CHEMISTRY OF ADHESIVES & SEALANTS – WORLD OF CHEMICALS


adhesives, selants   An adhesive is a material used for holding two surfaces together. An adhesive must wet the surfaces, adhere to the surfaces, and by surface attachment that resists separation. Inorganic substances such as portland cement also can be considered adhesives. Natural adhesives have been known since antiquity. In the performance of adhesive joints, the physical and chemical properties of the adhesive are the most important factors. Read More
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CHEMISTRY OF GLASS – WORLD OF CHEMICALS


Glass

Glass Chemistry

Besides to usage of ceramics in laboratories glass [glassware] also used in the different laboratories. Other places where glass is used include windscreens of cars, windows in houses, furniture, television sets, soft drink bottles, water drinking glass, and spectacles

Glass is an amorphous solid material that exhibits a glass transition.  It is a state of matter in which the atoms and molecules are locked into place, but instead of forming neat, orderly crystals, they arrange themselves randomly.

Glass is having similarity with ceramics in terms of their properties like durability, strength and brittleness, high electrical and thermal resistance, and lack of chemical reactivity. Read More

CHEMISTRY OF CERAMICS – WORLD OF CHEMICALS


Ceramics

chemistry of ceramics

Every day in our homes we are using smooth, beautiful designed coffee cups, tea cups, plates and bowls. These should be handled carefully and proper maintenance required. Even in laboratories mortar and pestles lab ware manufactured by using special kind of material. All these kind of utensils and lab ware are made up of ceramic.

Ceramic materials are non-metallic, inorganic compounds-primarily compounds of oxygen, carbon, nitrogen, boron, and silicon. Ceramics includes the manufacture of earthenware, porcelain, bricks, sewer pipe and electrical insulators.

Ceramics was started using in time of Neolithic time. In this 20th centaury their uses reached to bowls to semiconductors. Some kind of advanced ceramics include alumina ceramics are using in missiles and rocket nose cones. Other advanced usage includes uranium dioxide (UO2) ceramics used in nuclear power plant elements, laser materials, ceramic capacitors, piezoelectric materials. Read More