Search results
Results From The WOW.Com Content Network
Dielectric Breakdown Voltage. 40 MV/m. Polyvinyl chloride (alternatively: poly (vinyl chloride), [6] [7] colloquial: vinyl [8] or polyvinyl; abbreviated: PVC [8]) is the world's third-most widely produced synthetic polymer of plastic (after polyethylene and polypropylene ). About 40 million tons of PVC are produced each year.
Chlorinated polyvinyl chloride ( CPVC) is a thermoplastic produced by chlorination of polyvinyl chloride (PVC) resin. CPVC is significantly more flexible than PVC, and can also withstand higher temperatures. Uses include hot and cold water delivery pipes and industrial liquid handling. CPVC, like PVC, is deemed safe for the transport and use of ...
Specialty. Cardiology. A premature ventricular contraction ( PVC) is a common event where the heartbeat is initiated by Purkinje fibers in the ventricles rather than by the sinoatrial node. PVCs may cause no symptoms or may be perceived as a "skipped beat" or felt as palpitations in the chest. PVCs do not usually pose any danger.
Red List Building Materials contain chemicals that have been designated as harmful to living creatures, including humans, or the environment. The Living Building Challenge Red List is maintained by the International Living Future Institute, and is the only organization that uses the term 'Red List'.
Vinyl siding is plastic exterior siding for houses and small apartment buildings, used for decoration and weatherproofing, imitating wood clapboard, batten board and batten or shakes, and used instead of other materials such as aluminum or fiber cement siding. It is an engineered product, manufactured primarily from polyvinyl chloride (PVC) resin.
AOL latest headlines, entertainment, sports, articles for business, health and world news.
Sign in to AOL Mail, a free and secure email service with advanced settings, mobile access, and personalized compose. Get live help from AOL experts if needed.
Vinyl polymer. In polymer chemistry, vinyl polymers are a group of polymers derived from substituted vinyl ( H2C=CHR) monomers. Their backbone is an extended alkane chain [−CH2−CHR−]. [1] In popular usage, "vinyl" refers only to polyvinyl chloride (PVC).