13results about How to "Improve physical stability" patented technology

This invention relates to the field of pesticide technology, specifically to a fungicidal composition, its preparation method, and its uses. The invention provides a fungicidal composition comprising an active ingredient, a first functional component, a second functional component, and an adjuvant; the active ingredient comprises fluthiazopyrone and cyazofamid; the first functional component comprises at least one selected from silica, titanium dioxide, and zinc oxide; the second functional component comprises at least one selected from citric acid, acetic acid, benzoic acid, urea, and triethanolamine. By introducing specific first and second functional components, this invention synergistically works with the active ingredient, effectively overcoming the key defects of fluthiazopyrone's easy photodegradation and cyazofamid's easy hydrolysis, thus improving the stability of the compound formulation; while ensuring the excellent control efficacy and resistance management advantages of both against oomycete diseases such as grape downy mildew, it extends the duration of action and weather resistance of the agent, providing a more stable, efficient, and long-lasting solution for field application.

This invention belongs to the field of QR code printing control technology, specifically disclosing a variable QR code printing control method. This method includes: importing order parameters containing QR code printing position, content type, and application scenario characteristics; real-time acquisition of the flatness and colorimetric features of the substrate surface; quantifying and generating integrity assurance coefficient and clarity maintenance coefficient based on flatness features and printing position; quantifying and generating color stability coefficient and readability maintenance coefficient based on colorimetric features; comparing and verifying each quality indicator with quality indicator thresholds dynamically generated based on order parameters; if verification passes, printing is executed; otherwise, printing parameters are dynamically adjusted before printing is executed. This invention, through multi-feature fusion and dynamic verification adjustment, significantly improves the printing quality, physical durability, and visual readability of QR codes in complex outdoor environments, and overall enhances the adaptability of the QR code printing process.

The application discloses a water-based coating remover for aviation composite paint, which comprises the following components in percentage by mass: paint removal composition 10-25%, surfactant 1-6%, chelating agent 1-5%, corrosion inhibitor 1-5%, stabilizer 0.1-1%, and water; the paint removal composition comprises a paint removal degradation component and a penetrating agent, and the paint removal degradation component is selected from sodium hydroxide and monoethanolamine at a mass ratio of 1:1-1:2. The water-based coating remover for aviation composite paint is environmentally friendly, has low corrosion, is suitable for ultrasonic removal working conditions, has excellent chemical and physical stability in a severe cavitation environment, can remove high-performance organic-inorganic composite paint coatings attached to the surfaces of key components such as high-pressure turbine discs, low-pressure turbine discs and sealing rings, ensures that the paint removal process is continuous and efficient and does not cause damage to expensive base materials, and is suitable for the maintenance and removal of coatings of high-temperature components such as aircraft engines.

This invention discloses a broadband linear graded filter for spectral imaging, possessing high transmittance and excellent stray light suppression performance. The filter employs a multilayer thin-film structure, including an interference cutoff film system above a substrate and a narrowband filter film system below. The narrowband filter film system achieves high transmittance in the 500-800 nm wavelength range through an optimized design using multiple alternating combinations of high and low refractive index materials. The interference cutoff film system effectively suppresses stray light through its long-pass and short-pass design.

This invention provides a dielectric ion exchange membrane, its preparation method, and its application, relating to the field of membrane material preparation technology. The dielectric ion exchange membrane includes a substrate and an ion exchange membrane coated on the surface of the substrate. The ion exchange membrane comprises polyvinyl alcohol, an ion system, a UV-curable monomer, and a photoinitiator. By using UV curing technology, the crosslinking process and solvent evaporation can be precisely controlled during membrane formation, ensuring a smooth membrane surface and avoiding membrane curling caused by uneven shrinkage. The introduction of the UV-curable monomer is to form a crosslinked network under UV irradiation, inhibiting macroscopic structural flow and creep of the ion exchange membrane during film formation and service, improving the mechanical stability of the membrane, and forming a stable crosslinked structure, thereby forming a structurally stable dielectric ion exchange membrane and effectively preventing membrane curling during drying.

The application provides a Sn58Bi low-temperature soldering tin ball surface treatment agent and a preparation method thereof, and relates to the technical field of metal surface treatment.The Sn58Bi low-temperature soldering tin ball surface treatment agent is composed of tin ball activators (diethylenetriamine pentaacetic acid and ethylenediamine tetraacetic acid), a film forming agent, a surfactant, a dispersing agent, an antioxidant, a defoaming agent, a stabilizer, a preservative, deionized water and the like.The surface treatment agent can effectively improve the soldering reliability of the Sn58Bi soldering tin ball, prolong the service life of the soldering tin ball, has good oxidation resistance and corrosion resistance under the premise of not affecting the soldering performance, and is suitable for various complex working environments.Meanwhile, the preparation process of the Sn58Bi low-temperature soldering tin ball surface treatment agent is simple, convenient to use, has good physical stability after film forming, can avoid oxidation and the invasion of pollutants during long-term storage of the soldering tin ball, and improves the quality of the soldering tin ball.

The application relates to the field of material defoaming treatment, in particular to a device for reducing silicone calendering bubbles, which comprises a uniform feeding mechanism, a sealing connection mechanism, a defoaming guide mechanism and a defoaming discharging mechanism; the uniform feeding mechanism comprises a feeding pipe and a flow control piece; the feeding end of the feeding pipe is sealingly connected with a rubber material barrel; the flow control piece is installed on the feeding pipe and used for controlling the flow of silicone in the feeding pipe; the discharging end of the feeding pipe is sealingly connected with the defoaming guide mechanism through the sealing connection mechanism; the defoaming discharging mechanism is installed on the discharging end of the defoaming guide mechanism and is used for defoaming treatment of silicone. The structure can improve the stability of silicone flow guide, promote the discharge of bubbles of silicone, and effectively reduce the bubbles generated in the silicone calendering process.

This invention relates to the field of enameled wire production technology, and more particularly to an insulating varnish and enameled wire based on nanocomposite materials. The insulating varnish comprises the following components by weight percentage: polyester resin: 40-60%, amide-imide resin: 15-25%, xylene: 10-25%, N-methylpyrrolidone: 5-15%, nano-silica: 1.0-5.0%, nano-alumina: 0.5-2.0%, fluorinated surfactant: 0.5-2.5%, epoxy resin tackifier: 0.2-2.0%, antioxidant: 0.2-0.5%, and ultraviolet absorber: 0.1-0.5%. This invention significantly improves the mechanical strength, abrasion resistance, and heat resistance of the varnish layer by introducing nano-silica and nano-alumina; improves the wettability and adhesion of the varnish by adding fluorinated surfactant; and enhances the adhesion and durability of the varnish layer by using epoxy resin tackifier.

The invention relates to the field of food and medicine. Specifically, the invention relates to a crystal form of pyrroloquinoline quinone disodium salt and a preparation method and application thereof. The crystal form of the pyrroloquinoline quinone disodium salt provided by the invention at least has the following excellent characteristics: good stability, high purity, low hygroscopicity, high melting point, good solubility, good dissolution, good fluidity, high crystallinity, good mechanical stress stability, good processability such as good compressibility, good crystal morphology, good pressure resistance, stable storage and good stability. And crystal transformation in the development process and storage is avoided, and the preparation method is simple and reliable and has relatively high development value.

The invention provides an ensafenetine pharmaceutical composition as well as a preparation method and application thereof. The pharmaceutical composition is prepared from the following components: empastine or pharmaceutically acceptable salt of empastine, a surfactant and water. The pharmaceutical composition shows excellent physical stability and chemical stability under low-temperature and high-temperature conditions. The pharmaceutical composition has remarkable advantages in the aspects of droplet size distribution, fine particle dosage, delivery rate, total delivery amount and the like, is good in safety and low in irritation, and is beneficial to improving the inflammatory cell infiltration condition of a focus. In addition, the preparation method of the pharmaceutical composition is simple and convenient, and is suitable for large-scale production.

The application discloses a high-stability peach gum polysaccharide nanoemulsion loaded with hydrophobic functional molecules and a preparation method thereof, and relates to the field of natural polymer materials and nanotechnology. The peach gum polysaccharide is chemically modified by thioctic acid, the balance of hydrophilicity and hydrophobicity in the molecular structure is effectively regulated, and thus the peach gum polysaccharide is endowed with excellent self-emulsifying capacity. A plurality of hydrophobic functional components can be efficiently loaded without additional addition of synthetic emulsifiers, the obtained nanoemulsion system is uniform and stable, and has good biocompatibility and slow-release performance. The emulsification and active component loading process are integrated in one step, the process flow is simplified, the loss of active components in multi-step operation is effectively avoided, the preparation efficiency and practicability are significantly improved, and a new way is provided for efficient and safe delivery of natural functional components.

The present application relates to the field of drug crystal forms, in particular to a new crystal form of a compound of formula 1 and a preparation method thereof. The new crystal form of the compound of formula 1 of the present application has excellent physical stability and chemical stability, high solubility and bioavailability, good flowability and low hygroscopicity. In addition, the new crystal form of the compound of formula 1 of the present application has mild preparation conditions, simple operation, good process reproducibility, high purity and is suitable for industrial production.