3results about How to "Will not migrate" patented technology

The utility model relates to micro plastic migration technical field especially for a kind of experimental device simulating micro plastic migration in soil, including the experimental cylinder and sample cylinder of vertical arrangement;The experimental cylinder includes the first cylinder body of being sequentially stacked in vertical direction, and the inner bottom of the first cylinder body is fixed with support net;The inside of each first cylinder body is filled with soil layer;The diameter of the sample cylinder is less than the diameter of experimental cylinder, and the sample cylinder is inserted into the soil layer from the top middle part of the experimental cylinder;The inside of sample cylinder is sequentially provided with micro plastic layer and coarse sand layer from bottom to top. The utility model is divided into multiple first cylinder body by experimental cylinder, when filling soil actually, can first fill every first cylinder body with soil respectively, then multiple first cylinder body filled with soil is stacked according to certain order, so it can improve the filling speed of soil layer, and can significantly improve the accuracy of experimental result.

The invention belongs to the technical field of analysis and detection, and particularly relates to a preparation method of a non-pH dependent lysosome targeted viscosity fluorescent probe, and the method comprises the following steps: reacting 8-hydroxyjulolidine-9-formaldehyde with diethyl malonate to obtain a compound 1; further reacting the compound 1 under the action of phosphorus oxychloride and N, N-dimethylformamide to obtain a compound 2; and reacting the compound 2 with benzothiazole-2-acetonitrile to generate the fluorescent probe HCB. Aiming at the problems that an existing lysosome viscosity probe has strong dependency on an acid environment and the positioning accuracy is reduced when the pH of the lysosome is changed, the non-pH-dependent probe is obtained, so that the monitoring on the viscosity change of the microenvironment of the lysosome under different acid-base conditions is realized, and the method can be used for lysosome-related viscosity imaging.

This invention discloses a cross-linked polyethylene insulation material for medium-voltage DC cables and its preparation method. By weight, it comprises the following raw materials: 100-110 parts LDPE, 5-8 parts modified filler, 0.4-0.6 parts antioxidant, 0.2-0.3 parts cross-linking aid, and 0.4-0.7 parts initiator. The modified filler, prepared by a specific method, combined with an optimized cross-linking and antioxidant system, significantly improves the overall performance of the insulation material. This modified filler, through the synergistic effect of its deep trap energy levels in the core and the shallow trap energy levels of the outer organic molecules, increases the DC resistivity and breakdown field strength of the material. Simultaneously, the flexible long-chain structure grafted onto the filler surface improves its interfacial compatibility with the polyethylene matrix, giving the material excellent mechanical properties that meet the stringent requirements for long-term safe and stable operation of medium-voltage DC cables.