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High-performance processing technology and equipment for polymer disentanglement via supercritical fluid micro-explosion
The invention discloses a high-performance processing technology and equipment for polymer disentanglement through supercritical fluid micro-explosion. Supercritical fluid penetrates into molecular chain clusters to realize micro-explosion and disentanglement of single molecular chains while orienting the chain segments. Through kneading and exhausting simultaneously, the orientation effect formed by micro-explosion is maintained, secondary orientation is completed, and
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A polymer containing dynamic covalent bonds, its preparation and foam materials
The invention provides poly(arylene ether ketone/sulfone) containing dynamic covalent bonds, and a polymer foam material prepared by carbon dioxide foaming using the polymer as matrix resin. Dynamic crosslinking structures are introduced into the molecular chains of poly(arylene ether ketone/sulfone), which greatly improves the mechanical properties of the foam material while retaining the intrinsic thermoplastic processability
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A method for preparing aging-resistant polyglycolic acid
The invention discloses a preparation method of aging-resistant polyglycolic acid. The method includes the following steps: pre-polymerizing molten glycolide-containing fluid premix in a static mixer to obtain glycolic acid prepolymer; conducting final polymerization of the prepolymer through a viscosity increasing device to prepare high-molecular-weight polyglycolic acid. Area Code: CN Application Number: CN202110691905.8
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A pre-impregnated side-feeding device and method
The invention provides a pre-impregnation side feeding device and method. The device includes an extruder main body with a main barrel for material mixing, melting, conveying and extrusion, a material guiding unit and a side feeding unit. The material guiding unit draws molten materials from the main barrel and transports them to the side feeding
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An oil gel of patchouli oil, its preparation method and oral dosage form containing it
The invention relates to an essential oil gel of patchouli oil. The oil gel contains no less than 45% patchouli oil, with patchoulol content ≥9% and pogostone content ≥0.3%. The formula is simple and suitable for large-scale industrial production. It features high drug loading, enhanced efficacy, odor masking effect on irritant volatile components, adjustable drug
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An extruder with a locking system with a self-locking device
The invention relates to an extrusion device comprising at least one first head, a processing section and a first locker. The first head is adapted to connect with a first extruder, and the processing section is provided with a forming nozzle. The first locker applies clamping force to press the first head against the processing
