51results about How to "Achieve the purpose of self-healing" patented technology

The invention relates to crack self-repairing concrete using aerobic basophilic microorganisms and a preparation method thereof. The concrete contains expanded perlite loading an aerobic basophilic microorganism repair agent, cement, pebbles, sand, silica fume, water, calcium lactate and water reducer. The crack self-repairing concrete has the crack self-repairing function and has heat-preservation and heat-insulation functions, the aerobic basophilic microorganisms serve as a crack repairing agent, calcium lactate serves as nutritional matter for microorganism metabolism, and expanded perlite serves as a carrier of the crack repairing agent. When concrete cracks, water and air enters the cracks so that resting microorganisms can restore the metabolism function, calcium lactate is converted into calcium carbonate precipitate, and accordingly the aims of automatically diagnosing and repairing the concrete cracks, preventing expansion of the cracks and improving concrete impermeability are achieved. The microorganism crack self-repairing concrete serves as a concrete material integrating the functions of crack self-diagnosis and self-repairing, lightweight, heat preservation and heat insulation, and has large research value and application potential.

The invention relates to a nanocomposite material and a preparation method thereof, and specifically discloses a method for preparing a nanocomposite material with self-healing properties, comprising the following steps: (1) reacting high polymer polyols with polyisocyanate to obtain two End-NCO-terminated polyurethane prepolymer; (2) adding self-healing functional molecules to two-end-NCO-terminated polyurethane prepolymer, heating and reacting to obtain a polyurethane matrix with repairing properties; (3) adding filler to the polyurethane prepolymer with repairing properties In the polyurethane matrix with repair performance, a nanocomposite mixed solution is prepared; (4) the solution is removed to obtain a composite material. The nanocomposite material of the invention can be self-repaired by heating, and the dielectric properties and mechanical properties are well recovered after self-repair.

The invention discloses a preparation method of a magnetically induced self-repair nanometer composite hydrogel. A nanocomposite material with a metal nano-material grows on the surface of magnetic nanometer particles is used as a cross-linking agent, and the hydrogel employs magnetic nanometer particles which produce heat that drives precious metal-sulfur coordination bond to dynamically vibratein an alternating magnetic field as a healing main body; furtherly, the precious metal nanoparticles flourishingly grow on the surface of magnetic nanometer particles by an electrostatic action, the structure is novel, many crosslinking positions are provided, and accordingly, the hydrogel has dense crosslinking network and high stretching stress-strain; the magnetic nanometer particles can respond in the magnetic field and induce self-healing, and the product has good application prospects in the fields of anti-fatigue materials, biological medicines, tissue engineering and the like.

The invention provides a liquid crystal lens. The improvement is that a second electrode in a first lens unit comprises a plurality of bar electrodes which are same in width and equal in separation distance and extend along the y direction; a first insulation layer is arranged on the second electrode and provided with an opening in a position corresponding to the second electrode; a third electrode is arranged on the first insulation layer; the third electrode comprises two parts, the first part is a bar electrode in a position corresponding to the opening of the first insulation layer, and the second part is a suspended bar electrode arranged between every two bar electrodes of the first part; and a second insulation layer is arranged on the third electrode. The invention further provides a stereoscopic display device using the liquid crystal lens. The liquid crystal lens provided by the invention has the advantages as follows: due to the new liquid crystal lens can, the impedance of the bar electrodes in the liquid crystal lens unit is reduced on one hand and the automatic repair effect is exerted to a certain extent at the same time on the other hand; and the problem of non-uniform voltage distribution in a liquid crystal lens array is radically solved.

The invention relates to a self-adhesive reactive ethylene-octene copolymer composite waterproof coiled material and a production method thereof. The self-adhesive reactive ethylene-octene copolymer composite waterproof coiled material is formed by superimposing and compounding a base layer, a surface layer and an anti-adhesive isolating layer, wherein the base layer is an ethylene-octene copolymer waterproof layer, the surface layer is a self-adhesive reactive butyl rubber layer, and the isolating layer is a PE (polyethylene) anti-adhesive isolating film; on the basis of 100 parts of ethylene-octene copolymer, the base layer comprises 50-110 parts of carbon black, 30-70 parts of superfine talc powder, 5-10 parts of calcium carbonate, 20-60 parts of a plasticizer, 2-10 parts of polyethylene glycol, 1-6 parts of dicumyl peroxide, 0.5-2.75 parts of a crosslinking agent and 1-3 parts of an anti-aging agent; and the surface layer comprises the main raw materials namely butyl rubber, polyisobutylene, amorphous alpha-olefin copolymer and viscosity increasing resin, and the surface layer comprises auxiliary materials namely desulfurization gypsum, bentonite, calcium stearate, lithium chloride, calcium chloride, a swelling agent and a crosslinking agent. The invention can realize molecular chain complete crosslinking of the ethylene-octene copolymer waterproof coiled material to improve the thermal stability of the material and can achieve the aim of self-repairing by stopping water with water.