Morphology, mechanical and viscoelastic properties of nitrile rubber/epoxidized natural rubber blends

2005 ◽  
Vol 97 (4) ◽  
pp. 1561-1573 ◽  
Author(s):  
Asha Elizabeth Mathai ◽  
Sabu Thomas
Keyword(s):  
Natural Rubber ◽  
Viscoelastic Properties ◽  
Nitrile Rubber ◽  
Epoxidized Natural Rubber ◽  
Rubber Blends

scholarly journals Viscoelastic Properties of Epoxidized Natural Rubber/Poly(Lactic Acid) PLA/ENR Blends Containing Glycidyl-POSS and Trisilanolisooctyl-POSS as Functional Additives

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2686
Author(s):  
Magdalena Lipińska ◽  
Klaudia Toczek ◽  
Magdalena Stefaniak
Keyword(s):  
Lactic Acid ◽  
Natural Rubber ◽  
Viscoelastic Properties ◽  
Complex Viscosity ◽  
Epoxidized Natural Rubber ◽  
Poly Lactic Acid ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Rubber Blends ◽  
Functional Additives ◽  
Cross Links

The glycidyl-POSS (Polyhedral Oligomeric Silsesquioxanes, Polysilsesquioxane, POSS) (Gly-POSS) and trisilanolisooctyl-POSS (HO-POSS) were applied as functional additives influencing on the viscoelastic properties of the dynamic vulcanized PLA/ENR (poly(lactic acid)/epoxidized natural rubber) blends. The plasticizing effect of HO-POSS on PLA/ENR melt, leading to the decrease of complex viscosity at 160 °C, was observed. After the incorporation of Gly-POSS into PLA/ENR blends the complex viscosity increased confirming that the epoxy groups of Gly-POSS were able to react with the functional groups of ENR and the groups present at the end of PLA chains. The incorporation of Gly-POSS into 40:60 PLA/ENR blend provided significant enhancement of the storage shear modulus G’ at 30 °C. Furthermore, the glass transition temperatures Tg of ENR phase for PLA/ENR/Gly-POSS blends were shifted to higher values of temperature as compared with blends modified by HO-POSS. Strong reduction of the elongation at break Eb for 40:60 PLA/ENR/Gly-POSS blend indicated that Gly-POSS particles acted as multifunctional cross-links reducing elasticity of the material. The modification of 40:60 PLA/ENR blend by HO-POSS molecules led to lower values of composting coefficient KC indicating stronger deterioration of the mechanical properties that resulted from more intense degradation processes occurring during disposal in soil.

Natural rubber blends with epoxidized natural rubber

1997 ◽  
Vol 36 (5) ◽  
pp. 579-594 ◽  
Author(s):  
Sang Yup Lee ◽  
Joon Hyung Kim ◽  
Byung Kyu Kim
Keyword(s):  
Natural Rubber ◽  
Epoxidized Natural Rubber ◽  
Rubber Blends

Use of carboxylated nitrile rubber and natural rubber blends as retreading compound for OTR tires

2008 ◽  
Vol 48 (12) ◽  
pp. 2410-2417 ◽  
Author(s):  
Kaushik Pal ◽  
Tanya Das ◽  
Samir K. Pal ◽  
Chapal K. Das
Keyword(s):  
Natural Rubber ◽  
Nitrile Rubber ◽  
Rubber Blends
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