Influence of the chain extender of a segmented polyurethane on the properties of polyurethane-modified asphalt blends

Gallu, Raïssa; Méchin, Françoise; Gérard, Jean‐François; Dalmas, Florent

doi:10.1016/j.conbuildmat.2022.127061

Cited by 15 publications

(4 citation statements)

References 31 publications

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“…The excellent mechanical properties of polyurethane are attributed to their regulation of intermolecular hydrogen bonding, the crystallization of molecular segments and phase separation morphology. The results have verified that additives and molecular crosslinking structure have been considered as an effective way to improve the properties of polyurethane film 18–22 . As reported, the mechanical properties of aliphatic polyurethanes can be effectively improved by their denser H‐bonds formed from the uniform‐size hard segments (hexamethylene diisocyanate‐1,4‐Butanediol‐hexamethylene diisocyanate) 23–25 .…”

Section: Introductionsupporting

confidence: 69%

“…The results have verified that additives and molecular crosslinking structure have been considered as an effective way to improve the properties of polyurethane film. [18][19][20][21][22] As reported, the mechanical properties of aliphatic polyurethanes can be effectively improved by their denser H-bonds formed from the uniform-size hard segments (hexamethylene diisocyanate-1,4-Butanediol-hexamethylene diisocyanate). [23][24][25] Besides, the mechanical properties of polyurethane can be enhanced by molecular design at the expense of their sacrificial H-bonds.…”

Section: Introductionmentioning

confidence: 87%

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Preparation of laminated safety glass based on high strength polyurethane film by solution annealing

Ding

Zhan

Liu

et al. 2022

J of Applied Polymer Sci

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Compared with the traditional polyvinyl butyral (PVB) laminated glass, the polyurethane (PU) based laminated glass has the advantages of higher impact strength and longer service life. Thus, aromatic polyurethane films have attracted more attentions in recent years due to their high light transmittance, adhesion and functionality. In this paper, the tensile strength of polyurethane films based on bis(4‐isocyanatocyclohexyl)‐methane (HMDI) have been increased from 27 to 51 MPa and their elongation at break have been increased from 330% to 525% after solvent annealing in toluene. It is attributed to molecular segments with high crystallization and hydrogen bond formation of PU, which are confirmed by FT‐IR and XRD characterization. Based on this, laminated glasses with higher impact strength based on the thermoplastic polyurethane films are constructed successfully.

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Section: Introductionsupporting

confidence: 69%

Section: Introductionmentioning

confidence: 87%

Preparation of laminated safety glass based on high strength polyurethane film by solution annealing

Ding

Zhan

Liu

et al. 2022

J of Applied Polymer Sci

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“…Several asphalt modifiers have been used in recent years to enhance the properties of asphalt binders, including fibers, catalysts, natural and synthetic polymers, and extenders [12]. The selection of a suitable modifier depends on various elements, including geographic conditions, financial concerns, the manufacture of the modifier, and environmental compatibility [13]. In this respect, using recycled materials rather than raw ones eases the burden on landfills and lowers the need for mining.…”

Section: Introductionmentioning

confidence: 99%

Influence of Biomass-Modified Asphalt Binder on Rutting Resistance

Arabani,

Ebrahimi,

Shalchian

et al. 2024

Advances in Civil Engineering

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Biomasses are environmentally friendly additives that lower pollution in pavement engineering because of their biodegradability. On the other hand, to build a safe, long-lasting pavement, rutting prevention is crucial. This study provides a comprehensive review of the efficacy of biomass as recyclable materials in reducing rutting and enhancing characteristics of asphalt mixtures. According to findings, the hydrocarbon polymer properties of lignin and biomass ash improve asphalt binder consistency, hardness, and function at high temperatures. The results showed that biochar, due to its solid shape, enhances the stiffness and viscosity of the mixtures. The high-temperature performance of asphalt binder is improved by bioshell waste, which increases rutting parameters. Thus, biomass like ash, lignin, and biochar can increase asphalt binder rheology and rutting resistance due to chemical forces such as Van der Waals and hydrogen ions. The macroscopic and microscopic investigation also shows higher interaction and better adhesion in bioasphalt. However, asphalt binders containing bio-oil exhibited no unique behaviors due to their lubricant impact. Based on the estimation of the life cycle assessment (LCA), it was determined that biomass utilization has the potential to decrease the cost and CO2 emissions of pavement engineering by as much as 10% and more than three times, respectively. An examination of recyclability revealed that biomass utilization can decrease the requirement for additional stabilizers by as much as 20%.

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“…7,10,11 Due to the difference in the solubility parameters of hard and soft segments, two separated phases, a hard phase and a soft phase, arise at the nanoscale. 12,13 This unique phase-separated morphology endows TPEs with pleasing elastic resilience and melt processability. Moreover, the thermo-mechanical characteristics of TPEs can be finely customized by varying the mass ratio and molecular weight of the hard and soft segments.…”

Section: Introductionmentioning

confidence: 99%

Flexible preparation of PA6-based thermoplastic elastomer filaments with enhanced elasticity, melt spinnability and transparency enabled by high-molecular-weight soft segments

Liu,

Zhao,

Liu

et al. 2023

Polym. Chem.

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Influence of the chain extender of a segmented polyurethane on the properties of polyurethane-modified asphalt blends

Cited by 15 publications

References 31 publications

Preparation of laminated safety glass based on high strength polyurethane film by solution annealing

Preparation of laminated safety glass based on high strength polyurethane film by solution annealing

Influence of Biomass-Modified Asphalt Binder on Rutting Resistance

Flexible preparation of PA6-based thermoplastic elastomer filaments with enhanced elasticity, melt spinnability and transparency enabled by high-molecular-weight soft segments

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