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Zinc salt coating crosslinking agent
2017-8-21 18:14:32
Zinc salt coating crosslinking agent is the first non-formaldehyde crosslinking agent developed in 1965, and zinc salt crosslinking agent is used in water dispersion coatings containing carboxylic acid. Its advantage is that it can provide a stable single - packing coating, can crosslinking at room temperature, and has excellent film hardness and water resistance.
Zinc is a chemical element whose chemical symbol is Zn, whose atomic number is 30, and in the periodic table of the chemical element, the fourth cycle, the IIB family. It's a light grey transition metal. Zinc is the fourth most common metal, after iron, aluminum and copper, but the most abundant elements of the crust are oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. The appearance of silver white, in modern industry has an indelible position in battery manufacturing, for a rather important metal.
Zinc, its name "zinc" comes from the Latin Zincum, meaning "white thin layer" or "white sediment". The chemical symbol is Zn, and its atomic number is 30, and the atomic mass is 65. With a light blue metal zinc is a silvery white, density of 7.14 g/cm3, melting point is 419.5 ℃. At room temperature, the sex is more brittle; 100 ~ 150 ℃, soft; After more than 200 ℃, and brittle. The chemical properties of zinc are active, and in the air at normal temperature, the surface is formed a thin and dense zinc carbonate film, which can prevent further oxidation. When the temperature reaches 225 ℃, zinc oxide.
Zinc is hard to burn in the air and emits a strong white light in oxygen. Flame reaction: a blue-green fire, because there is a layer of zinc oxide, zinc white smoke from burning, white smoke mainly of zinc oxide, zinc not only cut off the combustion, be a pale light refraction flame, burning so laboratory zinc block not aquamarine blue flame. Zinc is soluble in acid, and it is also easy to replace gold, silver and copper from solution. Zinc has a high melting point, but the melting point of metal zinc is very low, so on the alcohol lamp, the zinc plate is heated and the zinc plate melts and becomes soft, but it does not fall, because of the action of the oxide film.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
Zinc is a chemical element whose chemical symbol is Zn, whose atomic number is 30, and in the periodic table of the chemical element, the fourth cycle, the IIB family. It's a light grey transition metal. Zinc is the fourth most common metal, after iron, aluminum and copper, but the most abundant elements of the crust are oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. The appearance of silver white, in modern industry has an indelible position in battery manufacturing, for a rather important metal.
Zinc, its name "zinc" comes from the Latin Zincum, meaning "white thin layer" or "white sediment". The chemical symbol is Zn, and its atomic number is 30, and the atomic mass is 65. With a light blue metal zinc is a silvery white, density of 7.14 g/cm3, melting point is 419.5 ℃. At room temperature, the sex is more brittle; 100 ~ 150 ℃, soft; After more than 200 ℃, and brittle. The chemical properties of zinc are active, and in the air at normal temperature, the surface is formed a thin and dense zinc carbonate film, which can prevent further oxidation. When the temperature reaches 225 ℃, zinc oxide.
Zinc is hard to burn in the air and emits a strong white light in oxygen. Flame reaction: a blue-green fire, because there is a layer of zinc oxide, zinc white smoke from burning, white smoke mainly of zinc oxide, zinc not only cut off the combustion, be a pale light refraction flame, burning so laboratory zinc block not aquamarine blue flame. Zinc is soluble in acid, and it is also easy to replace gold, silver and copper from solution. Zinc has a high melting point, but the melting point of metal zinc is very low, so on the alcohol lamp, the zinc plate is heated and the zinc plate melts and becomes soft, but it does not fall, because of the action of the oxide film.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
Zinc is also one of the elements that humans have known since ancient times. The zinc and copper smelting alloys - brass, used by ancient people. But the shape of metal zinc than copper, iron, tin, and lead to much later, it is generally believed this is due to carbon and zinc on hot, temperature up to 1000 ℃ or more quickly, and metal zinc boiling point is 906 ℃, so the zinc becomes a vapor state, along with the smoke is lost, not easy to detect by the ancient people, only when people have mastered the method of condensate gas, elemental zinc could be obtained.
Zinc sulfite, zinc sulfate and zinc chloride are easy to dissolve. Zinc carbonate and zinc sulfide are insoluble.
Zinc nitrate crystallization is a colorless square crystal system, easy deliquescence, avoid light, storage for machine and bicycle parts galvanized, preparation of iron phosphating agent, fabric used as a mordant in dyeing, dye synthesis items preservation agent and latex coagulation agent, etc.
Zinc sulfate is a colorless or white crystal, granule or powder, alias white alum. No smell. Bitter. Weathering in dry air, all 280 ℃ lose crystal water, above 500 ℃. 1g dissolved in 0.6 ml water, 2.5 ml glycerin, insoluble in ethanol. The aqueous solution is acidic in the litmus, with a pH of about 4.5. It is not easy to lump the crystal water with 1 molecule. The relative density is 1.97. Melting point is 100 ℃. Minimum lethal dose (rats, via mouth) 2200mg/kg. It's stimulating. Used for making litho, and used as a mordant, astringent, wood preservative, etc.
Zinc chloride is one of the important products of inorganic salt industry. Zinc chloride soluble in water, is the largest solid salt solubility (25 ° C, 432 g / 100 g), its reason is soluble in water to form complex acid H [ZnCl2 (OH)]. Soluble in methanol, ethanol, glycerin, acetone, ether, insoluble in liquid ammonia. The moisture can absorb moisture from the air. Properties of dissolved metal oxide and cellulose. Molten zinc chloride has good conductivity. A thick white smoke was formed during the heat. Zinc chloride is corrosive and toxic.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Zinc is also one of the elements that humans have known since ancient times. The zinc and copper smelting alloys - brass, used by ancient people. But the shape of metal zinc than copper, iron, tin, and lead to much later, it is generally believed this is due to carbon and zinc on hot, temperature up to 1000 ℃ or more quickly, and metal zinc boiling point is 906 ℃, so the zinc becomes a vapor state, along with the smoke is lost, not easy to detect by the ancient people, only when people have mastered the method of condensate gas, elemental zinc could be obtained.
Zinc sulfite, zinc sulfate and zinc chloride are easy to dissolve. Zinc carbonate and zinc sulfide are insoluble.
Zinc nitrate crystallization is a colorless square crystal system, easy deliquescence, avoid light, storage for machine and bicycle parts galvanized, preparation of iron phosphating agent, fabric used as a mordant in dyeing, dye synthesis items preservation agent and latex coagulation agent, etc.
Zinc sulfate is a colorless or white crystal, granule or powder, alias white alum. No smell. Bitter. Weathering in dry air, all 280 ℃ lose crystal water, above 500 ℃. 1g dissolved in 0.6 ml water, 2.5 ml glycerin, insoluble in ethanol. The aqueous solution is acidic in the litmus, with a pH of about 4.5. It is not easy to lump the crystal water with 1 molecule. The relative density is 1.97. Melting point is 100 ℃. Minimum lethal dose (rats, via mouth) 2200mg/kg. It's stimulating. Used for making litho, and used as a mordant, astringent, wood preservative, etc.
Zinc chloride is one of the important products of inorganic salt industry. Zinc chloride soluble in water, is the largest solid salt solubility (25 ° C, 432 g / 100 g), its reason is soluble in water to form complex acid H [ZnCl2 (OH)]. Soluble in methanol, ethanol, glycerin, acetone, ether, insoluble in liquid ammonia. The moisture can absorb moisture from the air. Properties of dissolved metal oxide and cellulose. Molten zinc chloride has good conductivity. A thick white smoke was formed during the heat. Zinc chloride is corrosive and toxic.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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