77results about How to "Conducive to fixation" patented technology

The invention relates to a method for preparing dendritic nano-silver by liquid-phase synthesis. The method is characterized by comprising the following steps: a silver-ammonia solution with silver-ammonia concentration of 0.1 mol/L to 0.5mol/L is prepared, then a crystal-formation guider and a nometer protective agent are added, stirring is carried out till the mixed solution is evenly mixed, and reaction solution is obtained; an ascorbic acid solution with concentration of 0.4mol/L to 0.8mol/L is dripped into the reaction solution to carry out reduction reaction, the solution after reaction is directly filtered by decompression, the solid phase after filtering is baked in an oven to remove water, so as to obtain the dendritic nano-silver. The method has simple preparation process, the reagent used is nontoxic and of environmental protection, the diameter of the dendritic nano-silver obtained is less than 30nm, the length of the dentrites is less than 100nm, the cluster length of the dentrites is less than 200nm, and the granularity of the dendritic nano-silver is even and the structure is stable. The dendritic nano-silver obtained by the method which is composite with polymers can improve conductivity, conductive circuit can be formed only with relatively little silver powder, filling quantity of silver powder can be reduced and cost of conductive agents can be saved.

A provided preparation method for wool keratin regenerated cellulose fiber comprises the concrete steps: firstly preparing a viscose-rayon spinning solution, then preparing a wool keratin solution, then mixing the viscose-rayon spinning solution and the wool keratin solution, then adding a crosslinking agent, mixing and performing wet-process spinning, so as to obtain wool keratin regenerated cellulose fiber. The wool keratin regenerated cellulose fiber prepared by employing the method has the protein content of 6% or more, and the production technology is simple in process and high in production efficiency.

The invention discloses a paper dry strength agent. Polyvinyl alcohol is etherified by a cationic etherifying agent to serve as a polymer emulsifier for preparation of a soap-free polymerization cross-linked polyacrylamide emulsion, which is used as a paper dry strength agent. The paper dry strength agent provided by the invention has the advantages of good strengthening effect, small loss in white water, good fixation, few jello, and environmental protection, etc. After being added into paper pulp, the dry strength agent can well improve the circumferential pressure, folding resistance, breakage resistance, tension, paper internal bonding strength and other performance of finished paper.

The invention discloses a monascorubrin mordant dyeing method of silk textile, which is characterized by comprising the following step: using monascorubrin to perform mordant dyeing of silk textile by taking rare earth as mordant, wherein the use of the mordant is 0.5-2 g/L, and the concentration of the monascorubrin dye is 1-5% owf. The method uses the food coloring agent monascorubrin in the dyeing process of real silk, expands the application field of the monascus industry, can obtain relatively good color yield and color fastness of monascorubrin on the silk textile through the use of themonascorubrin, and realizes the green ecological staining process of silk textile.

The invention relates to an ecological remediation method for a slope of a broken mountain. Ecological remediation can be conducted on a steep cliff wall slope of which the slope surface is smooth andlevel by constructing a slope remediation structure composed of a large-pore vegetation concrete layer, a substrate material layer and a small-pore vegetation concrete layer. The surface roughness ofthe slope sprayed with the large-pore vegetation concrete layer is significantly increased, a substrate material which is subsequently sprayed can not be prone to sliding down, small-pore vegetationconcrete is sprayed to the outer layer of the substrate material, therefore, through the double-layer vegetation concrete structure, it can be better guaranteed that the substrate material is attachedto the slope, and sliding and rain water scouring are avoided. In addition, the large-pore structure of the large-pore vegetation concrete layer is more beneficial for growth of a plant root system,the small-pore vegetation concrete layer can purify non-point source pollution, rotten ecological desilting sludge is added into the substrate material, and the vegetation degradation problem caused by insufficient fertility is solved.

The method for controlling desert or desertified soil by urban organic wastes includes the following steps: purvelizing water-containing sludge treated by urban sewage treatment plant or city domestic refuse to obtain mixture whose solid material content is 40-60, mixing said mixture with quickling whose demand is 20-30% of sludge weight to be treated, stirring them, utilizing heat quantity and alkali action released from quicklime mixed with water (pH of treated sludge is about 12) to kill virus and partial bacteria and remain beneficial bacteria, adding acid material, stirring them and neutralizing to that pH value is about 8-10 to obtain paste material, granulating and packaging so as to obtain the invented product. Said product can be mixed plant seed, and can be directly applied to desert or desertified soil.

The invention relates to a preparation method and application of a deacetylated chitosan ecological finishing agent used for finishing natural fibers and regenerated natural fiber fabrics. The invention aims to solve the technical problems of a crosslinking problem, size and uniformity of chitosan acetic acid sol particles and stability of the finishing agent. The method is technically characterized by comprising the following steps: mixing chitosan and lacial acetic acid to form an acetic acid aqueous solution with the acetic acid concentration of 1.5-3 percent, dripping a 10g/L of ion stabilizer agar solution, regulating the size of the chitosan colloid particles to be in a distribution range of 60-100nm, forming a uniform and stable acetic acid-chitosan colloid solution of which the colloid size is in a nanoscale, controlling the pH value to be 4-7, wherein the viscosity of the colloid solution is 2-60mPa.s. The method has good chitosan fixation effect, does not have harmful or chemical residues and is environment-friendly, high-efficiency, harmless to human bodies and rich in raw material source.

The invention discloses an artificial algal reef and a manufacturing method thereof, and relates to the artificial algal reef and a preparation method thereof. The artificial algal reef comprises an algal reef main body made from reinforcements and concrete; vegetable gum grains are arranged on the algal reef main body, and have the grain size of 1 to 60 mm; and the weight of the vegetable gum grains is 0.01% to 0.6% of the total weight of the artificial algal reef. The preparation method of the artificial algal reef comprises the following steps: 2 to 6 parts of cement, 3 to 10 parts of sand, 8 to 12 parts of stone and 0.001 to 0.008 part of vegetable gun grains are selected through proportioning in part by weight, wherein the grain sizes of the vegetable gum grains are 1 to 10 mm; the algal reef is prepared from cement, sand, stones and a reinforcement cage; and the vegetable gum grains are added before hardening. When the artificial algal reef is used, vegetable gum is dissolved in the water, a microcellular structure is formed on the surface of a reef, the roughness of the surface of the reef is increased, the adhesion possibility of algae spores is improved, a sessile substrate suitable for the adhesion and the growth of the algae spores is provided, and habitats for foraging, breeding, growing and the like are provided for aquatic organisms such as fishes.

The invention provides a coral reef transplanting repairing device applicable to South China Sea. The coral reef transplanting repairing device comprises a lateral wall, bottom feet, a rigid support, a base plate, a control box, a cross rotary knob, a worm, a bevel gear and a coral cultivation device. By the arrangement, the coral reef transplanting repairing device has the advantages that during a coral spawning period, the coral reef transplanting repairing device fixed on the outer slope in front of a coral reef attracts and fixes drifting coral larvae, and a hole is drilled in the degenerated coral reef and the coral cultivation device attached with coral is inserted and fixed into the hole after the coral is mature so as to complete the ecologic repairing of the coral reef. By the coral reef transplanting repairing device, the problems that a traditional coral reef transplanting repairing device is low in coral transplanting survival rate and difficult in underwater coral transplanting and fixing, the coral larvae are preyed easily and covered by sediments, and the like are solved, and coral reef transplanting repairing efficiency and quality are increased.

The invention discloses a method for preparing a composite photocatalysis bleaching system and a textile bleaching technology. The bleaching technology can be finished by the following steps: firstly, a textile is soaked in a hydrogen peroxide blenching system containing inositol hexaphosphate ammonium salt and then soaked in a titanium dioxide dispersing system containing sodium dodecyl benzene sulfonate and sodium hexametaphosphate; then, the textile is put in an ultraviolet circulating irradiation device. Compared with the prior art, the bleaching technology has the advantages that the bleached textile has high whiteness and small strength losses, the treatment time is short, no three wastes are discharged, technical advantages of energy conservation and emission reduction are achieved, and the photocatalysis bleaching performance of yarns can be inherited by down-stream products, such as fabric.

The invention discloses sweat discharge naked feeling triple antibacterial underpants and a manufacturing method thereof. The manufacturing method of the sweat discharge naked feeling triple antibacterial underpants comprises the following steps: (1) preparing an antibacterial finishing liquid; (2) carrying out lining antibacterial finishing; and (3) cutting and sewing a large body fabric, a rubber rib and an antibacterial lining into underpants by using a common method, thereby obtaining the sweat discharge naked feeling triple antibacterial underpants. By adopting the sweat discharge naked feeling triple antibacterial underpants and the manufacturing method thereof, the lining is made of an X-STATIC and bamdal fiber and is further subjected to antibacterial finishing, a naked feeling fabric is adopted as the large body fabric, the obtained sweat discharge naked feeling triple antibacterial underpants are good in moisture absorption and sweat discharge, soft and breathable, high in yellowing resistance, high in washing resistance, remarkable in antibacterial property after multiple times of washing and comfortable to wear, and the remarkable and long-lasting antibacterial propertyis beneficial to human body health.

The invention discloses sodium alginate, and a preparation method and an application of sodium alginate. The preparation method of sodium alginate comprises the steps of adding sorbitol after a neutralization procedure, and performing mixing, granulation, drying and grinding to form a final product. Prepared sodium alginate has the advantages of good appearance, high rheological property and the like; a preparation technology is simple and easy to implement and popularize; a PVI (polyvinyl isobutyl ether) value of printing paste of sodium alginate is 0.65-0.73; defects such as blade streaks and mesh clogging during printing can be effectively reduced; a formula of the printing paste of sodium alginate comprises sorbitol; fixation between a dye and a fabric can be promoted; the fabric is dyed uniformly; the color yield and fastness of the printing are increased, so that the consumption of urea in the printing can be reduced; the rheological property of sodium alginate can also be improved; the generation of the printing defects is reduced; the printing of the fabric is uniform; a color is bright; and a pattern is clear.

The invention provides a device for planting submerged plants in a deepwater area. The device comprises a buoyancy module and a planting module, the buoyancy module is formed by connecting multiple float bowls (1) through connecting rods (2), the planting module comprises a plate frame (5) and planting linen (4), the upper surface and the lower surface of the plate frame (5) separately fix the planting linen (4), a coconut fiber filler layer and a gravel layer are sequentially laid inside a formed cavity from bottom to top, and the plate frame (5) is connected with the buoyancy module through lifting ropes (3). The device has the advantages that limit on planting of the submerged plants of water depth can be overcome, and the submerged plants can be planted manually even in a deepwater lake or a deepwater waterscape pool; the problem that original soil around root systems of the plants is lost due to scouring of water currents can be solved, the submerged plants can be stably fixed under water, growing is good, and the survival rate of the manually planted submerged plants is increased. Onshore planting is achieved, planting efficiency is improved, and planting cost is lowered.

The invention provides a red azo reactive dye containing a sulfanilamide structure, which is of a structure shown in a general formula I. The dye is prepared by taking a H acid as a parent, taking chlorine or fluorine substituted s-triazine, ethyl sulfone sulphate as active groups, taking sulfanilamide and derivatives thereof or (beta-sulphate ethyl sulfone) aniline as diazo components, and taking sulfanilamide and derivatives thereof, (beta-sulphate ethyl sulfone) aniline, aminobenzophenone or long carbon chain fatty amine as condensation components. The introduction of a sulfanilamide-like structure increases the structure size of the dye; because the introduction of the sulfanilamide structure reduces the solubility of the reactive dye to a certain extent, the adsorption of the dye on fibers is promoted, so that the dye has a better fixation rate.

The invention provides an immobilized microbe and a preparation method and applications thereof, and relates to the technical field of sewage treatment. The immobilized microbe comprises an organic immobilizing carrier and microbes immobilized on the organic immobilizing carrier; and the organic immobilizing carrier comprises carbonized cotton cloth with a mass percentage of 5-100%. The inventionalso relates to a preparation method and applications of the immobilized microbe. Carbonized cotton cloth is added into the microbe immobilizing carrier, comprises gaps for immobilizing microbes, andpromotes the immobilization and strong reproduction of microbes. At the same time, carbonized cotton cloth has an enough performance on absorbing and maintaining water to guarantee the strong reproduction of microbes. moreover, carbonized cotton cloth has the advantages of easy degradation and low cost. The immobilized microbe can be used a fertilizer of compost, a soil improver, a fermentation starter/promoter, a deodorant, a wastewater cleanser, a bathing pool cleanser, a river/lake cleanser, and an air cleanser.

The invention discloses an amphoteric dry strength agent for paper. By taking modified starch as a polymeric emulsifier, the starch is grafted to polyacrylamide chain macromolecules in the polymerization process to prepare a soap-free latent cross-linking type polyacrylamide emulsion as the dry strength agent for the paper. The amphoteric dry strength agent for the paper has the advantages of good strengthening effect, little loss of whitewater, good fixation, little jello, environmental protection and the like and can well improve the properties, including ring crush strength, folding strength, bursting strength, tensile strength and paper internal binding strength, of finished paper after paper pulp is added.

The invention provides an ultraviolet protective energy-saving lamp tube. A zinc oxide film is plated on the inner surface of an energy-saving lamp tube, thus the harm on people from the ultraviolet radiation of an energy-saving lamp is reduced, and the shortage that the traditional ultraviolet resisting products can not absorb a great deal of visible light is overcome. A method for treating the inner surface of the energy-saving lamp tube disclosed by the invention comprises the step of preparing a ZnO film with a micro-nano structure on the inner surface of the energy-saving lamp tube by a sol-gel spin-coating technique, wherein the obtained energy-saving lamp has low light transmission rate within the ultraviolet band, the light transmission rate within the ultraviolet band can be below 10%, and the light transmission rate within the visible light band is as high as 90%. The invention has the advantages that the ZnO film and fluorescent powders can be greatly fixed and do not undergo the chemical reaction; the cost is low; and the ultraviolet protective energy-saving lamp tube can be better compatible with the production process of the energy-saving lamp and can take the place of the traditional Al2O3 protective film.

The invention provides a construction method of microbial carriers for wastewater treatment. The construction method comprises the following steps: taking wheat straws or other plant remains as microbial fixed carriers and taking sponge or porous plastic as supporting materials, uniformly mixing the microbial fixed carriers and the supporting materials, and filling in a swage treatment system. The affinity of the carriers in the biofilm process on the microbes in excellent, and the nutrition supply of the microbes is good; moreover, the sewage treatment system has the characteristics of high wastewater load impact resistance, can directly treat high-concentration and stable-quality polluted wastewater, and does not need diluting wastewater so as to solve the problem that polluted wastewater with three-high characteristics causes the high load impact.

A water-treatment material and its production are disclosed. The material is prepared by taking a loosen and light substance as skeleton material, adding into concave-convex bar clay with proportion=(50-80): (20-50), mixing, mixing, adding into water, agitating, shaping, air drying, calcining at 800-1100 Deg C. for 4hrs, obtaining products, cooling to room temperature and spraying microbe with bacillus onto surface. It achieves good degradation and adhering effect, high efficiency and low cost.