Difference between revisions of "Polyvinyl Chloride"
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PVC can be produced on Mars by polymerization of [[Vinyl Chloride|vinyl chloride]], itself a product of the hydrochlorination of [[acetylene]]. | PVC can be produced on Mars by polymerization of [[Vinyl Chloride|vinyl chloride]], itself a product of the hydrochlorination of [[acetylene]]. | ||
| − | Polymerization requires the use of polymerization initiator and other additives. A typical initiator is [[peroxide]]. | + | Polymerization requires the use of water as a suspension medium, a polymerization initiator and other additives. A typical initiator is dioctanoyl [[peroxide]]. The reaction is exothermal and requires cooling. The reaction product is long chain polymers of PVC, that are dried and pelletized. Degassed vinyl chloride is recycled. |
==Uses== | ==Uses== | ||
PVC is used for piping and insulation of electric cables. | PVC is used for piping and insulation of electric cables. | ||
Revision as of 05:09, 22 June 2021
Polyvinyl chloride, or PVC, is a polymerized form of Vinyl chloride. It take the form of a chain of Vinyl Chloride molecules.
It is the third most common plastics after polyethylene (PE) and polypropylene (PP).
In Situ production
PVC can be produced on Mars by polymerization of vinyl chloride, itself a product of the hydrochlorination of acetylene.
Polymerization requires the use of water as a suspension medium, a polymerization initiator and other additives. A typical initiator is dioctanoyl peroxide. The reaction is exothermal and requires cooling. The reaction product is long chain polymers of PVC, that are dried and pelletized. Degassed vinyl chloride is recycled.
Uses
PVC is used for piping and insulation of electric cables.
