Plant Based Poly-functional Hindered Phenol Derivative as an Alternative for Silane in Cis-Polyisoprene and its Functionalized Derivative Systems Containing Nano-sized Particulates

Manoharan, Partheban; Naskar, Kinsuk

doi:10.1007/s10924-017-1036-z

Cited by 2 publications

(7 citation statements)

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“…On the other hand, the derivative curves also exhibit higher values at the beginning of the vulcanization. This is attributed to the significant improvement of HDS dispersion in TNR/ENR blends.The absence of Nano‐ZnO in the internal mixer apparently affect the T C90 and T S2 of the control compound as compared with our earlier study . These results provide clear evidence to Nano‐ZnO reacts with the silica surface in competition with TESPT.…”

Section: Resultssupporting

confidence: 59%

“…In our previous work, we demonstrated the detailed preparation and characterization of TNR . Figure A and B shows the vulcanization curves and derivative curves of the unfilled and filled rubber compounds.…”

Section: Resultsmentioning

confidence: 99%

“…These results are consistent with the superior dispersion of HDS in green composites (Z40, Z50, and Z60) achieved without the requirement of TESPT and process oil. In general NR and ENR, are vulnerable to heat/oxygen ageing of the unsaturated backbones, resulting in greatly deteriorated mechanical properties in the aged compound . Z40, Z50 and Z60 compounds show a marginal percentage change of the properties indicating a better heat ageing resistance compared with the control compound.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, ENR was used as a compatibilizer in organic filler filled NR composites wherein cure characteristics, tensile and dynamic mechanical properties were found to be improved Terpenoids (referred to interchangeably as terpenes) are sometimes called isoprenoids. Terpene occurs in all living organisms but attains their greatest structural and functional diversity in plants . In fact, terpene constitutes the largest and most diverse class of plant compounds .…”

Section: Introductionmentioning

confidence: 99%

“…In our recent studies, we prepared terpene phenolic resin functionalized natural rubber (TNR) aiming to improve the silica dispersion and, with that, the rubber reinforcement. We also demonstrated the aggregation assays to correlate the nano‐and macroscopic behaviors of TNR/ENR with silica interaction . Zinc oxide (ZnO) is known as the best activator for sulfur vulcanization.…”

Section: Introductionmentioning

confidence: 99%

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Eco‐friendly composites derived from naturally occurring molecules in promoting dispersion of nanosized silica particulates

Manoharan

Naskar

2018

Polymer Composites

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The reinforcement of highly dispersible silica (HDS) in Natural rubber was hindered by their high polarity and hydrophilic surface of the filler. We addressed this challenge by developing a Terpene phenolic resin functionalized Natural rubber (TNR) coupled with epoxidized natural rubber (ENR) composites. The loading of the HDS were considered from 40 to 60 phr (parts per hundred rubber). The uniform distribution of the HDS within the rubber blends in the absence of silane coupling agent and process oil was proven by cure characteristics, physico‐mechanical properties, air ageing, dynamic mechanical analyses, Payne effect, contact angle, DeMattia flexing, dielectric properties and transmission electron microscopy. Overall, these newly developed green composites are superior to that of the reference composite, using process oil and TESPT (Bis‐(triethoxysilylpropyl) tetrasulfide) as a coupling agent. Dispersion of HDS in rubber matrix may interfere with the addition of Zinc Oxide Nano particles (Nano‐ZnO) due to the alkali‐acidic reaction. Thus, this study explores the importance of omitting Nano‐ZnO during internal mixing stage but incorporation of the same with the curing additives on a two roll mill. Our findings open up a new avenue to a fundamental understanding of HDS interaction in the novel green composites. POLYM. COMPOS., 40:871–883, 2019. © 2018 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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