Processability modifications of poly(3‐hydroxybutyrate) by plasticizing, blending, and stabilizing

Wang, Liang; Zhu, Wenfu; Wang, Xiaojuan; Chen, Xianyu; Chen, Guo Qiang; Xu, Kan

doi:10.1002/app.27004

Cited by 105 publications

(102 citation statements)

References 32 publications

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“…As it can be seen in Fig. 2(b), individual PHB shows two melt peaks: one located at 168.3 ºC which is related to the melting of PHB and a small one peak at 52.3 ºC which can be attributable to some low molecular weight additive in the formulation [26,27]. With regard to the glass transition temperature, typical values of T g for PHB are located between the 2-7 ºC range.…”

Section: Tablementioning

confidence: 88%

Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

et al. 2016

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2 AbstractThe present work is focused on the development of binary blends from poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL). Miscibility, mechanical and thermal properties as well as blends morphology are evaluated in terms of the blend composition. Binary PHB-PCL blends were manufactured by melt compounding in a twin screw co-rotating extruder and injection molded. Composition of PHB-PCL covered the full range between individual polymers at 25 wt% increments. The obtained results show that PCL acts as an impact modifier thus leading to an increase in flexibility and ductility as the PCL content on PHB-PCL blends increases with a noticeable increase in elongation at break and on

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Section: Tablementioning

confidence: 88%

Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

et al. 2016

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“…These authors classified PEG400 as a plasticizer for PHB, due to a reduction in melting temperature of PHB in PHB/PEG blends. Poly(3-hydrobutyrate) plasticized was prepared with dioctyl (o-)phthalate (DOP), dioctyl sebacate (DOS), and dioctyl sebacate (ATBC)(exploit) [42]. It was shown, from the DSC measurements, that only the addition of ATBC leads to an obvious decline in T g and improves other thermal characteristics.…”

Section: Blending Of Phb With Other Polymers Ormentioning

confidence: 99%

Polyhydroxyalkanoate (PHA): Review of synthesis, characteristics, processing and potential applications in packaging

Bugnicourt¹,

Cinelli²,

Lazzeri³

et al. 2014

Express Polym. Lett.

772

463

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Abstract. Polyhydroxyalkanoates (PHAs) are gaining increasing attention in the biodegradable polymer market due to their promising properties such as high biodegradability in different environments, not just in composting plants, and processing versatility. Indeed among biopolymers, these biogenic polyesters represent a potential sustainable replacement for fossil fuel-based thermoplastics. Most commercially available PHAs are obtained with pure microbial cultures grown on renewable feedstocks (i.e. glucose) under sterile conditions but recent research studies focus on the use of wastes as growth media. PHA can be extracted from the bacteria cell and then formulated and processed by extrusion for production of rigid and flexible plastic suitable not just for the most assessed medical applications but also considered for applications including packaging, moulded goods, paper coatings, non-woven fabrics, adhesives, films and performance additives. The present paper reviews the different classes of PHAs, their main properties, processing aspects, commercially available ones, as well as limitations and related improvements being researched, with specific focus on potential applications of PHAs in packaging.

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“…Wang et al 61 used adding plasticizer ATBC (acetyl tributyl citrate) at 0, 10, 20, 25 and 30% PHB. In this case, the author found that increasing plasticizer content there was a decrease in initial degradation temperature of 224 °C (neat PHB) to 188 °C (30% ATBC).…”

Section: Tga Of Phb and Compositesmentioning

confidence: 99%

Polyhydroxybutyrate Composites with Random Mats of Sisal and Coconut Fibers

et al. 2016

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Biodegradable polymeric composites using natural fibers have been investigated aiming to mitigate environmental impacts. In this paper, polyhydroxybutyrate (PHB) composites obtained using random mats of sisal and coconut fibers by compression molding in a hydraulic press, and the fiber content varied between 10% and 15% relative to the weight of the polymer. Thermal analyses were performed such as Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA). Flexural and tensile tests were performed before and after conditioning in climate chamber with temperature and moisture. The results of thermal analysis show that the thermal stability of the materials remained, both PHB without fiber as for composites with natural fibers mats. The results of mechanical tests indicated that the PHB without fibers and composites showed similar flexural strength values, while the results of the tensile test PHB without fibers showed resistance to higher tensile composite.

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Processability modifications of poly(3‐hydroxybutyrate) by plasticizing, blending, and stabilizing

Cited by 105 publications

References 32 publications

Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

Polyhydroxyalkanoate (PHA): Review of synthesis, characteristics, processing and potential applications in packaging

Polyhydroxybutyrate Composites with Random Mats of Sisal and Coconut Fibers

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