30results about How to "Achieving aging resistance" patented technology

The invention discloses a sizing material for a rubber shoe sole and a preparation method thereof. The sizing material comprises the following raw materials for preparing active ingredients in parts by weight: 100 parts of rubber, 1.2-2.5 parts of sulfur, 2-5 parts of zinc oxide, 1-2.5 parts of stearic acid, 1-3 parts of a medium-speed accelerant, 0.3 part of a high-speed accelerant, 1.5-3 parts of an anti-ageing agent, 35-55 parts of carbon black, 5-10 parts of softening oil, 25-35 parts of rubber powder and 1-1.5 parts of coupling agent. The preparation method comprises the following steps of: pretreating the rubber powder; plastifying rubber; compounding; milling, and the like. The rubber shoe sole produced by using a rubber powder formula and the preparation method thereof has the advantages of reduction in the tensile strength change rate by 3-5 percent, reduction in the tensile yield change rate by 5-8 percent, the same wear resistance and bending resistance as those of a rubber shoe sole produced without using rubber powder in the same type of products, smooth appearance handfeel, soft brightness and increase in grade. The sizing material is suitable for preparing rubber shoe soles of dress shoes and outdoor shoes.

The invention relates to the technical field of solar backplanes, in particular to a fluorocarbon coating solution and a solar backplane using the fluorocarbon coating. In order to improve the ultraviolet aging resistance and wet-heat aging resistance of an existing solar backplane, the fluorocarbon coating solution and the solar backplane using the fluorocarbon coating solution are provided. Theprovided fluorocarbon coating solution is prepared from, by weight, 40%-70% of fluorocarbon resin, 20%-50% of titanium dioxide, 1%-5% of matting powder, 0.2%-0.8% of polyacrylate and 3%-10% of isocyanate. The solid content is controlled to be 40-60%, all the components are limited to be within the above content ranges, the fluorocarbon resin can react at high temperature preliminarily and then iscured at 50 DEG C for 48 hours, a high-density fluorocarbon coating is formed on the surface of PET, UV light can be blocked, and it is found that there are no obvious performance degradation throughvarious weatherability tests.

The invention discloses a multifunctional active composite seal coat pavement. The multifunctional active composite seal coat pavement comprises an asphalt pavement, a self-repairing sealing layer anda surface layer which are sequentially distributed from bottom to top, wherein the surface layer is a fog sealing layer or an anti-skid noise reduction micro-surfacing layer; the self-repairing sealing layer comprises an active emulsified asphalt layer, a plurality of gravel layers and an emulsified asphalt bonding layer which are sequentially distributed from bottom to top, a modified emulsifiedasphalt layer or a modified asphalt layer is arranged between every two adjacent gravel layers, and the pavement has the advantages of being high in skid resistance, good in abrasion resistance, lowin cost and short in service life and is simple in construction process.

The present invention relates to the technical field of solar back sheets, particularly to a fluorocarbon layer coating liquid and a solar back sheet using the coating liquid. In order to solve the problem that the existing fluorocarbon layer is easily scratched, the present invention provides a scratch-resistant fluorocarbon layer coating liquid and a solar back sheet using the coating liquid, wherein the fluorocarbon layer coating liquid comprises, by weight, 40-60% of a fluorocarbon resin, 20-30% of titanium dioxide, 1-5% of matting powder, 10-20% of a modified thermoplastic polyurethane resin, 0.2-0.8% of polyacrylate, and 5-10% of isocyanate. According to the present invention, the surface of the fluorocarbon layer formed by the fluorocarbon layer coating liquid has characteristics ofscratch resistance and good weather resistance; and the inner surface of the solar back sheet using the coating liquid is excellent in scratch resistance, and the weather resistance of the solar backsheet is good.

The invention relates to the technical field of polyurethane thermal insulation materials, and particularly relates to a high-temperature-resistant creep-resistant pipeline thermal insulation material and a preparation method thereof. The high-temperature-resistant creep-resistant pipeline thermal insulation material is formed by mixing a component A and a component B according to the mass ratio of 1:(1.4-1.6), and the component A is composed of sucrose polyether polyol A, epoxy resin modified polyether polyol B, polyester polyol, a cross-linking agent, deionized water, a foam stabilizer and a catalyst; and the modified isocyanate is prepared by modifying a mixture of polymethylene polyphenyl polyisocyanate and diphenylmethane diisocyanate by adopting one or two of hydroxyl-terminated fluorine-containing polyester polysiloxane and hydroxyl-terminated polysiloxane. The high-temperature-resistant creep-resistant pipeline thermal insulation material disclosed by the invention not only has excellent high-temperature dimensional stability, relatively low heat conductivity coefficient and good adhesive property, but also has good high-temperature resistance and creep resistance, and can meet the requirement of long-term high-temperature transportation. The invention also provides a preparation method of the high-temperature-resistant creep-resistant pipeline thermal insulation material.

The invention relates to the field of building materials, and provides a plate joint treatment method for autoclaved aerated concrete external wall plates. The plate joint treatment method comprises the following steps that S1, plate joint shoving materials are brushed at the first end of a first spliced face of one of the autoclaved aerated concrete external wall plates and/or the first end of asecond spliced face of the other autoclaved aerated concrete external wall plate; S2, the first spliced face and the second spliced face are moved oppositely until the space between the first end of the first spliced face and the first end of the second spliced face is filled with the plate joint shoving materials, and a gap is formed between the second end of the first spliced face and the secondend of the second spliced face; S3, a plate joint between the outer walls of the two autoclaved aerated concrete external wall plates is cleared; and S4, the plate joint between the outer walls of the two autoclaved aerated concrete external wall plates is filled with a sealing adhesive. According to the plate joint treatment method, the using amount of the sealing adhesive can be reduced, and the problem that the sealing adhesive is prone to uncompacted filling is avoided; and in addition, the gap between the second end of the first spliced face and the second end of the second spliced facecan further be utilized to further block transferring of moisture.

The invention discloses anti-aging asphalt for a muck truck road and a preparation method of the anti-aging asphalt, and relates to the technical field of asphalt. The foamed asphalt is firstly subjected to microwave heating treatment, and internal fine lines are expanded and communicated by utilizing magnetic nanoparticles to form a stable three-dimensional structure, so that the mechanical property of the asphalt is improved; after oxidation treatment, the foamed asphalt is modified by utilizing 1, 2, 3-tribromopropane, polyether glycol, dimethyl diphenyl diisocyanate and furanamide, so that the rut resistance of the asphalt is improved; then, the titanium dioxide nanosheets, 3-(4-bromophenyl)-2-propylene-1-alcohol, 2-(tert-butyl)-4-chloro-5-nitrophenol, 2-amino-4-chlorodiphenylamine, succinic anhydride, 2-chlorobenzoic acid vinyl ester and N-phenylbutylene diimide are used for preparing a self-made filler, and the anti-aging effect of the asphalt is improved. The asphalt prepared by the invention has anti-rutting and anti-aging effects.

The invention relates to an anti-skid coating for a heavy-load track and a preparation method thereof, and the composite anti-skid coating for the heavy-load track comprises an anti-corrosion primer, a first anti-skid finishing coat and a second anti-skid finishing coat, wherein the anti-corrosion primer is epoxy anti-corrosion primer; the first anti-skid finish paint is epoxy anti-skid finish paint; and the second anti-skid finish paint comprises a polyaspartic acid ester finish paint and anti-skid particles. The selected resin has the characteristics of high solid content, low viscosity, high reaction speed and the like, and the special composition of the first anti-skid finishing coat and the second anti-skid finishing coat is adopted, so that the excellent adhesive force with the anti-corrosion primer is ensured, and the properties of quick drying, aging resistance, wear resistance and the like of the coating are realized.

The invention relates to the technical field of solar back plates, in particular to fluorocarbon coating liquid, a fluorocarbon coating and a solar back plate. In order to solve the problem of poor heat resistance of a transparent fluorocarbon coating, the invention provides the fluorocarbon coating liquid, the fluorocarbon coating and the solar backboard. The fluorocarbon coating liquid comprises the following components in percentage by weight: 50%-80% of fluorocarbon resin, 3%-10% of an inorganic nano cerium dioxide UV absorbent, 1%-5% of extinction powder, 10%-20% of an adhesion promoter, 0.3%-0.8% of an additive and 5%-20% of isocyanate. A coating formed by the fluorocarbon coating liquid is good in heat resistance at the hot spot temperature (such as 170 DEG C), small molecule precipitation and macromolecule degradation are not prone to occurring, and yellowing of the coating cannot occur in the high-temperature hot spot testing process after heat sealing of an assembly.

The invention relates to a structure of a hard sealing gasket and belongs to the technical field of sealing of high pressure gas in operation. The sealing gasket is composed of a rubber layer and a metal layer. A combination structure of the rubber layer and the metal layer can be suitable for extremely wide temperature ranges according to the hard sealing state of a metal. On the other hand, theapplication temperature range of the rubber layer is within 50 DEG C below zero to 200 DEG C by means of volume incompressibility of rubber and excellent elasticity recovery performance of the rubberin a very wide temperature range, so that the structure has the effects of working normally and being oil-resistant and ageing-resistant.

The invention belongs to the technical field of floor heating pipes, and particularly relates to a universal heat dissipation floor heating pipe. The universal heat dissipation floor heating pipe is provided with a pipe body, an inner heat-resistant layer, an insulating layer, a heat preservation layer, a flame-retardant plate, a cavity, a connecting valve, a heat conduction pipe, a heat transferpipe, a heating pipe, a controller, a mounting ring, a fixing plate, a mounting hole, a pipe holder, a supporting rod, a connecting hole, a fixing screw, a threaded hole and a pre-buried plate, wherein the pipe body is of a stainless steel hollow structure, the inner wall of the cavity is provided with internal hand threads, the flowing direction and the flowing speed of hot water are changed by the internal hand thread wall, so that the heat dissipation effect is further enhanced, scale does not generate on the inner wall of the floor heating pipe body, procedures for removing water scale every year are omitted, the use cost is reduced, blockage is not prone to happen, an outer corrugated wall is used for increasing the contact area between the exterior of the floor heating pipe body andair, the heat dissipation effect is enhanced, the outer corrugated wall can be used for effectively copying with thermal expansion so as to enhance stability performance of the floor heating pipe body, and the universal heat dissipation floor heating pipe is more humanized and suitable for popularization and application.

The invention provides a UV-resistant black fluorocarbon coating liquid, which comprises the following components in percentage by weight: 60 to 80 percent of fluorocarbon resin, 3 to 10 percent of carbon black with the particle size of 5 to 15 nm, 2 to 5 percent of matting powder, 0.2 to 0.8 percent of polyacrylate, 10 to 30 percent of thermoplastic polyurethane resin and 3 to 10 percent of isocyanate, and the solid content is controlled to be 50 to 65 percent. All the components are limited in the content range, the fluorocarbon resin can be subjected to primary reaction under the high-temperature condition and then cured at the temperature of 50 DEG C for 48 hours, and a high-density black coating is formed on the surface of a white fluorocarbon coating. When the coating is laminated with EVA, excellent packaging strength can be shown, high packaging strength is still kept after a damp-heat aging test, and appearance change does not occur after QUV treatment.