anatase titanium dioxide for paints supplier

Zinc oxide. Zinc oxide is a popular cross-linking agent for rubber and for various resins. It is essential in the formulation of solvent-borne polychloroprene adhesives. Furthermore, zinc oxide is a good UV stabilizer, has biocidal activity and has a relatively high refractive index (2.0) which makes it an efficient white pigment. Some typical properties are: density 5.6 g/cm3; particle size 0.036-3 μm; oil absorption 10–20 g/100 g; specific surface area 10–45 m2/g. Zinc oxide is produced by reaction of the metal in the vapour state with oxygen. Zinc oxide is nonporous and is quite pure. Thus, the high surface area of some grades is due to the small particle size of zinc oxide. Some grades, especially for use in the rubber industry, are surface modified by deposition of 0.2-0.4% of stearic acid, propionic acid, or light oil [47].

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Manufacturing barium sulfate involves a meticulous process, typically starting with the extraction of barite, a naturally occurring mineral rich in barium sulfate. These mines, often located in China, India, and the United States, are the primary source of raw material for global barium sulfate factories. Once extracted, the barite undergoes purification to remove impurities like silica, iron, and clay, ensuring high-grade barium sulfate production.

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{随机栏目} 2025-08-15 02:05 808