Overview of minerals from kaolinite
The English name of kaolinite is kaolinite, which is mainly a product of natural alteration of feldspar and other silicate minerals. It is an aqueous aluminosilicate. It also includes dickite, perlite and halloysite and similarly amorphous but amphibolites, hence the name they belong to clay minerals, which always exist in very tiny crystallites or cryptocrystals. And produced in a dense block or soil aggregate. Kaolinite is a dense or loose block, generally white, and is beige if it contains impurities. Kaolinite becomes kaolin by weathering or sedimentation, and kaolin is a raw material for making ceramics. In addition, kaolin can be used as a chemical filler, refractory material, building materials, etc., and has a wide range of uses. There is a Gaoling Village in Jingdezhen, Jiangxi Province, China, which is rich in kaolin, hence the name. At the end of the Ming Dynasty, the mine was mined in Gaoling Village, Jingdezhen, and later introduced to the world of mineralogy by the German geologist Li Xihofen in the form of Kaolin.
Kaolinite belongs to a clay mineral and its chemical composition is Al4[Si4O10]·(OH)8. The crystal belongs to the triclinic layered structure silicate mineral. Mostly cryptocrystalline, dispersed powder, loose block aggregates. White or light gray, light green, light yellow, light red and other colors, streaks white, earthy luster. Mohs hardness of 2-2.5, specific gravity of 2.6-2.63. It has strong water absorption, and water has plasticity, sticky tongue and dry soil block with rough feeling.
Kaolinite is the main mineral that constitutes kaolin, and is common in the weathering crust of magmatic rocks and metamorphic rocks. The famous producing places of Chinese kaolinite include Jingdezhen in Jiangxi, Suzhou in Jiangsu, Tangshan in Hebei, and Fuling in Hunan. Other famous places in the world include Cornwall and Devon in the United Kingdom, Irière in France, and Georgia in the United States. Kaolinite is the main raw material for ceramics and is widely used in other industries.
The oxide form of kaolinite 2Al2O3.4SiO2.4H2O
Basic Information
Kaolin (also known as Guanyin soil, white mud, bentonite, bentonite, sweet earth, bentonite, clay, white mud) is an aluminum-containing silicate mineral, mainly white muddy, fine particles. It looks like flour. Its chemical composition is quite stable and is known as the “universal stoneâ€. The main raw material for the manufacture of porcelain and pottery.
Kaolin is mainly under the surface, and its texture and composition can directly affect the changes of pottery and porcelain in the kiln. Therefore, high-quality kaolin can produce excellent utensils, and often more famous kiln is built around it. Such as Jingdezhen in Jiangxi Province, China, and Jinmen County in Fujian Province.
Mineral composition
Kaolin is a clay mineral mainly composed of kaolin, which is rich in minerals including silicon, zinc, magnesium and aluminum. The chemical molecule is simple: Al4(Si4O10)OH8, in addition to Al2O3, it also contains SiO2.
PVC is a polar amorphous polymer with strong force between molecules. It is a hard and brittle material with low impact strength. After adding the impact modifier, the elastomer particles of the impact modifier can reduce the total craze induced stress, and use the deformation and shear band of the particles themselves to prevent the craze from expanding and growing, absorb the impact energy introduced into the material, so as to achieve the purpose of impact resistance.
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