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Description
  • Cílem práce v oblasti materiálů na bázi škrobu bylo zpracovat termoplastický škrob vyfukováním. V prvním kroku bylo třeba vybrat na základě testování tažnosti surovinu vhodnou pro zpracování, zejména optimalizovat obsah glycerolu a výrobní teploty. V dalším se pak jednalo o zkoušky výroby fólií vyfukováním, při kterém se objevily problémy s lepivostí a kolapsem vyfukovacího rukávu. Nejlepších výsledků bylo dosaženo s materiálem obsahujícím 22 hmotnostních % glycerolu a při teplotním profilu 90-120-115-95 °C. (cs)
  • Paper describes film blowing of the thermoplastic starch material and aims to find possible processing window. Parameters like temperature profile of extruder, glycerol content and closely related moisture content were investigated. Rather surprisingly, processing of material with 45 parts of glycerol (from the previous research expected to be the most reasonable) led to stickiness resulting in collapse of bubble. Reduction of glycerol content down to 22 parts and water content to 10 % was found to be a compromise avoiding double-walled glued film and still maintaining sufficient expansion. The largest bubble diameter, i.e. the thinnest film, was obtained upon drying the material for 2 minutes prior to extrusion at the following temperature profile: 90, 120, 115, 95 °C. The results of the study of thermoplastic starch served as a base for the European patent application, which was recently approved (WO/2008/105705).
  • Paper describes film blowing of the thermoplastic starch material and aims to find possible processing window. Parameters like temperature profile of extruder, glycerol content and closely related moisture content were investigated. Rather surprisingly, processing of material with 45 parts of glycerol (from the previous research expected to be the most reasonable) led to stickiness resulting in collapse of bubble. Reduction of glycerol content down to 22 parts and water content to 10 % was found to be a compromise avoiding double-walled glued film and still maintaining sufficient expansion. The largest bubble diameter, i.e. the thinnest film, was obtained upon drying the material for 2 minutes prior to extrusion at the following temperature profile: 90, 120, 115, 95 °C. The results of the study of thermoplastic starch served as a base for the European patent application, which was recently approved (WO/2008/105705). (en)
Title
  • Film blowing of thermoplastic starch
  • Film blowing of thermoplastic starch (en)
  • Zpracování termoplastických škrobů vyfukováním (cs)
skos:prefLabel
  • Film blowing of thermoplastic starch
  • Film blowing of thermoplastic starch (en)
  • Zpracování termoplastických škrobů vyfukováním (cs)
skos:notation
  • RIV/70883521:28110/08:63507377!RIV09-MSM-28110___
http://linked.open...avai/riv/aktivita
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  • Z(MSM7088352101)
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...dnocenehoVysledku
  • 367930
http://linked.open...ai/riv/idVysledku
  • RIV/70883521:28110/08:63507377
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http://linked.open.../riv/klicovaSlova
  • film blowing; mechanical properties; plasticizer; starch; thermoplastic starch (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [7BB27C6E144B]
http://linked.open...i/riv/nazevZdroje
  • Carbohydrate Polymers
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 71
http://linked.open...iv/tvurceVysledku
  • Kuthanová, Vanda
  • Rigdahl, Mikael
  • Boldizar, Antal
  • Thunwall, Mats
http://linked.open...n/vavai/riv/zamer
issn
  • 0144-8617
number of pages
http://localhost/t...ganizacniJednotka
  • 28110
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