669results about "Gel preparation" patented technology

The invention provides a solar interface evaporator based on amphoteric polyelectrolyte photo-thermal hydrogel, a preparation method and application, and belongs to the field of solar interface evaporation. The solar interface evaporator with a three-dimensional multi-surface evaporation structure is prepared by combining the polyelectrolyte resisting effect of the amphoteric polyelectrolyte photo-thermal hydrogel and the porous capillary effect of the sponge, and has the characteristics of high light absorptivity, good water absorption effect, excellent antibacterial property, mechanical property, salt resistance, evaporation property and the like; particularly, compared with a traditional hydrogel-based solar interface evaporator, the water delivery capacity and the salt resistance in high-concentration saline water are greatly improved through the application of the autonomously designed zwitterionic hydrogel, water molecules in the saline water are activated through the cooperation of salt-resistant ionized water, the evaporation enthalpy is reduced, and the evaporation efficiency is improved. And a great positive effect is achieved on improvement of the evaporation rate. The evaporator is easy to prepare and excellent in multi-dimensional performance, and a new way and thought are provided for application to seawater desalination and wastewater treatment.

The present invention relates to the technical field of hydrogel preparation. Disclosed is a preparation method for a hydrogel loaded with plant essential oil. Said preparation method is implemented by means of a hydrogel preparation device. The hydrogel preparation device comprises a reaction mechanism; the inside of the reaction mechanism is provided with a drive mechanism; the outer side of the drive mechanism is sequentially provided, from top to bottom, with a blocking mechanism, an inner stirring mechanism and an outer stirring mechanism; and the outer sides of the blocking mechanism and the inner stirring mechanism are jointly provided with a sealing mechanism. The present invention can reduce the time required for inputting deionized water, so as to improve the efficiency of preparing polymer aqueous solutions, and also uses vacuumizing to eliminate bubbles, so as to avoid bubbles without the need for heating mixed liquids, thus reducing the energy consumption while further improving the efficiency of preparing the polymer aqueous solutions.

The invention discloses a protein-based hydrogel adsorption material and application thereof in repairing water and soil heavy metal pollution, polysaccharide is doped into protein hydrogel to prepare the hydrogel adsorption material which is good in toughness, high in porosity and rich in surface adsorption functional groups. The heavy metal contaminated water and soil can be effectively adsorbed and efficiently recycled, especially for the heavy metal contaminated soil, the heavy metal contaminated soil is coated with the heavy metal contaminated water and soil adsorbent, the heavy metal contaminated soil is covered with the heavy metal contaminated water and soil adsorbent, in-situ remediation of the contaminated soil is achieved, meanwhile, the thin film is removed after remediation, and the risk of secondary overflow is thoroughly avoided. Results show that the protein-based hydrogel adsorbing material can efficiently remove different heavy metal pollutants, and after different treatments, the corresponding agricultural soil land control level can be reached. Moreover, no nutrient loss is observed in the treated soil, and no secondary toxic product is generated, so that the method has relatively high sustainability and agricultural application feasibility.

The invention discloses a bionic bimodal hydrogel-based triboelectricity-super-capacitance sensor and a preparation method of the bionic bimodal hydrogel-based triboelectricity-super-capacitance sensor. A hydrogel-based sensor high-charge sensitive layer is used as a triboelectric layer, a flexible hydrogel-based high-conductivity hydrogel electrode layer is used as an upper electrode layer, a hydrogel-based sensor elastic spacing layer, a hydrogel-based sensor dielectric layer is used as an ion conductive layer, and the flexible hydrogel-based high-conductivity hydrogel electrode layer is used as a lower electrode layer. An integrated multi-layer device structure is stacked from top to bottom; a silver wire is led out from each of the two layers of flexible hydrogel-based high-conductivity hydrogel electrodes, and the bionic bimodal hydrogel-based triboelectricity-super-capacitance sensor is obtained. The sensor integrates two sensing mechanisms of triboelectricity and a super capacitor, can detect dynamic and static pressure at the same time, has the advantages of high sensitivity, wide detection range, quick response and the like, and is expected to be widely applied to the fields of human-computer interaction, robot sensing and the like.

The invention relates to the technical field of water adsorption materials, in particular to an aluminum-based MOF composite adsorbent and a preparation method and application thereof.The aluminum-based MOF composite adsorbent is obtained by weighing Al-MOF, adding the Al-MOF into a lithium chloride solution, conducting ultrasonic dispersion, stirring, filtering and drying at the temperature of 80-120 DEG C; adding sodium alginate and carrageenan into deionized water, and stirring to obtain double-network hydrogel; and adding the double-network hydrogel into the aluminum-based MOF adsorbent, uniformly mixing, forming by pelleting equipment to prepare adsorbent particles, and drying the adsorbent particles at the temperature of 80-120 DEG C to obtain the aluminum-based MOF composite adsorbent. According to the invention, Al-MOF, sodium alginate and carrageenan are mixed and molded, so that a high-strength hydrogel network can be obtained, and Al < 3 + > in an MOF skeleton and functional groups in sodium alginate and carrageenan in the dual-network hydrogel are coordinated, so that the network structure is tighter and more stable; the free movement of water molecules in the hydrogel can be effectively limited, so that the swelling property and the mechanical stability of the hydrogel are further adjusted.

The invention belongs to the technical field of sewage treatment, and discloses a biodegradable-photocatalytic composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a photocatalyst, sodium alginate and water to obtain gel containing the photocatalyst, then adding a photosynthetic bacteria concentrated solution, then adsorbing photosynthetic bacteria and the photocatalyst by using a carrier, and finally immobilizing in a calcium chloride solution to obtain the composite material. Photosynthetic bacteria are selected as microorganisms, and the method has the advantages of being flexible in metabolism mode, high in antibiotic tolerance, high in breeding speed, free of sludge treatment and the like. The photocatalyst and the photosynthetic bacteria are loaded on the polyurethane sponge, so that the photosynthetic bacteria are easily separated from water while being protected. The photocatalyst outside the carrier generates high-activity substances, and refractory antibiotics are converted into biodegradable intermediates. And a generated intermediate product is decomposed by microorganisms in the carrier, so that efficient degradation and mineralization of antibiotics in the sewage are realized.

The invention relates to the technical field of organic supramolecular chemical materials, in particular to an octyloxy-modified imine gelator, bi-component gel of the octyloxy-modified imine gelator and a preparation method and application of the octyloxy-modified imine gelator. The gelator is a symmetric o-octyloxy modified p-phenylenedialdehyde-maleonitrile imine gelator, and has an obvious aggregation-induced emission property; the gelator and the cholesteryl half-ester gel can form double-component organic gel without fluorescence emission in an organic solvent; the fluorescence-emission-free double-component gel formed in tert-butyl alcohol is red fluorescence-emission gel when meeting water, and is converted into blue fluorescence-emission gel when meeting NaClO, so that water and NaClO can be rapidly and intuitively detected; the gelator has fluorescence enhancement and blue shift after encountering NaClO in a solution state, has fluorescence'off-on 'detection on NaClO, has fluorescence emission intensity reduced after Hg < 2 + > is added in the solution state, and has fluorescence'on-off' detection performance on Hg < 2 + >.

The invention relates to the technical field of organic material detection, in particular to an imine molecular sensor with a five-detection function, two-component gel as well as a preparation method and application of the imine molecular sensor. The imine molecular sensor has three signal responses of fluorescence on-off, ultraviolet absorption and color change to Fe < 3 + >, Co < 2 + > and Ni < 2 + > in a solution state, and has ultraviolet absorption and fluorescence on-off dual-detection performance to acid and alkali changes; the imine molecular sensor and cholesteryl half ester can form two-component gel through a heating-low-temperature ultrasonic cooling method; after Fe < 3 + >, Co < 2 + >, Ni < 2 + >, NaOH and HCl are respectively added, the orange of the gel becomes milky white, reddish brown, transparent red, milky white and milky white under sunlight, and the fluorescence of the orange of the gel disappears under an ultraviolet lamp, so that the rapid and sensitive detection of Fe < 3 + >, Co < 2 + >, Ni < 2 + >, acid and alkali under two states of the imine molecular solution and the gel is realized. The imine molecular sensor provided by the invention has the advantages of mild synthesis conditions, simple preparation and the like, and creates favorable conditions for popularization and application of the imine molecular sensor.

The present invention relates to the field of materials science, the field of nanomaterials, and the field of biomedical engineering, and in particular to an inorganic non-metallic nanoparticle-assembled hydrogel material and an application thereof inl additive manufacturing technology. The hydrogel material is assembled from inorganic non-metallic particles, so as to form a hydrogel network; the size of the inorganic non-metallic particles ranges from 10 nm to 20 um; the inorganic non-metallic particles account for 2-80 wt % of the total mass of hydrogel; and the hydrogel network has microscopic pores having a pore size ranging from 0.1 um to 30 um. The inorganic non-metallic particles are assembled into a hydrogel material by an electrostatic assembly method or a hydrophobic action assembly method or a magnetic action assembly method. The hydrogel material is additively manufactured to obtain a gel scaffold which is used as a bone repair scaffold or a cartilage repair scaffold. The hydrogel material of the present invention is directly applied to inorganic non-metallic additive manufacturing technology, without using an additive or a cross-linking agent.

The preparation method comprises the following steps: mixing walnut oil and idesia oil according to a mass ratio of (85-90): (10-15), stirring and heating to 68-72 DEG C under the condition of a rotating speed of 55-70 rpm, adding a gel compounded by edible wax and polyglycerol fatty acid ester according to a mass ratio of (4-6): 1, continuing to stir until complete dissolution, adding an emulsifying agent, and uniformly stirring to obtain the beta '-crystal-form woody oil-based oleogel, so as to obtain the beta'-crystal-form woody oil-based oleogel, namely the beta '-crystal-form woody oil-based oleogel. The preparation method comprises the following steps: preparing a liquid grease gel solution, directly putting the liquid grease gel solution under the condition of-10 to-40 DEG C for quick freezing, then stirring for 3-6 minutes under the condition of the rotating speed of 150-250 rpm, and standing for 5-6 days under the environment of 20-25 DEG C to prepare the woody oil-based grease gel. The grease gel prepared by the method disclosed by the invention contains a stable beta'crystal form, is high in oil holding rate and proper in hardness, has relatively good oxidation stability, and can be applied to baking instead of animal butter or hydrogenated vegetable oil.

The invention relates to MXene-based ammonium glycyrrhizinate / konjac glucomannan / borax self-repairing hydrogel and a preparation method thereof, and belongs to the technical field of gel. The preparation method comprises the following steps: firstly, etching Ti3AlC2 by adopting concentrated hydrochloric acid and lithium fluoride, and carrying out multiple times of centrifugal washing, ultrasonic treatment and vacuum drying to obtain an MXene nanosheet; the preparation method comprises the following steps: preparing ammonium glycyrrhizinate and konjac glucomannan into hydrosol, and dispersing MXene nanosheets into the hydrosol to obtain dispersed MXene nanosheet sol; and adding a borax aqueous solution into the dispersed MXene nanosheet sol, stirring, carrying out ultrasonic dispersion, heating until boiling is started, stopping heating, and carrying out cross-linking in a room temperature environment to obtain the MXene-based self-repairing hydrogel. Due to existence of multiple reversible hydrogen bonds and multiple reversible boron-oxygen bonds in polymer chain segments and among the chain segments in the hydrogel, the acting force among molecular chain segments in the hydrogel is enhanced, the mechanical property and the self-repairing property of the hydrogel are remarkably improved, and meanwhile, the conductivity, the electromagnetic shielding property, the oxidation resistance and the antibacterial property of the hydrogel are improved; good application prospects are realized.

The invention discloses a preparation method of a salt-resistant double-layer photo-thermal aerogel evaporator. The preparation method comprises the following steps: S1, cutting and cleaning foamed nickel, and then carrying out vacuum drying; s2, preparing Cu2O / NF (nickel nitrate); s3, preparing ppy-Cu2O / NF (nickel fluoride); s4, preparing hydrogel; and S5, flatly placing a sample ppy-Cu2O / NF on the top surface of the hydrogel, continuing to stand for gelling, enabling the photo-thermal layer and the bottom layer hydrogel to be fully combined, pre-freezing, transferring into a freeze dryer, and freeze-drying to finally obtain the salt-tolerant double-layer photo-thermal aerogel evaporator, namely the lightweight porous aerogel material ppy-Cu2O / NF / FCP with the double-layer structure. The device has the advantages that the high-level evaporation rate and efficient energy conversion are achieved, and efficient photo-thermal conversion and heat management are achieved through the double-layer structure design.

The invention discloses a medicinal silica gel desiccant with high adsorption speed and a preparation method thereof, and belongs to the technical field of desiccant preparation. The medicinal silica gel desiccant with high adsorption speed is prepared from the following components in parts by weight: 50-65 parts of silica gel, 4-8 parts of calcium chloride, 3-6 parts of magnesium sulfate, 3-7 parts of ferric oxide, 1-4 parts of an antibacterial compound, 5-10 parts of a modified surfactant, 1-2 parts of potassium hydroxide, 10-30 parts of ice water, 2-4 parts of acrylic acid, 2-4 parts of acrylamide and 0.4-0.8 part of sodium carboxymethyl starch. 0.2 to 0.3 part of benzoin dimethyl ether, 0.005 to 0.015 part of polyethylene glycol diacrylate and 1 to 2 parts of methanol. The silica gel desiccant prepared by the method has excellent antibacterial performance, adsorption rate and adsorption capacity.

The invention discloses a method for removing fishy smell of minced fillet and improving gel characteristics based on an electric field effect and application of the method, and relates to the technical field of production of minced fillet products. Comprising the following steps: treating surimi rinsing wastewater by utilizing a low-voltage direct-current electric field to obtain rinsing recovery liquid; rinsing the fresh surimi by using the rinsing recovery liquid, and introducing nitrogen microbubbles in the rinsing process to make full contact with the surimi; and rinsing with clear water, and dehydrating to finish the treatment. According to the method disclosed by the invention, the rinsing recovery liquid treated by the electric field is selected and has a synergistic effect with the introduced nitrogen microbubbles, so that the myofibrillar protein content and the moisture content of the rinsed minced fillet are relatively high, and the fat content and fishy smell substances are obviously reduced; the gel strength of the final gel product reaches 493.03 g.cm and meets the 3A-grade surimi standard (the gel strength is greater than or equal to 400 g.cm), and the quality, color and flavor of the surimi gel are effectively improved; the method is simple to operate, high in efficiency and suitable for industrial production.

The invention provides a nano-modified composite gel foam inhibitor for inhibiting spontaneous combustion of coal and a preparation method of the nano-modified composite gel foam inhibitor, and relates to the technical field of preparation of composite inhibitors. The nanometer modified composite gel foam stopping agent is prepared from six components including sodium polyacrylate serving as a gelling agent, konjac glucomannan serving as a cross-linking agent, lauryl sodium sulfate serving as a foaming agent, xanthan gum serving as a foam stabilizer, nanometer silicon dioxide particles and modified antioxidant powder, the optimal proportion of the gelling agent is 2.5 wt%, the optimal proportion of the cross-linking agent is 0.3 wt%, the optimal proportion of the foaming agent is 0.3 wt%, and the optimal proportion of the modified antioxidant powder is 0.3 wt%. The optimal proportion of the foam stabilizer is 0.4 wt%, the optimal proportion of the nano SiO2 particles is 4 wt%, and the optimal proportion of the modified antioxidant is 2 wt%. Different components endow the nano SiO2 modified composite gel foam with different physical and chemical structural characteristics and coal spontaneous combustion prevention performance characteristics, and by adding the nano SiO2 particles and the bentonite modified tert-butylhydroquinone antioxidant, the overall stability and inhibition efficiency of the gel foam are improved.

The invention discloses a preparation method of DNA (Deoxyribonucleic Acid) hydrogel with programmable mechanical strength. By regulating and controlling the molar ratio of the catalytic initiating chains to the total amount of the DNA monomer building blocks, multiple hydrogels which are equivalent in mass concentration and have different mechanical strengths are constructed. According to the method, a strategy similar to catalytic assembly is adopted, the feeding molar ratio of a catalytic initiating chain to a DNA monomer building block is creatively adjusted, the proportion of cross-linking reactions at different levels is regulated and controlled, then the DNA hydrogel with different mechanical strengths is synthesized under the isothermal condition, and the storage modulus range is about 200-2000 Pa. In addition, the change of the mechanical strength is independent of the total concentration of the matrix (DNA) of the hydrogel, the DNA sequence, the stress relaxation rate and other properties. The method provides a novel convenient method for constructing DNA hydrogels with different mechanical strengths, and possibly provides a novel tool for researching the specific influence of mechanical properties of materials on cell / tissue behaviors.

The invention belongs to the technical field of indoor air pollution treatment, and particularly discloses an aluminum hydroxide loaded carbon quantum dot material for removing formaldehyde, gel and a preparation method of the aluminum hydroxide loaded carbon quantum dot material for removing formaldehyde, and the preparation method of the aluminum hydroxide loaded carbon quantum dot material comprises the following steps: uniformly mixing, grinding and dispersing amorphous aluminum hydroxide powder and basic amino acid; transferring into a microwave oven for microwave radiation reaction, filtering, washing and drying after the reaction is finished, and then crushing to obtain the aluminum hydroxide loaded carbon quantum dot material. The preparation method is simple in preparation process, short in reaction time and suitable for industrial production, and the prepared aluminum hydroxide loaded carbon quantum dot material and gel are high in formaldehyde removal rate and have long-term effectiveness.

The invention relates to a floating type copper-loaded sodium alginate hydrogel ball as well as a preparation method and application thereof, and belongs to the technical field of water ecological restoration. The technical problem to be solved by the invention is to provide the preparation method of the floating type copper-loaded sodium alginate hydrogel ball. The method comprises the following steps: preparing a solution A and a solution B, wherein the solution A is prepared from sodium alginate, citrate, an acidic pH regulator, hydrogen peroxide and water; the solution B consists of copper sulfate pentahydrate, citrate, a pH regulator and water; dropwise adding the solution A into the solution B to obtain hydrogel balls; and filtering and washing. The hydrogel ball can float on the water surface and release copper ions in a low dosage for a long time, blue-green algae on the water surface are continuously killed, the influence on the water body is small, and the risk of water body pollution caused by excessive copper ion release can be greatly reduced; the algicide feeding device can effectively reduce the feeding frequency of the algicide, also reduces the labor cost caused by long-period feeding of the algicide, can float on the water surface, is easy to recycle, and does not cause secondary pollution to the water body.

The invention belongs to the technical field of water purification materials, and particularly relates to a multifunctional water purification gel material and a preparation method thereof. The composite material consists of an outer-layer film, a middle-layer framework and an inner-layer carbon core, the outer-layer film is prepared from the following raw materials: sodium alginate, carboxymethyl starch, NaCl and Tween-20; the middle-layer framework is prepared from the following raw materials: chitosan, modified sodium bentonite and Fe-P nano powder; the inner-layer carbon core is prepared from the following raw materials: rice hull biochar, nano CaCO3, FeCl3. 6H2O and FeSO4. 7H2O. Efficient water purification is achieved through a three-layer synergistic structure, and the outer layer Ca < 2 + > cross-linked sodium alginate / carboxymethyl starch porous membrane intercepts particles and buffers metal ions; the middle layer is integrated with chitosan to chelate heavy metals, CTAB-bentonite electrostatically adsorbs anions and Fe-P nanoparticles to precipitate phosphate / arsenate; and the biochar-Fe3O4 complex on the inner layer provides deep adsorption and catalytic oxidation functions.

A polyvinyl alcohol-cellulose nanocrystal composite hydrogel interface evaporator, and a preparation method therefor and the use thereof. The preparation method for the composite hydrogel interface evaporator comprises the following steps: adding a cellulose nanomicrocrystal, polyvinyl alcohol and an acid liquor to water, mixing same, and heating the mixture to dissolve the polyvinyl alcohol, so as to obtain a hydrogel precursor solution; and adding reduced graphene oxide and a cross-linking agent to the hydrogel precursor solution, uniformly mixing same to obtain a mixed solution, gelatinizing the mixed solution, and then freeze-drying same, so as to obtain a target product. The preparation method is simple to operate, low in terms of cost, and environmentally friendly, and endows the hydrogel with excellent multifunctional properties, including wide spectrum absorption performance, seawater desalination performance, wastewater purification performance, etc.

The present invention relates to a colloidal composition comprising unmodified, discrete cellulose microparticles, such as a colloidal emulsion or colloidal gel, a method of preparing the colloidal composition and uses of the colloidal composition and cellulose particles The colloidal composition comprises a continuous phase and a dispersed phase, wherein the continuous phase is a liquid; wherein the dispersed phase comprises cellulose microparticles which are dispersed in the continuous phase of the colloidal composition, wherein the cellulose microparticles have a mean average particle length of from 0.1 to 20 µm a mean average particle width from 0.05 to 1.3 µm, and a maximum thickness not exceeding 0.2 µm determined by scanning electron microscopy; and an aspect ratio of length / width of 1 to 25, and wherein the colloidal composition has a flow index n of ≤ 1 determined by a rheometer at NTP (normal temperature (25°C) and pressure (1 atm)).

The invention provides polyacrylic acid-carboxylated chitosan interpenetrating network hydrophobic modified hydrogel as well as a preparation method and application thereof, and belongs to the technical field of wastewater treatment. The preparation method comprises the following steps: mixing an acrylic monomer, a hydrophilic acrylate monomer, an etherification type acrylamide monomer, an allyl quaternary ammonium salt type hydrophobic monomer, a crosslinking monomer and water, then mixing with a chitosan compound, and adjusting the pH value to obtain a reaction solution; and mixing the reaction liquid and a photoinitiator, then carrying out polymerization reaction, and sequentially pre-freezing and freeze-drying the obtained polymer hydrogel. Through multiple synergistic effects of photo-initiated rapid polymerization, amphiphilic hydrophobic modification, etherification auxiliary crosslinking and a chitosan compound interpenetrating network, the structural stability, complexing efficiency, industrial applicability and heavy metal adsorption performance are comprehensively improved; the adsorption rate and capacity of the hydrogel disclosed by the invention are obviously superior to those of the existing similar polyacrylic acid-based or chitosan-based hydrogel.

The invention relates to a moisture power generation device and a preparation method and application thereof, and belongs to the technical field of moisture power generation. The moisture power generation device comprises a flexible substrate, an upper electrode, a lower electrode and a power generation active material, the power generation active material is arranged between the upper electrode and the lower electrode; the power generation active material is of a core-sheath structure, a sheath layer on the edge is of a cross-linked hydrogel structure, and a core layer is a hydrogel precursor solution; the sheath layer limits the appearance of the hydrogel precursor solution in the core layer and is in contact with the atmosphere. The core-sheath structure of the power generation active material is prepared by an ultraviolet light induced polymerization / gelation one-step method. The moisture power generation device provided by the invention ensures stable and continuous electric energy output and remarkably improved moisture-electric energy conversion efficiency, adopts a miniaturized design, has the remarkable advantages of compact structure and convenience in integrated application, and is beneficial to large-scale production due to assembly convenience.

The invention relates to the field of functional gel composite material preparation and application thereof, in particular to an alpha-FeOOH gel composite material and a preparation method thereof.The preparation method includes the steps that 1, mixed solid powder is prepared and added into humic acid to be mixed to obtain gel, and the gel is added into a FeSO4 solution to be stirred and mixed; 2, a NaOH solution is dropwise added into the mixture, the mass ratio of FeSO4 to NaOH and the pH value of the NaOH solution are controlled, air is introduced for oxidation, and a supported alpha-FeOOH seed crystal suspension compound is obtained; 3, dispersing chitosan in a mixed aqueous solution of humic acid and acetic acid to obtain a mixed aqueous solution of chitosan and humic acid; 4, mixing the suspension compound with the mixed aqueous solution to obtain a cross-linked mixture solution; and 5, adding the FeSO4 solution again, introducing air to oxidize, and dropwise adding the NaOH solution to control the pH value of the cross-linked mixture solution, so that alpha-FeOOH is precipitated and grows on the seed crystal, and the alpha-FeOOH-gel slow-release composite material is obtained. The humic acid enables the degradable plastic to age, exposes functional groups, and is easier to mix.

The invention discloses a method for efficiently dissolving all components of a plant biomass raw material. According to the method, a eutecticevaporate solvent system is adopted to carry out mild soaking treatment on a plant biomass raw material, and a homogeneous plant biomass all-component solution is finally formed by combining the dissolution synergistic coupling effect of a metal salt solution. All-component one-pot efficient dissolution of cellulose, hemicellulose and lignin in the plant biomass raw materials can be achieved, the dissolution efficiency reaches up to 100%, the dissolution process is mild, energy consumption is low, and the method has industrial application prospects; the prepared plant biomass all-component solution can be used as a material construction platform for preparing a series of plant biomass gel, films, fiber materials and the like with excellent performance, and can be used in the fields of sewage treatment, bio-based packaging, spinning, energy collection, 3D printing and the like.

The invention discloses pure inorganic stimuli-responsive sol as well as a preparation method and application thereof, inorganic sol with stimuli-responsive performance is prepared from an inorganic nano-material with positive electricity, and the technical problem of conversion from one-dimensional inorganic nano-material sol to gel is solved. Compared with a means of providing positive electricity for the one-dimensional inorganic nano material through a modification means, the one-dimensional inorganic nano material carrying the positive electricity only needs cheap inorganic matters in cost, and the convenience and cost of the one-dimensional inorganic nano material carrying the positive electricity have qualitative changes in further processing and practical application; the adjustment of the acting force between one-dimensional inorganic nano materials can be realized without replacing ligands, and the method has extremely high advantages in the aspect of realizing the sol-gel conversion capability of stimulation response. The method disclosed by the invention is relatively low in cost and simple and convenient to operate, and the prepared hydrogel not only has relatively good mechanical properties, but also has relatively good stimulation response capability, is a material capable of realizing comprehensive application, and is wide in application scene.

The invention relates to the technical field of organic silicon elastomers, and discloses a preparation method and equipment of high-brightness organic silicon elastomer gel, and the high-brightness organic silicon elastomer gel comprises the following components in parts by mass: 124 parts of hydrogen-containing silicone oil and 13 parts of vinyl MQ resin. According to the invention, polydimethylsiloxane and isoalkane in a certain mass ratio are used as carrier fluids, and the polydimethylsiloxane and the isoalkane act together, so that the obtained product has more excellent silky feeling, matte feeling, smearing spreadability and skin feeling durability, can provide lasting velvet-like smooth feeling for the product, can bring matte and soft-focus effects for the product, and can be used for preparing a soft-focus soft-focus product. According to the present invention, the product viscosity can be reduced, the refreshing non-greasy skin feeling can be provided for the product, the product can be used as the high transparent system, the good smearing spreading degree and the good water resistance can be provided, the thickening effect can be provided in the anhydrous formula and the water-in-oil formula, and the product stability can be improved.

The invention relates to the technical field of photocatalysis, in particular to photocatalytic hydrogel based on zinc oxide-chitosan as well as a preparation method and application of the photocatalytic hydrogel. The photocatalytic hydrogel takes chitosan gel as a substrate and is loaded with ZnO nanoparticles. Zn ions in the photocatalytic hydrogel are coordinated with-NH2 groups in the chitosan, and ZnO can be anchored in a chitosan gel framework. Meanwhile, based on the anchoring effect of-NH2 groups on Zn ions, ZnO particles are subjected to surface passivation protection, and then uniform and small-size nano particles grow. Compared with ZnO obtained by a common hydrothermal method, the photocatalytic hydrogel has higher photocatalytic efficiency. As a porous polymer, the chitosan gel has excellent adsorption performance; the-NH2 group in the chitosan performs passivation protection on the surface of the ZnO particles, so that electron-hole recombination can be reduced, and the photocatalytic performance is further improved; and uniform and small-sized ZnO nanoparticles have larger surface area, so that the photocatalytic performance is improved.

Proposed is a conductive hydrogel including a micelle and a metal-organic framework / surfactant composite.

This invention discloses an ultra-high toughness multifunctional self-assembled C-S-H gel material and its preparation method. The ultra-high toughness multifunctional self-assembled C-S-H gel material includes a stacked core-shell structure layer, which is composed of core-shell structure particles. The core-shell structure particles have hydrated calcium silicate nanoparticles as the core and polyacrylic acid-acrylamide copolymer as the shell. The obtained ultra-high toughness multifunctional self-assembled C-S-H gel material has high toughness, good tensile deformation properties, and temperature-sensitive effect.