Environmental Impact of Natural Polymers

Brostow, Witold; Datashvili, Tea

doi:10.1007/978-3-319-26414-1_10

Cited by 8 publications

(5 citation statements)

References 57 publications

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“…According to the literature, the infrared spectra indicates that the boiling treatment lead to the formation of pseudo‐boehmite. The relatively strong and partially asymmetric absorption band at 3000–3600 cm −1 was attributed to the O–H stretching of the hydroxyl of fragments of physisorbed water . The sharp peak at 1078 cm −1 was attributed to the Al–O stretching of the AlO(OH) structure and is therefore characteristic of the presence of pseudo‐boehmite .…”

Section: Resultsmentioning

confidence: 99%

Effect of the surface chemical treatment on the properties of a sol–gel film on AA1050

Deflorian

Fedel

2015

Surface & Interface Analysis

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Silane sol-gel coatings have been widely studied as a potential strategy to protect aluminium and aluminium alloys components and were proved to be suitable both as a chemical conversion treatment alone and as a coupling agent between the underling substrate and an organic coating. Compared with many aluminium alloys, only little investigation was carried out on the application of sol-gel coatings on AA1XXX. Despite pure aluminium shows lower mechanical resistance with respect to aluminium alloys, however, the high thermal conductivity makes it suitable in a huge variety of applications, such as heat exchanger constructions as well as cooling systems. The present work is devoted to the study of the effect of the surface chemical pretreatment on the structural and corrosion protection properties of a hybrid sol-gel film. Different surface chemical treatments of the 1050 aluminium alloy prior sol-gel deposition were tested: alkaline etch, acidic passivation and boiling water immersion (to promote the formation of pseudo-boehmite). Films of 1 :1 molar ratio of GLYMO : MTES were obtained on AA1050 from a 5wt% solution in acidified water. The effect of the chemical surface treatment on the AA1050 substrate was investigated both in terms of morphology by means of scanning electron microscopy and in terms of surface chemistry by means of Fourier Transform Infrared Spectroscopy (FT-IR) exploiting attenuated total reflectance (ATR) geometry. The structure and the chemical properties of the different coatings were investigated by means of FT-IR. The characterization of the different protective coatings was carried out by means of electrochemical impedance spectroscopy measurements and potentiodynamic curves.

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Section: Resultsmentioning

confidence: 99%

Effect of the surface chemical treatment on the properties of a sol–gel film on AA1050

Deflorian

Fedel

2015

Surface & Interface Analysis

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“…For instance, sol–gel derived inorganic nanonetworks can be incorporated into polymers . In dealing with multiphase materials it is important to keep in mind that their properties are strongly dependent on the interfaces …”

Section: Resultsmentioning

confidence: 99%

Porous crosslinked copolymers of octadecyl acrylate with acrylic acid as sorbers for crude petroleum spills

Atta

Brostow

Lobland

et al. 2013

Polymer International

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Bulk and suspension polymerization were used to prepare octadecyl acrylate/acrylic acid (ODA/AA) copolymers. AA content ranged from 0 to 90 mol%. Divinyl benzene was used as a crosslinker at several concentrations (1, 4 and 10 wt%). Isopropyl alcohol or dioctyl phthalate and methyl benzoate were used as the reaction solvents in the presence of poly(vinyl alcohol) as a dispersing agent and 2,2-azobis isobutyronitrile as the initiator. The polymers so prepared were coated onto poly(ethylene terephthalate) nonwoven (NWPET) fibers. The effects of copolymerization, feed composition, crosslinker concentration and reaction medium or solvent on morphology including porosity and the dynamic mechanical and swelling properties of the crosslinked polymers were determined. Swelling tests were performed in toluene and in 10% crude petroleum diluted with toluene. Bulk polymerization does not result in the formation of a continuous liquid absorbing material while suspension polymerization enables sorbers to be obtained with desired properties. Coating ODA/AA copolymers onto NWPET increases liquid absorption.

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“…The addition of trichome fibers into the fibrous structure might develop the flushability performance of nonwovens [54]. Polybutylene succinate (PBS), which is an aliphatic polyester, and polyhydroxyalkanoates (PHAs), which are polyesters produced by bacterial fermentation, are biodegradable polymers used in flushable products [55,56]. Nodax TM is one of the examples of biodegradable PHA copolymers, which may be utilized for flushables [1,57,58].…”

Section: Production Methods Of Flushable Wipesmentioning

confidence: 99%

Advancement in flushable wipes: Modern technologies and characterization

Atasağun

Bhat

2018

Journal of Industrial Textiles

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Flushable wipes, which can be completely disintegrated and dispersed into sewage systems, are some of the disposable nonwoven products. Due to its ease of use, hygiene, efficiency, and consumers' environmental perception, flushable wipe market is growing rapidly. A truly flushable wipe should be biodegradable, dispersible, and compatible with water treatment systems. Flushable wipes can be produced by selecting appropriate materials and production technologies. Assessing the flushability performance of these products is quite important with regard to the environmental pollution. This review includes fibers and substrates, web forming and bonding technologies, which are used for making a truly flushable wipe. In addition, the test methods used for measuring flushability performance and standardization studies of the flushability tests are presented in this study, as well as the effect of wet wipes on the environment.

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Environmental Impact of Natural Polymers

Cited by 8 publications

References 57 publications

Effect of the surface chemical treatment on the properties of a sol–gel film on AA1050

Effect of the surface chemical treatment on the properties of a sol–gel film on AA1050

Porous crosslinked copolymers of octadecyl acrylate with acrylic acid as sorbers for crude petroleum spills

Advancement in flushable wipes: Modern technologies and characterization

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