5results about How to "Good chemistry" patented technology

The present invention relates to the technical field of security features comprising markers by means of surface enhanced Raman spectroscopy (SERS) and the detection thereof. Furthermore, the present invention relates to the field of UV-Vis curable security inks comprising SERS tags, said inks being used for printing security features on substrates, in particular security documents or articles, wherein the ink comprises i) one or more surface enhanced Raman spectroscopy (SERS) tags, ii) one or more vinyl ether-containing compounds, iii) one or more cationic radiation-curable compounds different from the one or more vinyl ether-containing compounds of ii), and iv) one or more cationic photoinitiators that are hexafluorophosphates.

The invention discloses a polyurethane resin modified acetic acid-propionic acid emulsion as well as a preparation method and application thereof, and belongs to the technical field of emulsions for glass fibers. The emulsion is prepared from the following raw materials in parts by weight: 200 to 300 parts of butyl acrylate, l70 to 210 parts of vinyl acetate, 10 to 15 parts of methacrylic acid, 8 to 15 parts of dimethyl ester, 5 to 10 parts of polyurethane resin, 5.0 to 6.0 parts of nonionic emulsifier, 4.0 to 5.0 parts of anionic emulsifier, 0.5 to 1.5 parts of initiator, 0.4 to 0.9 part of sodium bicarbonate and 350 to 400 parts of water. The preparation method comprises the following steps: (1) weighing the raw materials; (2) heating, stirring and dispersing the nonionic emulsifier, the anionic emulsifier and part of water to obtain a pre-emulsion; and (3) firstly stirring butyl acrylate, vinyl acetate, methacrylic acid, dimethyl ester and polyurethane resin, then adding the rest water and sodium bicarbonate, continuously stirring, heating, adding an initiator for reaction, finally dropwise adding the pre-emulsion, keeping the temperature and cooling to obtain the water-based adhesive. And polyurethane is used for modification, so that the water resistance and the heat resistance of the modified glass fiber are improved, and the modified glass fiber has excellent performance when being used on the glass fiber.

The application belongs to the technical field of new energy materials, and specifically discloses an inorganic halide solid electrolyte, a preparation method thereof and a full solid battery. The application first grinds and mixes LiCl, InCl3 and HfCl4 under a protective atmosphere to obtain a mixture; keeps the protective atmosphere, and sequentially performs ball milling and tablet pressing on the mixture to obtain a precursor tablet; then vacuum seals and sinter the precursor tablet to obtain the inorganic halide solid electrolyte Li 2.7 In 0.7 Hf 0.3 Cl6. The application introduces a higher valence Hf 4+ Into the crystal lattice of Li3InCl6, generates a certain Li + Defect vacancy, and provides more migration paths for Li + Transmission. The introduction of Hf 4+ Greatly improves the ion conductivity of the solid electrolyte, and the electrochemical performance and stability of the assembled full solid battery are also greatly improved.

The application discloses a kind of preparation process of fireproof composite board with metal core material, belong to composite board technical field, the present application includes the following steps: metal substrate is obtained by coating modified polyurethane adhesive, paving organic-inorganic composite flame-retardant material, to obtain composite board material, composite board material is formed by hydraulic pressure, to obtain fireproof composite board with metal core material;The present application is to sodium dodecyl benzene sulfonate modified corn starch, improve the dispersibility of adhesive, and design the modified adhesive of multiple epoxy groups to improve the bonding strength of preparation adhesive, vinyltriethoxysilane is modified with methacrylic acid dodecafluoroheptyl ester, improve the fireproof performance of coupling agent in flame-retardant material, so that the prepared composite board material has the characteristics of adhesive viscosity uniform, large bonding strength, and the excellent fire resistance of composite board material.

This invention relates to the field of concrete reinforcing fiber technology, and particularly to a bamboo powder-reinforced polypropylene composite fiber for concrete crack resistance and its preparation method. Through an integrated process of surface chemical modification (introducing bifunctional groups), melt grafting (forming chemical anchoring), and multi-stage stretching (forming a rough structure in situ), the strong interfacial bond between bamboo powder and polypropylene and the simultaneous construction of fiber surface functions are fundamentally achieved. This method not only solves the global problem of bamboo powder easily detaching from the polymer matrix, but also ensures good rheological properties of the melt due to the minimal damage to the polypropylene backbone caused by chemical grafting. This makes it possible to subsequently prepare fine denier fibers (with diameters as low as 30 μm) through high-ratio multi-stage stretching, overcoming the technical bottleneck of traditional modification methods that struggle to balance strong interfacial bonding and high spinnability.