Poly Vinyl Carbide

Polyvinyl borate pvbo which is a borate ester of pva has been expected as a promising precursor.

Poly vinyl carbide.

Coal is the main starting material for the calcium carbide process. Calcium carbide is the chemical name of cac2. It can be dissolved in acetone hydrochloric ether ester and some alcohol. 64 10 according to 2001 international relative atomic mass.

The acetylene so generated is then converted to vcm which usually involves the use of a mercury based catalyst. For an in depth knowledge on the uses physical and chemical properties structure of calcium carbide cac2 visit byju s. Learn more about pvc in this article. Pvc polyvinyl chloride a synthetic resin made from the polymerization of vinyl chloride.

It has good chemical stability corrosion resistance and water resistance. Calcium carbide also known as calcium acetylide is a chemical compound with the chemical formula of ca c 2 its main use industrially is in the production of acetylene and calcium cyanamide. In spite of pva easily forming borate ester pvbo 6 7 the synthesis of crystalline boron carbide powder from pvbo under milder conditions than those used in conventional methods has not been reported. Pva and boric acid were mixed heated at 200 250 c and then directly pyrolyzed at 750 c for 120 min in air.

Pvc is used in an enormous range of domestic and industrial products from raincoats and shower curtains to window frames and indoor plumbing. The process is also very energy intensive with much waste generated. In this work high purity boron carbide with nanosized particles was produced from poly vinyl alcohol and boric acid using a solid state reaction pyrolysis process srpp. The pure material is colorless however pieces of technical grade calcium carbide are grey or brown and consist of about 80 85 of cac 2 the rest is cao calcium oxide ca 3 p 2 calcium phosphide.

Carbide based polyvinyl chloride resin pvc resin sg5 k67 1. Calcium carbide cac2 calcium carbide is a colorless and odorless solid.