex printed circuit board. The flexible printed circuit board comprises a rigid-flexible combined substrate located in the middle and a plurality of metal layers on the upper side and the lower side. The rigid-flexible combined substrate comprises a rigid substrate and a flexible substrate. The flexible substrate is embedded in a small unit window formed in the rigid substrate; a circuit pattern is formed on the surface of the rigid-flexible combined substrate; cover films are adhered to the upper and lower sides of the flexible substrate; a protective film isattached to the outer side of the covering film; wherein the metal layers are pressed on the outer side of the rigid-flexible combined substrate, the metal layers are combined through prepregs, the metal layers and the rigid-flexible combined substrate are combined through prepregs, electrical connection holes are formed between the metal layers, between the metal layers and the rigid substrate and between the metal layers and the flexible substrate, and windows are formed in the upper side and the lower side of the flexible substrate and enable a covering film of the flexible substrate to beexposed. The invention further provides a manufacturing method of the rigid-flex printed circuit board. According to the invention, the processing difficulty is low, the interlayer bonding force is strong, the flexible substrate is embedded into the rigid substrate, the connectivity is good, and the cost of the flexible substrate is saved.

The invention discloses a flame-retardant low-dielectric-constant bonding sheet and a preparation method thereof. The bonding sheet comprises a PTFE-based core layer in the middle and hydrocarbon resin surface layers on the upper surface and the lower surface; the PTFE-based core layer is reinforced by adopting two kinds of ceramic powder with different particle sizes, and the core layer film is obtained through an extrusion stretching forming process, so that the density and the elongation at break of the core layer can be obviously improved, and support is provided for the upper surface layer and the lower surface layer; the film is formed on the surface layer by adopting a multi-time blade coating process, so that defects are reduced, density is improved, and flame retardance is improved. The bonding sheet abandons the traditional glass fiber cloth reinforcing material, has the advantages of isotropy, high density, flame retardance, adjustable dielectric constant, lower loss, good bonding strength and mechanical property, can meet the interlayer bonding of a multi-layer circuit board, and is stable and reliable in signal transmission. The bonding sheet is wide in raw material source, simple in operation process, environment-friendly, easy for large-scale batch production, wide in application field and good in market prospect.

The invention provides TEMPO oxidized nano-cellulose-based composite hydrogel and a preparation method thereof. The method comprises the following steps: 1, dissolving chitosan, polyvinyl alcohol and TEMPO oxidized nano-cellulose in an acetic acid solution, wherein the mass ratio of chitosan to polyvinyl alcohol to TEMPO oxidized nano-cellulose is (0.03-0.35): (0.14-0.8): (0.01-0.405); performing stirring to obtain a mixed system, freezing the mixed system, and obtaining a gel-like mixture; 2, pouring a polyvinyl alcohol solution on the surface of the gelatinous mixture, freezing the obtained mixture at the temperature of 30 DEG C below zero to 10 DEG C below zero, and then performing unfreezing to obtain the TEMPO oxidized nanocellulose-based composite hydrogel, so that the mechanical property and functionality of the hydrogel are improved by utilizing a double-crosslinking network and a double-layer asymmetric structure.

The invention discloses a layered titanium-aluminum-steel composite strip coil material and a preparation method thereof. According to the layered titanium-aluminum-steel composite strip coil material, an aluminum strip coil serves as a base material, a pure titanium strip coil is compounded on the upper surface of the aluminum strip coil, and a stainless steel strip coil is compounded on the lower surface of the aluminum strip coil; and the thickness ratio of the aluminum strip coil to the pure titanium strip coil to the stainless steel strip coil is 8: (1.5-3): (2-3). The production processflow comprises the steps of uncoiling, carrying out surface treatment, heating, rolling, coiling, annealing and obtaining a finished product coiled material, and the production processes in the process flow are continuous production line type production except annealing. The composite coiled material prepared by the method has the characteristics of being corrosion-resistant, wear-resistant, freeof toxicity, bacteria-resistant, and good in magnetic conductivity and thermal conductivity; and the interlayer binding force of the composite strip coil material is greatly improved.

The invention discloses a modified epoxy coating as well as a preparation method and application thereof, wherein the modified epoxy coating is prepared from a modified base material, an antirust pigment, a diluent and an auxiliary agent, wherein the modified base material is prepared from 15-35 parts of modified epoxy resin and 5-20 parts of a modified amine curing agent; the antirust pigment isone or more of micaceous iron ash, zinc phosphate, aluminum triphosphate and ferrophosphorus powder, and the quantity of the antirust pigment is 15-40 parts; the use amount of the diluent is 3-10 parts; the auxiliary agent is one or more of a dispersing agent, an anti-settling agent and a defoaming agent, and the use amount of the auxiliary agent is 3-15 parts. The modified epoxy paint is single-component intermediate paint, is convenient to use, can be used for carrying out anticorrosive treatment on special-shaped workpieces in a dip-coating mode, can also be used in a spraying mode, can coexist all the components at the same time at the normal temperature, and is long in quality guarantee period, and the corrosion resistance of a steel structure is improved through matched use of the intermediate paint and priming paint.

The invention relates to a composite coating low-temperature temperature measurement optical fiber and a preparation method thereof. The optical fiber comprises a bare optical fiber, a polymer coatingand a metal coating. The preparation method of the composite coating temperature measurement optical fiber comprises the following steps: 1, coating acrylic resin on the surface of a bare optical fiber by adopting a dip-coating-ultraviolet curing process, and forming a polymer coating on the surface of the bare optical fiber through multiple times of coating; 2, adopting a cold spraying machine,and spraying metal powder to the surface of the polymer coating after being preheated, wherein the spraying gas and the powder feeding gas are both N2; 3, performing rapid heat treatment on the optical fiber sprayed with the metal coating through a high-temperature furnace, and forming a compact metal coating on the surface of the polymer coating; 4, standing the composite coating temperature measurement optical fiber obtained in the step 3 for 24 hours to obtain a finished product. According to the invention, the temperature sensitivity of the temperature measurement optical fiber at low temperature is improved, and the problem that the polymer is easily decomposed at high temperature due to direct contact between molten metal and the polymer in the traditional melt coating process is effectively avoided.

The invention discloses a decomposition-resistant PS conductive masterbatch. The decomposition-resistant PS conductive masterbatch includes the following raw materials by weight percentage: 5-10% of superconducting carbon black, 30-60% of high-impact polystyrene, toughened 18 to 30% of antioxidants, 3 to 9% of reinforcing agents, 0.2 to 0.8% of coupling agents, 0.2 to 1.2% of antioxidants, 0.2 to 1.2% of EBS, and 3 to 8% of EMA. In the present invention, superconducting carbon black is used as the conductive carrier, high impact polystyrene PS is used as the base material, and compound toughening agent, reinforcing agent, coupling agent, antioxidant, EBS and EMA are respectively used as lubricants. , dispersant and compatibilizer are compounded according to the appropriate ratio, and the obtained decomposition-resistant PS conductive masterbatch has excellent high temperature resistance and physical and mechanical properties; the decomposition-resistant PS conductive masterbatch can not only be used in polycarbonate and other needs The antistatic materials produced by high temperature co-extrusion can also be used in corresponding conductive and antistatic packaging materials such as electronics, electrical appliances, communications, aerospace, etc., to achieve safe and effective ESD protection for packaged electronic products.