Water solid interactions II. Effect of moisture sorption and glass transition temperature on compactibility of microcrystalline cellulose alone or in binary mixtures with polyvinyl pyrrolidone

1996 ◽  
Vol 134 (1-2) ◽  
pp. 79-88 ◽  
Author(s):  
L Stubberud
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Binary Mixtures ◽  
Microcrystalline Cellulose ◽  
Moisture Sorption ◽  
Polyvinyl Pyrrolidone ◽  
Effect Of Moisture

STUDY OF THE PLASTICIZING EFFECT OF MOISTURE ON THE PROPERTIES OF VSE-34 BINDER BASED PCMS AFTER 5 YEARS EXPOSURE IN THE DIFFERENT CLIMATE ZONES

2021 ◽  
pp. 105-116
Author(s):  
T.V. Koval ◽  
◽  
I.M. Veligodsky ◽  
A.A. Gromova ◽  
◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Composite Materials ◽  
Glass Transition Temperature ◽  
Moisture Content ◽  
Climate Zones ◽  
Climatic Regions ◽  
Moisture Influence ◽  
Effect Of Moisture ◽  
Regions Of Russia

The plasticizing effect of moisture on the glass transition temperature of VSE-34 solvent-free epoxy binder based polymer composite materials (PCMs) with different reinforcement was studied. Natural weathering was performed in three climatic regions of Russia: Moscow, Gelendzhik, Sochi. It was shown that the glass transition temperature is significantly reduced after 1 year of exposure and then is gradually increased after 3 and 5 years of exposure. Samples were studied in «as-received» state as well as after drying and saturation by water till mass stabilization in order to investigate the moisture influence on PCMs’ glass transition temperature. Linear relationship between glass transition temperature and moisture content was observed.

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