Rheological and mechanical characterization of poly(lactic acid)/polypropylene polymer blends

Hamad, Kotiba; Kaseem, Mosab; Deri, Fawaz

doi:10.1007/s10965-011-9586-6

Cited by 91 publications

(64 citation statements)

References 24 publications

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“…The rheological properties of PLA and its systems (PLA blends and composites) were investigated extensively using a variety of rheological characterization methods, such as capillary and rational rheometers [16][17][18][19][20]. Similar to all thermoplastic polymers, PLA exhibited Newtonian behavior at the low shear rates (<10 s -1 ) whereas it exhibited nonNewtonian behavior (shear thinning) at the high shear rates (>10 s -1 ) as shown in Figure 4.…”

Section: Properties Of Polylactic Acid 31 Rheological Propertiesmentioning

confidence: 99%

Properties and medical applications of polylactic acid: A review

Hamad¹,

Kaseem²,

Yang

et al. 2015

Express Polym. Lett.

574

306

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Abstract. Polylactic acid (PLA), one of the well-known biodegradable polyesters, has been studied extensively for tissue engineering and drug delivery systems, and it was also used widely in human medicine. A new method to synthesize PLA (ring-opening polymerization), which allowed the economical production of a high molecular weight PLA polymer, broadened its applications, and this processing would be a potential substitute for petroleum-based products. This review described the principles of the polymerization reactions of PLA and, then, outlined the various materials properties affecting the performance of PLA polymer, such as rheological, mechanical, thermal, and barrier properties as well as the processing technologies which were used to fabricate products based on PLA. In addition, the biodegradation processes of products which were shaped from PLA were discussed and reviewed. The potential applications of PLA in the medical fields, such as tissue engineering, wound management, drugs delivery, and orthopedic devices, were also highlighted.

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Section: Properties Of Polylactic Acid 31 Rheological Propertiesmentioning

confidence: 99%

Properties and medical applications of polylactic acid: A review

Hamad¹,

Kaseem²,

Yang

et al. 2015

Express Polym. Lett.

574

306

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“…Blending of a non-biodegradable polymer with a biodegradable one is a well-established approach employed by many researchers [14][15][16][17][18][19] for obtaining degradable materials for sustainable development and specific enduses. Total replacement of the commercial polymers for packaging applications by the completely biodegradable ones is remote, due to the use of costly monomers and additives in the expensive production/processing of the biodegradable biopolymers and the limited shelf life of biodegradable polymers.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and morphological properties of high density polyethylene and polylactide blends

Madhu

Bhunia

Bajpai

et al. 2014

Journal of Polymer Engineering

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Polyblend films were prepared from high-density polyethylene (HDPE) and poly(l-lactic acid) (PLLA) up to 20% PLLA by the melt blending method in an extrusion mixer with post-extrusion blown film attachment. The 80/20 (HDPE/PLLA) blend was compatibilized with maleic anhydride grafted polyethylene (PE-g-MA) in varying ratios [up to 8 parts per hundred of resin (phr)]. Tensile properties of the films were evaluated to obtain optimized composition for packaging applications of both non-compatibilized and compatibilized blends. The compositions HDPE80 (80% HDPE and 20% PLLA) and HD80C4 (80% HDPE, 20% PLLA and 4 phr compatibilizer) were found to be optimum for packaging applications. However, better tensile strength (at yield) and elongation (at break) of 80/20 (HDPE/PLLA) blend were noticed in the presence of PE-g-MA. Further, thermal properties and morphologies of these blends were evaluated. Differential scanning calorimetry (DSC) study revealed that blending does not much affect the crystalline melting point of HDPE and PLLA, but heat of fusion of 80/20 (HDPE/PLLA) blend was decreased as compared to that of neat HDPE. Spectroscopy studies showed evidence of the introduction of some new groups in the blends and gaining compatibility in the presence of PE-g-MA. The compatibilizer influenced the morphology of the blends, as apparent from scanning electron microscopy (SEM) and supported by Fourier transform infrared (FTIR).

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“…PLA have been blended with rubbers [3], thermoplastic starch (TPS) [4][5][6][7][8][9], poly(butylene succinate) (PBS) [10], poly(butylene succinate adipate) (PBSA) [11], poly(butylene adipateco-terephthalate) (PBAT) [12][13][14][15], acrilontryl-butadienestyrene (ABS) [16], polypropylene (PP) [17][18][19], and polystyrene (PS) [20,21], to obtain materials with lower cost and improved properties.…”

Section: Introductionmentioning

confidence: 99%

Melt Rheology of Poly(Lactic Acid)/Low Density Polyethylene Polymer Blends

Hamad¹,

Kaseem²,

Deri³

2011

ACES

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In this work, rheological properties of poly(lactic acid) (PLA), low density polyethylene (LDPE) polymer blends were investigated in the molten state. The experiments were carried on a capillary rheometer. The effect of shear stress, temperature and blending ratio on the flow activation energy at a constant shear stress and melt viscosity of the blends are described. The results showed that the PLA/LDPE polymer blends are pseudo plastic in nature, where there viscosity decreases with increasing shear stress. Also it was found the melt viscosity of the blends decreases with increasing PLA content in the blend.

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Rheological and mechanical characterization of poly(lactic acid)/polypropylene polymer blends

Cited by 91 publications

References 24 publications

Properties and medical applications of polylactic acid: A review

Properties and medical applications of polylactic acid: A review

Mechanical and morphological properties of high density polyethylene and polylactide blends

Melt Rheology of Poly(Lactic Acid)/Low Density Polyethylene Polymer Blends

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