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Title:
Modifikacija PP/SAN mešanic
Authors:
ID
Radonjič, Gregor
(
Author
)
ID
Musil, Vojko
(
Author
)
Files:
http://www.dlib.si/details/URN:NBN:SI:doc-XZHRMFYX
Language:
Slovenian
Work type:
Not categorized
Typology:
1.08 - Published Scientific Conference Contribution
Organization:
EPF - Faculty of Business and Economics
Abstract:
Izotaktični polipropilen (PP) je med poliolefini eden od najpogosteje uporabljanih polimerov. Kopolimer stiren/akrilonitril ima nekatere dobre lastnosti , ki skupaj z lastnostmi PP omogočajo doseganje sinergističnih učinkov. Polimerna mešanica PP/SAN je nemešljiva in kaže določeno poslabšanje nekaterih mehanskih lastnosti, vendar pa se izboljšajo predelovalne in nekatere druge lastnosti. Na spremembe lastnosti PP/SAN mešanic lahko vplivamo tudi z dodatkom modifikatorja. Zaradi omenjenih dejstev smo se odločili za raziskave vplivov dodatka modifikatorja udarne žilavosti na mehanske lastnosti in morfologijo. Kot modifikator smo uporabili triblok kopolimer poli (stiren-b-etilen-co-butilen-b-stiren) (SEBS). Vzorce smo pripavili v talini v Brabenderjevem gnetilniku. Plošče smo stiskali z laboratorijsko stiskalnico in jih karakterizirali s torzijsko reometrijo, merjenjem udarne žilavosti in scanning elektronsko mikroskopijo. V prispevku predstavljamo in komentiramo rezultate predelovalnih, mehanskih in morfoloških lastnosti binarnih PP/SAN in ternarnih PP/SAN/SEBS mešanic.
Keywords:
polimerne mešanice
,
polipropilen
,
polimeri
Publisher:
Inštitut za kovinske materiale in tehnologije
Year of publishing:
1995
Number of pages:
str. 243-246
Numbering:
Letn. 29, št. 1/2
PID:
20.500.12556/DKUM-53370
UDC:
678
ISSN on article:
1318-0010
COBISS.SI-ID:
8417284
NUK URN:
URN:SI:UM:DK:SPW6HQOD
Publication date in DKUM:
10.07.2015
Views:
2136
Downloads:
59
Metadata:
Categories:
Misc.
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Record is a part of a journal
Title:
Kovine zlitine tehnologije
Shortened title:
Kovine zlit. tehnol.
Publisher:
Inštitut za kovinske materiale in tehnologije
ISSN:
1318-0010
COBISS.SI-ID:
31742209
Secondary language
Language:
Unknown
Title:
Modification of PP/SAN blends
Abstract:
Properties of isotactic polypropylene (PP) can be improved with the preparation of PP blends. Polymer blend PP/SAN is immiscible and it shows a decrease in some mechanical properties but processing and some other properties can be improved. Addition of an impact modifier can also change the final properties of the PP/SAN blends. As a modifier we used poly (styrene-b-ethylene-co-butylene-b-styrene) (SEBS) triblock copolymer. Blends were prepared in the melt in a Brabender kneading chamber, cooled and then compression-molded into sheets. We investigated the influence of the addition of SEBS on the processing properties (torque moment), mechanical properties (notched impact strength) as well as the morphological properties with scanning electron microscopy. In a paper we present and comment the results obtained from the analysis of the processing, mechanical and morphological properties of the binary PP/SAN blends and ternary PP/SAN/SEBS blends.
Keywords:
polymer blends
,
polypropylene
,
polymers
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