The Use of Cashew Nut Shell Liquid (CNSL) in PP/HIPS Blends: Morphological, Thermal, Mechanical and Rheological Properties
Polypropylene (PP) and high impact polystyrene (HIPS) are two polymers that are frequently found in disposable waste. Both of these polymers are restricted from being separated in several ways. An easier way to reuse them in new applications, without the need for separation, would require them to be...
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| Veröffentlicht in: | Materials 2019-06, Vol.12 (12), p.1904 |
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| creator | Araújo, Mirna Nunes Visconte, Leila Lea Yuan Barreto, Daniel Weingart Escócio, Viviane Alves Silva, Ana Lucia Nazareth da Sousa, Ana Maria Furtado de Pacheco, Elen Beatriz Acordi Vasques |
| description | Polypropylene (PP) and high impact polystyrene (HIPS) are two polymers that are frequently found in disposable waste. Both of these polymers are restricted from being separated in several ways. An easier way to reuse them in new applications, without the need for separation, would require them to be less immiscible. In this work, cashew nut shell liquid (CNSL), a sub-product of the cashew agroindustry, was added as a third component to PP-HIPS mixtures and its effect as a compatibilizing agent was investigated. Morphological results showed that CNSL acted as an emulsifier by promoting reduction in the domains of the dispersive phase, HIPS, thus stabilizing the blends morphology. Differential scanning calorimetry (DSC) analysis suggests that CNSL is preferably incorporated in the HIPS phase. Its plasticizing effect leads to more flexible materials, but no significant effect could be detected on impact resistance or elongation at break. |
| doi_str_mv | 10.3390/ma12121904 |
| format | Article |
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Both of these polymers are restricted from being separated in several ways. An easier way to reuse them in new applications, without the need for separation, would require them to be less immiscible. In this work, cashew nut shell liquid (CNSL), a sub-product of the cashew agroindustry, was added as a third component to PP-HIPS mixtures and its effect as a compatibilizing agent was investigated. Morphological results showed that CNSL acted as an emulsifier by promoting reduction in the domains of the dispersive phase, HIPS, thus stabilizing the blends morphology. Differential scanning calorimetry (DSC) analysis suggests that CNSL is preferably incorporated in the HIPS phase. Its plasticizing effect leads to more flexible materials, but no significant effect could be detected on impact resistance or elongation at break.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma12121904</identifier><identifier>PMID: 31200462</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Consumption ; Domains ; Elongation ; Impact resistance ; Morphology ; Nitrogen ; Polyethylene terephthalate ; Polymer blends ; Polymers ; Polystyrene resins ; Radiation ; Rheological properties ; Rheology ; Waste disposal</subject><ispartof>Materials, 2019-06, Vol.12 (12), p.1904</ispartof><rights>2019. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. 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| identifier | ISSN: 1996-1944 |
| ispartof | Materials, 2019-06, Vol.12 (12), p.1904 |
| issn | 1996-1944 1996-1944 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_6631368 |
| source | MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; Free Full-Text Journals in Chemistry; PubMed Central Open Access |
| subjects | Consumption Domains Elongation Impact resistance Morphology Nitrogen Polyethylene terephthalate Polymer blends Polymers Polystyrene resins Radiation Rheological properties Rheology Waste disposal |
| title | The Use of Cashew Nut Shell Liquid (CNSL) in PP/HIPS Blends: Morphological, Thermal, Mechanical and Rheological Properties |
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