21 results about "POWDERED CELLULOSE" patented technology

The invention discloses a preparation method of cellulose micron sheet powder and a high-haze transparent film thereof, which comprises the following steps: S1, crushing bamboo pulp foil to obtain a cellulose raw material; s2, placing in a sulfuric acid solution, stirring in an oil bath for hydrolysis, adding water after reaction, taking out, and placing in a polytetrafluoroethylene hydrothermal synthesis reaction kettle for auxiliary reaction to obtain a milk white suspension; s3, centrifuging and dialyzing the milk white suspension until the pH is nearly neutral; s4, performing ultrasonic treatment on a product in S3 by adopting an ultrasonic cell crusher, and performing freeze drying to obtain powdery cellulose micron sheets; according to the invention, through reasonable optimization of acidolysis and hydrothermal process parameters, the powdery cellulose micron sheet with uniform thickness and no irreversible keratinization defect is obtained, has excellent redispersibility after rehydration, can be compounded with polyvinyl alcohol to form a high-haze transparent film, and overcomes the defect that in the subsequent drying process of sulfuric acid hydrolysis of micro-nano cellulose, the film is not easy to form, and the film is not easy to form. The problems of irreversible agglomeration and poor rehydration redispersibility caused by hydrogen bond induction are solved.

The application discloses a kind of imitative spider silk cellulose gel fibers and its preparation method and application, method includes: using DMAc to activate cellulose powder and obtain activated cellulose powder;Activated cellulose powder is added in DMAc / LiCl solvent and dissolved, and obtain cellulose solution;Using microfluidic equipment, cellulose solution is injected into deionized water and solidified, and washing is obtained cellulose gel fiber;Cellulose gel fiber is soaked in PVA-PAA precursor liquid, and then placed under ultraviolet lamp irradiation, then freeze and thaw, and obtain cellulose / PVA / PAA hydrogel fiber;Cellulose / PVA / PAA hydrogel fiber is pre-stretched, then soaked in CuSO4 solution, and then washed with deionized water after soaking, and obtain imitative spider silk cellulose gel fiber.The imitative spider silk cellulose gel fiber provided by the application has strong toughness, flexible conductivity and environmental resistance.

The disclosure provides an oral composition adapted for oral use that includes at least one non- tobacco plant fiber material or powdered cellulose in addition to one or more active ingredients, flavorants, or combinations thereof, such as compositions including a non-tobacco plant fiber material or powdered cellulose having a D90 particle size of 120 microns or less. In some embodiments, the non-tobacco plant fiber material is sugarcane fiber. The oral composition can be, for example, a pouched product wherein the oral composition is a particulate composition enclosed within a water-permeable pouch.

The invention belongs to the technical field of extraction and detection, and particularly relates to a high-efficiency extraction and detection device for qiongzhuea tumidinoda powder cellulose enzymolysis, which comprises a detection table and a support frame, the detection table is fixedly connected to the support frame, and one side of the upper end surface of the detection table is provided with a high performance liquid chromatograph. The detection table is also provided with a qiongzhuodon powder pretreatment assembly; the qiongzhuodon powder pretreatment assembly comprises a mixing barrel fixedly connected to one side of the upper end face of the detection table, a barrel cover is rotationally arranged on one side of the upper end of the mixing barrel, a supporting plate is fixedly connected to the upper side of the inner cavity wall of the mixing barrel, and a throwing-out barrel is rotationally arranged in the middle of the supporting plate. The qiongzhuea tumidinoda powder pretreatment assembly is utilized to cut the agglomerated qiongzhuea tumidinoda powder before the qiongzhuea tumidinoda powder is mixed with the alkali liquor, so that the volume of the qiongzhuea tumidinoda powder is reduced, and non-uniform reaction caused by agglomeration of the qiongzhuea tumidinoda powder is avoided.

To provide a nasal application agent for suppressing allergic reactions of the human body caused by water-soluble allergens.SOLUTION: A first step I comprises mixing and stirring Vaseline with a vegetable oil, and a first step II comprises mixing and stirring a sugar alcohol such as mannitol with a thickener such as finely powdered cellulose. In a second step after the first steps I and II, a gel I comprising the stirred Vaseline and vegetable oil such as olive oil, and a gel II comprising the stirred sugar alcohol and thickener are mixed and stirred together. The resulting gel has both hydrophilic and hydrophobic properties, and the allergen-blocking gel for nasal application has an effective molar osmotic pressure higher than that of body fluids, i.e., 330 mOsm / L or more. Furthermore, by adding a herb oil from the Lamiaceae family, the allergen-blocking gel can also provide "refreshing nasal sensation and, by the herb oil from the Lamiaceae family, alleviated inflammation of the nasal mucosa".SELECTED DRAWING: Figure 1

The disclosure provides an oral composition adapted for oral use that includes at least one non- tobacco plant fiber material or powdered cellulose in addition to one or more active ingredients, flavorants, or combinations thereof, such as compositions including a non-tobacco plant fiber material or powdered cellulose having a D90 particle size of 125 microns or higher in combination with a second filler. In some embodiments, the non-tobacco plant fiber material is sugarcane fiber. The oral composition can be, for example, a pouched product wherein the oral composition is a particulate composition enclosed within a water-permeable pouch.

This invention belongs to the field of biodegradable plastic preparation technology, specifically relating to a method for preparing and applying bamboo powder-filled reinforced biodegradable plastics. Cellulose in bamboo powder is extracted using a eutectic solvent and then compounded with polylactic acid (PLA) and polybutylene adipate / terephthalate (PBAT) to prepare high-performance biodegradable plastics. Bamboo powder, as a natural and renewable resource, has broad application potential, but its use in plastics faces problems of poor dispersibility and compatibility. This invention treats bamboo powder with a eutectic solvent, breaking the hydrogen and chemical bonds between lignin, hemicellulose, and cellulose, thus improving the extraction efficiency and purity of the bamboo powder. The extracted bamboo powder cellulose, compounded with PLA and PBAT, significantly improves the mechanical and degradation properties of the plastic. This composite material exhibits excellent performance in tensile strength and impact resistance, can achieve full degradation, and can reduce the long-term environmental impact of plastic waste. This paper utilizes bamboo powder, PLA, and PBAT to prepare biodegradable plastics, which has the advantages of wide availability of raw materials, low cost, and easy film formation, providing a green and environmentally friendly material and innovative process for the development of biodegradable plastics.

Delayed-release micropellet particles containing γ-aminobutyric acid, characterized in that it comprises a pellet core and a coating layer surrounding the pellet core, wherein the pellet core contains a physiologically active substance, the physiologically active substance being gamma-aminobutyric acid; the pellet core comprises, calculated in parts by weight, the following components: 15 to 40 parts of gamma-aminobutyric acid, 30 to 55 parts of a filler, 1 to 30 parts of a lubricant, 0.5 to 5 parts of an anti-caking agent; wherein the filler comprises at least one of microcrystalline cellulose, powdered cellulose, starch and its derivatives, hydroxypropyl cellulose, hydroxypropyl methylcellulose, low-substituted hydroxypropyl cellulose, sugar or sugar alcohols and solid fruit and vegetable drinks; wherein the lubricant comprises at least one of talc, magnesium stearate, stearic acid, glycerol and leucine; wherein the anti-caking agent comprises at least one of magnesium carbonate, tricalcium phosphate, dicalcium phosphate and silicon dioxide.

The utility model belongs to cellulose powder processing technical field, concretely relates to a cellulose powder packing and weighing device based on vibration function, and the device includes platform scale, platform scale sets up on platform scale base, and the top of platform scale is provided with the jolt ramming table, and the jolt ramming table is connected with vibration motor electrically, and vibration motor and platform scale are connected with control system electrically, and the jolt ramming table is connected with the conveyer platform, and one side of conveyer platform is provided with support, and support sets up above jolt ramming table, and the top of support is provided with feeding device, the device integrates weighing and vibration function, realizes the continuous operation of completing feeding, weighing and compaction on the same station, can automatically weigh after feeding, triggers vibration compaction if the weight is insufficient, weighs again after compaction, circulates until reaches the packing requirement, avoids the traditional process to need to transfer the packing bag frequently between weighing platform and jolt ramming table, improves the packing efficiency, reduces manual intervention, ensures the accuracy and consistency of packing weight.

The invention discloses a preparation method of a sterile dressing, and belongs to the technical field of wound dressings. The invention discloses a preparation method of a sterile dressing. The preparation method comprises the following preparation steps: S1, preparing modified menthyl citrate; s2, mixing choline chloride and citric acid to obtain a DES solvent; s3, carrying out alkali treatment on the bacterial cellulose membrane to obtain bacterial cellulose powder; s4, uniformly mixing and stirring a DES solvent and bacterial cellulose powder, then adding the modified menthyl citrate, uniformly stirring, then adding dopamine hydrochloride, and uniformly stirring to obtain a mixed solution; and S5, pouring the mixed solution into a mold, slowly pouring an AgNO3 solution, carrying out low-temperature standing reaction, carrying out heating cross-linking reaction, soaking, cleaning, finally soaking in a sterile PBS solution, and carrying out low-temperature preservation to obtain the sterile dressing. The sterile dressing provided by the invention has the advantages of efficient antibiosis, active healing promotion, long-acting slow release, excellent mechanical property and excellent biological safety.

Powdered thermoplastic composite material comprising a bio-sourced filler One aspect of the invention relates to a powdered thermoplastic composite material, consisting of at least 90% by weight of a mixture of a thermoplastic matrix and a bio-sourced filler, the bio-sourced filler being composed of one or more powdered bio-sourced materials. The particle size of the thermoplastic composite material is for example such that 65.5% of the grains (by number) have a diameter strictly less than 32 µm and that 34.4% of the grains (by number) have a diameter of between 32 and 63 µm. According to another example, its particle size is such that D10 = 20 µm, D50 = 70 µm and D90 = 140 µm, preferably such that D10 = 10 µm, D50 = 30 µm and D90 = 70 µm.The bio-based filler mainly comprises powdered mycelium, powdered walnut shell, powdered olive kernel, powdered cellulose nanofiber, powdered starch, powdered alginate, powdered carbon black, or a mixture thereof. Figure to be published with the abstract: Figure 5.

The application discloses a method for preparing high fibrillation lyocell fibers from waste glue hemicellulose, and specifically comprises the following steps: waste glue liquid from filter backwashing is soaked in soft water to make cellulose coagulate and precipitate, NMMO solvent is washed out to be recycled and reused, and the washed waste cellulose is crushed and then mixed to prepare pulp; in the premixing stage, a separating agent material is uniformly added into the premixed pulp, and then heating, pressure reduction, evaporation and dehydration are carried out to obtain spinning dope with a cellulose concentration of 7-16 wt%; the spinning dope is extruded from a spinneret, immersed in an air bath, and then immersed in a coagulation bath containing NMMO aqueous solution to be coagulated and formed into nascent fiber bundles; and the nascent fiber bundles are subjected to drafting, washing, cutting, washing, oiling and drying to obtain high fibrillation lyocell fibers. The application realizes recycling of waste glue generated in the production process of the lyocell fiber industry, and to some extent, reduces the problems of high energy consumption and long time in the preparation of high fibrillation lyocell fibers.

To provide whipped cream that achieves enhanced storage stability such as suppression of syneresis and improved shape retention by means of a cellulose-based stabilizer, while also allowing excellent texture and flavor.SOLUTION: An emulsified composition for whipped cream comprises a cellulose-based stabilizer and plant-derived milk, wherein the cellulose-based stabilizer comprises carboxymethyl cellulose and a salt thereof or powdered cellulose, and wherein the plant-derived milk is soymilk.SELECTED DRAWING: None

One aspect of the invention relates to a powdered thermoplastic composite material consisting of at least 90% by weight of a mixture of a thermoplastic matrix and a bio-based filler, the bio-based filler being composed of one or more powdered bio-based materials. The particle size of the thermoplastic composite material is, for example, such that 65.5% of the grains (by number) have a diameter strictly less than 32 μm and in that 34.4% of the grains (by number) have a diameter of between 32 and 63 μm. According to another example, the particle size of said thermoplastic composite material is such that D10 = 20 μm, D50 = 70 μm and D90 = 140 μm, preferentially such that D10 = 10 μm, D50 = 30 μm and D90 = 70 μm. The bio-based filler predominantly comprises powdered mycelium, powdered walnut shell, powdered olive pit, powdered cellulose nanofiber, powdered starch, powdered alginate, powdered carbon black, or a mixture thereof.

The present invention discloses a recyclable cellulose radiative cooling material and a preparation method thereof, relating to the technical fields of optics and materials science and engineering. The preparation method comprises the following steps: mixing cellulose fibers and cellulose powder, stirring, to obtain a cellulose mixed suspension; coating the suspension, and drying the suspension to obtain the cellulose radiative cooling material. The refrigeration material of the present invention is prepared at room temperature, employing a simple process, exhibits high solar reflectivity and infrared thermal radiation emissivity, and can achieve excellent radiative cooling performance. Furthermore, the cellulose radiative cooling material can be recycled by simply heating and stirring, making it significantly low-cost and environmentally friendly.

A solid powder cosmetic that is smooth and is resistant to impact. The solid powder cosmetic contains a cellulose powder having an average particle size of 1 to 25 μm and an aspect ratio of 0.6 to 0.9, wherein the cellulose powder is an aggregate containing an additive and fine fibrous cellulose having an average fiber width of 1 to 500 nm.

The invention relates to the technical field of building decorative walls, and particularly discloses a construction method of an assembly type decorative shared wall, which comprises three steps of factory modular prefabrication production, field installation and lossless disassembly and assembly and recombination. A factory adopts a steel plate component assembling mold to form a gel coat outer layer, silica powder cellulose foaming cement is filled and maintained, a cavity, a gel coat surface layer and silica powder cellulose foaming cement are formed through steel plate injection, and finally a finished wallboard with concave-convex structures on the two sides and an inner through oval pipeline is manufactured. Heaven and earth components are positioned and installed on site through infrared rays, the wallboards are assembled in a sliding and meshed mode through a mortise and tenon joint structure, water, electricity and circulating air systems are integrated in internal pipelines, component installation grooves are reserved in the wallboards, and the wallboards can be reused in a lossless mode during disassembly and assembly. The problems that a traditional partition wall is long in construction period, large in waste, high in transformation destructiveness, irreversible, low in integration degree and the like are solved, the technical effects of efficient construction, environment friendliness and flexible layout can be achieved, and the partition wall is suitable for various building decoration indoor partition wall projects.

To provide a dentifrice composition capable of exhibiting high cleaning effect on hard tissue surfaces while preventing undesired damage to soft tissue surfaces by providing a difference in brushability between the hard and soft tissue surfaces in the oral cavity.SOLUTION: A dentifrice composition comprising the following components (A) and (B): (A) powdered cellulose; and (B) a total of 14 mass% or more and 60 mass% or less of a sugar alcohol (b1) having a solubility in water of 40 mass% or more at 20°C and a polyhydric alcohol (b2), where the content of a water-insoluble powder (X) other than component (A) is less than 10 mass%.SELECTED DRAWING: None

To provide a powdered cellulose capable of suppressing coloration when used in a resin composition.SOLUTION: The invention provides a powdered cellulose having a particle diameter D.50 of 10-100 μm and a kappa number of 1.5 or less, where the whiteness of the cellulose raw material for the powdered cellulose is 83% or higher. Preferably, the powdered cellulose has a thermal weight loss rate of less than 5% at 110°C to 300°C when heated at a rate of 20°C / min in thermogravimetric analysis (TG).SELECTED DRAWING: None

The objective is to provide a food additive that is low in calories, has excellent texture when added to food, and suppresses the rise in postprandial blood glucose levels. [Solution] A food additive that suppresses the rise in postprandial blood glucose levels, comprising either carboxymethylcellulose or a salt thereof, or powdered cellulose with a particle size of 5 to 150 μm. The food additive that suppresses the rise in postprandial blood glucose levels of the present invention may contain any component as long as it does not impair the blood glucose-suppressing effect or texture of carboxymethylcellulose or a salt thereof or powdered cellulose. The use of the present invention is not particularly limited to food products, but it is preferable to incorporate it into high-carbohydrate foods such as rice and wheat products.