766results about How to "Widely produced" patented technology

The application discloses a wear resistant polytetrafluoroethylene material and a preparation method thereof. The method comprises steps of: preparing polytetrafluoroethylene, aluminum oxide, bronze powder, silica, glass fiber, LCP, a coupling agent, graphite, molybdenum disulfide, GF, a flame retardant, UHMWPA, POM, PC and nano-titanium dioxide in parts by weight; mixing the substances; and extruding the mixture. For a product, the tensile strength is 27-32 MPa, and the breaking elongation is 300-320%; the Shore hardness is 60-80, and the abrasion amount is 0.001-0.005 mg; and the relative density is 2.6-2.8, and the wear width is 3.4-3.5 mm/h.

The invention relates to an LDPE (low-density polyethylene) fishing net filament, which comprises, by mass, 100 parts of LDPE; 0.3-0.5 part of UV-531; 0.3-0.5 part of DLTP; 0.3-0.5 part of zinc stearate; 0.5-1 part of barium stearate; 0.2-0.5 part of a light stabilizer; 10-15 parts of polybutadiene; 1-3 parts of carbon black; 5-10 parts of sodium hydrogen carbonate; 20-40 parts of butyl rubber; 20-40 parts of CPE; 2-3 parts of dibasic lead phosphite; and 25-45 parts of EVA. The product can tolerate a high temperature of 150-160DEG C and a low temperature of -30DEG C, has tensile strength of 10-20MPa, tensile elongation of 400-600%, and knot strength of 1.5-2MPa. Being light-fast and wear resistant, the product can be widely produced and be used for replacing existing materials continuously.

An enclosure for use in conjunction with a recessed ceiling fixture is provided which includes a substantially rectangular housing defining a top wall and side walls constructed from a single piece of fire-resistant gypsum wallboard. The housing is fastened to continuous stamped metal support flange depend inwardly from bottom edges of side walls of the housing to facilitate mounting of the housing between spaced apart building joists. The recessed fixture is mounted to the interior of the support flange after installation of the housing between the building joists.

The invention relates to an HDPE (high-density polyethylene) cable sheath material. The HDPE cable sheath material comprises the following components in parts by weight: 100 parts of HDPE, 0.1-5 parts of melt viscosity modifier, 0.01-2 parts of heat stabilizer, 0.01-10 parts of white oil, 1-80 parts of toughener, 0.01-10 parts of carbon black masterbatch, 0.01-10 parts of antioxidant and 0.01-10 parts of nucleating agent; the melt flow rate of a product is more than 10g/10min, which is greatly improved in comparison with the melt flow rate of 0.1-0.3g/10min of the existing cable sheath material; the elongation rate is 500%, which is greatly improved in comparison with the elongation rate of 23% of the existing HDPE; the tensile strength is 10-20MPa, and the density is 0.959-0.965g/cm<3>; the brittle temperature of the product is -70 DEG C, the volume resistivity is more than 2*1016 omega.cm, the breakdown strength is 20KV/mm, and the resistance to environmental stress cracking is not less than 50h; and the product has the advantages of good toughness, aging resistance and resistance to chemical corrosion, and can be widely produced and used for continuously replacing existing materials.

The invention discloses a circulated cooling water compounded scale inhibitor and a preparation method of the circulated cooling water compounded scale inhibitor. The circulated cooling water compounded scale inhibitor is prepared by weighing polyaspartic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyepoxysuccinic acid, amino trimethylene phosphonic acid, deionized water, sodium hexametaphosphate, a dispersing agent, polyhydric alcohol phosphate ester, organic polybasic phosphonic acid, acrylic acid-acrylic acid phosphonic hydroxypropyl acrylate and organic solvent according to a ratio in parts by weight. According to the circulated cooling water compounded scale inhibitor and the preparation method, disclosed by the invention, the content of phosphor in a water treatment agent is reduced, the generation rate of calcium phosphate scales is reduced, and the corrosion inhibition speed ranges from 0.001mm/a to 0.01mm/a; the scale inhibition rate is up to 98 to 100 percent; the expiration date is long, the circulated cooling water compounded scale inhibitor can be stored for one month under 60 to 70 DEG C, and the scale inhibition effect is up to 99 to 100 percent.

The application discloses medical an LDPE(low-density polyethylene) antibacterial plastic and a preparation method thereof. The method comprises the following steps: weighing materials in parts by weight: LDPE, magnesium hydroxide powder, sorbitol single zinc stearate ester, sodium aluminate, LLDPE(linear low density polyethylene), magnesium sulphate, a fire retardant, EVA(ethylene-vinyl acetate), chitosan, an antioxidant 2002, a coupling agent, polybutylene, styrene, zinc stearate and a UV-531(ultraviolet absorbent); uniformly mixing the materials, and then extruding the mixed materials to make grains so as to obtain the plastic. The longitudinal tensile strength of products is 10-30 MPa, and the lateral tensile strength is 5-25 MPa; the antibacterial rate to enterobacteria is 90-95%, and the antibacterial rate to golden staphylococcocci is 99.5-99.9%; the longitudinal elongation rate is 250-350%, and the lateral elongation rate is 300-500%; the transparency is 85-90%.

The invention discloses a waterproof packaging material and a preparing method thereof. The waterproof packaging material is prepared from PVC, plasticizer, lead stearate, butadiene-acrylonitrile rubber powder, EBSO, magnesium silicate, TDI, sulfur, zinc oxide and tribasic lead sulfate. The notch impact strength of the packaging material is 4-6 Kj/m<3>, the tensile strength is 40-60 MPa, and Brinell hardness is 20-24; tensile strength is lost by 0.05-0.25% after the packaging material is thermally aged for 2 months at the temperature of 80 DEG C, and tensile strength is lost by 0.001-0.02% after the packaging material is naturally aged for 2 months; according to combustibility, the packaging material is self-extinguished when away from a fire, and the tear strength is 36-40 kN/m. The raw materials are simple and easy to obtain, the preparing method is simple, and the elongation is 40-180%.

The invention relates to a polypropylene woven bag, which is composed of, by mass, 100 parts of PP(polypropylene); 15-20 parts of LDPE; 0.05-0.2 part of an antioxidant 1010; 1-5 parts of white oil; 1-5 parts of zinc white; 1-5 parts of PP-g-MAH; 0.1-0.5 part of an antioxidant DLTP; 0.2-1 part of zinc stearate; 5-10 parts of titanium dioxide; 0.05-0.25 part of DCP; 0.025-0.05 part of UV-327; 0.5-1 part of a coupling agent; and 10-20 parts of calcium carbonate. The product has tensile strength of 5-10MPa, elongation of 25-30%, fineness of 180-200, and has no change after 24h of soaking in strong alkali. The product is acid and alkali resistant and wear resistant, can be widely produced and used for replacing existing materials continuously.

The invention discloses a platinum electrode for a high-temperature high-pressure hydrothermal system and a preparation method of the platinum electrode. The platinum electrode is composed of a substrate (6), a circular truncated cone shaped high-temperature insulating mat (5), a high-temperature insulating taper sleeve (4), a circular truncated cone shaped high-temperature insulating ceramic (2), an inert metal sheet (1), a spongy inert metal layer (3) and an electrode lead wire (7), wherein one end of the substrate is provided with a taper hole and the other end of the substrate is provided with an axis through hole; the convergent end of the taper hole is provided with the circular truncated cone shaped high-temperature insulating mat, the divergent end of the taper hole is provided with the high-temperature insulating taper sleeve and the circular truncated cone shaped high-temperature insulating ceramic, the electrode lead wire and the spongy inert metal layer are arranged on the axis and the large circular surface of the circular truncated cone shaped high-temperature insulating ceramic, and the inert metal sheet is arranged between the circular truncated cone shaped high-temperature insulating mat and the circular truncated cone shaped high-temperature insulating ceramic. Compared with the existing various high-pressure hydrothermal platinum electrodes, the platinum electrode solves the difficult problems that the existing cold-sealing type platinum electrode at home and abroad has poor stability and reliability and the hot-sealing type platinum electrode cannot be used in a high-pressure hydrothermal environment at higher than 400 DEG C.

The invention discloses a PVC decorative plate. The PVC decorative plate comprises following ingredients, by mass, 100 parts of PVC, 5 to 8 parts of MBS, 1 to 3 parts of carbon black, 2 to 4 parts of DOP, 50 to 80 parts of active heavy calcium carbonate, 4 to 6 parts of CPE, 1 to 5 parts of epoxidized soybean oil, 5 to 7 parts of tribasic lead sulfate, 2 to 5 parts of dibasic lead phosphate, 4 to 6 parts of a modifier, 1 to 4 parts of paraffin, 2 to 3 parts of barium stearate, and 0.5 to 1 part of lead stearate. Product relative density ranges from 0.9 to 0.95, bending strength ranges from 55 to 65MPa, impact strength ranges from 380 to 400MPa, tensile strength ranges from 80 to 85MPa, oxygen index ranges from 30 to 35%. The PVC decorative plate is high in hardness, is antistatic, can be used for replacing existing materials continuously, and large-scaled production is realized.

A fatigue-resistant PVC insulated cable material comprises the following components, in parts by weight: 100 parts of PVC; 25-80 parts of a plasticizer; 3-15 parts of a thermal stabilizer; 0.1-2parts of a smooth agent; 5-80 parts of acetylene carbon black; 0.05-2 parts of bisphenol A; 0.1-2 parts of an antioxidant; and 1-10 parts of dibasic lead phthalate. The fatigue-resistant PVC insulated cable material has good fatigue resistance, and will not crack after repeated bending for 6-8 million times; and has Shore hardness of 91-95, and a wire resistant temperature of 110-120 DEG C; tensile strength of 25-35MPa, and elongation at break of 420-450%; a thermal deformation rate of 10-15%, a volume resistivity of 8*10<12> omega.cm, and dielectric strength of 25MV / m; and has antistatic, anti-aging and anti-chemical corrosion properties, and can be widely produced and replaces existing materials constantly.

An LLDPE (Linear low-density polyethylene) material for communication cable jackets is composed of the following components, in parts by weight: 100 parts of LLDPE, 10-25 parts of LDPE, 5-20 parts of PP, 0.01-2 parts of a thermal stabilizer, 1-20 parts of carbon black, 0. 1-10 parts of an antioxidant, and 0.1-10 parts of PE wax; has a product melt flow rate of greater than 2g/10min which is greatly improved compared with the product melt flow rate of 0.1-0.3g/10min in existing materials for cable jackets, an elongation rate of 850%, which is greatly improved compared with the elongation rate of 400% in existing LLDPE materials; and a tensile strength of 16-21MPa, and a density of 0.94-0.95g/cm3. The product does not fracture at -80 DEG C, has a volume resistivity of greater than 2*10<14> omega.cm, a dielectric strength of 28 -35KV/mm, and environmental stress crack resistance of greater than or equal to 30h; the product is flame retardant, anti-microbial, acid and alkaline resistant, and wear-resistant, and can be widely produced to replace existing materials

The invention is directed to a method for producing metal oxide particles, the method comprising subjecting non-oxide metal-containing particles to an oxidation step that converts the non-oxide metal-containing particles to said metal oxide particles. The invention is also directed to the resulting metal oxide compositions. In particular embodiments, non-oxide precursor particles are produced by microbial means, and the produced non-oxide precursor particles subjected to oxidation conditions under elevated temperature conditions (e.g., by a thermal pulse) to produce metal oxide particles or a metal oxide film.

The invention discloses a flame retardant HDPE cable material and a preparation method thereof. HDPE, CPE, antimony trioxide, red phosphorus, aluminum hydroxide, polyethylene wax, an antioxidant DLTP, carbon black, an antioxidant DNP, an antioxidant CA and a heat stabilizer are weighed according to a proportion by weight part. The product has tensile strength of 20-40MPa and elongation of 200-600%, is high temperature resistant to a temperature of 160-180DEG C, and has high strength, tensile yield strength of 25-45MPa, a melt flow index of 6-10g/10min, embrittlement performance of no crack at -70DEG C, and dielectric strength of 26-28MV/m. Also, the flame retardant HDPE cable material has the advantages of low cost, simple operation, and high dielectric strength and insulation performance.

The invention relates to a voltage stabilizing system, in particular to a boost chopping technology-based variable-frequency voltage stabilizing control system and a method, which belong to the electric automation field. The booster chopping technology-based variable-frequency voltage stabilizing control system mainly comprises a host computer, a program logic controller (PLC) 1, a variable-frequency system 2, a CC-LINK on-site bus 6, a remote monitor 5, a speed regulator 10 and a boost voltage frequency control conversion circuit; the PLC 1 is connected with the variable-frequency system 2 in a communication way through the CC-LINK on-site bus 6; the signal input end of the PLC 1 is respectively connected with an energy storage signal, an energy release signal and an alarming signal, and then the PLC 1 operates and processes the inputted data through a central processing unit CPU 13; and the output of the stabilized voltage of the system can be realized through a voltage/frequency (V/F) conversion circuit 24. The voltage stabilizing control system has good filter performance, a good energy-saving effect, good static performance and good dynamic performance, realizes the real-time monitoring, and improves the transmission accuracy and reliability of the control signal.

The invention discloses a PVC neutron shielding material and a preparation method thereof. The method comprises the following steps: weighing PVC, epoxidized soybean oil, calcium stearate, dibutyltin maleate, boron carbide, UV-9, barium stearate, magnesium stearate, diphenyl sulfone, MBS, a heat stabilizer, titanium dioxide, polypropylene glycol and a plasticizer, mixing the raw materials, and carrying out mixed refining, piece pulling, sized dicing, pressing and cooling off, wherein the product impact strength is 5 to 10 MPa, the oxygen index is 35%, the bending strength is 15 to 25 MPa, the tensile strength is 15 to 35 MPa, and the Vicat heat-resisting temperature is 60 to 70 DEG C. The PVC neutron shielding material and the preparation method can be used for wide production and unceasingly replacement of the conventional materials.

The invention discloses a polypropylene (PP) material for an automobile bumper. The PP material comprises the following components in parts by mass: 100 parts of PP, 10-50 parts of ABS, 5-20 parts of an impact-resistant modifier, 1-20 parts of a compatilizer, 1-20 parts of high-density polyethylene (HDPE), 1-30 parts of ethylene-propylene-diene monomer (EPDM), 5-40 parts of a lubricating agent, 1-10 parts of wollastonite and 1-50 parts of calcium carbonate. The melt index of the product is more than 10g/10 minutes; compared with the 0.1-0.25 g/10 minutes of the conventional material, the melt index of the product is greatly improved; the tensile strength is 28-38MPa, the bending strength is 40-50 MPa, and the elongation at break is 550-650 percent; the thermal deformation temperature is 125-130 DEG C, the product resists the temperature of 40 DEG C below zero, the notch impact strength of the product is 50-70 KJ/m<2>, the cantilever beam impact strength is 600-700L/m, and the cantilever beam impact strength at the temperature of 40 DEG C below zero is 70-80L/m; and moreover, the product is excellent in impact resistance, high in ageing resistance, high in chemical corrosion resistance and high in fire resistance, can be widely produced and can continuously replace the conventional materials.

The invention discloses a thermal storage warm-keeping fabric finishing agent, comprising the following components in parts by weight: 30-60 parts by weight of mixed nano powder of MoO3 and medical stone, 5-10 parts by weight of dispersant, 10-20 parts by weight of water-soluble acrylic resin and 30-50 parts by weight of water, wherein percents by weight of MoO3 nano powder and medical stone powder in the mixed nano powder of MoO3 and medical stone are respectively 50-70% and 30-50%, and average particle size of the mixed nano powder of MoO3 and medical stone is less than or equal to 15nm; and the dispersant is sodium phosphate aqueous solution with the mass percent concentration of 10%. The thermal storage warm-keeping fabric finishing agent disclosed by the invention has good thermal storage warm-keeping function and ultraviolet-resistant function, can be widely applied to various fabrics made from various chemical fibers, pure cotton and blends and can be used for making warm-keeping fabrics in various uses. Besides, the invention also discloses a preparation method of the thermal storage warm-keeping fabric finishing agent.

The invention discloses a polypropylene woven bag and a preparation method thereof. The polypropylene woven bag comprises the following raw materials: PP (polypropylene), an ultraviolet absorbent, calcium carbonate, zinc white, titanium dioxide, an antioxidant 1010, an antioxidant 168, an antioxidant DLTP, talcum powder and dioctyl bisphthalate. The polypropylene woven bag has the impact strength of 30-50 kJ/m<2> and the tensile strength of 35-55 MPa; the polypropylene woven bag is low in density, good in toughness, good in wear resistance and high in tensile strength, and has the bending strength of 1,850-2,250 MPa and the breaking force of 30-50 N; the polypropylene woven bag is good in heat resistance and good in flowability, the raw materials are simple and easily available, the preparation method is simple, and the polypropylene woven bag has the melting point of 130-170 DEG C and the elongation rate of 200-400%, can be widely produced and continuously replaces an existing material.

The present invention discloses a low temperature sintering temperature-stable microwave dielectric ceramic material and a preparation method thereof. According to the present invention, the formula comprises a base material and a sintering auxiliary agent, wherein the chemical composition expression formula of the base material is (1-x)Li2ZnTi3O8-xLi2TiO3, x is more than or equal to 0.3 and is less than or equal to 0.6, the sintering auxiliary agent is ZnO-B2O3-SiO2 glass powder, the amount of the sintering auxiliary agent is a% of the weight of the base material, and a is more than or equal to 0.50 and is less than or equal to 1.25; the ceramic preparation process sequentially comprises: respectively pre-synthesizing Li2ZnTi3O8 powder and Li2TiO3 powder in a calcination manner, preparing a base material according to the molar ratio of the composition formula (1-x)Li2ZnTi3O8-xLi2TiO3, adding ZnO-B2O3-SiO2 glass powder, and carrying out ball milling, molding, molding agent removing and sintering to obtain the product; and the product sintering temperature can be reduced to below 950 DEG C, the relative dielectric constant [epsilon]r can be adjusted within 22-26, the quality factor Qf is up to 33500-61200 GHz, and the resonant frequency temperature coefficient [tau]f is -7.0-8.0 ppm/DEG C and is close to zero, such that the product can become a new LTCC material so as to be widely produced and continuously replace the existing material.

The invention discloses a PVC master batch and a preparation method thereof. According to the preparation method, PVC, ESBO, DOP, ACR, paraffin, carbon black, lead stearate, barium stearate, cadmium stearate, PE wax, antimonous oxide and titanium dioxide are weighed in parts by weight, the product is high in strength, the tensile strength is 50MPa-90MPa, the tensile modulus is 3200MPa -3600MPa, and the Shore hardness is 60D-80D; the appearance of the product is uniform and glossy, the color intensity is 95%-115%, the impact strength is 15kJ/m<2>-35kJ/m<2>, the thermal deformation temperature is 120-140 DEG C, the bending strength of the product is 15MPa-55MPa, the bending modulus is 2GPa-4GPa, the elongation at break is 100%-140%, and the melt flow index is 7g/min-11g/min; and the cost is low, the operation is simple, and the PVC master batch can be widely applied to the production and can be used for continuously replacing existing materials.