51results about How to "Improved anti-mold and anti-corrosion effect" patented technology

The invention discloses a preparation method of a bamboo wood anti-mildew preservative: weighing 60-150 parts by weight of tetraethyl orthosilicate, sodium silicate solution or n-butyl titanate at room temperature, slowly dripping into 40-75 parts by weight Parts of absolute ethanol and 30-60 parts by weight of deionized water in the mixed solution, while the mixed solution is subjected to 40-80 ° C water bath, stirring; then add an appropriate amount of acid to adjust the pH to 3-4, after the reaction is carried out for 30-45min, that is A homogeneous sol is obtained; under the conditions of 40-80°C water bath and stirring of the sol, slowly add 3-12 parts by weight of an aqueous solution of a copper-containing compound into the sol, and then add 5-15 parts by weight of an aminosilane coupling agent as a guide The agent is fully stirred to make it react, and the bamboo wood anti-mildew preservative is prepared. The anti-mildew preservative for bamboo and wood prepared by the invention has excellent anti-loss performance, simple components, simple preparation method, relatively low production cost, friendly environment and little harm to human health.

The invention relates to a bio-enzyme wood and bamboo protective agent which is prepared from the following raw materials in parts by weight: 0.05-0.5 part of laccase with the activity of 0.5U / mg, 0.05-0.5 part of enzyme activator, 200-2000 parts of bactericide substrate and 8000-9800 parts of buffer solution with the concentration of 0.1mol / L and pH value of 4-6. A production method of the protective agent comprises the steps of mixing the rest three raw materials according to the proportion except the laccase, evenly stirring at the temperature of 25-30 DEG C, and feeding the laccase into the mixed solution before use; evenly stirring at the rotating speed of 200-1000r / min under the condition of 25-30 DEG C. When the bio-enzyme wood and bamboo protective agent is used, the wood, the bamboo and products of the wood and the bamboo can be treated in a way of spraying, coating, soaking, pressurizing or vacuum impregnation, and then reaction is carried out for 6-18 hours in the environment of 25-40 DEG C, so that the mould-proof and corrosion-resistant treatment for the wood and the bamboo can be completed. The bio-enzyme wood and bamboo protective agent is simple in production technology, low in cost, convenient to use, non-toxic, free from environment pollution, good in mould-proof and corrosion-resistant effects, high in flow-away resistance and degradability resistance, and lasting in effect.

The invention discloses a method for making a crab type aquatic livestock stripped specimen. The method comprises the following steps: separating the back shell of a crab from the abdomen of the crab, taking out internal organs and muscle step by step, and treating the emptied back shell and the abdomen in preservative liquid for 2 hours (injecting the preservative liquid into parts such as foot tips which are not easy to infiltrate by using an injector); after preservative treatment, filling appendages and the whole abdomen with cotton mixed with a preservative powder agent, recombining the back shell with the abdomen integrally according to an original outline, fixing with a rope, shaping, fixing the appendages with fine iron wires, and drying in air at a place with good air circulation; after air drying, sealing all joints of the shell by using white glue, and spraying a layer of varnish on the surface of the shell; and transferring the specimen into a special box, and vacuumizing or filling with nitrogen, thereby preserving the specimen for a long time. The method is good in specimen mold-proof and preservative effect and is worthy of promotion, popularization and application, and the specimen is natural in color after being fixed and can be applied to science popularization education and academic research, and can be also used as high-class artwork as original morphology, color and texture can be maintained for a long time.

The invention discloses a viscoelastic body anti-mildew and anticorrosion adhesive for buried pipelines, an adhesive tape and a preparation method thereof, and belongs to the technical field of pipeline anticorrosion. The viscoelastic body anti-mildew and anticorrosion adhesive is composed of the following components, by weight, 100-300 parts of a polymer viscous-elastic material, 1-10 parts of enhancing glue, 100-300 parts of a filling material, 1-10 parts of an antioxidant, 1-10 parts of a plasticizer, 1-5 parts of a mildew preventive and 0.1-0.5 part of a pigment. By adding the mildew preventive in the viscoelastic body anti-mildew and anticorrosion adhesive, erosion of mildew can effectively be prevented, and shear strength and volume resistivity of the adhesive layer can be enhanced by cooperation with other components in the formula. Thus, the adhesive's peel strength of a steel or PE material is raised, and mechanical property of the adhesive layer is improved. By the use of the adhesive, buried pipelines made of different materials can be glued well. The adhesive has a good effect of inhibiting common mildews such as aspergillus flavus, aspergillus niger, aspergillus sydowi, aspergillus terreus, aspergillus ustus, Penicilnum chysogenum, Cladosporium, cheatomium, trichoderma and the like.