Natural rubber as a renewable and sustainable bio-modifier for pavement applications: A review

Ansari, Anwaar Hazoor; Jakarni, Fauzan Mohd; Muniandy, Ratnasamy; Hassim, Salihudin; Elahi, Zafreen

doi:10.1016/j.jclepro.2020.125727

Cited by 54 publications

(19 citation statements)

References 79 publications

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“…As natural rubber-based products are often exposed to harsh environments, much has been done to develop flame-retardant materials by incorporating flame-retarding units into the polymer chains (in the polymer backbone or as side chains) or by adding flame retardants into the NR matrix by physical blending [ 81 ]. The pavement industry can be largely beneficiated from natural rubber, as it can be used as a bitumen modifier to prolong the lifespan of flexible pavements while aggregating environmental sustainability [ 82 ]. Finally, NR displays many properties that are compatible with the biomedical field, as in vitro biocompatibility, peptide- and angiogenesis-inducing activity for tissue repair, suitability for guided bone repair (useful for the regeneration of bones and teeth), as well as the ability to serve as a platform for the controlled delivery of active ingredients [ 75 ].…”

Section: It All Started With Natural Polymersmentioning

confidence: 99%

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Gandini

Lacerda

2021

Molecules

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A progressively increasing concern about the environmental impacts of the whole polymer industry has boosted the design of less aggressive technologies that allow for the maximum use of carbon atoms, and reduced dependence on the fossil platform. Progresses related to the former approach are mostly based on the concept of the circular economy, which aims at a thorough use of raw materials, from production to disposal. The latter, however, has been considered a priority nowadays, as short-term biological processes can efficiently provide a myriad of chemicals for the polymer industry. Polymers from renewable resources are widely established in research and technology facilities from all over the world, and a broader consolidation of such materials is expected in a near future. Herein, an up-to-date overview of the most recent and relevant contributions dedicated to the production of monomers and polymers from biomass is presented. We provide some basic issues related to the preparation of polymers from renewable resources to discuss ongoing strategies that can be used to achieve original polymers and systems thereof.

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Section: It All Started With Natural Polymersmentioning

confidence: 99%

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Gandini

Lacerda

2021

Molecules

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“…Due to its low cost and simultaneous above-average properties such as good mechanical strength, electrical insulation, water resistance, most salts and alkalis, natural rubber is widely used elastomer in various fields of industry [ 65 ]. It found its application in textiles, belts, coated fabrics, insulations, cables, bands, tires and many more [ 66 , 67 , 68 , 69 , 70 ]. To improve the technical and exploitation properties of NR-based vulcanizates such as tensile strength, barrier properties or thermal conductivities, natural or synthetic fillers and additives are often used [ 55 , 71 , 72 , 73 ].…”

Section: Introductionmentioning

confidence: 99%

Antioxidant and Anti–Aging Activity of Freeze–Dried Alcohol–Water Extracts from Common Nettle (Urtica dioica L.) and Peppermint (Mentha piperita L.) in Elastomer Vulcanizates

et al. 2022

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The research article aimed to examine the antioxidant nature of freeze–dried extracts from Urtica dioica L. and Mentha piperita L. and to present a deep characterization of their influence on the properties of natural rubber–based vulcanizates before and after simulated aging processes. Natural extracts were prepared in three solvent systems at selected volume ratios: water (100), methanol–water (50/50), ethanol–water (50/50), which were further lyophilized and used as additive to natural rubber mixtures. Freeze–dried materials were investigated by UV–VIS diffuse reflectance spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), thermal stability by thermogravimetric analysis (TGA). Antioxidant activity and total phenolic content (TPC) were also examined. Prepared samples were subjected to accelerated simulated degradation processes by using ultraviolet and thermo-oxidative aging. Vulcanizates resistance to degradation effects was determined by the study of cross-linking density (equilibrium swelling method), mechanical properties (tensile strength, elongation at break) and color change in comparison with the results of the reference samples. The research showed that analyzed extracts are characterized by a high content of polyphenols and antioxidant activity, thus have a protective influence on elastomer vulcanizates against damaging effects of aging processes, which consequently extends the lifetime of materials.

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“…Liquid Natural Rubber comes from rubber plantations. This rubber is in liquid form with a milky white colour and high ammonia content to maintain its fluid shape (Prastanto et al, 2018;Ansari et al, 2021). Modifying Liquid Natural Rubber into PVLNR is conducted by mixing natural rubber concentrate with liquid natural rubber dispensing chemical liquid.…”

Section: Introductionmentioning

confidence: 99%

The Rutting Resistance and Resilient Moduli of Pre-Vulcanized Liquid Natural Rubber Modified Asphaltic Concrete in Warm-Mix Temperature Condition

Irfan

Subagio

Hariyadi

et al. 2022

Journal of Civil Engineering and Management

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Pre-Vulcanized Liquid Natural Rubber (PVLNR) modified asphalt leaves problems such as increasing the viscosity, thereby increasing the mixing and compaction temperature up to 175 °C, accelerating the ageing process. Therefore it is necessary to do developing methods using PVLNR at lower mixing temperatures requires warm-mix technology. This study aimed to evaluate the use of PVLNR modified asphalt in warm mix asphalt (WMA). Laboratory testing includes rheological modified asphalt, the workability analysis, Resilient Modulus and Deformation. The results showed that the PVLNR content decreased penetration increased the softening point and asphalt viscosity. In addition, additive Rediset LQ plays a role in reducing asphalt viscosity. The advantages of PVLNR modified asphalt are increasing elastic recovery, saving asphalt consumption and increasing the Modulus of hot mix asphalt rubber (HAR) and warm mix asphalt rubber (WAR). In addition, the Rutting resistance of WAR is better than that of HMA and WMA.

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Natural rubber as a renewable and sustainable bio-modifier for pavement applications: A review

Cited by 54 publications

References 79 publications

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Antioxidant and Anti–Aging Activity of Freeze–Dried Alcohol–Water Extracts from Common Nettle (Urtica dioica L.) and Peppermint (Mentha piperita L.) in Elastomer Vulcanizates

The Rutting Resistance and Resilient Moduli of Pre-Vulcanized Liquid Natural Rubber Modified Asphaltic Concrete in Warm-Mix Temperature Condition

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