30 results about "Phorone" patented technology

The invention relates to the technical field of polyurethane, and discloses hyperbranched polyurethane with high tensile strength and a preparation method thereof, maleic anhydride grafted POE and hydroxyethylamine p-amino triazine compound are subjected to acylation ring opening to obtain polyhydroxy triazine crosslinked POE; the preparation method comprises the following steps: reacting isophorone diisocyanate with polypropylene carbonate glycol at first, and then reacting with polyhydroxy triazine cross-linked POE (Polyolefin Elastomer) to obtain hyperbranched polyurethane with high tensile strength. The prepared polyhydroxy triazine cross-linked POE contains more reaction sites, the reaction cross-linking degree can be improved when the polyhydroxy triazine cross-linked POE reacts with a prepolymer, the polyhydroxy triazine cross-linked POE further contains unreacted hydroxyl, amino and other strong polar groups, intermolecular hydrogen bonds are formed, in addition, the maleic anhydride grafted POE elastomer can also absorb a large amount of impact energy, and the impact strength of the polyhydroxy triazine cross-linked POE is improved. The mechanical properties such as tensile strength of the hyperbranched polyurethane are further improved.

The invention discloses a light soft polyurethane material for a soft volleyball and a preparation method of the light soft polyurethane material, and relates to the technical field of polyurethane materials. The preparation method comprises the following steps: S1, adding polyether glycol, polyester glycol and isophorone diisocyanate into acetone under the protection of nitrogen, uniformly stirring and mixing, then adding dibutyltin dilaurate, and stirring and reacting at 75-85 DEG C for 1-3 hours; s2, adding a lignin-based chain extender into the reaction system, stirring and heating to 80-90 DEG C, stirring and reacting for 1-3 hours, then adding a diamine chain extender, and keeping the temperature and stirring and reacting for 30-60 minutes; s3, finally, activated calcium carbonate is added into a reaction system, stirring and mixing are conducted for 1-2 h, acetone is removed through rotary evaporation, and the light soft polyurethane material is obtained. The light soft polyurethane material has excellent mechanical properties, ultraviolet resistance and aging resistance, and light volleyballs obtained through processing are excellent in performance and better in applicability.

The invention discloses a double-sided glass magnesium rock wool manual purification board and a preparation method thereof, belonging to the technical field of manual purification board preparation. The double-sided glass magnesium rock wool manual purification board is composed of the following components in parts by weight: 20-30 parts of modified rock wool, 30-50 parts of glass magnesium board, 10-13 parts of adhesive, and 6-9 parts of modified hydrophobic coating. Among them, the modified rock wool is prepared from 4,4'-diaminodiphenyl ether, pyromellitic dianhydride, zirconium oxychloride octahydrate, rock wool substrate and diatomite, and the modified hydrophobic agent is prepared from octafluoropentanol, isophorone diisocyanate 、 3-aminopropene, polyethylene glycol dimethacrylate and acrylic acid. The double-sided glass magnesium rock wool manual purification board prepared by this method has excellent moisture-proof performance, fire resistance and mechanical properties.

The application discloses a preparation method of a catalyst for catalyzing directional polycondensation of acetone to produce mesitylene and isophorone, and belongs to the field of catalysis technology. The catalyst is prepared by using a co-precipitation method to prepare magnesium-aluminum-zinc composite oxides, and simultaneously introducing active components and metal modified additive components in the co-precipitation process, and then drying and calcining to obtain a finished catalyst. The application realizes efficient synergistic effect of the active metal components and the additive metal components on the composite basic oxides and adjustment of the distribution of acid and base sites of the catalyst, so that the effect of co-producing isophorone and mesitylene through directional polycondensation of acetone is achieved. The catalyst prepared by the method is suitable for catalyzing polycondensation of acetone to co-produce isophorone and mesitylene, and has the advantages of simple preparation process, high catalytic activity and good stability.

The invention discloses an environment-friendly fluoride-free super-hydrophobic coating material and a preparation method thereof, and belongs to the technical field of super-hydrophobic coating materials. The preparation method comprises the following steps: mixing hyperbranched polyurethane, ethyl acetate and propylene glycol methyl ether acetate for 10-20 minutes, adding polydimethylsiloxane and octadecyl isocyanate, mixing and reacting for 60-80 minutes, adding multi-stage microspheres, carrying out ultrasonic treatment for 15-30 minutes, adding an initiator, and carrying out ultrasonic treatment for 20-30 minutes, thereby obtaining the hyperbranched polyurethane adhesive. Adding Isopar G, isophorone diisocyanate, a silane coupling agent KH-560, dibutyltin dilaurate and triethylene diamine, and stirring and dispersing for 30 to 50 minutes, so as to obtain the environment-friendly fluorine-free super-hydrophobic coating material. The environment-friendly fluoride-free super-hydrophobic coating material prepared by the invention has good super-hydrophobicity, self-repairing function and wear resistance.

The invention relates to a bio-based fabric conversion process, which belongs to the technical field of fabrics, and comprises the following steps: mixing glycerol, itaconic acid and 4-toluene sulfonic acid according to a mass ratio of (9.0-10.0): (12.5-13.5): (0.01-0.02), introducing nitrogen for protection, heating to 140-160 DEG C, carrying out melt polycondensation reaction for 2-4 hours, vacuumizing, carrying out vacuum dehydration treatment for 1-3 hours, and cooling to obtain hydroxyl-terminated hyperbranched polyester; the hydroxyl-terminated hyperbranched polyester is dissolved in anhydrous acetone, isophorone diisocyanate and dibutyltin dilaurate are added, the mass ratio of the isophorone diisocyanate to the hydroxyl-terminated hyperbranched polyester is (1.0-1.2): 1, the mixture is stirred at the constant temperature of 50-60 DEG C for a reaction for 1.5-2.5 h, an isocyanate-terminated prepolymer is prepared, and the isocyanate-terminated hyperbranched polyester-dibutyltin dilaurate copolymer is obtained. The formed flexible cross-linked network can effectively disperse stress concentration when the fibers are subjected to external force, and accumulation of stress on a single cross-linked point is avoided.

The invention relates to an isophorone diamine composition and an isophorone diisocyanate composition. The content of the hydroxy nitrile compound in the isophorone diamine composition is 0.0001 to 0.0500 weight percent, preferably 0.0001 to 0.0300 weight percent, and more preferably 0.0005 to 0.0300 weight percent. The reaction activity of the isophorone diisocyanate composition prepared from the isophorone diamine composition and polyhydric alcohols is moderate, the color number and turbidity of obtained reaction liquid are lower, and fewer residual monomers exist.

The present invention discloses a preparation method of 4-oxoisophorone. This method prepares 4-oxoisophorone by oxidizing β-isophorone, and respectively provides a reaction phase chamber for accommodating the reaction system, a gas phase chamber for caching the mixed gas and communicating with the reaction phase chamber, and a connection channel for connecting the lower part of the reaction phase chamber with the gas phase chamber. The gas phase chamber, the connection channel and the reaction phase chamber form a gas circulation channel; the reaction system includes an organic base, a catalytic system and β-isophorone, the catalytic system includes copper ions, an acid and water, and the mixed gas includes oxygen; during the oxidation process, the mixed gas enters the reaction system from the lower part of the reaction phase chamber through the connection channel, part or all of the oxygen participates in the reaction, and the gas that does not participate in the reaction returns to the gas phase chamber, and new oxygen is supplemented to the gas phase chamber to control its pressure at a preset value; on the basis of having a high conversion rate and selectivity, the present invention has no tail gas emission during the preparation process and is simple to operate.

This invention provides an energy-storing, luminescent phase-change hot-melt road marking material and its preparation method, made from the following raw materials: C5 petroleum resin, glass microspheres, silane coupling agent, polyoxymethylene, polyoxyethylene, sodium sulfate, multi-walled carbon nanotubes, expanded graphite, oligomeric dopamine, isophorone diisocyanate, tetraethylenepentamine, perhydropolysilazane, N,N,N',N'-tetramethylbenzidine, 2,8-bis(diphenylphospho)dibenzo[b,d]thiophene, silica aerogel powder, nano-titanium dioxide powder, calcium carbonate powder, barite powder, lauric acid, palmitic acid, hexadecyltrimethylammonium bromide, polyethylene glycol octylphenyl ether, dioctyl phthalate, and acetic acid. While ensuring the visibility and durability of the road markings, this invention reduces high-temperature deformation and low-temperature cracking of the hot-melt road markings, minimizes the propagation of internal cracks, increases the service life of the hot-melt road markings, and reduces maintenance and repainting costs.

This invention discloses a fluorescent probe that simultaneously distinguishes between hydrogen peroxide and glutathione. The chemical structure of the probe is as follows: This fluorescent probe ingeniously combines a 1,8-naphthalenedimide fluorophore and an isophorone fluorophore, achieving for the first time a dual-channel simultaneous detection of hydrogen peroxide and glutathione. When reacting with glutathione, it emits 500 nm green fluorescence at an excitation wavelength of 380 nm; when reacting with hydrogen peroxide, it emits 680 nm near-infrared fluorescence at an excitation wavelength of 560 nm. The two emissions differ by 180 nm, and the spectra do not interfere with each other, allowing for the selective simultaneous detection of hydrogen peroxide and glutathione. This probe exhibits excellent selectivity for detecting hydrogen peroxide and glutathione, high fluorescence quantum yield, and a large Stokes shift, showing great promise for applications in analytical chemistry, life sciences, and biomedicine.

The present invention relates to the technical field of composite films, specifically a low-reflection explosion-proof multi-layer composite film and its preparation process, which comprises a base film, an antireflection layer, and a protective layer laminated in sequence. A self-healing prepolymer, amino-functionalized composite zinc oxide, a leveling agent, and a dialdehyde-based ionic liquid are introduced to construct a low-reflection explosion-proof multi-layer composite film with a self-healing antibacterial superhydrophobic surface; an amino-terminated polydimethylsiloxane reacts with diphenylmethane diisocyanate and isophorone diisocyanate to prepare a prepolymer containing silicone, and then diaminodiphenyl disulfide is used as a chain extender, and polyether triol and perfluorooctylethanol are used as end-capping agents; titanium dioxide is first synthesized on the surface of zinc oxide, and using the hydroxyl groups on its surface, asparagine is used as a raw material to obtain amino-functionalized composite zinc oxide; a dialdehyde-based ionic liquid is introduced into the protective layer.

The invention discloses an ultralight material, a preparation method thereof and application of the ultralight material in a shoe material, and belongs to the technical field of materials.The shoe material prepared through the method comprises polyether glycol, isophorone diisocyanate, a functional chain extender, dibutyltin dilaurate, modified hollow glass beads and trifluoromethanesulfonic acid; the functional chain extender is obtained by reacting 3-hexene-1, 6-diol with phenylphosphonic dichloride and then reacting with heptamethylcyclotetrasiloxane; the modified hollow glass beads are obtained by polymerizing isoprene and 1-(4-vinyl-phenyl)-ethanone on the surfaces of pretreated hollow glass beads and then reacting with diethyl oxalate and 2-amino-5-(2-chlorphenyl)-1, 3, 4-thiadiazole; the ultralight material prepared by the invention has excellent anti-aging, flame-retardant and antibacterial properties, and has a wide application prospect in the field of shoe materials.

The invention relates to a continuous process for the synthesis of isophorone in the liquid phase by alkaline self-condensation of acetone, comprising the following successive steps: a) continuously injecting, through a tubular reactor (R), a stream of an aqueous alkali metal hydroxide solution and a stream of an organic solution comprising acetone and by-products recycled in step g), the invention relates to a method for producing isophorone, comprising the following steps: a) reacting acetone in a tubular reactor (R), followed by b) condensation reaction of acetone in the tubular reactor (R), followed by c) distillation of the reaction mixture from the tubular reactor (R), followed by d) separation of the concentrated crude reaction product from the distillation of step c), obtaining an alkaline aqueous phase and an organic phase containing isophorone, followed by e) distillation of the organic phase containing isophorone recovered in the previous step, then f) distilling the polycondensation by-products from the bottom of the column (D2) from the previous distillation, and then g) recycling the stream from the column top (D3) of the previous distillation to the tubular reactor (R), said stream comprising xylonone and / or isoxylonone.

The invention particularly relates to a self-repairing polyurethane hot melt adhesive and a preparation method thereof. The preparation method comprises the following steps: mixing polycaprolactone glycol, polycarbonate 1, 6-hexanediol ester glycol and a solvent to obtain a material A; mixing dicyclohexylmethane diisocyanate, isophorone diisocyanate and a solvent, adding a catalyst, and preserving heat to obtain a material B; mixing an end-capping reagent and a solvent to obtain a material C; mixing copper acetylacetonate and stearic acid, adding a solvent, and mixing to obtain a material D; dropwise adding the material B into the material A for reaction, then adding the material C for reaction, and then dropwise adding the material D for reaction; 2, 2 '-dithiodiethanol is added into the first mixture for a reaction, then the material D is dropwise added for a reaction, and then tackifying resin and a compatilizer are added for heat preservation; and adding a filler and silane coupling agent mixture and an auxiliary agent into the mixture II, and carrying out melt blending granulation. The hot melt adhesive has good bonding performance, self-repairing performance and solvent resistance.

The present invention discloses a highly permeable grouting material for treating seepage water diseases and a preparation method thereof, belonging to the technical field of energy-saving and environmental protection building materials. The material uses 525-type sulfoaluminate cement, fly ash, isophorone diisocyanate, polyvinyl acetate and a nano modifier as main raw materials. By optimizing the formulation ratio and preparation process, the fluidity, permeability and solidified body performance of the grouting material are significantly improved. The nano modifier enhances the compactness and interfacial bonding force of the slurry through efficient dispersion and cross-linking reactions, effectively reduces the porosity, and improves the anti-seepage performance and compressive strength. The preparation method includes steps such as raw material weighing and pretreatment, mixing reaction and temperature-controlled stirring to ensure the stability of the slurry performance and construction adaptability. The material of the present invention has low viscosity, high permeability, rapid curing, high strength and good environmental adaptability, and can be widely used in the treatment of seepage water in underground projects, with significant advantages such as convenient construction, environmental protection and economy.

The present invention relates to a continuous process for the liquid-phase synthesis of isophorone by alkaline self-condensation of acetone, comprising the following successive steps:a) continuous injection through a tubular reactor (R) of a stream of an aqueous alkali metal hydroxide solution and of a stream of an organic solution comprising acetone and by-products recycled via step g), followed byb) condensation reaction of acetone within the tubular reactor (R), followed byc) distillation of the reaction mixture obtained from the tubular reactor (R), followed byd) separation of the concentrated crude reaction mixture obtained from the distillation of step c) resulting in an alkaline aqueous phase and an organic phase containing isophorone, followed bye) distillation of the organic phase containing isophorone recovered in the preceding step, followed byf) distillation of the polycondensation by-products from the bottom of the column (D2) obtained from the preceding distillation, followed byg) recycling of the stream obtained from the top of the distillation column (D3) of the preceding step comprising xylitones and / or isoxylitones to the tubular reactor (R).

The present application relates to the preparation method of fire-retardant, light-resistant, low VOC, easily permeable water-based polyurethane coating, polytetrahydrofuran ether diol, polyol are added in the reaction container, after mixing, stirring and drying 1~2h to remove water, cooling, adding isophorone diisocyanate, dibutyltin dilaurate, stirring under the condition of 85~95℃ for 1~2h, polyurethane prepolymer is obtained; hyperbranched flame retardant is added to the polyurethane prepolymer for primary chain extension, stirring reaction, the system is cooled, dimethylol propionic acid is added for secondary chain extension reaction, cooling, adding alkyl glycoside, adding char former, stirring for 1h, adding triethylamine, adding acetone, stirring to reduce viscosity, after reducing to 25~30℃, adding water, adjusting the speed of stirrer to 2000r / min, adjusting pH to 7, adding saturated sodium bisulfite and ethyl carbamate, reacting at room temperature, filtering and precipitating, adjusting pH to 7~8, the fire-retardant, light-resistant, low VOC, easily permeable water-based polyurethane coating is obtained, the obtained polyurethane has the advantages of fire-retardancy, low VOC and light resistance.

[Problem] To provide a new fish-attracting composition and fish feed containing the same. [Solution] A fish-attracting composition containing one or more compounds selected from group A.　(Group A) 4-heptenal, 2-nonenal, 2,6-nonadienal, 2,4-decadienal, benzyl alcohol, 1-octanol, 2-ethylhexanol, amyl alcohol, 1-octen-3-ol, ethyl maltol, 2-heptanone, 2-nonanone, 1-octen-3-one, isophorone, homofuraneol, 1,5-octadiene-3-one, cyclotene, γ-butyrolactone, 2-acetyl-3-methylpyrazine, 2,6-dimethoxyphenol, 4-ethylguaiacol, paracresol, 3-ethylphenol, guaiacol, 4-allyl-2,6-dimethoxyphenol, 3-mercapto-2-pentanone

The invention belongs to the technical field of memory foam preparation, and particularly relates to a slow-rebound memory foam preparation method and system. The preparation method comprises the following steps: (1) mixing dimethylol dihydroxy ethylene urea, dimethylol ethylene urea resin, polyether glycol, isophorone diisocyanate and acetone to obtain a first mixed solution; (2) mixing sodium alginate powder, nano nickel, nano titanium dioxide and ethylene glycol to obtain a second mixed solution; (3) mixing polylactic acid and acetone, heating at 180-200 DEG C, uniformly stirring, adding the first mixed solution, the second mixed solution, polyurethane powder and a penetrant T30, continuously uniformly stirring at 180-200 DEG C, homogenizing at 180-200 DEG C for 30-40 minutes, adding sodium bicarbonate, ammonium carbonate and dimorpholinyl diethyl ether, foaming, pouring into a mold, cooling and demolding; and (4) padding the demolded memory foam in silicone oil, and drying at 60-70 DEG C to obtain the slow-rebound memory foam. The prepared memory foam is not prone to deformation and good in air permeability.

The application relates to the technical field of coatings, and discloses a preparation method of impact-resistant high-strength polyurethane coating and application of the impact-resistant high-strength polyurethane coating in stone materials. The preparation method comprises the following steps: taking tri(2-hydroxyethyl) isocyanurate, 2,2-dimethylol propionic acid, epichlorohydrin and N-benzyl ethanolamine as raw materials, and performing esterification reaction, substitution reaction and ring-opening reaction to obtain a triazine-based hyperbranched polyol. Taking phenyl dichlorophosphine and ethylene glycol as raw materials, substitution reaction is performed to obtain phenyl dihydroxy phosphine oxide. Taking polyethylene glycol as a soft segment, isophorone diisocyanate as a hard segment, phenyl dihydroxy phosphine oxide as a chain extender and the triazine-based hyperbranched polyol with a hydroxyl group as a terminal, a polyurethane emulsion is prepared, and further, the impact-resistant high-strength polyurethane coating is obtained. The polyurethane coating prepared by the application has good impact resistance, flame resistance and strength.

The invention discloses a graphene-based anticorrosive coating and a preparation method thereof, and relates to the technical field of coatings. When the graphene-based anti-corrosion coating is prepared, dimethyl dimethoxy silane, functionalized dimethoxy siloxane and 3-aminopropyl dimethoxy methylsilane are subjected to a reaction, and a functionalized siloxane oligomer is prepared; castor oil and epoxy chloropropane are subjected to a reaction, and modified castor oil is prepared; the preparation method comprises the following steps: carrying out hydrothermal reaction on graphene oxide and cerous nitrate to prepare pre-modified graphene; reacting sodium lignin sulfonate, formaldehyde and tetraethylenepentamine, and coating the pre-modified graphene with the sodium lignin sulfonate, the formaldehyde and the tetraethylenepentamine to prepare modified graphene; and uniformly mixing epoxy resin, the modified castor oil, the functionalized siloxane oligomer, the modified graphene, isophorone diamine and acetone to prepare the graphene-based anticorrosive coating. The graphene-based anticorrosive paint prepared by the invention has excellent flame retardance, corrosion resistance and self-repairing performance.

The present application relates to a kind of isophorone diamine composition and isophorone diisocyanate composition.The content of hydroxyl nitrile compound in the isophorone diamine composition is 0.0001-0.0500wt%, preferably 0.0001-0.0300wt%, more preferably 0.0005-0.0300wt%.The isophorone diisocyanate composition prepared using the isophorone diamine composition has moderate reactivity with polyols, and the reaction solution has lower color and turbidity, and less residual monomer.

This invention provides an aqueous polyurethane emulsion, its preparation method, and its application in hot stamping coatings. The preparation method of the aqueous polyurethane emulsion includes the following steps: S1, 60-70 parts of side-chain polyether polyester and 30-40 parts of hydroxyl-terminated polybutadiene undergo a vacuum dehydration reaction, followed by the addition of isophorone diisocyanate and a heat-maintaining reaction until the -NCO content reaches 8-10%; S2, the system is cooled and a disulfide chain extender, 1,4-butanediol, and acetone are added for a chain extension reaction until the -NCO content decreases to 3-5%; S3, hydroxyethyl acrylate is added to the system for an end-capping reaction until the -NCO disappears, yielding a prepolymer; S4, under shear conditions, water is added to the prepolymer for dispersion and emulsification, followed by vacuum distillation to obtain the aqueous polyurethane emulsion. This invention, through molecular structure design of aqueous polyurethane, introduces nonionic hydrophilic side chains, disulfide bonds, and hydroxyethyl acrylate, resulting in excellent elongation at break, toughness, water absorption, and wash fastness.

The invention discloses an endoplasmic reticulum targeting fluorescent probe as well as a preparation method and application thereof in viscosity detection and viscosity imaging. The preparation method comprises the following steps: mixing and stirring isophorone, malononitrile, piperidine and glacial acetic acid in absolute ethanol, heating to a reflux state, and reacting to obtain an isophorone derivative; the isophorone derivative and 4-hydroxybenzaldehyde are subjected to a condensation reaction to prepare the endoplasmic reticulum targeting fluorescent probe. The fluorescent probe has specific fluorescent response to cell viscosity change, when the viscosity is respectively in the range of 0.89-17.96 cP and 17.96-945 cP, the fluorescence intensity of the probe and the viscosity of a solution present a good linear relationship, and the fluorescent probe has endoplasmic reticulum targeting ability, can be used for detecting inflammation and viscosity imaging in an ER stress process, and also can be used for detecting viscosity imaging in an ER stress process. And the visual imaging of the viscosity of the endoplasmic reticulum in a ferroptosis-mediated acute alcohol stomach injury model can be realized.

This invention relates to a salt spray resistant and anti-aging curing coating and its preparation method, belonging to the field of coating technology. The coating includes modified epoxy resin, ternary nanocomposite filler, composite light stabilizer, hydrophobic eutectic solvent, polysiloxane-modified aromatic amine curing agent, and bio-based polyurethane curing agent. The modified epoxy resin is prepared by reacting bisphenol F epoxy resin, KH-560 silane coupling agent, and tetrabutylammonium bromide, followed by the addition of bi-terminated epoxy silicone oil, 3,3'-dithiodipropionic acid, and p-toluenesulfonic acid, and then by adding pentaerythritol phosphate and antioxidant 1010. The polysiloxane-modified aromatic amine curing agent is prepared by reacting m-phenylenediamine as a matrix, KH-560 silane coupling agent, diphenylsilanediol, and dibutyltin dilaurate. The bio-based polyurethane curing agent is prepared by reacting castor oil-modified polyol, isophorone diisocyanate, dibutyltin dilaurate, dimethylolpropionic acid, and trimethylolpropane.

Provided are a dual-gel composition, a cosmetic product prepared by using a composition in the form of an oil-in-water dual-gel, and a method for preparing the composition and its use for preparing cosmetics, in particular sunscreen cosmetics. The composition comprises a dual-gel structure including an aqueous phase gel and an oil phase gel, wherein the composition includes the following components: (1) a (C1-C2 alkyl) acrylic acid / (C1-C2 alkyl) acrylic acid C10-C30 alkyl ester copolymer as an aqueous phase thickener; (2) an oil phase thickener comprising one or more selected from the group consisting of : (i) cellulose-based materials; (ii) dextrin / inulin fatty acid esters; (iii) glutamic acid and derivatives thereof; (iv) eicosanedioic acid and derivatives thereof; (v) polyamides; (vi) isophorone diisocyanate (IPDI) copolymers or sebacic acid copolymers; (vii) crosslinked polymers containing repeating units derived from hexamethylene-1, 6-diisocyanate (HDI) and trimethylolhexyllactone; (viii) hydroxystearic acid and derivatives thereof; (ix) polybutene; (x) waxes; (xi) sorbitan esters; and (xii) sucrose fatty acid esters; (3) a polyglycerol emulsifier having an HLB value of 0 to 8; and (4) a solvent.

The present invention belongs to the field of super-slippery surface materials and discloses a super-slip polyimide surface with self-repairing properties, its preparation method and application. First, amino-terminated polydimethylsiloxane liquid (APT-PDMS) is prepared, and then PDMS is prepared using silicone oil, APT-PDMS, isophorone diisocyanate (IPDI) and terephthalaldehyde (TPAL). m IT‑oil3. Finally, the prepared PDMS m A self-healing polyimide and its resulting super-slippery surface material were synthesized through a polycondensation reaction of IT-oil3, 2,2'-bis[4-(4-aminophenoxyphenyl)]propane (BAPP), and 1,2,4,5-cyclohexanetetracarboxylic dianhydride (HPMDA). The resulting super-slippery surface exhibits self-healing, drag-reducing, and antibacterial properties.

The invention discloses a method for synthesizing phorone by using polymerization inhibitor 701 process wastewater, which comprises the following steps: concentrating the polymerization inhibitor 701 process wastewater, blending the concentrated polymerization inhibitor 701 process wastewater with an activated cocatalyst solution and a photocatalyst to a certain concentration, adjusting the pH value by using baking soda, and reacting under a certain illumination condition and gas atmosphere to finally obtain an aqueous solution containing phorone; a phorone product is finally obtained by cooling, crystallizing, filtering and repeatedly washing with a solvent and pure water; the method for synthesizing phorone through photocatalysis of triacetonamine process wastewater has remarkable advantages, light energy which is a clean energy source can be utilized for reaction, the reaction condition is mild and pollution-free, in addition, reaction is carried out at normal temperature and normal pressure, and the reaction energy consumption is greatly reduced; under the irradiation of ultraviolet light, the piperidine ring-opening reaction is realized at normal temperature and normal pressure, and the phorone selectivity reaches 80% or above; the invention provides a new industrial idea for producing phorone from 2, 2, 6, 6-tetramethylpiperidinol nitroxide free radicals through a chemical method, and has a good industrial application prospect.

The invention relates to the technical field of functional coating materials, and discloses antibacterial and waterproof leather and a preparation method thereof.The antibacterial and waterproof leather comprises a leather base material and a surface coating, and the surface coating comprises 5-15% of waterproof and antibacterial monomers and 40-60% of polytetrahydrofuran glycol derivative polymers; 20 to 35 percent of an isophorone diisocyanate cross-linked product; 3 to 8% of a 2, 5-anhydro-1-azido-1-deoxy-D-glucitol modifier, and the balance of a solvent; the waterproof antibacterial monomer is formed by grafting 2-guanidino benzimidazole and trifluoroepoxypropane through a terminal carboxyl group intermediate; the surface coating is of a gradient structure and comprises a bottom layer, a middle layer and a surface layer. The three-step gradient structure of the bottom layer, the middle layer and the surface layer is constructed, so that collaborative optimization of air permeability, mechanical strength and super-hydrophobicity is realized. The bottom layer with low solid content forms a porous buffer layer, the middle layer provides mechanical support, and the surface layer with high solid content constructs a compact protective network. Antibacterial groups are directionally distributed on an interface layer, and hydrophobic chain segments are enriched on the surface, so that the antibacterial property, the waterproof property and the flexibility are efficiently unified.

The invention discloses a flame-retardant polyurethane coating and a preparation method thereof, and belongs to the technical field of coatings. The preparation method of the flame-retardant polyurethane coating comprises the following steps: adding castor oil, polytetrahydrofuran glycol, dimethylolpropionic acid, triethylamine and acetone into a reactor, raising the reaction temperature to 55-60 DEG C, adding isophorone diisocyanate and dibutyltin dilaurate, reacting for 0.5-1.5 hours, adding phosphorus-containing polyol, and reacting for 1-3 hours to obtain a prepolymer; adding 1, 4-butanediol into the prepolymer, reacting at 55-60 DEG C for 3-5 hours, cooling the reaction system to room temperature, adding functionalized silane, and reacting for 0.5-1 hour to obtain a functionalized solution; adding an emulsifier into the functionalized solution, reacting for 0.1-1 hour, then adding an aqueous solution of the modified kaolin nanotubes at 50-60 DEG C, emulsifying and dispersing for 0.5-1.5 hours, and removing acetone to obtain the flame-retardant polyurethane coating. Not only is the excellent flame retardant property of the waterborne polyurethane ensured, but also the water resistance and the mechanical property of the waterborne polyurethane are improved.