5 results about "Phenylglycidyl ether" patented technology

This invention relates to the field of resin technology, specifically to an epoxy resin composition for copper-clad laminates and its preparation method. The epoxy resin composition comprises, by weight, 500-700 parts of bisphenol A type epoxy resin, 50-70 parts of phenyl glycidyl ether, 30-50 parts of dodecyl glycidyl ether, 20-40 parts of dicyandiamide, 3-7 parts of 2-ethyl-4-methylimidazole, 800-1000 parts of modified spherical silica filler, and a solvent. The key lies in the partial end-capping of the silica surface, followed by the sequential construction of a bimodal siloxane brush layer, a reactive layer with epoxy functional groups, and a fluorinated brush layer. Then, an epoxy ring-opening anchoring aminopropyl isobutyl polysilsesquioxane cage and an aminopropyl-terminated polydimethylsiloxane are used, followed by final end-capping. This composition effectively solves the problems of poor filler dispersibility and high interfacial polarity under high filler conditions, significantly reduces dielectric loss, and improves electrical performance stability and lamination density under humid and hot environments.

This invention relates to the field of polymer materials technology, and discloses a reprocessable epoxy-based glass polymer material and its preparation method. The material comprises bisphenol F epoxy resin, phenyl glycidyl ether, triethylenetetramine, 1,4-phenylenediboric acid, and anhydrous zinc chloride or anhydrous ferric chloride. In the system, bisphenol F epoxy resin and triethylenetetramine crosslink to form a rigid main framework; phenyl glycidyl ether introduces suspended segments to reduce steric hindrance; 1,4-phenylenediboric acid constructs a dynamically covalent network with interface reconstruction; and metal salts form a physical coordination network that inhibits segment slip at room temperature. The preparation method includes steps such as prepolymerization, azeotropic dehydration condensation, metal coordination, and phase separation precipitation hot pressing. This invention constructs an epoxy-boronate hybrid network, enabling the material to possess high elastic modulus and fracture strength at room temperature, while allowing for pulverization and reprocessing through topological exchange of dynamic bonds under heating conditions at 100°C.

The application relates to the technical field of cables, and discloses a high-wear-resistance overhead insulated cable which comprises a core, an isolation layer and an outer protective layer arranged in sequence from inside to outside; the outer protective layer comprises the following raw materials: a ternary ethylene-propylene rubber, a macromolecular resin, reinforcing fillers, an anti-aging agent, a flame retardant, a dispersing agent, a plasticizer, a vulcanizing agent, a vulcanizing active agent and a vulcanizing accelerator; the reinforcing fillers comprise modified calcined clay and sericite; the modified calcined clay is obtained by modifying calcined clay with N-(beta-aminoethyl)-gamma-aminopropyl trimethoxysilane and phenyl glycidyl ether. The technical scheme can solve the problem of insufficient wear resistance of the outer protective layer of the overhead insulated cable in the related art.

This invention discloses a drilling fluid filtration reducer and its preparation method. Using natural corn starch as raw material, a one-step simultaneous modification process is employed, adding propylene oxide, tri(1,2-epoxy)propyl ether, C14-C18 alkyl glycidyl ether, and phenyl glycidyl ether in a single step to simultaneously achieve hydroxypropylation, controlled crosslinking, and hydrophobic association modification. This invention introduces hydroxypropyl groups, crosslinking bridges, and hydrophobic groups onto starch molecules through synergistic ring-opening grafting of polyepoxy groups, forming a comb-like structure of a hydrophilic backbone and hydrophobic side chains. The crosslinking bridges enhance the thermal stability of the molecular chain, and the hydrophobic groups form an associative network at high temperatures, significantly improving temperature resistance and filter cake strength. This method is suitable for deep and ultra-deep wells with high-temperature, high-salinity formation water-based drilling fluids.