5results about How to "Change concentration" patented technology

The application discloses an environment-friendly rubber composite material and a preparation method and application thereof, and relates to the technical field of tire rubber materials.The environment-friendly rubber composite material comprises, in parts by mass, 100 parts of a rubber matrix, 10-60 parts of a bio-based filler, 0.5-10 parts of an interface modifier, 1-8 parts of a vulcanizing component and 0.5-5 parts of a crosslinking aid; wherein the rubber matrix comprises natural rubber and butadiene rubber; the bio-based filler comprises at least one of lignin, cellulose or a derivative thereof; the interface modifier comprises a compounded system of a silane coupling agent and a bio-based small molecule containing multiple functional groups; and the crosslinking aid comprises a borate compound and a low-molecular polymer containing a dynamic hydrogen bond structure.The application also provides a preparation method and application of the material.The application improves the proportion of the bio-based material, improves the long-term stability of the interface between the bio-based filler and the rubber matrix, reduces the interface damage accumulation and dynamic heat generation under the action of cyclic load, and improves the fatigue performance and comprehensive service performance of the rubber composite material.

This invention discloses a slow-release granule formulation of sodium alginate-biochar loaded with thiamethoxam, its preparation method, and its application. The slow-release granule uses biochar as the adsorbent carrier to adsorb thiamethoxam and sodium alginate as the encapsulating material, which is then cross-linked and solidified by dripping calcium chloride solution. The mass ratio of biochar to thiamethoxam is (10~30):1, the mass-to-volume ratio of sodium alginate to water is 1.5~2.0 g:100 mL, and the concentration of the calcium chloride solution is 1.5%~3.0%. The prepared slow-release granule has a cumulative release time of over 90 hours in distilled water, with no obvious burst release phenomenon. Pot experiments show that it maintains a continuous control effect on eggplant thrips for 7 days after application, which is superior to conventional spraying treatment. This invention has a simple preparation process, is environmentally friendly, and has excellent slow-release performance, making it suitable for green control of agricultural pests.

The utility model discloses a right-angle parallel coaxial light source which comprises a bottom plate, an inner containing seat, a top plate, an expansion cylinder and a lamp bead shell, the bottom plate, the inner containing seat and the top plate are integrally installed, the expansion cylinder and the lamp bead shell are located on the inner containing seat, a light-emitting cover plate is installed on the top plate, the expansion cylinder is fixedly installed on one side wall of the inner containing seat, and the lamp bead shell is screwed on the expansion cylinder in a threaded mode. The fixing mode among the bottom plate, the inner containing base and the top plate and the fixing mode of the expansion cylinder on the inner containing base can be bolt installation or other fixing modes, a steering shaft is connected to the side, back on to the lamp bead shell, of an inner cavity of the inner containing base, a light reflecting plate is arranged on the steering shaft, and the light reflecting plate is formed by integrally welding an upper plate body and a lower plate body. The upper plate body fixedly sleeves the steering shaft, and the angle of one side of the upper plate body facing the expansion cylinder is different from that of one side of the lower plate body facing the expansion cylinder. According to the right-angle parallel coaxial light source, the intensity, the concentration ratio, the position and the angle of light rays emitted from the light-emitting cover plate can be conveniently changed, so that the actual lighting requirements under different conditions can be met.

This invention discloses a method for the coordinated removal of products from near-atomic-scale electrochemical machining, along with its system apparatus and applications. The core of this method lies in the synergistic use of chemical complexation, pulsed electric field modulation, and interfacial electrostatic repulsion to proactively address the problem of product blockage within near-atomic-scale machining channels. Specifically, by adding a strong complexing agent to the electrolyte, the metal ions generated during machining are converted in situ into soluble complexed anions. A composite waveform, including an anodic pulse during machining, a zero-potential intermittent period during diffusion, and a reverse cathode pulse during impurity removal, provides dual impurity removal momentum through diffusion and electromigration. Simultaneously, the inner wall of the ion channel protein is negatively modified to reduce product transport resistance and adsorption through electrostatic repulsion. The synergistic effect of these three mechanisms enables effective and continuous product management without compromising machining locality. Correspondingly, this invention also provides a dedicated machining system for implementing this method and its application in the machining of easily passivated metal materials.

The utility model discloses a steel wire surface phosphating pickling processing device of steel wire processing technical field, including processing box, the top of processing box is installed the box cover, and the inner bottom wall of processing box is connected with a plurality of baffle, and processing box is divided into pickling tank, washing tank no.