82 results about "Tributyl citrate" patented technology

The invention discloses an easy-to-apply single-component polyurethane waterproof coating and a preparation method thereof, and belongs to the technical field of waterproof coatings. The easy-to-apply single-component polyurethane waterproof coating disclosed by the invention is prepared from the following raw materials: polyol, a plasticizer, a solid filler, isocyanate, a catalyst and a solvent, the polyol comprises polyether glycol and polyether triol; the plasticizer comprises acetyl tributyl citrate; the catalyst comprises a bismuth neodecanoate catalyst and a dimorpholine diethyl ether catalyst. According to the easy-to-apply single-component polyurethane waterproof coating disclosed by the invention, acetyl tributyl citrate is used for replacing traditional plasticizer chlorinated paraffin, and a bismuth neodecanoate catalyst and a dimorpholine diethyl ether (DMDEE) catalyst are compounded, so that the viscosity of the waterproof coating is effectively reduced, and construction is facilitated; meanwhile, the drying speed of the waterproof coating is increased.

The invention discloses a biodegradable polylactic acid composite material and a preparation method thereof, and relates to the technical field of polylactic acid materials. The method comprises the steps that firstly, chitosan activated through hydrochloric acid is subjected to graft modification through a KH550 silane coupling agent, meanwhile, nano-zinc oxide is subjected to surface modification through stearic acid, the chitosan and the nano-zinc oxide are mixed, spray drying is conducted, and antibacterial composite powder is prepared; the preparation method comprises the following steps: performing hydrochloric acid activation and KH570 silane coupling agent modification on nano silicon dioxide, performing hydroxypropylation modification on alkali lignin, and performing reflux crosslinking reaction on the modified alkali lignin, KH570 modified nano silicon dioxide, polycaprolactone, methyl methacrylate and azodiisobutyronitrile to prepare a heat-resistant reinforcer; uniformly mixing polylactic acid, poly (butylene succinate), the antibacterial composite powder, the heat-resistant reinforcer, tributyl citrate, polyethylene glycol and talcum powder, and extruding and granulating by using a twin-screw extruder to obtain the heat-resistant antibacterial material. The composite material prepared by the invention has excellent antibacterial property, heat resistance and biodegradability.

The invention discloses a degradable express bag material and a preparation method thereof, and relates to the technical field of high polymer materials. The invention discloses a degradable express bag material. The composite material is prepared from the following raw materials in parts by weight: 40 to 50 parts of poly (butylene adipate-co-terephthalate), 20 to 30 parts of polycaprolactone, 5 to 8 parts of modified bamboo fiber, 2 to 4 parts of modified nano montmorillonite, 3 to 6 parts of tributyl citrate, 0.1 to 0.3 part of antioxidant 1076, 1 to 2 parts of iron dithiocarbamate master batch, 2 to 3 parts of maleic anhydride grafted poly (butylene adipate-co-terephthalate) and 0.3 to 0.6 part of zinc stearate. 0.1 to 0.3 part of baicalein; and 1 to 3 parts of chitosan-sorbitol composite coating liquid. According to the degradable express bag material, poly (butylene adipate-co-terephthalate) and polycaprolactone are used as main degradable raw materials, modified bamboo fibers and modified nano-montmorillonite are matched to enhance the mechanical property, an antioxidant 1076, baicalein and the like are added to guarantee the stability and functionality, temperature is accurately controlled in the preparation process, multi-step modification is adopted for optimizing component combination, and the degradable express bag material is prepared. The performance is improved through the composite coating, degradability is achieved, and good usability is achieved.

The invention discloses a high-barrier polyethylene film and a preparation method thereof, and relates to the technical field of high polymer materials. The invention discloses a high-barrier polyethylene film. The high-density polyethylene composite material is prepared from the following raw materials in parts by weight: 25 to 40 parts of high-density polyethylene, 15 to 30 parts of linear low-density polyethylene, 8 to 16 parts of ethylene-vinyl alcohol copolymer, 3 to 8 parts of nano montmorillonite, 5 to 10 parts of modified layered double hydroxide, 2 to 6 parts of nano silicon dioxide aerogel, 0.2 to 0.6 part of antioxidant 1076, 0.1 to 0.4 part of light stabilizer UV-770, 3 to 7 parts of tributyl citrate and 1 to 3 parts of octadecanamide. 1-3 parts of polyethylene wax, 0.6-1.2 parts of a silane coupling agent KH560 and 7-12 parts of a functional additive. According to the high-barrier polyethylene film disclosed by the invention, by using the modified layered double hydroxide and the functional additive, the barrier property and the antibacterial property are enhanced, the mechanical property is improved, the comprehensive performance is excellent, and the application prospect is good.

The invention relates to the technical field of polymer compositions, and particularly discloses a degradable bio-based food packaging material and a preparation method thereof.The degradable bio-based food packaging material is prepared from polylactic acid, ITA esterified bacterial cellulose, CSL-ITA esterified bacterial cellulose, polycaprolactone glycol, acetyl tributyl citrate, a photoinitiator and tocopherol; the preparation method comprises the following steps: esterifying bacterial cellulose hydrogel with itaconic anhydride, grafting with sodium copper chlorophyllin, dehydrating with gradient ethanol, and drying with supercritical CO2 to obtain modified powder; according to the preparation method, the interfacial compatibility of the bacterial cellulose and the polylactic acid is enhanced through ITA esterification, the illumination antibacterial function is given by utilizing CSL grafting, the polycaprolactone glycol and the acetyl tributyl citrate are synergistically used for toughening and improving the brittleness, the photoinitiator is added, the photoinitiator is added for mixing, and ultraviolet crosslinking curing is performed after film forming. The tocopherol protects the stability of the antibacterial structure of the CSL, the water resistance is improved through photo-crosslinking, and the material is degradable and meets the food packaging requirement.

The invention provides a heat insulation and energy storage polylactic acid-based composite material, the polylactic acid-based composite material is a three-layer composite material, and comprises a surface layer, an energy storage layer and a heat conduction buffer layer, the surface layer comprises high-crystallinity polylactic acid, mesoporous SiO2, micron hollow glass beads, nano TiO2, nano ZnO and an antioxidant 1010, the energy storage layer comprises low-crystallinity polylactic acid and phase change microcapsules, and the heat conduction buffer layer comprises a heat conduction buffer layer. The composite material comprises polylactic acid, hydroxylated carbon nanotubes, polycaprolactone, tributyl citrate and an antioxidant 1010, and the composite material comprises medium-crystallinity polylactic acid, hydroxylated carbon nanotubes and polycaprolactone. The polylactic acid-based composite material prepared by the preparation method disclosed by the invention realizes the balance of heat insulation, energy storage and mechanical properties.

The invention discloses an environment-friendly odorless sealing strip adhesive as well as preparation and application thereof, and the environment-friendly odorless sealing strip adhesive is prepared from the following components in parts by mass: 15 to 20 parts of polyacrylate resin, 10 to 15 parts of dammar resin, 5 to 10 parts of fir resin, 3 to 5 parts of hydrogenated terpene resin, 2 to 5 parts of tributyl citrate and 45 to 65 parts of n-decane. The preparation method comprises the following steps: uniformly mixing natural resin (dammar resin, fir resin and hydrogenated terpene resin), polymeric monomers (n-octyl acrylate, methyl methacrylate and hydroxyethyl acrylate) and an environment-friendly solvent (n-decane), and then polymerizing to obtain the environment-friendly adhesive. The synthetic resin (polyacrylate resin) and the natural resin are sufficiently and mutually dissolved in n-decane to form stable and uniform composite resin glue, so that the problems of health risk and environmental pollution caused by harmful solvents such as xylene in the traditional sealing glue are effectively avoided, and the characteristics of no toxicity, no odor and environmental protection of the product are realized; meanwhile, the stability and the bonding performance of the section sealing glue are improved, the matching performance of the optical transmittance and the refractive index of the section sealing glue is enhanced, and the section sealing glue has quick-drying performance and is suitable for medical pathological sections.

The invention relates to the technical field of polymer fibers, and particularly discloses an antibacterial and antistatic polymer fiber for fabric and a preparation method thereof. The antibacterial and antistatic polymer fiber for the fabric comprises the following raw materials: 40-60 parts of a copolymerized polyester base material; 8 to 12 parts of a modified UiO-66 antibacterial agent; 5-10 parts of a composite antistatic agent; 2 to 5 parts of polyether ester amide; 1 to 3 parts of tributyl citrate; 0.5 to 2 parts of erucyl amide; 0.3 to 1 part of a composite antioxidant; the modified UiO-66 antibacterial agent is obtained by modifying UiO-66 by using curcumin and a silane coupling agent. The polymer fiber has excellent antibacterial performance and antistatic performance, and can meet the use requirements of high-end scenes such as medical protection, infant home textiles and precision electronic workshop tools.

The invention relates to the technical field of waterproof gas-permeable membranes, in particular to a waterproof gas-permeable membrane with heat preservation performance and a preparation method thereof.The waterproof gas-permeable membrane with the heat preservation performance comprises a bio-based polymer, an ultraviolet light absorber, heat preservation filler, a plasticizer and a cross-linking agent.The bio-based polymer is selected from one or more of polylactic acid (PLA), polyhydroxyalkanoate (PHA) and cellulose ester; the ultraviolet light absorber is a mixture of nano-zinc oxide and nano-titanium dioxide, the thermal insulation filler is a combination of aerogel microspheres and hollow glass beads, the plasticizer is tributyl citrate or acetyl tributyl citrate, the cross-linking agent is a carbodiimide compound, and the filler is a mixture of nano-zinc oxide and nano-titanium dioxide. The materials are subjected to drying, blending, melt extrusion, stretching forming and heat treatment to finally obtain a waterproof breathable film with a heat preservation effect, and meanwhile, the waterproof breathable film also has an ultraviolet-proof function.

The invention discloses a recycled PP composite material with flame-retardant and antibacterial properties and a preparation method thereof, and relates to the technical field of recycled PP composite materials. The recycled PP composite material with flame-retardant and antibacterial properties is prepared from the following raw materials in parts by weight: 60 to 75 parts of recycled PP, 15 to 25 parts of modified magnesium hydroxide, 3 to 8 parts of modified chitosan, 2 to 5 parts of ethylene-vinyl acetate copolymer, 0.5 to 1.5 parts of silane coupling agent KH-550, 8 to 15 parts of ammonium polyphosphate, 0.3 to 0.8 part of calcium stearate, 1 to 3 parts of nano titanium dioxide and 0.2 to 0.6 part of tributyl citrate. The recycled PP composite material has the remarkable advantages that the recycled PP is used as a base material, so that the environment is protected and the cost is low; through compounding of modified magnesium hydroxide, modified chitosan and the like, the flame-retardant antibacterial coating has excellent flame-retardant and antibacterial properties; the preparation process is clear and controllable, the raw material compatibility is scientific, the compatibility of the components is good, the product performance is stable, and the application prospect is wide.

The invention relates to the technical field of bio-based degradable high polymer materials, in particular to a bio-based degradable pearl wool microcellular foaming material. The composite material is prepared from the following components in parts by mass: 70-85 parts of a bio-based polyester resin composite system of polylactic acid and poly (terephthalic acid)-butylene adipate (in a mass ratio of 60: 40-75: 25), 10-20 parts of bagasse microfibers modified by a silane coupling agent, 1.5-4 parts of a composite nucleating agent of flaky talcum powder and spherical nano calcium carbonate (in a mass ratio of 1.5: 1-2.5: 1), the bio-based plasticizer is prepared by compounding epoxidized soybean oil and tributyl citrate, the montmorillonite degradation accelerant is loaded with iron and cobalt ions (the molar ratio is 3: 1-5: 1), and the mixed foaming agent is prepared from 5-12 parts of supercritical carbon dioxide and nitrogen (the volume ratio is 60%-85%). A bio-based polyester composite system of polylactic acid and PBAT is adopted, silane modified bagasse microfibers are matched, montmorillonite loaded with iron and cobalt ions serves as a degradation accelerant, a bio-based plasticizer and the like are combined, and the composite material is prepared through a twin-screw extrusion melt blending and supercritical fluid foaming technology.

The application discloses a kind of encapsulation carrier plate and thermoplastic polyester elastomer material and preparation method, it is related to polymer material technical field.The thermoplastic polyester elastomer material includes following weight parts raw materials: 25-40 parts modified dimethyl terephthalate, 15-25 parts 1, 4-butanediol, 0.07-0.25 parts titanium acid tetraisopropyl ester, 0.25-0.5 parts antioxidant 168, 12-20 parts polytetrahydrofuran ether glycol, 8-15 parts modified 1, 4-butanediol, 1-3 parts isophorone diisocyanate, 5-10 parts basalt fiber, 2-6 parts flake graphite, 2-5 parts tributyl citrate, 1-4 parts methyl phenyl silicone resin, 2-3 parts polyolefin elastomer, 0.2-0.8 parts ultraviolet absorber UV-1577.The thermoplastic polyester elastomer uses modified dimethyl terephthalate and modified 1, 4-butanediol to improve performance, basalt fiber and flake graphite are treated by silanization to enhance compatibility, stepwise temperature control initiation process optimizes grafting uniformity, by double prepolymer melt blending, mechanical properties and stability are considered, the service life is extended by adding antioxidant and ultraviolet absorber.

The present application relates to the technical field of feed additive, and discloses a lactation-promoting functional feed for lactating sows containing high-efficiency plant lactogenic factors, which is made of the following raw materials: sodium-based montmorillonite, fenugreek extract, motherwort extract, ion intensity regulator, lysophosphatidylcholine, tributyl citrate and high-purity silicon dioxide, and is prepared through the following steps: mixing and drying sodium-based montmorillonite with the ion intensity regulator to prepare a regulation carrier; adding fenugreek and motherwort extract and mixing them by strong shearing to form an active core; atomizing and spraying a mixture of lysophosphatidylcholine and tributyl citrate on the surface of the core to form a functional layer; and finally adding high-purity silicon dioxide and mixing uniformly to obtain the feed. Through the construction of the structure with ion-pretreated montmorillonite as the core and the functional layer as the shell, the present application realizes the protection, sustained release and efficient absorption of the active ingredients, and improves the bioavailability.

The invention relates to the technical field of composite materials, and discloses a wide-angle field-of-view AR imaging nano composite material and a preparation process thereof, the wide-angle field-of-view AR imaging nano composite material comprises the following raw materials by weight: 60-80 parts of an organic polymer matrix, 10-30 parts of nano optical functional particles, and 5-15 parts of a plasticizer; the nano optical functional particle is prepared from a core functional raw material and a structure regulating agent, the plasticizer is dibutyl phthalate or tributyl citrate, and the organic polymer matrix is a mixture of one or more of polymethyl methacrylate, polystyrene or polyurethane. Through compounding of the organic polymer matrix and the specific nano optical functional particles, collaborative optimization of optical performance of the composite material in a wide-angle field-of-view AR imaging scene is realized, and core defects of imaging picture distortion and field-of-view angle limitation are overcome, so that the actual demand of AR equipment for large-range clear imaging is met.

The invention discloses a preparation method of an efficient fireproof and flame-retardant coating for wires and cables, and belongs to the technical field of wire and cable coatings. Aiming at the defects of low flame-retardant efficiency, poor high-temperature-resistant stability and insufficient environmental protection property of the existing coating, performance breakthrough is realized through an innovative formula and process design. The flame-retardant coating comprises the following components in parts by weight: 30-40 parts of acrylate resin, 20-30 parts of a composite flame-retardant system (compounded by modified magnesium hydroxide, ammonium polyphosphate and pentaerythritol phosphate according to a ratio of 5: 3: 2), 1.5-3 parts of a high-temperature-resistant modified component, 4-6 parts of an environment-friendly coalescing agent (compounded by polyethylene glycol monomethyl ether and tributyl citrate according to a ratio of 1: 1), other auxiliaries and deionized water. The preparation method comprises the steps of raw material pretreatment, stepped stirring and mixing, and grinding by a sand mill. The flame-retardant grade of the prepared coating reaches grade A, the coating is free of cracking and falling at the high temperature of 1300 DEG C, VOC is smaller than or equal to 10 g / L, no heavy metal is detected, meanwhile, the adhesive force reaches grade 1, the flexibility is larger than or equal to 0.8 mm, the problem that multiple properties are difficult to consider in the prior art is solved, and the coating is suitable for coating of various high-low voltage electric wires and cables.

The invention relates to the technical field of high polymer materials, and discloses a fully biodegradable mulching film for corn for seed production and a preparation method thereof, the fully biodegradable mulching film comprises the following components by weight: 65-75 parts of polylactic acid, 4-6 parts of modified polyester, 8-12 parts of biomass charcoal, 2-3 parts of acetyl tributyl citrate, and 0.4-0.5 part of an antioxidant 1010; the preparation method of the modified polyester comprises the following steps: synthesizing an intermediate 1 by taking 2-hydroxyadipaldehyde and hydroxylamine hydrochloride as raw materials, and then esterifying, oxidizing and curing to obtain the modified polyester. The full-biodegradable mulching film for the corn for seed production has relatively good tensile property and degradable effect.

This invention discloses an antistatic and high-toughness plastic packaging film and its preparation method, belonging to the field of polymer composite materials technology. The packaging film uses linear low-density polyethylene as the matrix resin, compounded with carbon nanotubes modified by methanesulfonic acid activation, silane coupling agent KH-570 grafting, and PEG-PLA block copolymer, supplemented with antioxidants, lubricants, and tributyl citrate. In the preparation process, the carbon nanotubes are first mildly acidified and activated, and then modified with multiple components. The raw materials are then premixed, extruded using a twin-screw extruder, and formed using casting stretching or blown film processes. This invention solves the problem of carbon nanotube agglomeration through composite modification, improving its interfacial bonding with the matrix, and reducing the surface resistivity of the resulting packaging film to 4×10⁻⁶. 7 With an Ω·cm content, it combines excellent antistatic properties with high toughness, overcoming the shortcomings of traditional carbon nanotube modified packaging films where antistatic and mechanical properties are difficult to coordinate, and is suitable for packaging fields such as food and electronic components.

This invention belongs to the technical field of oil and gas extraction, and relates to a high-deformation temporary plugging agent and its preparation method, specifically including the following steps: Step 1, preparing modified cellulose; Step 2, preparing PLA / ZnO composite; Step 3, placing TPU, tributyl citrate, modified cellulose, PLA / ZnO composite, four-arm PEG and antioxidant into a processing device in batches according to a certain ratio; Step 4, performing electron irradiation treatment to obtain the high-deformation temporary plugging agent; This invention achieves both high deformation and high strength through a multi-level synergistic design of a rigid cellulose skeleton + flexible TPU matrix + PLA microcrystalline reinforcement points, and solves the particle shedding problem through three key technologies: supercritical CO2 foaming embedding, staged twin-screw mixing, and simultaneous electron irradiation crosslinking; and establishes a green temporary plugging system by replacing toxic chemicals with bio-based plasticizers and irradiation crosslinking.

The invention relates to the technical field of medical instruments, and discloses a preparation method and application of a disposable pump infusion apparatus extension tube. Medical-grade polyvinyl chloride, a polyolefin elastomer, polyethylene glycol terephthalate, thermoplastic vulcanized rubber, an acetyl tributyl citrate plasticizer, a titanium dioxide coloring agent, a zinc-based stabilizer, a zinc stearate lubricant, an antioxidant, an erucyl amide anti-blocking agent, a chitosan antibacterial agent and a carbon fiber reinforcing agent are prepared as main raw materials; preparing a PP filter membrane, a PC joint and a PE protective cap according to the total mass use ratio of a finished product as key functional components, firstly, drying, crushing, sieving and disinfecting part of the raw materials, weighing and proportioning in a hundred-grade clean room according to a formula, mixing and plasticizing into a molten material through high-speed stirring and twin-screw extrusion, sizing and cooling after extruding a pipe blank, and assembling the functional components, so as to obtain a finished product. An on-line quality monitoring system is installed on the production line to automatically recognize and isolate unqualified products, finally, finished products are comprehensively detected, and qualified products are sterilized through ethylene oxide and then packaged in a full-sealed mode.

The present application relates to the field of textile dyeing and finishing, and discloses a low-temperature dyeing functional dye composition for elastic fabric, which comprises 18-40 parts of disperse dye, 8-22 parts of slow-release dyeing component, 3-10 parts of spandex limited dyeing protection component, 5-15 parts of dispersion stabilizing component, 2-8 parts of weak acid buffer component, 1-5 parts of low-foam permeating component and 20-55 parts of water. The slow-release dyeing component comprises free dipropylene glycol dibenzoate, free acetyl tributyl citrate and hydroxypropyl-cyclodextrin inclusion dyeing promoter; and the spandex limited dyeing protection component comprises carboxylated polyether modified siloxane and anionic water-based polyurethane dispersion. The composition is suitable for low-temperature dyeing of polyester-spandex elastic fabric, and can simultaneously achieve low-temperature dyeing of disperse dye, dispersion stability of dye bath and spandex limited dyeing protection.

This invention discloses a biodegradable polylactic acid (PLA) composite material and its preparation method, relating to the field of PLA material technology. The method includes: firstly, grafting and modifying hydrochloric acid-activated chitosan with KH550 silane coupling agent, and simultaneously surface-modifying nano-zinc oxide with stearic acid; then mixing and spray-drying the two to obtain an antibacterial composite powder; secondly, activating nano-silica with hydrochloric acid and modifying it with KH570 silane coupling agent, and hydroxypropylating modifying alkali lignin; then performing a reflux crosslinking reaction with KH570-modified nano-silica, polycaprolactone, methyl methacrylate, and azobisisobutyronitrile to obtain a heat-resistant reinforcement; finally, uniformly mixing PLA, polybutylene succinate, the antibacterial composite powder, the heat-resistant reinforcement, tributyl citrate, polyethylene glycol, and talc, and granulating the mixture using a twin-screw extruder to obtain the final product. The composite material prepared by this invention possesses excellent antibacterial properties, heat resistance, and biodegradability.

The invention relates to the field of wire harness films, and discloses an automobile wire harness film containing an environment-friendly flame retardant and a preparation method thereof.The wire harness film is prepared from polyvinyl chloride resin, a calcium-zinc stabilizer, an antioxidant tetra [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, an antioxidant tris (2, 2, 6-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5- The high-temperature-resistant plastic is prepared from 2, 4-di-tert-butylphenyl) ester, polyethylene wax, acetyl tributyl citrate, modified aluminum hydroxide, ammonium polyphosphate, maleic anhydride grafted ethylene-vinyl acetate and toner. The modified aluminum hydroxide is prepared from gamma-aminopropyltriethoxysilane, an ethanol water solution, acetic acid and powdery aluminum hydroxide. The flame-retardant insulating material has relatively good flame retardance, insulating property and mechanical property.

The invention discloses a degradable polyester fabric and a manufacturing method thereof. The manufacturing method comprises the following steps: S1, pretreating raw materials; s11, carrying out vacuum drying on the PET slices at 120 DEG C for 8 hours to remove moisture; s12, nano-hydroxyapatite and tributyl citrate are added into a high-speed mixer, and a pre-dispersion solution is prepared; s13, drying polycaprolactone in a drying oven at 80 DEG C for 4 hours to avoid generation of bubbles during melting; s2, melt spinning; s21, adding the pretreated PET slices, polycaprolactone, the pre-dispersion liquid, an antioxidant and an ultraviolet stabilizer into a double-screw extruder; and S22, the melt in the double-screw extruder is extruded through a spinneret plate, the temperature of cooling air is 25 DEG C, and the air speed is 0.8 m / s. The preparation method comprises the following steps: preparing a pre-dispersion liquid from nano-hydroxyapatite and tributyl citrate, and uniformly dispersing easily agglomerated nano-hydroxyapatite in a compatibilizer in advance by utilizing the compatibilization characteristic of tributyl citrate, thereby avoiding the agglomeration problem caused by direct mixing of nano-hydroxyapatite with PET and polycaprolactone during subsequent melt blending.

A medical device may be coated with a therapeutic composition comprising everolimus. The everolimus crystals may be coated with a mixture of excipients to form encapsulated everolimus crystals suspended in the coating composition. The medical device may contact the coating composition to form a coating on the medical device. Coating the everolimus crystal with a mixture of excipients to form an encapsulated everolimus crystal suspended in a coating composition can include suspending the everolimus crystal in a first solution comprising acetyl tributyl citrate (ATBC), and adding a second solution to the first solution; the present invention relates to a method for preparing everolimus crystals, comprising the steps of preparing a first solution comprising everolimus crystals, preparing a second solution comprising ethyl cellulose (EC), mixing the EC with ATBC and coating the everolimus crystals, thereby forming a coating suspension comprising the coated everolimus crystals.

The invention provides a water / biological dual-degradable composite material master batch and a preparation method thereof, and a plastic product and a treatment method thereof, and belongs to the technical field of composite materials. The water / biological dual-degradation composite material master batch comprises a water / biological dual-degradation resin mixture, a filler, a mixture of hydroxy propyl cellulose and tributyl citrate, low molecular weight polyethylene, a plasticizer, a heat stabilizer, stearic acid, a reinforcing agent, a flame retardant, polyethylene glycol and a coupling agent. The water / biological dual-degradable resin mixture comprises a poly (butylene succinate) / adipic acid copolymer, polycaprolactone, polyoxyethylene and an antioxidant, or comprises a poly (butylene succinate) / adipic acid copolymer, polylactic acid polypropylene carbonate, polyoxyethylene and an antioxidant. The water / biological dual-degradation composite material master batch has water solubility and biodegradability, and is low in melting point, and a plastic product prepared from the water / biological dual-degradation composite material master batch is convenient to realize simple and low-cost treatment or recycling after being used.

The invention discloses a method for toughening a composite modified polyanion pole piece, belongs to the technical field of battery pole pieces, and particularly relates to a method for preparing pole piece slurry by mixing a pole piece main material with SP, then adding PVDF glue solution for kneading treatment, then adding CNT for dispersing treatment, and adding a diluent for mixing; the PVDF glue solution contains a flexibilizer, and the flexibilizer comprises citrate and / or epoxidized vegetable oil; the mass ratio of the usage amount of PVDF to the usage amount of the flexibilizer in the PVDF glue solution is (3-12): (0.2-0.8), and the citrate comprises tributyl citrate and / or triethanolamine citrate. The invention provides the toughening preparation method of the composite modified polyanion pole piece, which has the advantages of high coating peel strength, low possibility of material falling and high capacity retention ratio after charging and discharging cycles after a battery is prepared from the composite modified polyanion pole piece.

The application relates to the technical field of degradable materials, and discloses an environment-friendly degradable polylactic acid straw and a preparation process thereof; the process comprises the following operation steps: step 1: chitosan is added into a mixed solution, uniformly mixed, amino-wood fiber-water solution and glutaraldehyde water solution are added, uniformly mixed, the pH is adjusted to 6.5-7, reaction is carried out at 40-45 DEG C for 2.5-3 hours, and then washing, drying and modification wood fiber are obtained; step 2: (1) modified polylactic acid, polyhydroxyalkanoate, modified wood fiber, tributyl citrate and triglyceride are uniformly mixed, and then dense mixing, discharging and crushing are carried out to obtain a composite master batch; (2) the composite master batch is sequentially subjected to extrusion forming, cooling and shaping and cutting to obtain the degradable polylactic acid straw.

This invention discloses a non-phosphorus ethylene cracking furnace coking inhibitor, its preparation method, and its application, applicable to the field of ethylene production technology. The inhibitor comprises the following components by weight percentage: dimethyl dithioaminodiethyl ester (7-32%), tributyl citrate (25-45%), dioctyl maleate (15-35%), pentaerythritol tetraisostearate (10-25%), sorbitan monooleate (5-20%), dioctyl adipate (3-15%), and butyl stearate (1-10%), as well as an organic solvent (a mixture of ethylene glycol ethyl ether, ethylene glycol butyl ether, propylene glycol methyl ether, isopropanol, and n-butanol), and is completely free of phosphorus. This inhibitor effectively prevents catalytic coking and inhibits gas-phase polymerization reactions through a dual mechanism of "physical shielding + chemical inhibition." Compared with existing coking suppression methods, this invention has higher coking suppression efficiency, less equipment corrosion, excellent storage stability, and environmental safety, making it suitable for various ethylene plants.

The invention discloses a reversible temperature-variable thermosensitive express waybill for cold-chain logistics, which comprises a base material layer and a composite thermosensitive coating coated on the surface of the base material layer, the base material layer is prepared from the following components in parts by mass: 30 to 45 parts of polyethylene-polylactic acid copolymer, 5 to 12 parts of modified nano montmorillonite, 10 to 18 parts of polybutylene adipate, 0.5 to 2 parts of antioxidant 1010 and 2 to 5 parts of plasticizer tributyl citrate; according to the invention, multiple innovative components are introduced to construct a composite thermosensitive coating system, so that reversible response to temperature change is realized, the color change cycle stability is excellent, temperature fluctuation in a cold-chain transportation process can be repeatedly monitored, and the defect of irreversible color change of an existing thermosensitive surface sheet is overcome; wherein the hydroxylated rare earth-organic ligand complex and the color former have a synergistic effect, so that the surface sheet presents obvious color change in different temperature intervals (for example, the surface sheet is dark blue at-18 DEG C or below, is light blue at 0-8 DEG C and is colorless at normal temperature), the temperature response sensitivity is high, and the color change response time is less than or equal to 5 seconds.