Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

131results about How to "Long-term storage stability" patented technology

Preparation method of H-grade water-solubility silicon steel sheet paint

The invention discloses a preparation method of a H-grade water-solubility silicon steel sheet paint, which comprises the following steps of: taking raw materials such as 10-20 parts of plant oil, 5-10 parts of polyatomic alcohol, 5 parts of binary acid, 3 parts of trimellitic anhydride, 5 parts of cosolvent, 3 parts of neutralizer, 0.5 part of coupling agent, 30 parts of alcohol, 25 parts of nanometer inorganic packing, 0.15 part of pigment, 5 parts of melamine resin, 0.1 part of flatting agent, 2 parts of dispersing moistening agent, 0.1 part of deforming agent and 10 parts of water according to a weight ratio, and preparing an environmental-friendly product with good combination properties for large generators through the synthesis of alkyd resins, the coupling treatment of the nanometer inorganic packing, the mixing and dispersion of materials such as the inorganic substances and the like in a paint, the grinding of the paint vehicle and the like. The preparation method has the advantages of solving the problems of sedimentation, aggregation and blocking of powder in paint liquid under the condition of high content of inorganic powder, obviously increasing the storage stability of the paint liquid and the hardness of a paint film, effectively reducing the discharge of poisonous and harmful gases in the production process and reducing the harm to the health of human bodies.
Owner:四川东材绝缘技术有限公司

Dealcoholization type double-component silica gel and preparation method thereof

The invention provides a dealcoholization type double-component silica gel. The dealcoholization type double-component silica gel comprises a component A and a component B at the mass ratio of 100:(0.01-2); the component A comprises 100 parts by weight of polydimethylsiloxane, 0-10 parts by weight of a hardness regulator, 0.3-12 parts by weight of a crosslinking agent, and 0.01-0.5 parts by weightof a tackifier; the component B comprises 0.01-2 parts by weight of a catalyst; the crosslinking agent is chosen from an organosilicon compound with a general formula as shown in a formula (I), a lowpolymer of the organosilicon compound with the general formula as shown in the formula (I), or an organosilicon compound as shown in a formula (II), R1, R2, R3, R4, R6 and R7 in the formula are independently chosen from monovalent hydrocarbon radical; R5 is bivalent hydrocarbon radical, the number of carbon atoms of the bivalent hydrocarbon radical is 2-20; a is equal to 0 or 1, b is equal to 0 or 1, and c is equal to 0 or 1. The dealcoholization type double-component silica gel uses the components at the specific contents, the relatively good interaction is achieved; the adhesive property, the durability, the airtightness and the long-term storage stability of a product are excellent at the same time; and the deep solidifying performance is excellent.
Owner:HANGZHOU ZHIJIANG NEW MATERIAL CO LTD +1

Bifunctional starch-based composite nanoparticle as well as preparation method and application thereof

ActiveCN110606995ARich academic contentUniform degree of polymerizationFermentationComposite nanoparticlesINDUCTION TREATMENT
The invention discloses a bifunctional starch-based composite nanoparticle as well as a preparation method and an application thereof. The preparation method comprises the following steps: hydrolyzingstarch to form linear dextrin, and grading the linear dextrin by adopting an alcohol-alcohol gradient precipitation method to obtain linear dextrin with uniform molecular weight distribution; carrying out oxidation treatment on the linear dextrin through an oxidation system to obtain oxidized dextrin; carrying out complexation reaction on the oxidized dextrin and curcumin to form an oxidized dextrin-curcumin complex, so that the oxidized dextrin-curcumin/chitosan hydrochloride composite nanoparticles and chitosan hydrochloride form the oxidized dextrin-curcumin/chitosan hydrochloride composite nanoparticles. According to the method, the aqueous phase solution of the bifunctional starch-based composite nanoparticles containing the gellan is uniformly mixed with the primary emulsion, the obtained double emulsion is subjected to calcium ion induction treatment to obtain the double emulsion gel, and the double emulsion gel has good oxidation resistance and long-term storage stability andcan be applied to the fields of protection of nutritional ingredients, drug delivery, preparation of cosmetics and the like.
Owner:HEFEI UNIV OF TECH

Method for preparing efficient and stable inorganic perovskite quantum dots by using double-layer ligand

ActiveCN112175613AImprove surface coverage and stabilityAchieve efficiency along with long-term storage stability and water resistanceNanoopticsLuminescent compositionsTert-butylbenzeneOctadecene
The invention discloses a method for preparing efficient and stable inorganic perovskite quantum dots by using a double-layer ligand. The method comprises the following steps of: adding lead halide, didodecyl dimethyl ammonium bromide, organic amine, octadecene, tert-butylbenzene and cesium 4-dodecylbenzene sulfonate into a hydrothermal reaction kettle under high temperature and high pressure, carrying out hydrothermal reaction to obtain an inorganic perovskite quantum dot solution, adding ethyl acetate into the perovskite quantum dot solution, performing purifying, conducting centrifuging toremove the supernatant, and dispersing the precipitate in methylbenzene, and collecting a methylbenzene solution of the perovskite quantum dots to obtain a high-stability inorganic perovskite quantumdot methylbenzene solution. According to the invention, a double-shell layer is formed on the surface of the perovskite nanocrystal to serve as a protective layer by utilizing a double-ligand synergistic effect, so that the storage and humidity stability of the perovskite nanocrystal can be improved, and the prepared perovskite quantum dots are high in quantum efficiency, high in stability and suitable for the field of nuclear batteries.
Owner:NANJING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products