Xanthate-modified silica as a novel multifunctional additive for properties improvement of natural rubber

Zhu, Kaizheng; Yu, Liu; Wang, Heliang; Guo, Xiwei; Liao, Shuangquan; Wang, Zhifen; Lin, Fang

doi:10.1016/j.compscitech.2020.108567

Cited by 22 publications

(6 citation statements)

References 43 publications

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“…This indicates that the addition of KH550 can significantly reduce the networking effect among HA particles. In addition, after adding M‐HA, the glass transition temperature ( T g ) of the adhesive film increased, because the crosslinking density increased 51 . As indicated in Figure 8c, the M‐HA/NRL vulcanized film possesses a higher storage modulus ( E ′), which may be due to the uniform dispersion of M‐HA in the rubber matrix.…”

Section: Resultsmentioning

confidence: 93%

Preparation of modified hydroxyapatite and its effect on natural latex film

Gong

Chen

et al. 2023

J of Applied Polymer Sci

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To effectively screen pathogens or eliminate allergy symptoms caused by the protein in natural latex products, the strength of the natural latex film must be improved and the water‐soluble protein content in the latex products must be reduced. In this article, response surface methodology was used to optimize the reaction conditions for the preparation of hydroxyapatite (HA), and the reinforcement and adsorption of water‐soluble proteins on natural rubber latex (NRL) by HA modified by coupling agent KH550 were studied. Modified HA was homogenously dispersed in the NRL, and the tensile and tear strengths of the rubber film were increased by 37.45% and 40.86%, respectively. In addition, modified HA adsorbs the water‐soluble protein from the latex film. Compared with pure NR film, its protein content is reduced by 50.79%. This article has a reference value for the preparation of high‐performance natural latex film with low protein content.

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Section: Resultsmentioning

confidence: 93%

Preparation of modified hydroxyapatite and its effect on natural latex film

Gong

Chen

et al. 2023

J of Applied Polymer Sci

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“…To highlight the importance of phase transfer agent to properties of crosslinked elastomers, we compare tensile strength, tear strength, and elongation at break among this work and the elastomers with different accelerators in Figure 4 c,d. The data of elastomers with different accelerators are from the previous works, containing N-cyclohexyl-2-benzothiazolesulfenamide (CZ) [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ], diphenyl guanidine (D) [ 49 , 50 ], dibenzothiazyl disulfide (DM) [ 51 , 52 , 53 , 54 , 55 , 56 , 57 ], 2-mercaptobenzothiazole (M) [ 2 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 ], N-tert-butylbenzothiazole-2-sulphenamide (NS) [ 30 , 66 , 67 , 68 , 69 , 70 , 71 ], and tetra methyl thiuram disulfide (TMTD) [ 30...…”

Section: Resultsmentioning

confidence: 99%

Toward Mechanically Robust Crosslinked Elastomers through Phase Transfer Agent Tuning the Solubility of Zn2+ in the Organic Phase

et al. 2022

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Zinc oxide (ZnO), which is toxic to aquatic organisms, is widely used as an activator in the rubber industry. The reduction of ZnO content is one of the efficient ways to tackle ecological environment impacts induced by ZnO. However, the incompatibility between Zn2+ and organic matrix inhibits the solubility and activity of Zn2+ in the organic matrix, causing the heavy use of ZnO. This work develops a phase transfer agent with Zn2+-philic structure and oleophilic structure to increase the solubility of Zn2+ in the organic matrix. The phase transfer agent and Zn2+ form coordination interactions, while the hydrophobic chains of phase transfer agent and organic matrix form hydrophobic interactions. The above two interactions improve the solubility and activity of Zn2+ in the organic matrix, contributing to the formation of crosslinking network. Through the phase transfer agent strategy, we obtain the mechanically robust elastomers, and the samples with low ZnO content still maintain the superior properties. This work provides an efficient way to reduce ZnO content without sacrificing the performance of elastomers.

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“…Figure 2a shows the FTIR spectra of the silica, PDA, and silica-PDA samples. For silica, the absorption band at 3443 cm À1 is attributed to the stretching vibration of the hydroxyl group ( OH), 27,28 while the strong absorption peaks at 1101 and 470 cm À1 are ascribed to the vibration of Si O. 29 For PDA, the absorption band at 3550-2780 cm À1 belongs to the stretching vibration of the phenolic hydroxyl and amine groups ( NH), while the absorption peak at 1616 cm À1 is attributed to the C C stretching vibration of the benzene ring; accordingly, the peaks at 1500 and 1190 cm À1 are the characteristic absorption peaks of NH and CN, 30 respectively.…”

Section: Characterizationmentioning

confidence: 99%

Antioxidating and reinforcing effect of polydopamine functionalized silica on natural rubber latex films

Xiong

Zhang

et al. 2023

J of Applied Polymer Sci

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Since the outbreak of COVID‐19, the demand for natural latex products with increased mechanical properties and aging resistance has surged. Based on the excellent adhesion and antioxidant properties of polydopamine (PDA), we employed a one‐pot method to modify the surface of silica substrates using PDA containing a polyphenol structure, to prepare a reinforced silica‐PDA composite latex material with antioxidant properties. As expected, the silica‐PDA composite achieved both uniform dispersion and good interfacial interactions with natural rubber latex (NRL). In addition, compared with common NRL/silica films, the mechanical properties of the NRL/silica‐PDA film were significantly improved; specifically, silica‐PDA can highly‐enhanced the mechanical property of NRL film from 24.94 to 32.18 MPa of tensile strength. Further, the antioxidant activity of the silica‐PDA film exceeded that of commercially available antioxidant D. Considering the notable performance boost of silica‐PDA composites on NRL films, we believe that the treatment of silica with natural polyphenols offers a convenient and facile new route for the preparation of environmentally friendly multifunctional silica additives.

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Xanthate-modified silica as a novel multifunctional additive for properties improvement of natural rubber

Cited by 22 publications

References 43 publications

Preparation of modified hydroxyapatite and its effect on natural latex film

Preparation of modified hydroxyapatite and its effect on natural latex film

Toward Mechanically Robust Crosslinked Elastomers through Phase Transfer Agent Tuning the Solubility of Zn2+ in the Organic Phase

Antioxidating and reinforcing effect of polydopamine functionalized silica on natural rubber latex films

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