The Use of the Spectrometric Technique FTIR-ATR to Examine the Polymers Surface

Keum, Sam‐Rok; Ma, So-Young; Roh, Se-Jung

doi:10.5772/48119

Cited by 32 publications

(34 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Further, SP exhibited several characteristic bands at 2972 and 2937 cm −1 arising from the CH 3 stretching vibration, 1563 cm −1 from asymmetric CO 2 stretching, and 645 cm −1 from CO 2 bending and asymmetric C―C―C stretching. The band observed at 507 cm −1 was assigned to in‐plane CO 2 rocking and symmetric C―C―C stretching . For the composite films, the intensities of the absorption bands at 1563, 645, and 507 cm −1 , which are related to CO 2 and C―C―C in SP, gradually increased with the SP content, as expected.…”

Section: Resultssupporting

confidence: 72%

Preparation and characterization of polypropylene/sodium propionate (PP/SP) composite films for bread packaging application

2018

View full text Add to dashboard Cite

To prolong the shelf life of bread, polypropylene/sodium propionate (PP/SP) composite films were prepared via a melt‐extrusion process. To investigate the feasibility of using PP/SP composite films as a bread packaging material, their chemical structure, morphology, mechanical properties, barrier properties against water, surface properties, and antimicrobial properties were investigated. A storage test for bread was also conducted. The mechanical and thermal stability of the PP/SP composite films enhanced with increasing SP content. Compared with pure PP, the PP/SP composites had increased hydrophilicity that increased with increasing SP content. These composite films showed enhanced antimicrobial activity against both Gram‐negative and Gram‐positive microorganisms. This was due to the interaction of SP and water originating from the bread, which modifies the pH of the bread and causes destruction of the cellular structures of fungi and also reduces the growth rate of bacteria. The enhanced thermal, mechanical, antifungal, and antimicrobial properties achieved by the addition of SP can be beneficial for maintaining the freshness of bread and prolonging its shelf life.

show abstract

Section: Resultssupporting

confidence: 72%

Preparation and characterization of polypropylene/sodium propionate (PP/SP) composite films for bread packaging application

2018

View full text Add to dashboard Cite

show abstract

“…The stretching vibration peaks of C=O in Fusabond ® E588 could be observed at 1712 cm -1 [27]. The obtained PP/OD/ZL composites exhibited characteristic peaks at the same positions as those observed for the PP/OD composite film without ZL [11,[28][29][30] , and in-plane rocking vibrations of -CH 3 at 717 cm -1 originating from the presence of OD species. Further, the characteristic peaks of ZL gradually increased with an increase in the ZL content of the composite films; the peaks shifted from 1066 to 1102 cm -1 and 800 to 810 cm -1 for T-O-T, from 544 to 538 cm -1 for the pentasil structure, and from 428 to 440 cm -1 for TO.…”

Section: Results and Discussion 41 Preparation Of The Pp/od/zl Compmentioning

confidence: 57%

Effect of porous zeolite on temperature-dependent physical properties of polypropylene/octadecane (PP/OD) composite films

Kim¹,

Thanakkasaranee²,

Seo³

et al. 2018

Express Polym. Lett.

View full text Add to dashboard Cite

Abstract. Polymeric materials with temperature-dependent gas permeabilities using a phase change material are designed and their applicability as a packaging system investigated. Polypropylene/octadecane/zeolite (PP/OD/ZL) composite films were prepared via extrusion process. ZL was used as a filler to enhance the dispersion and interfacial interaction between the OD and the PP originating from different flowabilities during the extrusion process. (FTIR) and (WAXD) analyses showed that the incorporation of ZL increased the interfacial interaction between PP and OD, resultantly enhancing the thermal stability, mechanical properties, and the oxygen transmittance rate and mechanical properties after contact with food simulants and thermal treatment. When the temperature was elevated from 10 to 30°C, oxygen and water vapor transmittance rate of the composite films increased sharply because of the influence of the OD content. It was surmised that temperaturedependent permeation jump caused by increasing of segmental mobility of OD phase and converting the crystalline structure to an amorphous one of OD phase in the composite films. However, the permeation jump in the composite films was weakened as the ZL content increased. These results are related to changes in the interfacial interaction and crystallinity in the composite films due to the addition of ZL.

show abstract

“…The bands present in PP spectrum confirms that the yarn is made of polypropylene (PP) 19,20 . Figure 8 shows the polymer DSC analysis results.…”

Section: Chemical Characterization Of the Pp Matrixmentioning

confidence: 64%

Manufacturing and Characterization of Jute/PP Thermoplastic Commingled Composite

et al. 2017

View full text Add to dashboard Cite

The commingled technology is a promising technique for the manufacture of composites reinforced with natural fibers. This study presents the development, processing and basic characterization of a long fiber Jute/Polypropylene (Jute/PP) commingled composite. The Jute/PP fabric was produced in a handloom and the composite was consolidated by compression molding. The PP matrix was chemically and thermally characterized to certify its chemical composition and define its melting and crystallization temperatures. The degradation behavior of jute fibers was also studied by Friedman's kinetic isoconversional model using thermogravimetric analyses (TGA). The mechanical properties of jute reinforcement and Jute/PP composite were characterized by tensile strength tests and by fractographic study of the fracture surfaces. Its tensile strength (44.62±6.02 MPa) and elasticity modulus (7.10±2.34 GPa) are approximate to the ones obtained by other processing techniques, suggesting that the developed commingled process can work as a low cost and practical alternative methodology for manufacturing of more sustainable composites in industries.

show abstract

The Use of the Spectrometric Technique FTIR-ATR to Examine the Polymers Surface

Cited by 32 publications

References 26 publications

Preparation and characterization of polypropylene/sodium propionate (PP/SP) composite films for bread packaging application

Preparation and characterization of polypropylene/sodium propionate (PP/SP) composite films for bread packaging application

Effect of porous zeolite on temperature-dependent physical properties of polypropylene/octadecane (PP/OD) composite films

Manufacturing and Characterization of Jute/PP Thermoplastic Commingled Composite

Contact Info

Product

Resources

About