FT-IR surface analysis of poly [(4-hydroxybenzoic)-ran-(2-hydroxy-6-naphthoic acid)] fiber – A short review

Magalhães, Rachel Farias; Barros, Alexandra Helena de; Takematsu, Marcia Murakoshi; Sanches, Natália Beck; Quagliano, Javier; Dutra, Rita de Cássia Lazzarini

doi:10.1016/j.polymertesting.2020.106750

Cited by 5 publications

(8 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The methodology error was around 13% and this high value can be assigned to the difficulty of the UATR in measuring the band in 743 cm -1 . This band intensity is weaker than in the transmission/Bunsen burner pyrolysis methodology due to the technical characteristics (Magalhães et al 2020, Ferrão 2001. Table IV.…”

Section: Epdm/br -Ft-ir/uatr/bunsen Burner Pyrolysis Analysismentioning

confidence: 91%

“…It was not possible to measure the band at 743 cm -1 of the sample with 10% BR, which indicates a limit of quantification for this BR content by this methodology. This may be due to differences in characteristics of reflection and transmission methodologies, because there is optical path variation in the first, and stronger bands in transmission spectra appear weaker in the reflection spectra (Magalhães et al 2020, Ferrão 2001.…”

Section: Epdm/br -Ft-ir/uatr/bunsen Burner Pyrolysis Analysismentioning

confidence: 99%

“…Other elastomeric systems can benefit from the developed FT-IR methodology, which could be valued for reverse engineering of thermal protections. As a future trend, It was highlighted that polymers recent studies by NIRA analysis, without chemometrics application, have been successfully carried out in cases where there are no overlapping bands (Magalhães et al 2020, Mello et al 2018). Therefore, it can be used in other polymers analysis, such as rubber blends.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Infrared quantification of binary rubber blends with overlapping bands

Barros

Murakami

Magalhães

et al. 2023

An. Acad. Bras. Ciênc.

View full text Add to dashboard Cite

Quantification of elastomer content for the ethylene-propylene diene monomer/polybutadiene blend are seldom subjects in the literature, mainly due to rubber compatibility problems. However, suitable blend contents can lead to desirable properties. Infrared spectroscopy can quantify this type of blend even if some bands overlap, which can be resolved with the proper choice of spectrum obtaining mode and non-overlapping analytical bands. This study evaluates the ethylene-propylene diene monomer/polybutadiene blend quantification by transmission, reflection and transflectance infrared. Even though all of the methodologies showed satisfactory results, transmission mode provided better accuracy. The methodology is simple and suited for the rubber industry. The sample with the higher BR content provided the best result.The band at 743 cm -1 is weak and results in even weaker absorptions when measuring samples with low BR content. On the other hand, the developed methodologies provided an accurate determination of low EPDM contents. For infrared spectroscopy researchers, these results not only encourage using different spectra obtaining modes application, including less conventional ones such as transflectance in the near infrared region for quantitative determination, it also contributes to a wide discussion of errors in the developed methodologies, which are also seldom discussed in publications.

show abstract

Section: Epdm/br -Ft-ir/uatr/bunsen Burner Pyrolysis Analysismentioning

confidence: 91%

Section: Epdm/br -Ft-ir/uatr/bunsen Burner Pyrolysis Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Infrared quantification of binary rubber blends with overlapping bands

Barros

Murakami

Magalhães

et al. 2023

An. Acad. Bras. Ciênc.

View full text Add to dashboard Cite

show abstract

“…Magalhães et al [60] discusses DRIFT mode regarding the sampling depth degree, and that it is not recommended to characterize chemically the surface of Vectran TM fibers, as it is not considered a selective mode for this purpose. According to the authors, other ways of obtaining spectra by reflection, such as ATR or universal attenuated total reflection (UATR), or obtaining spectra by photoacoustic spectroscopy (PAS) detection could be more appropriate to investigate surface treatment in fibers.…”

Section: Ft-irmentioning

confidence: 99%

“…A short review of Vectran TM fiber explored some conditions and modes of FT-IR in the fiber field. This study also brings concepts of different modes of acquisition of infrared spectra and discusses the sample depth degree according to the chosen mode, focused on the surface analysis by FT-IR techniques, such as ATR, UATR, DRIFT, NIR, NIRA (near-infrared reflectance analysis), FT-IR microscopy and PAS [60] . In addition, Vectran TM fibers are very important in aerospace and military fields because of their high mechanical performance, and these fibers are applied in FRP composites with epoxy matrix [73] .…”

Section: Ft-irmentioning

confidence: 99%

Analytical approaches to fiber-reinforced polymer composites: a short review

Takematsu,

Dutra

2023

Polímeros

Self Cite

View full text Add to dashboard Cite

A variety of fiber-reinforced polymer (FRP) has been described in literature, with a considerable subset of studies focused on fiber surface treatment (sizing), performance enhancement of matrix and fibers both synthetic and natural, and development of more ecologically sustainable composites. The present review discusses the different types of fibers and matrices and their applications, depending on the chemical and mechanical properties of their composites. In order to evaluate the performance of FRP composites and explore the characteristics of the involved materials, some analytical techniques are considered paramount, such as thermal analysis, microscopy, Fourier transform-infrared spectroscopy (FT-IR), and others. On this basis, this review addresses the state-of-the-art of material characterization methodologies, provides a comprehensive overview of different types of FRP found in literature, as well as links the analytical techniques with the main applications contributing to future studies and research in this area.

show abstract