11results about How to "High viscoelasticity" patented technology

This invention provides a high-hygroscopic, water-free composite gel-type calcium and magnesium salt tablet and its preparation method, which is made from the following raw materials in parts by weight: 45-70 parts calcium and magnesium salt, 15-25 parts gum arabic, 3-15 parts mica powder, 2-12 parts polyethylene oxide, 0.5-2 parts sodium nitrite, and 2-30 parts gelatin. This tablet exhibits high hygroscopicity and excellent physical properties.

The application discloses an impact-resistant high-thermal-conductivity polyphenylene sulfide composite material and a preparation method thereof, and relates to the technical field of plastic processing. The preparation method comprises the following steps: S1, preparation of a highly oriented PPS fiber insert; and S2, preparation of the impact-resistant high-thermal-conductivity PPS composite material. The application provides an impact-resistant high-thermal-conductivity PPS composite material and a preparation method thereof. Firstly, the viscoelasticity of PPS resin is improved by using high-melt-viscosity and high-temperature-resistant aromatic polyamide, the interfacial compatibility of PPS / aromatic polyamide is enhanced by using a functionalized polysulfone-based resin as a compatibilizer, so that the stretchability and the tensile orientation degree of PPS are improved; PPS composite fibers are obtained by using a melt spinning machine, and a fiber solid-phase high-multiple-stretching-annealing forming process is established, so that the high-toughness and highly oriented PPS composite fiber material is obtained.

This application belongs to the field of lithium battery technology, and particularly relates to a lithium battery ceramic separator adhesive, its preparation method, and a lithium battery. The lithium battery ceramic coated separator adhesive includes a core layer and a shell layer. The shell layer is a copolymer of alkyl acrylate and acrylate polyacrylate with a mass ratio of 1:1 to 3. The glass transition temperature is about -10℃ to -30℃. It is in a glassy state at room temperature and has good viscoelasticity. It can effectively bond the positive and negative electrode sheets and the battery ceramic separator at room temperature after conventional pressing. The positive and negative electrode sheets and the battery ceramic separator are difficult to peel off or move. This solves the technical problem in the prior art that the bonding effect of lithium battery ceramic separator adhesive at room temperature is poor and the electrode sheets and separator are prone to displacement.

The invention discloses an injectable hydrogel pharmaceutical composition for an articular cavity as well as a preparation method and application of the injectable hydrogel pharmaceutical composition. The hydrogel pharmaceutical composition comprises gel particles and a medicine loaded in the gel particles, the gel particles are formed by cross-linking hyaluronic acid or salt thereof and silk fibroin through a cross-linking agent; the medicine comprises an anti-inflammatory drug and / or a growth factor. The preparation method is simple, good in safety and beneficial to industrial production. The uniform porous structure of the hydrogel is beneficial to adhesion and growth of bone cells, meanwhile, the double-load hydrogel loaded with the anti-inflammatory drug and the growth factor has good viscoelasticity and injectability and has the effects of synergistically resisting inflammation and promoting cartilage repair, and bone joint related diseases are treated in a bone joint intracavity injection mode; the drug residence time can be prolonged, and the bioavailability is improved.

This invention discloses a surfactant composition, its preparation method, and its applications. The surfactant composition comprises a nonionic surfactant, an amphoteric surfactant, and optionally an anionic nonionic surfactant; wherein the nonionic surfactant is selected from at least one nonionic compound containing a hydrophobic hydrocarbon chain and two or more hydroxyl groups. The surfactant composition of this invention forms a bicontinuous phase structure through self-assembly, which is interconnected in all directions, thereby providing excellent mass transport properties and achieving rapid wetting. The use of a mixture of a polyhydroxy nonionic surfactant and an amphoteric surfactant enhances hydrogen bonding with water and the anions in the amphoteric surfactant, while the hydrophobic hydrocarbon chain enhances van der Waals forces, increasing the viscoelasticity of the coating under wetting conditions and thus enhancing its resistance to prolonged water misting.

The application relates to a high internal phase emulsion ink material and a preparation method and application thereof, and belongs to the technical field of emulsion ink material preparation. The preparation method of the high internal phase emulsion ink material provided by the application is as follows: a pulse electric field is used to treat a soybean protein isolate solution, then the soybean protein isolate solution is mixed with a polysaccharide solution as an aqueous phase, then vegetable oil and a bioactive substance are mixed as an oil phase, and finally the aqueous phase and the oil phase are mixed and high-speed sheared to prepare the high internal phase emulsion ink material. The high internal phase emulsion ink material prepared by the application has high stability after freeze-thaw storage and high retention rate of the bioactive substance, can effectively embed the bioactive substance, better realizes slow release of the bioactive component, achieves the purpose of targeted transport, improves the retention capacity of the emulsion to the internal phase substance under the freeze-thaw condition, has great application prospect and development potential in the preparation of 3D printing functional food, and can provide a new technical direction and technical support for the 3D printing functional food.

This invention discloses a biodegradable gel plugging agent, its preparation method, and its application in high-temperature well plugging. The biodegradable gel plugging agent comprises the following components by mass percentage: 10.0 wt% to 15 wt% propylene monomer, 1.0 wt% to 2 wt% crosslinking agent for gelation, 0.01 wt% to 0.001 wt% initiator, and the balance being water. It solves the problems of poor degradation and salt resistance in existing technologies. When applied, because the crosslinking agent contains a conjugated aromatic system, it does not require additional conditions such as light, acidic conditions, or alkaline conditions, and can degrade spontaneously under certain temperature conditions. It has the characteristics of controllable gelation time, spontaneous degradation under certain temperature conditions, and low viscosity of the degraded product. Moreover, the gel can degrade without the need for an additional gel-breaking agent.

The invention belongs to the technical field of dairy product processing, and particularly relates to walnut meal low-fat yoghourt added with glycosylation modified walnut protein emulsion gel and a preparation method of the walnut meal low-fat yoghourt. The preparation method comprises the following steps: taking degreased walnut cake meal as a raw material, extracting walnut protein in the degreased walnut cake meal through alkali dissolution and acid precipitation, carrying out moist heat glycosylation modification to obtain a conjugate solution, homogenizing the conjugate solution and walnut oil together to form an emulsion, adding GDL emulsion to induce the emulsion to form emulsion gel, and carrying out freeze-drying to obtain the walnut oil gel. And adding the emulsion gel into the blended and unfermented yoghurt for fermentation, and after fermentation, performing after-ripening to obtain the walnut meal low-fat yoghurt with walnut flavor, good quality and relatively high nutritional value. By systematically optimizing the formula and process parameters, the prepared walnut meal low-fat yoghourt has the characteristics of unique walnut flavor, fine taste, stable quality and high nutritional value, and a feasible technical scheme is provided for the development of low-fat yoghourt products.

The application belongs to the technical field of oilfield exploitation, and particularly relates to a foam stabilizer based on graded modification of Enteromorpha, and a preparation method and application thereof. The foam stabilizer comprises a foam stabilizer or a chelated foam stabilizer. The preparation method of the foam stabilizer comprises the following steps: step one, Enteromorpha pretreatment: washing and drying Enteromorpha, and then crushing; step two, hot water leaching separation: adding deionized water according to a solid-liquid ratio of 1:25-35, stirring and leaching at 85-95 DEG C for 4 h, and filtering to obtain filtrate and residue; and step three, preparation of the foam stabilizer or the chelated foam stabilizer: drying the residue at 80 DEG C for 24 h, and sieving through a 200-mesh sieve to obtain the foam stabilizer; and alkali-activating the foam stabilizer and then performing a carboxylation reaction to obtain the chelated foam stabilizer. The application realizes high-value utilization of waste, and has the advantages of mild process, low cost, excellent foam stabilization under high temperature and high salinity, and effectively makes up for the defects of the prior art.

The invention provides a high-temperature-resistant clean fracturing fluid and a preparation method thereof, and belongs to the technical field of fracturing fluids. The cleaning agent is prepared from the following raw materials in parts by weight: 3-5 parts of a high-temperature-resistant gemini surfactant, 0.5-1 part of a cosurfactant, 5-7 parts of a cleanup additive, 1-2 parts of nano granules and 70-80 parts of water. The high-temperature-resistant clean fracturing fluid prepared by the invention has better high-temperature resistance, salt resistance and shear resistance, good sand-carrying effect and excellent viscoelasticity, avoids the damage of a large number of inorganic ions to the change of original properties of a stratum, is simple in preparation process and wide in raw material source, and has a wide application prospect in oil and gas field exploitation and yield increase.

The application relates to a coal mine plugging gelatinizing agent and a preparation method thereof, and relates to the technical field of coal mine plugging materials. The coal mine plugging gelatinizing agent comprises the following components in parts by weight: modified bentonite 60-75 parts, calcium chloride 10-25 parts, a filler 1-10 parts and cellulose 0.5-5 parts. The modified bentonite is obtained by mixing and magnetizing modification of bentonite and sodium silicate; and the filler is composed of spherical aluminum powder and hydrotalcite powder. The modified bentonite prepared by mixing and magnetizing modification of bentonite and sodium silicate is used as the main component, so that the compressive strength of the gelatinizing system is improved, and the overall adhesion is strengthened; in combination with the filler composed of spherical aluminum powder and hydrotalcite powder, calcium chloride and cellulose, the viscoelasticity, compactness and piling property of the mud can be effectively improved, so that the problems of poor compressive strength and poor air plugging effect of the existing inorganic plugging gelatinizing agent are effectively solved.