Synthesis and characterization of epoxidized neem oil: A bio‐derived natural processing aid for elastomer

Riya Koley; Rajkumar Kasilingam; Suchismita Sahoo; Santanu Chattopadhyay; Anil K. Bhowmick

doi:10.1002/app.50440

journal article Jan 06, 2021

Synthesis and characterization of epoxidized neem oil: A bio‐derived natural processing aid for elastomer

Riya Koley

Rajkumar Kasilingam

Suchismita Sahoo

Santanu Chattopadhyay

Anil K. Bhowmick

Journal of Applied Polymer Science Vol. 138 No. 20 · Wiley

View at Publisher Save 10.1002/app.50440

Abstract

AbstractLow cost and environment‐friendly bio‐oils are gaining market value as a plasticizer for elastomeric compounds. Unsaturated triglycerides of bio‐oils can be easily modified in various ways, like epoxidation, esterification, and so on. In the present work, 15 mole percentage of the total double bond content of the neem oil (NO) was epoxidized by acetic acid‐hydrogen peroxide system to synthesize epoxidized neem oil (ENO). NO and ENO were characterized by nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy and differential scanning calorimetry. The effect of ENO on the properties of nonpolar styrene butadiene rubber (SBR) and polar nitrile rubber (NBR) was investigated. Tear strength (69.9 N/mm), abrasion resistance index (ARI) (68.2) and hardness (64 shore A) of the SBR/ENO compound were comparable to the compound containing total distillate aromatic extract (TDAE) (values: 70.8 N/mm, 68.0 and 64 shore A respectively). Tensile strength and ARI of conventional NBR/dioctyl phthalate (DOP) compound were 24.9 MPa and 107 respectively, whereas NBR/ENO compound showed improved tensile strength (26.9 MPa), and ARI (138). Tear strength (83.4 N/mm) and hardness (74 shore A) of NBR/ENO were comparable to the tear strength (83.5 N/mm) and hardness (74 shore A) of NBR/DOP compound. Hence, the multifunctional additive property of ENO makes it a cheap and sustainable replacement of TDAE and DOP.

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References

Details

Published: Jan 06, 2021
Vol/Issue: 138(20)
License: View

Authors

R

Riya Koley

Rubber Technology Centre Indian Institute of Technology Kharagpur Kharagpur India

R

Rajkumar Kasilingam

Indian Rubber Manufacturers Research Association Thane West India

S

Suchismita Sahoo

Indian Rubber Manufacturers Research Association Thane West India

S

Santanu Chattopadhyay

Rubber Technology Centre Indian Institute of Technology Kharagpur Kharagpur India

A

Anil K. Bhowmick

Rubber Technology Centre Indian Institute of Technology Kharagpur Kharagpur India

Funding

Ministry of Human Resource Development Award: UAY‐IITKGP6‐HPN

Cite This Article

Riya Koley, Rajkumar Kasilingam, Suchismita Sahoo, et al. (2021). Synthesis and characterization of epoxidized neem oil: A bio‐derived natural processing aid for elastomer. Journal of Applied Polymer Science, 138(20). https://doi.org/10.1002/app.50440

Synthesis and characterization of epoxidized neem oil: A bio‐derived natural processing aid for elastomer

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