Effect of injection parameters on the thermal, mechanical and thermomechanical properties of polycaprolactone (PCL)

Luna, Carlos Bruno Barreto; Siqueira, Danilo Diniz; Ferreira, Eduardo da Silva Barbosa; Araújo, Edcleide Maria; Wellen, Renate Maria Ramos

doi:10.1177/00952443211015345

Cited by 8 publications

(4 citation statements)

References 40 publications

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“…The crystallinity for pure PCL agreed with the value reported in the literature (approx. 60%) [ 43 , 44 ]. This value is altered by the dissolution process of the material in organic solvents.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of polycaprolactone/calcium phosphates hybrid scaffolds impregnated with plant extracts using 3D printing for potential bone regeneration

Garcia-Garcia¹,

Orozco²,

Betancur³

et al. 2023

Heliyon

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Section: Resultsmentioning

confidence: 99%

Fabrication of polycaprolactone/calcium phosphates hybrid scaffolds impregnated with plant extracts using 3D printing for potential bone regeneration

Garcia-Garcia¹,

Orozco²,

Betancur³

et al. 2023

Heliyon

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“…Where: ∆H m = Crystalline melting enthalpy obtained by DSC; ∆H f = Melting enthalpy of PCL with 100 % crystallinity, 146 J/g [33,34]; w = mass fraction of PCL in the composition.…”

Section: Composites Characterizationmentioning

confidence: 99%

Effect of kaolin waste annealing on the structural and thermal behavior of poly(ε−caprolactone)

Filho

Luna

Silva

et al. 2022

Momento

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The heat treatment effect on kaolin waste from mining was evaluated on the structural and thermal behavior of poly(ε-caprolactone) (PCL). The PCL/KW (kaolin waste) and PCL/HTKW (heat-treated kaolin waste) composites were processed in an internal mixer and subsequently characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The kaolin waste showed kaolinite and quartz in its composition, while the heat treatment at 1200°C modified it to mullite, quartz and silica-rich amorphous phase. By XRD, there was an increase in the intensity of the peak 2θ = 23.9° of the PCL/KW composites compared to neat PCL. In contrast, PCL/HTKW composites tended to reduce the intensity of the peak 2θ = 23.9°, especially at 5% HTKW. The crystalline melting temperature and the degree of crystallinity of PCL/KW and PCL/HTKW composites were practically unchanged, compared to PCL. However, the crystallization process was more effective with the kaolin waste (KW) without heat treatment, indicating that the HTKW amorphous phase inhibited crystallization. The PCL/KW development promoted an increase in crystallization temperature, relative crystallinity, and crystallization rate, surpassing PCL and the PCL/HTKW system. In view of this, kaolin waste has the potential to accelerate the PCL crystallization process, contributing to add value to a material that would otherwise be discarded and minimizing environmental impacts.

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“…Crystallinity (Xc) was determined using (2). The considered melting enthalpy of the 100% crystalline PCL (∆Ho) was 146J/g [37].…”

Section: Differential Scanning Calorimetrymentioning

confidence: 99%

Investigation of Polycaprolactone/Carboxymethyl Cellulose Scaffolds by Mechanical and Thermal Analysis

Sriputtha¹,

Wiwatwongwana²,

Promma

2022

Eng. Technol. Appl. Sci. Res.

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The objective of this work was to learn more about three-dimensional porous scaffolds made from biomaterial based on polycaprolactone (PCL) containing different amounts of carboxymethyl cellulose (CMC) nanoparticles. Composite material samples containing 0, 2, 6.5, 11, 15.5, and 20% w/w of CMC and PCL/CMC scaffolds were prepared with the use of the salt particle leached technique. The mechanical properties were evaluated with the compressive strength analysis method. The studied temperature range started at very low temperatures and ended at crosslinking temperatures. It was evaluated using the thermal analysis methods of Differential Scanning Calorimetry (DSC) in the range 0ºC-200ºC. The results revealed that the compressive modulus of blended PCL/CMC scaffold was higher than the one of pure PCL scaffold (582.2±106.2 kPa for pure PCL scaffold and 612.2±296 kPa for blended scaffold which contained 20% of CMC). For DSC analysis, in addition to the 15.5% w/w CMC PCL/CMC composite scaffold, other proportions of composite materials showed a decrease in crystallization temperature. The crystallinity of PCL-20% CMC was higher than that of PCL scaffolds.

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Effect of injection parameters on the thermal, mechanical and thermomechanical properties of polycaprolactone (PCL)

Cited by 8 publications

References 40 publications

Fabrication of polycaprolactone/calcium phosphates hybrid scaffolds impregnated with plant extracts using 3D printing for potential bone regeneration

Fabrication of polycaprolactone/calcium phosphates hybrid scaffolds impregnated with plant extracts using 3D printing for potential bone regeneration

Effect of kaolin waste annealing on the structural and thermal behavior of poly(ε−caprolactone)

Investigation of Polycaprolactone/Carboxymethyl Cellulose Scaffolds by Mechanical and Thermal Analysis

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