60results about How to "Reduce specific gravity" patented technology

The invention discloses a super-light plastic formula for sports shoe soles, and the formula comprises the following components in parts by weight: 59-69 parts by weight of ethylene-vinyl acetate copolymer, 11-21 parts by weight of polyolefin elastomer, 5-15 parts by weight of metallocene polyethylene, 5-15 parts by weight of acidic ethylene copolymer, 6-8 parts by weight of talc powder, 0.7-1.0 part by weight of zinc oxide, 0.5-0.8 part by weight of stearic acid, 0.6-1.0 part by weight of zinc stearate, 0.5-0.8 part by weight of flowable agent A, 0.3-0.6 part by weight of accelerated bridging agent, 0.25-0.5 part by weight of bridging agent and 4.8-5.4 parts by weight of foaming agent. Plastic soles of sports shoes produced by the technical scheme have super-light performance and the comfort which are unmatched by the ordinary plastic formula, have durable comfort, durable damping performance and other performances and can greatly reduce the consumption of physical strength of athletes.

The related preparation method for bipolar plate of proton exchange membrane fuel cell comprises: mixing 50-90vt% conductive ceramics and 10-50vt%graphite, hot pressing, and sintering. Wherein, the artificial graphite powder has purity over 97wt% and particle size less than 30 mum; while the conductive ceramics can be TiSiC, TiAlC, TiO2 or TiC every with purity over 95wt% and particle size less than 30 mum. This invention has well physical and chemical performances.

The invention discloses a polyether ether ketone composite used for a solid positioning head frame and a preparation method thereof. The polyether ether ketone composite comprises the components with the weight percentage as follows: 35-52 percent of inorganic filling, 3-5 percent of modifier, 25-35 percent of matrix resin and 20-25 percent of reinforcing fiber. The reinforcing fiber is arranged in epoxy acetone solution to be soaked, subjected to gamma ray irradiation treatment and is dried subsequently; the polyether ether ketone is arranged in oxygen, hydrogen or argon plasma atmosphere to be irradiated for 30 minutes and then is subjected to banburying with the modifier and the inorganic filling in proportion as above; a product and chopped carbon fiber are added into a double-screw extruder to be extruded and granulated; plastic granules are dried, injected and pressurized at constant temperature and then are molded into the solid positioning head frame. In the invention, the proportion for producing the raw materials is lightened and the performance of the polyether ether ketone composite in CT/MRI working environment is improved.

The invention discloses an oil-contained sewage treatment method and an eddy energy fast-cyclone separating system (Haynes) of special equipment for the method. Oil-contained sewage enters a multilevel cyclone speed three-phase mixer together with a prepared reagent and compressed air, the multilevel three-phase mixer makes the reagent be adequately contacted with the contaminants to form micro floc and makes the compressed air enter a releasing cavity after being adequately dissolved in the sewage, the dissolved gas in the floc is slowing released in the releasing cavity as the pressure is reduced, so the moisture inside the floc is squeezed out, the gas and solid floc form a porous hollow shape, the moisture content is remarkably reduced, the specific gravity is lighter, finally the floc after forming the scum enters a separating tank, the scum is scraped by a scraping machine above the separating tank, the scraped scum is discharged by a connected hopper to be subsequently dehydrated, the separated water overflows to a water outlet groove through a water outlet weir plate to be discharged through a water outlet pipe. According to the oil-contained sewage treatment method and the separating system, advantages of good treatment effect, reagent conservation, less sludge, less investment, simpleness in control, low maintenance expense and the like can be realized.

The invention provides optical glass and an optical element. The optical glass comprises following components by weight percent of oxides: 3-16% of SiO2, 2-15% of B2O3, 10-25% of sigma (SiO2 and B2O3), 38-55% of La2O3, 0-10% of Y2O3, 0-10% of Gd2O3, 45-65% of sigma (La2O3 and Y2O3 and Gd2O3), 3-15% of ZnO, 0-5% of Ta2O5, 4-10% of Nb2O5, 0-5% of TiO2, 2-10% of ZrO2, and 0-0.2% of Sb2O3, wherein SiO2 or B2O3 is greater than 1 and less than or equal to 2. The optical glass contains no oxides of alkali metal and alkaline-earth metal, such as Yb2O3, WO3, GeO2, TeO2, thorium, lead, arsenic, cadmium and mercury. The optical glass has the refractive index nd in 1.89-1.92, abbe number upsilon d in 36.5-39, specific gravity less than 5.10g/cm<3>, glass-transition temperature lower than 680DEG C, low devitrification tendency and high transmittance, the transmittance can reach over 70% in 390nm or shorter wave length, the devitrification temperature is lower than 1150DEG C, so that the optical glass is suitable for volume production and is mainly used in digital products, cameras, liquid crystal projection and the like. The optical element is made of the optical glass.

The invention relates to a calcium sulfate composite oxidant for fireworks and crackers and a preparation method thereof, belonging to the technical field of chemical raw materials of the industry of the fireworks and crackers. The oxidant takes calcium sulfate and iron oxide as a main body assisted by barium nitrate, takes potassium permanganate and potassium perchlorate as initiators, and is added a small amount of an active agent. The preparation method comprises the following steps: roasting gypsum (calcium sulfate dihydrate), smashing, adding a mixed powder body of potassium permanganate and potassium perchlorate, grinding, smashing iron oxide, adding the active agent into the iron oxide powder, and then adding barium nitrate and grinding; and uniformly mixing the two types of ground powder. One of main raw materials of the invention is calcium sulfate which is non-toxic and has low price, and after being roasted the calcium sulfate, the calcium sulfate is not only an oxidant but also a moisture-proof agent and a leavening agent and also is a mechanical sensitivity buffer which is fine and smooth and slippery. Since the composite oxidant of the invention is prepared into the fireworks and crackers according to the traditional method, the fireworks and crackers has the advantages that the burning property is good, the safety is strong, the friction sensitivity and impact sensitivity are zero, and the production cost is greatly reduced.

The invention relates to a high-refractive index and low-dispersion heavy lanthanum flint optical glass which is prepared from the following components in percentage by mass of oxides: 9.25-13.37 percent of B2O3, 5.48-7.34 percent of SiO2, 43.60-51.63 percent of La2O3, 3.53-9.12 percent of Y2O3, 4.18-10.23 percent of Gd2O3, 3.47-6.52 percent of Nb2O5, 3.47-6.62 percent of ZrO2, 0.81-1.50 percent of WO3, 3.96-6.95 percent of TiO2, 3.28-6.79 percent of ZnO and 0.61-1.52 percent of Al2O3; and in the composition, the following conditions are also met: B/Si is larger than 1.33 and smaller than 2.54 (by mass percentage), a sum of the mass percentages of La2O3, Y2O3 and Gd2O3 is 58.61-60.32 percent, and a sum of the mass percentages of WO3 and TiO2 is 4.85-8.34 percent. The optical glass does not contain Ta2O3 with high cost to facilitate reduction of the cost of the glass, does not contain alkali metals, alkaline-earth metals and toxic components including Pb, As and Cd either, has the refractive index nd being 1.883-1.915 and an abbe number vd being 35.65-38.32, is excellent in crystallization resistance and is suitable for batch production.

The invention discloses an active iron carbon catalyst for treating industrial wastewater. The active iron carbon catalyst is prepared from 40 wt%-60 wt% of iron-titanium alloy powder, 20 wt%-40 wt% of active fiber carbon powder, 5 wt%-10 wt% of bauxite, 3 wt%-5 wt% of Guangdong black clay, 3 wt%-5 wt% of Pingxiang white clay, 1 wt%-2 wt% of tin oxide powder and 2%-3% of a pore forming agent. The active iron carbon catalyst is roasted at the high temperature, iron and carbon are fused together, the inside of the catalyst is of a honeycomb netty-hole structure, the catalyst has the high specific area and gap rate, it can be effectively avoided that the catalyst is hardened and passivated, wastewater is rapidly sucked through honeycomb netty holes inside the catalyst, the reacting efficiency is improved, micro currents are formed through the iron-carbon electric potential difference generated through microelectrolysis to excite industrial wastewater, and new ecological hydrogen and oxygen are generated; through the reducibility and the oxidability of hydrogen and oxygen, wastewater is subjected to a strong oxidation-reduction reaction, and therefore hardly degradable substances are converted into easily degradable substances.

The present invention provides a reformed magnetic fluid (11) which achieves improved holding strength during magnetization by mixing, into a magnetic fluid (27) having a base liquid and ferromagnetic fine particles (25) present in a dispersed state in the base liquid, nonmagnetic powder (26) having a larger size than that of the ferromagnetic fine particle (25) and a smaller specific gravity than that of the ferromagnetic fine particle (25), and a gripping mechanism (10) and a gripping device (30) which use the reformed magnetic fluid (11).

The invention relates to a foaming nylon shoe material. The foaming nylon shoe material is prepared from raw materials as follows: EVA (ethylene vinyl acetate copolymer), POE (Polyolefin elastomer), nylon blend, calcium carbonate, a catalyst, a lubricant, a foaming agent, a bridging agent and a coupling agent, wherein the nylon blend comprises raw materials as follows: nylon, a dispersing agent, a tackifier, polypropylene and filler. According to the technical scheme, nylon is added to an EVA foaming system for joint foaming, strength of nylon is better than that of EVA, so that the whole shoe material can be subjected to higher-amplification foaming, and the proportion of the shoe material can be reduced; compared with the traditional EVA foaming system, the proportion can be reduced to 50%, the tensile strength can be increased by about 15%, and elasticity of the shoe material is guaranteed with addition of POE.

The invention discloses a glass bead modified Nano-Tio2 photocatalyst, application thereof to a formaldehyde removal magnesium oxide board and the formaldehyde removal magnesium oxide board. The photocatalyst is obtained by dispersing, dewatering and dying from a nanometer titania aqueous solution, a surfactant, a dispersant and glass beads in an appropriate ratio. By applying the photocatalyst to the preparation of formaldehyde removal magnesium oxide board, the magnesium oxide board obtained has the effect of enduringly purifying formaldehyde, and has the advantages of good thermo insulating property and good screw holding capability, without moisture absorption, active magnesia and buckling deformation.

The invention aims at disclosing a compressing double deoxidizer for steelmaking, which, by weight percentage, comprises 5-20% of Ca, 0-8% of Mg, 0-20% of Al, less than 0.03% of S, less than 0.02% of P, 2-10% of binder and balanced Mn. The invention further aims at disclosing a preparation method of the compressing double deoxidizer for the steelmaking, raw materials are added in the binder after mixed according to the proportion and evenly mixed, the mixed raw materials are put in a compression molding press with the pressure less than 20T for pressing, the stoving temperature is set to be 60-120 DEG C to dry a compressed double deoxidizer block for 15-60min, and a dried compressed double deoxidizer block is cooled and packaged to obtain the needed compressing double deoxidizer for the steelmaking.

The invention relates to a decorative material, in particular to an environment-friendly composite stone plate and manufacturing method of the environment-friendly composite stone plate. The environment-friendly composite stone plate is used for decorating wallboards or floors and comprises a composite substrate, wherein a printing layer is arranged on the surface of the composite stone plate and the composite stone plate is prepared from 98-99% of master batches and 1-2% of foamed master batches in mass percent by the steps of preparing the master batches, preparing the foamed master batches, blending, cold mixing, molding, cutting and printing. The environment-friendly composite stone plate has the advantages of corrosion resistance, water resistance, moisture resistance, heat insulation and sound insulation and the characteristics of good dimensional stability and small proportion.

The invention discloses an unfired clay tile and a production technology thereof. The clay tile comprises, by weight, 10-15 parts of natural colored sands, 10-15 parts of natural colored quartz sands, 3-5 parts of polyester resin, 2-5 parts of a shrinkage agent, 5-8 parts of alkali-free glass fibers, 0.5-1 part of zinc stearate, 1-2 parts of a skeleton reinforced material, 2-5 parts of light magnesium oxide and 0.02-0.05 part of an antioxidant. The production technology comprises the following steps: (1) mixing the polyester resin, polystyrene resin and zinc stearate according to the above formula, stirring the mixed raw materials, adding the natural colored sands, continuous stirring the mixed raw materials and the natural colored sands, adding the alkali-free glass fibers, the light magnesium oxide, the antioxidant and the natural colored quartz sands, and stirring all above raw materials; and (2 ) placing a product obtained in step (1) in a molding chamber, adding the skeleton reinforced material, and molding the product and the skeleton reinforced material to obtain the unfired clay tile. The unfired clay tile produced through the method has the advantages of high strength, high flexural and compressive strength, good toughness and light weight and is suitable for various roofings.

The invention relates to a caffeic acid composition which is characterized by comprising an A composition, a B composition, surface active agent, quick-effect disintegrant and lubricant; the A composition is caffeic acid and a medicinal accessory, and the B composition is a medicinal accessory; the weight ratio of the A composition and the B composition ranges from 1: 5.5 to 1: 1; and the caffeic acid accounts for 15 percent (W W) of the A composition at 10 DEG C. The standard of the caffeic acid composition is 0.95-0.105 weight part, wherein 0.1 weight part is the best. The caffeic acid composition and the preparation method thereof solves the problems concerning fast medicine disintegration and fast medicine effect and in particular greatly improves the bioavailability and the tablet stability of a caffeic acid tablet in the body.

The invention discloses a ceramic particle for water treatment and a preparation method thereof, belonging to the production field of water treatment filter material. The ceramic particle is made from granite powder, bentonite, coke powder, sawdust and pulverized coal in a certain proportion. Compared with the prior art, the ceramic particle has the characteristics of good water purifying effect, low production cost, little energy consumption, and so on, and can be widely applied to sewage treatment in various fields.

The invention relates to a foaming regeneration environment-friendly plastic sheet. The foaming regeneration environment-friendly plastic sheet comprises a PS base material layer and a foaming layer, wherein the PS base material layer comprises the following raw materials in percentage by weight: 75%-90% of PS, 5%-20% of PE and 1%-20% of a reinforcing agent; the foaming layer comprises the following raw materials in percentage by weight: 60%-70% of PS, 5%-20% of PE, 0.1%-20% of a foaming agent, 1%-10% of a reinforcing agent and 0.1%-8% of toner. A preparation method of the foaming regeneration environment-friendly plastic sheet comprises the following steps: (1) mixing the raw materials of the PS base material layer and the raw materials of the foaming layer in the ratio, and uniformly stirring; (2) feeding the raw materials into co-extrusion equipment through feeding equipment, extruding the PS base material layer and a foaming raw material layer, heating for forming in a double screw extruder, and simultaneously carrying out flow thermal compounding on the foaming layer and the PS base material layer at a joint of extruder screws to discharge sheets with uniform thickness, wherein the foaming raw material layer is foamed to obtain the foaming layer; and (3) drawing the PS base material layer and foaming layer composite sheets to a three-roller cooler for regulating flatness of the sheets, and trimming, forming and rolling through a tractor so as to obtain the finished product. The foaming regeneration environment-friendly plastic sheet provided by the invention has the advantages that the problem that the specific gravity of a traditional PS regeneration sheet is too large is solved, the cost is greatly reduced, and the environment pollution caused by plastics is alleviated.

The invention provides a low temperature firing light ceramic product and a production technology thereof. The low temperature firing light ceramic product is prepared from the following raw materials, in parts by weight: 20-40 parts of expanded vermiculite, 10-30 parts of sepiolite clay, 17-27 parts of fumed silica, 20-40 parts of potassium feldspar, 45-65 parts of black talc, 5-15 parts of nanometer barium carbonate, 10-15 parts of glass powder, 3-9 parts of nanometer aluminum oxide, 15-25 parts of water glass, 5-10 parts of burning zeolite, 5-25 parts of obsidian and 12-20 parts of nanometer boron nitride. The low temperature firing light ceramic product produced by adopting the raw materials and the technology provided by the invention is low in weight, low in hygroscopic property, fine and smooth in texture, and has the good abrasive resistance, high temperature resistance and heat stability.