Effect of reinforcement on the barrier and dielectric properties of epoxidized natural rubber-graphene nanocomposites

2015 ◽  
Vol 55 (11) ◽  
pp. 2439-2447 ◽  
Author(s):  
Srinivasarao Yaragalla ◽  
C. Sarath Chandran ◽  
Nandakumar Kalarikkal ◽  
R.H.Y. Subban ◽  
Chin Han Chan ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Natural Rubber ◽  
Epoxidized Natural Rubber ◽  
Graphene Nanocomposites

Dielectric and Curing Properties of ZnFe2O4 Loaded Epoxidized Natural Rubber (ENR 25)

2020 ◽  
Vol 1010 ◽  
pp. 292-297
Author(s):  
Suziey Syamimi Sukri ◽  
Syifa' Muhamad Sharifuddin ◽  
Mohd Shukri Mat Nor ◽  
Fathin Asila Mohd Pabli ◽  
Piyawadee Luangchuang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Magnetic Properties ◽  
Dielectric Properties ◽  
Dielectric Loss ◽  
Natural Rubber ◽  
Electronic Device ◽  
Epoxidized Natural Rubber ◽  
Cure Time ◽  
Device Applications

Electroceramic with high magnetic properties such as ZnFe2O4 is widely used in many electronic device applications. One of the major drawbacks of electroceramic is the difficulty in molding and processing into desired shapes due to its brittle nature. Flexible electroceramic with the superior process and mold abilities can be made by mixing magnetic ceramic with a flexible matrix, for instance, rubber. In this present study, the aims were to produce ZnFe2O4 loaded epoxidized natural rubber (ENR 25) as well as to determine its electrical and curing properties. The magnetic ceramic of ZnFe2O4 was blended with ENR 25 at different loadings varying from 0 to 120 parts per hundred of rubber (phr) in an interval of 20. The properties of produced composites include scorch time, cure time, torque and dielectric properties were characterised. The results demonstrated that the increase of ZnFe2O4 concentration in ENR 25 leads to a significant increase in the dielectric constant from 4.94 to 5.62 at 1.15 MHz, and decrease in the dielectric loss curves of the composites start from 0.0827 to 0.0586. Furthermore, the results of curing property studies exhibited an increasing pattern of the composite torques, starting from 1.43 to 1.76 dN.m.

Co-Continuous Phase Structure and Properties of Poly(vinylidene Fluoride)/Epoxidized Natural Rubber Blends

2012 ◽  
Vol 626 ◽  
pp. 71-74 ◽  
Author(s):  
Subhan Salaeh ◽  
Charoen Nakason ◽  
Gisèle Boiteux ◽  
Philippe Cassagnau
Keyword(s):  
Dielectric Properties ◽  
Natural Rubber ◽  
Phase Structure ◽  
Vinylidene Fluoride ◽  
Grain Morphology ◽  
Continuous Phase ◽  
Epoxidized Natural Rubber ◽  
Morphological Properties ◽  
Blending Method ◽  
Poly Vinylidene Fluoride

Thermoplastic elastomer based on poly (vinylidene fluoride) (PVDF) and epoxidized natural rubber (ENR) blends at 50/50 by weight with different type of ENR (i.e., ENR with 25 and 50 mol% epoxide which are called as ENR-25 and ENR-50, respectively) has been prepared by melt blending method. Difference content of epoxide groups in ENR molecules on dynamic mechanical properties, dielectric properties and morphological properties of blends were investigated. The morphology reveals the co-continuous phase structure of PVDF and ENR phases. Furthermore, ENR-50/PVDF blend showed finer grain morphology and the glass transition (Tg) of the rubber phase was shifted to lower temperature. The structure of the blends correlated well with permittivity (ε) in dielectric properties with the permittivity of PVDF/ENR-50 higher than that of PVDF/ENR-25.

Preparation coated of urea beads from banana peel bioplastic and epoxidized natural rubber 50

2020 ◽  
Author(s):  
H. K. Abdulkadir ◽  
S. A. Abdul Shukor ◽  
R. Hamzah ◽  
N. Z. Noriman ◽  
Omar S. Dahham ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Epoxidized Natural Rubber ◽  
Banana Peel

scholarly journals Biocomposites of Epoxidized Natural Rubber/Poly(lactic acid) Modified with Natural Fillers (Part I)

2021 ◽  
Vol 22 (6) ◽  
pp. 3150
Author(s):  
Anna Masek ◽  
Stefan Cichosz ◽  
Małgorzata Piotrowska
Keyword(s):  
Tensile Strength ◽  
Lactic Acid ◽  
Natural Rubber ◽  
Epoxidized Natural Rubber ◽  
Poly Lactic Acid ◽  
Uv Aging ◽  
High Elasticity ◽  
Natural Fillers ◽  
Natural Additives

The study aimed to prepare sustainable and degradable elastic blends of epoxidized natural rubber (ENR) with poly(lactic acid) (PLA) that were reinforced with flax fiber (FF) and montmorillonite (MMT), simultaneously filling the gap in the literature regarding the PLA-containing polymer blends filled with natural additives. The performed study reveals that FF incorporation into ENR/PLA blend may cause a significant improvement in tensile strength from (10 ± 1) MPa for the reference material to (19 ± 2) MPa for the fibers-filled blend. Additionally, it was found that MMT employment in the role of the filler might contribute to ENR/PLA plasticization and considerably promote the blend elongation up to 600%. This proves the successful creation of the unique and eco-friendly PLA-containing polymer blend exhibiting high elasticity. Moreover, thanks to the performed accelerated thermo-oxidative and ultraviolet (UV) aging, it was established that MMT incorporation may delay the degradation of ENR/PLA blends under the abovementioned conditions. Additionally, mold tests revealed that plant-derived fiber addition might highly enhance the ENR/PLA blend’s biodeterioration potential enabling faster and more efficient growth of microorganisms. Therefore, materials presented in this research may become competitive and eco-friendly alternatives to commonly utilized petro-based polymeric products.

Epoxidized Natural Rubber Compounds: Effect of Vulcanization Systems and Fillers

1998 ◽  
Vol 37 (4) ◽  
pp. 469-481 ◽  
Author(s):  
HANAFI ISMAIL ◽  
U. S. ISHIAKU ◽  
A. R. ARINAB ◽  
Z. A. MOHD ISHAK
Keyword(s):  
Natural Rubber ◽  
Epoxidized Natural Rubber ◽  
Rubber Compounds
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