Investigating compatibility between TPU and bitumen SARA fractions by means of Hansen solubility parameters and interfacial tension measurements

Gallu, Raïssa; Méchin, Françoise; Dalmas, Florent; Gérard, Jean‐François; Perrin, Rémi; Loup, Frédéric

doi:10.1016/j.conbuildmat.2021.123151

Cited by 23 publications

(8 citation statements)

References 39 publications

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“…We refer the reader to the following selection of recent articles in which successful characterizations of MBCs have been obtained through microscopy 15,54,70,[109][110][111][112] and X-ray scattering techniques. 10,15,20,29,54,109,[112][113][114] We focus on some of them below.…”

Section: Direct Probesmentioning

confidence: 99%

“…(C) Broadband dielectric spectroscopy reveals the degree of phase separation in TPUs based on PPG SSs, adapted from. 41 (D) Hansen solubility parameters sphere diagrams indicating the compatibility of a polyol SS and a MDI/BDO HS with bitumen, adapted from Reference [114] crystallites, provoking their swelling. Papers by Gallu et al, 54,114,129 dealing with complex materials having industrial applications, well illustrate the need for both physical and chemical probes to access a global understanding of MBC based materials.…”

Section: Other Experimental Investigationsmentioning

confidence: 99%

“…41 (D) Hansen solubility parameters sphere diagrams indicating the compatibility of a polyol SS and a MDI/BDO HS with bitumen, adapted from Reference [114] crystallites, provoking their swelling. Papers by Gallu et al, 54,114,129 dealing with complex materials having industrial applications, well illustrate the need for both physical and chemical probes to access a global understanding of MBC based materials. In other words, they suggest that future progress in the field will necessarily pass by researchers endowed with a multidisciplinary background.…”

Section: Other Experimental Investigationsmentioning

confidence: 99%

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Recent advances on the structure–properties relationship of multiblock copolymers

Baeza

2021

Journal of Polymer Science

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Multiblock copolymers represent a fascinating class of materials that sits at the very heart of industrial applications and fundamental polymer science. They are most often made of a linear succession of incompatible “soft” and “hard” segments that microphase separate at room temperature while they can be easily re‐homogenized upon heating. This thermoreversible character provides them with decisive advantages with respect to other rubber‐based materials such as vulcanized elastomers, making them indispensable for the development of a more sustainable polymer industry. Beyond practical opportunities, tailoring the multiblock copolymers morphology has a pivotal role to play in the fundamental understanding of the structure–properties relationship of polymer‐based systems. It notably serves to comprehend complex materials such as semicrystalline homopolymers and nanocomposites. Aside from the thorough work developed on well‐defined diblock copolymers for half a century, this article review aims to guide the reader into the more intricate world of multiblock copolymers by providing him/her quantitative tools to connect chemical nature, microstructure and mechanical properties.

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Section: Direct Probesmentioning

confidence: 99%

Section: Other Experimental Investigationsmentioning

confidence: 99%

Section: Other Experimental Investigationsmentioning

confidence: 99%

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Recent advances on the structure–properties relationship of multiblock copolymers

Baeza

2021

Journal of Polymer Science

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“…The aim of this study is thus to evaluate the potential of 2,3-BDO as a chain extender in TPUs. The three different isomers of 2,3-BDO have thus been employed with a polyol based on dimers of fatty acids for the synthesis of biobased TPUs, which could be used in different fields, such as for building applications. ,, TPUs based on 2,3-BDO have been characterized and compared to similar materials prepared with 1,4-BDO and EG, revealing a very strong impact of the stereochemistry on the final macromolecular architectures and the corresponding properties.…”

Section: Introductionmentioning

confidence: 99%

2,3-Butanediol as a Biobased Chain Extender for Thermoplastic Polyurethanes: Influence of Stereochemistry on Macromolecular Architectures and Properties

et al. 2022

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2,3-Butanediol (2,3-BDO) is a short diol, easily bioproduced by different native bacteria from sugars or lignocellulosic biomasses at low cost. In this study, the potential of the different stereoisomers of 2,3-BDO as chain extenders in thermoplastic polyurethanes (TPUs) was evaluated for the first time. Several partially biobased TPUs were synthesized from a long biobased diol based on fatty acid dimers, 4,4′-methylene bis(phenyl isocyanate), and the different stereoisomers of 2,3-BDO as chain extenders. The stereochemistry of 2,3-BDO was found to have a dramatic influence on the structuration of the TPUs and consequently on their physical properties. The favorable orientation of the methyl side chains of the meso form of 2,3-BDO allows strong hydrogen bonding, leading to the formation of crystalline hard segments and to large-scale structuration into separated hard segment domains, leading to strong mechanical and thermomechanical properties. On the other hand, (+)-and (−)-2,3-BDO present an unfavorable orientation of the methyl groups that precludes crystallinity and leads to lower structuration and mechanical properties.

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“…On the other hand, thermoplastic polyurethane (TPU) is one of the modifiers that are insufficiently studied and there is not enough inspection and evaluation carried out concerning its applications in the asphalt industry [ 10 , 11 ]. TPU may be used to replace rubber, plastic and metal due to its light weight, low noise, corrosion resistance and high economic value, suggesting that TPU can be applied in many industries [ 12 , 13 ]. Moreover, TPU as a polymer modifier can improve the flexibility and strength of modified asphalt binder [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Effect of Thermoplastic Polyurethane (TPU) on Crumb Rubber Modified (CRM) Asphalt Binder

Yun

Mazumder

et al. 2022

Materials

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Crumb rubber binder with thermoplastic polyurethane (TPU) has been experimented with to characterize the performance properties considering the workability, rutting, fatigue cracking and cracking resistance at low temperatures depending on the temperatures and aging states. Physical and rheological properties were evaluated to proceed with the study by applying Superpave asphalt binder testing and multi-stress creep recovery (MSCR). Based on the targeted experiments, the binder samples were produced at three aging states (original, short-term aged and long-term aged) using a rolling thin film oven (RTFO) and pressure aging vessel (PAV). The results revealed that (i) the addition of TPU into CRM binders has a potential effect on increasing viscoelasticity at the original condition, (ii) CRM binders containing TPU showed improved anti-aging performance based on results of RTFO residues and (iii) the inclusion of TPU made it possible for CRM asphalt binder to improve its fatigue and cracking resistance at low temperature.

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Investigating compatibility between TPU and bitumen SARA fractions by means of Hansen solubility parameters and interfacial tension measurements

Cited by 23 publications

References 39 publications

Recent advances on the structure–properties relationship of multiblock copolymers

Recent advances on the structure–properties relationship of multiblock copolymers

2,3-Butanediol as a Biobased Chain Extender for Thermoplastic Polyurethanes: Influence of Stereochemistry on Macromolecular Architectures and Properties

Evaluation of Effect of Thermoplastic Polyurethane (TPU) on Crumb Rubber Modified (CRM) Asphalt Binder

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