40results about How to "Avoid natural oxidation" patented technology

The invention discloses a composite type nano flame-retardant coating comprising the following raw materials in parts by weight: 22-25 parts of titanium pigment, 10-25 parts of talc powder, 10-15 parts of calcium carbonate, 5-8 parts of mica powder, 5-8 parts of bentonite, 2-8 parts of kaolin, 7-11 parts of a thickening agent solution, 1.0-1.4 parts of a dispersant, 33-40 parts of polyacrylic ester emulsion of which the mass percent is 50%, 0.05-0.2 part of an anti-mildew agent, 0.05-0.2 part of a defoaming agent, 2.1-3.1 parts of propanediol, 1-3 parts of ethanediol, 7-11 parts of purified water, 0.02 part of an initiator, 0.6 part of a leveling agent, 25 parts of a modified ammonia type curing agent, and the balance of a nano flame-retardant composite.

A magnetization controlling element includes a ferromagnetic material layer, an exchange coupling adjustment layer, an antiferromagnetic material layer, an electrode layer, a magnetic field applying mechanism which applies a magnetic field to the antiferromagnetic material layer, and an electric field applying mechanism which applies an electric field to the antiferromagnetic material layer. The antiferromagnetic material layer contains an antiferromagnetic material or ferrimagnetic material having a magnetoelectric effect, the ferromagnetic material layer includes a perpendicular magnetization film having a magnetization component perpendicular to the film surface, the ferromagnetic material layer includes a ferromagnetic material layer that is magnetically connected, through exchange coupling, to the antiferromagnetic material layer. The exchange coupling adjustment layer has a function of adjusting exchange coupling between the ferromagnetic material layer and the antiferromagnetic material layer.

The invention relates to a nano-polypropylene flame retardant plastic which consists of the following components in parts by weight: 60-80 parts of polypropylene, 20-50 parts of polyethylene, 20-30 parts of terpene resin, 10-30 parts of polystyrene, 10-25 parts of nitrile rubber, 5-10 parts of dibutyl sebacate, 5-10 parts of polyimide, 10-20 parts of liquid paraffin, 10-15 parts of antimonous oxide, 10-30 parts of nano-titanium oxide, 10-22 parts of zinc stearate, 20-40 parts of a flame retardant, 0.1-0.3 part of an antioxidant, 0.5-1 part of a defoamer, 1-3 parts of an assistant and the like.

The invention discloses a polyurethane flame-retardant nano paint. The polyurethane flame-retardant nano paint comprises following raw materials, by weight, 10 to 20 parts of graphite, 5 to 15 parts of molybdenum disulfide, 5 to 10 parts of aluminium oxide, 2 to 6 parts of xylene, 2 to 6 parts of polyurethane modified epoxy resin, 2 to 6 parts of a curing agent, 12 to 15 parts of a bonding agent, 1 to 4 parts of an auxiliary agent, 15 to 20 parts of purified water, and the like.

The invention discloses a biological nano plastic, which is characterized in that the plastic comprises the following raw material components in parts by weight: 45-60 parts of plant fiber starch, 4-6 parts of glycerine, 40 parts of polyethylene, 20-40 parts of a polylactic acid, 60-80 parts of synthetic resin, 10-15 parts of additives, 5-8 parts of Pulullan, 2-4 parts of an antioxidant, 1-1.5 parts of an ultraviolet light absorber, and the like.

The invention discloses a biodegradable flame-retardant plastic film, which is prepared from the following raw materials in parts by weight: 85 parts of polyethylene, 20-30 parts of polylactic acid, 65-80 parts of a PBM degradable material, 10-15 parts of packing, 5-10 parts of pullulan, 2-4 parts of an antioxidant, 1-1.5 parts of an ultraviolet light absorber and 25-30 parts of nano flame-retardant composites. The oxygen-isolating biodegradable plastic film disclosed by the invention is prepared by blending extrusion and film blowing of mature modified starch biodegradable plastic master batches PBM and pullulan and film-grade LDPE in the market at present in the preparation method; good mechanical property of the film is ensured by using the characteristics of the LDPE; the environment friendliness of the film material is achieved by using the biodegradability of the PBM and the pullulan; the oxygen isolating property of the film material is improved by using high oxygen isolating property of the pullulan; the overall compatibility of the plastic film material is improved by using the structure similarity of the starch and the pullulan as carbohydrates; and regulation and control of the oxygen isolating property, the biodegradability and the like can be achieved by controlling the blending ratio of the LDPE/PBM/Pullulan system.

In a first embodiment, Tetraethyl Orthosilicate Si(OC2H5)4 is used at the process temperature of 650° C.±5° C. as film forming material, to decrease crystal defects occurring during deposition. In a second embodiment, annealing is carried out in sparse oxygen gas atmosphere after deposition, to mend crystal defects that occurred during deposition. In a third embodiment, initial temperature of the CVD device is kept at about 400° C., whereby the start of natural oxidation of the deposition surface is prevented and production circumstances of the semiconductor element is not deteriorated. Then, the CVD device is heated up to CVD temperature of about 750° C. or about 650° C., to deposit oxide.

The invention belongs to the field of machine manufacturing and particularly relates to a processing method for nano SSBR (Solution-polymerized Styrene Butadiene Rubber), wherein the SSBR is formed by processing a SSBR2305 base,SSBR321, new carbon black, adjuvants and a vulcanization system; the adjuvants comprise an antiager, an accelerant, a nano flame-retardant compound, nano-ZnO, A151 and Mg(OH)2; the SSBR2305 base and SSBR312 are blended, the adjuvants are added into the blended rubber and stirred for 35 min, 50 phr of new carbon black is added into the blended rubber and stirred uniformly, the blended rubber is added into the sulfur-free vulcanization system to be vulcanized for 50 min, and the temperature of the vulcanization system is 150 DEG C. The nano SSBR prepared by the method has the advantages of high production efficiency and high product percent of pass, excellent physical and mechanical properties, good low heat generation property and wide application prospect.

The invention relates to a high-temperature resistant nano film which comprises the following three parts in parts by weight: 40 parts of an outer layer, 20 parts of a middle layer and 40 parts of an inner layer. High-temperature resistant ingredients are added into both the inner layer and the outer layer, so that the finished product can resist to high temperature than like products. The invention further provides a production method of the film, which comprises the following steps: step 1, mixing; step 2, batching; step 3, film blowing. The film provided by the invention has the characteristics of high surface evenness, easiness for corona and compounding, high strength and high-temperature resistance and can be continuously produced by a film blowing machine in combination with batching equipment.

The invention relates to the technical field of plastic films, in particular to a preparation method of a plastic film. The plastic film comprises acrylic master batches, PBT master batches, an ASA antistatic agent, a light stabilizer, a plasticizer, a reinforcer, an ultraviolet light absorber and a nano flame-retardant complexing agent. The plastic film is prepared from the following components in parts by weight: 100 to 250 parts of the acrylic master batches, 100 to 250 parts of the PBT master batches, 50 to 80 parts of the ASA antistatic agent, 20 to 30 parts of the light stabilizer, 35 to 40 parts of the plasticizer, 15 to 20 parts of the reinforcer, 8 to 10 parts of the ultraviolet light absorber and 20 to 25 parts of the nano flame-retardant complexing agent. The method can effectively solve the problem that the existing plastic film is relatively poor in aesthetic property.

The invention discloses a cordyceps militaris culture method. According to the method, a proper culture medium and a proper culture condition are selected, and Cr<3+> of an inorganic state is converted into organic chromium through the enrichment effect of mycelia to Cr<3+>, so that the inorganic Cr<3+> is effectively prevented from being naturally oxidized to Cr<6+>, and the damage to human bodies caused by direct absorption of the metal Cr<3+> by the human bodies is reduced. The study also finds that the chromium in the cordyceps militaris also promotes the conversion of polysaccharide in the mycelia, and meanwhile, the pancreatic function of diabetic patients can be improved through the combined action of the organic chromium and cordyceps polysaccharide, so that the use of artificial insulin is reduced.

Disclosed is a method of forming a copper wire on a semiconductor device capable of preventing the natural oxidation of copper. The method comprises the steps of: forming an insulation film pattern having vias and trenches on a semiconductor substrate; forming a copper wire by filling up the vias and the trenches with copper; successively forming a capping layer and a protective layer on the copper wire and the insulation film pattern; exposing the copper wire by selectively removing the capping layer and the protective layer; and forming an oxidation-prevention layer on the copper wire. According to the present invention, the natural oxidation of copper is avoided by selectively depositing aluminum on a copper wire pad, and therefore a dependable evaluation is possible from tests of reliability in a high temperature. Furthermore, since aluminum has a lower contact resistance compared with copper, dependable test results are obtained during tests of electrical characteristics.

The invention discloses a production technique of a conductive nano flame-retardant rubber sheet, which comprises the following steps: A. proportioning: mixing 65 parts by mass of silicone rubber, 35 parts by mass of copper powder, 10 parts by mass of zinc oxide, 2 parts by mass of sulfur, 5 parts by mass of stearic acid, 2.5 parts by mass of anti-aging agent and 2.5 parts by mass of anti-scorching agent together to form a conductive rubber mixture, wherein the temperature of the conductive rubber mixture is controlled at 50-90 DEG C; B. cutting; C. calendering; D. stretching; E. coating; F. heating and cooling; and G. carrying out die cutting. According to the production technique, the multiple raw materials are subjected to cutting, calendering, stretching, coating, heating, cooling, die cutting and the like to form the conductive rubber sheet while controlling the thickness at 1-3mm, so that the die cutting efficiency is enhanced, and the defective rate of the finished product is lower; and the whole production technique has the advantages of high degree of automation, low labor intensity and high production efficiency.