11 results about "Polyallylamine hydrochloride" patented technology

The application belongs to the technical field of antitumor drugs, and particularly relates to an AuNRs@L / D-Ag2S QDs complex, a preparation method and application thereof. Sodium polystyrene sulfonate is electrostatically adsorbed on AuNRs to obtain 1-PSS-AuNRs; polyallylamine hydrochloride is electrostatically adsorbed on 1-PSS-AuNRs to obtain 2-PAH-AuNRs; polyallylamine hydrochloride is electrostatically adsorbed on 2-PAH-AuNRs to obtain a non-chiral nanomaterial; and the non-chiral nanomaterial is covalently crosslinked with L / D-Ag2S QDs to obtain the AuNRs@L / D-Ag2S QDs complex. The application combines the efficient photo-thermal conversion characteristics of AuNRs with the chiral-dependent targeting and potential fluorescence imaging ability of chiral Ag2S quantum dots by constructing a complex structure, so that a novel nanodiagnostic and therapeutic agent with efficient photo-thermal performance and chiral selectivity is obtained.

The invention relates to a hybrid nanocarrier system comprising engineered metal nanoparticles (MeNP), a flavonoid (Fl), a Raman-active molecule (RAM), poly(allylamine hydrochloride) (PAH), genetic material (GM), and poly(styrene sulfonate) (PSS), designed for use in fields such as gene therapy, cancer treatment, chemotherapy, treatment of genetic diseases, innovative vaccine technologies, the production of innovative antibiotics for antibacterial and antimicrobial therapies, drug delivery, the dietary supplement market, Raman imaging systems, biotechnological applications, and the agrochemical industry.

The application belongs to the technical field of layered composite film preparation, and provides an online coating high-barrier biaxially stretched polyethylene film and a preparation method and application thereof. First, polyethylene multilayer sheet is co-extruded and longitudinally stretched, and a to-be-coated base film is obtained through corona activation; then, nano clusters are constructed from phytic acid and zirconium salt, and a hybrid dispersion liquid is formed by introducing tannic acid, polyallylamine hydrochloride and epoxy silane; at the same time, sodium-based montmorillonite and colloidal silicon dioxide are compounded under the action of tannic acid and treated by silane to obtain a barrier dispersion liquid; the barrier dispersion liquid, polyvinyl alcohol, polyvinylpyrrolidone and polyhydric alcohol are prepared into an aqueous coating composition, which is coated on the base film online, dried and solidified, and then transversely stretched to obtain a film with stable oxygen and water vapor barrier properties and suitable for packaging applications.

The invention provides a temporary plugging agent and a preparation method thereof. Raw materials of the temporary plugging agent comprise resin and modified particles, and raw materials of the modified particles comprise rigid particles wrapped by composite membranes and a modifier; the modifier is a mixture containing a silane coupling agent and a film-forming agent; the composite membrane is prepared from polyethyleneimine, polyallylamine hydrochloride and nano silicon dioxide. The preparation method of the temporary plugging agent comprises the following steps: sequentially immersing rigid particles into a polyallylamine hydrochloride solution, a nano silicon dioxide dispersion liquid, a polyethyleneimine solution and a nano silicon dioxide dispersion liquid, and repeating for 20-100 times to obtain rigid particles wrapped by a composite film; mixing the rigid particles wrapped by the composite film, a silane coupling agent and a film-forming agent, and heating to obtain modified particles; and mixing the modified particles with resin, and curing to obtain the temporary plugging agent. The temporary plugging agent provided by the invention has good toughness and relatively high strength, and can be used for plugging the interior of a crack through good deformability.

The application provides an ultrasonic response piezoelectric ionic hydrogel and application thereof, and the hydrogel is formed by cross-linking and solidification of a precursor solution under ultraviolet irradiation; components of the precursor solution include a photosensitive polymer, an ionic polymer, a photoinitiator and a solvent; the photosensitive polymer includes any one or a combination of at least two of polyether F127 diacrylate, polyhydroxyethyl methacrylate, polyethylene glycol dimethyl acrylate, methacrylated gelatin or methacrylated collagen; and the ionic polymer includes any one or a combination of at least two of epsilon-polylysine, polyethyleneimine hydrochloride, polyallylamine hydrochloride, polyquaternary ammonium salt-10 or cationic guar gum. The application uses ultrasonic waves as an external remote driving signal to non-invasively and painlessly activate the piezoelectric ionic effect of the hydrogel, generate detectable periodic voltage and current signals in the hydrogel, and has excellent treatment effect on acne and infected wound repair.

The application relates to the technical field of concrete, in particular to a bridge high-performance high-anti-cracking concrete and a preparation method thereof. The concrete comprises sea sand, basalt gravel, marine portland cement, silica fume, kaolin, nano-aluminum oxide, grafted composite corrosion inhibitor carrier powder, polyvinyl alcohol short-cut fiber, light-burned / heavy-burned magnesium oxide, water reducing agent, shrinkage reducing agent and mixing water. The corrosion inhibitor carrier takes kaolin as a core, is sequentially subjected to amination, polyacrylic acid grafting, Ca 2+ The site is introduced and is ternary bridged with 1-hydroxyethylidene-1,1-bisphosphonic acid and calcium hydroxide, and then sequentially loaded with polyallylamine hydrochloride and sodium nitrite. The system can construct an anchorable and slow-releasing composite protective layer on the steel-slush interface, and can synergistically inhibit microcracks through pore structure refinement and time sequence expansion, thereby significantly improving the resistance to chloride ion penetration, delaying pitting corrosion, improving the shrinkage resistance and strength retention.

The present application belongs to the field of gel electrolyte, and discloses a hydrolysis-resistant Schiff base hydrogel electrolyte for supercapacitors, and a preparation method and application thereof. The present application utilizes the natural dissociation of polyallylamine hydrochloride in aqueous solution, and does not need to adjust the pH value, so that free amino groups can be released under acidic conditions to occur condensation reaction with glutaraldehyde, and a three-dimensional network crosslinked by Schiff base structure is obtained. The preparation method is simple, does not need organic solvent, and the reaction is controllable, and the gelation can be completed at room temperature in a short time. The obtained hydrogel electrolyte overcomes the defect that the traditional Schiff base structure is easy to hydrolyze under acidic conditions, and has excellent chemical stability. The solid-state supercapacitor assembled by using the in-situ forming capacity effectively solves the problem of poor contact between the electrode and the electrolyte, improves the conductivity, specific capacitance and energy density of the device, and has wide application prospect in the field of flexible energy storage devices.

The invention relates to a method for producing a nonwoven material suitable for removing anions which present a health hazard from an aqueous solution by modifying a surface of the nonwoven material. The method according to the invention has the steps of: a) providing a nonwoven material selected from the group comprising polypropylene, polyethylene, viscose, polyamide, polylactide, polyester, polyethersulfone, polysulfone, and polyvinylidene fluoride; b) applying a coating solution onto the nonwoven material, the coating solution containing polyallylamine hydrochloride (PAH) and / or polyhexamethylene biguanide (PHMB) as a modification reagent; c) treating the nonwoven material and the coating solution with electron radiation; and d) purifying the modified nonwoven material.

The application belongs to the technical field of clay stabilizer preparation, and particularly relates to a clay stabilizer and a preparation method thereof. The clay stabilizer is composed of the following raw materials: 1-ethyl-3-vinylimidazolium bromide, [3-(dodecyloxy)-2-hydroxypropyl] di(2-hydroxyethyl) methylammonium methyl sulfate, 3-{(dimethyl(3-trimethoxysilyl)propyl)ammonium} propane-1-sulfonate, polyallylamine hydrochloride, glycerophosphorylcholine, lauryl alcohol polyoxyethylene polyoxypropylene ether, glacial acetic acid, and the balance is deionized water. The clay stabilizer has excellent permeability and anti-swelling rate due to the synergistic effect between the raw materials.

The invention belongs to the technical field of clay stabilizer preparation, and particularly relates to a clay stabilizer and a preparation method thereof. The invention relates to a clay stabilizer. The invention relates to an environment-friendly flame retardant which is prepared from the following raw materials: 1-ethyl-3-vinyl imidazole onium bromide, [3-(dodecyloxy)-2-hydroxypropyl] bis (2-hydroxyethyl) methyl ammonium sulfate methyl ester salt, 3-{(dimethyl (3-trimethoxysilyl) propyl) ammonium} propane-1-sulfonate, polyallylamine hydrochloride, glycerophosphorylcholine, polyoxyethylene polyoxypropylene lauryl ether and glacial acetic acid. And the balance of deionized water. According to the clay stabilizer disclosed by the invention, the raw materials have a synergistic effect, so that the clay stabilizer has excellent permeability and anti-swelling rate.

The application belongs to the field of drinking water treatment and particularly relates to a sodium hypochlorite generating device, which comprises a brine tank, a sodium hypochlorite tank and an electrolytic cell in communication with the brine tank and the sodium hypochlorite tank respectively. An anode plate, a first partition plate, a selective ion exchange membrane, a second partition plate and a cathode plate are sequentially arranged in the electrolytic cell. A porous layer is arranged on the surface of the anode plate, and a high-crystalline nanoporous material obtained by reacting a metal salt with tetra(4-(aminopyrazol-3-yl)phenyl)ethylene is loaded in the porous layer. The selective ion exchange membrane is a sulfonated polyphenyl ether membrane containing sodium polystyrene sulfonate and polytriphenylphosphonium. A positively charged membrane is arranged on the surface of the cathode plate, and the positively charged membrane comprises a base membrane and a polyallylamine hydrochloride layer arranged on the surface of the base membrane. Through the synergistic effect of the anode antifouling, the cathode scale prevention and the high-selectivity ion exchange membrane, the current efficiency is significantly improved, the salt consumption and the energy consumption are reduced, and the efficient and stable preparation of sodium hypochlorite disinfectant is realized.