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

Method for preparing dendritic nano-silver by liquid phase synthesis

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.
Owner:NORTHEASTERN UNIV

Paper dry strength agent

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.
Owner:ZHEJIANG KESIKE CHEM NEW MATERIAL CO LTD

Multifunctional wood inflaming retarding agent and method for preparing smoke suppressing and inflaming retarding pinus sylvestris solid wood by utilizing of multifunctional wood inflaming retarding agent

The invention discloses a multifunctional wood inflaming retarding agent and a method for preparing smoke suppressing and inflaming retarding pinus sylvestris solid wood by utilizing of the multifunctional wood inflaming retarding agent, and relates to the multifunctional wood inflaming retarding agent capable of antiflaming, suppressing smoke and preventing running off and a technique for processing the pinus sylvestris solid wood by utilizing the antiflaming and smoke suppressing properties of the multifunctional wood inflaming retarding agent. To solve the problems that the pinus sylvestris solid wood is rich in grease and can not be immersed easily, the flame retardation property of an existing wood inflaming retarding agent is single, and antiflaming components are easy to run off, the wood inflaming retarding agent comprises, by weight, 22-56 parts of phosphoric acid amidinourea, 15-25 parts of boric acid, 24-56 parts of water-solubility ammonium polyphosphate, 1-5 parts of ammonium molybdate and 20-45 parts of silica sol. The preparation method of the inflaming retarding and smoke suppressing pinus sylvestris solid wood comprises the following steps. Firstly, the microwave process is carried out on the dried pinus sylvestris solid wood. Secondly, the pinus sylvestris solid wood is placed in inflaming retarding liquid to be pressurized and immersed in a vacuum mode. The dried inflaming retarding and smoke suppressing pinus sylvestris solid wood has a good smoke suppressing property, the smoke suppressing effect and anti-running-off property are obvious.
Owner:NORTHEAST FORESTRY UNIVERSITY

Monascorubrin mordant dyeing method of silk textile

InactiveCN102182078AIncreased dye affinityImprove dye uptake and color fastnessDyeing processAnimal fibresMonascorubrinMonascus
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.
Owner:SHAOXING UNIVERSITY

Artificial algal reef and manufacturing method thereof

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.
Owner:山东大学(威海)

Method for preparing dendritic nano-silver by liquid phase synthesis

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 reactionis 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 thedentrites 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.
Owner:NORTHEASTERN UNIV LIAONING

Red azo reactive dye containing sulfanilamide structure

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.
Owner:DALIAN UNIV OF TECH

Preparation method of vinylon fabric-based graphene/manganese dioxide electrode material

The invention discloses a preparation method of a vinylon fabric-based graphene / manganese dioxide electrode material. The preparation method comprises the following steps: (1) coating of a vinylon fabric with graphene oxide; (2) reduction of graphene oxide: a, under the condition of 80-100 DEG C, soaking the vinylon fabric with the graphene oxide coating into a reducing agent solution for 1-2 hours, taking out, washing with water and drying; b, putting the fabric into a 700-900W microwave oven, and heating for 1-3s with high fire, so as to obtain a graphene coating vinylon fabric; and (3) manganese dioxide deposition: depositing manganese dioxide on the surface of the graphene coating vinylon fabric by adopting electrochemical deposition. According to the invention, the graphene-vinylon composite material is used as an electrode current collector, the flexible performance of the electrode material is improved, the electrochemical performance of the electrode material is greatly improved through non-toxic simple secondary reduction and environment-friendly electrochemical deposition of manganese dioxide metal oxide, and a basis is provided for further development of environment-friendly, flexible, light and excellent-performance flexible capacitors and battery electrodes.
Owner:NANTONG TEXTILE & SILK IND TECH RES INST +1

Amphoteric dry strength agent for paper

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.
Owner:ZHEJIANG KESIKE CHEM NEW MATERIAL CO LTD

Plant biological adaptability recovery method of water-body compact bottom sediment

The invention relates to a plant biological adaptability recovery method of water-body compact bottom sediment, which comprises the following steps: after selecting the water plant species, respectively determining the recovery regions for emerged plants, floating-leaved plants and submerged plants according to the water depth distribution throughout the year; acquiring and analyzing the porosity of the surface sediment of each plant recovery region, and determining the bottom sediment biological adaptability remediation region; determining the compact bottom sediment remediation depth according to the water plant species, and selecting a carving component to geometrically carve the water-body bottom sediment, thereby destroying the appearance morphology and the bedding structure; and finally, growing the water plants on the bottom sediment of the plant biological adaptability recovery region. In the compact bottom sediment water area, the water-body bottom sediment is manually carved according to the natural conditions and the characteristics of the water plants to increase the porosity, thereby improving the surface bottom sediment, promoting the apposition growth and fixation, and further realizing the water plant recovery of the water body.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY

Construction method of microbial carrier for wastewater treatment

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.
Owner:ANHUI SCI & TECH UNIV
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