Mechanism on surface hydrophobically modification of fibrous wollastonite and its reinforcement of natural rubber

Xiao, Yao; Hao, Yingjie; Yan, Lizhi; Xu, Zhenchun; Sui, Zhihua; Pan, Yi; Wang, Chuansheng; Bian, Huiguang; Wang, Xiaoming

doi:10.1007/s10965-022-03194-0

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…The ripening of the rubber compound was tested at a temperature of 150 ºC using Monsanto's Moving Die Rheometer (MDR 2000 Alpha Technologies) [21], according to ISO 3417: 2008. The test parameters were maximum torque (S' max), minimum torque (S' min), opt cure time (t 90 ), and scorch time (ts 2 ).…”

Section: Testing Methodsmentioning

confidence: 99%

Characterization of Natural Rubber, Styrene Butadiene Rubber, and Nitrile Butadiene Rubber Monomer Blend Composites Loaded with Zinc Stearate to Be Used in the Solid Tire Industry

Nasruddin¹,

Setianto²,

Yohanes³

et al. 2023

Applied Sciences

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Vulcanization is an important step in the manufacture of solid tires in which the crosslinking process occurs. In vulcanization, the materials commonly used as activators and coactivators are ZnO and stearic acid, respectively. In this research, ZnO and stearic acid were replaced with zinc stearate to improve the characteristics of vulcanized rubber. Zinc stearate was applied in four formulas with a composition of 5 to 9 phr. A formula that is often used in the rubber industry was used as a comparison, and ZnO and stearic acid of 5 phr and 2.5 phr, respectively, were applied. The rubber compound for solid tire production was developed using an open mill at a compounding temperature of 45 °C ± 5 °C. The vulcanization process of developing the rubber compound into vulcanized rubber was carried out at 150 °C for 20 min. Rubber compound test results showed that the use of zinc stearate at a ratio of 8 phr accelerated the curing time (t90) between 58.3% and 69%, the scorch time (ts2) between 22.4% and 95.5%, and the torque delta (Ds) between 17.67 and 24.21 kg-cm. In addition, the vulcanized rubber mechanical properties test results for the compression set parameter increased between 28.6% and 57.1%. Scan results with SEM–EDS showed that using ZS could improve the homogeneous distribution of the material in the vulcanized matrix of solid tire rubber.

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Section: Testing Methodsmentioning

confidence: 99%