Controlled Release of Metal Ion Cross-Linkers and Development of Self-Healable Epoxidized Natural Rubber

In this work, studies are carried out to understand the crosslinking reaction of epoxidized natural rubber (50 mol% epoxy, ENR-50) by metal ion namely ferric ion (Fe3+, FeCl3, ferric chloride). It is found that a small amount of FeCl3 can cure ENR to a considerable extent. A direct interaction of the ferric ion with the epoxy group as well as internal polymerization enable the ENR to be cured in an efficient manner. It was also found that with the increased concentration of FeCl3, the crosslinking density of the matrix increased and therefore, the ENR offers higher mechanical properties (i.e., modulus and tensile strength). In addition, the glass transition temperature (tg) of ENR vulcanizate is increased with increasing concentration of FeCl3. Moreover, the thermal degradation temperature (Td) of the ENR-FeCl3 compound was shifted toward higher temperature as increasing concentration FeCl3.

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Influence of compatibilizers on the rheological, mechanical, and morphological properties of epoxidized natural rubber/polypropylene thermoplastic vulcanizates

Journal of Applied Polymer Science ◽

10.1002/app.27233 ◽

2007 ◽

Vol 107 (4) ◽

pp. 2436-2443 ◽

Cited By ~ 22

Author(s):

A. Thitithammawong ◽

J. W. M. Noordermeer ◽

A. Kaesaman ◽

C. Nakason

Keyword(s):

Natural Rubber ◽

Epoxidized Natural Rubber ◽

Morphological Properties ◽

Thermoplastic Vulcanizates

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

10.1063/5.0000418 ◽

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

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

International Journal of Molecular Sciences ◽

10.3390/ijms22063150 ◽

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.

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