What is ” Commodity plastics”?<\/p>\n
\u00a0There is a group of plastics materials that are used in very large quantities because they are low-cost and suitable for a wide variety of applications. Such plastics are called commodity plastics.<\/p>\n
\u00a0PE, PP, PS, and PVC are typical of this group. They are collectively called the “”four major commodity plastics””. Sometimes one of them, PE, is further divided into low-density polyethylene (LDPE) and high-density polyethylene (HDPE). In this case, they are called the “” five major commodity plastics””.\u00a0 (CT 2-2 P3, METI)”<\/p>\n
Did you know Polyethylene is stronger than Iron?<\/p>\n
” Almost ideal polyethylene (PE) fibers are stronger than steel even if the two materials of equal thickness are compared.<\/p>\n
\u00a0An extremely large is required to tear off the carbon-carbon bonds of polyethylene. So, if we completely aligned the directions in which PE molecules are arranged, the force acting in this direction would be stronger than iron.<\/p>\n
\u00a0The PE fiber produced by the called ultra-drawing or super-drawing is stronger than iron. This fiber is used for applications such as ropes tying\u00a0 a large ship to port and bullet proof vests etc.<\/p>\n
\u00a0You may not believe that PE is stronger than iron. But, it is no wonder. This fact makes sense because diamond made up of the same carbon-carbon bonds alone is extremely strong.<\/p>","protected":false},"excerpt":{"rendered":"
What is ” Commodity plastics”? \u00a0There is a group of plastics materials that are used in very large quantities because they are low-cost and suitable for a wide variety of applications. Such plastics are called commodity plastics. \u00a0PE, PP, PS, and PVC are typical of this group. They are collectively called the “”four major commodity […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1553","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/pages\/1553","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/comments?post=1553"}],"version-history":[{"count":3,"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/pages\/1553\/revisions"}],"predecessor-version":[{"id":1559,"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/pages\/1553\/revisions\/1559"}],"wp:attachment":[{"href":"https:\/\/www.hipf.edu.sa\/en\/wp-json\/wp\/v2\/media?parent=1553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}