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Synthesis of sonochemical chloroacetated natural rubber and its potential use in passenger car tire tread
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Document Title
Synthesis of sonochemical chloroacetated natural rubber and its potential use in passenger car tire tread
Author
Senakham T. Thaptong P. Sae-Oui P. Boopasiri S. Amnuaypanich S. Siriwong C.
Affiliations
Materials Chemistry Research Center Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand; MTEC National Science and Technology Development Agency (NSTDA) 111 Thailand Science Park Phahonyothin Road Khlong Nueng Khlong Luang Pathum Thani12120 Thailand
Type
Article
Source Title
Arabian Journal of Chemistry
ISSN
18785352
Year
2023
Volume
16
Issue
12
Open Access
All Open Access Gold
Publisher
Elsevier B.V.
DOI
10.1016/j.arabjc.2023.105299
Abstract
This article describes the preparation of chloroacetated natural rubber (CNR) through the epoxidation of natural rubber (NR) latex with performic acid followed by the reaction with chloroacetic acid. Ultrasound waves were utilized to accelerate the epoxidation reaction. The CNR samples obtained at various epoxidation durations were analyzed by Fourier transform infrared spectroscopy nuclear magnetic resonance spectroscopy gel permeation chromatography and differential scanning calorimetry techniques. Results showed that the chloroacetate content in CNR increased with increasing epoxidation time i.e. the chloroacetate contents were 17.4 18.5 and 19.7% at epoxidation times of 30 45 and 60 min respectively. The prepared CNR samples were then employed to replace NR in silica-filled tire tread compounds based on a 70/30 solution styrene butadiene rubber (SSBR)/NR blend. It was found that compared with NR CNR provided significantly higher rubber-silica interaction leading to improved mechanical and dynamic properties. Such replacement not only reduced heat build-up and rolling resistance but also increased the wet grip index which is highly beneficial for the production of high-performance passenger car tires. It could be observed that the improvements in rubber properties and tread performance were more obvious when the chloroacetate content of CNR was increased probably due to the enhanced rubber-filler interaction as demonstrated by the increased bound rubber content. ? 2023 The Author(s)
Keyword
Chloroacetated natural rubber | Natural rubber | Tire | Tread | Ultrasound
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
License
CC BY-NC-ND
Rights
Authors
Publication Source
Scopus