40results about How to "Capable of self-healing" patented technology

The invention relates to an ecological concrete embankment and a construction method thereof.According to the ecological concrete embankment, due to the fact that ecological green belts are arranged on the top of the embankment, ecological tanks are formed in the upstream face, flood drainage reverse valve tubes are pre-buried in an embankment body which communicates a river channel ecosystem with a river bank land ecosystem, the embankment, a river bank and a river channel form an ecological circulating system, and the purpose of ecological restoration is achieved; by means of automatic circulation, the later maintenance cost is reduced, and formation and growth of original ecological biotic communities can be promoted; by means of combination of plants and concrete materials, a certain structural strength is achieved, and instability and erosion of the slope surface and the slope toe can be relieved; meanwhile, symbiosis and reproduction of multiple types of organisms can be achieved, the self-repairing capacity and purifying function are achieved, and conditions are created for growth of aquatic plants, breeding of aquatic animals and habitat reproduction activities of amphibians.

The invention discloses a long-service-life drill bit with self-repairing capacity, and belongs to the technical field of drilling equipment for petroleum and natural gas, mine engineering, building foundation engineering construction, geology, hydrology and the like. The long-service-life drill bit with the self-repairing capacity comprises a drill bit body and at least one blade; a plurality of first groups of cutting teeth are formed in the blade; slots are formed in the tooth distribution surface of the blade and / or the gauge protection surface of the blade and are used for fixing the first groups of the cutting teeth; at least one empty groove and at least one second group of cutting teeth are formed in at least one blade; slots are formed in the empty groove and are used for fixing the second group of the cutting teeth; at least part cutting edges of the second group of the cutting teeth are exposed from the inner surface of the empty groove. According to the long-service-life drill bit with the self-repairing capacity, after the cutting teeth in a certain area of the drill bit is worn completely, new cutting teeth can be exposed naturally to realize self-repairing of the drill bit, so that the self-repaired drill bit can drill continuously and effectively.

The application relates to a rubber-sealed valve, which belongs to the technical field of rubber seals, and includes a metal valve, an organic silica gel adhesive and a sealing ring, the sealing ring is adhered to the metal valve through the organic silica gel adhesive, and the sealing ring at least includes The following raw materials by mass: 30-40 parts of filler; 2-3 parts of zinc oxide; 6-12 parts of functional additive; 0.5-1 part of vulcanization aid; 1-2 parts of peroxide curing agent; Gum 45‑55 parts. The application has the effect of improving the bonding fastness between the adhesive for metal and the rubber sealing ring, thereby simplifying the secondary gluing to one gluing to improve production efficiency.

The invention discloses a self-cleaning self-repairing coating material for a fabric and a method for preparing the self-cleaning self-repairing coating material for the fabric. The coating material is a mixed solution of silane modified poxy resin prepolymer and a curing agent, wherein the curing agent contains at least two maleimide groups, and the mass ratio of the silane modified poxy resin prepolymer to the curing agent is 2:1-4:1. The coating material not only has the self-cleaning capacity, but also has the self-repairing capacity after heating, and chemical damage repairing and physical wear repairing can be achieved, and the coating material can be recycled. The method for preparing a self-cleaning self-repairing coating for the fabric comprises the following steps that 1, the silane modified poxy resin prepolymer is prepared; 2, the silane modified poxy resin prepolymer and the curing agent are mixed in proportion, and dissolved in the organic solvent, and a coating solutionis obtained; 3, the coating solution is applied to the fabric surface, after automatic leveling, the fabric is put into an oven for solidification, and the self-cleaning self-repairing coating is obtained on the fabric surface.

The invention relates to a self-repairing carbon fiber reinforced polyphenylene sulfide composition. The self-repairing carbon fiber reinforced polyphenylene sulfide composition comprises, by weight,65 to 90 parts of PPS resin, 10 to 30 parts of carbon fiber, 1 to 3 parts of allyl mercaptan, 2 to 5 parts of nanometer silver, 0.1 to 1 part of an anti-oxidant, and 0.1 to 1 part of a lubricant. A preparation method comprises following steps: PPS resin, the anti-oxidant, and the lubricant are mixed, and are introduced into an extrusion machine through a main feed inlet; carbon fiber is introducedinto the extrusion machine through a first side feed inlet of an extrusion machine cylinder body; allyl mercaptan and nanometer silver is introduced into the extrusion machine through a second side feed inlet of the extrusion machine cylinder body; and extrusion machine blending granulation is carried out so as to obtain the self-repairing carbon fiber reinforced polyphenylene sulfide composition. Compared with the prior art, the advantages are that: the repairing performance is excellent, the service life is long, the mechanical performance is excellent, the self-repairing carbon fiber reinforced polyphenylene sulfide composition can be used for preparing high strength high toughness materials, and the application prospect is promising.

The invention discloses a ferro-silicon nitride / alumina-chrome slag refractory matter for a cement kiln transition zone and a preparation method of the refractory matter, and belongs to the field of refractory matters. The refractory matter consists of the following raw materials: alumina-chrome slag, alumina micro powder and ferro-silicon nitride, and thermosetting phenolic resin is taken as a binding agent. During producing, the preparation method comprises the following steps: weighing various raw materials, uniformly mixing, compressing and moulding, drying as well as nitriding and sintering at 1200-1450 DEG C. The alumina-chrome slag, which is waste generated from the production of metallic chromium, basically has no industrial utilization value at present, the alumina-chrome slag contains 82-85wt% of aluminum oxide and 11-13wt% of chromium oxide, and mainly represented as a corundum-chromium oxide solid solution, the alumina-chrome slag is good in abrasion performance. By combining the ferro-silicon nitride and high-cost-performance alumina-chrome slag to generate beta-sialon from a reaction, the product disclosed by the invention is simple in process and low in cost, and excellent performance indexes are as follows: apparent porosity is 13-17%, volume density is 2.94-3.30g / cm<3>, cold crushing strength is 67-150MPa, refractoriness under load is higher than 1550 DEG C and thermal shock resistance is more than 12 times; and the refractory matter disclosed by the invention is excellent in abrasion performance and erosion resistance and is applicable to the cement kiln transition zone, and meanwhile, the recycling of the alumina-chrome slag is achieved.