76 results about "Aminoethyl-aminopropyl-trimethoxysilane" patented technology

The invention relates to modified bismaleimide resin and a preparation method of the modified bismaleimide resin. The method comprises the following steps of: uniformly mixing N,N'-4,4'-diphenylmethane bismaleimide, diallyl bisphenol A and N-(beta-aminoethyl)-gamma-aminopropyl trimethoxy silane in proportion under a normal temperature and normal pressure condition, reacting at 40-60 DEG C for 40-100 minutes, rising the temperature to 130-150 DEG C, reacting for 40-100 minutes while keeping stirring, carrying out vacuum debubbling so as to obtain the modified bismaleimide resin, and carrying out the curing process and the curing treatment so as to obtain cured resin. According to the method, the activity of the siloxane upamido and the unique structure are utilized for comixing / copolymerization modification with the resin, so that the process is simple and easy to control. The prepared modified bismaleimide resin is small in melting viscosity and good in solvent dissolubility; and moreover, the prepared cured resin is increased in comprehensive properties such as toughness, heat resistance, dielectric property and the like.

The invention discloses a preparation method of heat-resistant flame-retardant waterborne polyurethane. The method comprises the following steps of stirring gamma-(Trimethoxysilyl)-3-aza-hexylamine, N, N-dimethylcyolohexlemine and tetrahydrofuran, and then adding phenyl dichlorophosphate; after the reaction, obtaining a P-N-Si flame retardant; performing a heat insulation reaction on dibromoneopentyl glycol, m-phthalic acid-5-stannous octoate, and then adding the terephthalic acid, glutaric acid and trimethylolpropane; performing heating and stannous octoate, and adding dimethyl benzene until the materials are fused; performing backflow reaction to obtain polyester polyol; adding the polyester polyol and toluene di-isocyanate into a reaction device; adding 1, 4-butylene glycol after the reaction; after the reaction, adding the P-N-Si flame retardant, expansible graphite, multiwalled carbon nanotube and triethylamine; after the reaction, adding acetone; obtaining a finished product after the treatment. The preparation method of heat-resistant flame-retardant polyurethane provided by the invention has the advantages that the steps are simple; the conditions are mild; the obtained composite material has high intensity, excellent flame-retardant performance and good heat resistance.

The invention discloses a preparation method of a Cr (VI) ion imprinted material based on the surface of an MCM-41 molecular sieve. According to the method, mesoporous MCM-41 is used as a carrier, Cr(VI) ions are used as a template, N-(beta-aminoethyl)-gamma-aminopropyltrimethoxysilane is used as a functional monomer, epoxy chloropropane is used as a cross-linking agent, hydrochloric acid is usedas an eluent, and the Cr (VI) ion imprinted material based on the surface of an MCM-41 molecular sieve is prepared through a surface ionic imprinting technology. The Cr (VI) ion imprinted material based on the surface of an MCM-41 molecular sieve has the advantages of simple steps, convenience in operation, high production efficiency and the like, and has good adsorbability and selectivity for Cr(VI) ions in water.

The invention discloses environment-friendly and energy-saving UV (Ultraviolet) printing ink. The environment-friendly and energy-saving UV printing ink is prepared by mixing resin, 2,4,6 (trimethylbenzoyl)diphenylphosphine oxide, an aminoethylaminopropyl trimethoxysilane coupling agent, organic pigment, filling, a de-foaming agent and a flatting agent. The environment-friendly and energy-saving UV printing ink disclosed by the invention is high in UV light curing efficiency; the light curing time is about 5s and a post-heating process is not needed; environmental friendliness and energy saving are realized: the UV printing ink is applied to a colored crystal industry and the energy consumption is greatly reduced; and the utilization time is short, so that the energy consumption is greatly reduced. A cured film has high covering power, the rigidity of 3H and excellent wearing resistance and adhesive force; and after an adhesion test, the environment-friendly and energy-saving UV printing ink is 100% not released. The environment-friendly and energy-saving UV printing ink has excellent water resistance; a formula contains no volatile organic solvents and no irritating odor, and a screen is not plugged in a screen-printing process; and the reproducibility of screen points is good and convenience is provided for manufacturing a high-precision pattern. The environment-friendly and energy-saving UV printing ink is especially suitable for printing a glass substrate.

The invention relates to a through-hole electroplating method of a printed circuit board, comprising the following steps: grafting graphene oxide with γ-aminoethylaminopropyltrimethoxysilane to obtain a product A; making the product A adsorb active metal ions, The product B is obtained; the product B is physically adsorbed to the surface of the insulating substrate of the through-hole wall of the printed circuit board to form an adsorption layer; the adsorption layer is converted into a conductive layer through a chemical reduction process; the through-hole wall with a conductive layer is electroplated A metal layer is formed. In the present invention, graphene oxide is selected and grafted with γ-aminoethylaminopropyltrimethoxysilane. Due to the formation of high-density oxygen bond functional sites at the grafting interface, the adsorption capacity for active metal ions is effectively improved, and the conductive layer The ethylenediamine groups on the surface can effectively improve the ability to capture copper ions in the solution during the electroplating process, accelerate the mass transfer of copper ions, and facilitate the accelerated deposition of copper plating in the holes, thereby greatly enhancing the uniformity of the plating solution. Plating ability.

The invention provides an anti-cracking plastic pipe and a preparation method thereof and relates to the technical field of plastic pipe processing. The anti-cracking plastic pipe is prepared from thefollowing raw materials: polycarbonate, phenolic resin, low density polyethylene, dodecanedioic acid diester, bisphenol A cyanate ester, o-chlorophenyl isocyanatecarbon, carbon fiber, nano silicon dioxide, ethyl cellulose, a compatilizer, diphenyl methane diisocyanate, hexamethyl phosphoryl triamine, a composite antioxidant, epoxy ethane, castor oil, a plasticizer and gamma-aminoethyl aminopropyltrimethoxysilane. The preparation method mainly comprises steps of base material mixing, raw material pretreatment, auxiliary material treatment, booster mixing, mixing and forming, and the like. Byadopting the anti-cracking plastic pipe, defects of the prior art can be overcome, the anti-oxidation performance of the plastic pipe can be improved, the plastic pipe can be prevented from cold and heat cracking, the mechanical properties of the plastic pipe can be improved, and the service life of the plastic pipe can be prolonged.