Several known types of plastic packaging is polyethylene, polypropylene, polyester, nylon and vinyl plastic film.Jenis are widely used for various purposes (60% of sales of the world’s existing plastic) packaging is polystyrene, polypropylene, polyvinyl chloride and acrylic.<\/span>
\n a) Polyethylene<\/strong><\/span>
\n Polyethylene (PE) is a polymer of ethylene monomers made denganproses addition polymerization of ethylene gas obtained as a byproduct of the oil and coal industries.<\/span> The polymerization process can be done in two ways, namely polymerization in a high pressure vessel (1000-300 atm) generate macro molecules with many branches that is a mixture of straight and branched chain.<\/span> The second way, polymerization with a low pressure vessel (10-40 atm) generate macro straight-chain molecules and arranged in parallel.<\/span><\/p>\n

Polyethylene is a film that is soft, transparent and flexible, has the impact strength and good tear strength.<\/span> Polyethylene warming will cause it to become soft plastic dancair at a temperature of 110 ^{o<\/sup> C.<\/span> The nature of the low permeability and good mechanical properties, the polyethylene with a thickness 0.001-0.01inchi unttuk widely used to package food.<\/span> Including thermoplastic polyethylene plastic bracket so it can be formed into a pouch with a good degree of density.<\/span><\/p>\n}

b) Polypropylene<\/strong><\/span>
\n Polypropylene has a trade name Bexophane, Dynafilm, Luparen, Escon, Olefane and Profax.<\/span> The properties and its use is very similar to polyethylene, which are: lightweight (density 0.9 g \/ cm3) is formed transparent and clear in the form of a film, but not transparent in the form of rigid packaging is stronger than polieteilen (PE).<\/span> At low temperatures will be fragile, easily broken in pure form at a temperature of -30 ^{\u00b0<\/sup> C so it needs to be added to PE or other materials to improve resistance to impact.<\/span><\/p>\n}

Can not be used for packaging frozen.<\/span> -more rigid than PE and not easily torn so easy in handling and distribution, permeability (permeability) to low water vapor permeability to gases being, and not good for food are easily damaged by oxygen.<\/span> Resistant to high temperatures up to 1500C, so it can be used to sterilize food has a high melting point, so it is difficult to be formed into a bag with good results.<\/span><\/p>\n

Polypropylene is also resistant fat, strong acids and bases, so it is good for oil and fruit juice packaging.<\/span> At room temperature is not affected by solvents except by HCl.<\/span> At high temperatures PP will react with benzene, siklen, toluene, turpentine and nitratkuat acid.<\/span> The properties of polypropylene can be improved by modifying the OPP (oriented polyprophylene), namely the manufacturing is done by pulling in one direction, or into BOPP (biaxial oriented polypropylene), if drawn from two directions.<\/span><\/p>\n

c) Polyvinyl Chloride<\/strong><\/span>
\n Several types of Polyvinyl Chloride, namely:<\/span>
\n (1) Plasticized Vinyl chloride is the material used is a plasticizer resins (polyester, epoxy) and a non resin (ptalat and phosphate).<\/span>
\n (2) Vinyl copolimer plastized similar to vinyl chloride, only the engine in the form of a polymer, so that it can be used for packaging blisterpack, cosmetics and others.<\/span>
\n (3) Oriented Film is kind of oriented films have properties that flexible (soft) and not easily wrinkled.<\/span><\/p>\n

General properties are oriented packaging (a) transparent, there is also a murky, permeability to water vapor and low gas;<\/span> (b) oil resistance, alcohol and petroleum solvents, which can be used for packaging, butter, margarine and cooking oil, high tensile strength and is not easily torn;<\/span> (c) influenced by aromatic hydrocarbons, ketones, aldehydes, esters, aromatic ether, anhydrous and molecules containing sulfur, nitrogen and phosphorus.<\/span> Not affected by acids and bases, except oxidizing acids, but plasticizers will be hydrolyzed by acids and bases concentrated density of 1.35-1.4 g \/ cm3.<\/span><\/p>\n

d) Acrylic<\/strong><\/span>
\n Acrylic is the name of thermo plastic crystal clear under the trade name Lucie, Barex and Plexiglas.<\/span> Some properties of acrylic are: rigid and transparent, retaining good against oxygen and light, its melting point is low (65.5 0C), at low temperatures tend to be liquid, easily damaged depending on the formula that put them resistant to petroleum, but unraveled by low alcohol, HCl, acid oxidizing, ketones, esters and aromatic solvents can not be covered with mold, sensitive to strong acids and bases Acrylic is widely used as coating materials for other hard materials, and were used for dentures and glasses.<\/span><\/p>\n

Packaging which uses acrylic is liquor bottles.<\/span>
\n<\/a>
\n Figure 32. Plastic packaging in plastic bags on the eggplant and potatoes<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Several known types of plastic packaging is polyethylene, polypropylene, polyester, nylon and vinyl plastic film.Jenis are widely used for various purposes (60% of sales of the world’s existing plastic) packaging is polystyrene, polypropylene, polyvinyl chloride and acrylic. a) Polyethylene Polyethylene (PE) is a polymer of ethylene monomers made denganproses addition polymerization of ethylene gas obtained …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1820],"tags":[1209,1212,1216,1218,1215,1211,1210,1217,1214,1213],"class_list":["post-710","post","type-post","status-publish","format-standard","hentry","category-english","tag-plastic-packaging","tag-plastic-packaging-bags","tag-plastic-packaging-boxes","tag-plastic-packaging-companies","tag-plastic-packaging-containers","tag-plastic-packaging-corp","tag-plastic-packaging-inc","tag-plastic-packaging-machine","tag-plastic-packaging-tubes","tag-plastic-packaging-wrap"],"_links":{"self":[{"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/posts\/710","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/comments?post=710"}],"version-history":[{"count":1,"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/posts\/710\/revisions"}],"predecessor-version":[{"id":2941,"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/posts\/710\/revisions\/2941"}],"wp:attachment":[{"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/media?parent=710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/categories?post=710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tneutron.net\/pangan\/wp-json\/wp\/v2\/tags?post=710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}