109results about How to "No dissolution" patented technology

The invention discloses a granular filtering material for adsorbing and removing heavy metals in water and a preparation method thereof. The granular material consists of the following components in part by mass: 80-120 parts of an adsorbent, 7-14 pats of an additive and 0.5-3 parts of a binding agent, wherein the adsorbent consists of the following components in part by mass: 50-70 parts of coal ash and 30-50 parts of zeolite powder or sea-foam stone powder; the additive consists of the following components in part by mass: 5-7 parts of Mg-Al hydrotalcite, 2-6 parts of biochar and 0.5-1 part of magnesium Lignosulfonate; the binding agent is bentonite. The granular filtering material is prepared through the steps of adsorbent acid modification, biochar preparation, granulation and heat treatment process. According to the invention, the prepared granular filtering material is 3-6 mm in granule size, is large in adsorption capacity and excellent in adsorption effect and can effectively remove heavy metals in water, and no secondary pollutants are dissolved out, so that the granular filtering material can be applied to the treatment on heavy metal micro-polluted water and industrial waste water containing heavy metals, and has good economic and social benefits.

An efficient hyperbranched polyphosphazene flame retardant charring agent is prepared by reacting hexachlorocyclotriphosphazene with a binary compound containing two active groups. The charring agent has characteristics of good foaming charring performance, excellent flame retardant effects and good processing performance, and can be widely used in plastics, rubber, coating, adhesives, and other polymer materials. A preparing method adopts a one-pot method, and has characteristics of continuous reaction process, short reaction time and high production efficiency. By controlling the mole ratio of the hexachlorocyclotriphosphazene to the binary compound, no end-capping agent is added in the reaction process. When compared with the addition of end-capping agents in synthesis processes in triazine type charring agent patents, the synthetic process of the charring agent is simplified.

The invention discloses an adsorbent for removing heavy metal from water and a preparation method of the adsorbent, and belongs to the fields of water treatment technologies and application. The adsorbent for removing the heavy metal from the water comprises the following raw materials of a high polymer material, a metal oxide and a pore-forming agent. The prepared adsorbent has high heavy metal adsorption capacity and high adsorption speed and thoroughly removes the heavy metal from the water at high removal efficiency of over 95 percent.

The invention discloses an insoluble modified polyvinyl alcohol coating liquid and preparing method and film through the coating liquid, which comprises the following parts: polyvinyl alcohol, modifier, inorganics, crosslinking agent, catalyst and water. The coating liquid improves levelling, adhering and even property greatly, which increases obstruct property for kinds of gas.

The invention discloses antibacterial nanofibers or master batches and a preparation method thereof, including components of an antibacterial polymer resin solution and the preparation method of the antibacterial nanofibers or master batches. The antibacterial nanofibers or master batches are characterized by being formed through electrostatic spinning, melt-blowing, fibrillation and two-component compound methods on antibacterial polymer resin solution. Photosensitive molecules in the antibacterial nanofibers or the antibacterial master batches are antibacterial, do not generate a dissolution phenomenon, and are high in efficiency, wide in spectrum and antibacterial; the high temperature resistance of an organic antibacterial agent material is effectively provided; and the application range of an antibacterial agent is further expanded.

The invention provides a defluorinating adsorbent for drinking water, which is a composite metal oxide defluorinating adsorbent and a high polymer material playing a role of adhering absorbent particles. Absorbent powder and a high polymer binder are mixed, extruded, cut and dried to prepare into particles. The defluorinating adsorbent has the characteristics of good ion selectivity, high adsorption capacity, better strength in both dry and wet states, and no crushing or dissolving after being used for a long time.

The invention provides an arsenic-removing adsorbent for drinking water and a preparation method thereof. The adsorbent contains composite metal oxide and a polymer material binder. The arsenic-removing adsorbent has high adsorption property, high adsorption selectivity on arsenic in the drinking water, and high adsorption capacity; adsorbent particles have high strength in a dry state or in a moist state, and the adsorbent has low breakage rate of the particles and cannot be dissolved out during use; and the adsorbent is used under the conditions of long time and larger change of waterflow pressure.

The invention provides an arsenic removal adsorbent and a preparation method thereof. The adsorbent contains sulfate akaganeite and high-molecular material agglomerant. In the invention, the particles of the arsenic removal adsorbent have high adsorption property to have high adsorption selectivity to arsenic in drinking water, the adsorption capacity is high, the adsorbed particles have large strength under a drying state or a moisture state, the particle crushing rate is low during use, no adsorbent is dissolved out, and the arsenic removal adsorbent is suitable for being used for a long time and under the condition of larger water flow pressure change.

The invention provides a cell preservation liquid which is composed of sodium chloride, ethylene diamine tetraacetic acid disodium, PEG10000, Proclin300, methanol, and an acetic acid-sodium acetate buffer solution. The cell preservation liquid reduces the use cost, really effectively protects the integrity and stationarity of cells, prevents cell dissolution and expansion, is easy to popularize and strong in compatibility, and saves the sample preparation time.

The invention relates to a preparation method and application of a CuxO-Fe2O3 nano material, and belongs to the technical field of advanced waste water treatment and environmental catalysis.The CuxO-Fe2O3 nano material is prepared through an impregnation method, the CuxO-Fe2O3 nano material serves as a catalyst and is added into organic waste water which is difficult to degrade to catalyze an ozone reaction, degradation of organic contaminants is promoted, and the mineralization rate of organic matter is greatly increased; the CuxO-Fe2O3 nano material is small in size and good in dispersity in a nano material system, CuxO-Fe2O3 has magnetism, the catalyst subjected to the reaction can be effectively separated from water and recycled by means of an external magnetic field, the catalyst is good in stability, and the high catalytic activity can still be maintained after the catalyst is repeatedly used three times.The added CuxO-Fe2O3 catalyst can obviously improve the the removal efficiency of ozone to the contaminants, a good catalytic effect can be achieved on the condition that the pH ranges from 3 to 11, and the catalyst is small in dosage and stable in repeatedly used performance and has a wide prospect in water treatment.

The invention discloses a polyvinyl formal sponge fabric, a preparation method therefor and an application of the polyvinyl formal sponge fabric. The sponge fabric is polyvinyl formal sponge and is prepared from the following raw material ingredients in parts by mass: 80-150 parts of polyvinyl alcohol, 300-1,800 parts of water, 10-150 parts of formaldehyde or hexamethylene tetramine, 10-300 partsof hydrochloric acid or sulfuric acid and 0.01-3 parts of surfactant. According to the sponge, both porosity and pore rate are not lower than 85%, the average pore size is between 10 microns and 2mm,the degree of acetalization is 30% to 70%, and the sponge has the thickness of 0.5mm to 10cm and has the dry density of 0.05 to 0.12. According to the polyvinyl formal sponge fabric, the preparation method therefor and the application of the polyvinyl formal sponge fabric, the process is short in cycle, low in emission, low in energy consumption and high in product uniformity and can be used for carrying out continuous production; the obtained sponge fabric is integrated sponge with a three-dimensional open-pore structure, is air-permeable, fluffy, soft and comfortable, is free of fiber falling and has excellent liquid sucking characteristics; and the materials can be applied to filtering industry instead of the traditional filter media such as non-woven fabrics, Kraft paper and glass fibers.

The invention relates to an antibacterial coating, wherein the antibacterial coating is prepared from the following components: deionized water, a thickening agent, a pH regulator, a dispersant, a wetting agent, a defoamer, titanium dioxide, calcium carbonate, an acrylic emulsion having an antibacterial function, a film-forming auxiliary agent, and an antifreezing agent. The coating has good antibacterial mouldproof stability, and a coating film is good in patience and high in hardness.

The invention relates to an absorbent material for water body purification and a biological carbon brick; the absorbent material disclosed by the invention is composed of biological carbon and sodium polyacrylate (PAAS); the concentration of the PAAS solution is 0.1-50g/L; 10-200 g of biological carbon is added into 500-1000 mL of PAAS solution; the biological carbon brick comprises a hollow base; an annular top cover is installed on the top end of the base; the absorbent material is filled in the base; two layers of protective filter films cover the upper surface of the absorbent material; and a diffusion film interlayer is arranged between the two layers of filter films. According to the invention, due to the added diffusion film, PAAS and biological carbon can be effectively prevented from being dissolved; pollutants having high activity and low molecular weight are allowed to freely diffuse to enter the biological carbon brick, and therefore, the absorbent material for water body purification and the biological carbon brick disclosed by the invention have the capability of selectively eliminating hazard pollutants in a water body.

The invention provides a compound, antibacterial finishing liquid, and a preparation method and application of the compound. The general formula of the compound is shown in the description. The R1 ishalogen; the R2 is halogen, hydrogen, nitryl or heteroatom substituted or unsubstituted C1-8 hydrocarbyl; X is NH, O, S and heteroatom substituted or unsubstituted C1-18 hydrocarbyl; R3 contains at least of a quaternary ammonium salt group and a phosphonium salt group. -OH and -NH2 groups on the surfaces of high molecular material surfaces of cellulose, starch, chitosan, protein, polyvinyl alcohol(PVA) and poly(hydroxyethyl acrylate) can take chemical reaction in a chemical bonding mode to be firmly combined onto the surface of the material, so that the durable antibacterial mildewproof anti-mite performance can be given to the surface of materials of fabrics; the physical performance such as the mechanical performance, the moisture and air permeability, the color and luster and the colordifference of the material per se is hardly changed.

The invention relates to the field of cell culture and particularly relates to a whole eye cornea bioengineering cultivation method. The various layers of the cornea are respectively cultivated, and the advantage is that only a cornea layer needed by a patient is cultivated when the patient does not need the transplantation of the whole cornea. According to the provided preparation method of the whole cornea, a seed cell between the cornea epidermal layer and a mesenchymal layer is an autologous cell, a corneal endothelial cell is from a donator, a large quantity of endothelial cells are obtained through cultivation, and the limit of the source of the donator is avoided. A collagen culture medium is taken as a gluing medium between the epidermal layer and the mesenchymal layer, and the intraneural growth of the human bioengineering cornea is promoted. The provided whole cornea and partial cornea both have an excellent optical property, the patients all recovers the eyesight after the operation, the cornea has a stable biochemical characteristic, the dissolution of the cornea in the later period does not exist, the biocompatibility is excellent, and no rejection reaction is caused.

The invention relates to a sulfide composite solid-state electrolyte, a method for preparing the same and a solid-state battery. The sulfide composite solid-state electrolyte is prepared from polycarbonate alkenyl ester and raw materials for preparing sulfide solid-state electrolyte matrixes or is prepared from the polycarbonate alkenyl ester and the sulfide solid-state electrolyte matrixes. The method includes steps of S1, weighing the raw materials for preparing the sulfide solid-state electrolyte matrixes or the sulfide solid-state electrolyte matrixes according to certain weights, mixing the raw materials or the sulfide solid-state electrolyte matrixes with the polycarbonate alkenyl ester with a certain weight to obtain mixtures, then placing the mixtures into centrifugal tanks, addingsolvents into the centrifugal tanks, further adding grinding balls into the centrifugal tanks and sealing the centrifugal tanks; S2, driving the sealed centrifugal tanks to rotate and carrying out centrifugal crushing to obtain slurry; S3, scraping the slurry on platy articles and carrying out drying to obtain sulfide composite solid-state electrolyte membranes. The sulfide composite solid-stateelectrolyte, the method and the solid-state battery have the advantages that the polycarbonate alkenyl ester is used as a composite material for the sulfide composite solid-state electrolyte, and accordingly the ionic conductivity of the sulfide composite solid-state electrolyte can be improved.

The invention belongs to the technical field of roof rainwater filtering, recycling and utilization and in particular relates to a roof rainwater forced circulatory filtering, recycling and utilizing device and method. According to the invention, in the roof rainwater forced circulatory filtering, recycling and utilizing device, active carbon is used as filter material; a uniform water distribution pipe and a filter material drawer as well as an interior porous bearing layer are also arranged in the device; the filter material drawer can be pulled out; the collected roof rainwater is uniformly distributed on the active carbon layer with a certain thickness by using a perforated pipe; the bottom outlet water of the box body is lifted back to a roof rainwater collecting device by using a pump to be redistributed and is filtered by using the active carbon layer in circulation; and COD and chrominance which is hard to be removed in the roof rainwater can be removed by using the adsorbing and filtering property of the active carbon.

The invention belongs to the field of anchoring agent production, and particularly relates to unmanned production equipment for an anchoring agent for anchor net supporting. The unmanned production equipment comprises a stock bin, a stock bin feeding system, a resin stirring system, a curing agent stirring system, a plaster cylinder, a weighing stock bin, a stirring system and a machine head control cabinet, wherein the resin stirring system, the curing agent stirring system, the plaster cylinder, the weighing stock bin, the stirring system and the machine head control cabinet are connected according to the working procedures and arranged in a layered mode in the material flow direction. The stock bin supplies anchoring agent raw materials to the weighing stock bin, the weighing stock bin quantitatively feeds materials to the stirring system, the stirring system uniformly mixes the anchoring agent raw materials and resin to prepare plaster, and the plaster enters the plaster cylinder and then is pushed into the machine head control cabinet. The curing agent stirring system is connected with the machine head control cabinet, a curing agent is conveyed to the machine head control cabinet, and the plaster and the curing agent are quantitatively canned through the machine head control cabinet. The whole production line is arranged in a layered mode, the gravitational potential energy of the raw materials is fully utilized, the system integration is high, and a large number of conveying pipelines and connectors are saved. Compared with existing anchoring agent production equipment in China, the scheme has the advantages that the plant space is reasonably utilized, the occupied space is reduced, and the arrangement is more compact.

The invention discloses an alginate fiber dressing. Polymer guanidine and/or salt thereof are/is attached to the alginate fiber dressing through electrostatic interaction. The dressing disclosed by the invention not only has excellent antibacterial performance, but also has good hemostatic performance, is free of dissolution and long in acting time, ensures the safety to human bodies and environments, has excellent washable performance (washable for at least 50 times) and can be repeatedly used, and tests prove that the dressing can be continuously antibacterial for at least 10 cycles. The dressing disclosed by the invention can also be used for products such as face towels, facial masks and the like. The preparation method of the dressing is simple in process, low in production cost and suitable for industrial mass production.