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820results about How to "Has acid and alkali resistance" patented technology

3D (three dimensional) wood printing supply and preparation method thereof

The invention provides a 3D (three dimensional) wood printing supply which comprises components in percentage by mass as follows: 60%-90% of wood meal, 3%-15% of ABS (acrylonitrile butadiene styrene) plastics, 4%-15% of PLA (poly lactic acid), 2%-10% of PHA (polyhydroxyalkanoate), 1%-2% of PP (polypropylene) and 1%-2% of a compatilizer. The 3D wood printing supply has the characteristics such as water proofing, corrosion resistance, moisture resistance, freeness of worm damage, mildew and toxicity, acid and alkali resistance, environment protection and the like, the real flavor of wood is diffused; the wood printing supply is fused and deposited by a 3D printer at the temperature of 190-230 GDE C to form various different 3D models, the 3D models have the hand feel, the impression and the fragrance of natural wood and have an effect approaching to a solid wood effect and wood properties, and the printing supply can be nailed, drilled, planed, carved, adhered and painted as wood; and the comprehensive physical properties and chemical properties can be well improved and optimized, the performance requirement of the 3D printer can be effectively reduced, and accordingly, the printing supply is suitable for both high-end printers and low and medium-end 3D printers and has a wider application range.

Aqueous environment-friendly packaging steel drum paint and preparation method thereof

InactiveCN101735703AGood anti-corrosion decoration effectHigh hardnessAnti-corrosive paintsEpoxy resin coatingsEpoxyAcrylic resin
The invention relates to an aqueous environment-friendly packaging steel drum paint, which is prepared by mixing the following compositions in part by weight: 20 to 70 parts of aqueous solution of acrylic resin with a solid content of 30 to 80 percent and/or aqueous solution of epoxy resin with the solid content of 30 to 80 percent, 4 to 10 parts of aqueous solution of amino resin with the solid content of 60 to 98 percent, 1 to 5 parts of organic amine, 1 to 50 parts of filling materials with the granularity of more than 2,000 meshes, 0.5 to 10 parts of color paste, 0.2 to 2 parts of wetting levelling agent, 0.2 to 2 parts of thickening agent, 0.1 to 0.8 part of antifoaming agent, 1 to 5 parts of adhesive force accelerant, 0.2 to 5 parts of catalyst, 0 to 30 parts of alcohol diluting solvent and/or 0 to 5 parts of non-toxic ether diluting solvent, and 20 to 50 parts of deionized water. The aqueous environment-friendly packaging steel drum paint has the advantages of wide application range, high rigidity, good flexibility, strong adhesive force and good anti-scraping and anti-collision properties and environmental protection; and meanwhile, the invention discloses a preparation method for the aqueous environment-friendly packaging steel drum paint.

Ultrahigh temperature decomposition agent of straws and cattle manure, and preparation and application of decomposition agent

The invention discloses an ultrahigh temperature decomposition agent of straws and cattle manure, and a preparation and an application of the decomposition agent, and belongs to the field of decomposition agents. The decomposition agent is prepared by mixed fermentation and drying of the straw, the cattle manure and a complex decomposition inoculant, wherein the complex decomposition inoculant comprises 1-10 parts of thermophilic bacterium inoculant, 1-6 parts of bacillus licheniformis inoculant, 1-6 parts of aspergillus oryzae inoculant, 1-6 parts of lactobacillus plantarum inoculant, 1-6 parts of thermoactinomyces sacchari, and 1-6 parts of cold-proof brevibacterium inoculant. The decomposition agent, a composting method and the application of the decomposition agent solve the problems of slow temperature rise during composting and decomposition, low fermentation temperature, long fermentation time, incomplete decomposition, poor compost quality and the like in the fermentation of the existing complex inoculant, and the decomposition agent is quick in temperature rise during the composting and the decomposition, quick in heating-up, high in fermentation temperature, short in fermentation time, more thorough in decomposition and higher in quality.

Preparation method of non-ionic waterborne polyurethane-polyacrylate composite emulsion for leather finishing

The invention relates to a preparation method of non-ionic waterborne polyurethane-polyacrylate composite emulsion for leather finishing. The preparation method comprises the following steps: after low polymer dihydric alcohol, diisocyanate and a hydrophilia chain extender are stirred for reaction, cooling to indoor temperature and adding an acrylate monomer and a certain amount of a solvent for reducing viscosity; adding water for emulsification under the high-speed dispersion; then adding a micromolecule polyamine chain extender to conduct chain extension in water to obtain an acrylate monomer-polyurethane waterborne dispersing emulsion; then introducing nitrogen, heating, dropwise adding a water solution containing an initiator to trigger seeding emulsion polymerization, and continuously keeping warm to obtain the composite emulsion. The composite emulsion prepared by the invention has the advantages of low viscosity, good permeability, emulsion stability, freeze-thaw resistance, hydrolytic resistance, and excellent electrolyte resistance and acid-base resistance property, can be used for compounding with anion resin and further with cationic resin, has an excellent knurling setting property, and is particularly suitable for being used as a leather finishing agent.

Automatic spraying process for precision hardware and spraying control method

The invention discloses an automatic spraying process for precision hardware and a spraying control method. The method comprises the following steps of: setting a product automatic spraying production line, sensor equipment, a core component precision gear pump, a spraying control system and an electrostatic generator device; and arranging a bilateral docking sensor and a multi-line configuration embedded control system; and realizing automatic control of a spraying process by matching an electric lift. A tunnel mode is adopted on the production line, one or more processing procedures are performed in each stage respectively, and the spraying process of a plurality of layers is completed once to form a composite coating on the surface of a structural piece according to a sequence from inner oil spraying to surface light spraying of a specific spraying process. A plurality of randomly set wave bands are itemized by using the spraying control system, wherein the operation speed of each wave band can be adjusted properly according to a complex workpiece so that the control process of the workpiece comprises multi-position spraying, multi-process spraying and multi-angle (360 DEG) spraying. The invention also discloses a spraying control system for implementing the method.

Waterborne fluorocarbon texture coating and preparation method and application thereof

The invention discloses a waterborne fluorocarbon texture coating and a preparation method and application thereof. The coating comprises the following components in part by weight: 141 to 180 parts of fluorocarbon emulsion, 5 to 12 parts of film-forming aid, 5 to 6 parts of cosolvent, 80 to 100 parts of water, 1 to 2 parts of antifoaming agent, 3 to 6 parts of disinfectant, 1 to 3 parts of mildew preventive, 2 to 3 parts of pH regulator, 5 to 10 parts of thickening agent, 600 to 1,000 parts of color sand, and 0 to 89 parts of sheet. The preparation method comprises the following steps of: under the stirring at a high speed, adding the film-forming aid, the cosolvent, the antifoaming agent, the disinfectant, and the mildew preventive in turn, stirring at the high speed and reducing the stirring speed; adding the fluorocarbon emulsion, regulating the pH value, and regulating the viscosity by using the thickening agent to obtain pulp; stirring the pulp at a low speed, adding the color sand and sheet, and mixing to obtain the waterborne fluorocarbon texture coating. The waterborne fluorocarbon texture coating applied to a coated outer wall surface has good protection functions of water resistance, weather resistance, smudge resistance, and the like, and makes the wall surface have elegant, harmonious and serious aesthetic feeling.
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