- published: 14 Sep 2015
- views: 21369
Polyvinyl chloride, more correctly but unusually poly(vinyl chloride), commonly abbreviated PVC, is the third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene.
PVC comes in two basic forms: rigid (sometimes abbreviated as RPVC) and flexible. The rigid form of PVC is used in construction for pipe and in profile applications such as doors and windows. It is also used for bottles, other non-food packaging, and cards (such as bank or membership cards). It can be made softer and more flexible by the addition of plasticizers, the most widely used being phthalates. In this form, it is also used in plumbing, electrical cable insulation, imitation leather, signage, inflatable products, and many applications where it replaces rubber.
Pure poly (vinyl chloride) is a white, brittle solid. It is insoluble in alcohol but slightly soluble in tetrahydrofuran.
PVC was accidentally synthesized in 1872 by German chemist Eugen Baumann. The polymer appeared as a white solid inside a flask of vinyl chloride that had been left exposed to sunlight. In the early 20th century the Russian chemist Ivan Ostromislensky and Fritz Klatte of the German chemical company Griesheim-Elektron both attempted to use PVC in commercial products, but difficulties in processing the rigid, sometimes brittle polymer thwarted their efforts. Waldo Semon and the B.F. Goodrich Company developed a method in 1926 to plasticize PVC by blending it with various additives. The result was a more flexible and more easily processed material that soon achieved widespread commercial use.
Crash or CRASH may refer to:
Test aprobado con un sobresaliente! Excepto por mi pierna. Me duele!!! Tengo que hacerme más vídeo-test porque la grabación ha sido una auténtica caca de marsupial, aparte que en el golpe me dí por detrás de la rodilla y me quedé cojo para un par de dias... PVC vs NEUMÁTICO: Al haber menos centímetros de PVC en rozamiento contra el suelo, el PVC hará menos presión lateral sobre los neumáticos. Esta semana toca teoría pura! Así que no quiero ver bostezos Un saludo!!!
Endüstriyel kapı Hörmnn anti crash hızlı pvc sarmal kapı hizmetimiz ve daha fazla detay için sitemizi ziyaret ediniz. http://www.gimes.com.tr/hizli-pvc-sarmal-branda-kapilar/hizli-otomatik-pvc-branda-sarmal-kapilar-bursa.Html
Industrial PVC Crash Door with Full Vision Panels
http://www.sitmeanssit.com My puppy "Crash", born March 31st 2012, is seen here just waiting for his opportunity to grab the PVC that was thrown for the older Labrador Retriever. Luckily the Lab dropped it when he got back and "Crash" got his opportunity.
(a small part of my crash)
A fiery crash involving a truck and at least two cars spills PVC pipes onto the highway and closes the southbound lanes of Interstate 95 for hours.
Darbelere karşı sorunsuz şekilde çalışmasını sürdüren technodoors flexi kapı, İç yapısında sahip olduğu esnek konstrüktif elemanları ve her türlü darbede kendini net şekilde toplayabilme özelliği ile üstün bir kapı... (Flexi Kapı'yı kendi parçaları ve genel yapısı ile kendimiz tasarlayıp geliştirdiğimiz için istenilen genişlik ve yükseklikte üretebilmekteyiz) teknobrand ltd. technodoors tarafından dünya standartlarında üretilen yüksek kaliteye sahip endüstriyel sarmal pvc kapılar, istenilen ebatlarda ve hızda... www.technodoors.eu - www.teknobrand.com
Test aprobado con un sobresaliente! Excepto por mi pierna. Me duele!!! Tengo que hacerme más vídeo-test porque la grabación ha sido una auténtica caca de marsupial, aparte que en el golpe me dí por detrás de la rodilla y me quedé cojo para un par de dias... PVC vs NEUMÁTICO: Al haber menos centímetros de PVC en rozamiento contra el suelo, el PVC hará menos presión lateral sobre los neumáticos. Esta semana toca teoría pura! Así que no quiero ver bostezos Un saludo!!!
Endüstriyel kapı Hörmnn anti crash hızlı pvc sarmal kapı hizmetimiz ve daha fazla detay için sitemizi ziyaret ediniz. http://www.gimes.com.tr/hizli-pvc-sarmal-branda-kapilar/hizli-otomatik-pvc-branda-sarmal-kapilar-bursa.Html
Industrial PVC Crash Door with Full Vision Panels
http://www.sitmeanssit.com My puppy "Crash", born March 31st 2012, is seen here just waiting for his opportunity to grab the PVC that was thrown for the older Labrador Retriever. Luckily the Lab dropped it when he got back and "Crash" got his opportunity.
(a small part of my crash)
A fiery crash involving a truck and at least two cars spills PVC pipes onto the highway and closes the southbound lanes of Interstate 95 for hours.
Darbelere karşı sorunsuz şekilde çalışmasını sürdüren technodoors flexi kapı, İç yapısında sahip olduğu esnek konstrüktif elemanları ve her türlü darbede kendini net şekilde toplayabilme özelliği ile üstün bir kapı... (Flexi Kapı'yı kendi parçaları ve genel yapısı ile kendimiz tasarlayıp geliştirdiğimiz için istenilen genişlik ve yükseklikte üretebilmekteyiz) teknobrand ltd. technodoors tarafından dünya standartlarında üretilen yüksek kaliteye sahip endüstriyel sarmal pvc kapılar, istenilen ebatlarda ve hızda... www.technodoors.eu - www.teknobrand.com
Stories: Google to release Augmented Reality Glasses this year http://news.cnet.com/1606-2_3-50120365.html?part=rss&subj;=news&tag;=2547-1_3-0-20 Adobe and Google team up to make Flash for Linux http://www.engadget.com/2012/02/22/google-and-adobe-team-up-to-make-flash-player-for-linux/ MS Office for the iPad - Reported by The Daily, MS says "huh? http://news.cnet.com/8301-10805_3-57382737-75/microsoft-office-for-the-ipad-to-be-or-not-to-be/?part=rss&subj;=news&tag;=2547-1_3-0-20 MS complains to EU about Motorola Mobilty Patents http://www.pcworld.com/article/250459/microsoft_complains_to_the_eu_about_motorola_mobility.html#tk.rss_news Two spectrum deals that Verizon announced in December http://www.pcworld.com/businesscenter/article/250458/groups_ask_fcc_to_block_verizon_spectrum_deal...