45results about How to "Effective closed protection" patented technology

The invention discloses a preparation method of a high-water-resistance packaging paint coated film. The preparation method comprises the following steps: 1) adding toluene diisocyanate and the like into a first reaction kettle at room temperature to obtain a primary product; 2) adding dimethylolpropionic acid into the primary product to obtain an aromatic water-based polyurethane emulsion; 3) adding a silica sol and the aromatic water-based polyurethane emulsion into a third reaction kettle to obtain a mixed emulsion; 4) adding right amounts of acrylic acid copolymer potassium salt and the like into a distilled-water-containing fourth reaction kettle to obtain a mixed substrate; 5) adding the mixed emulsion into the mixed substrate to obtain a high-water-resistance packaging paint; 6) wiping and airing the plastic film, and diluting the high-water-resistance packaging paint for later use; and 7) spraying the high-water-resistance packaging paint onto the plastic film, and airing to obtain the high-water-resistance packaging paint coated film. The coated film is convenient for testing the tensile property, corrosion resistance, moisture permeability, peel strength and other properties of the paint.

The invention discloses a preparation method of a mixed emulsion type packaging protective film composition. The preparation method comprises the following processes: adding toluene diisocynate and the like into a first reaction kettle at the room temperature to obtain a primary product; (2) adding dimethylolpropionic acid into the primary product, and then adding triethylamine to prepare aromatic waterborne polyurethane emulsion; (3) adding silica sol and the aromatic waterborne polyurethane emulsion into a third reaction kettle at the room temperature to obtain mixed emulsion for later use; (4) adding right amount of acrylic copolymer potassium salt and the like into the mixed emulsion to obtain a crude product; (5) adding talcum powder into the crude product to obtain the mixed emulsion type packaging protective film composition. The mixed emulsion type packaging protective film composition prepared by the method has the advantages of being simple and convenient to operate and high in production efficiency, and can be used for effectively and temporarily sealing and protecting an object to be protected.

The invention discloses a preparation method of an aromatic polyurethane emulsion water-based paint. The preparation method comprises the following steps: 1) preparing an epoxy resin-butanone solution; drying raw materials; 2) adding toluene diisocyanate and the like into a first reaction kettle to obtain a primary product; 3) adding dimethylolpropionic acid into the primary product, and adding triethylamine to obtain an epoxy modified aromatic polyurethane emulsion; 4) adding a silica sol and the epoxy modified aromatic polyurethane emulsion into a third reaction kettle at room temperature to obtain a mixed emulsion for later use; 5) adding right amounts of acrylic acid copolymer potassium salt and the like into a distilled-water-containing fourth reaction kettle to obtain a mixed substrate; and 6) adding the mixed emulsion into the mixed substrate to obtain the aromatic polyurethane emulsion water-based paint. The paint disclosed by the invention has the advantages of excellent water resistance, higher stability, higher cohesive force, favorable peelability and higher coated film strength.

The invention discloses a preparation method of an environment-friendly packaging material. The preparation method comprises the following procedures: (1) adding toluene diisocynate and the like into a first reaction kettle at the room temperature, so as to obtain a primary product; (2) adding dimethylolpropionic acid and the like into the primary product, so as to obtain an acrylate modified aromatic waterborne polyurethane emulsion; (3) adding silica sol and the acrylate modified aromatic waterborne polyurethane emulsion into a third reaction kettle at the room temperature, so as to obtain a mixed emulsion; (4) adding a proper amount of acrylic copolymer sylvite and the like into a fourth reaction kettle containing distilled water, so as to obtain a mixed base solution; (5) adding the mixed emulsion into the mixed base solution, so as to obtain the environment-friendly packaging material; (6) carrying out wiping and air-drying on a plastic film, and diluting the environment-friendly packaging material; and (7) spraying the environment-friendly packaging material to the plastic film, so as to obtain an environment-friendly packaging material paint film. By utilizing the environment-friendly packaging material prepared by virtue of the preparation method, a to-be-protected object can be effectively closed and protected, and the pollution, corrosion and damage of the object are prevented.

The invention provides a skip bucket vertical shaft wellhead sealing maintenance platform. The skip bucket vertical shaft wellhead sealing maintenance platform comprises a main support, and further comprises two bottom sealing platforms, two middle sealing platforms and two top sealing platforms which are sequentially installed on the main support from bottom to top; and each bottom sealing platform comprises two bottom layer platform supports and two bottom layer sealing plates. According to the skip bucket vertical shaft wellhead sealing maintenance platform, a hydraulic oil cylinder can push a plurality of main platform sealing plates to oppositely move on a main platform track so that the four main platform sealing plates can be all pushed to the position above a wellhead, effective sealing protection is formed on the wellhead, foreign matters are prevented from entering the wellhead, an inner side sealing plate and an outer side sealing plate are moved to be close to a skip bucket, then positioning pins are used for fixing the inner side sealing plate and the outer side sealing plate so that a worker can stand on the inner side sealing plate and the outer side sealing plate to check and maintain the skip bucket, and the maintenance becomes simple and convenient.

The invention discloses a preparation method of the anti-corrosion coating. The preparation method comprises the following procedures: (1) adding toluene diisocynate and the like into a first reaction kettle at the room temperature, so as to obtain a primary product; (2) sequentially adding dimethylolpropionic acid and triethylamine into the primary product, so as to obtain an aromatic waterborne polyurethane emulsion; (3) adding silica sol and the aromatic waterborne polyurethane emulsion into a third reaction kettle at the room temperature, so as to obtain a mixed emulsion for later use; (4) adding a proper amount of acrylic copolymer sylvite and the like into a fourth reaction kettle containing distilled water, so as to obtain a mixed base solution; and (5) adding the mixed emulsion into the mixed base solution, so as to obtain the anti-corrosion coating. By utilizing the anti-corrosion coating by prepared by virtue of the preparation method, a protected object can be effectively closed and protected, and the pollution, corrosion and damage of the object are prevented. Meanwhile, the coating further has relatively high stability, relatively strong cohesion, good peelable property and relatively high film strength.

The invention discloses a shaping auxiliary device for module patch machining, and relates to the technical field of module machining. For the following the problem of poor working performance of an existing mold, the following scheme is put forward now; the shaping auxiliary device comprises a mold main body and an installation cavity formed in the mold main body, and the mold main body is provided with an air exhaust assembly for gas exhaust; and the mold main body is further provided with a sealing assembly used for sealing the mold main body, and a filtering assembly is arranged in the installation cavity. According to the shaping auxiliary device, gas suction and adsorption can be conducted on membrane materials on the mold, gaps between the membrane materials are reduced, product fluffiness is avoided, it is ensured that the sizes of mold sets are consistent, then the product quality is effectively improved, the gas suction range can be flexibly adjusted, dust and impurities sucked in the gas suction process can be filtered out, the working performance is high, and use is convenient.

The invention discloses a preparation method of a waterborne peelable protecting film composition. The preparation method comprises the following procedures: (1) preparing an epoxy resin-butanone solution; (2) adding isophorone diisocyanate and the like into a first reaction kettle at the room temperature, so as to obtain a primary product; (3) sequentially adding dimethylolpropionic acid and triethylamine into the primary product, so as to obtain an epoxy-modified aliphatic polyurethane emulsion; (4) adding silica sol and the aliphatic waterborne polyurethane emulsion into a third reaction kettle at the room temperature, so as to obtain a mixed emulsion; (5) adding a proper amount of acrylic copolymer sylvite and the like into a fourth reaction kettle containing distilled water, so as to obtain a mixed base solution; and (6) adding the mixed emulsion into the mixed base solution, so as to obtain the waterborne peelable protecting film composition. The protecting film composition prepared by virtue of the preparation method has excellent water tolerance, relatively strong cohesion, good peelable property and relatively high paint film strength.