5results about How to "Simple components" patented technology

This invention belongs to the field of metal rust prevention technology, specifically relating to an environmentally friendly water-based rust-preventive composition, its preparation method, and its application. The composition comprises, by weight, 3-8 parts of a first triazine compound, 1-5 parts of a second triazine compound, 10-20 parts of 2-amino-2-methyl-1,3-propanediol, 2-5 parts of dipropylene glycol monomethyl ether, and 65-85 parts of water. The first triazine compound is a triazine compound having substituents containing hydrophobic segments and at least two aminocarboxylic acid substituents, and the second triazine compound is a triazine compound having thiol substituents. This invention forms a dual-anchored protective film on the metal surface through the two triazine compounds, exhibiting excellent salt spray resistance, damp heat resistance, and film density. It achieves a salt spray test duration of 72 hours, a damp heat test duration of 960 hours, and an adhesion rating of 0. Furthermore, it is free of nitrites, phosphates, and heavy metals. The preparation method is simple, suitable for industrial production, and can be widely applied to metal rust prevention in machinery manufacturing, automotive parts, and other fields.

This invention relates to an iron polyphenol nanocapsule, its preparation method, and its applications. The nanocapsule is prepared from raw materials containing ferric salts, ferric ions, and gossypol via a microfluidic chip. The iron polyphenol nanocapsule containing gossypol-ferric ions-ferric ions prepared by this invention using a microfluidic chip as a reactor exhibits uniform size and good stability. It can achieve co-delivery of dual chemotherapy drugs, T1 magnetic resonance imaging, and trimodal combined therapy of tumors (chemodynamic therapy / dual-channel chemotherapy / immunotherapy), showing potential applications in cancer diagnosis and treatment.

This invention provides a highly conductive copper paste that cures in an air atmosphere, its preparation method, and its applications, belonging to the field of conductive paste preparation technology. The highly conductive copper paste comprises: 60-80% conductive copper powder; 3-10% polymer resin; 1-3% curing agent; 3-10% first solvent; 1-5% additives; and 7.5-17% particle-free conductive copper ink. The copper salt precursor in the particle-free conductive copper ink is dissolved in the form of copper ions in a mixture of its complexing agent and second solvent. When the highly conductive copper paste is heated and cured in an air atmosphere, the copper ions in the particle-free conductive copper ink are reduced in situ to nano-copper particles, which form welded connections between the conductive copper powder particles, constituting a conductive network composed of micron-sized conductive copper powder and in-situ generated nano-copper weld points. The highly conductive copper paste of this invention has low manufacturing cost, high conductivity, and the potential for room temperature dormancy and heat-triggered decomposition.

This invention discloses a method for measuring gravity gradient based on an elastic beam. The steps include: constructing two identical measurement units, each unit comprising an angle measuring instrument, an elastic beam, and a mass block. The mass block is positioned at the tail end of the elastic beam, and the fiber optic loop of the angle measuring instrument is positioned on the mass block. The mass of the elastic beam is much smaller than the mass of the mass block. When measuring the diagonal component Γ in the i-direction of the gravity gradient... ii During measurement, the first ends of the two elastic beams are fixedly connected to a base, and the elastic beams in the two measuring units are placed parallel and symmetrically along the i-direction; the distance between the two mass blocks and the axis of symmetry is h; then the diagonal component Γ is calculated using the formula. ii When performing the off-diagonal component Γ in the gravity gradient ji During measurement, the elastic beams in the two measurement units are placed end to end along the j direction.

The application discloses a detection reagent and a detection method for fermentation power and acid production capacity of Daqu, and relates to the technical field of analysis and detection. The detection reagent comprises a sugar composition and an acid. The sugar composition is composed of glucose, maltose and sucrose, and the mass ratio of the glucose, the maltose and the sucrose is (4-18):(1-5):(0.1-1). The acid is at least one selected from acetic acid and lactic acid. The detection reagent of the application comprises glucose, maltose, sucrose and acid, and the acid is at least one selected from acetic acid and lactic acid. The application simplifies the components of the detection reagent, has the advantages of safe components, controllable safety, strong applicability and wide coverage, and makes the evaluation of the fermentation power and the acid production capacity of Daqu more accurate and efficient.