Effect of green synthesized zinc oxide nanoparticles as cure activator on the mechanical properties of natural rubber vulcanizate

Elemike, Elias E.; Ibeh, Felix C.; Ivwurie, Wisdom; Onwudiwe, Damian C.

doi:10.1007/s11696-023-03072-z

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…Therefore, researchers have explored intensively to reduce the amount of ZnO in rubber materials and find environmentally safe alternatives to ZnO. The main ones include other metal oxides, 8,9 nano‐sized ZnO, 10,11 zinc‐containing particles, 12,13 and amine‐containing complexes 14,15 . Bindu Panampilly et al 11 suggested that nano‐ZnO, when used as an activator, has an elevated specific surface area and reacts more readily with stearic acid and accelerator to form zinc‐accelerator complexes, accelerating the vulcanization process.…”

Section: Introductionmentioning

confidence: 99%

Use of ZIF‐8 as vulcanization additive to optimize natural rubber composites to lower the amount of ZnO

Yang,

Qiao,

Fan

et al. 2024

Vinyl Additive Technology

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Zinc oxide (ZnO) is widely used as an activator in the vulcanization process of natural rubber. However, due to its poor compatibility with natural rubber, a large amount of ZnO needs to use, and the unreacted ZnO can precipitate in various ways, posing significant harm to aquatic organisms and microorganisms. Therefore, it is necessary to reduce the dosage of ZnO in order to minimize its environmental impact. In this study, we applied ZIF‐8, a zinc‐based metal–organic framework, as a vulcanization additive in natural rubber. and it was found that ZIF‐8 could promote the rubber vulcanization reaction by adsorbing sulfur, promoting sulfur ring‐opening, and providing different ligand interactions of Zn2+. Moreover, even at low usage levels of ZIF‐8, it effectively reduces the amount of ZnO while simultaneously improving the mechanical properties of the samples. This work provides an effective method to reduce the amount of ZnO without sacrificing the rubber properties and provides a new idea for the application of ZIF‐8 in rubber materials.Highlights ZIF‐8 enhances properties of natural rubber composites with low ZnO dosages. Revealing the reason why ZIF‐8 promotes the vulcanization of natural rubber. Investigation of the effect of ZIF‐8 on the vulcanization properties of natural rubber.

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