42results about How to "Moderate roughness" patented technology

The invention relates to a mineral-fiber-filled high-strength environment-friendly rich mineral paper. The rich mineral paper is prepared by combining high-density polyethylene, linear low-density polyethylene resin, inorganic powder, non-metallic mineral fiber, a foaming agent, an antioxidant, a light stabilizer and additives as raw materials. The rich mineral paper comprises the following components in parts by weight: 10-15 parts of high-density polyethylene, 10-15 parts of linear low-density polyethylene resin, 65-75 parts of inorganic powder, 5 parts of non-metallic mineral fiber, 0.1-0.2 part of a foaming agent, 0.1-0.2 part of an antioxidant, 0.1-0.2 part of a light stabilizer and 0-2 parts of additives, wherein the total sum of the amount of the materials as the reference starting materials is 100 parts by weight. The preparation method comprises the steps of blending, mixing, granulating and molding. By virtue of the method disclosed by the invention, the dimensional stability, heat resistance, chemical resistance, flame resistance, electrical insulation and other properties of the rich mineral paper are improved. Due to the adoption of a three-layer co-extrusion process, the specific surface area is large, the specific weight is reduced, and the hardness, paper feeling, printing effect and ink absorption property are improved.

A process for producing a battery can in a transfer press comprises drawing a metal cup in a first station to form an elongated cylinder, ironing the elongated cylinder in a second station, and redrawing the elongated cylinder in a third station. In either or both the drawing and ironing steps, the cup or the elongated cylinder may be processed in more than one station. The process includes a final redraw station for redrawing the cylinder so as to roughen the inner surface of the battery can to improve its electrical properties.

The invention relates to a preparation method of a transparent super-hydrophobic zinc oxide coating on a glass substrate. The preparation method comprises the following steps of a, substrate pretreatment; b, zinc oxide solution preparation; c, zinc oxide coating preparation; and d, zinc oxide coating surface modification. Compared with the prior art, the preparation method has the beneficial effects of simple equipment process, low cost and mild reaction condition and is beneficial to large-scale industrial production. The transparent super-hydrophobic zinc oxide coating prepared by using the method has excellent hydrophobicity and transparency; the contact angle is larger than 160 degrees, the rolling angle is smaller than 8 degrees, and water drops can freely roll on the coating, so that the transparent super-hydrophobic zinc oxide coating has relatively good self-cleaning performance; and the light transmittance is approach to 90% which is close to that of blank glass, so that the transparent super-hydrophobic zinc oxide coating has favorable visible light transmittance. A surface modifier used in the preparation method is an alkyl silane coupling agent instead of a fluorinated compound, so that the cost is low, the environment pollution is relatively low, and the modified coating is relatively stable.

The invention relates to an acidic microetching solution used for the surface of copper or copper alloys, is characterized in that the solution contains poly-guanidine. The invention still relates to a method of treating the surface of copper or copper alloys and includes the following steps: firstly, the acidic microetching solution of the invention is used for contacting the surface of copper or copper alloys; and secondly, the surface is covered by an organic coating. Compared with the prior art, the invention has the advantages that the following requirements can be met at the same time, i.e. firstly, the copper surface is provided with a desirable roughness, which can provide enough adhesive power for the combination of the copper surface and the organic coating (a dry film for example); secondly, the treated copper surface is light-colored, friction-resistant and oxidation-resistant; thirdly, the copper surface does not need cleaning in advance, and the microetching and degreasing can be accomplished at the same time; and fourthly, the microetching amount can be as small as possible to meet the lamination requirement of the selective dry film.

A method for preparing a transparent Raman effect film relates to preparation of optical fiber films and aims to solve the problems of complicated equipment and difficulty in controlling a production process of an existing method for preparing SERS (surface enhanced Raman scattering) base materials. The method includes the steps: firstly, preparing cellulose acetate solution with acetone, acetic acid and cellulose acetate; secondly, uniformly mixing Ag NPs suspending liquid and the cellulose acetate solution to obtain spinning liquid; thirdly, spinning the spinning liquid into a nano-fiber nonwoven felt by means of electrostatic spinning process; and fourthly, tiling the cut nano-fiber nonwoven felt in a slot of a composite film forming tool, pouring polyvinyl alcohol water solution into the slot, leading the polyvinyl alcohol water solution to be lower than the upper edge of the slot of the composite film forming tool, and maintaining pressure and drying to obtain the transparent Raman effect film. The method is mainly used for preparing the transparent Raman effect film.

The invention provides self-roughened porous meshed super-hydrophobic polyester fabric and a preparation method thereof. Firstly, the fabric is soaked with an ethyl alcohol, then soaked with a polydimethylsiloxane/ polyvinyl chloride tetrahydrofuran mixture solution and dried for 2h at the temperature of 40 DEG C, and then the super-hydrophobic polyester fabric full of roughened porous meshed structure on the surface of fiber can be obtained. A static contact angle between the surface of the polyester fabric prepared with the method and a water drop is larger than 150 degrees, and the fabric has good super-hydrophobic performance, wear resistance, solvent resistance and stability.

The invention discloses a thermo-sensitive non-grain plate and a manufacturing method for the thermo-sensitive non-grain plate. The thermo-sensitive non-grain plate is formed by a support body, a hydrophilic layer and a thermo-sensitive layer, wherein the support body is coated with the hydrophilic layer and the thermo-sensitive layer in sequence. The surface of the support body is coated with nano-sized particles and/or micron-sized particles or combinations containing the nano-sized particles and/or the micron-sized particles, so that a hydrophilic coating is obtained and has proper roughness, and in this way the surface of a plate substrate has hydrophilicity and a water-retaining property. Due to the nano-sized and/ or the micron-sized hydrophilic particles in the hydrophilic layer, not only is the requirement for ink absorption satisfied, but also the abrasion resistance of the surface of the plate substrate is improved, and meanwhile the bonding force between the hydrophilic layer and the support body and the bonding force between the hydrophilic layer and the thermo-sensitive layer are both good. According to the thermo-sensitive non-grain plate, the manufacturing method for the thermo-sensitive non-grain plate and the application of the thermo-sensitive non-grain plate, an improvement is made to an existing thermo-sensitive plate, so that the performance of the existing thermo-sensitive plate is improved; moreover, the environmental pollution caused by acid and alkali waste liquid produced in the process of electrolyzing and oxidizing an aluminum plate by the existing thermo-sensitive plate is avoided, meanwhile, water consumption is saved by 70%, and power consumption is saved by about 50%.

The invention discloses a butt welding method for lengthening a steel wire, which is characterized by comprising the following steps: adopting a butt welding technology to weld tyre wires which are 1.5 mm thick and 10-20 m long together to obtain a tyre wire which is about 200 m long; and then rolling the tyre wire to form a steel wire scroll. The section of a steel wire segment is a cross section and the steel wire section is not easy to break so that the product can be effectively recycled repeatedly. Therefore, the invention is approved by the industry. In the consumption process, the invention has the smoothness of a steel shot and the characteristic of zero breakage of the steel wire section. Not only can rust on the surface of the product be effectively cleaned, but also residual consumption of equipment can be prevented. Meanwhile, the coarseness on the surface of the product is suitable for reducing the consumption of paint. As for a steel wire base body, the less the heat is, the smaller the temperature rise of materials out of the welding point is. Annealing and color changing conditions are avoided, and the quality of the steel wire section is ensured.

The invention relates to the technical field of metal surface treatment chemicals, in particular to a coarse micro-etching agent used in a circuit board and a preparation method of the coarse micro-etching agent. The coarse micro-etching agent is composed of, by weight, 5%-10% of sulfuric acid, 0.01%-0.1% of copper sulfate pentahydrate, 0.05%-1% of piperidine or 4-Cloperastine or 4-Hydroxypiperidine or 4-aminopiperidine, 0.1%-1% of 2-aminobenzimidazole or 2-mercapto benzimidazole or benzimidazole-2-methanal or 2-alkylbenzimidazole or 2-phenylbenzimidazole or 2-(4-pyridine) benzimidazole or 2-(4-benzyl) benzimidazole, 0.1%-1% of benzenesulfonic acid or p-chlorobenzenesulfonic acid or sulfanilic acid or p-methyl benzene sulfonic acid, 0.05%-1% of tetrazole or 5-amino-1H-tetrazole hydrate or 5-methyl tetrazole or 5-phenyl-tetrazole and the balance being deionized water. The coarse micro-etching agent used in the circuit board is stable in component, long in service life, capable of effectively removing oxides on the surface of metal and enabling the surface of the metal to be in proper coarse degree after micro-etching and especially suitable for increasing the binding force of a dry film and the copper surface in the process of pressing the dry film; in addition, through control over the coarse degree, the dry film is firm during pressing, and the exposed dry film can be removed more easily.

The invention discloses a magnetic polymer composite particle as well as a preparation method and application thereof, and relates to the technical field of composite materials. According to the technical scheme, the preparation method of the magnetic polymer composite particle is provided, and compared with the prior art, the method has the advantages that the method is environment-friendly, the production process is simple, and the magnetic polymer composite particles can be prepared by a one-pot method. The invention also provides a magnetic polymer composite particle. The particle size of the magnetic polymer composite particle is 50-250 [mu] m, and the magnetic polymer composite particle is formed by aggregating a plurality of small particles with the diameter of 1-10 [mu]m and has a macroporous structure. The invention also provides an application of the magnetic polymer composite particle. The magnetic polymer composite particle can be used as a carrier for microbial immobilization.

The invention discloses an emulsifying method of polyurethane micro-powder, a polyurethane micro-powder emulsion, a leather mending agent and application of the leather mending agent, and the emulsifying method comprises the following steps: mixing nonionic surfactants with different HLB values to obtain a compound emulsifier; adding the polyurethane micro-powder into the composite emulsifier to obtain a polyurethane micro-powder suspension; dropwise adding deionized water into the polyurethane micro-powder suspension; dropwise adding a curing agent into the polyurethane micro-powder suspension, adjusting the pH value of the system to 7.5-9, and stirring to obtain the polyurethane micro-powder emulsion; according to the invention, the problem that in the prior art, polyurethane micro-powder is difficult to form a stable body in a water phase or a solvent phase is solved; the technical problem that the application of the polyurethane micro-powder emulsion in leather finishing is limitedin the prior art is solved, the polyurethane micro-powder emulsion is formed and applied to the leather mending agent, the performance of the leather mending agent is improved, and meanwhile, if theleather mending agent containing the polyurethane micro-powder is applied to the grain surface of crust leather, the mending effect can be remarkably improved.

The invention discloses deodorization ceramsite and a preparation method thereof, and belongs to the technical field of waste gas treatment. The ceramsite comprises the following components: 10-20% of dry sludge, 20-30% of fly ash, 30-50% of bentonite, 10-20% of clay, 5-10% of a pore-forming agent and 5-10% of an alkaline substance. The preparation method comprises the following steps: firstly, uniformly mixing all the raw materials except the pore-forming agent, granulating, then uniformly mixing the raw material nodules subjected to primary granulation with the pore-forming agent and other raw materials again, granulating, and finally drying, preheating, roasting and cooling. The prepared ceramsite is rich in outer pores, growth of microorganisms is guaranteed, filler blockage caused by excessive breeding of the microorganisms can be avoided, meanwhile, the strength and corrosion resistance of the ceramsite can meet the use requirements of a deodorization filter tank, the ceramsite has an acidity buffering function, the odor removal effect is effectively guaranteed, the preparation process is simple, and the ceramsite is suitable for industrial production. The energy consumption is low, and the purpose of recycling resources is achieved.