Modeling of the destruction process of butyl rubber

Тихомиров, С. Г.; Polevoy, Pavel S.; Семенов, Михаил Е.; Karmanov, Andrey

doi:10.1016/j.radphyschem.2019.01.010

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…However, the above-mentioned techniques have some advantages and also disadvantages. The de-crosslinking of the butyl rubber has already been done by the researchers using some of the mentioned techniques, i.e., Polvoy et al, 14 Karmanova, 15 Liliane et al, 16 Khavarnia et al, 1 Kuan Jiang et al, 17 Tao Zhang el al., 5 Vagizova et al, 18 and Feng et al 19,20 They reclaimed the sulphur (vulcanized) and peroxide-cured butyl rubber.…”

Section: Introductionmentioning

confidence: 99%

The phenolic cured butyl rubber reclamation using different de-crosslinking agents

Miranian,

Ostad Movahed,

Ostad Movahed

2023

Progress in Rubber, Plastics and Recycling Technology

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The cured rubber-made bladder used for curing the green tire because, it is thermally stable, and has low gas permeability. The bladder is made with the cured butyl rubber as a base rubber under a phenolic curing system. To save the resources and also, the environmental protection, it should be de-crosslink to gum rubber. A commercial source waste bladder rubber compounded with different de-crosslinking agents, including TMTD, DPDS, DCBS, MBTS, MBT, and TBBS. To do de-crosslinking, the prepared compounds were heated in a laboratory heating oven at different temperatures. The de-crosslinking parameters including the sol fraction and de-crosslinking percent measured using traditional rubber swollen tests. The Fourier transform infrared spectroscopy (FTIR) graphs showed the existence of the phenolic resin in the structure of waste bladder butyl rubber powder. Efficient de-crosslinking was observed for all studied de-crosslinking agents. It evidenced by the scanning electron microscope micrographs and also, the measured crosslink densities of the reclaimed rubbers. The highest and the lowest de-crosslinking percents belonged to the compounds with 4 phr DPDS in recipe at 220 [Formula: see text] and 4 phr DCBS at 180 [Formula: see text], respectively. Based on the obtained de-crosslinking parameters, the DPDS was selected as a suitable de-crosslinking agent for used waste rubber. In accordance with Horikx analysis, the oven heating broke down the crosslinks and rubber main chains simultaneously. Increasing the oven temperature had a positive effect on de-crosslinking process with similar effects on the crosslink and main chain break down.

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Section: Introductionmentioning

confidence: 99%

The phenolic cured butyl rubber reclamation using different de-crosslinking agents

Miranian,

Ostad Movahed,

Ostad Movahed

2023

Progress in Rubber, Plastics and Recycling Technology

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Digital model of polymer molecules

Zaitsev

Семенов

Meleshenko

et al. 2021

J. Phys.: Conf. Ser.

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The article is devoted to the construction and analysis of a digital model of polymer molecules. In this regard, the pseudo-random value generator (the Mersenne Vortex) from the C++ library of the C++11 standard was investigated. A method for spatial modelling of a polymer chain with free and fixed valence angles is developed and described. A software for building polymer molecules with given parameters is implemented within C++. A program for visualization of polymer structures is implemented in C#. Fractal dimensions for polymer chains with different stochastic properties were calculated. The basis for the further development of the software for simulation of radiolysis of polymers has been introduced.

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