30results about How to "Scratch resistance" patented technology

A recording apparatus that forms an image on a recording medium includes a U-turn conveying path and a redirecting conveying path. The U-turn conveying path reverses the front and back of the recording medium and conveys the recording medium to a conveying roller. The redirecting conveying path reverses a conveying direction of the recording medium, fed from the front side of a main body of the apparatus, at an upstream side of the conveying roller in the conveying direction, and conveys the recording medium to the conveying roller. Then, a first recording medium is conveyed along the U-turn conveying path, and a second recording medium is conveyed along the redirecting conveying path.

The invention provides a UV photo-curing elastic self-repairing brightening paint composition. The paint composition comprises the following ingredients in parts by weight: 10 to 70 parts of elastic photo-curing resin, 10 to 50 parts of photopolymerization monomer, 2 to 5 parts of photoinitiator and 0.05 to 1 part of additive. The UV photo-curing elastic self-repairing brightening paint composition can be smeared on an optical PET plastic base material; after being cured by ultraviolet light, a coating is excellent in elasticity and also good in attachment force, wear resistance and scratch resistance.

The invention provides a light guide plate as a liquid crystal display backlight and a preparation method thereof, comprising PMMA, PC, light diffusing agent, light stabilizer, heat stabilizer, silicone masterbatch, fused silica sand, the weight of each component The number of parts is: PMMA35‑60, PC25‑40, light diffusing agent 1‑8, light stabilizer 0.3‑3, heat stabilizer 0.1‑1, silicone masterbatch 2‑5, fused silica sand 10‑15. The above materials are melted and then injected into a mold to make a light guide plate. The light guide plate can exhibit higher hardness at normal temperature, and can effectively prevent scratches on the surface of the light guide plate.

An aluminum alloy is disclosed that is suitable for casting and machining cylinder blocks for engines, especially gasoline fuel engines for automotive vehicles. The casting has the strength and wear resistance to piston / seal scuffing for such engines. The alloy comprises, by weight, 9.5 to 12.5% silicon, 0.1 to 1.5% iron, 1.5 to 4.5% copper, 0.2 to 3% manganese, 0.1 to 0.6% magnesium, 2.0% max zinc, 0 to 1.5% nickel, 0.25% maximum titanium, up to 0.05% strontium and the balance aluminum, where the weight ratio of manganese to iron is 1.2 to 1.75 or higher when the iron content is equal to or greater than 0.4% and the weight ratio of manganese to iron is at least 0.6 to 1.2 when the iron content is less than 0.4% of the alloy.

[Problem] To provide: a folding-type display which has excellent mass productivity and in which repeated folding does not result in disturbance of an image displayed on the folded part; and a portableterminal device on which this folding-type display is mounted. [Solution] This folding-type display is obtained by disposing a hard coat film on at least a part of the surface, wherein the hard coatfilm uses a polyester film having an intrinsic viscosity of 0.65-1.0 d1 / g as a base material film. A polyimide-based resin cured layer having a thickness of 0.5-3.0 microns and a hard coat layer are provided, in that order, on at least the surface side of the folding-type display in the base material film.

The invention relates to a high-scrape-resistant self-repairing brightening coating composition which includes following components, by weight, 10-70 parts of photo-curable resin, 10-50 parts of a photo-polymerization monomer, 2-5 parts of a photo initiator and 0.05-1 part of an additive. The high-scrape-resistant self-repairing brightening coating composition can be used for coating an optical-grade PET plastic base material, and is excellent in scrape-resistant performance after UV curing. Meanwhile, the coating composition is excellent in rebounding performance and is excellent in adhesion on the base material.

The invention provides a transparent conductive film and a capacitive touch screen comprising the same. The transparent conductive film comprises a first hardened layer, a transparent substrate layer, a second hardened layer and an amorphous ITO (indium tin oxide) layer, wherein the transparent substrate layer is arranged on the surface of the first hardened layer; the second hardened layer is arranged on the surface, far from the first hardened layer, of the transparent substrate layer, and the thickness of the first hardened layer is larger than that of the second hardened layer by 0.5-3 mu m; the amorphous ITO layer is arranged on the surface, far from the transparent substrate layer, of the second hardened layer. The transparent conductive film has the characteristics of low solid lines, low impedance, high-temperature resistance, scratch resistance, low cost, simple production process and the like.

The invention relates to a high refractive index self-repairing brightening coating composition. The coating composition comprises the following components and parts by weight: 15-55 parts of photocurable resin, 10-70 parts of photopolymerizable monomer, 2-4 parts of photoinitiator, 0.05-1 part of auxiliary agent; It is a sulfur-containing high refractive index difunctional acrylate unsaturated polymer with both soft and hard segment structures. The high refractive index self-healing and brightening coating composition of the present invention can be coated on the optical-grade PET plastic substrate; after ultraviolet light curing, the coating has a high refractive index, excellent elasticity, and has excellent adhesion, Wear and scratch resistance.

The present invention relates to: a method for manufacturing a multilayer insulated electric wire insulated by a biopolyester resin; and a multilayer insulated electric wire insulated by a biopolyester resin, manufactured according thereto, the method comprising the steps of: separating glycerol from biodiesel by-products; separating bio 1,3-propanediol by fermenting the glycerol; preparing a biopolyester resin by means of a transesterification reaction step, using the bio 1,3-propanediol, and a polycondensation reaction step; preparing biopolyester pellets by obtaining a mixture by mixing thebiopolyester resin with an antioxidant and a pigment, and then melt mixing the mixture; and forming two or more layers of insulation layers by extruding the biopolyester pellets on the outer circumference of a conductor, and then forming an outermost insulation layer by extruding polymer resin pellets on the insulation layers. According to the present invention, a multilayer insulated electric wire satisfying environmental protection requirements and simultaneously having the necessary characteristics such as heat resistance and impact resistance, flexibility before and after heating, and scratch resistance, which are required for a use as battery and electronic equipment wiring and coiling, can be readily manufactured.

The invention relates to a self-repairing brightening paint composition. The coating composition includes the following components and parts by weight: 20-60 parts of photocurable resin, 10-70 parts of photopolymerizable monomer, 2-5 parts of photoinitiator, and 0.05-1 part of auxiliary agent; It is a sulfur-containing high refractive index difunctional acrylate unsaturated polymer with a bisphenol S structure and a soft and hard segment structure. The self-healing and brightening coating composition with high refractive index of the present invention can be coated on optical-grade PET plastic substrates; after UV curing, the coating has a high refractive index, excellent elasticity, and excellent adhesion , Wear resistance and scratch resistance.

The invention provides a high-hardness scratch-resistant aluminum curtain wall, belongs to the technical field of building curtain walls, and aims to solve the problems that an existing aluminum curtain wall is easy to bend and deform and the surface of the existing aluminum curtain wall is easy to scratch. The curtain wall comprises a keel mechanism, the keel mechanism comprises a plurality of first keels and a plurality of second keels, a plurality of connecting mechanisms are arranged on the rear sides of the first keels and the second keels, fixing mechanisms are arranged between the first keels and the second keels at the corresponding positions, each fixing mechanism comprises a plurality of fixing frames, and splicing grooves are formed in one sides of the fixing frames. Splicing blocks are fixed to the other sides of the fixing frames, a placement groove and two fixing grooves are formed in the front side of each fixing frame, an anti-scratch curtain wall plate is placed in each placement groove, fixing plates are arranged on the two fixing grooves, U-shaped plates are fixed to the rear sides of the fixing frames, and bearing plates are arranged at the upper ends and the lower ends of the fixing frames. The fixing frames are connected with the fixing frames of the fixing mechanisms at the upper and lower ends through bearing plates. Bending deformation and surface scratches of the aluminum curtain wall can be avoided.

The invention relates to the technical field of repairing damaged dental enamel by metal oxide coating, in particular to controllable preparation of a metal oxide repair layer closely connected with damaged dental enamel. Metal salt and a buffer solution which are easy to obtain are used as raw materials, growth of the metal oxide on the surface of the damaged dental enamel is promoted, the metaloxide repair layer closely connected with the damaged dental enamel is prepared, and repair of the damaged dental enamel is realized. The specific method comprises the steps as follows: (1) preparingthe buffer solution with target pH at the room temperature and adding a proper amount of metal salt; (2) then, adding the damaged dental enamel to the solution, and performing stirring for 3-5 h to coat the surface of the damaged dental enamel with a metal oxide precursor; and (3) placing the precursor in a reaction kettle, adding ethanol, conducting a reaction at 60-80 DEG C for 8-12 h to finallyobtain the uniform and compact metal oxide repair layer to realize repair of the damaged dental enamel.

The invention provides a UV photo-curing elastic self-repairing brightening paint composition. The paint composition comprises the following ingredients in parts by weight: 10 to 70 parts of elastic photo-curing resin, 10 to 50 parts of photopolymerization monomer, 2 to 5 parts of photoinitiator and 0.05 to 1 part of additive. The UV photo-curing elastic self-repairing brightening paint composition can be smeared on an optical PET plastic base material; after being cured by ultraviolet light, a coating is excellent in elasticity and also good in attachment force, wear resistance and scratch resistance.

The invention relates to a preparation method of a dense metal oxide thin layer coated on the surface of tooth enamel, in particular to a controllable preparation of a thin metal oxide layer closely connected with damaged tooth enamel. Using readily available metal salts and buffer solutions as raw materials, the growth of metal oxides on the surface of damaged enamel is promoted, and a thin layer of metal oxides that is closely connected with damaged enamel is prepared to realize the healing of damaged enamel. repair. The specific method is (1) prepare a buffer solution with a target pH at room temperature, and add an appropriate amount of metal salt; (2) then add the damaged enamel to the above solution, and stir for 3-5 hours to realize the metal oxide precursor in the damaged enamel. Surface coating; (3) Put the precursor into a reaction kettle, add ethanol, and react at 60-80°C for 8-12 hours, and finally obtain a uniform and dense metal oxide thin layer coated on the surface of the enamel.

The invention relates to an ultraviolet light curing elastic self-healing coating composition. The composition comprises the following components in parts by weight: 10-70 parts of elastic light-cured resins, 10-70 parts of light curing monomers, 1-5 parts of light initiators and 0.05-1 part of auxiliary, wherein the elastic light-cured resins are tri-functional acrylate unsaturated polymers having a soft-hard segment structure and high elasticity performance. The ultraviolet light curing elastic self-healing coating composition can be coated on a PET substrate, and the coating subjected to ultraviolet curing is high in elastic self-healing performance, extremely high in adhesion force, abrasion resistance and scratching resistance.

The present invention relates to: a method for manufacturing a multilayer insulated electric wire insulated by a biopolyester resin; and a multilayer insulated electric wire insulated by a biopolyester resin, manufactured according thereto, the method comprising the steps of: separating glycerol from biodiesel by-products; separating bio 1,3-propanediol by fermenting the glycerol; preparing a biopolyester resin by means of a transesterification reaction step, using the bio 1,3-propanediol, and a polycondensation reaction step; preparing biopolyester pellets by obtaining a mixture by mixing the biopolyester resin with an antioxidant and a pigment, and then melt mixing the mixture; and forming two or more layers of insulation layers by extruding the biopolyester pellets on the outer circumference of a conductor, and then forming an outermost insulation layer by extruding polymer resin pellets on the insulation layers. According to the present invention, a multilayer insulated electric wire satisfying environmental protection requirements and simultaneously having the necessary characteristics such as heat resistance and impact resistance, flexibility before and after heating, and scratch resistance, which are required for a use as battery and electronic equipment wiring and coiling, can be readily manufactured.

The invention discloses a transparent PET optical hardened film based on radiation curing and a preparation method thereof. The PET optical hardened film is composed of a PET base film and a high-hardness transparent coating coated on the base film; the high-hardness transparent The coating comprises the following components by weight: 0-60% of photocurable organosilazane resin, 10-70% of UV-curable acrylic resin, 5-60% of nano-silica, 5-50% of flakes Nano ceria, 0-20% active diluent, 1-10% photoinitiator, 0-5% auxiliary agent; wherein, the auxiliary agent includes: any one or two of leveling agent, dispersant and defoamer more than one species. The PET optical hardening film of the present invention has the characteristics of high light transmittance, low haze, high hardness, scratch resistance, and low longitudinal shrinkage.