Effect of waste zinc oxide particles on properties of natural rubber vulcanizates

Natural rubber (NR) vulcanizates with waste zinc oxide (ZnO) particles were prepared through a sulfur vulcanization process. This research aimed to investigate the effect of different ZnO sources as an activator: commercial ZnO (ZO), waste ZnO obtained from a ceramic industry (WZO), and calcinated W...

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Main Authors: Dusadee Tumnantong, Pattarapan Prasassarakich, Sirilux Poompradub
Format: Article
Language:English
Published: Budapest University of Technology and Economics 2023-03-01
Series:eXPRESS Polymer Letters
Subjects:
Online Access:http://www.expresspolymlett.com/letolt.php?file=EPL-0012235&mi=cd
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author Dusadee Tumnantong
Pattarapan Prasassarakich
Sirilux Poompradub
author_facet Dusadee Tumnantong
Pattarapan Prasassarakich
Sirilux Poompradub
author_sort Dusadee Tumnantong
collection DOAJ
description Natural rubber (NR) vulcanizates with waste zinc oxide (ZnO) particles were prepared through a sulfur vulcanization process. This research aimed to investigate the effect of different ZnO sources as an activator: commercial ZnO (ZO), waste ZnO obtained from a ceramic industry (WZO), and calcinated WZO (C-WZO) on the properties of NR vulcanizates. The ZnO particles were characterized using X-ray fluorescence spectrometer, X-ray diffractometer, and transmission electron microscopy. It was found that the calcination at 800 °C for 6 h could reduce the sulfur components in WZO; consequently, the particle size and appearance were changed. For rubber vulcanizates, the composition of ZnO in the activator had an effect on the crosslink density of the obtained vulcanizates, resulting in changes to the mechanical tensile, thermal, and dynamic mechanical properties. The crosslink density, tensile strength, and tear strength of the rubber vulcanizate filled with C-WZO (NR/C-WZO (II), 0.18 mmol/cm3, 21.3 MPa, 68.4 N/mm, respectively) was acceptable for rubber products compared with those of the vulcanizate filled with ZO (NR/ZO, 0.19 mmol/cm3, 26.4 MPa, 71.6 N/mm, respectively). Accordingly, C-WZO could be used as an effective activator in rubber vulcanization.
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spelling doaj-art-4ef753f1ddbc4529af93e7d0c87675ad2025-08-20T02:54:58ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2023-03-0117329029910.3144/expresspolymlett.2023.21Effect of waste zinc oxide particles on properties of natural rubber vulcanizatesDusadee TumnantongPattarapan PrasassarakichSirilux PoompradubNatural rubber (NR) vulcanizates with waste zinc oxide (ZnO) particles were prepared through a sulfur vulcanization process. This research aimed to investigate the effect of different ZnO sources as an activator: commercial ZnO (ZO), waste ZnO obtained from a ceramic industry (WZO), and calcinated WZO (C-WZO) on the properties of NR vulcanizates. The ZnO particles were characterized using X-ray fluorescence spectrometer, X-ray diffractometer, and transmission electron microscopy. It was found that the calcination at 800 °C for 6 h could reduce the sulfur components in WZO; consequently, the particle size and appearance were changed. For rubber vulcanizates, the composition of ZnO in the activator had an effect on the crosslink density of the obtained vulcanizates, resulting in changes to the mechanical tensile, thermal, and dynamic mechanical properties. The crosslink density, tensile strength, and tear strength of the rubber vulcanizate filled with C-WZO (NR/C-WZO (II), 0.18 mmol/cm3, 21.3 MPa, 68.4 N/mm, respectively) was acceptable for rubber products compared with those of the vulcanizate filled with ZO (NR/ZO, 0.19 mmol/cm3, 26.4 MPa, 71.6 N/mm, respectively). Accordingly, C-WZO could be used as an effective activator in rubber vulcanization.http://www.expresspolymlett.com/letolt.php?file=EPL-0012235&mi=cdrubbermechanical propertiesthermal propertieszinc oxidevulcanization
spellingShingle Dusadee Tumnantong
Pattarapan Prasassarakich
Sirilux Poompradub
Effect of waste zinc oxide particles on properties of natural rubber vulcanizates
eXPRESS Polymer Letters
rubber
mechanical properties
thermal properties
zinc oxide
vulcanization
title Effect of waste zinc oxide particles on properties of natural rubber vulcanizates
title_full Effect of waste zinc oxide particles on properties of natural rubber vulcanizates
title_fullStr Effect of waste zinc oxide particles on properties of natural rubber vulcanizates
title_full_unstemmed Effect of waste zinc oxide particles on properties of natural rubber vulcanizates
title_short Effect of waste zinc oxide particles on properties of natural rubber vulcanizates
title_sort effect of waste zinc oxide particles on properties of natural rubber vulcanizates
topic rubber
mechanical properties
thermal properties
zinc oxide
vulcanization
url http://www.expresspolymlett.com/letolt.php?file=EPL-0012235&mi=cd
work_keys_str_mv AT dusadeetumnantong effectofwastezincoxideparticlesonpropertiesofnaturalrubbervulcanizates
AT pattarapanprasassarakich effectofwastezincoxideparticlesonpropertiesofnaturalrubbervulcanizates
AT siriluxpoompradub effectofwastezincoxideparticlesonpropertiesofnaturalrubbervulcanizates