125 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 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].

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].

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.

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 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.

The invention discloses premixed polyether polyol for continuous production of LNG (liquefied natural gas), polyurethane foam and a preparation method of the premixed polyether polyol. The premixed polyether polyol comprises the following raw materials in parts by weight: 80-105 parts of composite polyol; 3-5 parts of a nano reinforcing agent; 2-4 parts of a composite catalyst; 2-4 parts of a foam stabilizer; 20-30 parts of a physical foaming agent; 1.0-2.0 parts of a chemical foaming agent; and 20-30 parts of a flame retardant. The polyurethane foam comprises the combined polyether and polymerized diphenylmethane diisocyanate, and is prepared by mixing the combined polyether and the polymerized diphenylmethane diisocyanate according to a certain proportion. According to the low-temperature-resistant, low-thermal-conductivity and high-strength polyurethane foam for the LNG, the combined polyether reacts with the isocyanate, and through the synergistic effect of the high-functionality polyether polyol, the polyester polyol and the nano reinforcing agent, the low-temperature-resistant, low-thermal-conductivity and high-strength polyurethane foam for the LNG can be continuously produced; the density is uniform; the heat conductivity coefficient is low; and the strength is high.

The application discloses an anti-aging and anti-corrosion power cable structure and belongs to the technical field of power cables. The cable comprises, from inside to outside, an anti-corrosion conductor layer, a conductor shielding layer, a nano-composite insulation layer, an insulation shielding layer, a water-blocking and anti-corrosion buffer layer, an armored protection layer and a double-layer anti-aging sheath layer. The anti-corrosion conductor layer adopts a tinned copper stranded wire or an aluminum alloy stranded wire; the nano-composite insulation layer takes cross-linked polyethylene or ethylene-propylene rubber as a matrix; the water-blocking and anti-corrosion buffer layer is composed of an intumescent water-blocking tape and an asphalt-based anti-corrosion paste; the armored protection layer adopts a duplex stainless steel tape or a galvanized aluminum alloy tape; and the double-layer anti-aging sheath layer is co-extruded by an inner layer of high-density polyethylene and an outer layer of polyether polyurethane. The application remarkably improves the anti-aging, salt-fog resistance, acid and alkali resistance and electrical insulation performance of the cable through the multi-layer composite protection and nano-modification structure, and prolongs the service life of the cable in harsh environments such as coastal areas, chemical industries and underground acid and alkali soils.

The present application relates to the technical field of composite floor manufacturing, and particularly relates to a light-weight high-strength composite floor and a manufacturing method thereof. The manufacturing method of the light-weight high-strength composite floor comprises the following steps: Step 1, uniformly mixing sawdust, fibers and silicon dioxide aerosol to obtain a solid mixture; uniformly mixing polyurethane A glue, epoxy resin and a curing agent to obtain a mixed solution; uniformly mixing a polyether polyurethane into the mixed solution to obtain mixed glue A; uniformly mixing the mixed glue A and the solid mixture to obtain A glue mixture; uniformly mixing polyurethane B glue and the A glue mixture to obtain a pressing mixture; Step 2, performing shaping and heat treatment on the pressing mixture to obtain the light-weight high-strength composite floor. The present application is simple in method, and raw materials are easy to obtain and easy to be prepared in large-scale industrialization. The composite floor prepared by the method has the performance of light weight and high strength, and can be applied to railway flat car floors.

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 belongs to the technical field of semiconductors, and discloses an electrowetting display device and a preparation method and application thereof. The electrowetting display device comprises a bottom electrode, a bonding layer, a dielectric layer, a perfluoropolymer layer, a high-pixel wall structure and a top electrode which are sequentially laminated, the high pixel wall structure is filled with ink. The material composition of the bonding layer is selected from at least one of polyether polyurethane, aliphatic isocyanate polyurethane and diphenyl dihydroxy silane, and the thickness of the bonding layer is 15-25 nm. The bonding layer is arranged between the dielectric layer and the bottom electrode, the leakage current and the equivalent capacitance of the electrowetting display device provided with the bonding layer are lower than those of a device without the bonding layer, the aging electrical property test result is excellent, the bonding force between film layers can be effectively increased by arranging the bonding layer, and the structural defects of the device are reduced.