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Statements

Subject Item
n2:RIV%2F70883521%3A28110%2F04%3A63502771%21RIV%2F2005%2FMSM%2F281105%2FN
rdf:type
n7:Vysledek skos:Concept
dcterms:description
The present paper deals with structural and flow properties of PP and PET blends compatibilised by maleic anhydride (MA) in combination with two modifiers - epoxidized thermoplastic elastomer and silicone/acrylic-based rubber. Rheological experiments at both steady and dynamic shear regimes were performed on rotational cone-plate rheometer at 265°C (above melting temperature of PET) and 245°C (below it). In the latter case, PET particles are not completely melted, acting as soft filler. Increased rheological functions are generally observed for PP/PET/MA (due to enhanced interfacial interactions), which is further increased by elastomeric modifiers. These also bring satisfactory phase structure resulting from possible reactions between functional groups in the modifier and blend components, particularly for epoxy-modified thermoplastic elastomer. The addition of elastomeric modifiers also leads to a significant increase in viscosity of PP/PET blends, which can be utilised in their processing. The present paper deals with structural and flow properties of PP and PET blends compatibilised by maleic anhydride (MA) in combination with two modifiers - epoxidized thermoplastic elastomer and silicone/acrylic-based rubber. Rheological experiments at both steady and dynamic shear regimes were performed on rotational cone-plate rheometer at 265°C (above melting temperature of PET) and 245°C (below it). In the latter case, PET particles are not completely melted, acting as soft filler. Increased rheological functions are generally observed for PP/PET/MA (due to enhanced interfacial interactions), which is further increased by elastomeric modifiers. These also bring satisfactory phase structure resulting from possible reactions between functional groups in the modifier and blend components, particularly for epoxy-modified thermoplastic elastomer. The addition of elastomeric modifiers also leads to a significant increase in viscosity of PP/PET blends, which can be utilised in their processing. Práce se věnuje studiu strukturních a tokových vlastností systémů tvořených polypropylenem (PP) a polyetylentereftalátem (PET), které byly kompatibilizovány malein anhydridem a dále modifikovány přísadami elastomerní povahy. Měření tokových vlastností bylo provedeno na rotačním reometru jak v ustáleném, tak oscilačním režimu. Pro stanovení reologických charakteristik byly též zvoleny dva teplotní režimy, tj. 245°C a 265°C, kdy v prvním případě se jedná spíše o analogii plněných systémů, neboť složka PET není za této teploty roztavena a chová se jako plnivo. Přídavek elastomerů byl cílen ke zlepšení zpracovatelnosti PP/PET směsí a jejich rázových charakteristik.
dcterms:title
Role různých modifikátorů při kompatibilizaci PP/PET směsí - tokové a strukturní vlastnosti The role of various modifiers in the compatibilisation of PP/PET blends - rheological and structural properties The role of various modifiers in the compatibilisation of PP/PET blends - rheological and structural properties
skos:prefLabel
The role of various modifiers in the compatibilisation of PP/PET blends - rheological and structural properties The role of various modifiers in the compatibilisation of PP/PET blends - rheological and structural properties Role různých modifikátorů při kompatibilizaci PP/PET směsí - tokové a strukturní vlastnosti
skos:notation
RIV/70883521:28110/04:63502771!RIV/2005/MSM/281105/N
n3:strany
819-827
n3:aktivita
n15:Z
n3:aktivity
Z(MSM 265200015)
n3:cisloPeriodika
11-12
n3:dodaniDat
n12:2005
n3:domaciTvurceVysledku
n8:5474353 n8:3173402 n8:5141443
n3:druhVysledku
n9:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
585017
n3:idVysledku
RIV/70883521:28110/04:63502771
n3:jazykVysledku
n16:eng
n3:klicovaSlova
polypropylene; polyethylene terephthalate; blend; modifier; in situ compatibilisation; rheological properties; morphology
n3:klicoveSlovo
n5:blend n5:polypropylene n5:modifier n5:rheological%20properties n5:in%20situ%20compatibilisation n5:morphology n5:polyethylene%20terephthalate
n3:kodStatuVydavatele
PL - Polská republika
n3:kontrolniKodProRIV
[151D03521C2B]
n3:nazevZdroje
Polimery
n3:obor
n17:CD
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n12:2004
n3:tvurceVysledku
Kitano, Takeshi Hausnerová, Berenika Zdražilová, Natálie Sáha, Petr
n3:zamer
n14:MSM%20265200015
s:issn
0032-2725
s:numberOfPages
9
n18:organizacniJednotka
28110