160 results about "Bulk polymerization" patented technology

The invention provides a virus-removing ultrafiltration membrane and a preparation method thereof, and belongs to the technical field of membrane separation. According to the preparation method of the ultrafiltration membrane, a hydrophilic polymer and a bulk polymer are blended to prepare a membrane casting solution, the ultrafiltration membrane is prepared on the basis of a double-layer homogeneous compounding method and a phase inversion method, and the obtained integrated ultrafiltration membrane comprises a separation layer with a compact skin layer and a pre-filtration supporting layer with a complete sponge structure, and provides high mechanical strength and toughness at the same time; the separation layer and the supporting layer form a hourglass-shaped structure with effective aperture continuously changing in a gradient mode, and no obvious interface or layering phenomenon exists. The ultra-filtration membrane is clear in gradient structure, the upper surface is loose, the lower surface is compact, the structures are fused more tightly, no obvious interface exists, the filtration resistance is reduced, and the protein permeability is improved. And the flux and the maximum treatment volume are improved and the treatment time is shortened while the relatively high virus rejection rate and the relatively low protein adsorption capacity are maintained.

The invention discloses a nano material modified alcohol amine grinding aid as well as a preparation method and application thereof, and the preparation method comprises the following steps: firstly, carrying out esterification reaction on alcohol amine and an acid small monomer containing double bonds to generate an esterification product; then, carrying out bulk polymerization on the esterification product and a silane coupling agent KH-570; and finally, combining the bulk polymerization product with the nano-material through a dehydration reaction of a silane coupling agent and hydroxyl on the surface of the nano-material to form the nano-material modified alcohol amine grinding aid. According to the invention, the nano material is directly grafted into the alcohol amine, so that the dispersity of the nano material in the cement grinding process can be effectively optimized, the friction force and energy consumption among cement particles can be reduced, the efficiency and stability of the cement production process can be improved, and the strength and durability of the cement product are improved.

The invention relates to an enhanced Lewis acid-base pair catalytic system and application thereof. The catalytic system comprises Lewis base, cyclic anhydride and Lewis acid, wherein the molar ratio of the lewis base to the cyclic anhydride to the lewis acid is 1: (0.1-10): (0.25-10). The preparation method comprises the following steps: sequentially adding cyclic anhydride, Lewis base, epoxide and Lewis acid into a reaction kettle, then adding a carbon-single monomer, and carrying out bulk polymerization reaction at 25-150 DEG C under a closed condition for 0.1-36 hours to obtain an epoxy copolymer; according to the invention, the reaction activity and selectivity of Lewis acid-base to a catalytic system can be enhanced, high activity is still maintained under low catalyst concentration, and the highest conversion frequency (TOF) is 78000h <-1 >.

The invention discloses a carbon nano tube / caprolactam in-situ body synthesized nylon 6 composite material and a preparation method and application thereof, the material is prepared from a carbon nano tube, caprolactam and a catalyst through a body reaction processing technology, and the carbon nano tube is a single-wall or multi-wall carbon nano tube. The preparation method specifically comprises the following steps: firstly, uniformly mixing the raw materials according to a specific proportion, and then sequentially completing the conveying of low-viscosity raw materials, the self-initiation of polymerization reaction, macromolecular growth and the extrusion of high-viscosity products in a double-screw extruder, so that the caprolactam monomer is subjected to continuous chemical reaction and physical forming, and the caprolactam-based composite material is obtained. The conductive carbon nanotube modified nylon 6 composite material is obtained through one-step in-situ bulk polymerization. According to the invention, under the condition that only a trace amount of carbon nanotubes are added, the composite material can present excellent conductivity, the preparation method is simple and efficient, has a remarkable cost advantage and is easy for industrial production, and the morphological structure of the composite material can be flexibly regulated and controlled through molding equipment according to actual use requirements.

The invention provides a prepolymerization reactor, a continuous bulk polymerization system and method and PMMA resin. The method comprises the following steps: mixing accurately metered polymeric monomers and auxiliaries, sequentially completing a prepolymerization reaction and a polymerization reaction in serially connected polymerization reactors, and then devolatilizing and granulating a polymerization product to obtain PMMA resin, and comprises the following steps: step 1, purifying and mixing reaction materials; step 2, prepolymerization reaction; step 3, polymerization reaction; step 4, devolatilization; and step 5, granulating. The method overcomes the defects that in the prior art, the polymerization conversion rate is low, the solvent usage amount is large, the molecular weight distribution of the product is wide, light transmittance and other properties cannot meet optical-grade application requirements, and the quality is difficult to accurately regulate and control. Through optimization of a formula and process conditions, a special process system design and combination of polymerization reactors, the contradiction between high conversion rate in the polymerization process and narrow molecular weight distribution of a PMMA product is solved; under the conditions of low solvent addition amount or no solvent, the high conversion rate is obtained, the molecular weight distribution of the polymerization product is narrow, the molecular weight is controllable, and the high-quality optical-grade PMMA resin product is obtained.

The invention belongs to the technical field of high-molecular compounds, and particularly discloses a method for preparing polymethyl methacrylate (PMMA) based on a bulk polymerization method, which comprises the following steps: S1, taking methyl methacrylate as a monomer, and mixing the monomer with an initiator under the protection of inert gas to form a homogeneous solution; s2, partially polymerizing the homogeneous solution at 60-80 DEG C until the monomer conversion rate reaches 10-30% to obtain a prepolymer; s3, continuing to polymerize the prepolymer at 80-100 DEG C until the monomer conversion rate exceeds 90%; and S4, carrying out devolatilization treatment at 100-120 DEG C under a vacuum condition to obtain PMMA with the molecular weight of more than 100,000. The problems that the polymerization process is not easy to control, the product performance is unstable, the molecular weight distribution is wide and the like in the prior art are solved, and efficient preparation of the PMMA material with high purity, narrow molecular weight distribution and high transparency can be realized.

The invention belongs to the technical field of polyester degradable plastics, and particularly relates to a PBAT / PLA composite degradable plastic and a preparation process thereof. The invention aims to solve the problems of poor weather resistance and insufficient mechanical properties of the existing PBAT / PLA composite material. The preparation method comprises the following steps: preheating PBAT resin particles, and carrying out melt grafting treatment to obtain modified PBAT; hydroxyl-terminated PBS is obtained through ester exchange polycondensation treatment, and a triblock compatilizer is further obtained through bulk polymerization; the preparation method comprises the following steps: carrying out acetylation modification on nano cellulose to obtain a dispersion enhancer, and carrying out melt blending on the dispersion enhancer and PLA resin particles to obtain enhanced master batches; and carrying out reactive blending on the modified PBAT, the reinforced master batch and the triblock compatilizer, and carrying out vacuum drying to obtain the degradable plastic. The degradable plastic provided by the invention keeps excellent degradability while having good mechanical strength.

The invention discloses a method for preparing polycaprolactone by ring-opening polymerization, and aims to provide a method for preparing polycaprolactone by ring-opening polymerization with the advantages of high catalytic activity, mild conditions, simple process and the like. The method uses ε-caprolactone as a monomer and trifluoromethanesulfonate metal as a catalyst, and prepares polycaprolactone by a bulk polymerization method under the condition that the reaction temperature is 100-160 DEG C. The invention uses trifluoromethanesulfonate metal as a catalyst for the polymerization preparation of ε-caprolactone, and belongs to the technical field of polymer organic synthesis.

The invention relates to the field of preparation of high-performance hydrogel, in particular to high-rigidity and high-strength phase separation hydrogel and a preparation method thereof. The method is a semi-interpenetrating bulk polymerization method and comprises the following steps: S1, mixing and dissolving a hydrophobic solid polymer, a hydrophilic liquid olefin monomer, an initiator and a selectively added cross-linking agent to obtain a gel pre-reaction solution; s2, molding the gel pre-reaction liquid, and initiating bulk polymerization to obtain a semi-interpenetrating bulk network polymer; and S3, soaking the semi-interpenetrating bulk network polymer in water, and carrying out hydration induced phase separation to obtain the high-rigidity and high-strength phase separation hydrogel. The tensile strength of the hydrogel prepared by the method can reach 1-50 MPa, the tensile modulus can reach 10-800 MPa, the water content is 25-80%, and the hydrogel has good mechanical properties and biocompatibility and can be applied to the fields of biomedicine, flexible robots, fuel cells and the like; the preparation steps are simple, and large-scale production is easy.

The invention discloses a ratio type fluorescent probe based on a carbon quantum dot hybrid covalent organic framework and a preparation method thereof, and the fluorescent probe comprises nitrogen-doped biological carbon quantum dots synthesized by using waste durian shells as a carbon source, and nitrogen-doped biological carbon quantum dots synthesized by using 2, 5-bis (allyloxy) terephthaloyl hydrazide and 4 ', 5-bis (allyloxy) terephthaloyl hydrazide as a carbon source. A three-dimensional hydrazide-imine type covalent organic framework is generated through a hydrothermal reaction of 4, 4 '', 4'' '', 4'' '''-(ethylene-1, 1, 2, 2-tetrayl) tetra (([[1, 1'-biphenyl]-4-formaldehyde)), and ratio type fluorescence is synthesized through bulk polymerization. A carbon quantum dot hybrid covalent organic framework is adopted to prepare the ratio-type fluorescent probe, two fluorescence emission signals with different wavelengths are formed based on the carbon quantum dot and the covalent organic framework, errors caused by factors such as signal drift and instrument change in an experiment are reduced, a three-dimensional hydrazide-imine covalent organic framework is adopted as a substrate, and the ratio-type fluorescent probe can be prepared by using the three-dimensional hydrazide-imine covalent organic framework as a substrate. Through fluorescence resonance energy transfer between the carbon quantum dots and the carbon quantum dots, self-quenching of the carbon quantum dots is reduced, and the strong adsorption capacity of the covalent organic framework synthesized by the carbon quantum dots to a target compound is utilized.

The invention discloses an adhesive as well as a preparation method and application thereof, and belongs to the technical field of polymer adhesives. The invention discloses an adhesive for bonding fluororubber and a fluorine-containing inert material, which is prepared by adopting a method of bulk polymerization of a silane coupling agent and vinyl-terminated fluorosilicone oil. According to the adhesive, the fluororubber and the fluorine-containing inert material can achieve excellent bonding strength, and the adhesive is simple in preparation process, low in price, easy to operate and easy to industrialize and has a good application prospect.

The invention discloses a preparation method of PMI foam. The preparation method comprises the following steps: step A, uniformly mixing acrylonitrile monomers, acrylic monomers, an initiator, a foaming agent, a cross-linking agent and a retarder; step B, adding the mixed material into a mold, sealing, and carrying out bulk polymerization reaction at 30-60 DEG C to obtain a precursor; step C, taking out the precursor, drying, and foaming at 150-200 DEG C; and step D, carrying out curing treatment under the condition of 140-180 DEG C. According to the preparation method, a specific polymerization retarding system is mainly selected, so that the polymerization rate can be finely regulated and controlled, the polymerization process can be mildly initiated and finely controlled, the gel effect can be effectively delayed, heat can be timely dissipated, and a favorable influence is generated on the copolymerization behavior.

The invention discloses a gas-phase polymerization evaluation method of a polypropylene catalyst, and relates to the technical field of catalyst evaluation.The gas-phase polymerization evaluation method of the polypropylene catalyst comprises the following steps that firstly, under the condition of a catalyst A1, polymerization I is conducted, and a polypropylene seed bed is obtained; 2, propylene and optional hydrogen are subjected to polymerization II in the presence of a catalyst A2 to be evaluated and the polypropylene seed bed, and a polymer containing the polypropylene seed bed is obtained; 3, separating the polymer containing the polypropylene seed bed to obtain a polymer; the gas phase copolymerization evaluation method of the polypropylene catalyst is simple, rapid and accurate; the seed bed is generated through a bulk polymerization reaction, the influence of impurities brought into an external seed bed on subsequent polymerization evaluation is avoided, and meanwhile, the seed bed is prepared by selecting a catalyst with relatively large particle size difference, so that the later separation of the seed bed can be simple, convenient and effective.

The invention discloses a cross-linked polystyrene anion exchange membrane as well as a preparation method and application thereof. The preparation method of the cross-linked polystyrene anion exchange membrane comprises the following steps: firstly, taking styrene and p-chloromethyl styrene as monomers, and obtaining a copolymer through bulk polymerization under the action of an initiator; the preparation method comprises the following steps: firstly, preparing a copolymer from polystyrene, then preparing a membrane casting solution from the copolymer and 1, 4-diazabicyclo [2.2. 2] octane, casting to form a membrane, then immersing the obtained membrane into a trimethylamine aqueous solution for complete quaternization, and finally treating in a KOH aqueous solution to obtain the cross-linked polystyrene anion exchange membrane. The invention provides an application of the cross-linked polystyrene anion exchange membrane in alkaline electrolyzed water. The anion exchange membrane is simple in synthesis process, reagents are cheap and easy to obtain, the contradiction between the OH <-> conductivity and the size stability of a traditional anion exchange membrane can be greatly balanced, and meanwhile the anion exchange membrane has high alkaline stability and shows excellent electrolytic performance in alkaline electrolyzed water.

The invention discloses a polymerization method of polycaprolactone, which comprises the following steps: by taking epsilon-caprolactone as a monomer and acetylacetone salt as a catalyst, adding an initiator, preparing polycaprolactone by adopting a bulk polymerization method under the conditions that the reaction temperature is 130-150 DEG C and the reaction time is 4-48 hours, and washing, precipitating and drying in vacuum to obtain the polycaprolactone, according to the technical scheme provided by the invention, acetylacetonate is used as a catalyst for polymerization preparation of epsilon-caprolactone, and the method has the advantages of high catalytic activity, mild conditions, simple process and the like.

The invention provides a blocking composition for resisting CO2 gas channeling and a blocking agent for resisting CO2 gas channeling. The plugging composition for resisting CO2 gas channeling comprises the following components in parts by weight: 90 to 100 parts of cement, 90 to 100 parts of epoxy resin, 15 to 20 parts of acrylonitrile, 25 to 35 parts of a curing agent, 15 to 20 parts of a diluent and 0.01 to 0.1 part of an initiator. Wherein acrylonitrile initiates bulk polymerization through an initiator, a C = N bond of the formed polyacrylonitrile is subjected to acidic hydrolysis in a low-pH environment to generate polyacrylic acid, the polyacrylic acid and epoxy resin are subjected to a ring-opening reaction, and a formed three-dimensional network structure polymer and cement are mutually interspersed; the overall cohesiveness, temperature resistance, strength, toughness, stability, acid resistance and pressure resistance of the blocking agent for resisting CO2 gas channeling are improved, so that a good channeling blocking effect in a CO2 flooding well is realized.

This invention belongs to the field of biomedical polymer materials technology, and relates to a method for preparing an injectable thermosensitive composite hydrogel that promotes wound healing, and its application. Polyethylene glycol monomethyl ether is used as a macromolecular initiator, and stannous octoate is used as a catalyst to initiate the bulk polymerization of six-membered cyclic carbonate monomers and their derivatives. After polymerization, coupling is performed via hexamethylene diisocyanate to obtain an amphiphilic block polymer with hydrophilic ends and an oleophilic middle. The block polymer is then dissolved in PBS at low temperature, and a certain proportion of wound-healing nanoparticles are uniformly dispersed in the polymer aqueous solution to obtain the injectable thermosensitive composite hydrogel. This composite hydrogel is a viscous liquid at room temperature and has a viscosity of 34°C. o It rapidly gels in environments above °C, meaning that after injection into the body, it can gel quickly and release nanoparticles in situ to promote wound repair. It also possesses excellent wound-healing capabilities.

The invention discloses crystalline polyesteramide as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The method comprises the following steps: taking aziridine with a protecting group and cyclic anhydride as polymeric monomers, carrying out bulk polymerization, melt polymerization or solution polymerization under the action of a catalyst to obtain amorphous polyesteramide, and carrying out polymer post-treatment and aziridine protecting group removal to obtain the crystalline polyesteramide with a-C = O-NH-structure. The method has the advantages that the adopted monomers are rich in source, cheap and easy to obtain, the polymer is rich in structure and diversified in structure, and the polymerization method is simple. The prepared polyesteramide has excellent crystallinity and degradability, and has potential application prospects in the fields of biology, medicine, flexible electronics and the like.

The invention discloses a molecularly imprinted membrane of a new psychoactive substance and a preparation method and application of the molecularly imprinted membrane, the molecularly imprinted membrane comprises a membrane substrate and an adsorption material layer arranged on the membrane substrate, and the material of the adsorption material layer comprises 3, 3 ', 4', 4 '-tetramethyl-3, 3', 4 '-tetramethyl-3, 3'-tetramethyl-3, 3 '-tetramethyl-3, 3'- The molecularly imprinted polymer is prepared by using 2, 4-methylenedioxyphenylethylamine as an alternative template and using a bulk polymerization method. The novel molecularly imprinted membrane prepared by combining a molecularly imprinted technology and a separation technology is used as a membrane extraction material, and integrates the advantages of a membrane extraction technology and an imprinting technology, so that the problems that a membrane material is easy to pollute and low in selectivity are solved, and the novel molecularly imprinted membrane is suitable for being used as a membrane extraction material. The method shows the capability of accurately identifying a target analyte in the membrane separation process, has the advantages of high efficiency, stability, repeatability and the like, and provides a new technical means and potential application for identifying and detecting common forbidden drugs in a water body.

The application belongs to the field of polymer synthesis, and particularly relates to a modified PBT copolyester, and a preparation method of the modified PBT copolyester. x BT y copolyester. The modified PBT copolyester is prepared by using a bio-based monomer synthesized from a renewable resource through a green and environmentally-friendly synthesis method and an easy-to-operate synthesis process. The obtained copolyester has high toughness, and the defects of pure PBT are compensated, so that the copolyester has a wider application.

The invention relates to the technical field of polymer drying, in particular to a bulk polymer drying machine and a bulk polymer drying method.The drying machine comprises a barrel, a rake tooth transmission shaft and a controller, and the rake tooth transmission shaft is rotationally arranged in the barrel in the axial direction of the barrel; a jacket of the barrel is divided into three independent heating chambers from bottom to top, namely a lower jacket, a middle jacket and an upper jacket; the lower jacket is connected with the first heating medium system, the middle jacket is connected with the second heating medium system, and the upper jacket is connected with the third heating medium system; a heat transfer channel is formed in a hollow cavity of the rake tooth transmission shaft and is connected with a second heating medium system; heating medium temperature sensors are respectively arranged at heating medium inlets and outlets of the lower jacket, the middle jacket and the heat transfer channel; and all the heating medium temperature sensors and all the heating medium systems are in communication connection with the controller. The technical problem that in a traditional single-jacket heating mode, due to the fact that the material drying processes in different spaces are not synchronous, efficiency and quality are difficult to consider at the same time is solved.

The present invention relates to the field of polymerizing lactic acid to form polylactic acid (PLA). In particular, the present invention relates to a process for bulk polymerization during the production of PLA. The invention also relates to a device for carrying out the process according to the invention and to the use of the process or device according to the invention in the production of polylactide polymers.

This invention provides the application of a mixture of methylstyrene with high para-isomer content in the preparation of polystyrene substitute copolymers, belonging to the field of polymer material synthesis technology. This invention is the first to directly utilize a low-cost mixture of methylstyrene isomers to replace high-purity styrene. Through a "boiling-condensation" cycle in the fluidized bed polymerization process, efficient and constant-temperature heat dissipation is achieved, effectively overcoming the heat transfer difficulties and temperature runaway risks of traditional bulk polymerization. This facilitates control of the polymerization mechanism and yields random copolymers with a narrow molecular weight distribution and mechanical properties comparable to general-purpose polystyrene. This method is simple and controllable, significantly reduces raw material costs, and combines economic benefits with environmental value. The resulting copolymers can be used in general plastics, packaging materials, and other fields.

Disclosed are microcomposites comprising one or more microcomposite units where each microcomposite unit includes a nucleating component with a nucleating surface and a porous transcrystalline layer made of a crystallizable thermoplastic polymer covering the nucleating surface where the microcomposite is devoid of a bulk polymer matrix phase and, in some preferred embodiments is also substantially devoid of amorphous thermoplastic polymer in the pores of the transcrystalline layer, and methods of making the same.

The invention discloses a catalyst for preparing polyester by ring-opening polymerization and a method for preparing polyester, belonging to the technical field of organic catalysis and polymer materials. In the presence of an initiator alcohol, a cyclic ester monomer is ring-opened and polymerized under the catalysis of an organic bifunctional phosphine salt to obtain polyester. The catalyst used in the method does not contain metal, is cheap and easy to obtain, and has the characteristics of high temperature resistance, and may be applied in bulk polymerization under industrial conditions. The method is simple in process, low in cost, high in reaction activity, and the prepared polyester has the advantages of accurate molecular weight and low molecular weight distribution.

The application relates to a production device and method of a polypropylene product, and belongs to the technical field of olefin polymerization. The production system comprises a catalyst providing unit, a propylene providing unit, a prepolymerization unit, a comonomer providing unit, a reaction unit, a flash evaporation unit, a medium-pressure separator, a low-pressure separator, a condensation recycling unit, a purification bin and a monomer recycling system. The polymer degassing and propylene and comonomer recycling section of the production system only comprises a flash evaporation process, a gas-solid separation process, a compression and condensation process, a purging process and a membrane recycling process. The gas-solid separation process is carried out in three steps in the medium-pressure separator, the low-pressure separator and the purification bin, the washing, steaming, drying and propylene / ethylene stripping separation processes in the original loop body polymerization process are cancelled, the polymer degassing and propylene / comonomer recycling section process is greatly simplified, the layout is more compact, and the equipment investment and wastewater discharge are reduced.

This invention provides a method for preparing and applying an ester resin. The fluorinated acrylate resin includes polymerizable monomers, an initiator, and a fluorinated comonomer. This invention prepares a fluorinated acrylate copolymer via bulk polymerization, exhibiting excellent solvent resistance, hydrophobicity, and toughness, solving the problems of high water absorption and poor solvent resistance in traditional polymethyl methacrylate (PMMA) films. The preparation method employs a mild polymerization process with a simple procedure. By rationally controlling the monomer ratio and reaction conditions, the resin retains its original advantages such as high light transmittance (>92%), light weight, and ease of processing while improving hydrophobicity and solvent resistance, and simultaneously enhancing material toughness. The fluorinated acrylate resin prepared by this invention has a stable structure and excellent performance, and can be widely used in transparent protective coatings, optical films, hydrophobic functional materials, and other fields, effectively broadening the application range of PMMA materials.

The utility model relates to the technical field of master and auxiliary material production, and discloses an efficient master and auxiliary material polymerization device for expanding agents, which comprises a polymerization component, a stirring component arranged inside the polymerization component and a heating component arranged outside the polymerization component, the polymerization component comprises a polymerization tank body, a feed pipe is mounted at the upper end of the polymerization tank body, and a feed pipe is mounted at the lower end of the polymerization tank body. The lower end of the inner wall of the polymerization tank body is fixedly connected with an extrusion block, the stirring assembly comprises a motor, the output end of the motor is fixedly connected with a transmission shaft, stirring rods are arranged on the two sides of the transmission shaft, and the lower end of the transmission shaft is fixedly connected with an impact rod. And finally, the stirring rods move, the rotating directions of the two stirring rods and the transmission shaft are opposite, the stirring efficiency is improved, and under the mutual cooperation of an extrusion block and an impact rod, caked auxiliary materials are smashed, and discharging is convenient.

The application relates to the technical field of foaming materials, and discloses a high-toughness expandable polystyrene blended foaming material and a preparation method, the method comprises the following steps: rubber nanoparticle preparation, prepolymerization, reaction extrusion bulk polymerization, additive addition and mixing, cutting granulation, drying and screening, and foaming treatment; in the application, rubber raw materials are processed into nanoscale particles through nanogrinding technology, and the rubber raw materials are made into block copolymer structures with polystyrene monomers by using a reaction extrusion bulk polymerization method; the rubber phase is uniformly dispersed and chemically bonded at the molecular level in the polystyrene matrix, as stress absorption points, the toughness, impact resistance and mechanical property consistency are improved, phase separation and stress concentration are avoided, and the material has uniform deformation capacity and energy dissipation mechanism when being stressed.

The invention belongs to the technical field of inverse opal photonic crystal materials, and discloses an anthracene-doped inverse opal structure thin film with a function of rapidly preparing a fluorescent pattern, and a preparation method and application of the anthracene-doped inverse opal structure thin film. The film is formed by compounding a polyacrylate copolymer and a silicon dioxide photonic crystal and etching in hydrofluoric acid. The polyacrylate copolymer is obtained by carrying out bulk polymerization on polyethylene glycol monophenyl acrylate doped with 10-(1-naphthyl) anthracene-9-boric acid and ethoxylated trimethylolpropane triacrylate under the action of a photoinitiator, namely 2-hydroxy-2-methyl-1-phenylacetone. The film has great application potential in the aspects of visual optical anti-counterfeiting and programmable fluorescent switch integration, and is expected to become a new generation of optical anti-counterfeiting label due to the characteristics of rapid patterning and high brightness.