Octylamine regulating the mechanical robustness of natural rubber by involving in the construction of crosslinking network

Wei, Yinmao; Zhu, Ding; Zhang, Jing; Wang, Haoran; Zhou, Mengzhen; Liao, Shuangquan

doi:10.1016/j.ijbiomac.2023.126202

Cited by 2 publications

(2 citation statements)

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“…In contrast, the amorphous peak was still observed at 50%, 100%, and 200% strain in the WAXD pattern of PCL-DD, whereas the peaks corresponding to the PCL crystal only started to become evident at 200% strain (Figure 2i). This again suggested that the crystallization behavior of PCL was [53,54] and recent elastomers. [18,19,23,25,28,30,31,34,42,44,47,[55][56][57][58] limited owing to the less aggregated and more uniformly distributed clusters of hard segments.…”

Section: Resultsmentioning

confidence: 86%

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Regulation of Hard Segment Cluster Structures for High‐performance Poly(urethane‐urea) Elastomers

Qin,

Chen,

Guo

et al. 2024

Advanced Science

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Elastomers are widely used in daily life; however, the preparation of degradable and recyclable elastomers with high strength, high toughness, and excellent crack resistance remains a challenging task. In this report, a polycaprolactone‐based poly(urethane‐urea) elastomer is presented with excellent mechanical properties by optimizing the arrangement of hard segment clusters. It is found that long alkyl chains of the chain extenders lead to small and evenly distributed hard segment clusters, which is beneficial for improving mechanical properties. Together with the multiple hydrogen bond structure and stress‐induced crystallization, the obtained elastomer exhibits a high strength of 63.3 MPa, an excellent toughness of 431 MJ m−3 and an outstanding fracture energy of 489 kJ m−2, while maintaining good recyclability and degradability. It is believed that the obtained elastomer holds great promise in various application fields and it contributes to the development of a sustainable society.

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Section: Resultsmentioning

confidence: 86%

“… a) Tensile curves of intact and notched PCL‐DD elastomer. b) Fracture energy versus toughness of rubber composites [ 53 , 54 ] and recent elastomers. [ 18 , 19 , 23 , 25 , 28 , 30 , 31 , 34 , 42 , 44 , 47 , 55 , 56 , 57 , 58 ] c) Tensile curves of intact and recycled PCL‐DD elastomer.…”

Section: Resultsmentioning

confidence: 99%

Regulation of Hard Segment Cluster Structures for High‐performance Poly(urethane‐urea) Elastomers

Qin,

Chen,

Guo

et al. 2024

Advanced Science

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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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Octylamine regulating the mechanical robustness of natural rubber by involving in the construction of crosslinking network

Cited by 2 publications

References 50 publications

Regulation of Hard Segment Cluster Structures for High‐performance Poly(urethane‐urea) Elastomers

Regulation of Hard Segment Cluster Structures for High‐performance Poly(urethane‐urea) Elastomers

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

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