151 results about "Polyether polyurethane" patented technology

The invention particularly relates to colored dual-curing UV paint and a preparation method thereof. The UV paint is prepared from the following raw materials in parts by weight: 15 to 20 parts of trifunctional aliphatic polyurethane acrylic resin, 12 to 16 parts of organic silicon modified polyurethane acrylate prepolymer, 5 to 8 parts of polyether type polyurethane acrylate, 10 to 15 parts of organic silicon-acrylic hybrid resin, 4 to 9 parts of blocked isocyanate, 15 to 25 parts of diluent and 1 to 3 parts of pigment. 3-6 parts of amino modified silicon dioxide, 1-3 parts of a photoinitiator and 0.1-0.3 part of a flatting agent. According to the UV paint, the adhesion, high wear resistance, weather resistance and hydrolysis resistance of the UV paint are remarkably improved by compounding multiple resins and a processing aid, the production efficiency is improved through a dual-curing mechanism combining UV curing and thermocuring, and meanwhile, complete curing and durability of the UV paint are guaranteed; in addition, VOCs emission is greatly reduced, and the low-VOCs environmental protection requirement is met.

The utility model discloses a steel core copper conductor stainless steel wire armored combination cable for a buggy ladle, which comprises three power wire cores and a control wire core, the three power wire cores and the control wire core are uniformly distributed at intervals of 90 degrees in the circumferential direction through an X-shaped polyurethane elastomer isolation core, a central hole is formed in the central part of the X-shaped polyurethane elastomer isolation core, and a galvanized steel wire reinforced core is sleeved in the central hole; and a polyether polyurethane inner sheath layer, a Kevlar fiber inner braid layer, a stainless steel wire armor layer, a Kevlar fiber outer braid layer and a polyether polyurethane outer sheath layer are sequentially coated outside the X-shaped polyurethane elastomer isolation core. The cable is better in flexibility and structural stability, the sheath is prevented from wrinkling, the cable is prevented from being twisted and deformed, the durability and the applicability are improved, and potential safety hazards are reduced.

The invention discloses macromolecular antibacterial artificial leather and a preparation method thereof, and relates to the technical field of artificial leather preparation. The preparation method comprises the following steps: preparing zinc-loaded silicon dioxide with amino grafted on the surface and quaternized polyether polyurethane containing an epoxy group, mixing the zinc-loaded silicon dioxide and the quaternized polyether polyurethane to prepare antibacterial protection slurry, and bonding the zinc-loaded silicon dioxide and the quaternized polyether polyurethane through ring-opening reaction of the amino and the epoxy group during curing to form a cross-linked network, so as to obtain the antibacterial protection layer with antibacterial property, flexibility and wear resistance; zinc ions have an obvious inhibiting effect on bacteria such as gram-positive bacteria and gram-negative bacteria and fungi such as candida albicans, quaternary ammonium salt has an obvious inhibiting effect on influenza viruses, and the zinc ions and the quaternary ammonium salt have a synergistic effect, so that the antibacterial range of the artificial leather is wider, the inhibiting force on germs is stronger, and the antibacterial property of the artificial leather is further improved.

The invention provides premixed polyether polyol, a polyurethane composition, polyurethane foam, a preparation method of the polyurethane foam and refrigeration equipment. The combined polyether comprises a component A, the component A comprises composite modified polyether polyol, and the composite modified polyether polyol contains an alicyclic group and a star-shaped branched siloxane chain segment. The polyurethane foam has relatively high strength and relatively low heat conductivity coefficient under the condition of low density, so that the polyurethane foam can simultaneously meet the comprehensive requirements of low density, low heat conductivity coefficient and high strength.

The invention discloses a polyether polyurethane solid polymer, a preparation method thereof and application of the polyether polyurethane solid polymer in a solid electrolyte, and belongs to the technical field of polymer electrolytes and preparation of the polymer electrolytes. The problems that an existing solid polymer electrolyte is low in ionic conductivity and poor in interface stability are solved. According to the invention, polyether amine and cyclic carbonate are subjected to an in-situ polymerization reaction to synthesize a series of polyether polyurethane solid polymer electrolytes with different molecular weights and monomer proportions. The obtained polyether polyurethane solid polymer electrolyte contains rich carbamate groups, hydroxyl groups, fluorine ions and the like, and can form a strong reversible hydrogen bond network, so that the electrolyte has excellent mechanical properties, can be used as a self-supporting electrolyte membrane, and does not need an additional diaphragm. Meanwhile, a large number of dynamic reversible hydrogen bonds also enable the solid polymer electrolyte to have excellent self-healing ability, and can be self-repaired when the battery is damaged by external force in the operation process, so that the structural stability of the solid polymer electrolyte is remarkably improved.

The invention discloses a soft and light cable for ocean engineering, and belongs to the technical field of ocean engineering, a sheath adopts a double-layer polyurethane structure, modified aramid fibers are embedded between inner and outer layers of polyurethane to serve as a reinforcing layer, and the modified aramid fibers are formed by generating oxygen-containing polar groups on the surfaces of the aramid fibers through surface modification. The modified aramid fiber and the polyurethane form chemical bonding in the processing process, and the sheath is made of thermoplastic polyether polyurethane elastomer; the interface bonding strength between the sheath material and the modified aramid fiber woven material is high, different use environments can be better adapted, the inner and outer sheath structures are not easy to move, and the inner material is better protected. The sheath is made of polyurethane, and the polyurethane has high tensile strength, wear resistance and tear resistance and can bear mechanical stress and impact in the marine environment.

The invention relates to the field of sound insulation cotton, in particular to flame-retardant sound insulation cotton and a preparation method thereof. The flame-retardant sound insulation cotton is prepared from the following raw materials in parts by mass: 50 to 80 parts of polyether polyurethane, 10 to 20 parts of acrylic fiber, 1 to 5 parts of [3-(trimethoxysilyl) propyl] succinic anhydride, 5 to 15 parts of modified expanded vermiculite, 3 to 8 parts of binder, 2 to 5 parts of foaming agent, 0.5 to 3 parts of curing agent, 0.1 to 1 part of antioxidant and 0.1 to 0.5 part of initiator. According to the flame-retardant sound-insulation cotton, the sound insulation effect of the flame-retardant sound-insulation cotton is remarkably improved through multiple mechanisms of enhancing the damping performance of the material, improving reflection and scattering of sound waves, optimizing the porous structure, improving the mechanical property and stability, reducing the propagation speed of the sound waves and the like, and meanwhile the flame-retardant sound-insulation cotton has the excellent flame-retardant performance.

The disclosure provides a UV-cured sub-pad for chemical-mechanical planarization comprising (a) a (meth)acrylate monomer unit and (b) an oligomer unit selected from a difunctional (meth)acrylatecapped polyether urethane oligomer unit, a difunctional (meth)acrylate-capped polyester urethane oligomer unit, a difunctional (meth)acrylate-capped urethane oligomer unit, and a combination thereof. The disclosure also provides a polishing pad for chemical-mechanical planarization comprising a top sheet and a UV-cured sub-pad, a method of preparing the polishing pad, and an apparatus for performing the method of preparing the polishing pad for chemical-mechanical planarization.

The invention discloses wear-resistant water-based finish paint capable of resisting hand perspiration. Comprising the following components in parts by weight: 50-55 parts of a water-based acrylic dispersion containing hydroxyl functional groups, 20-25 parts of a water-based aliphatic polyether polyurethane dispersion, 15-25 parts of epoxy resin with alcoholic hydroxyl groups, 5-10 parts of water, 1-5 parts of lipoic acid, 0.3-0.8 part of a first defoaming agent, 10-25 parts of water-based titanium dioxide slurry, 0.2-0.5 part of a flatting agent, 0.5-0.8 part of a wetting agent, 0.2-0.4 part of a first dispersing agent and 0.7-4 parts of water-based color paste, 0.5 to 1.3 parts of a thickening agent; the main components are water-based materials, so that the prepared finish paint is very hydrophilic, watermarks or sweat marks are not easy to leave, the obtained ester compound is acrylate with an epoxy group and has a matting effect, the prepared finish paint can be fully matte, polyether polyurethane has excellent elasticity and flexibility, stress can be dispersed through the elasticity, and therefore abrasion is reduced, and the finish paint can be used as a water-based finish paint. And moreover, the epoxy resin with the alcoholic hydroxyl group reacts with lipoic acid to generate a reversible disulfide bond, so that the finish paint has a self-repairing capability.

The invention discloses a high-wear-resistance polyurethane material and a preparation method thereof, and belongs to the technical field of polyurethane materials.The preparation method comprises the following steps that firstly, aminated oligomerization lignin, diisocyanate and acetone are mixed and react to prepare a modified lignin prepolymer; 2, carrying out a reaction on polyether polyol and diisocyanate to prepare a polyether polyurethane prepolymer; and 3, mixing the modified lignin prepolymer with the polyether polyurethane prepolymer, and adding a chain extender for reaction to obtain the high-wear-resistance polyurethane material. The high-wear-resistance polyurethane material has excellent wear resistance. Aminated oligomerization lignin is introduced into the preparation raw materials, the rigid characteristic of an aromatic hydrocarbon structural unit of lignin is reserved, and the modified lignin prepolymer is prepared through the reaction of the aminated oligomerization lignin and diisocyanate. The prepolymer contains urea bonds (derived from the reaction of aminated oligomerization lignin and diisocyanate), and the structure and performance of the material are further optimized.

The present invention provides a method for recovering ε-caprolactam and polyether polyurethane from a material comprising nylon 6 and polyether polyurethane in a plant, wherein the plant comprises a separation section [B], a depolymerization section [C], a recovery section [D], and a purification section [E].

Sandwich panel for use in a vehicle comprising at least a core layer and two fibrous layers in contact with and firmly connected to the core layer, both sides being impregnated with polyurethane whereby the polyurethane is embedding the fibers and binding to the board material, and whereby the sandwich panel further comprises at least a polyether polyurethane foam layer fully impregnated with polyurethane and in contact and firmly connected to the outer surface of at least one fibrous layer by the polyurethane, and a skin layer on the outer surface of the polyether polyurethane foam not in contact with the fibrous layer consisting of compressed polyurethane.

The present application relates to the field of polyurethane, in particular to a kind of fluorine-free high-efficiency carbon-forming flame-retardant polyether polyurethane and preparation method thereof.Flame-retardant polyether polyurethane includes the following components by mass fraction: thermoplastic polyether polyurethane matrix 75-87 parts, halogen-free fluorine-free catalytic carbon composite flame retardant 13-18 parts, functional additive 0-5 parts.The present application realizes high-efficiency flame retardation under very low addition amount through synergistic effect of phosphorus-nitrogen flame-retardant system and catalytic carbon system, only 13-18 parts of flame retardant addition amount is needed, 0.5-3.0mm wall thickness product can reach UL1581 VW-1 highest flame-retardant grade, completely no dripping, solve the industry pain point of traditional halogen-free flame-retardant system high addition amount, thin-wall flame-retardant substandard, rely on fluorine-containing additive anti-dripping, perfect adaptation to the flame-retardant demand of thin-wall product such as electric wire and cable.

The present invention provides a process for recovering ε-caprolactam and polyether polyurethane from nylon 6 and polyether polyurethane comprising material in a plant, wherein the plant comprises a separation section [B], a depolymerization section [C], a recovery section [D], and a purification section [E].

The invention provides a method for recovering epsilon-caprolactam and polyether polyurethane from a material comprising nylon 6 and polyether polyurethane in a plant, wherein the plant comprises a separation section [B], a depolymerization section [C], a recovery section [D] and a purification section [E].

This invention belongs to the field of graphene fiber processing technology, and relates to a two-step sizing process for graphene fibers. The sizing agent used in the first sizing step is denoted as sizing agent A, and the sizing agent used in the second sizing step is denoted as sizing agent B. Sizing agent A comprises a cationic polyether polyurethane slurry, a volatile ester co-solvent, and water; sizing agent B comprises a cationic polyether polyurethane slurry, a lubricant, and water. The lubricant is one or more of the following: polyether-modified polydimethylsiloxane, polyether-modified heptamethyltrisiloxane, oxidized polyethylene wax emulsion, polytetrafluoroethylene emulsion, and polyethylene glycol monooleate. After sizing, a polyurethane film layer forms on the fiber surface, which can absorb and disperse stress, improve bundle strength, bending performance, and abrasion resistance, solve the problems of fiber breakage and flyaways, and simultaneously fill the gaps between fibers, improving electrical and thermal conductivity to meet the requirements of high-speed weaving processing.

A sandwich panel for a vehicle, comprising at least a core layer (2) and two fiber layers (7) in contact with and firmly connected to the core layer (2), both sides of which are impregnated with polyurethane, wherein the polyurethane is embedded in the fibers and bonded to the board, and wherein the sandwich panel further comprises at least: a polyether polyurethane foam layer (6) which is completely impregnated with polyurethane and in contact with and firmly connected to the outer surface of at least one fiber layer through the polyurethane; and a surface layer (5) on the outer surface of the polyether polyurethane foam (6) which is not in contact with the fiber layer (7), wherein the surface layer (5) is composed of compressed polyurethane.

The invention relates to a ternary composite modified asphalt mixture which is mainly formed by compounding mineral aggregate, asphalt, nano ceramic powder, a polyether polyurethane prepolymer, modified lignosulfonate and a chain extender according to a specific proportion. According to the mixture, performance breakthrough is achieved through a three-component synergistic strengthening mechanism, the modified lignosulfonate optimizes asphalt-aggregate interface adhesion, the polyether type polyurethane prepolymer improves the construction workability, and the nano ceramic powder enhances the high-temperature deformation resistance. The composite material obviously improves the mechanical property, high-temperature stability, low-temperature crack resistance and water stability of the asphalt pavement, and effectively prolongs the service life of the pavement. The mixture has the advantages of being wide in raw material source, low in production cost, environment-friendly, non-toxic and the like, can reduce dependence on high-quality asphalt and natural aggregate, promotes low-carbon development of road materials, has excellent pavement performance and remarkable economic and social benefits, and is suitable for highway engineering construction under various weather conditions.

The invention relates to the technical field of synthetic leather, in particular to automotive leather with high bio-based content and a preparation method thereof.The preparation method comprises the steps that ammonium polyphosphate modified chitosan and nano-montmorillonite are mixed, a hydrogen bond inhibitor is added to obtain flame-retardant composite filler, the flame-retardant composite filler, a hydrophilic copolymer, a dispersion system and a part of a polar organic solvent system are mixed, and the automotive leather with the high bio-based content is obtained. Carrying out rotating speed dispersion treatment to prepare flame-retardant pre-dispersed master batch; mixing the flame-retardant pre-dispersed master batch, the balance of polar organic solvent system and polyether type polyurethane resin to form wet-process slurry, coating the wet-process slurry on the velveteen-like base cloth layer, and feeding the wet-process slurry into a coagulating bath for phase separation to form a wet-process microporous layer; coating the release base material with the surface layer slurry, drying to form a dry surface layer, coating the bonding layer slurry, and carrying out semi-drying to form a dry bonding layer; the wet-process microporous layer and the dry-process bonding layer are subjected to hot-pressing lamination, curing treatment is performed after the release base material is separated, and the synthetic leather is obtained.According to the synthetic leather, excellent flame retardance, moisture permeability, durability and environmental protection performance of the leather for the automotive trim are achieved.

This invention discloses a polyether-type polyurethane-epoxy interpenetrating network modified emulsified asphalt, its preparation method, and its application, belonging to the field of road material technology. By weight, it comprises 100 parts emulsified asphalt, 5-15 parts waterborne epoxy resin emulsion, 3-9 parts polyether-type polyurethane prepolymer, 0.5-2 parts nanocellulose dispersion, and a curing agent. The curing agent is added at 10%-60% of the waterborne epoxy resin emulsion. The waterborne epoxy resin emulsion is composed of a mixture of waterborne epoxy resin and an epoxy resin diluent. The polyether-type polyurethane prepolymer is synthesized from diisocyanate, polyether polyol, and a catalyst. This modified emulsified asphalt addresses the technical problems of low adhesion, easy cracking at low temperatures, and poor water resistance in ordinary emulsified asphalt, as well as the high brittleness and insufficient low-temperature performance of waterborne epoxy resin emulsified asphalt.

The invention provides a foaming agent composition, premixed polyether polyol, a polyurethane composition, polyurethane foam and refrigeration equipment. The foaming agent composition comprises a foaming agent and a foam stabilizer, the foaming agent comprises bio-based cyclopentane and a CO2-based foaming agent, and the foam stabilizer comprises a bio-based siloxane-polyether copolymer. The environment-friendly property of the polyurethane foam can be improved.

The invention provides a process method for realizing one-time gold stamping and thermal transfer printing. The process method comprises the following steps: simultaneously filling hot melt adhesive ink and sublimation ink into a multi-nozzle ink-jet printer; simultaneously printing the hot melt adhesive ink and the sublimation ink on a gold stamping transfer printing film according to a set pattern; performing drying treatment; the dried gold stamping transfer printing film is attached to the fabric, and hot pressing treatment is carried out; and after cooling, removing the part, which is not adhered to the fabric, of the gold stamping transfer printing film, so as to obtain the colored printed fabric with the gold stamping effect. Wherein the sublimation ink contains one of a styrene-maleic anhydride copolymer, an acrylic polymer and acrylic modified resin, and the hot melt adhesive ink contains at least one of water-based hot melt type poly-carbon polyurethane, water-based hot melt type polyether polyurethane and water-based hot melt type acrylic resin. The whole technological process is completed at a time, the efficiency is higher, and mutual permeation of hot melt adhesive ink and sublimation ink during simultaneous printing is avoided.

The application discloses a kind of low temperature extremely cold environment under optical fiber coating detection equipment and method, belong to coating detection technical field, comprising: obtaining temperature cycle times, coating thickness, heating gradient and other detection condition data, and coating adhesion, shrinkage, cracking length and other performance data;Construct detection condition evaluation model output detection condition coefficient;Based on detection condition, coating performance analysis model is established to output performance evaluation coefficient;Combined with the content of silicon dioxide nanoparticles and polyether polyurethane data, material analysis model is output material analysis coefficient;If the coefficient exceeds the preset threshold, then determine that the coating is unqualified and generate target formulation parameters.The application solves the technical problems of coating performance quantification evaluation and formulation precise optimization under extreme environment, significantly improves detection efficiency and reliability.

An oral surgical retraction article comprises a polyester or polyether polyurethane foam sponge, or a combination thereof, that is sterilizable and has a porosity between not less than 45 pores per inch (ppi) and not more than 105 ppi and configured in size and shape for retracting a gingival flap during an oral surgery.

Provided is a solvent-free adhesive suitable for producing high-quality recycled plastics with little discoloration. The present invention provides a solvent-free two-component curable adhesive that contains a polyol composition (X) containing a polyol compound (A), and a polyisocyanate composition (Y) containing a polyisocyanate compound (C), wherein: the polyol compound (A) includes a polyol compound (A1) that has a hydroxyl value of 45-600 mgKOH / g and an average number of functional groups of 1.8-3.0; the polyisocyanate compound (C) includes a polyether polyurethane polyisocyanate (C1); and the polyol composition (X) and the polyisocyanate composition (Y) are used so that the urethane bond concentration becomes 2.0 mmol / g or greater after reaction.

The invention relates to the technical field of alkyd resin-based rusty anti-rust coatings, and particularly discloses a rusty anti-rust coating and a preparation method thereof. The on-rust anti-rust coating comprises the following raw materials: composite modified resin, an emulsifier, a filler, an anti-rust pigment and a rust conversion agent, the composite modified resin is prepared by modifying alkyd resin, coumarone resin and polyether polyurethane resin through maleic anhydride; the alkyd resin comprises the following raw materials: polyol, phthalic anhydride, terephthalic acid, soybean oil fatty acid and a high-flash-point aromatic solvent. A composite system of alkyd resin, coumarone resin and polyether polyurethane resin realizes comprehensive improvement of adhesive force, corrosion resistance, constructability and environmental adaptability through advantage complementation, and is matched with an emulsifier, a filler, an anti-rust pigment and a rust conversion agent, so that the adhesive force to a rusty substrate and the corrosion resistance of the coating are remarkably improved, and the service life of the coating is prolonged. And the method has remarkable technical economy and market application potential.

The invention relates to the technical field of lithium ion batteries, in particular to a composite electrolyte membrane and a preparation method and application thereof. The composite electrolyte membrane comprises an oxide electrolyte, polyoxyethylene, polyether polyurethane, a lithium salt and a plasticizer, wherein relative to the total weight of the composite electrolyte membrane, the proportion of the oxide electrolyte is more than 50%. The composite electrolyte membrane provided by the invention has very high ionic conductivity, and also has very high mechanical strength, flexibility and ductility.

The present application relates to the technical field of polishing pad, and discloses a white pad for rough polishing of wafer surface and a manufacturing method, which solves the problem of polishing precision decline caused by aging and wear in the prior art. A double-layer composite structure is adopted, the surface layer is a closed-cell foam structure, is used for storing polishing liquid and realizing flexible grinding, and the material comprises polyether polyurethane resin, micron-sized wear-resistant filler and anti-aging component; the bottom layer is an open-cell foam structure, is responsible for efficient chip removal and heat dissipation, and comprises polyether polyurethane resin, heat-conducting filler and structural reinforcing fiber. The manufacturing process successively passes through raw material pretreatment, layered extrusion sheet, three-roll calendering compounding, edge strengthening coating, plasma surface treatment and cutting processing. Through double-layer functional partition design and material system optimization, the present application significantly improves the wear resistance, aging resistance and heat conductivity of the white pad, can adapt to conventional and special rough polishing conditions, prolongs the service life and guarantees the polishing precision, and is suitable for industrial application.

This application discloses polyether polyols and their preparation methods, combined polyethers, polyurethane compositions, polyurethane foams, and refrigeration equipment, relating to the field of polyurethane technology. The polyether polyol is a block copolymer composed of polyoxypropylene, polycaprolactone, and polycyclohexene oxide linked by chemical bonding, wherein the polyoxypropylene acts as the front block, the polycaprolactone as the inner block, and the polycyclohexene oxide as the terminal block. This application utilizes a complementary performance mechanism among the polyether segments to achieve a polyurethane foam that combines low thermal conductivity, high strength, and low viscosity while improving its low-temperature stability.

The invention relates to the technical field of waterborne polyurethane coatings, and discloses a two-component high-wear-resistance waterborne polyurethane coating for paper package surface protection and a preparation method thereof. The water-based paint comprises the following components in percentage by adding: 20% of water-based matte polyurethane, 30% of a water-based acrylic polymer, 45% of water-based bright polyurethane, 0.5% of dimethylethanolamine, 0.3% of a water-based organic silicon defoaming agent, 1.5% of pasty ultra-high molecular weight polydimethylsiloxane dispersion liquid, 0.2% of a water-based organic silicon flatting agent, 2% of dipropylene glycol butyl ether, 0.2% of an organic tin drier and 0.2% of a Digao TEGO WET 270 base material wetting agent. And 0.4% of a polyether polyurethane associated rheological additive with 25% of active parts. The problems that a traditional paper package surface protection technology is long in degradation period, poor in environmental protection property and low in quality are effectively solved.