128 results about "Zinc chelate" patented technology

Organosilicon compounds having organyloxy groups are prepared by reacting an organosilicon compound (A) having at least one silanol group with a compound (B) containing at least two organyloxy groups in the presence of a component (C) comprising a zinc chelate (C1) and at least one additive (C2) selected from the group consisting of compounds containing basic nitrogen (C21) and alcohols (C22). The products are useful in compositions which crosslink at room temperature.

The invention relates to a premix for improving the reproductive performance of fur animals, comprising trace element semi-finished product and a vitamin semi-finished product. The trace element semi-product is prepared from the following components: 10-40 parts of amino acid Fe-chelate, 10-50 parts of amino acid zinc chelate, 20-40 parts of amino acid manganese chelate, 5-20 parts of amino acid copper chelate, 1-8 parts of amino acid selenium chelate and 125-135 parts of zeolite powder; the vitamin semi-finished product is prepared from the following components: 2-8 parts of vitamin A, 1-4 parts of vitamin D, 15-35 parts of vitamin E, 30-70 parts of dihydropyridine, 10-20 parts of methionine and 100-125 parts of corn protein powder; and the two semi-products are uniformly mixed accordingto the ratio of 1: 1 to obtain the final product. The premix is applicable to a hybridization preparation period, a gestation period and a lactation period of foxes, minks and raccoons. By feeding the premix provided by the invention, reproductive performance of foxes, minks and raccoons, oestrus rate, conception rate, number born and survival rate of weaning cubs can be improved.

This invention provides a coating composition that can form a coating film having an eliminated or reduced photocatalytic action-derived deterioration and can form a coating film having a lowered haze value, has excellent dispersibility and dispersion stability in a coating liquid form, has excellent storage stability, and also has excellent coatability. The coating composition is characterized by comprising at least the following four components (1) to (4): (1) titanium dioxide fine particles with eliminated or reduced photocatalytic activity which is obtained by surface treating titanium dioxide fine particles doped with cobalt capable of capturing free electrons and / or holes, with a zinc chelate compound capable of capturing free electrons and / or holes, (2) a binder component, (3) a dispersant, and (4) an organic solvent.

The invention relates to a preparation method for a zinc chelated collagen peptide of tuna fishbone collagen. The preparation method specifically comprises the following steps: using tuna fishbone as a raw material; adopting an acid process to extract collagen; performing enzymolysis on the collagens with pepsin and trypsin; adopting ultrafiltration, macroporous resin column chromatography, gel column chromatography and reversed-phase high-performance liquid chromatography to separate and purify the collagens to obtain the zinc chelated collagen peptide Gly-Lys-Thr-Gly-Trp-Pro-Gly (GKTGWPG), wherein the molecular weight of the zinc chelated collagen peptide detected by ESI-MS is 701.73 Da. The zinc chelated collagen peptide is high in absorption and utilization due to the unique chelating and transport mechanism, and meanwhile capable of supplementing polypeptides / amino acid and zinc, so that the zinc chelated collagen peptide is an ideal zinc-supplementing substance.

The invention relates to an oyster protein peptide and zinc chelate and a method for preparing the same. The method comprises the following steps: pulping and grinding oyster meat, carrying out enzymolysis on the oyster meat by using flavor protease, and chelating the product of enzymolysis and Zn<2+> compound under a certain condition to obtain the oyster protein peptide and zinc chelate. The oyster protein peptide and zinc chelate can be used as zinc supplementing agent and gradually dissolved under the intestinal weak-alkalinity condition to gradually release Zn<2+>ions so that the absorption and utilization rates of the Zn<2+>ions are effectively improved. Due to the existence of bioactive peptide, the oyster protein peptide and zinc chelate has the physiological functions of resisting oxidation, regulating immune and lowering blood pressure. The preparation process of the oyster protein peptide and zinc chelate is safe and free from pollution. The by-products from processing of the oyster products can be used as raw materials, thus the demand on high-value usage of aquatic products can be met, and shellfish resources in coastal areas of China can be fully utilized, the healthy and sustainable development of aquaculture can be promoted, and important social and economic significances are achieved.

The invention provides a preparation method and application of soybean-source zinc chelating peptide and peptide-zinc chelate. Soybeans as a material are produced into soybean protein isolate by an extraction and separation process, the soybean protein isolate and protease carry out hydrolysis reaction, active peptide with small molecular weight is obtained by enzymolysis, the peptide reacts with zinc salt, and thereby the peptide-zinc chelate is prepared. By adopting the high-quality soybeans as the material, the high-quality soybean protein isolate is prepared by the invention through the extraction and separation process; the protein is put into an enzymatic vessel and added with an appropriate amount of water to prepare protein pulp, the pH value of the soybean protein pulp is regulated, the protease is then added for hydrolysis reaction, the reaction solution is put into boiled water and cooked for enzyme deactivation after hydrolysis is complete, and thereby hydrolysate is obtained; the hydrolysate is centrifuged, and after the supernate is dried, the crude powder of the zinc chelating peptide is obtained. The zinc chelating peptide prepared by the invention can be directly used as a natural antioxidant to delay aging. In addition, the zinc chelating peptide can also be used to prepare an excellent parent for the peptide-zinc chelate, and the peptide-zinc chelator can be chelated with different trace elements to prepare zinc supplements which are used for treating the nutrient element deficiency symptoms of the body.

The invention discloses a novel water-based rust inhibitor and a preparation method and a use method thereof, belonging to the technical field of metal material corrosion prevention. The rust inhibitor can substitute for antirust oil and grease to prevent rust in the inter-process of metal processing and store and prevent rust of finished products, and also can be used as antirust additive of metal working fluid such as metal cutting fluid, grinding fluid, washing agent and the like, so as to reduce the antirust cost in metal processing and storage and conveying processes. The rust inhibitor is obtained by adopting the following technical scheme: combining 5-15wt% of organic zinc chelate, 5-10wt% of amide-type surfactant and 1-5wt% of water-soluble antirust additive.

The present invention provides compositions and methods for cytoprotection. In particular, it provides zinc chelate compositions comprising at least one zinc ion and at least one aminothiol ligand.

The invention discloses a preparation method of nanometer collagen peptide zinc chelate of a marine organism source. The preparation method comprises the following steps: taking marine organism source collagen peptide (such as fishskin and scale hydrolyzed collagen peptide) as a raw material, preparing micromolecule collagen peptide with a high metal zinc chelating property by adopting an enzyme method, enabling the micromolecule collagen peptide and zinc salt to be subjected to a nometer chelation reaction to prepare the collagen peptide zinc chelate, wherein the collagen peptide zinc chelate is uniformly dispersed nanometer particles with the size being smaller than 1000nm, and has good water solubility. The preparation method has the advantages that the technology is simple and mild, special equipment or complicated treatment process is not needed, the cost is low, and a novel nanometer zinc supplementation preparation easy to absorb by the human body is provided.

The invention provides water soluble fertilizer capable of improving grape sweetness and an applying method. The water soluble fertilizer is composed of, by mass, 10-50 parts of urea, 10-300 parts of monopotassium phosphate, 10-700 parts of potassium nitrate, 1-10 parts of calcium chelate, 1-10 parts of magnesium chelate, 1-5 parts of manganese chelate,1-7 parts of zinc chelate, 1-10 parts of polyborate, 1-2 parts of sodium molybdate, 1-3 parts of chitosan oligosaccharide, 1-10 parts of potassium alginate, 1-5 parts of brown algae polysaccharides and 1-3 parts of gaseous phase silica anticaking agents. The water soluble fertilizer can substantially increase the sugar content of grapes, improve grape sweetness, increase the sugar-acid ratio and increase nutritive value and commodity value of the table grapes.

The invention discloses a method for producing a compound fertilizer from allantoin wastewater and belongs to the field of a wastewater processing technology. The method comprises the following steps: adjusting pH value of allantoin wastewater to 6.5-7.0 by using ammonia; and reacting by adding iron chelate, polymerized boron, zinc chelate and humic acid. Mass ratio of allantoin wastewater to iron chelate to polymerized boron to zinc chelate to humic acid is 1:0.04-0.05:0.02-0.025:0.015-0.02:0.01-0.015. According to the method provided by the invention, active ingredients in allantoin production wastewater are comprehensively utilized, and multiple nutritional ingredients such as iron, boron, zinc, humic acid and the like which are essential to plants are introduced to synthesize the multifunctional compound fertilizer. By the method, the prominent problem of environmental protection in production of allantoin can be solved, and production costs of allantoin can be reduced. Equipment requirements are low, and the method is simple to operate. The compound fertilizer obtained by the method has good fertilizer efficiency and has a certain effect of increasing yield and preventing disease and pest injury.

The invention relates to a feed additive for improving quality of furs of fur-bearing animals. The feed additive contains the following ingredients in parts by weight: 8 to 12 parts of linoleic acid, 8 to 12 parts of lecithin, 3.2 to 4.2 parts of vitamin complex, 5.8 to 6.2 parts of iron chelate, 4.1 to 4.2 parts of zinc chelate, 0.28 to 0.31 part of organic selenium, 18 to 22 parts of sea algae extracts, 17 to 19 parts of sulfur-containing amino acids, 9 to 11 parts of American yeast, and 17.3 to 17.9 parts of soybean meal. The feed additive has a scientific and reasonable formula and complete and balanced nutrition, is convenient for preparation and production, is excellent in baiting property, can effectively increase feed utilization efficiency and nutrient inversion rate, promotes growth and development of fur-bearing animals, improves quality of fur-bearing animals, improves quality of furs, and is a safe and reliable feed additive for improving quality of furs of fur-bearing animals.

The invention discloses a defatted soybean protein small peptide zinc chelate and a preparation method thereof. Most small peptides of the chelated zinc are dipeptides and tripeptides; the content ofthe small peptides with the molecular weight of 440 Da or below is 80 percent; the molecular weight of 100 percent of the small peptides is 1,000 Da or below; and the chelation rate of zinc is 98 percent or above. The preparation method comprises enzymolysis, chelation and drying. The preparation process disclosed by the invention is simple; the raw materials are low in cost and easy to obtain; the drying is performed by adopting a spray drying method, so that the production period is greatly shortened, and the time cost and the production cost are reduced; and the defatted soybean protein small peptide zinc chelate is suitable for large-scale production. Protein small peptides prepared by the preparation method are enzymolyzed by adopting compound protease, so that the enzymolysis is thorough; and the chelation rate of the prepared small peptide zinc chelate is more than or equal to 98 percent. When the defatted soybean protein small peptide zinc chelate prepared by the preparation method disclosed by the invention is used in an animal feed additive, the effect is obviously better than the effects of zinc sulfate and amino acid zinc chelate; and the defatted soybean protein smallpeptide zinc chelate is high in stability, high in absorption rate and high in utilization rate, and reduces pollution caused by animal metabolism to the environment.

The invention discloses a preparation method of a dictyophora indusiata polysaccharide-zinc chelate with antitumor activity. The method comprises the following steps of (1) extracting dictyophora indusiata polysaccharide; (2) separating the dictyophora indusiata polysaccharide; (3) purifying the dictyophora indusiata polysaccharide; (4) adding an inorganic zinc source in a dictyophora indusiata polysaccharide solution to carry out chelation reaction; (5) carrying out alcohol precipitation; and (6) carrying out freeze drying to obtain the dictyophora indusiata polysaccharide-zinc chelate. The dictyophora indusiata polysaccharide-zinc chelate researched by the invention is effectively applied to preparation of zinc supplementing health products and medicines; and proven by an MTT method, a flow cytometry method, a Hoechst33258 staining method and a DNALadder and JC-1 staining method, the chelate has remarkable antitumor bioactivity so as to be expected to become an efficient and low-toxicity drug for treating cancers particularly liver cancer.

The invention relates to a method for preparing a glycine zinc chelate. The method comprises steps of 1, preparing zinc salt solution, glycine water solution and sodium hydroxide water solution; 2, simultaneously dripping zinc salt solution and sodium hydroxide water solution into the glycine water solution, regulating the speed of dripping the sodium hydroxide water solution, controlling the pH value of a reaction solution to be 5-7, reacting so as to obtain white precipitate, ageing the white precipitate in the reaction solution for 8-15 hours; 3, carrying out suction filtering on the mixture formed by the white precipitate obtained in step 2 and the reaction solution at reduced pressure, and then drying the mixture, so as to obtain tabular white crystal. As the soluble zinc salt and glycine react in water solution, the method has characteristics of high reaction speed and high product purity. In addition, the method can be carried out at room temperature and has the advantage of low energy consumption. Moreover, the prepared glycine zinc has the platelike geometrical shape.

The invention relates to a method for making a mung bean protein peptide-zinc chelate. Mung bean protein is used as raw material; the raw material is hydrolyzed by alkaline protease to obtain mung bean polypeptide hydrolysate; and after polypeptide in the mung beanpeptide hydrolysate is freeze-dried, the mung bean polypeptide hydrolysate has a chelation reaction with zinc to obtain the mung bean protein peptide-zinc chelate. The method for making the mung bean protein peptide-zinc chelate, provided by the invention, has the advantages that by chelating the mung bean protein peptide and zinc ions and utilizing a characteristic that the mung bean protein small peptides are easily absorbed by intestinal tracts, the zinc absorption of the intestinal tracts and zinc accumulation in the body canbe promoted, the zinc absorption and utilization rate can be increased, and meanwhile, the zinc ions can be prevented from being lost due to precipitating in alkaline intestinal environment, and thezinc ion dissolving rate and the dialysance of the mung bean protein peptide-zinc chelate after being digested in the stomach and intestine are both higher than those of zinc heptahydrate.

The invention discloses a special spray-irrigation and drip-irrigation UAN liquid fertilizer for crops. The special spray-irrigation and drip-irrigation UAN liquid fertilizer is prepared from a urea-ammonium nitrate solution, industrial monoammonium phosphorate, potassium nitrate, potassium dihydrogen phosphate, EDTA manganese chelate, EDTA zinc chelate, borax, ammonium heptamolybdate, potassium fulvate, seaweed extract and water. The fertilizer has the advantages of a low price, comprehensive nutrients and a high utilization rate.

The invention provides water-based metallic paint with a rustproof function for outer wall painting. The water-based metallic paint comprises the following components in parts by weight: 40-60% of silicone resin emulsion, 1-2% of film-forming agent, 10-20% of pearl pigment, 0.5-1% of flash-rust inhibitor, 0.3-0.6% of dispersant, 0.2-0.4% of wetting agent, 0.2-0.5% of defoaming agent, 0.3-1.0% of thickener, 0-5% of extinction powder and 25-35% of deionized water, wherein the silicone resin emulsion is water dilution type pure silicone resin emulsion, and the flash-rust inhibitor is modified zinc chelate. The water-based metallic paint provided by the invention has the advantages that the pure silicone resin emulsion is used as a film-forming agent, and meanwhile, the modified zinc chelate is added to the metallic paint and serves as the flash-rust inhibitor, so that a paint film has a good rustproof property, good stain resistance weather resistance and a very good decoration effect on outer walls and prolongs the service life of the walls relatively well. The invention aslo provides a preparation method with the rustproof function for the outer walls.

The invention discloses a selenium-containing microelement leaf fertilizer of a sweet potato, which comprises the following components: 16-18 parts of fulvic acid potassium, 7.5-8 parts of magnesium sulfate heptahydrate, 7-7.5 parts of zinc chelate, 9-11 parts of manganese sulfate tetrahydrate, 6.5-7 parts of ammonium molybdate tetrahydrate, 4.5-5.5 parts of copper sulfate pentahydrate, 12-14 parts of iron chelate, 8.5-9 parts of sodium selenite and 24-26 parts of monopotassium phosphate. During a swelling period of a root tuber of the sweet potato, when the selenium-containing microelement leaf fertilizer of the sweet potato is sprayed to a leaf, the dosage of the selenium-containing microelement leaf fertilizer of the sweet potato per 667m<2> land is 80g plus 30L water; and when the selenium-containing microelement leaf fertilizer of the sweet potato is sprayed for the second time by the same method after 15 days, the total dosage of the selenium-containing microelement leaf fertilizer of the sweet potato per 667m<2> land is 160g. The leaf fertilizer is rich in selenium microelement, so that after the leaf fertilizer is sprayed to the leaf of the sweet potato, the sweet potato is rich in selenium microelement.

The present invention relates to food, health product and medicine, and especially oyster zinc replenisher comprising effective components of oyster powder and zinc citrate and supplementary material. Oyster has high content of zinc chelated in protein and nucleotide and easy to absorb safely, so that oyster possesses outstanding zinc deficiency improving effect. Oyster also contains rich taurine essential for nerve cell. Zinc citrate has the advantages of easy absorption and high bioavailability, and the absorbed zinc ion can antagonize harmful Pb, Cd and other heavy metals.

The invention discloses a method of using methionine mother liquid containing potassium carbonate or potassium hydrogen carbonate to prepare methionine zinc chelate. The method includes following steps: concentrating methionine crystallization mother liquid to increase content of total methionine (containing methionine dipeptide) of a system to 8-15wt%, and promoting potassium hydrogen carbonate to be converted into potassium carbonate; transferring concentrated mother liquid for bipolar film electrodialysis for further acidifying and recycling potassium ions, desalting until a molar ratio ofmethionine to potassium ions in acid chamber mother liquid is 1:0.8-1.1, adding zinc salt of 0.5 molar total methionine equivalent weight, allowing reaction at 70-90 DEG C for 70-90min, cooling, crystallizing, separating, and drying to the methionine zinc chelate. The method is simple, practical and high in methionine and potassium ion recycling rate; physical property that the methionine zinc chelate is insoluble in water is utilized to realize separation of methionine from water-soluble impurities in the mother liquid, and the methionine zinc chelate which is a feed-grade trace element nutritional agent having high economic value.

The invention relates to a pig feed additive containing Chinese herbal medicines, and belongs to the field of feed additives. The feed additive is prepared from the following raw materials: a Chinese herbal medicine preparation, a Cacumen biotae extractive, Cacumen biotae, clostridium butyricum, bacillus subtilis, threonine zinc chelate, glycine copper chelate, fermented pomace, vital gluten and carriers such as wheat bran and medical stone. Through scientific proportioning and perfect preparation technology, the product is applied into pig daily ration, so that the growth performance in the young pig period can be improved, the pork quality of pigs in the growth and fattening period is improved, and the reproductive performance of sows can be further improved; and meanwhile, the application of partial antibiotics can be replaced, so that the culture benefit of pigs is improved, and the feed additive can be widely applied. The raw materials used in the product are green and safe raw materials, and the feed additive is a green feed additive.

The invention discloses a preparation method and application of a marine polypeptide-zinc chelate. Firstly, the protein in marine animals and plants and their leftovers is extracted by alkali-dissolving acid precipitation method, or the marine animals and plants and their leftovers are crushed, After refining, add protease to the obtained protein or slurry for enzymolysis, inactivate the enzyme, and prepare a marine polypeptide complex solution; then use inorganic zinc acetate solution or zinc sulfate solution to chelate with marine polypeptide to obtain marine polypeptide-zinc chelation The obtained marine polypeptide-zinc chelate can be further prepared into snack food, nutraceutical or medicine. The preparation process of the present invention is simple; the prepared marine polypeptide-zinc chelate and its products have a unique chelation system and transport mechanism, are safe, non-toxic, easy to be absorbed, and can supplement amino acids and zinc at the same time, and will surely become a zinc supplement It provides a new idea for the application of marine animals and plants and their leftovers.

The invention relates to a preparation method of edible and medicinal fungi protein peptide-zinc chelate. The preparation method comprises the following steps: extracting proteins from edible and medicinal fungus by an alkali-soluble acid precipitation method or an ammonium sulfate precipitation method; performing restricted enzymatic hydrolysis on the edible and medicinal fungi proteins by alkaline proteases, neutral proteases or compound proteases, so that an enzymatic hydrolysate of the edible and medicinal fungi proteins is prepared; and chelating zinc in inorganic zinc acetate or zinc sulfate with the edible and medicinal fungi protein peptide, so that the edible and medicinal fungi protein peptide-zinc chelate is prepared. The alkali-soluble acid precipitation method or the ammonium sulfate precipitation method utilized in the method is capable of obviously improving extraction rates of the edible fungi proteins; and the time of the enzymatic hydrolysis is controlled so as to effectively control degradation degrees of the proteins. A preparation technology of the polypeptide-zinc chelate is simple. The zinc-peptide chelate prepared by the preparation metahod is unique in chelate system and transport mechanism, and is easy to absorb, safe, non-toxic and low in cost; the zinc-peptide chelate is capable of supplementing amino acids and zinc at the same time, so that the zinc-peptide chelate will become the first choice among zinc supplements. The preparation method of edible and medicinal fungi protein peptide-zinc chelate provides a new idea to edible fungi applications.

The invention discloses a preparation method for a whitmania pigra Whitman polypeptide zinc chelate possessing antibacterial activity. The method comprises the following main steps: (1) degreasing whitmania pigra Whitman tissue; (2) performing enzymolysis on whitmania pigra Whitman protein; (3) separating whitmania pigra Whitman polypeptide; (4) performing chelation reaction on whitmania pigra Whitman polypeptide subjected to enzymolysis and zinc sulfate heptahydrate; and (5) performing alcohol precipitation separating and washing on the chelation reaction product. The prepared whitmania pigra Whitman polypeptide zinc chelate possesses relatively high yield and chelation rate, and oxford-cup-method bacteriostasis detection test proves that the whitmania pigra Whitman polypeptide zinc chelate possesses obvious antibiosis biological activity on escherichia coli and bacillus subtilis, and possesses great application prospect in the field of food and medicines.

The invention relates to a method for preparing a zinc chelated peptide by utilizing shrimp meat offal. The preparation method particularly comprises the following steps: adopting the shrimp meat offal as a raw material, and extracting collagen according to an acid process; conducting enzymolysis on the collagen by utilizing pepsase and trypsin; carrying out ultrafiltration, macroporous resin column chromatography, gel column chromatography, and reversed-phase high performance liquid chromatograph separation and purification to obtain the zinc chelated collagen peptide. The zinc chelated collagen peptide has a unique chelated and operating mechanism, thereby being high in absorption and availability; meanwhile, the zinc chelated collagen peptide can be utilized for supplementing both polypeptides / amino acid and zinc, thereby being an ideal zinc-supplementing substance.

The invention discloses a humic acid water-soluble fertilizer special for beans and a preparation method and application method thereof. The humic acid water-soluble fertilizer special for beans is made from, by weight, 12-18 parts of humic acid, 18-24 parts of diammonium phosphate, 12-16 parts of urea, 6-10 parts of monopotassium phosphate, 3-6 parts of calcium sulfate, 2-3 parts of boron sulfate, 2-3 parts of EDTA (ethylene diamine tetraacetic acid) zinc chelate, 2-3 parts of EDTA iron chelate, and 1-3 parts of gibberellin. The humic acid water-soluble fertilizer special for beans has the advantages that macro elements and trace elements are reasonably matched according to the fertilizer demand law of beans for growth and development; humic acid provides good effect on improving soil, maintaining soil health and the like; nutrition condition of soil is comprehensively considered; utilization rate of the fertilizer can be increased, nutrition can be absorbed faster, and the quality ofbeans is improved.

The invention discloses chemical fertilizer specially used for kiwi fruit and a preparation method of the chemical fertilizer. The chemical fertilizer specially used for the kiwi fruit is prepared from the following components in parts by mass: 22-24 parts of cutleaf coneflower green manure, 15-17 parts of expanded vermiculite, 12-14 parts of corrupt leaf earth, 17-19 parts of composted duck manure, 14-16 parts of cottonseed cake fertilizer, 7-9 parts of seabird manure, 5-7 parts of furrow mud, 6-8 parts of copper sulfate pentahydrate, 3-5 parts of humic acid, 2-4 parts of a soil conditioner, 8-10 parts of zinc chelate, 4-6 parts of actinomycete manure, 1-3 parts of amino oligosaccharin and 50-60 parts of water. The chemical fertilizer specially used for the kiwi fruit is rich in nutrient substances, the kiwi fruit is promoted to be fine with juice and moderate in sweetness and acidities, organic fertilizer is contained in a formula, and soil property is improved, so that yield of the kiwi fruit is high, and yield stability of the kiwi fruit is strong.

The invention provides a heavy-duty waterborne epoxy sealer for a bridge. The sealer comprises a component A and a component B. The component A comprises E20 (53%) waterborne epoxy resin, E51 (60%) waterborne epoxy resin, an epoxy silane coupling agent, an acetylenic diol defoaming agent, an organosilicone defoaming agent, a wetting agent, a zinc chelate anti-rusting auxiliary agent, a polyurethane thickener and an epoxy reactive diluent AGE. The component B comprises a polyamide curing agent, a fatty amine curing agent, a cosolvent and purified water. The invention also provides a preparationmethod of the heavy-duty waterborne epoxy sealer. The heavy-duty waterborne epoxy sealer can meet the requirements of high penetration, high sealing performance and high strength, and is convenient to apply. The heavy-duty waterborne epoxy sealer only needs to be applied once (with a layer thickness of 30 [mu]m), and the overcoatability of the epoxy sealer is excellent.