26results about How to "Promote swelling" patented technology

The present invention provides a slow-release fertilizer composite hydrogel and a preparation method and application thereof, belonging to the technical field of slow-release fertilizers. The slow-release fertilizer composite hydrogel comprises the following raw materials in parts by weight: 2 to 58 parts of lignocellulose nanofiber suspension, 0.05 to 0.15 parts of clinoptilolite, 5 to 15 parts of acrylic acid, 5 to 15 parts of acrylamide, 1 to 2 parts of initiator, 0.1 to 0.3 parts of cross-linking agent and 5 to 15 parts of urea. The present invention also provides a preparation method of the slow-release fertilizer composite hydrogel and its application in agricultural planting. The slow-release fertilizer composite hydrogel of the present invention has good overall stability, presents an obvious porous structure, has small internal pores and uniform pores, has good water absorption, swelling and water retention effects, has ideal controlled release performance and urea slow release effect, and can be well used in the planting of agricultural crops and forestry plants, as well as the ecological restoration of difficult sites in urban and rural areas.

The invention discloses a polyester blended fabric with anti-pilling performance and a preparation method thereof, and belongs to the technical field of polyester blended fabric finishing. The invention solves the problem of poor anti-pilling performance of polyester blended fabrics. The invention immerses the polyester blended fabric in a polydopamine solution to increase the charge distribution, roughness and surface area of ​​the polyester fiber surface, and then performs fiber surface modification treatment in a solution containing sodium bicarbonate, urea and sodium chloride, and uses urea and sodium chloride to swell the polyester fiber molecular chain, further increase the surface area of ​​the polyester fiber and reduce the orientation degree, so that bicarbonate ions fully penetrate into the polyester fiber, making it easier for bicarbonate ions to react with the polyester fiber, reducing the glass transition temperature of the polyester fiber, partially hydrolyzing it, and finally reducing the strength of the polyester fiber and making the surface rough, thereby improving the anti-pilling performance of the polyester blended fabric under the effect of reducing the fiber strength and increasing the friction coefficient.

This invention relates to the field of traditional Chinese medicine (TCM) technology, and discloses a TCM composition for treating cachexia and its preparation method. The composition comprises five grains (a type of insect), Astragalus membranaceus, stir-fried Atractylodes macrocephala, Polygonatum sibiricum, Lycium barbarum, Ophiopogon japonicus, Citrus reticulata peel, Panax notoginseng, and Glycyrrhiza uralensis. Stir-fried Atractylodes macrocephala can be replaced with Poria cocos, Ophiopogon japonicus can be replaced with Polygonatum odoratum, and Citrus reticulata peel can be replaced with Amomum villosum. This formula is based on the principle of "strengthening the body's resistance, detoxifying and removing blood stasis," enhancing the effects of invigorating the spleen and stomach, promoting body fluid production and moistening dryness, while avoiding greasy and cloying substances that may hinder digestion. The preparation method involves cleaning, pulverizing, decocting, extracting, and drying the raw materials to obtain granules. This composition can be used to treat cachexia caused by various tumors such as lung cancer and liver cancer. Animal experiments have verified that it can significantly increase patients' food intake, improve cancer-related fatigue, inhibit tumor growth, alleviate muscle atrophy and splenomegaly, regulate blood routine, and improve anemia and immune function, providing a safe and effective option for the treatment of cachexia.

The utility model discloses a leather shoes with massage function, which comprises a leather shoe composed of a shoe sole and a shoe body, the upper surface of the shoe sole is fixedly connected with an insole, one end of the upper surface of the insole is fixedly connected with a plurality of first protrusions, the other end of the upper surface of the insole is fixedly connected with a second protrusion, one end of the shoe body is fixedly connected with a wear-resistant pad, and the lateral wall surface of the shoe body is provided with a plurality of air holes. The leather shoes with massage function can accelerate blood circulation and effectively improve foot swelling caused by long sitting or standing, relieve whole body fatigue, reduce fatigue during walking, and improve the comfort after wearing the leather shoes, which is beneficial to the wearing and working.

The invention discloses a carrageenan-based adsorption material, a preparation method thereof and application of the carrageenan-based adsorption material in antibiotic / heavy metal dual adsorption, and belongs to the technical field of high polymer materials. The preparation method comprises the following steps: (1) extracting natural melanin from apricot shells; (2) performing esterification reaction on kappa ca by using an Ma photosensitive group to synthesize Ma-kappa ca; and (3) grafting the extracted natural melanin into the Ma-kappa ca network to prepare the melanin / Ma-kappa ca porous gel adsorption material. On the basis of potassium ion crosslinking, chemical functionalization is carried out on kappa ca by utilizing a photosensitive group of methacrylic anhydride (Ma), so that polymer gel of a physical-chemical double-crosslinking system is designed, and Mel is grafted and assembled on a polymer network of the polymer gel; further, the adsorbing material which has good swelling property and stability and does not cause secondary pollution is prepared.

The application provides a method for strengthening leaching of ionic rare earth, which is based on regulation of ZETA potential and seepage rate of clay mineral by cation and anion coordination adsorption to improve leaching efficiency of ionic rare earth, and comprises the following steps: providing ionic rare earth ore, citrate solution and non-ammonium inorganic salt solution, wherein the liquid-solid ratio of the citrate solution to the ionic rare earth ore is 0.1-0.5:1, and the liquid-solid ratio of the non-ammonium inorganic salt solution to the ionic rare earth ore is 0.9-0.5:1; using the citrate solution to perform first leaching treatment on the ionic rare earth ore to obtain first leaching solution; using the non-ammonium inorganic salt solution to perform second leaching treatment on the ionic rare earth ore to obtain second leaching solution; performing first post-processing treatment on the first leaching solution to obtain rare earth; and performing second post-processing treatment on the second leaching solution to obtain rare earth. The method for leaching ionic rare earth has the advantage of high leaching rate.

The invention relates to the field of polymer materials, in particular to a polymer material and an all-black photovoltaic module. The polymer material comprises EVA resin and the following components, calculated by the mass of the EVA resin: 0.5-1.5% of a cross-linking system, 0.5-1.5% of an ionic liquid, 0.05-0.1% of a silane coupling agent KH-570, and 0.1% of a Ca- 1‑x RE x Al2Si2O8@black TiO2 1‑5%, antioxidant 0.1‑0.5%, light stabilizer 0.1‑0.5%; wherein, 0<x≤0.2, the EVA film made of the polymer material of the present invention has good tensile strength and peel strength, and applying it to solar cells is helpful to improve the photoelectric conversion efficiency of solar cells.

The present invention proposes a fat stem cell composition for wound repair and a preparation method and application thereof, which belongs to the field of stem cell technology. Fetal bovine serum, dexamethasone, penicillin, streptomycin, collagen, magnetic particles, and substance P are added to DMEM culture medium to prepare a culture medium for low-frequency magnetic field culture of fat mesenchymal stem cells, separation, obtaining a stem cell solution, embedding to obtain stem cell microspheres, freeze-drying the supernatant to obtain paracrine culture material, and mixing with stem cell microspheres, hydroxypropyl methylcellulose, carboxymethyl chitosan, hyaluronic acid, glycerol, and stem cell microspheres to obtain a fat stem cell composition for wound repair, which has good effects of implanting damaged tissues, releasing nutrients, promoting new blood vessel formation, regulating oxidative stress and inducing anti-inflammatory reactions, and is helpful for wound repair. It can be converted into a gel phase at a skin epidermal temperature between 35-37°C, stabilizes components, and releases in a controlled manner.

The application discloses a microwave-responsive hydrogel dressing and application thereof in preparation of an anti-diabetic chronic infection wound preparation. The raw material of the hydrogel dressing disclosed by the application comprises: (A) a hydrogel matrix; (B) glucose oxidase; (C) a nano-enzyme composition, wherein the nano-enzyme composition at least comprises a luteolin-manganese dioxide composite; wherein the luteolin-manganese dioxide composite is a solid-phase product obtained by wet blending of luteolin and nano-manganese dioxide. Under microwave irradiation, the heat effect generated by the microwave causes the hydrogel dressing to heat up, the heat-enhanced glucose oxidase consumes glucose to generate hydrogen peroxide, and at the same time, the heat-enhanced luteolin-manganese dioxide composite decomposes the hydrogen peroxide to generate oxygen, thereby simultaneously relieving high glucose and hypoxia, fundamentally breaking the vicious cycle of "high glucose-hypoxia-infection-chronic inflammation" of the diabetic wound, and finally improving the antibacterial effect on the skin wound.

This invention provides a carbon dioxide heavy oil extraction aid, its preparation method, and its application. The carbon dioxide heavy oil extraction aid, based on 1 part by weight of alkyl polyoxypropylene polyoxyethylene ester, further comprises the following components: 0.1-10 parts by weight of alkylamine; 0.1-100 parts by weight of solvent; the general molecular formula of the alkyl polyoxypropylene polyoxyethylene ester is formula (I) or formula (II): In formula (I), R1 is a C1-C8 alkyl group; R2 is a C1-C8 alkyl group; a is an integer from 0 to 12; b is an integer from 1 to 12; In formula (II), R3 is a C1-C8 alkyl group; R4 is a C1-C8 alkyl group; c is an integer from 0 to 12; d is an integer from 1 to 12. The carbon dioxide heavy oil extraction aid prepared by this invention enhances the interaction between CO2 and heavy oil, improves the swelling effect of CO2 on heavy oil, and increases the mobilization capacity of heavy components, thereby reducing the precipitation of asphaltene and other substances, ultimately effectively improving oil recovery efficiency.

The application provides a multi-phase covalently cross-linked biopolymer material and a preparation method and application thereof, relates to the technical field of biopolymer materials, and the multi-phase covalently cross-linked biopolymer material with a double-network interpenetrating structure prepared by the application has the following advantages: a high-density covalent network provides anti-dissolution and mechanical support, a low-density ionic network guarantees the freedom of chain segment movement and the flexibility of the network, an asymmetric structure of "strong skeleton-weak filling" is formed, the material has shape stability and elastic recovery capacity, the mechanical strength is significantly improved, the material has good swelling performance, and the mechanical strength and the swelling performance are balanced. The raw materials of the application are all selected from natural biopolymers, have good biocompatibility, the reaction is carried out in an aqueous phase, no organic solvent is needed, the condition is mild, the biological activity of the natural polymer is reserved, the process is simple, green and environmentally friendly, and easy to scale up.

The invention discloses a hydrogel of rosin modified nanocellulose as well as a preparation method and application of the hydrogel, and the hydrogel is prepared by the following steps: fully stirring rosin powder (Rosin) and nanocellulose suspension (CNC) to be uniformly mixed, and centrifugally washing with ethanol to obtain a mixed solution; the preparation method comprises the following steps: dissolving an acrylamide monomer (AM), an N-N '-methylene bisacrylamide cross-linking agent (MBA) and a photoinitiator in deionized water, adding the solution into a mixed solution, and polymerizing in an ultraviolet box by adopting an ultraviolet curing polymerization method. The obtained multifunctional hydrogel forms a colloidal state through polymerization reaction at high temperature, has mechanical performance, antibacterial performance and swelling performance, and has great application potential in antibacterial composite material research in the field of biomedicine.

The application provides a non-fluoropolymer, a non-fluoropolymer composite diaphragm and application, the non-fluoropolymer includes polymer A and the polymer B at least partially coated on the surface of polymer A, the crosslinking degree of polymer A is X1, the crosslinking degree of polymer B is X2, 5%≤X1≤10%, 50%≤X2≤60%;The non-fluoropolymer composite diaphragm includes base film and coating layer coated on at least one side of base film.The non-fluoropolymer particles of the application have a higher swelling rate at high temperature, also have the reversible characteristics of absorbing and releasing electrolyte, the non-fluoropolymer and the non-fluoropolymer composite diaphragm are applied in the battery, when the battery abnormally heats, the non-fluoropolymer swells rapidly, blocks the ion shuttle channel, avoids the further deterioration of temperature, improves the safety performance of the battery, and when the temperature returns to normal, the non-fluoropolymer particles can restore to the original morphology, restore the ion shuttle channel, so as to not affect the subsequent cycle performance of the battery.

The present invention belongs to the technical field of biomedical materials, and discloses a disc repair material based on a staged treatment strategy for disc degeneration, and its preparation method and application; the disc repair material includes a sandwich structure dual electroactive stent, and a composite hydrogel attached to the dual electroactive stent; the sandwich structure dual electroactive stent includes a conductive porous stent with a conductive through-channel structure and a piezoelectric fiber film located on the upper and lower sides of the conductive porous stent; the composite hydrogel includes a hydrogel and an antioxidant nanozyme uniformly dispersed in the hydrogel; the antioxidant nanozyme is a core-shell structure nanoparticle with Co-Ni bimetallic oxide as the core and polydopamine as the shell. The present invention repairs the early degenerative disc through antioxidant and anti-inflammatory nanozymes, repairs the defective disc after resection with a dual electroactive stent, and the composite hydrogel enhanced by the electroactive stent can replace the late degenerative disc, thereby achieving corresponding treatment for different stages of disc degeneration.

The invention belongs to the technical field of traditional Chinese medicine, and particularly discloses a traditional Chinese medicine composition for treating chronic prostatitis and a preparation process thereof.The traditional Chinese medicine composition is prepared from, by weight, 3-15 parts of cassia twigs, 20-40 parts of oysters, 20-40 parts of fossil fragments, 10-30 parts of yam rhizome, 10-30 parts of pyrrosia lingua and 20-40 parts of salvia miltiorrhiza. The traditional Chinese medicine composition has the effects of clearing heat and promoting diuresis, dissolving turbidity and treating stranguria, promoting blood circulation to remove blood stasis, and resolving depression for tranquilization, so that a good effect of treating chronic prostatitis caused by damp-heat stasis is achieved, and the traditional Chinese medicine composition is convenient to take, small in adverse reaction and wide in application prospect.

This invention provides a nanomaterial for relieving inflammation and pain in tendinopathy and its preparation method, relating to the field of biomedical technology. The nanomaterial comprises decellularized tendon DTM and hybrid membrane vesicles (MSM) of macrophages and nerve cells. The aforementioned nanomaterial for relieving inflammation and pain in tendinopathy includes decellularized tendon DTM and hybrid membrane vesicles (MSM) of macrophages and nerve cells. Combining these two components yields DTM-MSM, which regulates the proliferation and differentiation of tendon stem cells, modulates the local immune microenvironment, and relieves pain. It can improve inflammation and pain in tendinopathy and accelerate the repair of damaged tendons. In other words, DTM-MSM can not only alleviate the pathophysiological changes in tendinopathy but also rapidly improve the main clinical symptoms of tendinopathy, such as pain, swelling, and functional limitation, thus overcoming the current shortcomings of tendinopathy treatments, including slow onset of action, poor compliance, significant side effects, and unclear efficacy.

The invention discloses a composite hydrogel dressing based on gradient freeze thawing and a preparation method and application thereof, and belongs to the technical field of biomedical materials.The preparation method of the composite hydrogel dressing comprises the following steps that a polyvinyl alcohol solution and a polyvinylpyrrolidone solution are mixed, and a binary composite precursor solution is obtained; mixing sericin powder with the binary composite precursor solution to obtain a ternary composite precursor solution; injecting the ternary composite precursor solution into a mold, and preparing by adopting a gradient freeze thawing method to obtain ternary composite hydrogel; and dipping the ternary composite hydrogel in a potassium guaiacol sulfonate solution to form the composite hydrogel dressing loaded with the potassium guaiacol sulfonate. The composite hydrogel dressing prepared by the invention has multiple functions of excellent mechanical properties, good biocompatibility, adhesion, drug release ability, antibacterial ability and the like, and can be used for wound healing.

The invention discloses an alumina carrier and a preparation method thereof. The alumina carrier carbon provided by the invention is non-uniformly distributed in a carrier body phase, the content of a micron-sized pore channel micro-area C of the carrier body phase is 30-55 wt%, and the content of a non-micron-sized pore channel micro-area C is 1.5-6.5 wt%. The preparation method of the alumina carrier comprises the following steps: (1) uniformly mixing flour and an alkaline substance, performing grinding treatment, adding the ground material into an alumina precursor, performing uniform mixing, adding a proper amount of distilled water into the mixed material, performing mixing and kneading, and performing extrusion molding to obtain a molded body; and (2) heating the molded body in a closed container, drying the heated material, and roasting in an inert atmosphere to obtain the alumina carrier. The alumina carrier contains a certain amount of micron-sized pore channels, and the micron-sized pore channels are subjected to carbon modification treatment, so that the alumina carrier has more active sites and is suitable for catalyst carriers, adsorption-separation materials, energy storage materials and the like, the preparation process is simple, and industrial production is easy.

The present invention belongs to the technical field of lithium-ion batteries, and specifically relates to a substrate film, a high-temperature resistant swelling tape for lithium batteries, and a preparation method thereof. The substrate film is a three-layer composite film consisting of an outer layer, an intermediate layer, and an inner layer; a cross-linked unsaturated polyester polyol, a diisocyanate, and a chain extender are reacted and extruded through a twin-screw extruder to obtain an intermediate layer cross-linked thermoplastic polyurethane. The outer layer is composed of ethylene-vinyl alcohol copolymer and ethylene-acrylate-glycidyl acrylate copolymer; the inner layer is composed of polyethylene and ethylene-acrylate-maleic anhydride copolymer. The swelling tape prepared from the substrate film has a very high swelling ratio, is resistant to high temperatures, has good toughness, does not have the problem of high-temperature shrinkage and deformation, and after being soaked in an electrolyte, can effectively fill the gap between the lithium battery cell and the shell, avoid battery short circuit due to relative movement between the two, increase the safety of the battery, and has stable composition and high safety performance.

The present application relates to the technical field of seawater desalination material preparation, and particularly relates to a double-network hydrogel evaporator for interfacial water evaporation, a preparation method and application, comprising a polyvinyl alcohol first network and a 2-acrylamide-2-methylpropanesulfonic acid second network which penetrate each other, and Ti4O7 photo-thermal absorption material is dispersed in the first network; the evaporator has a macroporous skeleton formed by the first network and a multistage pore composed of nanoscale fibrous and membranous secondary structures derived from the second network on the macroporous skeleton, the mechanical stability is improved through a double-network synergistic enhancement mechanism, the multistage pore structure is used to accelerate water transmission and increase the evaporation interface, so that the evaporator has a high evaporation rate, excellent salt resistance and long-term operation stability, and is more suitable for solar-driven seawater desalination, and solves the problems of weak mechanical strength, poor structural stability and poor environmental adaptability of the hydrogel-based evaporator in the prior art.

The invention relates to the technical field of catalytic uranium extraction, and discloses a PAO doped BaTiO3 piezoelectric-adsorption material and a preparation method thereof.The preparation method comprises the following steps that S1, 0.8 g of polyacrylonitrile (PAN) is dissolved in 9.2 g of N, N-dimethylformamide (DMF), and a PAN solution with the mass concentration being 8% is prepared; s2, adding 1.07 g of hydroxylamine hydrochloride into the PAN solution to obtain a PAO solution; s3, BaTiO3 is added into the PAO solution, and the PAO-tBT nanofiber membrane is prepared through the mixed suspension liquid. PAN is oximated into PAO, a large number of amidoxime groups (-C (= NOH)-NH2) are introduced to the surface of the material, the groups and uranyl ions (UO2 < 2 + >) can form a stable five-membered or six-membered coordination ring, uranium can still be preferentially and selectively combined in a seawater complex ion environment (for example, when high-concentration Na < + >, Mg < 2 + > and Ca < 2 + > coexist), and PAO contains plane sawtooth conformation, so that the piezoelectric material has certain piezoelectric performance, and the piezoelectric material can be applied to the field of piezoelectric materials. And the effect of adsorption-piezoelectric catalysis synergistic uranium extraction is achieved.

The invention belongs to the technical field of food processing, and particularly provides an antioxidant functional colored potato compressed biscuit and a preparation method thereof. The colored potato compressed biscuits comprise the following raw materials: 30-40 parts of colored potatoes, 10-30 parts of wheat weak strength flour, 10-20 parts of eggs, 2-6 parts of palm oil, 1-5 parts of white granulated sugar, 10-15 parts of whole milk powder, 3-7 parts of maltose, 0.5-1 part of edible salt, 0.2-0.4 part of sesame and 0.5-2 parts of baking powder. The compressed biscuit is reasonable in nutritional ingredient structure and rich in various vitamins and minerals, and has the functional characteristic of protecting vision and retina health; meanwhile, the colored potatoes and the green tea extract are specially added, so that compared with traditional biscuits, gastrointestinal satiety is more easily generated, and the intake of total calories is further reduced; detumescence is facilitated, and gastrointestinal motility is promoted; the green tea is appropriate in sweetness and crisp and rich in taste, has a specific green tea flavor, is not added with pigments and essences, and makes the body free of burden; and meanwhile, the preparation method is high in production efficiency, simple in process and easy for large-scale production.

The present application relates to modifier, modified asphalt and its preparation method, the mask fiber obtained by crushing the mask containing polypropylene fiber component, biological oil, surfactant, ball milling medium are mixed, grinding treatment, the initial preparation modified fiber slurry is obtained by adding styrene monomer, butyl methacrylate monomer, initiator, crosslinking agent, grinding, screening, the obtained initial preparation modified fiber slurry, polyether amine, accelerator are mixed, homogenization treatment, the modifier is obtained.The modifier described in the application can reduce the mixing temperature of asphalt, reduce energy consumption, reduce environmental pollution, increase the system stability of asphalt.The asphalt after adding the modifier has low-temperature crack resistance, is not prone to crack in cold environment, improves the service life of asphalt pavement.

The present invention relates to a homogeneous spherical hyaluronic acid bead gel having a swelling degree of 4,500%-10,000%, which is prepared through a mixed crosslinking reaction step, a second step of crosslinking reaction of a dispersed crosslinking reaction, and a third step of purification reaction, wherein the ratio of the reaction time in the mixed crosslinking reaction step to the reaction time in the dispersed crosslinking step is 1:24 to 1:72. According to the method for preparing a hyaluronic acid bead gel of the present invention, it is possible to prepare a transparent, homogeneous bead gel with a high swelling degree. The hyaluronic acid spherical bead gel has a transparent spherical shape with a selected size, exhibits a decomposition period, viscoelasticity, and a swelling degree, has excellent biocompatibility, and is very stable against heat and enzymes.

The invention relates to a preparation method of a flame-retardant washable water-based acrylate resin coating with moderate compatibility, which comprises the following steps: adding water, an emulsifier and methacrylic acid, stirring to react for 60 minutes, adding a monomer A, a charring agent intermediate, DOPO and 3, 4-epoxy-1-butene, and emulsifying for 20-30 minutes; heating to 80-90 DEG C, dropwise adding an initiator, reacting for 1-2 hours, adding diethanol amine, and reacting for 1-2 hours to obtain a core-layer emulsion; the preparation method comprises the following steps: adding a monomer A and a monomer B into a reaction kettle, dropwise adding a monomer B and an initiator at the same time, keeping the temperature at 75-85 DEG C, stirring and reacting for 1.5 hours, adding DOPO, 3, 4-epoxy-1-butene and an initiator, reacting for 1 hour at 60-70 DEG C, cooling to 50 DEG C, adding an emulsifier B, reacting for 30 minutes, and adding ammonia water to adjust the pH value to 7-8, so as to obtain the flame-retardant washable water-based acrylate resin coating with moderate compatibility, and the obtained acrylate resin has good flame retardance and washability.

The application provides osmanthus fragrans plant extract mosquito repellent spray with long-acting mosquito repellent and itching, swelling relieving effects and a preparation method thereof, and relates to the technical field of mosquito repellent products. The raw materials of the mosquito repellent spray are as follows: osmanthus fragrans flower extract 7-9 parts, melaleuca alternifolia leaf extract 8-11 parts, chrysanthemum artemisia extract 1-2 parts, radix morindae officinalis extract 12-16 parts, platycodon grandiflorum root powder 16-19 parts, plant essential oil 20-24 parts, glycerol 18-23 parts, sucrose stearate 6-9 parts, p-hydroxyacetophenone 0.2-0.5 parts, stabilizer 3-5 parts and peppermint water 110-120 parts. The mosquito repellent spray can interfere with the activities of mosquitoes to achieve a good mosquito repellent effect, and can form a uniform and stable protective film on the skin surface to prolong the mosquito repellent effect, and can also play a good soothing and skin converging role, reduce local inflammatory reactions, promote skin barrier repair, and effectively relieve itching, swelling and other discomforts caused by mosquito bites.