9results about How to "Improve chargeability" patented technology

The invention belongs to the technical field of cosmetic preparations, and particularly relates to a composition containing triethanolamine and tranexamic acid modified hydroxytyrosol as well as a preparation method and application of the composition. According to the invention, hydroxytyrosol is modified by using triethanolamine and tranexamic acid through etherification and esterification reactions, the processing mode obviously enhances the electrification capability of hydroxytyrosol, and further obviously enhances the antibacterial strength of hydroxytyrosol, so that hydroxytyrosol is compounded with triethanolamine and tranexamic acid to replace a traditional preservative, and the antibacterial property of hydroxytyrosol is improved. And adverse reactions such as irritation and allergy of common preservatives are improved. According to the invention, the hydroxytyrosol is modified by using triethanolamine and tranexamic acid, and triethanolamine and tranexamic acid are functional components, so that triethanolamine and tranexamic acid can play roles in resisting oxidation, whitening and the like together with hydroxytyrosol in a cosmetic matrix while playing a role in improving the bacteriostasis of hydroxytyrosol.

The invention belongs to the technical field of membrane separation, and discloses the application of a polyamide nanofiltration membrane to selectively separate new pollutants and salt ions in a water environment. The surface carboxyl density of the polyamide nanofiltration membrane is 60-200 μmol / m 2 , zeta potential ≤‑23mV, and average effective membrane pore size of 0.2‑1.0nm. The polyamide nanofiltration membrane with high negative charge and relatively low pore size prepared by the present invention has a retention rate of more than 99% for new pollutants and a retention rate of less than 40% for magnesium ions. The preparation method is simple and easy to implement, with low cost, and has broad application prospects in the "high decontamination and low hardness removal" water treatment technology.

The invention discloses a preparation method of an ultra-filtration membrane and the ultra-filtration membrane, and solves the technical problem that a preparation method of an MWCO 5000 ultra-filtration membrane in the prior art is tedious in process. The preparation method of the ultrafiltration membrane comprises the following steps: (1) preparing a precursor solution containing an organic solvent, polyether sulfone, sulfonated polysulfone and a pore-foaming agent; (2) performing vacuum defoaming treatment on the precursor solution to obtain a membrane casting solution; and (3) loading the membrane casting solution on a carrier, and then carrying out gel bath treatment to obtain the ultrafiltration membrane. According to the invention, through the interaction of the sulfonic acid group of sulfonated polysulfone and the pore-foaming agent, the ultrafiltration membrane reaching the MWCO 5000 separation performance can be directly obtained in one step through the phase inversion effect, a composite layer does not need to be further synthesized, the working procedures are obviously reduced, and the manufacturing time and cost are saved.

Provided is a charging roller for an electrophotographic device having excellent uniformity of discharge characteristics. In the charging roller 10, one or more grooves 22 extending in a direction within + / -46 DEG with respect to the circumferential direction y are regularly formed in the axial direction X on the outer peripheral surface of the elastic body layer 14, the groove width w1 is 4 [mu] m to 30 [mu] m, and the groove depth d is 2 [mu] m to 12 [mu] m. The width (w2) of a planar portion (24), which is a portion other than the groove portion (22), in the outer peripheral surface of the elastic body layer (14) is 4-30 [mu] m, the relationship between the angle (theta) of the direction in which the groove portion (22) extends and the circumferential direction (y) and the ratio (w2 / w1) of the groove width (w1) of the groove portion (22) and the width (w2) of the planar portion (24) is a specific relationship, and the surface layer (16) contains a binder polymer (16a) and roughness-forming particles (18). The roughness-forming particles (18) are disposed on the flat surface section (24) and the groove section (22), respectively.

The present invention relates to the technical field of waste battery recycling, and specifically to a waste battery recycling and lithium extraction device based on electrochemistry, comprising: a mounting frame, wherein a recovery tank and an acid storage tank are fixedly arranged at both ends of the mounting frame respectively; an electrochemical component fixedly arranged at one end of the mounting frame, wherein the electrochemical component comprises an electrolytic component for electrolysis in a flow manner, and a liquid inlet hose and a liquid outlet hose connected to the inside of the electrolytic component and used for liquid inlet and liquid outlet. The present invention squeezes and releases the first bellows by moving the first driving frame up and down, so that the cleaning liquid is pressurized to flow back and forth in the electrolytic component, the turbulence of the cleaning liquid is increased, and the scale is dissolved and discharged. At the same time, the cleaning liquid flows back and forth inside the electrochemical component, which can make the flow path of the cleaning liquid inside the electrochemical component more complex and changeable, which helps to reduce cleaning dead corners, and can accelerate the shedding and discharge of dirt, thereby improving the cleaning efficiency.

The purification unit comprises a plurality of first electrodes and a plurality of second electrodes, the first electrodes and the second electrodes are hollow pipes with different diameters, the first electrodes and the second electrodes are coaxially sleeved and are sequentially and alternately arranged in the direction from the axis to the periphery, and the purification unit further comprises an upper connecting support and a lower connecting support. The upper connecting support is arranged at one end of each first electrode and electrically connects and fixes the first electrodes together, the lower connecting support is arranged at one end of each second electrode and electrically connects and fixes the second electrodes together, and a first opening is formed between the other ends of the adjacent first electrodes. A second opening is formed between the other ends of the adjacent second electrodes, the plurality of first electrodes connected together are inserted between the plurality of second electrodes connected together from the second opening, and the plurality of second electrodes connected together are inserted between the plurality of first electrodes connected together from the first opening, and the first electrodes and the second electrodes are alternately arranged in sequence.

This utility model discloses an auxiliary device for electroplating hard chrome in the inner hole of a slender cylindrical part. It includes a hook, a connecting guide plate, a hollow outer nut, three insulating guide sleeves, a hollow stud, and an auxiliary anode. The connecting guide plate has two through holes. The hook includes a bent hook portion and a long shaft portion. The long shaft portion passes through hole one and is welded to it. The bottom of the long shaft portion is welded to the outer circle of the hollow outer nut. One end of the hollow outer nut near the connecting guide plate has a third through hole along its central axis, and the other end has an internal thread. The hollow stud has a fourth through hole along its central axis and an external thread on its outer side. Through holes two, three, and four are coaxial and have the same diameter, and each has an insulating guide sleeve. The auxiliary anode passes sequentially through the insulating guide sleeves in through holes two, three, and four. This device is simple in design, easy to manufacture, convenient to operate, highly modifiable, and can be combined in various ways. It has low cost, simple adjustment and replacement operations, and strong rapid response capability for production.

The application provides a release agent for micro-spraying and a preparation method and application thereof, and the release agent comprises modified silicone oil 10-15 parts by weight, zinc dialkyldithiocarbamate 0.1-0.8 parts by weight, a compatibilizer 0.1-0.3 parts by weight and mineral oil 80-90 parts by weight. The release agent provided by the application has the advantages of high release performance, high release rate, small release agent dosage, small adhesion of a mold frame, small oil mist generation, high stability, good high-temperature resistance and the like when used in a micro-spraying process.

The invention relates to the technical field of waste battery recycling, in particular to a waste battery recycling and lithium extracting device based on electrochemistry, which comprises a mounting frame, and a recycling tank and an acid storage tank are fixedly arranged at the two ends of the mounting frame respectively; the electrochemical assembly is fixedly arranged at one end of the mounting frame and comprises an electrolysis assembly for performing electrolysis in a flowing manner, and a liquid inlet hose and a liquid outlet hose which are communicated with the interior of the electrolysis assembly and are used for feeding and discharging liquid. The first driving frame moves up and down to extrude and release the first corrugated pipe, so that the cleaning liquid is pressurized to flow back and forth in the electrolysis assembly, the turbulence degree of the cleaning liquid is improved, and scaling is dissolved and discharged, and meanwhile, the cleaning liquid flows back and forth in the electrochemical assembly, so that the cleaning effect is improved. According to the electrochemical component, the flowing path of the cleaning liquid in the electrochemical component can be more complex and changeable, cleaning dead angles can be reduced, dirt falling and discharging can be accelerated, and therefore the cleaning efficiency is improved.