This invention discloses a portable UV and hydrogenperoxide co-sterilization device for biosafetysample collection and delivery packaging. The device employs a double-layered insulated enclosure, with a UV sterilization lamp at the top and an atomizing hydrogenperoxidenozzle on the inner wall. The atomizing nozzle sprays micron-sized aerosol particles to achieve omnidirectional dispersion of the aerosol medium within the sealed space, combined with the UV light source arrangement design to eliminate sterilization dead zones. An adjustable partition inside the enclosure allows for flexible separation of samples of different sizes, preventing cross-contamination. Ventilation holes in the enclosure walls balance internal and external air pressure, ensuring product safety. An environmental monitoring module at the bottom monitors temperature and humidity data in real time and displays it on a screen outside the enclosure, providing visualization of the internal temperature and humidity. This invention facilitates dual sterilization and is adaptable to various pathogenic microorganism disinfection scenarios, possessing characteristics such as impact resistance, corrosion resistance, non-destructive sample handling, and environmental friendliness.
To provide a fluorinated elastic copolymer in which the contents of metal elements and chloride ions are low, and a method for producing a fluorinated elastic copolymer, whereby it is possible to obtain a fluorinated elastic copolymer in which the contents of metal elements and chloride ions are low. A fluorinated elastic copolymer in which the content of metal elements is at most 20.0 ppm by mass and the content of chloride ions is at most 1 ppm by mass; and a method for producing a fluorinated elastic copolymer, which comprises coagulating a fluorinated elastic copolymer in a latex containing the fluorinated elastic copolymer by using an acid containing no metal elements or no chloride ions, and washing the coagulated fluorinated elastic copolymer with a liquid medium having a content of metal elements of at most 2.0 ppm by mass and a content of chloride ions of at most 2 ppm by mass.
The application discloses a preparation method of a silver tinoxideelectric contact material with good plasticity and arc erosion resistance, and comprises the following steps: first, taking Ag ingot, Sn ingot and X ingot of an additive element to prepare Ag-Sn alloypowder with a required particle size; the obtained powder is oxidized to obtain AgSnO2 mother powder; then, the required amounts of Ag, Sn and X elements are calculated according to the component proportion of the required preparation material, and are weighed for standby, wherein the Sn and X elements are weighed in the form of AgSnO2 mother powder, and the Ag element is weighed in the form of silver nitrate and AgSnO2 mother powder; then, an alkaline substance in excess of silver nitrate is weighed, and the alkaline substance and the silver nitrate are respectively prepared into solutions; then, the weighed AgSnO2 mother powder is added into the alkaline solution, and the silver nitrate solution is continuously added for reaction to obtain AgSnO2 powder; and finally, the obtained powder is prepared into a silver tinoxideelectric contact through a conventional process. The contact prepared by adopting the method has good plasticity and arc erosion resistance.
Provided is a pigment composition that includes an isoindoline compound, has excellent dispersibility, weather resistance and heat resistance, and good storage stability, and is capable of forming images having high chroma and the like, the pigment composition including an isoindoline compound represented by formula (1) and an isoindoline compound represented by formula (2). Also provided are a colorant composition, a coating material, an ink, an ink set, a printed matter, and a packaging material.