6results about How to "Stable molecular structure" patented technology

This utility model discloses a protective mechanism for an automotive shock-absorbing weighing display controller, relating to the technical field of automotive shock-absorbing weighing display controllers. It includes a controller body and a multi-stage progressive shock-absorbing mechanism. The multi-stage progressive shock-absorbing mechanism is fixedly connected to the outer surface of the controller body. The multi-stage progressive shock-absorbing mechanism includes a metal spring fixedly connected to the outer surface of the controller body. A helical steel spring is fixedly connected to one side of the metal spring, and a butyl rubber damping rod is fixedly connected inside the helical steel spring. A fluororubber sealing ring is provided at the upper end of the butyl rubber damping rod. The helical steel spring is vertically installed between the controller body and the protective housing. Compared with existing ordinary protective mechanisms, this automotive shock-absorbing weighing display controller protective mechanism improves the buffering effect and enhances the operational stability of the controller in high-frequency vibration environments. It also reduces the overall weight of the housing while increasing its strength, meeting the vehicle's lightweight requirements and reducing additional load.

This utility model relates to the field of twin-screw extrusion technology for nylon granules, and discloses a twin-screw extrusion device for reinforced nylon granules, including a housing assembly, a heating assembly, an extrusion assembly, a pressurizing assembly, and a cooling assembly. The heating assembly is symmetrically distributed and installed on the outer wall of the housing assembly, the extrusion assembly is installed inside the housing assembly, the pressurizing assembly is installed above the housing assembly, and the cooling assembly is installed at the bottom of the housing assembly. The pressurizing assembly is provided to apply additional pressure to the material during extrusion, causing the material to undergo stronger compression and shearing between the screw and the barrel. This also helps to more uniformly integrate the components in the nylon granules, reducing microscopic inhomogeneity in the material, thereby improving the mechanical properties, dimensional stability, and appearance quality of the product. The cooling assembly is provided to facilitate rapid cooling of the material after extrusion, maintaining the molecular structure and performance stability of the nylon granules.

The invention discloses a high-temperature-resistant hot melt adhesive and a preparation method thereof, and relates to the technical field of hot melt adhesives. The high-temperature-resistant hot melt adhesive is prepared from the following raw materials in parts by weight: 25 to 35 parts of modified polyimide resin, 20 to 30 parts of modified benzoxazine resin, 8 to 12 parts of carboxyl-terminated nitrile rubber, 5 to 8 parts of C5 / C9 copolymerized petroleum resin, 3 to 5 parts of hydrophobic modified nano silicon dioxide, 1 to 2 parts of silicone powder, 0.5 to 1.0 part of antioxidant 1010, 0.3 to 0.8 part of zinc stearate and 0.05 to 0.1 part of tetrabutylammonium bromide. The high-temperature-resistant hot melt adhesive is scientific in raw material ratio, core resin is modified to improve heat resistance and compatibility, filler such as hydrophobic nano silicon dioxide is added to enhance performance, the preparation process is controllable, nitrogen protection is achieved in the whole process, moisture absorption is prevented through granulation and drying treatment, and a finished product is excellent in high-temperature resistance, good in comprehensive performance and good in storage stability.

This invention relates to a D-A-D structured NIR-II photothermal material, its preparation method, and its applications. Specifically, the photothermal material of this invention has a simple structure, is easy to synthesize, is easy to purify, and has a high yield. Furthermore, due to its large conjugated system, the molecular structure is stable and not easily degraded under NIR-II light irradiation. In addition, the photothermal material of this invention has excellent optical properties, good photothermal conversion efficiency, extremely low biotoxicity, and broad ultraviolet absorption in the 800-1000 nm range. Therefore, it has great application prospects in near-infrared photodynamic therapy and tumor treatment.

The present disclosure relates to an oil filtering material, a preparation method and application thereof, and the raw materials of the oil filtering material include, in terms of mass percentage, 30-60% of water-absorbing material, 30-60% of thermoplastic elastomer material, 5-10% of compatibilizer and 1-5% of inorganic filler. The preparation method includes: mixing a certain proportion of the water-absorbing material, the thermoplastic elastomer material, the compatibilizer and the inorganic filler to obtain a mixture; plasticizing the mixture to obtain a melt; vulcanizing the melt to obtain a vulcanizate; crushing the vulcanizate to obtain a water-absorbing swelling material; uniformly laying the water-absorbing swelling material on a porous material and performing hot-pressing compounding to obtain the oil filtering material. The oil filtering material, the preparation method and application thereof have low cost, simple preparation process, and can improve the filtering effect of oil, especially vehicle ethanol gasoline, and prolong the service life of the oil filtering material.

The invention discloses an organic compound, an organic layer, application of the organic layer and an organic electroluminescent device, and relates to the technical field of organic electroluminescent materials.The general formula of the organic compound is shown in the formula (I) or the formula (II), and the molecular structure of the organic compound has a large plane conjugated structure, so that the organic compound has good charge transfer capacity; the molecular structure of the organic compound is very stable, and when the organic compound is applied to the organic electroluminescent device, the efficiency of the device can be improved, the service life of the device can be prolonged, and the working voltage of the device can be reduced.