Composites based on green high-density polyethylene, polylactide and nanosized calcium carbonate: Effect of the processing parameter and blend composition

Oliveira, Amanda Gerhardt de; Silva, Ana Lúcia Nazareth da; Sousa, Atos Alves de; Leite, Márcia Christina Amorim Moreira; Jandorno, Julio César; Escócio, Viviane Alves

doi:10.1016/j.matchemphys.2016.06.068

Cited by 14 publications

(5 citation statements)

References 25 publications

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“…The transport elements, to transport the material along the length of the thread profile; mixing elements, to favor the mixing of constituent materials exerting direct influence on shear; and reverse elements, with the aim of extending the residence time and favoring a more intensive mixing [15,16] . Processing characteristics can be induced, from mild to severe, according to the configuration of the screw thread and its elements, changing the extent of physicochemical changes that influence the quality of the product [10,17,18] . The inclusion of reverse elements can widen the residence time distribution, especially at low feed rates [12] , in addition to increasing the mixing and dispersion of the material in the extruder, as the geometry of the reverse elements must ensure a more intense shear of the material [19] .…”

Section: Introductionmentioning

confidence: 99%

Influence of processing parameters on mechanical and thermal behavior of PLA/PBAT blend

2022

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Section: Introductionmentioning

confidence: 99%

Influence of processing parameters on mechanical and thermal behavior of PLA/PBAT blend

2022

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“…5 –9 Recently, PLA/nano calcium carbonate (NCC)-based nanocomposites have received a lot of attention owing to its wide range of potential applications, improvement of mechanical properties, and production cost. 10 –13 Incorporation of NCC to PLA matrix increases tensile modulus and stiffness, and the resulting nanocomposite shows no brittle fracture behavior. 10,11 Calcium carbonate can be modified with different surfactants such as fatty acids, phosphonate, and titanate to improve the dispersion state in the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

“…10 –13 Incorporation of NCC to PLA matrix increases tensile modulus and stiffness, and the resulting nanocomposite shows no brittle fracture behavior. 10,11 Calcium carbonate can be modified with different surfactants such as fatty acids, phosphonate, and titanate to improve the dispersion state in the polymer matrix. 14,15…”

Section: Introductionmentioning

confidence: 99%

Poly(lactic acid) phase transitions in the presence of nano calcium carbonate: Opposing effect of nanofiller on static and dynamic measurements

Yousefzade

Jeddi

Vazirinasab

et al. 2018

Journal of Thermoplastic Composite Materials

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The effect of stearic acid-coated nano calcium carbonate (NCC) on transitions and chain mobility of poly(lactic acid) (PLA) was investigated. Dispersion state of NCC in polymeric matrix was explored using scanning electron microscopy and surface tension component measurements. Trends of PLA transitional phenomena were investigated using the results of dynamical mechanical analysis (DMA) and differential scanning calorimetry (DSC) in the nanocomposite systems based on PLA and NCC. In addition, two types of crystal structures and decreasing the glass transition temperature were distinguished using temperature-modulated DSC (TMDSC). Higher melting points of polymer crystals were found in TMDSC experiments due to low and dynamic heating rate compared to the conventional DSC. Dynamics of polymer chains, affected by NCC, were quantified using cooperativity length, ξ α, and the number of relaxing structural units, Nα, in the glass transition region. NCC particles hindered the cooperative motion of polymer chains at glass transitions and crystallization in TMDSC measurements, whereas the DMA results indicated that NCC particles may act as lubricant and simplified chain mobility.

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“…Polymer composites are class of materials where the dispersed filler particles play role of adsorption and redistribution the stress evenly in the matrix. Several studies have been carried out which focused on polyolefin calcium carbonate composites [9][10][11][12][13][14][15][16][17]. The addition of CaCO 3 to high density polyethylene could improve the mechanical and thermal properties without effecting the crystallization of the polymer [12].…”

Section: Introductionmentioning

confidence: 99%

“…The increment is depending on the dispersion, shape, surface area of the particles. However, the poor interfacial adhesion between organic polymers and inorganic fillers weakens the mechanical properties of such composites [9,10]. Tanniru & Misra [11] investigated the micromechanism of plastic deformation during impact for 20% CaCO 3 high density polyethylene their observation was the adoption of CaCO 3 in polyethylene has two primary effects: the reinforcement and the nucleating effect.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of High Density Polyethylene/Cement Kiln Dust Composite Natural Monomer

Elhrari¹

2018

RDMS

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A viable solution for reducing the negative environment impact of cement kiln dust (CKD) is to combine with polymeric materials to produce composites materials for many applications in different purposes. In this work, an attempt to investigate the addition of CKD as filler with different load to High density polyethylene (HDPE), also the effect of polyethylene glycol (PEG) as compatibilizer on mechanical properties of the polymer composites. HDPE/CKD composites with various CKD content (0,2,4,6, and 8wt%) samples were prepared by melt extrusion followed by injection molding. The effect of adding 2wt% of PEG on mechanical properties of the composites were studied. Tensile strength, impact resistance and, surface hardness was investigated. The results showed improve in tensile strength and elongation at break (%) of polymer composites with 2wt% CKD and reduction in the elastic modulus which attributed to that polymer composite become more ductile and tough. The addition of PEG as compatibilizer showed a significant improvement in mechanical properties that were clear in tensile and impact strength of the polymer composites.

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Composites based on green high-density polyethylene, polylactide and nanosized calcium carbonate: Effect of the processing parameter and blend composition

Cited by 14 publications

References 25 publications

Influence of processing parameters on mechanical and thermal behavior of PLA/PBAT blend

Influence of processing parameters on mechanical and thermal behavior of PLA/PBAT blend

Poly(lactic acid) phase transitions in the presence of nano calcium carbonate: Opposing effect of nanofiller on static and dynamic measurements

Mechanical Properties of High Density Polyethylene/Cement Kiln Dust Composite Natural Monomer

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