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Study on Reuse of Diphenyl Disulfide‐Devulcanized Natural Rubber from Truck Tires
Author(s) -
Saiwari Sitisaiyidah,
Waesateh Kamaruddin,
Lopattana Natinee,
Thititammawong Anoma,
Kaesaman Azizon
Publication year - 2015
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201400103
Subject(s) - truck , natural rubber , disulfide bond , reuse , materials science , composite material , chemical engineering , chemistry , waste management , engineering , automotive engineering , biochemistry
Summary The post‐consumer rubber in truck tires can be converted to a valuable raw material by de‐vulcanization. Natural rubber (NR) from used truck tires (UR) has been recycled by thermo‐chemical de‐vulcanization using DPDS as a de‐vulcanization aid. The de‐vulcanization efficiency is analyzed in term of the soluble fraction and the crosslink density of de‐vulcanizates (D‐UR). The D‐UR has significantly higher soluble fraction and lower crosslink density compared to those of original UR, indicating destruction of the rubber network by the de‐vulcanization. Blends of the D‐UR with virgin NR were also prepared at various blend ratios. D‐UR loading can be up to 40% with acceptable mechanical properties. The curing system and the compounding recipes for the blends were studied to achieve material properties having closely comparable to those achieved with virgin raw materials.