657 results about "Thiokol" patented technology

The invention provides a novel polynorbornene anion exchange ionomer containing a polar functional group as well as a preparation method and application of the novel polynorbornene anion exchange ionomer. The polynorbornene has excellent thermal stability and chemical stability. Meanwhile, the AEI main chain of the polynorbornene has no aryl group, so that the adsorption influence caused by the aryl group is avoided. The synthesized addition polynorbornene AEI in the form of quaternary ammonium salt can be dissolved in a low-boiling-point solvent, and it is ensured that a membrane electrode can be prepared through a solvent casting method. Besides the solubility of the AEI, the addition polynorbornene-based AEI in the form of quaternary ammonium salt is modified by utilizing a thiol-ene click reaction, an anion exchange ionomer containing a polar functional group can be prepared, the interaction between the AEI and an electrolytic catalyst is improved, the reaction is simple and easy to operate, the universality is high, and the method is suitable for industrial production. And the current density in the AEMWE system containing the AEI can be effectively improved.

The invention discloses a high-reliability PbS quantum dot film, a preparation method thereof and a photoelectric device. The preparation method comprises the following steps: 1) obtaining a first quantum dot solution; 2) adding medium-chain and long-chain amine; 3) adding an anti-solvent; 4) obtaining medium-chain and long-chain amine modified PbS quantum dot solids; 5) obtaining a second quantum dot solution; (6) forming a PbS quantum dot coating; 7) forming a mercaptan solution; 8) coating the PbS quantum dot coating with a mercaptan solution; (9) annealing treatment; 10) forming a new PbS quantum dot coating, and coating the new PbS quantum dot coating with a mercaptan solution; according to the PbS quantum dot thin film and the preparation method thereof, through the induction and synergistic effect of halogen atoms, the binding capacity of halogenated mercaptan ligands and the surface of the PbS quantum dot thin film is enhanced, the surface defect state of the PbS quantum dots is effectively inhibited, and the reliability of the PbS quantum dot thin film and a photoelectric device under the conditions of high temperature, high humidity and long-time illumination is remarkably improved.

The invention discloses a preparation method of a polymer dispersed liquid crystal holographic grating with s polarization high diffraction characteristics, and belongs to the technical field of holographic optics. Raw materials comprise 60-90% of a thiol-ene monomer, 10-40% of liquid crystals, a photoinitiator accounting for 1.25% of the mass of the monomer, and a coinitiator accounting for 1.56% of the mass of the monomer. Light with the wavelength of 532 nm and the light intensity of 5-30 mW / cm < 2 > is used for carrying out double-interference photoetching to generate photochemical reaction so as to generate the polymer grating film, and the light is s polarized light. Under the optimal recording condition, delta n under s polarization can reach 1.93 * 10, and delta n under p polarization can reach 1.21 * 10. In combination with morphology analysis, it is found that refractive index modulation strongly depends on the proportion of a liquid crystal-rich phase to a polymer-rich phase in the grating. It is proved that the size of liquid crystal microdroplets formed by holographic recording is larger due to low recording intensity, and therefore the threshold driving voltage of the HPDLC grating is reduced.

The invention discloses a phosphorus-sulfur synergistic flame retardant with high gas phase activity, a durable flame-retardant nylon fabric and a preparation method of the flame-retardant nylon fabric, and relates to the technical field of flame-retardant nylon fabric preparation.The preparation method of the phosphorus-sulfur synergistic flame retardant comprises the steps that 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and polyepoxide are mixed and heated to be molten for a reaction, and the phosphorus-sulfur synergistic flame retardant is obtained; obtaining an intermediate after the reaction is finished; the intermediate and a thiophenethiol derivative are subjected to a click chemical reaction, and a 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivative containing phosphorus and sulfur is obtained; the preparation method comprises the following steps: dissolving a 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivative containing phosphorus and sulfur into a mixed solvent of ethanol and water, so as to obtain the phosphorus-sulfur synergistic flame retardant with high gas phase activity. The raw materials are safe and environmentally friendly, the preparation method is simple, and the prepared flame-retardant nylon fabric is excellent in flame retardance and washing resistance and free of pollution in the using process.

The invention provides a method 100 for separating different polymeric spectacle lens materials in a mixture comprising at least two different polymeric spectacle lens materials by separating at least one polymeric spectacle lens material of the at least two different polymeric spectacle lens materials by using their different physical behavior and / or chemical behavior, wherein the at least two different polymeric spectacle lens materials are selected from the group consisting of polyallyl carbonate, polyurea, polyurethane, polyurethane / polyurea, polycarbonate, polyepisulfide and polythiourethane. The invention further provides a method for separating at least one polythiourethane from a mixture comprising at least two different polythiourethanes by thiolysis.

The invention relates to a method for constructing a composite super-hydrophobic coating through double bonding. The preparation method comprises the following steps: taking a clean copper sheet which is not pretreated as a substrate, dipping the copper sheet in a suspension consisting of nanoparticles and sulfydryl-containing siloxane ethanol, taking out, washing, drying, dipping in a perfluoromercaptan ethanol solution, taking out, washing, and drying to obtain the copper-based super-hydrophobic surface coating. The coating prepared by the method has excellent super-hydrophobicity, icing resistance and stability. Different from an existing conventional preparation method, the method has the advantages that pretreatment operation such as abrasive paper polishing, strong acid etching or anodic oxidation does not need to be carried out on a copper sheet, and micro-nano roughening and low-surface-energy self-assembly can be completed on the copper surface only through two-step normal-temperature dipping. The method is simple in preparation process, mild in condition, free of expensive equipment, thin in coating thickness and small in influence on electric conduction and heat conduction of the copper substrate, intrinsic performance of copper can be reserved, the electric conduction / heat conduction characteristic of the copper substrate is considered, and the method has wide application value and prospects.

The invention belongs to the technical field of biomedical materials and regenerative medicine, and relates to collagen-based injectable fiber hydrogel as well as a preparation method and application thereof. According to the injectable fiber hydrogel, methacrylated collagen and dithiothreitol are subjected to a thiol-ene click reaction rapidly under the action of a photoinitiator through illumination, a primary cross-linked network is formed, and the injection and in-situ gel forming requirements are met; then under the conditions that the pH is 6.5-8.0 and the temperature is 30-39 DEG C, collagen molecules are self-assembled into a nanofiber structure, and a bionic network similar to a natural extracellular matrix is obtained. The hydrogel disclosed by the invention has the advantages of rapid gelation, structural biomimetic property and biological activity; residual sulfydryl endows the hydrogel with active oxygen scavenging capacity, so that oxidative stress can be relieved, and immune response can be regulated; the fibrotic structure promotes cell adhesion, migration and tissue regeneration.

The invention relates to the technical field of electrolyte, in particular to a thioether cross-linked solid polymer electrolyte membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: taking N, N-dimethylformamide, respectively adding 3, 6-dioxa-1, 8-octane dithiol and triglycidyl isocyanurate, and uniformly stirring to obtain a mixed solution; adding bis (trifluoromethylsulfonyl) imide lithium into the mixed solution, putting magnetons on a magnetic stirrer, and completely dissolving the magnetons to obtain a precursor solution; and pouring a proper amount of the precursor solution into a polytetrafluoroethylene mold, spreading, and carrying out cross-linking polymerization in a blast oven to form the film. The three-dimensional thioether cross-linked network structure has a large number of weakly coordinated thioether groups, dissociation of lithium salt can be promoted, a large number of free Li < + > is generated, the number of Li < + > is increased, meanwhile, the crystallinity of a polymer is remarkably reduced, the ionic conductivity is improved, the mechanical stability of a film can be improved, and the service life of a battery is effectively prolonged.

The invention discloses a high-refractive-index photo-thermal dual-curing optical adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials, and the preparation method comprises the following steps: S1, preparation of high-refractive-index resin: placing biphenyl-4, 4 '-dithiol in a nitrogen atmosphere reaction kettle, adding a free radical thermal initiator, heating to 180-200 DEG C, reacting for 1-2 hours, and cooling to room temperature to obtain the high-refractive-index resin; dropwise adding alkenyl resin under the protection of nitrogen, stirring, reacting for 1-2 hours after dropwise adding, and cooling to room temperature to obtain high-refractive-index resin; s2, preparation of the optical adhesive: mixing the alicyclic epoxy resin, the high-refractive-index resin, the toughened resin, the liquid epoxy resin, the cationic photoinitiator and the cationic thermal initiator, and uniformly stirring in a dark place to obtain the adhesive. The problems that a traditional optical adhesive is poor in optical performance stability and unbalanced in mechanical and optical performance are solved. The application potential of preparing the high-performance optical adhesive is realized.

This invention relates to the field of battery technology, and more particularly to a method for improving the air stability of sulfide solid electrolytes. The method includes the following steps: mixing the sulfide solid electrolyte with a solvent to form a slurry one; mixing a thiol with a solvent to form a slurry two; simultaneously spraying slurry one and slurry two into the center of a mixing device equipped with a drying device, and drying them under the drying device, thereby improving the air stability of the sulfide solid electrolyte. This invention, by spraying the sulfide solid electrolyte and thiol, causes them to collide under a certain airflow, thereby allowing the thiol's mercapto groups to coordinate with metal cations or exposed sulfur vacancies on the surface of the sulfide solid electrolyte, forming stable thiols or complexes, thus achieving the effect of particle coating or partial coating of the sulfide solid electrolyte.

A composition for printing a three-dimensional siloxane structure includes a siloxane monomer having at least one silane functional group, a chain transfer agent, a hydrosilylation catalyst, a radical initiator, and a photo-oxidizing agent.

Materials for use in a 3D printer, including: several metal particles with an average cross-sectional length of less than or equal to 100 nm; and a stabilizing material comprising an organoamine, carboxylic acid, thiol and derivatives thereof, xanthogenic acid, polyethylene glycols, polyvinylpyridine, polyvinylpyrrolidone or a combination thereof; the metal particles and the stabilizing material agglomerate to form particles with an average cross-sectional length of about 1 µm to about 250 µm.

A coating composition includes: (a) a polymeric resin including hydroxyl functional groups; (b) a polyisocyanate crosslinker; (c) a thiol including at least 2 active hydrogen groups, where the active hydrogen groups include a thiol group or a combination of a thiol and a hydroxyl group; and (d) a tin-based catalyst. The ratio of the number of moles of thiol to the number of moles of tin in the coating composition is less than or equal to 100:1 and the amount of (d) the tin-based catalyst is less than or equal to 0.25% by weight relative to the total resin solids, and / or the ratio of the number of moles of thiol to the number of moles of tin ranges from 3:1 to 50:1 and the amount of (d) the tin-based catalyst is less than or equal to 0.4% by weight relative to the total resin solids.

A mineral-filled acrylic resin system for the production of molded bodies, comprising a radically polymerizable (meth)acrylate binder system, an initiator system and mineral fillers, characterized in that the system comprises at least one thiol-containing compound with functionally dampened crosslinking effect and a polymerization-compatible calcium hydroxide additive system, wherein both the crosslinking effect and the basic effect are spatially and functionally homogenized.

The application provides a dithiol modified copolymer and a preparation method and application thereof, and particularly relates to the technical field of lithium batteries. In the dithiol modified copolymer, the copolymer is a branched diene-vinyl pyridine copolymer, which is mainly obtained by copolymerization of branched diene and vinyl pyridine. The dithiol modified copolymer provided by the application has a main chain composed of flexible branched diene units, which endows the copolymer with a good elastic skeleton structure; vinyl pyridine is introduced as a functional monomer, so that a pyridine group is formed on the side chain of the copolymer; a dithiol compound introduces a thiol group (-SH) to the copolymer, and finally, the dithiol modified copolymer has a flexible main chain structure, and the side chain simultaneously contains a pyridine group and a thiol group, and has good elasticity and functional characteristics.

Techniques are provided for encapsulating one or more superconducting devices of a quantum processor (100). For example, one or more of the modalities described herein include a method comprising depositing an adhesion layer (402) onto a superconducting resonator (102) and a silicon substrate (104) that are part of the quantum processor. The superconducting resonator may be located on the silicon substrate. Furthermore, the adhesion layer may be composed of a chemical compound with a thiol functional group.

This invention discloses a polyurethane-based photocurable resin lens and its preparation method, relating to the field of optical resin lens technology. It is prepared from the following components in parts by weight: 30-40 parts of fluorosilicone block polyurethane acrylate oligomer, 10-20 parts of polythiol, 1-3 parts of photoinitiator, 0.05-0.1 parts of red pigment, 0.05-0.1 parts of blue pigment, 1-3 parts of additives, 0.5-2.5 parts of functional additives, 20-30 parts of reactive diluent, and 5-8 parts of other monomers; wherein the other monomers are 1,6-hexamethylene diisocyanate and 3,9-divinyl-2,4,8,10-tetraoxaspiro[5.5]undecane compounded in a mass ratio of (3-5):1. This lens, through optimized formulation, achieves a synergistic improvement in optical performance, mechanical properties, and environmental resistance.

The invention relates to the technical field of ultraviolet curing coatings, and discloses a rapid acrylic plate coating process based on a nano-composite coating, which comprises the following two steps of: 1, irradiating by using deep ultraviolet light with the wavelength of 254-310 nanometers, triggering a photoinduced base generator to catalyze ammonium bicarbonate to decompose, and then, carrying out irradiation by using ultraviolet light with the wavelength of 254-310 nanometers; the decomposition reaction of ammonium bicarbonate generates gas in situ to form a physical oxygen barrier layer, the endothermic effect inhibits the temperature rise, and the product ammonia gas can also catalyze the thiol-Michael addition reaction on the surface of the coating to form a chemical oxygen sealing layer; 2, a UVA-LED lamp with the wavelength of 395 nanometers is used for irradiation, main body free radical polymerization is efficiently initiated, and deep curing of the coating is achieved. Through the synergistic effect of physical oxygen isolation and chemical oxygen sealing, ultra-fast and defect-free curing can be achieved in the air without nitrogen protection, thermal damage to a thermosensitive base material is avoided, and the service life of the coating is prolonged. And the obtained coating has high hardness and high adhesive force.

A composition is described comprising an epoxy resin that is a liquid at 25°C; an epoxy resin comprising constrained aromatic rings; an epoxy curative comprising at least two thiol groups; and a photobase. The composition is suitable for use as a coating, structural adhesive, or molded part. Also described are methods and articles.

The polythiol composition according to an exemplary embodiment includes a tetrafunctional polythiol compound and a parapolythiol compound, the parapolythiol compound comprising C 13 H 28 S9 represents compounds and compounds derived from C 15 H 32 S 10 The compounds are indicated. The proportion of parapolythiol compounds, as measured by high-performance liquid chromatography (HPLC), ranges from 1% to 5%. By adjusting the content of parapolythiol compounds, optical products with excellent transmittance and optical properties can be manufactured.

The application belongs to the technical field of polymer materials and engineering, and discloses a preparation method of a phosphate cross-linked organic porous uranium extractant. A phenylacetylene is cross-linked with 1,4-dithioerythritol through a click chemistry reaction by using a photo-induced cross-linking method. Compared with common mercaptans, 1,4-dithioerythritol contains an adsorption group. The cross-linking reaction is carried out under the condition that the ratio is 1:3 and the light irradiation time is 1h. An organic polymer PCM with a porous structure is synthesized. After the synthesized polymer is subjected to Soxhlet extraction for 48h, the polymer is modified by phosphating with phosphorus oxychloride to prepare a porous polymer containing a phosphate group. After the synthesized polymer is subjected to Soxhlet extraction for 48h and is dried, a purple black powder P-PCM is obtained. The target polymer can be synthesized only through three steps of reactions. The polymer preparation is relatively simple under the photo-induced cross-linking, which is of great significance to improving the uranium adsorption capacity. The preparation is simple, the reaction is stable, the safety is high, and the cost is low through the click chemistry reaction.

The invention belongs to the field of polymer composite materials, and relates to a polyimide aerogel coating material as well as a preparation method and application thereof. The invention provides a preparation method of a polyimide solution, which comprises the following steps: efficiently and quickly carrying out a catalyst-free thiol-alkynyl click polymerization reaction on a dithiol monomer and a diyne monomer under mild conditions to construct a uniform polymer network and obtain a high-uniformity polyimide dilute solution; and then forming a three-dimensional porous aerogel structure through coating, solvent exchange and normal-pressure drying. The prepared aerogel coating material can be used as an aerogel composite coating, a fireproof heat insulation fabric, a heat preservation fireproof coating, a heat management interface material and the like to be applied to the fields of new energy, special protective clothing, building heat insulation and fire prevention, electromagnetic shielding and the like. According to the method, the production process is simplified, the application range of the polyimide aerogel coating in a multifunctional composite material is widened, and the continuous production process of the polyimide aerogel coating is promoted.

Conventional two-component resin compositions containing a crosslinkable silyl group-containing organic polymer and an epoxy resin have problems, such as long gel times due to slow reaction times, resin dripping when used on surfaces other than flat surfaces, and long tack times for preventing an adherend from moving during processes. The present disclosure addresses the problem of providing a two-component resin composition having excellent gel time and compatibility at 25°C. The problem is solved by a two-component resin composition containing the following components (A) to (E). Component (A): an epoxy resin. Component (B): a chelate-based metal catalyst. Component (C): a crosslinkable silyl group-containing organic polymer. Component (D): a polyether skeleton-containing thiol compound. Component (E): an amine compound. (Components (A)-(E) are not silane coupling agents.)

The application discloses a PVC / ABS alloy and a preparation method thereof, and belongs to the technical field of polymer materials. The product uses organic maleimide derivatives and a specific acid absorber component compounded with a thiol methyl tin to jointly serve as a heat stabilizing component. The product can significantly improve the heat stability, can still maintain low discoloration under a processing environment of up to 200 DEG C, and can also maintain sufficient impact resistance, and has excellent comprehensive performance.

The present invention relates to the technical field of surface modification of silica, and more particularly to silica hollow sphere with a MOF composite layer and method for preparing the same. The silica hollow sphere comprises: a hollow spherical structure made of silica, an amino-silane layer covalently grafted onto the surface of the core layer, a ZIF-8 crystal layer grown in situ with amino groups serving as nucleation sites, and thiol groups distributed on the outer surface of the MOF crystals. The purpose of the present invention is to provide silica hollow sphere with a MOF composite layer and method for preparing the same. The silica hollow sphere with the composite layer exhibits good compatibility and stability in an LCP matrix, while maintaining low dielectric loss, thereby effectively improving the performance of high-frequency FPCs.

The application discloses a kind of plasmonic superlattice film functionalized SERS nanocapillary, preparation method and application, it is related to nanomaterials and biochemical analysis field, the SERS nanocapillary is prepared using following method: S01 with nanoscale tip's capillary is soaked in mercaptopropyl trimethoxysilane methanol solution and is modified with surface mercapto;S02 injects perfluorodecyl mercaptan n-hexane-ethanol solution into gold nanoparticle solution, obtains gold nanoparticle superlattice film at water-oil interface, gold nanoparticle superlattice film is transferred to the surface of capillary obtained in step S01, and is prepared after washing;The above preparation step is simple and efficient, after the surface modification of the prepared plasmonic superlattice film functionalized SERS nanocapillary redox response Raman molecule, can be used for the detection of a variety of oxidation-reduction molecules and single-cell oxidation-reduction state, and detection sensitivity is high, stability and repeatability are good.

The invention discloses a bio-based electrophoretic paint cross-linking agent composition S1. The bio-based electrophoretic paint cross-linking agent composition S1 comprises the following components: a bio-based polyol component; an isocyanate component; the catalyst comprises an organic bismuth or zinc catalyst; the solvent comprises propylene glycol methyl ether acetate or bio-based propylene carbonate. The electrophoretic paint cross-linking agent composition S2 comprises the following components: a cyclic carbonate monomer; a polyene polyamine; a thiol-ene click chemical reagent; an end-capping reagent and an organic tin catalyst component. An electrophoretic paint composition is prepared from the bio-based electrophoretic paint cross-linking agent composition. The invention provides a polyisocyanate cross-linking agent taking castor oil and bio-based polycarbonate diol as raw materials and a carbamate cross-linking agent prepared from cyclic carbonate and polyene polyamine, and the polyisocyanate cross-linking agent and the carbamate cross-linking agent have the following advantages that the bio-based content is greater than or equal to 60%, and the consumption of petroleum resources is reduced; the curing temperature is not more than 140 DEG C; vOC emission is reduced by more than 30%; and the adhesion, salt fog resistance and other properties of the coating reach or exceed those of a traditional system.

The invention belongs to the technical field of electronic packaging materials, and particularly relates to silver colloid, a preparation method thereof and a semiconductor device. The silver colloid comprises silver particles, epoxy resin, a curing agent and a coupling agent; wherein the curing agent comprises phenolic resin and a thiol curing agent, and the thiol curing agent contains at least two sulfydryl groups. The sulfydryl of the thiol curing agent reacts with part of epoxy groups before phenolic hydroxyl groups of phenolic resin at a low temperature, a silver powder network is preliminarily stabilized through the bonding effect of the sulfydryl and the silver powder, and an initial cross-linked network with toughness is formed. After the temperature is continuously increased, the phenolic resin reacts with the remaining epoxy groups, and a main body curing reaction is started to construct a high-strength and high-crosslinking-density three-dimensional network, so that the structural strength and the heat resistance are improved. And the compact three-dimensional network can more stably wrap the silver powder particles stacked at high density, so that the quality of a conductive path under high silver content is ensured, and the mechanical bonding strength of an adhesive layer is remarkably improved.

Discloses an aqueous antimicrobial coating composition comprising: (A) a polymer obtained by a multistage polymerisation and composed of: 75% to 95% of a first-stage polymer and from 5% to 25% of a second-stage polymer; wherein the first-stage polymer comprises: monoethylenically unsaturated functional monomers carrying at least one functional group selected from a carboxyl, carboxylic anhydride, sulfonic acid, amide, sulfonate, phosphoric acid, phosphonate, phosphate, or hydroxyl group (e.g. acrylic acid, acrylamide); <1.0% of a monomers bearing imidazole, benzotriazole, or benzimidazole; and monoethylenically unsaturated nonionic monomers (e.g. alkyl acrylate); wherein the second-stage polymer has MW=8000 to 30000 g / mol and comprises: residues of C6-C24 alkyl thiol (e.g. dodecyl mercaptan); monomers bearing imidazole, benzotriazole, or benzimidazole (e.g. vinyl imidazole); and monomers of alkyl acrylate; wherein the monomers bearing imidazole, benzotriazole, or benzimidazole in a multistage polymer are present at a total concentration of 0.5% to 8%; and (B) 1 to 10000 ppm of a silver, wherein the mol ratio of monomers bearing imidazole, benzotriazole, or benzimidazole to silver is greater than 4; and (C) <500 ppm of coagulum (coagulates having diameter>44 micrometers); and a method of preparing such aqueous antimicrobial composition and a coating composition comprising such aqueous antimicrobial composition and a pigment.

A composition is provided comprising an organic ionic compound comprising at least one C = C double bond, a polythiol compound comprising a plurality of thiol groups, and a bridging compound comprising a plurality of C = C double bonds. A composite material, a method of forming the composite material, and an electrochemical device comprising the composite material are also provided.