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Repair method of retired lithium iron phosphate positive electrode material
ActiveCN119581720Arepair structurelow costElectrode thermal treatmentPositive electrodesLithium iron phosphateDiammonium phosphate
The invention discloses a decommissioned lithium iron phosphate positive electrode material green restoration upgrading regeneration technology, which comprises the following steps: completely dissolving a lithium salt and tea polyphenol in a solvent to obtain a reduction restoration agent solution; mixing the retired lithium iron phosphate positive electrode material with the direct reduction repairing agent solution to obtain a mixed suspension; putting the turbid liquid into a reaction kettle, heating in a drying oven, keeping the temperature for a period of time, cooling, collecting and washing to obtain a precipitate; and mixing the precipitate with an aluminum nitrate solution and a diammonium hydrogen phosphate solution, evaporating to dryness, adding a trace amount of lithium salt, and annealing in a nitrogen atmosphere to obtain the upgraded and regenerated aluminum phosphate / lithium phosphate coated lithium iron phosphate positive electrode material. According to the upgrading, repairing and regenerating technology, rich natural green reducing and repairing agent-tea polyphenol is used, and the technology is environmentally friendly and can be recycled and reused; meanwhile, the aluminum phosphate / lithium phosphate coating layer is low in price, the electrochemical performance of the lithium iron phosphate waste powder is obviously repaired and improved, and the method is suitable for industrial popularization and application.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
Iron bucket shaping device
ActiveCN224372448Urepair structurerecovery strength
Owner:GANSU HERUI PETROCHEMICAL TECHNOLOGY CO LTD
Post-crosslinking type silane coupling agent suitable for silicone adhesive, water-resistant ultraviolet-resistant silicone adhesive and application of water-resistant ultraviolet-resistant silicone adhesive
PendingCN121974945Asimple methodgood repeatabilityGroup 4/14 element organic compoundsNon-macromolecular adhesive additivesPolymer scienceSilanes
The invention provides a post-crosslinking type silane coupling agent, a water-resistant ultraviolet-resistant silicone adhesive and application of the water-resistant ultraviolet-resistant silicone adhesive and belongs to the technical field of sealants, and the post-crosslinking type silane coupling agent suitable for the silicone adhesive is bis (diisopropyl ketoxime) dimethoxysilane. The water-resistant ultraviolet-resistant silicone adhesive is prepared from polysiloxane resin, polydimethylsiloxane, polyether modified silicone oil, an ethylenediamine tetraacetic acid chelating agent, color paste, reactive silicone oil, a first silane coupling agent, an organic tin catalyst and a post-crosslinking silane coupling agent.
Owner:BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
Hair repairing composition as well as preparation method and application thereof
ActiveCN119548445Ahigh glossImprove supplenessCosmetic preparationsHair cosmeticsBiotechnologyBifidobacterium
The invention discloses a hair repairing composition as well as a preparation method and application thereof, and relates to the technical field of daily chemicals. The hair repairing composition provided by the invention comprises 0.1-0.3 part of a dendrobium officinale extract, 0.15-0.4 part of a tremella extract, 10-60 parts of galactose yeast-like bacterium fermentation product filtrate and 39.3-89.75 parts of bifidobacterium fermentation product filtrate, and a polysaccharide biological film is formed on the surface of hair by utilizing the synergistic effect of the four components, so that the loss of moisture in the epidermal layer of the hair can be prevented, and the hair repairing effect is improved. And moisture in air or a solvent can be absorbed, so that hair cuticles are closed, and meanwhile, active substances rich in the four components can further penetrate into the hair to nourish the hair. Therefore, the hair repairing composition provided by the invention can improve the hair glossiness, improve the hair frizzy condition and reduce the combing power of dry hair and wet hair.
Owner:完美(广东)日用品有限公司 +2
A process for the preparation of hydrogenated castor seed oil and its skin care composition
This invention belongs to the field of daily chemical products, specifically relating to a method for preparing hydrogenated castor seed oil and its skincare composition, comprising the following steps: S1. Crushing castor seeds and sieving them to obtain castor seed powder; S2. Treating the castor seed powder in a low-frequency pulsed electric field and intermittent microwave to obtain pretreated castor seed powder; S3. Mixing the pretreated castor seed powder with a compound enzyme preparation and performing subcritical extraction to obtain an extract; S4. Filtering the extract and distilling it to obtain a refined filtrate; S5. Mixing the refined filtrate with a palladium-on-carbon catalyst to obtain a semi-finished product; S6. Passing the semi-finished product through a fixed bed of activated carbon to obtain a primary filtrate, which is then filtered to obtain hydrogenated castor seed oil. The preparation method of this invention effectively retains the natural active ingredients in castor seed oil, thereby improving the effectiveness of the prepared hydrogenated castor seed oil, reducing organic solvent and heavy metal residues, and facilitating the application of hydrogenated castor seed oil in skincare compositions.
Owner:OPAL COSMETICS HUIZHOU