59 results about "Foaming agent" patented technology

Hydrofluoroolefins and hydrochlorofluoroolefins contaminated with acid and/or iron compounds are purified and stabilized by contacting the haloolefin with a solid adsorbent such as alumina and then combining the purified haloolefin with one or more stabilizers such as an epoxide. The purified, stabilized haloolefins thus obtained are useful in a wide variety of end-use applications, including, for example, as refrigerants, propellants, foaming agents, fire suppression or extinguishing agents, and solvents.

Syntactic foams and thermal insulation as described containing epoxy resin, hollow microspheres, and dried sol-gel or fumed metal oxide for forming a thermal insulating layer on a substrate such as a pipeline. Methods for forming such thermal insulating layers are also described, which can include formulating with blowing agents for forming closed cells in the finished insulating foam.

The invention relates to a multi-purpose strippable acrylate adhesive microporous material and a preparation method of the material, in particular to an acrylate adhesive material and a preparation method of the material, and solves the problems of low shearing strength and stripping resistance of the existing acrylate adhesives. The adhesive microporous material is prepared from acrylate resin, foaming agent, foam stabilizer, thickener, plasticizer, cross-linking agent, isopropanol and filler. The preparation method comprises the following steps: (1) preparing raw materials of acrylate resin according to weight ratio; (2) adding each raw material component prepared in the step (1) in a reaction kettle under controlled dropping speed, and performing core-shell emulsion polymerization to obtain acrylate resin; and (3) sequentially adding acrylate resin and the rest of raw materials prepared in the step (2) in the reaction kettle, dispersing, drying, and transferring onto a substrate to obtain acrylate adhesive. The acrylate adhesive microporous material has the advantages of high shearing strength, and easy stripping, and is mainly applied to poster, wall sticker and adhesive on various decorative stickers.

The invention relates to a combined type anti-fatigue cushion and a production method thereof. Vesicants with different amounts are added into polyvinyl chloride powder to form the anti-fatigue cushion as a whole in a foaming way or the existing finished polyvinyl chloride products are planished into tablets and then wear layer sizing material is arranged on the tablet to form the anti-fatigue cushion in a foaming way. The anti-fatigue cushion of the invention comprises a bottom foaming layer and a wear layer which covers the bottom foaming layer. On the one hand, the hardness of the bottom foaming layer is less than that of the wear layer, thus obtaining more elasticity and effectively relieving feelings of fatigue when users stand on the cushion. On the other hand, the polyvinyl chloride material can be saved so as to reduce the production cost of the anti-fatigue cushion.

The invention provides an infrared stealth textile coating fabric which comprises a printing layer, a surface layer, a thermal-insulating layer, a bonding layer and a base cloth layer which are laminated sequentially, wherein the printing layer comprises one-component polyurethane A, a solvent A, a dilution A, infrared reflection color paste, white paste and a defoaming agent A; the surface layer comprises one-component polyurethane B, a solvent B, a dilution B, aluminum oxide or iron oxide, a defoaming agent B and a flatting agent B; the thermal-insulating layer comprises two-component polyurethane C, a solvent C, a dilution C, aluminum powder, a foaming agent, a cross-linking agent C and a cross-linking accelerator C; the base cloth layer is nylon or dacron. According to the fabric provided by the invention, defects of the prior art are overcome, the fabric has the softness of textiles, can prevent rain and corrosion, can be used both on sunny days and slushy days, and has stealth and warmth retention effects.

The invention relates to a screw bolt with isothermal oil for cooling the inner wall of the front section of an EPE/EPS single screw bolt foaming extruding machine, which belongs to the field of single screw bolt foaming extruding machines taking LDPE/GPPS as main raw materials according to the principle of physical foaming by injecting foaming agent to produce EPE/EPS sheets. The invention solves the technical problem that the prior EPE/EPS single screw bolt foaming extruding machine can not cool material sectionally, thereby influencing the quality of products. The invention adopts the technical scheme that the centers of the front section and the rear section of the screw bolt are provided with different oil returning channels; cooling oil is pumped into the bottom end of a central blind hole in the front section of the screw bolt after passing through a small oil inlet pipe to return through the inner wall of the central blind hole in the front section of the screw bolt and enters a passage between a small oil inlet pipe and a large return pipe in a central through hole in the rear section of the screw bolt after cooling the front section of the screw bolt; and because an air heat-insulating layer exists between the inner wall of the central through hole in the rear section of the screw bolt and the outer wall of the large return pipe, the cooling oil can not cool the rear section of the screw bolt. The invention can be widely applied to the field of processes requiring the material cooling sectionally.

The invention discloses a calcium carbonate compound type flame-retardant foaming agent. The technical scheme of the foaming agent is characterized in that the calcium carbonate compound type flame-retardant foaming agent comprises light calcium carbonate, attapulgite clay powder having an air purification function, hydrogen peroxide, magnesium hydrate, sodium alcohol ether sulphate, superfine polyving akohol powder, dimethicone and water. Calcium carbonate compound type flame retardant foaming agent paste ingredients are stirred into a paste, and then the ingredients of the calcium carbonate compound type flame-retardant foaming agent are stirred into a finished product of the calcium carbonate compound type flame-retardant foaming agent. After the calcium carbonate compound type flame retardant foaming agent is stirred with water at a high speed, porous foamed slurry is formed and can rapidly isolate an inflammable material from being contacted with air, and the purposes of inflaming retarding and extinguishment are achieved; a product produced with the calcium carbonate compound type flame-retardant foaming agent not only has the effects of inflaming retarding, heat preservation, thermal insulation and sound insulation, but also has the air purification function; and the calcium carbonate compound type flame-retardant foaming agent is suitable for producing inflaming retarding and fire-extinguishing products, lightweight boards, lightweight walls and noise reduction products.

The invention discloses a microcellular foaming and in-mold decoration composite molding device with composite foaming agents and a microcellular foaming and in-mold decoration composite molding method. The microcellular foaming and in-mold decoration composite molding device comprises an injection molding machine and a mold. The mold is connected with a discharge outlet of the injection molding machine; the injection molding machine comprises a barrel, a screw, heaters, a high-pressure gas cylinder and a hopper, the screw is arranged in the barrel, the heaters are arranged outside the barrel, the high-pressure gas cylinder and the hopper are connected with the barrel, the high-pressure gas cylinder is used for providing physical foaming agents into the barrel, and the hopper is used for providing mixtures of chemical foaming agents and polymers into the barrel; the mold comprises a male mold and a female mold, the male mold and the female mold are opposite to each other, and an in-mold decoration film clings onto the inner wall of the female mold. The microcellular foaming and in-mold decoration composite molding device and the microcellular foaming and in-mold decoration composite molding method have the advantages that the foaming efficiency of the polymers can be improved by the physical and chemical composite foaming agents, formed cells are good in distribution, and products are high in surface quality owing to the in-mold decoration film.

The invention provides graphene-based hierarchical pore capacitor carbon and a preparation method thereof. The preparation method comprises the following steps: water-soluble sugar and a graphenes substance are subjected to a hydro-thermal reaction, a cross-linking agent is added during a reaction process, an activator is added after the reaction is complete, and then the materials are subjected to a carbonization reaction to obtain the product. The cross-linking agent is a nitrogenous foaming agent, and the activator is selected from one or more of potassium hydroxide, sodium hydroxide, zinc chloride and phosphoric acid. According to the invention, stacking and agglomeration of the graphene can be inhibited with a larger degree, the specific surface area and amount of porosity are increased, and the specific surface area utilization rate and specific capacitance are increased.

The invention provides a foaming-ceramic heat insulating board. The foaming-ceramic heat insulating board is characterized by being prepared from, by weight, 25-30 parts of fusible clay, 6-12 parts of diatomaceous earth, 6-12 parts of alkalifeldspar, 5-10 parts of dolomite, 2-5 parts of starch, 6-12 parts of nano-scale silica fume, 6-12 parts of cement, 6-12 parts of lime, 1-2 parts of anionic surfactant, 0.5-3 parts of foaming agent, 1-4 parts of reinforcing elements, 0.1-0.5 part of triton X-100 and 100-190 parts of water; the reinforcing elements are titanium-system reinforcements or aluminum-system reinforcements or boron-system reinforcements or silicon-system reinforcements. The foaming-ceramic heat insulating board is low in heat conductivity coefficient, high in breaking strength, low in density and not prone to water permeation, and can be widely used for wall materials, heat insulating materials and underground engineering materials. As the triton X-100, the anionic surfactant and the starch are combined to be used, the porosity rate of the board is increased, and bubbles can be more evenly distributed.

The invention relates to novel magnesium oxysulfate cement-based fireproof coating. The fireproof coating is hysteretic in foaming after coating. The surface drying time of the fireproof coating is 80-360 minutes, the fire-resistant time of the fireproof coating is 120-160 minutes, the softening coefficient of the fireproof coating is 0.8-0.9, and the heat conductivity coefficient of the fireproofcoating is 0.08-0.20W/m<2>*K. The fireproof coating comprises, by weight, 30-60 parts of low-grade light calcined magnesium oxide powder, 10-30 parts of light aggregate, 15-30 parts of magnesium sulfate heptahydrate powder, 0.1-1 part of waterproof agent, 0.1-1 part of fiber, 0.1-10 parts of early strength agent, 1-5 parts of active metal foaming agent and the balance water. The novel magnesium oxysulfate cement-based fireproof coating has the advantages that the fireproof coating is low in heat conductivity coefficient, good in thermal stability, capable of preventing foam generated by physical and chemical foaming from breaking during spraying by using the hysteretic foaming technology and uniform in quality; the fireproof coating is good in corrosion resistance, high in safety performance, stable in quality, good in water resistance and high temperature resistance, good in ultraviolet resistance, long in service life and capable of satisfying safety fireproof requirements.

The present invention discloses a decomposable environmentally-friendly heat-insulation packaging bag which comprises the following parts by weight of raw material components: 20-40 parts of straw fiber, 10-15 parts of rice husk powder, 10-15 parts of acrylate-1 and 1-dichloroethylene copolymer, 1-2 parts of zinc gluconate, 1-2 parts of gelatin, 2-8 parts of aluminum hydroxide, 2-6 parts of potassium hydroxide, 13-15 parts of furfuryl alcohol resin, 2 5 parts of zinc oxide, 0.5-1 part of talc powder, 5-6 parts of wax, 1-3 parts of silica powder, 2-4 parts of tetrahydrofuran, 8-13 parts of polyethylene, 0.5-1 part of nano-organic montmorillonite, 2-6 parts of silicon oxide powder, 2-4 parts of a foaming agent and 2-4 parts of clay. The decomposable environmentally-friendly heat-insulation packaging bag takes the environmentally friendly materials, is green and environmentally-friendly, has heat-insulation effect, and is suitable for cooked food packaging.

The invention discloses a fireproof anti-abrasion rubber shoe sole material and a preparation method thereof. The prepared fireproof anti-abrasion rubber shoe sole material is composed of, by weight,acrylonitrile-butadiene- styrene copolymer, epichlorohydrin rubber, polyacrylate rubber, polyurethane rubber, PVDF resin, white mica, a silane coupling agent, absolute ethyl alcohol, nano zinc oxide,magnesium stearate, palm oil and a foaming agent. According to the fireproof anti-abrasion rubber shoe sole material, all the raw materials are promoted mutually, by modifying the white mica, the anti-abrasion performance of a fireproof anti-abrasion rubber shoe sole is further improved, and the prepared fireproof anti-abrasion rubber shoe sole material has prominent mechanical properties; the fireproof anti-abrasion rubber shoe sole material has high elasticity, prevents slipping, is resistant to abrasion and good in oxidation resistance, and meanwhile has the advantages of being superior infireproof performance, safe, environmentally friendly and comfortable to wear.

The invention discloses an environment-friendly composite alkaline foam cleaning agent and a preparation method thereof. The environment-friendly composite alkaline foam cleaning agent is prepared from water, sodium hydroxide, a foaming agent, a foam stabilizing agent, a dispersing agent, a chelating agent and alkylolamide. The foam cleaning agent has the advantages of being high in permeability,efficient, clean, easy to flush and the like, can form a large amount of rich and delicate foam in the use process, has long half-life and wall hanging time, can be attached to the surface of equipment for 25 min or longer, can rapidly infiltrate dirt to soften, loosen and emulsify the dirt, reduces adhesion of the dirt, can completely remove the dirt of the equipment and has lower cost.

The invention belongs to the field of foam gap fillers, and especially relates to an ultrahigh-foaming amount polyurethane foaming agent. The ultrahigh-foaming amount polyurethane foaming agent comprises, by mass, 10-70 parts of polyether polyol I, 40-60 parts of mixed polyether polyol II, 3-5 parts of a foam stabilizer, 30-80 parts of paraffin, 3-5 parts of polyether modified polysiloxane, 2-4 parts of a catalyst, 300-400 parts of isocyanate, 40-80 parts of methyl ether, and 30-60 parts of liquefied petroleum gas. A mono-component polyurethane foam gap filler keeps the foam hole size unchanged, makes the foaming amount increase by 58-70% and has a very substantial effect through adding assistants and adjusting the formula without changing the proportion of PAPI or increasing the weight of the above product.

The invention discloses a fireproof door core. The fireproof door core is prepared from, by weight, 7-12 parts of light calcined magnesia, 20-35 parts of expanded perlite, 15-23 parts of bentonite, 13-21 parts of desulphurization gypsum, 4-8 parts of chopped fiber, 1-2 parts of foaming agent, 11-16 parts of fly ash, 4-8 parts of lignin, 0.5-1 part of expansible graphite, 0.2-0.4 part of zinc borate, 2-7 parts of modifier and an appropriate amount of water. The fireproof door core has the advantages of being excellent in fireproof performance, good in heat preservation performance, environmentally friendly and small in volume, and not generating toxic and harmful gas under fire.

The invention aims to solve the conventional problems of lightweight refractory materials in the prior art, provides a method for preparing magnesia-based lightweight aggregates by a foaming method, and belongs to the technical field of refractory materials. The method comprises the steps: mixing oleate and an appropriate amount of water, stirring and foaming to obtain foams; adding calcium stearate into the foams to produce uniform and stable foams; adding water into magnesia powder, mixing evenly to obtain slurry, and then mixing the slurry with the foams to obtain foamed slurry; and pouringthe foamed slurry into a mold, molding, curing after molding, demolding, then drying, and then sintering a green body at high temperature. With oleate as a foaming agent, calcium stearate as a foaming stabilizer and magnesia powder as the slurry, the magnesia-based lightweight aggregates are prepared. The method can produce the lightweight aggregates with different pore sizes, and the lightweightaggregates have the advantages of high strength, high use temperature, strong corrosion resistance to reducing gas, and excellent corrosion resistance to alkali vapor, and are suitable for use in alkaline environments.

The invention discloses a heat-preservation sound-insulation magnesium oxysulfate fireproof material applied to a wallboard and a preparation method thereof, and mainly relates to the field of building wall materials. According to the technical scheme, the heat-preservation sound-insulation magnesium oxysulfate fireproof material is prepared from, by weight, 200 parts of magnesium oxide, 150-300 parts of a magnesium sulfate solution, 1-3 parts of a magnesium oxysulfate modifier, 0.1-0.7 part of polypropylene fibers, 10-70 parts of a fireproof adsorbing material, 4-16 parts of polystyrene particles, 30-100 parts of a foamed inorganic material, 10-70 parts of an active filler and 10-70 parts of foaming agent foam. The heat-preservation sound-insulation magnesium oxysulfate fireproof materialapplied to the wallboard and the preparation method thereof have the advantages that the polystyrene material is added into a magnesium oxysulfate cement material to achieve a heat preservation function, the foamed inorganic material and the foaming agent foam are added, the density of the a wallboard can be reduced when the heat-preservation sound-insulation magnesium oxysulfate fireproof material is used for preparing the wallboard, so that the wallboard generates a porous structure to achieve heat preservation and sound insulation effects, and the heat-preservation sound-insulation magnesium oxysulfate fireproof material also has the advantages of good fireproof performance, high strength, impermeability and moisture prevention of the magnesium oxysulfate cement material.

The invention discloses a preparation method of a waterborne polyurethane modified collagen-based concrete foaming agent. The concrete foaming agent comprises the following components in parts by weight: diisocyanate, polyether polyol, a hydrophilic chain extender, a micromolecule dihydric alcohol chain extender, a neutralizer, a hydrolyzed collagen liquid and gamma-glycidoxy propyl trimethoxy silane. According to the invention, chromium leather scraps wastes generated in a tanning process and alkali-process or acid-process hydrolysis products are used as raw materials, copolymerization modification is carried out with waterborne polyurethane, and excellent structural performance of the waterborne polyurethane is combined, so that the environment-friendly waterborne polyurethane modified collagen-based concrete foaming agent with excellent wettability, chelating property and surface activity is obtained, and defects of poor self foaming performance, poor foam stabilization performance,poor structural strength and the like of a collagen hydrolysate are effectively overcome.