[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.aponia.cz\/polystyrenove-vylisky-nas-provazi-jiz-desitky-let\/#Article","mainEntityOfPage":"https:\/\/www.aponia.cz\/polystyrenove-vylisky-nas-provazi-jiz-desitky-let\/","headline":"Polystyrenov\u00e9 v\u00fdlisky n\u00e1s prov\u00e1z\u00ed ji\u017e des\u00edtky let","name":"Polystyrenov\u00e9 v\u00fdlisky n\u00e1s prov\u00e1z\u00ed ji\u017e des\u00edtky let","description":"Polystyren je jedn\u00edm z \u010dlen\u016f rozv\u011btven\u00e9 rodiny, jejich\u017e mate\u0159sk\u00fdm polymerem je ethylen. Pr\u016fmyslov\u00e1 v\u00fdroba polystyrenu je ji\u017e dlouhodob\u00e1 z\u00e1le\u017eitost a…","datePublished":"2025-03-03","dateModified":"2023-05-04","author":{"@type":"Person","@id":"https:\/\/www.aponia.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.aponia.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/4bf629230dc34158290ba5b10491f45b3bfbba94b88af3386c3da2fed730f430?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4bf629230dc34158290ba5b10491f45b3bfbba94b88af3386c3da2fed730f430?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"aponia.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.aponia.cz\/wp-content\/uploads\/img_a308307_w2065_t1519416822.jpg","url":"https:\/\/www.aponia.cz\/wp-content\/uploads\/img_a308307_w2065_t1519416822.jpg","height":0,"width":0},"url":"https:\/\/www.aponia.cz\/polystyrenove-vylisky-nas-provazi-jiz-desitky-let\/","wordCount":408,"articleBody":" Polystyren je jedn\u00edm z \u010dlen\u016f rozv\u011btven\u00e9 rodiny, jejich\u017e mate\u0159sk\u00fdm polymerem je ethylen. Pr\u016fmyslov\u00e1 v\u00fdroba polystyrenu je ji\u017e dlouhodob\u00e1 z\u00e1le\u017eitost a krom\u011b extrudovan\u00e9ho polystyrenu, kter\u00fd v\u0161ichni dob\u0159e zn\u00e1me z revitalizace panelov\u00fdch s\u00eddli\u0161\u0165 jako fas\u00e1dn\u00ed materi\u00e1l, se s n\u00edm setk\u00e1v\u00e1me i u mnoha jin\u00fdch v\u00fdrobk\u016f. N\u011bkte\u0159\u00ed z n\u00e1s \u010dasto ani netu\u0161\u00ed, \u017ee onen plastov\u00fd kus, kter\u00fd pr\u00e1v\u011b dr\u017e\u00ed v ruce, je polystyren.   Plastikov\u00e9 modely letadel a lod\u00ed Lete\u010dt\u00ed model\u00e1\u0159i jej dob\u0159e znaj\u00ed. V\u0161echny ty v\u00fdlisky nejdrobn\u011bj\u0161\u00edch sou\u010d\u00e1stek model\u016f letadel jsou vyrobeny pr\u00e1v\u011b z polystyrenu. \u010cir\u00fd polystyren, kter\u00fd sv\u00fdm vzhledem m\u016f\u017ee evokovat plexisklo, se zas vyu\u017e\u00edv\u00e1 k v\u00fdrob\u011b speci\u00e1ln\u00edch pom\u016fcek v laborato\u0159\u00edch a ve zdravotnictv\u00ed. Jmenujme nap\u0159. spektrofotometrick\u00e9 kyvety, r\u016fzn\u00e9 typy a velikosti zkumavek, Petriho misky, atd. Dal\u0161\u00edmi v\u00fdrobky z polystyrenu, co\u017e V\u00e1s m\u016f\u017ee p\u0159ekvapit, jsou kel\u00edmky, plastov\u00e9 p\u0159\u00edbory, t\u00e1cky a podnosy, n\u011bkter\u00e9 plastov\u00e9 p\u0159epravky, v\u00edky, obaly c\u00e9d\u00e9\u010dek a DVD m\u00e9di\u00ed, plastov\u00e9 hrnky, misky a n\u00e1dob\u00ed.  \u010ctvrt\u00fd nejpou\u017e\u00edvan\u011bj\u0161\u00ed plast Polystyren je termoplast a vyr\u00e1b\u00ed se v n\u011bkolika z\u00e1kladn\u00edch modifikac\u00edch procesem polymerace styrenu. (Styren, jin\u00fdmi slovy fenylethylen nebo vinylbenzen, je toxick\u00fd aromatick\u00fd uhlovod\u00edk – kapalina, kter\u00e1 se na vzduchu rozkl\u00e1d\u00e1 na formaldehyd a benzaldehyd). Polymerac\u00ed styrenu vznikaj\u00ed krystalov\u00e9 polystyreny, zp\u011b\u0148ovateln\u00e9 polystyreny (EPS), hou\u017eevnat\u00e9 polystyreny (PS), kopolymery, a vytla\u010dovan\u00e9 p\u011bnov\u00e9 polystyreny (XPS).  Polystyren ve stavebnictv\u00ed jako izola\u010dn\u00ed materi\u00e1l Ve sv\u011bt\u011b se vyrob\u00ed ro\u010dn\u011b p\u0159ibli\u017en\u011b 13 milion\u016f tun tuh\u00e9ho polystyrenu a 7 milion\u016f tun p\u011bnov\u00e9ho polystyrenu. Jedn\u00e1 se o \u010dtvrt\u00fd nejpou\u017e\u00edvan\u011bj\u0161\u00ed termoplast, a to t\u00e9m\u011b\u0159 ve v\u0161ech odv\u011btv\u00edch lidsk\u00e9 \u010dinnosti. Vyu\u017e\u00edvan\u011bj\u0161\u00edmi plasty jsou pouze polypropylen, polyethylen a polyvinylchlorid, zn\u00e1m\u00fd jako PVC. V\u00fdhodou polystyrenu, v jak\u00e9koli podob\u011b, je jeho pomal\u00e1 biodegradace. Tato vlastnost z n\u011bj \u010din\u00ed v\u00fdborn\u00e9ho pomocn\u00edka ve stavebnictv\u00ed, proto\u017ee odol\u00e1v\u00e1 p\u016fsoben\u00ed vn\u011bj\u0161\u00edch vliv\u016f pom\u011brn\u011b dlouhou dobu. Nev\u00fdhodou tohoto materi\u00e1lu je naopak jeho k\u0159ehkost, o \u010dem\u017e jsme se mnoz\u00ed p\u0159esv\u011bd\u010dili. A tak\u00e9 velmi mal\u00e1 tepeln\u00e1 odolnost. Ji\u017e p\u0159i 70 stupn\u00edch Celsia se polystyren za\u010d\u00edn\u00e1 tavit.                                                                                                                                                                                                                                                                                                                                                                                         4.3\/5 - (7 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Polystyrenov\u00e9 v\u00fdlisky n\u00e1s prov\u00e1z\u00ed ji\u017e des\u00edtky let","item":"https:\/\/www.aponia.cz\/polystyrenove-vylisky-nas-provazi-jiz-desitky-let\/#breadcrumbitem"}]}]