31results about How to "Act quickly" patented technology

The invention relates to the field of forestry pest prevention and control, and discloses a juglans sigillata forest intelligent pest prevention and control system and method.The juglans sigillata forest intelligent pest prevention and control system comprises a data acquisition module used for collecting basic information of a juglans sigillata forest, and the basic information comprises meteorological environment parameters, soil physical and chemical properties and in-forest visual image data; the identification and analysis module is used for deeply analyzing data characteristics of the basic information, discriminating types and severity of diseases and pests, predicting potential occurrence risks of the diseases and pests and forming an evaluation result; and the early warning response module is used for presetting a risk level threshold value and rule logic and generating an early warning signal of a corresponding level according to an evaluation result. A data acquisition module integrating multiple types of monitoring units and communication units is constructed, so that the juglans sigillata forest can be sensed in all directions, the limitation of manual inspection is eliminated, and the problems of inaccurate monitoring and difficulty in data backtracking are solved; and the identification analysis module comprises sample management, model training and data analysis and prediction.

The invention discloses a coal mine fireproof simulation training method based on a virtual reality technology, relates to the technical field of coal mine fireproof simulation training, is used for solving the problem that a virtual scene and student operation are asynchronous due to sensor data delay or misalignment in the training process, and comprises the following steps: collecting action data of a student in real time; comprise posture change, hand movement and position coordinate information. Seamless synchronization of the sensor and the virtual scene is ensured through the time synchronization algorithm and the dynamic compensation model, and the safety and effectiveness of training are improved. In combination with a sliding window, a prediction algorithm and a redundancy detection mechanism, the system has high fault-tolerant capability, and training continuity and stability are guaranteed. The dynamic path planning under the fire spreading trend is realized by adopting the A * algorithm, and the guidance is quickly adjusted and corrected when the trainee deviates from the path, so that the real-time response capability and the immersion of training are improved, and the trainee is helped to quickly make a decision and act in an emergency.

The invention belongs to the related technical field of soil conditioning, and particularly relates to a soil conditioner releasing device and method.The soil conditioner releasing device comprises a frame body, an adjusting mechanism is arranged on the left side of the frame body, and a soil loosening mechanism is arranged at the lower end of the adjusting mechanism; the upper end of the soil loosening mechanism is movably connected with two rotating sleeves, and two limiting grooves are formed in each rotating sleeve. Through mutual cooperation of a first double-shaft motor, a first worm, a first transmission wheel and a second transmission wheel, the effect of driving a first rotating rod to rotate can be achieved, and through rotation of the first rotating rod, the effect of driving a discharging rotating roller arranged on each adjusting and releasing mechanism to rotate can be achieved; the soil conditioner in the material box can be quantitatively and uniformly fed into soil through the discharging pipe under the mutual cooperation of the arranged releasing groove body, the discharging groove and the adjusting block through rotation of the discharging rotating roller, and therefore the quantitative releasing process of the soil conditioner is achieved.

The flotation recovery method comprises the following steps: carrying out ore grinding and dissociation treatment on raw copper ore, then carrying out roughing, and grading roughing tailings to obtain three-fraction ore pulp products of + 200 meshes, 200-400 meshes and-400 meshes; the + 200-mesh ore pulp product is subjected to coarse grain flotation, a combined collecting agent of disulfide diisopropyl xanthate and isopropyl xanthate is adopted for recycling coarse grain copper minerals, and obtained rough concentrate is returned to the ore grinding operation; carrying out fine particle flotation on the ore pulp product with the size of-400 meshes by adopting a fine particle flotation collecting agent, and combining obtained rough concentrate with copper roughing rough concentrate for concentration; ore pulp products of 200-400 meshes are directly used as tailings. According to the method, the lost coarse and fine copper minerals in the ore pulp can be intensively recovered, and the copper flotation recovery rate can be increased.

The invention relates to the technical field of electro-optical modulators, in particular to a sinking type double-layer electrode lithium niobate electro-optical modulator which comprises a substrate, an oxide layer, an optical waveguide, a transition layer and a metal electrode. The substrate is located at the bottommost part, the oxide layer is located at the top of the substrate, the optical waveguide, the transition layer and the metal electrode are all arranged above the oxide layer, the optical waveguide is an X-shaped cut LN film and adopts a traditional ridge-shaped structure, and the metal electrode is of a double-layer electrode structure and comprises a first layer of traveling wave electrode and a second layer of T-shaped structure electrode. Loss can be effectively reduced, and modulation efficiency is improved. In order to reduce the light absorption loss, the metal electrode and the optical waveguide are separated by using a 0.2 mu m silicon dioxide transition layer, the metal electrode is arranged along the Z axis of the optical waveguide, and the sunken double-layer electrode lithium niobate electro-optical modulator realizes the half-wave voltage length product of 1.52 V.cm under the light absorption loss of 0.14 dB / cm, and has important guiding significance for the design of the electro-optical modulator.

The application discloses a hyperspectral image adversarial sample generation method and a hyperspectral target detection model test method, wherein the adversarial sample generation method comprises the following steps: acquiring an original hyperspectral image, and selecting a proxy model; processing the original hyperspectral image by using the proxy model to obtain a prediction result; based on the proxy model, a mixed image is made in combination with spectral features and spatial features of a target category; the original hyperspectral image and the mixed image are respectively input into the proxy model to correspondingly obtain two shallow layer features; a multi-path mixed loss function is constructed based on the two shallow layer features and the prediction result, and the proxy model is iteratively trained by using the multi-path mixed loss function for back propagation to obtain an adversarial sample. The adversarial sample generated by the method comprises rich spectral information, and the effective test of the hyperspectral target detection model can be realized.

The application provides a method for transdifferentiation of fibroblasts into hair papilla-like cells and application thereof, and relates to the technical field of biotechnology. The transdifferentiation method comprises inducing fibroblasts by using Peficitinib, so that the fibroblasts are transdifferentiated into hair papilla-like cells. A large number of hair papilla-like cells with hair induction capacity can be obtained in vitro by the method, and the problem that primary separated hair papilla cells are insufficient for developing alternative therapies for treating alopecia in the prior art is solved.

The utility model discloses a sound box with a high sound effect, which comprises a box body, and a low pitch unit, a middle pitch unit and a high pitch unit which are arranged on the sound box, and a front plate, a back plate, a top plate, a bottom plate, a first side plate and a second side plate of the box body are all composite plate bodies. The composite board body comprises an inner-layer high-density fiberboard, an outer-layer medium-density fiberboard and a high-damping adhesive layer which is fixedly adhered between the inner-layer high-density fiberboard and the outer-layer medium-density fiberboard, and the centers of the low-pitch unit, the middle-pitch unit and the high-pitch unit are not positioned on the same straight line. The box body of the sound box is composed of the inner-layer high-density fiberboard, the outer-layer medium-density fiberboard and the high-damping glue layer, and the box body is formed by combining different woods to disperse panel resonance, so that obvious acoustic resonance of a single frequency is avoided. And the inner-layer high-density fiberboard and the outer-layer medium-density fiberboard are bonded by using high-damping glue to form an inseparable whole, so that unnecessary resonance is avoided.

The present application relates to the technical field of trajectory planning of nonlinear underactuated electromechanical systems, and particularly relates to a multi-unmanned aerial vehicle cooperative hoisting system constraint space crossing trajectory planning method and system. The method comprises the following steps: based on a polyhedral volume constituted by the hoisting system and a hoisting rope tension, a hoisting system crossing formation optimization model under a constraint space is constructed to obtain an optimal formation of the hoisting system crossing the constraint space; a circumscribed sphere center and a radius under the optimal formation of the hoisting system crossing the constraint space are calculated; based on the circumscribed sphere center and the radius, a trajectory planning model of the hoisting system crossing the constraint space based on time optimization is constructed by considering dynamic constraints, driver constraints and flight path point constraints; based on the relative position relationship among the circumscribed sphere center, the unmanned aerial vehicle and the load, the trajectory planning model of the hoisting system crossing the constraint space is adopted to obtain a trajectory of the hoisting system crossing the constraint space; and under the guidance of the trajectory of the hoisting system crossing the constraint space, a load transportation task is completed.

The invention discloses a trickle bed type wastewater degradation device and a trickle bed type wastewater degradation method, and relates to the technical field of wastewater treatment equipment.The electrode distribution and the reactor structure are improved, so that uncharged or positively charged substances in wastewater are in full contact with an anode electrode, and the reaction degradation effect is effectively improved; according to the scheme, the trickle bed type wastewater degradation device comprises an electrolytic bath body and a bath cover arranged on the electrolytic bath body, at least one electrolysis chamber and a water storage chamber are arranged in the electrolytic bath body, and wastewater treated by the electrolysis chamber overflows to the water storage chamber after being fully stored; the tank cover comprises a tank cover cavity, a first electrode mounting hole group is formed in the tank cover cavity, cathode electrodes and anode electrodes are sequentially and alternately arranged in the first electrode mounting hole group, and the cathode electrodes and the anode electrodes penetrate through the electrode mounting holes to extend into the electrolysis chamber; and a dripping hole is also formed in the mounting hole of the anode electrode.

The application belongs to the technical field of biological fermentation, and discloses a method for efficiently preparing earthworm functional liquid by using earthworm intestinal endogenous probiotics and enzymes and the earthworm functional liquid. The method comprises the following steps: step 1: activating and expanding B. velezensis XY1, P. megaspora and Lactococcus lactis respectively to obtain B. velezensis XY1 bacterial liquid, P. megaspora bacterial liquid and Lactococcus lactis bacterial liquid; and step 2: inoculating the B. velezensis XY1 bacterial liquid, the P. megaspora bacterial liquid, the Lactococcus lactis bacterial liquid and a compound enzyme into earthworm slurry to obtain the earthworm functional liquid. The B. velezensis XY1, the P. megaspora, the Lactococcus lactis and the compound enzyme are used for synergistic fermentation to obtain the earthworm functional liquid, the content of total amino acids and small peptides is significantly improved, and the effect of the earthworm functional liquid can be further improved.

The invention discloses a transient frequency support control method considering the low voltage penetration characteristic of a converter, and relates to the field of electrical engineering, and the method comprises the steps: collecting the voltage data and frequency data of a power grid through a real-time monitoring sensor; based on the acquired power grid voltage data, carrying out converter voltage low-pass-through characteristic detection to obtain a voltage low-pass-through state; according to the voltage low penetration state, starting an adaptive response strategy, and adjusting a power instruction; based on the power grid frequency data, starting a virtual synchronous machine control algorithm according to the adjusted power instruction, and adjusting power output; a reinforcement learning algorithm is used to carry out cooperative adjustment on the voltage low-penetration adaptive response strategy and the virtual synchronous machine control algorithm, and the state of the power grid is recovered; according to the invention, through cooperative adjustment of the self-adaptive response strategy of the voltage low penetration state and the virtual synchronous machine control algorithm, the effect of the converter in power grid frequency adjustment is effectively improved, and the stability and reliability of the power grid frequency are enhanced.

The present invention relates to the field of edge computing technology, and specifically, to an intelligent edge computing method, system and terminal based on AI artificial intelligence. It includes the following steps: collecting operation data through edge devices; using long short-term memory network models based on operation data to predict equipment failures, and training the long short-term memory network models on the cloud; deploying the trained long short-term memory network models to edge devices; the long short-term memory network models in the edge devices continuously analyze the newly collected data in real time and respond quickly. The design of the present invention can realize real-time analysis and rapid response to newly collected data by deploying the trained long short-term memory network model to the edge device. This greatly reduces the time delay for data to be transmitted to the cloud and then returned to the processing results, which is particularly important for application scenarios that require real-time decision-making.

The utility model discloses a multi-mode numerical control high-temperature wire thermal shrinkage tunnel furnace which comprises a wire conveying device, a thermal drying device and a control module. The control module is used for driving the wire rod conveying device to execute at least one motion mode, and the motion mode comprises constant-speed motion, positioning motion, interval motion and back-and-forth motion; the constant-speed motion realizes continuous and constant-speed conveying of wire rods, and guarantees the stability of a conventional thermal shrinkage process; the positioning movement enables the wire rod to be accurately suspended below the hot drying device, so that local intensified heating is realized; the multiple wires are parked according to preset intervals through interval movement, and accurate positioning is ensured; the reciprocating motion enables the pyrocondensation material of the wire rod to be heated at multiple angles, and heating dead angles are eliminated. The hot air generator is directly in butt joint with the hot air outlet part, heat loss and energy waste in a hot air transmission path can be reduced, the heat conduction efficiency is improved, and hot air acts on a target area more quickly, intensively and stably.

The invention relates to a training method, an audio-visual segmentation method, an electronic device and a storage medium, and the method comprises the steps: obtaining a training sample which comprises an audio signal, an image, a target semantic tag and a segmentation tag; extracting audio features and image features, and performing self-attention enhancement on the audio features based on the target semantic tag to apply target semantic consistency constraint to obtain enhanced audio features; performing cross attention reweighting on the unenhanced audio features based on the guidance of the enhanced audio features to obtain target pointing audio features; bidirectional interactive fusion is executed based on the image features and the target pointing audio features, and a sparse self-attention network is adopted in the image feature fusion process to suppress unmatched image region response; generating a segmentation prediction result based on the fused image features and audio features, and training to obtain an audiovisual segmentation model; and inputting a to-be-processed video into the trained audio-visual segmentation model, and outputting a segmentation result. The image segmentation accuracy of the sounding target can be improved.

The invention discloses an aluminum alloy frame polishing device with an overturning structure and a using method, and relates to the technical field of aluminum alloy frame production, the aluminum alloy frame polishing device comprises a polishing base, a polishing inner seat and a driving push plate, a guide vertical frame is mounted at the output end of an electric lifting seat, and an aperture butt joint column is movably mounted on the opposite side of the driving push plate through a rotating shaft; the overturning motor is installed in the center of the outer side of the driving push plate, and the inner diameter arc abutting frame is movably installed on the outer side of the aperture butt joint column. A vehicle frame initial limiting assembly is arranged on the inner side of a guide vertical frame, two sets of aperture butt joint columns are inserted into a circular ring hole of a center main rod, and an outer abutting hand rod drives an inner diameter arc abutting frame to expand outwards to abut against the inner diameter of the circular ring hole of the center main rod; the expanding diameter of the inner-diameter arc abutting frame is adjusted according to the diameter of the circular ring hole of the aluminum alloy frame so as to ensure that the inner-diameter arc abutting frame can be accurately fixed in the circular ring hole, the aluminum alloy frame is prevented from sliding or deviating in the overturning process of the aluminum alloy frame, and therefore the stability of the polishing process is improved.

The invention belongs to the technical field of medicines, and particularly relates to a silybum marianum composition for improving liver function and a preparation method thereof, the composition comprises quick-release cholagogic micro powder and slow-release liver-nourishing particles in a mass ratio of 1: (2-4); the quick-release cholagogic micro powder is prepared from curcumin, fructus aurantii immaturus flavone, a tanshinone extract and PVP K30 through ball-milling solid dispersion; the slow-release liver-nourishing particle is of a core-shell structure, a freeze-drying core of the slow-release liver-nourishing particle contains silymarin and schizandrin extract, and a glycyrrhetinic acid-phospholipid / chitosan oligosaccharide targeted coating and a medicinal acrylic resin coating are sequentially arranged on an outer layer of the slow-release liver-nourishing particle. According to the composition, through sequential synergy of'first defibering and then repairing 'and a liver targeting effect, the content of silymarin in liver tissue is remarkably increased, the silymarin is retained for a long time, and liver function impairment such as non-alcoholic fatty liver disease is effectively improved.

The invention discloses an application of an ointment taking a banana peel extract as an effective component in prevention and treatment of beriberi. The banana peel extract is prepared by extracting fresh banana peel, has a remarkable inhibition effect on trichophyton rubrum which is a main pathogenic bacterium of beriberi, and can achieve the beneficial effects of sterilizing, relieving itching and preventing keratosis and desquamation after being applied. The banana peel extract is creatively applied to beriberi prevention and treatment, has the characteristics of quick action, remarkable effect, mild process and no toxic or side effect, and provides an effective way for beriberi prevention and treatment.

The invention discloses a catalytic cracking cocatalyst with high thermal wear resistance. The catalytic cracking cocatalyst comprises a molecular sieve, a matrix, a binder and a binder modifier, the molecular sieve has an MFI structure, and the molecular sieve with the pore diameter of less than 0.7 nm accounts for 50-100 wt% of the total amount of the molecular sieve; the matrix is composed of a gamma-alumina precursor with a peptizing index less than or equal to 50% and clay; the binder is prepared from a phosphorus-containing compound and an aluminum-containing compound; the binder modifier is prepared from the following raw materials: a polymeshed chelating ligand, precursors of at least two coordination metals, alcohol and organic acid; the binder is mixed with the binder modifier and the matrix in a high shear emulsifier. Compared with the existing catalytic cracking propylene and octane number promoter, the catalytic cracking promoter provided by the invention has higher thermal wear resistance, large pore volume and high molecular sieve content.

The application discloses a high-activity small-molecule plant private care gel and a preparation method thereof, and belongs to the technical field of care products. The care liquid raw materials comprise lotus extract, double-petaled red rose extract, saffron extract, seaweed extract, a small-molecule oligomeric hyaluronic acid gel matrix, a plant polysaccharide composite stabilizer, a pH buffer regulator and purified water. The product is prepared through low-temperature ultrasonic extraction, nanofiltration membrane concentration, sterile mixing and vacuum homogenization defoaming. The product has the characteristics of strong permeability, mildness and no irritation, moisturizing and repair, soothing dryness and itching, maintenance of private microecological balance and the like, the transmucosal absorption rate of small-molecule active ingredients is greater than or equal to 85%, the stability is high, the formula is unique, the process is controllable, and the product is suitable for being used as a female daily private care product.

The present application discloses a composition containing 4-trifluoromethylnicotinamide and chemical insecticides, and relates to the field of pesticide preparations, wherein the composition includes an effective active component a and an effective active component b; the effective active component a is 4-trifluoromethylnicotinamide; the effective active component b is selected from any one of chemical insecticides; the chemical insecticide includes any one of thiamethoxam, nitenpyram or pyriproxyfen. The present application can significantly improve the control effect of the composition on piercing-sucking pests by combining the effective active component a and the effective active component b to synergize, and can also delay the drug resistance of tea green leafhoppers, and has the advantages of fast control and long lasting effect.

The invention relates to the technical field of traditional Chinese medicines, and particularly discloses an external traditional Chinese medicine composition for treating migraine, which comprises the following components in parts by weight: 2 parts of jasmine root and 8 parts of vaseline, the jasmine root is dry powder which is dug from September to December every year, and the impurity rate of the dry powder is not more than 3%, and the vaseline is uniformly mixed. The traditional Chinese medicine has a remarkable and quick effect on migraine patients, and over half of patients can be obviously relieved after being smeared for 2 hours. The composition thought of the traditional Chinese medicine composition is that the traditional Chinese medicine composition is prepared according to classic medicines and a large amount of clinical experience, the problems of clinical migraine and other acute pain stages can be solved, and an effective and safe traditional Chinese medicine formula for external use is provided. The traditional Chinese medicine has the characteristics of good curative effect, convenience in use, low cost and high acceptance degree.

The utility model belongs to the technical field of rescue shovels, and discloses a multifunctional shovel for rescue, which comprises a stretcher mechanism, the stretcher mechanism comprises a hollow shovel rod, a rotating shaft capable of rotatably rolling nylon cloth is arranged in the hollow shovel rod, the nylon cloth is arranged on the outer side of the rotating shaft, an arc-shaped sheet is arranged on one side of the nylon cloth, and two groups of grips are mounted on the outer side of the arc-shaped sheet; the hollow shovel rod, the nylon cloth and the arc-shaped sheet jointly form the stretcher, and compared with the prior art, the stretcher mechanism has the following beneficial effects that the stretcher mechanism is designed; when the wounded needs to be transferred, rescue workers only need to hold the arc-shaped pieces and pull the arc-shaped pieces outwards. And along with the movement of the arc-shaped sheet, the nylon cloth wound on the outer side of the rotating shaft can be pulled out of the hollow rotating rod. In the process, the nylon cloth is gradually unfolded and finally forms a temporary emergency stretcher together with the rescue shovel. By means of the design, integration of the stretcher and the rescue shovel is achieved, the trouble that two kinds of tools need to be carried separately in the prior art is avoided, and the load of rescue workers is relieved.

The application relates to the field of electrodes of a vanadium redox flow battery, and discloses a modification method of high-catalytic-activity carbon felt, which comprises the following steps: firstly, a precursor is prepared by reacting a cobalt-iron salt, 2-methyl imidazole and sodium hydroxide, and a cobalt-iron bimetallic MOF derivative is obtained by calcining at 300 DEG C to 350 DEG C; then, the derivative is prepared into a dispersion liquid, and active components are made to deeply enter the internal pores of polyacrylonitrile-based carbon felt by vacuum impregnation; finally, hydrothermal recrystallization treatment is carried out at 150 DEG C to 180 DEG C, so that dehydration condensation of the modified layer and the substrate occurs to form stable C-O-M chemical bonds. By utilizing the bimetallic synergistic effect and the interface chemical anchoring mechanism, the application systematically solves the bottlenecks of low intrinsic activity, poor wettability and easy falling-off of the catalytic components of the carbon felt. After modification, the static contact angle of the carbon felt is reduced, the immersion weight increase rate is improved, the battery concentration difference polarization is reduced, and the cycle stability of the electrode under long-term electrolyte flushing is ensured.

The utility model discloses an edible mushroom sterilization furnace, and relates to the technical field of edible mushroom processing. A driving motor is fixedly installed on the left side of the sterilization furnace body, the output end of the driving motor is fixedly connected with a rotating shaft, and a connecting piece is arranged on the right side of the rotating shaft; the swinging device comprises a mounting plate, a sliding block, a sliding rail, a placing disc, a first mounting rod, a first connecting plate, a second mounting rod, a third mounting rod, a third connecting plate, a third fixing rod and a traction piece; a mounting plate is fixedly mounted at the position, close to the center, of the left side wall in the sterilization furnace body, a sliding rail is circularly mounted on the right side of the mounting plate, sliding blocks are circularly distributed in the sliding rail, first mounting rods are arranged on the right sides of the sliding blocks, and first connecting plates are arranged on the right sides of the first mounting rods; second mounting rods are arranged at the positions, close to the rear ends, of the right sides of the first connecting plates correspondingly, and placing discs are fixedly connected to the right sides of the second mounting rods correspondingly.

The invention discloses application of L-glutamylglycine in prevention and treatment of plant root-knot nematodes, and belongs to the technical field of biopesticides. The L-glutamylglycine can effectively inhibit the infection ability of root-knot nematodes and reduce the harm of the root-knot nematodes to host plants. The L-glutamylglycine provided by the invention has the characteristics of high efficiency, greenness and environmental friendliness, is safe to agricultural products, people, livestock and soil micro-ecology, avoids the residues and pollution risks of traditional chemical pesticides, provides a novel and sustainable green prevention and control strategy for prevention and control of plant root knot nematode diseases, and has a wide application prospect. The method has a wide industrial application prospect in the field of biopesticides.

This application discloses a composite material, its preparation method, and its application, relating to the field of materials technology. The composite material, by mass, comprises 55-75 parts of a matrix resin and 15-25 parts of functional materials. The functional materials include a porous adsorbent, a metal oxide, and a negative ion release agent. The porous adsorbent in the functional materials, due to its large specific surface area, can effectively physically adsorb and enrich organic pollutants such as formaldehyde, catalytically oxidizing them into harmless substances. Negative oxygen ions can charge oxygen molecules in the air, promoting the neutralization, aggregation, and sedimentation of pollutant molecules, or decomposing them. Based on the synergistic effect of the components of the functional materials, the composite material provided in this application can effectively purify air under light-free conditions.

This invention discloses a highly efficient erythromycosis strain that degrades tetracycline antibiotics and its applications, belonging to the field of environmental microbiology technology. The invention provides… Paenirhodobacter enshiensis OTC 2-5, deposited on November 4, 2025, at the China General Microbiological Culture Collection Center (CGMCC), address: No. 3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing, accession number: CGMCC No. 36502. This strain is capable of degrading tetracycline antibiotics such as OTC, exhibiting excellent degradation performance and rapid action under medium-high temperature and neutral to alkaline conditions. This invention provides an effective biodegradation method for the treatment of tetracycline antibiotic pollution in water bodies.

The invention discloses a heterogeneous catalyst, a preparation method and application of the heterogeneous catalyst in synthesis of carbonic ester compounds. The heterogeneous catalyst provided by the invention is MO-Cu-CMNDI, MO represents one of metal oxides such as MgO, Bi2O3, ZnO, CuO, Fe2O3, ZrO2, Ga2O3, CeO2, SiO2, Al2O3 and TiO2, preferably CeO2, and Cu-CMNDI represents a metal coordination network material [Cu (CMNDI) (H2O) 4] synthesized by CuSO4 and N, N '-bis (carboxyl methyl)-1, 4, 5, 8-naphthalimide (CMNDI). When the MO-Cu-CMNDI catalyst is used for the synthetic reaction of the carbonic ester compound, the catalytic activity is high, the reusability is good, and the yield of the reaction is improved.

The present invention relates to a recycled PP composite material and a preparation method thereof, and belongs to the technical field of plastic preparation. The composite material comprises the following raw materials in parts by weight: 100 parts of recycled PP particles, 20-35 parts of modified fillers, and 0.5-1.5 parts of lubricants; the modified filler is a modified coated nano-calcium carbonate, which is obtained by transesterification reaction of coated nano-calcium carbonate formed by emulsion polymerization of hydrophobic nano-calcium carbonate and mixed monomers and an activated light stabilizer; the mixed monomers include methyl methacrylate and 10-undecenoic acid methyl ester. The present invention solves the problem that brittle fracture is prone to occur during the subsequent processing of recycled PP materials, and the thermal stability of the finished product made thereof is insufficient by introducing the modified filler.