5results about How to "Diffusion is fast" patented technology

The present application relates to a kind of flame-retardant anti-shrinkage PBAT / bamboo powder supercritical foaming material and its preparation method, belong to degradable foaming material technical field.To solve the problem that PBAT system introduces bamboo powder and flame retardant causes foaming material cell structure uneven, density uneven, mechanical property drops, the present application provides a kind of flame-retardant anti-shrinkage PBAT / bamboo powder supercritical foaming material, component includes PBAT, bamboo powder and flame retardant, melt extrusion granulation after being placed in airtight container, fills in supercritical gas and is foamed to be prepared.The present application improves the anti-shrinkage and flame-retardant performance of PBAT foaming material by the addition of bamboo powder and flame retardant;By optimizing the injection amount of supercritical gas, foaming temperature and pressure, reduce foaming instability, effectively offset the adverse effects of bamboo powder and flame retardant on cell growth, obtain uniform cell structure and density, further improve the mechanical property of material.

The application discloses a kind of fibrous felt that can be all-weather fast recovery high viscosity crude oil, preparation method and its application.The fibrous felt includes the fibrous substrate formed by profiled cross-section fiber, and the binder layer, functional layer and hydrophobic coating sequentially loaded on its surface;Functional layer is used to generate Joule heat when energized and generate photo-thermal effect under light;The water contact angle of fibrous felt is greater than 140°.The application also provides its preparation method and application.The application integrates photo-thermal and Joule heat effect in the same felt, realizes all-weather operation ability;Use C-shaped or Y-shaped profiled cross-section fiber, accelerate the penetration and absorption of high viscosity crude oil;Through the synergistic effect of polypyrrole layer and MXene layer, the resistance is significantly reduced and the oil absorption time is shortened.The fibrous felt of the application has simple preparation process, and is suitable for all-weather oil spill recovery in complex environment such as ocean oil spill.

According to the composite corrosion inhibitor etching liquid and the preparation method and application thereof, a composite corrosion inhibition system composed of the first corrosion inhibitor and the second corrosion inhibitor is introduced into an acid etching system, and selective removal of a copper seed layer under different etching conditions is achieved; according to the composite corrosion inhibition system, the corrosion defect of the surface of a copper electrode can be remarkably reduced, the surface appearance can be improved, the lateral corrosion depth can be reduced, and meanwhile complete etching of a residual copper seed layer in a non-electrode area is not affected. The two types of nitrogen-containing heterocyclic corrosion inhibitors generate a synergistic adsorption effect on the copper surface by utilizing the molecular structure and adsorption behavior difference to form a compact and stable composite protection layer, so that the synergistic regulation and control on the overall corrosion rate and the local lateral corrosion behavior are realized. The composite corrosion inhibitor etching liquid has the advantages of being good in etching uniformity, remarkable in lateral erosion inhibition effect, wide in process window and suitable for industrial application.

The application discloses a chemical strengthening process of an ultrathin microcrystalline glass touch screen, which comprises the following steps: S1, cleaning and purifying an ultrathin microcrystalline glass substrate with a thickness of 0.3mm-0.5mm; S2, immersing the purified substrate into a first salt bath for ion exchange pre-strengthening, wherein the first salt bath comprises potassium nitrate, sodium nitrate and lithium nitrate; S3, immersing the pre-strengthened substrate into a second salt bath for ion exchange deep strengthening, wherein the second salt bath is a high-purity potassium nitrate salt bath; S4, placing the deep-strengthened substrate into an environment with a temperature of 300 DEG C-320 DEG C and keeping the temperature constant for 5min-15min, then naturally and slowly cooling to room temperature and cleaning; and S5, heat treating the cleaned substrate to obtain a finished ultrathin microcrystalline glass touch screen. The finished product has a surface layer compressive stress of greater than or equal to 850MPa, an ion exchange layer depth of greater than or equal to 120mu m and a flatness of less than or equal to 0.05mm, and the anti-scratching, anti-impact, anti-bending performance and environmental reliability of the ultrathin touch screen are improved.

The utility model relates to the technical field of carriages, and discloses a wide-body dumper carriage which comprises a carriage body, a bottom plate is fixedly connected to the lower surface of the carriage body, a first air guide opening is formed in the bottom plate, a longitudinal beam is fixedly connected to the lower surface of the bottom plate, and a second air guide opening is formed in the longitudinal beam in a penetrating mode. A supporting beam is fixedly connected to the outer wall of the longitudinal beam, a cross beam is fixedly connected to one side of the outer wall of the longitudinal beam, two third air guiding openings are formed in the cross beam, a side bent beam is fixedly connected to one side of the cross beam, and an air outlet beam is fixedly connected to one end of the cross beam. According to the utility model, through the design of the plurality of longitudinal beams and the connecting cavities, the heating coverage rate of the bottom plate and the transition area is obviously improved, and meanwhile, the connectivity of the cavities is improved through the gas guide ports I, so that tail gas diffusion is more uniform; tail gas does not enter a cavity of the supporting beam, the shock absorber is prevented from being grilled, and the service life is prolonged; the first filter plate and the second filter plate effectively prevent blocking, stable operation of the system is guaranteed, and practicability of the whole carriage is improved.