1535 results about "Hydroxymethyl" patented technology

The invention relates to the technical field of PET optical film coatings, in particular to a coating liquid for a PET optical film coating and a preparation method of the coating liquid. The coating liquid for the PET optical film coating is prepared from the following preparation raw materials in parts by mass: 20 to 25 parts of polyurethane acrylic resin, 10 to 15 parts of N-hydroxymethyl acrylamide, 1 to 2 parts of a coupling agent, 4 to 6 parts of a photoinitiator, 8 to 10 parts of modified nano titanium dioxide, 0.2 to 0.3 part of an ultraviolet light absorber and 40 to 47 parts of a reactive diluent. The coating liquid for the PET optical film coating prepared by the invention is excellent in adhesive force, weather resistance, scratch resistance, light transmittance and the like, and has a wide application prospect.

The invention discloses unsaturated polyester resin for an unmanned aerial vehicle fuselage and a preparation method of the unsaturated polyester resin, and relates to the field of high polymer materials. When the unsaturated polyester resin for the unmanned aerial vehicle fuselage is prepared, a flame-retardant monomer reacts with 2-hydroxy-5-(hydroxymethyl) benzaldehyde to prepare a modified flame-retardant monomer; reacting cellulose with acrylic acid to obtain pre-modified cellulose; the pre-modified cellulose, 1-allyl-1, 1, 3, 3-tetramethyldisiloxane and chloroplatinic acid are subjected to a reaction, and modified cellulose is prepared; maleic anhydride, 5-(1H-imidazole-1-yl)-1, 3-phthalic acid, propylene glycol and the modified flame-retardant monomer are subjected to a reaction, and pre-polyester is prepared; and stirring the pre-polyester, zinc chloride, modified cellulose, benzophenone peroxide and styrene to obtain the anti-aging coating. The prepared unsaturated polyester resin for the unmanned aerial vehicle fuselage has good anti-aging, self-repairing, flame-retardant and self-cleaning performance.

The present invention relates to a preparation method of an intelligent self-repairing, flame-retardant and light-resistant water-based polyurethane coating. The method comprises the following steps: preparing a self-made hyperbranched flame retardant and using it in the synthesis of a polyurethane prepolymer; cooling the mixture to 58° C., adding 2,2-dimethylolpropionic acid, reacting the mixture for 1 to 2 hours, adding 1 to 2 parts of a disulfide compound, reacting the mixture for 1 to 2 hours at 60 to 80° C., adding 1 to 2 parts of a hydrogen bonding agent, reacting the mixture for 1 hour at 60 to 80° C., adding 0.5 to 1.5 parts of a coumarin derivative, and reacting the mixture for 60 to 90° C. The mixture was stirred for 1-2 hours, and then spiropyran, diethanol monoisopropanolamine, and 0.01 parts of p-toluenesulfonamide were added, and the mixture was reacted at 50°C for 30 minutes. The temperature was lowered to 40-45°C, and 1-2 parts of triethylamine were added, and the mixture was reacted for 1-2 hours. The mixture was cooled to room temperature, and 60-65 parts of water were added. The mixture was stirred at a speed of 1800-2000 r / min for 0.5-1 hour to obtain an intelligent self-healing, flame-retardant, and light-resistant water-based polyurethane coating. The flame retardancy and self-healing properties of the obtained water-based polyurethane were significantly improved.

The preparation method comprises the following steps: mixing 20-40 parts by mass of substituted hydroxymethyl glycoluril, 45-85 parts by mass of mercaptocarboxylic acid and 0.5-3 parts by mass of an acidic catalyst, stirring and reacting for 1-10 hours at the temperature of 50-150 DEG C under the pressure condition of-0.01 to-0.1 MPa, adding 300-800 parts by mass of an organic solvent for diluting after the reaction is finished, washing and purifying with deionized water, and collecting an organic layer, thereby obtaining the mercaptan curing agent. Concentrating and drying to obtain the mercaptan curing agent. According to the thiol curing agent, the rigid glycoluril group is introduced, so that the rigidity of a cured product structure is improved, and the mechanical property, the adhesive property, the heat resistance and the damp-heat aging resistance of a cured product are improved; four tertiary amine groups in the substituted glycoluril have a certain self-promotion effect on a thiol curing epoxy reaction, and the curing reaction temperature is reduced under the condition that an accelerant is not added; the glycoluril-containing thiol epoxy resin curing agent disclosed by the invention has good application value and development prospect.

The invention discloses self-adhesion-crosslinking double modified bamboo powder, a preparation method and application, and relates to the technical field of composites.The preparation method of the modified bamboo powder comprises the following steps that S1, bamboo powder, 2, 5-dihydroxyterephthalic acid, 4-aminobenzoyl hydrazine, N, N '-diisopropylcarbodiimide and tris (hydroxymethyl) aminomethane are mixed for a reaction; and S2, trimesic acid is added into the solution obtained after the reaction in the S1 for a reaction, filtering, washing and drying are conducted, and the self-adhesion-crosslinking double modified bamboo powder is obtained. The prepared modified bamboo powder is green and environmentally friendly, through a self-adhesion mechanism, a cross-linking mechanism, a branched-chain phenyl heterogeneous nucleation mechanism and the like, the interfacial compatibility of PBAT and the bamboo powder and the crystallinity of PBAT are improved, and therefore the mechanical property of PBAT / bamboo powder is enhanced.

The invention discloses a coating type high-molecular flame-retardant material. The composite material is prepared from the following components: organic silicon modified epoxy resin, a bio-based castor oil derivative, hydroxyapatite, carbon nanofibers, expanded graphite, ammonium polyphosphate, zinc borate, nano silicon dioxide, molybdenum oxide, microencapsulated red phosphorus, magnesium hydroxide, melamine cyanurate, aluminum diethylphosphinate, pentaerythritol, trihydroxymethyl phosphine oxide and a silane coupling agent. The coating is prepared from a titanate coupling agent, stearic acid, polyethylene glycol, 2, 6-butylated hydroxytoluene, triphenyl phosphite, 2, 4-dihydroxybenzophenone, sebacic diester, polytetrafluoroethylene micro powder, a modified polydimethylsiloxane flatting agent, organic montmorillonite, a polyether modified silicon defoaming agent and a solvent. The invention has the beneficial effects of high flame retardant efficiency, environmental friendliness, excellent comprehensive performance and excellent processability.

The invention relates to a hyaluronic acid-polyurethane composite material based on a double dynamic network and a preparation method and application thereof, and the preparation method comprises the following steps: carrying out hydrophobic modification reaction on hyaluronic acid and aminophenylboronic acid to obtain aminophenylboronic acid modified hyaluronic acid; the preparation method comprises the following steps: mixing polytetrahydrofuran ether glycol, polyethylene glycol and isophorone diisocyanate, carrying out a primary reaction, adding trimethylolpropane tri (3-mercaptopropionic acid) ester, carrying out a secondary reaction, adding tannic acid, and carrying out a third reaction to obtain tannic acid-terminated dynamic thionocarbamate polyurethane; and mixing the amino phenylboronic acid modified hyaluronic acid with the tannic acid terminated dynamic thionocarbamate polyurethane for reaction to obtain the hyaluronic acid-polyurethane composite material with the double dynamic networks. Compared with the prior art, by introducing a'thionocarbamate-borate 'double-dynamic network, high toughness, high strength, good self-repairability and repeatable processability in an extreme environment are realized, and the material is particularly suitable for manufacturing and repairing of key components in an LNG ship body and a heat insulation system thereof.

The invention relates to a preparation method of a flame-retardant, high-refraction and melt-drop-resistant water-based polyurethane coating, which comprises the following steps: adding dihydric alcohol, isocyanate and dibutyltin dilaurate into a 500mL flask, heating to 70-85 DEG C, and stirring to react for 1-2 hours to obtain a polyurethane prepolymer; adding a charring agent into the polyurethane prepolymer, and continuously reacting for 1-2 hours; cooling to 60 DEG C, and then adding 2, 2-dimethylolbutyric acid and amino carbon nanotubes to react for 0.5-1 hour; adding a high-refraction material, reacting at 65-70 DEG C for 1-2 hours, cooling to 40 DEG C, adding triethylamine, and reacting for 0.5-1 hour; the preparation method comprises the following steps: adding deionized water, adding an ammonium polyphosphate solution at a rotating speed of 2000r / min, and carrying out high-speed shearing emulsification for 0.5-1h to obtain the flame-retardant, high-refraction and melt-drop-resistant polyurethane coating which has the advantages of high flame retardance, high refractive index and no melt drop.

The present invention generally relates to novel pharmaceutical formulations containing 2-[3,5-Bis(trifluoromethyl)phenyl]-N-{4-(4-fluoro-2-methylphenyl)-6-[(7S,9aS)-7-(hydroxymethyl)hexahydropyrazino[2,1-c][1,4] oxazin-8(1H)-yl]-3-pyridinyl}-N,2-dimethylpropanamide, methods of preparation thereof and their use in medical therapy.

The invention relates to a rapid detection kit for large yellow croaker pyramidal worm, and belongs to the field of pathogen biological diagnosis in aquaculture. The kit comprises a nucleic acid releasing agent and further comprises a primer and a probe which are used for detecting the large yellow croaker pyramidal worm. The kit comprises a nucleic acid releaser; the formula of the nucleic acid releasing agent comprises tris (hydroxymethyl) aminomethane hydrochloride with the final concentration of 100 mM, sodium chloride with the final concentration of 100 mM, sodium dodecyl sulfate with the final concentration of 1 wt%, sodium alpha-olefin sulfonate with the final concentration of 3 wt%, sodium lauroyl glutamate with the final concentration of 1.2 wt%, betaine with the final concentration of 1 wt% and water as a solvent. The sequences of the primer and the probe for detecting the Pseudosciaena crocea pyramidal are 5 '-TATGGGCAATTCTGAATCCT-3', 5 '-TCTTTTCTGATCCCTGAAT-3' and 5 '-FAM-GTCGGTGGAGTGATTTGTTTG-3'. The kit disclosed by the invention is simple to operate, provides a tool for diagnosis, prevalence monitoring, prevention and control of the Pseudosciaena crocea pyramidal, and has a very high application value.

The invention discloses high-performance anti-wear engine lubricating oil as well as a preparation method and application thereof. The high-performance anti-wear engine lubricating oil is prepared from the following raw materials: self-developed lubricating oil base oil, poly-alpha-olefin, zinc dialkyl dithiophosphate, calcium sulfonate, polyisobutylene succinimide, an antioxidant, polymethacrylate, an organic molybdenum complex, a de-foaming agent and a pour point depressant. The preparation method comprises the following steps: 1) synthesizing 9, 10-bis (2-tert-butyl-4-methylphenoxy) trimethylolethane stearate as base oil of the lubricating oil; and 2) mixing the base oil with other assistants to obtain the high-performance anti-wear engine lubricating oil. According to the preparation method, novel-like synthetic ester oil is firstly prepared, a phenol group and a large steric hindrance substituent group are introduced into a polymer, the anti-oxidation function is directly built in base oil molecules, meanwhile, super-strong heat resistance is achieved, and finally the high-performance anti-wear engine lubricating oil is obtained and can be applied to high-end application scenes such as aero-engines or gas turbines.

The invention discloses a halogen-free low-splashing environment-friendly solder wire and a preparation method thereof, and relates to the technical field of electronic welding materials, and the halogen-free low-splashing environment-friendly solder wire is prepared from the following raw materials in percentage by mass: 1-4wt% of halogen-free scaling powder and the balance of lead-free solder; the lead-free solder is composed of the following components of Cu, Bi, Al, Ga, Ir, Ca, In and Sn. The halogen-free scaling powder comprises the following components: (3, 6-diamino acridine-9-yl) boric acid, glycerol triabietate, 3-(N-morpholinyl)-2-hydroxy propanesulfonic acid sodium salt, 3-trihydroxymethyl methylamino-2-hydroxy propanesulfonic acid, hexahydro-1, 3-ethoxy-s-triazine, a functional copolymer, a surface active agent, a corrosion inhibitor, a halogen-free activity reinforcing agent, an antioxidant, a solvent and rosin resin. The solder wire is low in splashing rate, high in surface resistivity and welding spot reliability, free of obvious corrosivity and good in weldability.

The invention relates to the field of fabrics, in particular to a metallic yarn fabric based on a discontinuous aluminum layer and a processing technology thereof.The metallic yarn and polyester fibers are blended to serve as warps, the polyester fibers serve as wefts, the warps and the wefts are interwoven to obtain base cloth, the base cloth is subjected to discontinuous etching in the warp direction through etching liquid, and the pretreated base cloth is obtained; transferring the fabric into antibacterial finishing liquid for padding treatment to prepare the fabric. Modified waterborne polyurethane emulsion containing silicon and nitrogen elements is introduced into finishing liquid, polytetrahydrofuran glycol, hydroxyl-terminated polydimethylsiloxane and isophorone diisocyanate are used as raw materials, 2, 2-bis (hydroxymethyl) propionic acid is used as a hydrophilic chain extender, and cyanuric chloride derivative glycol based on menthol is used as a chain extender; the preparation method comprises the following steps: introducing nano zinc oxide as a finishing agent into a finishing liquid, firstly aminating the nano zinc oxide by using 3-aminopropyltriethoxysilane, then obtaining phytic acid modified nano zinc oxide by using electrostatic and hydrogen-bond interaction, and further grafting cyanuric chloride derivative diol based on menthol.

The present invention provides for novel methods for regulating and detecting the cytosine methylation status of DNA. The invention is based upon identification of a novel and surprising catalytic activity for the family of TET proteins, namely TET1, TET2, TET3, and CXXC4. The novel activity is related to the enzymes being capable of converting the cytosine nucleotide 5-methylcytosine into 5-hydroxymethylcytosine by hydroxylation.

The invention belongs to the technical field of hot melt adhesive processing, and particularly relates to a quick-drying polyurethane hot melt adhesive and a preparation method thereof. The preparation method comprises the following steps: mixing polyether polyol, isocyanate, a chain extender A, a chain extender B, a crystallization promoting agent, a surface drying promoting agent and an auxiliary agent, and carrying out extrusion granulation, wherein the chain extender A is obtained by carrying out a reaction on acrylamide and diethanol amine and then carrying out siloxane modification on the reaction product by utilizing methacryloyloxymethyltrimethoxysilane; and the chain extender B is obtained by reacting tetrakis hydroxymethyl phosphonium sulfate and barium hydroxide octahydrate and oxidizing by hydrogen peroxide. The prepared hot melt adhesive has better viscosity and also has a certain flame-retardant effect.

The present invention provides for novel methods for regulating and detecting the cytosine methylation status of DNA. The invention is based upon identification of a novel and surprising catalytic activity for the family of TET proteins, namely TET1, TET2, TET3, and CXXC4. The novel activity is related to the enzymes being capable of converting the cytosine nucleotide 5-methylcytosine into 5-hydroxymethylcytosine by hydroxylation.

The invention relates to the technical field of biological detection, and discloses a mycoplasma pneumoniae nucleic acid rapid detection method, which comprises the following steps: mixing a sample to be detected with a multifunctional pretreatment buffer solution containing tris (hydroxymethyl) aminomethane, potassium acetate, polyethylene glycol, saponin, spermine tetrahydrochloride and tris (2-carboxyethyl) phosphine hydrochloride, and carrying out cracking treatment; a cracking mixed solution is obtained; redissolving the enzymatic isothermal amplification basic reagent, the specific primer and the probe to obtain a redissolving amplification system; sucking the supernatant of the cracking mixed solution, adding the supernatant into a redissolving amplification system, and adding a magnesium acetate solution to obtain a reaction mixed solution to be detected; and carrying out isothermal amplification and signal acquisition to obtain a detection conclusion. The multifunctional pretreatment buffer solution is used for cracking the to-be-detected sample, sample liquefaction, cracking and nucleic acid release are completed in a single system, the nucleic acid extraction and purification step of centrifugal column adsorption or magnetic bead elution is avoided, and the operation process is simplified.

The application provides a temperature-resistant and salt-resistant wall stabilizer for a ten-thousand-meter deep well water-based drilling fluid and a preparation method and application thereof, and belongs to the technical field of drilling. The preparation method of the wall stabilizer comprises the following steps: acrylic acid is added into deionized water, the pH of the system is adjusted to 7.0, then N-hydroxymethyl acrylamide, N-[2-(3,4-dihydroxyphenyl)ethyl]-2-acrylamide, an emulsifier, octadecyl vinyl ether and a complexing agent are sequentially added into the system, shearing is performed, a monomer solution is obtained, an initiator is added into the monomer solution, and reaction is performed; after the reaction is completed, washing, drying and crushing are performed, and the wall stabilizer is obtained. The wall stabilizer has a temperature resistance of 200 DEG C and a salt resistance of saturation, has strong adsorption and high cohesion, can effectively adsorb, plug and cement micro-pores and micro-cracks of rocks, thereby consolidating the rocks, effectively enhancing the well wall stability, preventing drilling fluid leakage and providing technical support for safe and efficient drilling of deep wells.

A method for preparing exosomes is provided. The method includes preparing a human platelet, treating the human platelet with a buffer to obtain a platelet solution, centrifuging the platelet solution, and collecting supernatant of the centrifuged platelet solution to obtain an exosome solution. The buffer is calcium ion buffer, phosphate buffered saline (PBS), tris(hydroxymethyl)aminomethane hydrochloride (Tris-HCl) buffer, or 2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulfonic acid (HEPES) buffer.

According to the scheme, the expanded polytetrafluoroethylene artificial blood vessel with the anticoagulant coating and preparation and application are provided, firstly, groups such as carboxyl and amino are formed on the inner surface of the expanded polytetrafluoroethylene artificial blood vessel through co-auto-polymerization reaction of L-dopamine and polyethyleneimine in a Tris aqueous alkali, then epoxy chloropropane serves as a cross-linking agent, and the expanded polytetrafluoroethylene artificial blood vessel with the anticoagulant coating is prepared. Trihydroxymethyl methylamino propanesulfonic acid is cross-linked to the inner surface of the membrane, carboxyl and sulfonic acid groups on the surface of the membrane endow the expanded polytetrafluoroethylene artificial blood vessel with anticoagulation performance, meanwhile, the hydrophobic performance of the outer surface is reserved, anticoagulation finishing is conducted on the inner wall of the expanded polytetrafluoroethylene artificial blood vessel, and the hydrophobic performance of the outer wall of the blood vessel is reserved; the expanded polytetrafluoroethylene artificial blood vessel has an anticoagulation function and does not influence the growth of fiber cells and fiber connective tissues on the surface of the blood vessel.

The invention discloses an antistatic modified polyamide fiber and a preparation method thereof, and relates to the field of fibers. When the antistatic modified polyamide fiber is prepared, nano-silver is loaded on halloysite powder nanotubes in situ to prepare pre-modified halloysite powder nanotubes; grafting 9H-carbazole-9-formaldehyde to chitosan, and uniformly mixing the chitosan with the pre-modified halloysite powder nanotube and silver nitrate to obtain a modified halloysite powder nanotube; the preparation method comprises the following steps: reacting diethyl (hydroxymethyl) phosphate with carbazole-N-formyl chloride to obtain a functional monomer; reacting hexamethylenediamine, adipic acid, pyromellitic dianhydride and a functional monomer to prepare a modified polyamide slice; uniformly mixing the modified polyamide slices, the modified halloysite powder nanotubes, carbazole and ferric trichloride, spinning, and grafting 4-aminomethyl-2, 2, 6, 6-tetramethylpiperidine to obtain the antistatic modified polyamide fiber. The antistatic modified polyamide fiber prepared by the invention has excellent antistatic property, antibacterial property, flame retardance and aging resistance.

The invention relates to the technical field of plastic films, in particular to a preparation method of an environment-friendly plastic bag, which comprises the following steps: S1, mixing polyethyleneimine, ammonium polyphosphate and a first solvent, then carrying out primary reaction, cooling to room temperature, filtering, washing and drying to obtain a solid-phase substance; s2, tannic acid and a second solvent are mixed, tris (hydroxymethyl) aminomethane is added, the pH is adjusted to 7-9, then hydrogen peroxide is added, after a secondary reaction, the solid-phase matter is added for a third reaction, filtering, washing and drying are conducted, and a heat-resistant enhancer is obtained; s3, the modified polylactic acid, the heat-resistant enhancer and the auxiliaries are put into a high-speed mixer to be mixed to be uniform, then the mixture is added into a double-screw extruder to be granulated, then film blowing is conducted through an air blower, and the environment-friendly plastic bag is obtained. The environment-friendly plastic bag provided by the invention has excellent mechanical properties, thermal stability and ultraviolet resistance.

The invention relates to the technical field of oilfield chemistry and high-temperature and high-salt oil reservoir profile control and water shutoff, in particular to a preparation method, a product and application of polymer gel particles with enhanced mechanical properties through a double-crosslinking domain structure. The preparation method comprises the following steps: dissolving a monomer, a cross-linking agent and an initiator in water, and carrying out free radical polymerization reaction to obtain polymer hydrogel; and drying the polymer hydrogel to obtain the polymer gel particles, the monomers comprise acrylamide, acrylic acid, N-(hydroxymethyl) acrylamide and 2-acrylamide-2-methylpropanesulfonic acid; the cross-linking agent comprises methacrylic acid esterified lignosulfonate and / or N, N '-methylene bisacrylamide. The preparation method disclosed by the invention is simple, and the polymer gel particles prepared by utilizing the method have a unique double-crosslinking domain structure, have excellent mechanical properties and excellent temperature resistance and salt tolerance, and are suitable for profile control and water shutoff of high-temperature and high-salt oil reservoirs.

The invention relates to the technical field of hydrogen production catalysts, in particular to a preparation method of a supported methanol steam reforming hydrogen production catalyst. Comprising the following steps: S1, dissolving copper salt, adding indium oxide, heating in a water bath to evaporate water, drying, and carbonizing to obtain a Cu / In2O3 catalyst; s2, adding the Cu / In2O3 catalyst and tris (hydroxymethyl) aminomethane into water, then adding dopamine hydrochloride for reaction, and performing centrifugal washing and drying to obtain a precipitate; and S3, grinding and carbonizing the precipitate to obtain the nitrogen-doped carbon modified Cu / In2O3 catalyst. After the surface of the Cu / In2O3 catalyst is modified by carbon, strong electron interaction exists between carbon and metal copper, metal Cu electrons are promoted to be transferred to nitrogen-doped carbon, and the formed Cu < + > species enhance the catalytic activity for catalyzing methanol steam reforming hydrogen production and the selectivity for hydrogen.

The invention provides an Au nanocluster-Cu monatomic / titanium dioxide photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalysis. According to the invention, the Cu monatomic atom is used as a catalyst for hydrogen evolution reaction, the Cu monatomic atom and the Au nano-cluster are loaded at the same time, the Cu monatomic atom can be used as an electron transport bridge to regulate the electronic structure of the Au nano-cluster, the synergistic effect of the Cu monatomic atom and the Au nano-cluster is realized, the catalytic activity is regulated and controlled together, and efficient series connection of multi-step reaction is realized; therefore, the product selectivity can be accurately regulated and controlled; the catalytic oxidation reaction can be dynamically adjusted through carrier mediation or direct contact by virtue of the electron interaction between the Cu monatomic and the Au nano-cluster, so that the electron distribution in the catalytic process is favorably optimized, the reaction energy barrier of C-C bond breakage and hydroxymethyl oxidation is regulated and controlled, and the dynamic performance of generating GA and hydrogen through photocatalytic oxidation of EG is improved.

The invention relates to an ultra-low VOC baking type quick-drying coating and a preparation method thereof, and belongs to the technical field of coatings. The coating is prepared from the following components: composite hybrid resin, methylated melamine formaldehyde resin, neopentyl glycol diglycidyl ether, trimethylolpropane triacrylate, composite filler, zinc fatty acid, fumed silica, a silane coupling agent KH-560, aminoethyl aminopropyl polydimethylsiloxane and the like. The composite hybrid resin is prepared by adopting a special method; the composite hybrid resin is matched with methylated melamine formaldehyde resin, neopentyl glycol diglycidyl ether, trimethylolpropane triacrylate, a composite filler, zinc fatty acid, fumed silica, a silane coupling agent KH-560, aminoethyl aminopropyl polydimethylsiloxane and other components according to a certain proportion for use, and has the advantages of low VOC emission, quick drying during baking, high heat resistance, high heat resistance, high heat resistance, high heat resistance, high heat resistance, high heat resistance and the like. Meanwhile, the adhesive force is good, the hardness and the flexibility are balanced, and the chemical resistance is excellent.

The invention discloses a self-repairing high-energy-storage ice-snow-resistant double-layer composite microcapsule as well as a preparation method and application thereof, and aims to solve the technical problems that an existing microcapsule phase-change material is easy to leak, single in heat energy source and monotonous in realization function. The double-layer composite microcapsule is sequentially composed of an inner phase change microcapsule core, an inner phase change microcapsule shell, an outer self-repairing microcapsule core and an outer self-repairing microcapsule shell from inside to outside. Wherein the internal phase change microcapsule core is composed of n-caprylic acid and tetradecane; the external self-repairing microcapsule core is formed by mixing hydrophobic hexamethylene diisocyanate and a carbon nano tube; the inner phase-change microcapsule shell and the outer phase-change microcapsule shell are formed by mixing carbon nanotubes and double polymers, and the double polymers are prepared from polyvinyl alcohol and methylated hexamethylol melamine resin; the preparation method comprises the following steps: preparing an inner high-energy-storage phase-change microcapsule, adding the inner high-energy-storage phase-change microcapsule into an outer microcapsule core solution, and dropwise adding the outer microcapsule core solution into an outer microcapsule shell solution to form a double-layer composite microcapsule; the microcapsule is used for preparing a coating and can be applied to the fields of coating self-repairing and ice and snow resistance.

The invention relates to the technical field of bioanalytical chemistry, in particular to a method for simultaneously enriching and separating glycopeptides and phosphopeptides by using a bionic hydrophilic adsorbent, which specifically comprises the following steps: step 1, preparing a polyether-ether-ketone (PEEK) framework by using a fused deposition modeling method (FDM); 2, soaking the obtained PEEK framework in an aqueous solution containing dopamine hydrochloride and tris (hydroxymethyl) aminomethane, and carrying out a reaction; step 3, then, adding a mixed solution containing hyaluronic acid methacrylate, vinyl phosphoric acid, N, N-dimethyl bisacrylamide and phenyl-2, 4, 6-trimethylbenzoyl lithium phosphate into the PEEK framework; in the invention, in the aspect of material preparation, a fused deposition modeling method (FDM) is adopted to prepare a polyether-ether-ketone (PEEK) frame, and the material has good mechanical properties and chemical stability and can bear a series of subsequent complex treatment processes without being damaged.

The invention belongs to the technical field of wind power generation blade filling materials, and particularly relates to a polyurethane foam filling material for a wind power generation blade and a preparation method and application of the polyurethane foam filling material. Wherein the component A comprises the following components: polyether polyol a, polyether polyol b, polyether polyol c, polyester polyol d, a viscosity reducer, a cross-linking agent, a foam stabilizer, a catalyst, chemical foaming agent water and an auxiliary agent; the component B is polymethylene polyphenyl polyisocyanate; the polyether polyol a is polyether polyol prepared by taking enzymatic hydrolysis lignin, pentaerythritol, trihydroxymethyl melamine and propylene glycol as initiators and carrying out a reaction; the polyether polyol b is polyether polyol which is prepared by taking bisphenol A and trimethylolpropane as initiators; the filling material prepared by the invention is safe, green and environment-friendly, has the advantages of low density, high strength, better process adaptability and excellent dimensional stability, and also can provide good weather resistance.