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Antibacterial fresh-keeping packaging film for food packaging and preparation method of antibacterial fresh-keeping packaging film
InactiveCN119613844Apromote oxidationreduce oxidationBio-packagingAntibacterial propertyMaterials science
The invention relates to the technical field of food packaging, in particular to an antibacterial fresh-keeping packaging film for food packaging and a preparation method of the antibacterial fresh-keeping packaging film, and aims at solving the problems that a traditional food packaging film is insufficient in antibacterial performance and not ideal in fresh-keeping effect. According to the preparation method, polyethylene resin and polylactic resin are taken as main raw materials, so that the packaging film is endowed with excellent mechanical property and barrier property, the oxidation process of food can be slowed down, the damage of oxygen to the food is reduced, the loss of nutritional ingredients in the food is prevented, and the freshness and nutritional ingredients of the food can be effectively kept; the modified nano-silver particles are added into the food, so that the growth and metabolic activities of microorganisms such as various bacteria and molds can be effectively inhibited, the risk that the food is polluted by the microorganisms is remarkably reduced, the deterioration of the food due to microbial decomposition is avoided, and the food quality is improved. Therefore, the quality and taste of the food are better maintained, and the shelf life of the food is prolonged.
Owner:GUANGDONG BAOJIALI COLOR PRINTING IND CO LTD
A large-mesh hernia repair patch
The utility model relates to medical supplies technical field discloses a big mesh hole hernia repair patch, including a plurality of medical textile monofilament, a plurality of antibacterial fiber and a plurality of flow fiber, a plurality of medical textile monofilament and a plurality of flow fiber are respectively perpendicular to each other interlaced weaving arrangement, a plurality of antibacterial fiber is respectively arranged in the clearance of a plurality of parallelly arranged flow fiber, the side wall of a plurality of flow fiber is respectively surrounded and is opened a plurality of drainage holes. The utility model provides a plurality of medical textile monofilament, a plurality of antibacterial fiber and a plurality of flow fiber are arranged mutually, and the interval is set to 3mm, can improve the mesh size of patch, does not influence the fibrous tissue production of affected part simultaneously can reduce the rejection phenomenon, and antibacterial fiber has excellent biocompatibility, can be absorbed and metabolized by human body part, contains amino in its molecular structure, makes it have antibacterial activity, can improve the antibacterial effect of patch, prevents the situation of infection.
Owner:BIOHEALTH MEDICAL TECH CO LTD
Low-frequency resonance suppression front wall sound insulation pad
ActiveCN224225009Uquality improvementavoid deformationSynthetic resin layered productsGlass/slag layered productsVibration amplitudeAcoustic energy
The utility model provides a low-frequency resonance suppression front wall sound insulation pad, which relates to the technical field of sound insulation pads and comprises a sound insulation pad main body, and a base material framework layer is arranged in the sound insulation pad main body. According to the utility model, the low-frequency sound absorption layer is made of the open-cell polyurethane foam, and residual low-frequency noise penetrating through the dash panel is treated through friction loss of a porous material or sound energy absorption of the resonant cavity. The mass load layer is made of a high-density PVC plate, the overall mass of the sound insulation pad is increased, the blocking capacity to low-frequency sound waves is improved, the damping vibration attenuation layer is made of asphalt-based damping fins, when the sound insulation pad body is subjected to low-frequency vibration, the materials can convert vibration energy into heat energy and other forms of energy to be dissipated, and therefore the vibration amplitude is reduced, and the sound insulation pad has the good sound insulation effect. And low-frequency noise generated by vibration is reduced. And by arranging the low-frequency sound absorption layer, the mass load layer and the damping vibration attenuation layer, the low-frequency sound wave blocking capacity of the sound insulation pad body is effectively improved.
Owner:JIANGSU SAILUDA AUTOMOTIVE INSULATION MATERIALS CO LTD
A concealed air outlet
ActiveCN116160823Breduce barriergood lookingAir-treating devicesVehicle heating/cooling devicesStructural engineeringMechanical engineering
Owner:NINGBO FULLSTATE AUTOMOBILE PARTS
Dual control burst dispensing inflation extinguishing device
The application relates to the technical field of fire extinguishing balls, and discloses an inflation and spraying type fire extinguishing device with double-control explosion and throwing, which comprises an inner sphere and an outer sphere, a connecting pipe is fixedly connected between the inner sphere and the outer sphere, the inner parts of the inner sphere and the outer sphere are respectively filled with outer-ring fire extinguishing agent and inner-ring fire extinguishing agent, and the inner parts of the inner sphere and the outer sphere are respectively provided with an explosion mechanism and an inflation mechanism. Through double-control driving control, the outer-ring fire extinguishing agent of the fire extinguishing device can be effectively controlled to be sprayed in a larger range under the driving of the explosion mechanism with large explosion power, the spraying range of the fire extinguishing agent is effectively increased, the inner-ring fire extinguishing agent is driven by the inflation mechanism to extinguish fire in a small range around the fire extinguishing device, the small-range fire extinguishing effect can be ensured, the spraying coverage and spraying uniformity of the fire extinguishing agent in different ranges can be ensured, and the fire extinguishing range and fire extinguishing effect of the fire extinguishing device can be effectively ensured.
Owner:JIANGSU JINGTONGJIE SECURITY TECH CO LTD
A valve device
A valve device includes a valve seat assembly and a valve core. The valve seat assembly has a valve cavity, and the valve core is rotatable within the valve cavity. The valve seat assembly also has a first opening, a second opening, and a third opening, with the first and second openings spaced apart around the rotation direction of the valve core. The valve core has a valve core channel, and the third opening communicates with the valve core channel. The valve core channel includes a valve core opening, and both the first and second openings communicate with the same valve core opening. The valve device includes a flow-diverting state, in which the first and second openings communicate with the same valve core opening. This configuration helps to reduce flow resistance during the operation of the valve device.
Owner:ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
Wear-resistant and anti-corrosion material and preparation method thereof, wear-resistant and anti-corrosion plunger rod and preparation method and application thereof
PendingCN121992365Ahigh hardnesshigh strengthPositive displacement pump componentsPumpsInterface layerWear resistance
The invention relates to the field of functional materials, and discloses a wear-resistant anti-corrosion material and a preparation method thereof, a wear-resistant anti-corrosion plunger rod and a preparation method and application of the wear-resistant anti-corrosion plunger rod. Wherein the wear-resistant anti-corrosion coating sequentially comprises a Si interface layer, a nano TiCN layer and a nano SiC layer from the inner interface of the coating to the outer surface of the coating. The wear-resistant and corrosion-resistant material and the wear-resistant and corrosion-resistant plunger rod provided by the invention have excellent wear resistance and corrosion resistance.
Owner:CHINA NAT PETROLEUM CORP +1
A BIPV photovoltaic lightweight component and preparation method thereof
The present invention discloses a BIPV lightweight component and a preparation method thereof, including S1: making a front plate; S2: making a back plate; S3: laying a back plate and a back encapsulation film in sequence from bottom to top on an operating table according to a stacked structure, and placing a battery layer on the laid back encapsulation film to complete the convergence connection, wherein the battery layer includes a plurality of solar cell strings; S4: laying a front encapsulation film and a front plate in sequence from bottom to top on the battery layer, laminating the back plate, the back encapsulation film, the battery layer, the front encapsulation film, and the front plate to form a BIPV photovoltaic lightweight component; S5: after laser cutting, installing a junction box, and testing the performance of the BIPV photovoltaic lightweight component, the BIPV photovoltaic lightweight component is laid flat on the roof. The present application can effectively prevent the problem of lightweight components failing due to power attenuation, can be applied to high humidity environments such as offshore photovoltaic power generation, and has good application prospects.
Owner:武汉美格科技股份有限公司
Electrolyte for inhibiting cyclic gas production of sodium-ion battery as well as preparation method and application of electrolyte
PendingCN119627216AHigh electronegativityReduce contact surfaceGroup 4/14 element organic compoundsElectrolyte accumulators manufactureElectrolytic agentElectrical battery
The invention discloses an electrolyte for inhibiting cyclic gas production of a sodium ion battery and a preparation method and application thereof, and the electrolyte is prepared from the following raw materials in parts by weight: 80-85 parts of a carbonic ester organic solvent, 0.5-5 parts of a negative electrode film-forming additive and 0.5-2.5 parts of a cyano siloxane multifunctional additive. According to the electrolyte disclosed by the invention, a functional additive containing cyano siloxane is used for generating a more stable interfacial film SEI layer on a negative electrode, so that a negative electrode material can be prevented from being stripped at a high temperature, the first coulombic efficiency of the negative electrode is improved, and the rate discharge cycle life of the battery is prolonged.
Owner:HUNAN FARNLET NEW ENERGY TECH CO LTD +1