Determination of the photo-degradation level of high impact polystyrene (HIPS) using pyrolysis–gas chromatography–mass spectrometry

Parrés, F.; Sànchez-Nácher, Lourdes; Balart, Rafael; López, Juan

doi:10.1016/j.jaap.2006.08.001

Cited by 20 publications

(9 citation statements)

References 27 publications

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“…It is observed that HIPS undergoes a continuous decrease in tensile strength for up to 45 days of exposure, suggesting that the degradation process is conducted by chain scission. 40 Similar behavior has been observed in the literature 11 and was associated with the oxidative reactions that led to chain scission. All blends, regardless of whether they are compatibilized or not, show a tendency for reduction in tensile strength during the initial 15 days of exposure.…”

Section: Processing Of Blendssupporting

confidence: 81%

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

Luna

Siqueira

Araújo

et al. 2019

Journal of Elastomers & Plastics

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The aim of this study was to evaluate the photooxidative stability of polystyrene/vulcanized rubber waste blends, compatibilized with styrene–butadiene–styrene. High-impact polystyrene (HIPS) was used for comparison. All samples were exposed to ultraviolet (UV) radiation for 8 weeks and then analyzed for mechanical properties (tensile and impact), infrared spectroscopy, colorimetry, and optical microscopy. It was observed that the mechanical behavior of the photodegraded samples was a consequence of the superficial chemical modification, which was accompanied by defect formation. The most sensitive properties to aging were the impact strength and elongation at break, with HIPS being the least photostable material. The penetration depth of the UV radiation was lower for the core of the blends than for the HIPS. This finding indicated that the protective additives and mineral fillers (titanium dioxide and talc, respectively), which are present in the rubber residue, minimized the transmittance of radiation into the blends. Consequently, losses in the mechanical properties were minimized.

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Section: Processing Of Blendssupporting

confidence: 81%

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

Luna

Siqueira

Araújo

et al. 2019

Journal of Elastomers & Plastics

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“…In the present case the EPS may have suffered a certain thermal degradation and photodegradation associated with recovery, processing, or packaging (9,10) . Thus, it is particularly important to establish the levels of degradation accumulated in this material (11) . Figure 2 shows FTIR spectra of EPS, recycled EPS, and raw PS.…”

Section: Determination Of the Degradation Of The Recycled Epsmentioning

confidence: 99%

Recycling of Expanded Polystyrene from Packaging

Parrés

López

2010

Progress in Rubber, Plastics and Recycling Technology

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Expanded polystyrene (EPS) is a commonly used polymer in the packaging industry. The great importance of EPS recovery is related to the material's short service life and the high volume of EPS waste. The aim of the present work was to reduce the volume of waste by its mechanical milling and crushing and subsequent reintroduction into mass production. The results of thermal and infrared analysis indicate that the material does not degrade during the recovery process; indeed, the thermal properties of the recycled material are even better than those of the virgin product. Tensile tests showed that the recycled and virgin materials have similar mechanical behaviour. From the results obtained we can conclude that recycled polystyrene can replace virgin polystyrene in some industrial processing, thus reducing the cost of the fi nal product.

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“…As a result, enormous PS consumption from food packaging has led to a generation of huge amount of plastic waste. The treatment of this sort of waste has captured researchers' and industries attention during the last two decades, due to the need to reduce the environmental damage. In order to reduce the accumulation of plastics waste, one commonly being used practice is to recycle them.…”

Section: Introductionmentioning

confidence: 99%

Influence of biodegradable materials in the recycled polystyrene

Arrieta

Santiago

López

2014

J of Applied Polymer Sci

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Polystyrene (PS) is one of the commonly used polymer in food packaging, that is why it generates a large amount of residue PS: Due to the need of reduce environmental damage that occurs, it is common recycle this polymer.Recycling of PS may be affected by the introduction of biodegradable polymer in industrial food. For this reason we have studied the influence that generates small amounts of biodegradable polymer (PLA, PHB and TPS) in the recycled PS properties.The recycled PS and biodegradables polymers blends were evaluated by measuring the VST, MFI, FTIR and mechanical properties.

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Determination of the photo-degradation level of high impact polystyrene (HIPS) using pyrolysis–gas chromatography–mass spectrometry

Cited by 20 publications

References 27 publications

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

Recycling of Expanded Polystyrene from Packaging

Influence of biodegradable materials in the recycled polystyrene

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