32results about How to "Long-term anti-corrosion" patented technology

The invention relates to an environment-friendly flame-retardant non-adhesive fiberboard of crop straw and a preparation method thereof. The fiberboard is prepared by the following steps that 1 ) wheat straw and sorghum straw are taken to be cut off correspondingly, and the wheat straw and the sorghum straw are soaked in water to obtain a softened material; 2 ) steam explosion is correspondingly carried out on the softened material to obtain wheat straw fiber and sorghum straw fiber; 3 ) nano calcium carbonate, nano zinc oxide are mixed with nano copper oxide, and modifying is carried out toobtain a modified additive A; nano zinc borate, the nano zinc oxide are mixed with the nano copper oxide, and modifying is carried out to obtain a modified additive B; 4 ) the wheat straw fiber and the sorghum straw fiber are mixed with the modified additive A to obtain a core layer mixture; the wheat straw fiber is mixed with the modified additive B to obtain a surface layer mixture; and 5 ) thecore layer mixture is taken as a core layer, the surface layer mixture is taken as a surface layer to be laid and pre-pressed to obtain a slab, after hot-pressing forming and post-treatment are carried out, the environment-friendly flame-retardant non-adhesive fiberboard is obtained. The fiberboard has no formaldehyde release and has good mechanical property, good anti-water, moisture-proof, anti-corrosion and antibacterial properties; and good in fireproof and flame-retardant effects, and suitable for popularization and application.

The invention provides a spunlaced nonwoven. The spunlaced nonwoven includes a base layer, a water absorption layer and a functional layer which are arranged sequentially from top to bottom and in reinforced connection through spunlace; the base layer includes 61-71 parts by mass of first plant fiber and 29-39 parts by mass of fine denier synthetic fiber; the water absorption layer is a second plant fiber layer; the functional layer includes 65-75 parts by mass of third plant fiber and 25-35 parts by mass of fine denier synthetic fiber; the first plant fiber includes bamboo pulp and tea tree wood pulp; second plant fiber includes bamboo pulp and tea tree wood pulp; the third plant fiber includes bamboo pulp, tea tree wood pulp, fructus cnidii straw pulp and golden cypress pulp. The spunlaced nonwoven adopts a three-layer structure, and uses the plant fiber and the fine denier synthetic fiber, the dispersed ability and intensity of the spunlaced nonwoven are effectively balanced, and the unification of the dispersed ability and the intensity is achieved. According to different use characteristics, the three layers are set with different ratios, and the most beneficial use effect isachieved.

The invention belongs to the technical field of preparation of polyester powder coatings, and particularly relates to a long-acting weather-resistant chlorine salt corrosion-resistant polyester powdercoating and a preparation method thereof. The powder coating comprises the following main raw materials in parts by weight: 530-560 parts of polyester resin, 45-60 parts of TGIC, 10-15 parts of triglycidyl trimellitate, 120-180 parts of titanium dioxide, 80-120 parts of barium sulfate, 8-12 parts of a brightening agent and 7-10 parts of leveling agent. The polyester resin used in the powder coating is good in linear structure, and excellent flowing performance is guaranteed; more trifunctional curing agents TGIC are used in the powder coating and matched with triglycidyl trimellitate with a low melting point and excellent water resistance to jointly serve as a low-temperature curing agent, the crosslinking density and water resistance of a coating film are further improved, and finally long-acting weather resistance and chlorine salt corrosion resistance are guaranteed. The final powder coating product can be used for low-temperature curing at 160 DEG C, and the prepared coating filmhas excellent long-acting weather resistance and chlorine salt corrosion resistance, and is especially suitable for infrastructure spraying of expressways, such as guardrails and bridges.

The invention provides a high-temperature wear-resistant heavy-duty anticorrosion powder coating, and a preparation method and a coating method thereof. The high-temperature wear-resistant heavy-duty powder coating comprises, by mass, 50-65 parts of phenolic modified epoxy resin, 3-9 parts of a curing agent, 3-5 parts of an organic wear-resistant filler, 5-10 parts of an inorganic wear-resistant filler, 3-7 parts of a solid wear-resistant lubricant, 15-30 parts of a pigment filler, 0.2-0.5 part of a curing accelerator and 0.8-1.5 parts of a leveling agent. The components of the high-temperature wear-resistant powder coating are all commercially available materials, are simple and easy to obtain, and are low in cost; and the phenolic aldehyde modified epoxy resin with high strength, heat resistance and acid and alkali resistance is adopted as a main film-forming matter, the long-acting corrosion resistance can still be kept in the harsh H2S/CO2 corrosion environment, and a high-temperature wear-resistant anticorrosion coating layer can be obtained through the high-temperature wear-resistant heavy-duty anticorrosion powder coating.

The invention provides a top-down mounting and constructing method of a soft-steel energy-dissipation damper system. The top-down mounting and constructing method includes binding upper bracket wall ribs and mounting an upper bracket embedded plate in advance; erecting and reinforcing an upper bracket wall casting template and casting upper bracket wall concrete; demounting the upper bracket wall casting template after an upper bracket wall is formed; mounting a damper and welding a lower bracket embedded plate on a lower damper connecting plate; binding lower bracket wall ribs, and erecting and reinforcing a lower bracket wall casting template; opening the upper portion of the lower bracket wall, mounting a discharge hopper and casting lower bracket wall concrete; demounting the lower bracket wall casting template after the lower bracket wall is formed. The damper system is mounted from top to bottom, the lower bracket wall can be adjusted slightly after casting of the upper bracket wall, and the problem of failure in damper mounting due to error caused by construction quality is avoided.

The invention discloses an anti-corrosion paste. The anti-corrosion paste is prepared from the following components in percentage by weight: 35 to 80 percent of basic grease, 0.5 to 5 percent of high-permeability corrosion inhibitor, 0.5 to 20 percent of surfactant, 18 to 30 percent of thickening agent and 1 to 10 percent of plasticizer. The invention further discloses a preparation method of the anti-corrosion paste. The anti-corrosion paste is suitable for corrosion prevention of a concrete member in a water level change area, so that underwater construction is convenient, a water layer on the surface of concrete can be effectively replaced, pores on the surface of the concrete can be fully filled, the anti-corrosion paste has high crack followability, meanwhile, the permeable corrosion inhibitor can permeate into the concrete to effectively protect reinforcing steel bars, and the comprehensive anti-corrosion effect is excellent.

The invention relates to an anti-corrosion coating, and particularly relates to a graphene heavy anti-corrosion coating and preparation method thereof. The coating comprises a component A and a component B, wherein the component A includes, by weight, 10-15 parts of epoxy resin, 2-5 parts of polyurethane modified epoxy resin, 10-20 parts of a solvent, 0.05-0.5 parts of modified graphene, 45-65 parts of an anti-rust pigment, 5-10 parts of mica powder, 1-2 parts of titanium dioxide, 0.3-0.6 parts of a wetting dispersant, 0.03-0.06 parts of a defoamer, and 1-3 parts of organic bentonite; the component B includes, by weight, 55-70 parts of polyamide resin, 20-40 parts of a solvent, and 4-8 parts of an accelerant. Compared with the prior art, the graphene heavy anti-corrosion coating is prepared on the basis that the modified graphene is pre-dispersed in the solvent to make slurry, so that the graphene is fully dispersed and expanded in the coating to form a layered staggered structure. Thecoating has great shielding effect and is good in anti-corrosion effect.

The invention discloses an anti-corrosion aqueous paint and a preparation method thereof, which belong to a metal anti-corrosion paint. The method uses the itaconic acid as a raw material to obtain atransrust active agent, and the itaconic acid having a polyphenolic hydroxyl structure is used as a transrust reactant. The method takes phosphorus pentoxide and beta-hydroxyethyl acrylate having a bifunctional structure for a reaction to form corrosion-resistant phosphate and a passivation film, which has good adhesion, glossiness and unique anti-flashing function. The method adopts aniline and p-aniline as raw materials, so that the aqueous paint can prolong the anti-corrosion time of the coating film on the basis of anti-flashing of the formed film, so that the coating film can be long-lasting anticorrosive. In the present invention, methacrylic glyceride is added and an epoxy group is introduced, so that the density and water resistance of the coating film are improved. The method solves the problems that the current paint has poor flashing resistance and salt spray resistance, and a surface rust part cannot be transformed.

The invention provides a preparation method of traditional Chinese medicine. The preparation method comprises the following steps that 1, a traditional Chinese medicine extracting solution is prepared; 2, a corn enzymolysis liquid is prepared; 3, a soybean enzymolysis liquid is prepared; 4, a probiotics seed solution is prepared; 5, a material before fermentation is obtained, wherein the traditional Chinese medicine extracting solution, the corn enzymolysis liquid and the soybean enzymolysis liquid are uniformly mixed, sterilized and boiled for 30 min at 100 DEG C and then cooled to 28 DEG C to prepare the material before fermentation; 6, the probiotics seed solution is added into the material before fermentation for inoculation and fermentation for 8-12 h to prepare a fermentation liquor;7, the fermentation liquor is inactivated for 30 min at 100 DEG C, and the preparation of the traditional Chinese medicine is completed. The preparation method of the traditional Chinese medicine hasthe advantages that the preparation of the traditional Chinese medicine is rapidly completed under the catalysis of enzymes and in the conditions of the normal temperature/ normal pressure and appropriate ph value so that functional substances and nutrition ingredients in plant tissues can be fully and freely released, the raw materials of the traditional Chinese medicine are saved, the nutritionis rich, the taste is good, the absorptivity of the functional substances of the traditional Chinese medicine is high, and the long-term corrosion prevention can be achieved.

The invention provides an environment-friendly motor vehicle antifreezing solution. The environment-friendly motor vehicle antifreezing solution is prepared from the following raw materials in parts by mass: 60-70 parts of alcohols, 0.1-0.3 part of silicate, 0.1-0.2 part of calcium chloride, 0.1-0.3 part of potassium nitrate, 1-2 parts of benzotriazole, 0.1-0.2 part of urea, 0.1-0.3 part of borax,10-100 parts of water, 3-10 parts of sodium stannate, 5-18 parts of benzotriazole, 1-7 parts of polysorbate, 3-7 parts of isothiazolinone, 1-6 parts of lanolin, 1-5 parts of a defoamer, 1-5 parts ofa water-based wetting agent and 2-8 parts of a corrosion inhibitor. The environment-friendly motor vehicle antifreezing solution has great anti-freezing performance, and is stable in chemical property, capable of achieving long-term anti-corrosion, environmentally friendly, free of pollution and suitable for parts such as engines of motor vehicles such as automobiles and tractors or motor equipment.

The invention provides a graphene preservative and a corrosion control method for a mounting bracket. The graphene preservative can permeate into a honeycomb structure and form a dense protective filmon the surface of the honeycomb structure, and has good acid resistance, salt resistance and corrosion resistance. According to the corrosion control method for the passenger dedicated signal devicemounting bracket, first a zincizing corrosion resistance technology is adopted to form a honeycomb zinc-iron alloy layer on the surface of a workpiece, and the graphene preservative is sprayed in a pressure environment of 0.4-0.6 MPa. The graphene preservative undergoes multiple physical and chemical reactions, and a labyrinth effect is formed on the honeycomb zinc-iron alloy layer by overlappingdistribution, and the graphene preservative fills tissue gaps. A graphene coating is evenly distributed, the extremely low gas or liquid permeability of the coating can be maintained, and a corrosivemedium diffusion way is effectively blocked. At the same time, an anode material is added in the graphene, so that the coating has a self-healing function, and even if the graphene coating is partially damaged, the corrosion can also be effectively suppressed, thereby achieving long-term corrosion protection.