36results about How to "High bonding strength" patented technology

The invention relates to a high-modulus carbon fiber used as a thermoplastic resin-based composite reinforcement body and a preparation method thereof. The preparation method comprises the steps of surface purification of a standard carbon fiber product, high modeling, constant-current electrolysis oxidation, sizing agent imidization and the like, wherein the surface purification of the standard carbon fiber product refers to that high-molecular matter on the surface of the fiber is removed in an inert atmosphere; high modeling refers to heat treatment in an inert atmosphere with the temperature exceeding 2000 DEG C; constant-current electrolysis oxidation refers to that the fiber is subjected to electrochemical oxidation in an ammonium salt electrolyte solution; sizing agent imidization refers to that thermoplastic resin precursor sizing agent with which the surface of the fiber is coated is subjected to heat treatment to be transformed into a polyimide sizing agent. The carbon fiberprepared by using the method is high in modulus, the adhesion between the carbon fiber and a thermoplastic resin substrate is significantly improved, the carbon fiber can be used as the thermoplasticresin composite reinforcement body, and the carbon fiber is suitable for industrial production.

The invention relates to the field of coatings, and particularly discloses a self-cleaning antibacterial coating and a preparation method thereof. The self-cleaning antibacterial coating is prepared from the following substances in parts by weight: 80 to 100 parts of matrix emulsion, 3 to 10 parts of water, 0.1 to 5 parts of functional additive, 4 to 8 parts of self-cleaning antibacterial particles and 15 to 50 parts of composite filler, the self-cleaning antibacterial particle is a microsphere with a core-shell structure, the microsphere with the core-shell structure comprises an inner core matrix and a coating layer coating the surface of the inner core matrix, and the coating layer is a porous titanium dioxide aerogel film. The preparation method comprises the following steps: S1, preparing materials; s2, mixing, grinding and dispersing; s3, performing secondary mixing; according to the invention, the formula and composition of the coating are optimized, and the structure of the self-cleaning antibacterial particles is further optimized, so that the surface pollutant loading resistance is improved, and the antibacterial durability is improved.

The invention relates to a high-strength TPU composite thermal insulation fabric and a preparation method thereof, and belongs to the technical field of textile fabrics. According to the technical solution of the invention, through hollow microspheres added into a sol material between each TPU film and a substrate fiber layer, the structural properties of the material are improved, the prepared composite hollow microspheres exhibit hexagonal close-packed spatial distribution, the dispersed structure is conducive to forming a stable structure in the material and improving the bonding strength between the materials, so that the bonding strength and mechanical properties of the material are effectively improved; and at the same time, after the fabric provided by the invention is filled with the hollow microspheres, the thermal conductivity is reduced, the thermal insulation performance is further improved, and the thermal insulation performance of the material is effectively improved.

The invention discloses a natural granite marble and multiple-artificial materials composite high-strength adhesive. The adhesive is prepared from the following raw materials in parts by weight: 55 to65 parts of grafted resin, 20 to 30 parts of rosin, 3 to 7 parts of alkylene glycidyl ether, 15 to 25 parts of hydrogenated castor oil, 10 to 20 parts of silane coupling agent KH560, 5 to 10 parts ofhydroxypropyl cellulose ether, 5 to 15 parts of lauryl sodium sulfate and 10 to 20 parts of filling aid. According to the natural granite marble and multiple-artificial materials composite high-strength adhesive of the invention, the added rosin can improve the connection effect between the raw materials, the added lauryl sodium sulfate can moisten marble and artificial materials thoroughly, andthe added silane coupling agent KH560 can modify the raw materials of the adhesive, so that the product can be compounded with the marble and artificial materials more easily, and the bonding strengthof the adhesive is improved.

The invention relates to a Ti2SnC-based electrical contact material as well as a preparation method and application thereof, belonging to the filed of materials. The first technical problem solved by the invention is providing a novel electrical contact material as well as a preparation method and application thereof. The electrical contact material provided by the invention is the Ti2SnC-based electrical contact material which is prepared from the following components in parts by weight: 80-99 parts of Ti2SnC and 20-1 parts of binder, wherein the binder is selected from at least one of metal, alloy and carbon powder.

The invention provides a quantum dot solar cell prepared from a battery structure that a continuous ITO nanofiber is taken as a transmission layer and an electro-deposition CdS quantum dot is taken as a sensitizing agent; and the continuous ITO nanofiber is processed by adopting 5% to 40% of polyethylene glycol (PEG) to improve the bonding strength of the nanofiber and a FTO (Fluorinedoped Tin Oxide) substrate, facilitate electrical transmission, reduce compound in electrical transmission, speed up light adsorption, and further improve the photoelectrical conversion efficiency of the cell; and the quantum dot solar cell has the characteristics of simple preparation process, low in preparation cost and stable preparation process.

The invention discloses a whole plasma vacuum plating process for a car ornament. The whole plasma vacuum plating process includes the following steps that (1) the car ornament is placed into an ultrasonic washing unit to be thoroughly washed; (2) the car ornament is fed into a film plating vacuum chamber of an ion source, vacuumizing is carried out, the vacuum degree reaches (1-5)*10<-3>, meanwhile, heating is carried out until the temperature ranges from 90 DEG C to 180 DEG C, argon is led in, Ar ionization is triggered to form Ar plasmas for strengthening discharging, and bombardment is carried out for 2 min to 10 min; (2) the air pressure is adjusted to range from 0.2 Pa to 5 Pa, zirconium, chromium or platinum is selected to serve as a substrate material, and a bottom layer is plated; (3) the vacuum degree keeps to range from 0.2 Pa to 8 Pa, the bias voltage of a bias voltage power source is adjusted and ranges from 100 V to 220 V, an ion plating arc source is started, and an ion plating function layer is manufactured on the bottom layer; (4) in one vacuum chamber, an anti-corrosion protection layer is continuously formed in the surface of the ion plating function layer; and (5) the ion source is closed, cooling is carried out, the pressure of the vacuum chamber rises, the car ornament is taken out, and checkout and packaging are carried out. According to the whole plasma vacuum plating process, the appearance and the degree of finish of a product are guaranteed, the anti-corrosion property is improved, three-waste emission is avoided, environmental protection is achieved, and pollution is avoided.

The invention discloses a method for preventing landslides induced by inappropriate liquid injection intensity in in-situ leaching mining. The method comprises the following steps: S1, drilling a liquid injection hole; S2, integrating an upper-layer mold bag (1), a lower-layer mold bag (2) and other parts into a whole; S3, injecting cement slurry from an inlet of a slurry injection pipe I, wherein the cement slurry enters the upper-layer mold bag (1), so that the slurry injection of the upper-layer mold bag (1) is realized; injecting cement slurry from an inlet of a slurry injection pipe II (6), wherein the cement slurry enters the lower-layer mold bag (2), so that the slurry injection of the lower-layer mold bag (2) is realized; S4, enabling a medicament to be inlet into a liquid injection pipe (4) from an inlet end of the liquid injection pipe (4), wherein the medicament enters a region formed by the upper-layer mold bag (1), the liquid injection hole (10) and the lower-layer mold bag (2), so that the injection of the medicament is realized. The method disclosed by the invention has the benefits that the medicament can be prevented from entering a non-ore body layer and a space between the non-ore body layer and an ore body layer, and due to the effect of an anchor rod, a slippage phenomenon generated between a clay layer and the ore body layer, as well as between the ore body layer and a bed rock is effectively avoided.

The invention discloses a copper plating process which comprises the following steps: (1) removing dust and oil from a baseline; (2) pickling and phosphorizing; (3) washing with water; (4) passivating; (5) plating tin, that is, putting the baseline in a copper plating solution at the temperature of 20-40 DEG C immediately after washing and passivating under such conditions that the transfer speed is controlled to be 2-5 m/s and the current density is controlled to be 5-15 a/dm<2>; (6) washing with water; and (7) drying, winding and packaging. The process disclosed by the invention is reasonable, the copper coating layer is uniform and high in bonding strength, and the service cost is low.