105results about How to "Lower the foaming temperature" patented technology

The invention discloses a method for producing synthetic leather by using a solvent-free double-component polyurethane scraping and coating method and the synthetic leather produced by using the same. The method comprises the following steps: (1) controlling the flow of a material loading machine so that an M material and an N material are mixed in the mixing chamber of the material loading machine and then poured, scraped and coated to release paper coated with an isolation layer, drying so as to obtain a foamed material layer, wherein the coating amount of scraping and coating is 50-2000g/m<2>; (2) pressing and compounding the foamed material layer, heating and solidifying; and (3) coiling, curing, and separating out the release paper at last, so as to obtain the synthetic leather finished product. According to the invention, an organic solvent and water are not used in the synthesis and mixing of polyurethane resin on a foaming layer and a bonding layer and in the various links of embarkation. Compared with the method for producing the foaming layer with a water-based polyurethane composite material, the method disclosed by the invention can greatly reduce energy consumption; and the synthetic leather has good property and excellent hand feeling.

The invention discloses a making method of foam glass based on boron mud in the functional inorganic material technical domain, which comprises the following steps: blending the broken waste glass and magnesium-stripping boron-mud according to proportion; grinding into raw material; heating and fusing the raw material; quenching; drying; grinding into glass powder; adding foamier and booster solvent to form the foam glass mating slurry; placing the mating slurry into the mould; pressing; shaping; heating; foaming; stabilizing the foam; annealing; obtaining the foam glass; adjusting the foam-pore structure according to the adjusted component and technique condition; reaching the goal of insulation, silence or water-retaining.

The invention relates to low-temperature microcrystalline foam glass and a preparation method thereof; molar ratios of main components of the microcrystalline foam glass are: 0.1-1.0:1 for the molar ratio of Na2O (K2O) to SiO2, 1.0-20:1 for the molar ratio of SiO2 to Al2O3, and 0-0.2:1 for the molar ratio of B2O3 to SiO2; the preparation method comprises the following steps: (1) mixing and stirring water glass and active aggregates, adding an additive to obtain sol; (2) aging the sol for 1-7 days, drying the aged sol to prepare solid gel with a water content of 10%-50%; (3) triturating the solid gel, adding into a mold, and finally foaming. The microcrystalline foam glass of the invention has low density, high intensity, good heat insulation performance, long service life, and good fireproof performance; and the preparation method of the invention is simple in operation, and reduces the foaming temperature.

The invention discloses a method for preparing boron-containing foam glass, which comprises the following steps of: cleaning waste glass in which boron is more than 12 mass percent, performing ball milling to obtain glass powder; performing ball milling on glass powder, NaNO3, KNO3, LiNO3, Zn((NO3)2, Zr(NO3)4.5H2O and barite in an agate jar to obtain a batch; and adding the batch into a heat-resistant steel mold, and preheating, foaming and annealing in a foam heater to obtain the foam glass. Multiple kinds of waste glass with more than 12 percent of boron are taken as raw materials, the NaNO3, KNO3, LiNO3, Zn((NO3)2, Zr(NO3)4.5H2O and the barite are taken as foaming agents, the barite can reduce the volatilization of boron in the batch, the foam temperature of the foam glass is reduced, and the mechanical properties, thermal stability and corrosion resistance of the foam glass are improved. Therefore, the boron-containing foam glass can be applied to the special fields requiring high corrosion resistance, high temperature resistance and high thermal stability.

The invention discloses a method for preparing a light porous particle controlled release fertilizer. The method comprises the following steps: uniformly mixing CRT screen glass powder, 5-20 percent of monopotassium phosphate, dipotassium phosphate, potassium sulfate, tripotassium phosphate, potassium chloride, zinc dihydrogen phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, cobalt oxide and manganese oxide, pressing, molding, feeding the mixture into a roller kiln at the temperature of 650-660 DEG C, and preserving the temperature to be 780-790 DEG C for 15-30 minutes; and reducing the temperature to be 50-80 DEG C or below at a rate of 100-200 DEG C per minute, thereby obtaining the light porous particle controlled release fertilizer. The light porous particle controlled release fertilizer prepared by the invention can be widely applied to the fields of indoor horticulture, urban gardening, street planting and farmlands. The preparation process is simple in operating process and low in cost, the production cost of the controlled release fertilizer can be effectively reduced, the environment is protected, wastes are changed into valuable materials, and the light porous particle controlled release fertilizer is suitable for large-scale industrial production and has obvious economic benefits and environmental protection benefits.

The invention discloses a preparation method of a low-density thermoplastic polyimide micro-foamed material. In the preparation method of the low-density thermoplastic polyimide micro-foamed material, when thermoplastic polyimide is physically foamed by taking one or more of high-pressure fluids CO2, N2, HFC and HCFC as a physical foaming agent and by taking one or more of tetrahydrofuran, chloroform, ethanol, methanol, acetone, pyridine, N-methyl-pyrrolidone, and N, N-dimethylformamide as an organic co-solvent, the high pressure fluid and the organic solvent are kept in high-pressure saturated states in a polyimide sheet, and then, the saturated polyimide sheet is foamed in a high-temperature oil bath. The obtained polyimide micro-foamed sheet is a light-weight and low-density material, is smooth in surface, soft in texture, free of powder dropping in the using process, uniform in cell structure, high in cell density and excellent in tensile property, and is a foamed material with a wide application prospect.

The invention belongs to the technical field of resource utilization of solid wastes, and particularly relates to a method for resource utilization of cobalt smelting waste slag. The invention provides the method for preparing foamed ceramic by microwave sintering of the cobalt smelting waste slag. The method comprises the following steps: carrying out proportioning by using the cobalt smelting waste slag, filler, a liquid phase agent, a plasticizer and a foaming agent, carrying out grinding, mixing, granulating, and mold pressing or mold powder accumulation to prepare a green body; and carrying out microwave sintering to prepare the foamed ceramic. The microwave heating method is adopted, and compared with a conventional electric heating or fuel heating mode, the microwave heating methodhas the advantages that the foaming temperature is greatly reduced, the foaming time is shortened, and therefore energy consumption is greatly reduced. According to the method, the problems of high energy consumption in existing formed ceramic industry and high additional value comprehensive utilization of the cobalt smelting waste slag are solved.

The invention relates to a method for producing foam glass mosaic based on boron sludge and pertains to the technical field of functional inorganic material. The invention is characterized in that the invention comprises the steps: waste glass is crushed, mixed with de-magging boron sludge according to ratio and grinded into green stock; the green stock is heated, quenched, dried and grinded into glass powder; certain amount of glass powder is mixed with vesicant, latent solvent and foam stabilizer to form foam glass layer material; certain amount of glass powder, pigment and complete fusion are mixed to form mosaic layer material; the mosaic layer material and the foam glass layer material are put into a die sequentially, pressed and molded and the foam glass mosaic is obtained after heating, foaming, foam stabilizing and annealing. The product of the invention is a bifunctional compound material, one layer of which is foam glass phase and other layer of which is mosaic phase, thus solving the problem that the foam glass can not be directly used as building material due to porosity and uneven color, moreover, the invention can reduce the cost of foam glass mosaic without wastes being discharged during the whole process, has greening and environment protective functions and pertains to environmental friendly technology.

The invention relates to a manufacturing method of a lithium slag lightweight ceramic panel. The lithium slag lightweight ceramic panel is prepared from the following raw materials: 30-65 wt% of lithium slag, 10-30 wt% of feldspar, 10-30 wt% of quartz powder, 1-10 wt% of alumina powder, and 0.2-3 wt% of foaming agent; the preparation method comprises the following steps: 1) take raw materials fordry milling and mix in proportion to obtain a mixture; 2) add water to the mixture, stir, granulate, dry and sieve to obtain granules; 3) pack the granules in a sagger, spread out and then fire to obtain a lightweight ceramic panel after cooling. By the manufacturing method, a certain proportion of alumina powder, quartz powder and feldspar are added to the lithium tail slag, thereby overcoming the technical problem of preparing the lightweight ceramic panel from the lithium tail slag, and obtaining a qualified lightweight ceramic panel.

The invention discloses a high-temperature-resistant and fire-resistant exterior wall panel, which comprises a base layer, a fire-resistant insulation layer, a plastering mortar layer, a waterproof layer, a decorative coating and a wear-resistant layer arranged sequentially from the inside to the outside; Parts include: 27-30 parts of hydroquinone, 11-14 parts of hexachlorocyclotriphosphazene, 18-22 parts of polyoxypropylene glycol, 65-70 parts of isophorone diisocyanate, trimethylpentanediol 50-60 parts, 3-4 parts of glucose, 0.3-0.6 parts of organic bismuth catalyst DY-20, 25-35 parts of foaming agent, 9-12 parts of foaming aid, 19-22 parts of palygorskite, 13 parts of dolomite ~16 parts, diatomite 6-9 parts, glass fiber 5-8 parts, straw silk 12-15 parts, magnesium hydroxide 16-19 parts, anti-aging agent 2-3 parts. The high-temperature-resistant fire-proof exterior wall panel proposed by the invention has excellent high-temperature resistance and fire-proof performance, excellent water resistance, high hardness and good compression resistance.

The invention relates to a low-temperature type ADCA (Azodicarbonamide) foaming agent. The low-temperature type ADCA foaming agent is formed by combining one or more activating agents and ADCA according to a certain proportion, wherein the activating agent can be selected from metallic compounds such as chromium, zinc and lead, urea derivatives, nitroguanidine and the like. The lowest decomposition temperature of the foaming agent provided by the invention can reach 150 DEG C-112 DEG C; the forming agent is a novel heat absorption type forming agent and has a stable, compact and regular foam structure; and the foaming agent can be widely used for rolling leathers and rubbers and is simultaneously used for foaming medicines.

The invention belongs to the field of preparation of building materials, and particularly relates to a method for preparing light and fireproof pottery sand by using coal mining solid waste, namely coal gangue. The coal gangue pottery sand is prepared from the following components in part by weight: 30 to 70 parts of coal gangue, 20 to 70 parts of glass powder, 2 to 10 parts of foaming agent and 10 to 25 parts of binding agent. The coal gangue pottery sand is prepared from the glass powder used as the raw material, the foaming temperature in a foaming step can be reduced greatly by using the high dispersibility of the glass powder, and the coal gangue pottery sand has the characteristic of porosity, so that the pottery sand is good in heat insulation effect; the bulk density of the prepared coal gangue pottery sand is leas than 650kg/<3>, so that the coal gangue pottery sand is light in weight; and the thermal coefficient of the coal gangue pottery sand is less than 0.15W/(m.K), so that the coal gangue pottery sand is strong in heat insulation effect.

The invention provides a method for preparing warm mixing foamed asphalt. The method comprises the following steps: stirring and mixing asphalt, a surfactant, dimethyl formamide, bentonite, hydroxypropyl methylcellulose and water, and cooling to the room temperature so as to obtain mixed asphalt I; further heating the mixed asphalt I, adding polyvinyl alcohol, calcium bicarbonate and absolute ethyl alcohol, stirring, and leaving to stand so as to obtain modified emulsified asphalt; mixing the asphalt, 2-acrylamide-2-methylpropanesulfonic acid and ethylene glycol dimethacrylate, heating till the mixture is in a fluid state, cooling, adding glycerol, and stirring for mixing, so as to obtain mixed asphalt II; finally, heating the mixed asphalt, adding the modified emulsified asphalt in a stirring state, and keeping stirring after the modified emulsified asphalt is added, thereby obtaining the warm mixing foamed asphalt. The warm mixing foamed asphalt prepared by using the method has a relatively high expansion rate and a relatively long half-life period, and is stable in foaming state.

The invention provides a silicate fireproof thermal insulation material composition. The silicate fireproof thermal insulation material composition is prepared from 100 parts by weight of water glass, 30-40 parts by weight of hollow glass microbeads, 0.5-1 part by weight of chemical foaming agent, 0.5-2 parts by weight of binder, 0.5-2 parts by weight of curing agent, 0.5-1 part by weight of polyether polyol and 0.5-1 part by weight of polyisocyanate; the fireproof thermal insulation material has the advantages of small volume weight, low heat conductivity coefficient and high compressive strength. The invention also provides a preparation method of the silicate fireproof thermal insulation material; the preparation method is simple in process, low in energy consumption and short in time.

The invention relates to a preparation method of an environment-friendly porous rock granular material, which comprises the following steps: carrying out crushing and ball milling on screen glass to obtain CRT (cathode ray tube) screen glass powder; putting the CRT screen glass powder, manganese peroxide, sodium nitrate, lithium nitrate and antimony trisulfide in a ball mill, and carrying out ball milling to form a mixture; adding the mixture into a mold, sending into a roller hearth kiln, keeping the temperature for 5-10 minutes, and heating to 770-780 DEG C at the rate of 4-8 DEG C/minute; heating to 780-790 DEG C at the rate of 0.2-1 DEG C/minute; and cooling to 50-80 DEG C below at the rate of 80-200 DEG C/minute, crushing and screening to obtain the environment-friendly porous rock granular material. The environment-friendly porous rock granular material has the advantages of high strength, high water absorptivity, high aeration porosity, low foaming temperature and low use cost, and can not generate environment pollution in the production and use process. The environment-friendly porous rock granular material can be stored underground as excellent rain water, is a water purification material of rivers, lakes, reservoirs, fish ponds and the like, and can also be used as a heat-insulation fireproof construction material and other novel materials.

The invention discloses a process for preparing printing artificial flocking paper. The process comprises the following steps: mixing self-drying color ink, polyethylene terephthalate (PET) gloss oil and a low-temperature expansive type microsphere foaming agent and stirring uniformly to obtain a mixed material; and printing the mixed material on paper through silk screen and curing at 80 to 100 DEG C for 3 to 5 seconds to obtain the printing artificial flocking paper, wherein the mass ratio of the self-drying color ink to the PET gloss oil is from 3:4 to 3:1, and the weight of the low-temperature foaming agent is 1 to 80 percent of the total weight of the self-drying color ink and the PET gloss oil. By the process, a medium-and-low-temperature foaming material is adopted, the foaming temperature is low and the foaming time is short, a foaming effect can be realized through one-step heating of an infrared or ultraviolet drying channel of a common screen printer, and the processing requirement of paper packaging is met. Compared with a static flocking process, the process has high production efficiency, low cost and good adhesive force of a finished product, and can prepare the printing artificial flocking paper with different colors by adjusting the color of the color ink. Colorless and transparent bubbles are densely distributed on the surface of the printing artificial flocking paper prepared by the process, and an anti-counterfeit effect is achieved.

The invention discloses high-flame-retardance and high-toughness expandable polystyrene which comprises the following raw materials in parts by weight: 95-105 parts of styrene, 20-30 parts of ethylene-propylene-diene monomer rubber, 25-35 parts of polyethylene, 150-170 parts of water, 0.3-0.4 parts of dibenzoyl peroxide, 0.05-0.1 parts of tert-butyl peroxybenzoate, 0.2-0.3 parts of dicumyl peroxide, 2-5 parts of nano calcium silicate, 0.02-0.04 part of a silane coupling agent KH560, 2-4 parts of polyvinyl alcohol, 1-3 parts of cellulose ether, 2-8 parts of nekal, 0.05-0.15 parts of a defoamer, 0.2-0.5 parts of an antioxidant, 0.4-1.2 parts of a flame retardant and 7-12 parts of a foamer. The high-flame-retardance and high-toughness expandable polystyrene disclosed by the invention is excellent in flame-retardant and heat-resistant performance, good in toughness and excellent in impact resistance.

The invention belongs to the technical field of polymer function materials, and relates to a polyolefin foaming masterbatch composition and preparation method and application. The foaming masterbatch is prepared from, by weight, 50-80 parts of POE resin, 1-10 parts of a surface active agent, 10-40 parts of a foaming agent, 1-10 parts of a nucleating agent and 0.1-0.3 part of an initiator. The preparation method of the foaming masterbatch comprises the steps that the components are premixed in a mixer for 2-10 min, the mixing temperature is not higher than 40 DEG C, melt mixing is performed through an extruder, modular surface air cooling pelletizing is performed to obtain the foaming masterbatch. The foaming masterbatch has the advantages that the manufacturing cost is low, the foaming gas is safe and environmentally friendly, the foaming temperature is low, and the using range and the technological range are wide. The obtained foaming masterbatch is applied to the extrusion and injection molding processes of polyethylene, polypropylene, EVA resin and POE resin, and the obtained foaming masterbatch is safe, environmentally friendly, small in density, small in molding shrinkage and good in mechanical property.

The invention discloses a novel foam glass which is prepared from the following raw materials in parts by weight: 12 to 27 parts of blast furnace slag, 5 to 22 parts of silica raw material, 20 to 40 parts of modified waste glass, 10 to 25 ceramic polishing waste, 8 to 13 parts of calcite, 9 to 21 perlite, 1.3 to 2.8 parts of aluminum oxide, 2 to 4 parts of sodium carbonate, 3 to 12 parts of borax, 0.8 to 1.4 parts of manganese dioxide, 0.7 to 1.3 parts of ferric oxide, 0.05 to 0.16 part of sodium hexametaphosphate, 1 to 5 parts of refractory fiber, 0.9 to 1.7 parts of nano medical stone powder, 0.3 to 0.7 part of nano zinc oxide, 1.1 to 2.2 parts of acetylated di-sodium starch and 0.8 to 2.4 parts of calcium carbonate. According to the novel foam glass, the blast furnace slag, the silica raw material, the modified waste glass and the ceramic polishing waste are utilized as raw materials, waste is turned into wealth, raw material source is wide, and cost is reduced; meanwhile, the refractory fiber and the nano zinc dioxide are added to serve as additives, so that performance of the foam glass is effectively improved, and strength of the foam glass is improved.

A method for preparing a basalt porous heat-preserving material includes the steps that basalt, screen glass, calcium carbonate, silicon carbide, manganese oxide, magnesium carbonate and sodium silicate are ball-milled to obtain batch; then the batch is contained in a mould and heated, foamed, cooled and annealed to room temperature, and the basalt porous heat-preserving material is obtained. By means of the method, waste can be used easily, the environment is protected, the prepared high-strength porous material is low in foaming temperature, basalt directly serves as the main material, the preparation process is simple, and the prepared porous heat-preserving material is high in structural strength, low in water absorbing rate, small in density and low in heat conductive coefficient. Production cost of the foaming porous material can be effectively reduced, the environment is protected, waste is turned into wealth, and economic benefits and environment protection benefits are obvious.