Morphology and thermal degradation behavior of highly exfoliated CoAl-layered double hydroxide/polycaprolactone nanocomposites prepared by simple solution intercalation

Peng, Huan; Han, Yu; Liu, Tianxi; Tjiu, Wuiwui Chauhari; He, Chaobin

doi:10.1016/j.tca.2010.01.009

Cited by 76 publications

(37 citation statements)

References 59 publications

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“…The mass loss at 150-200ºC for the composites is due to the loss of the crystal water in CaSO 4 ·2H 2 O whiskers at low temperature. Previous studies found that there are different changes of the thermal decomposition for PCL/inorganic filler composites [33,34]. For this experiment, the T 0.5 of composites is slightly lower Figure 4.…”

Section: Thermal Behaviormentioning

confidence: 49%

Fabrication and characterization of polycaprolactone/calcium sulfate whisker composites

Liu¹,

Reni²,

Wei³

et al. 2011

Express Polym. Lett.

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Abstract. Polycaprolactone (PCL)/calcium sulfate (CS) whisker composites have been fabricated by melt blending and coprecipitation methods respectively. Scanning electron microscope (SEM) was used to observe the microstructure of the composites. The crystallization and thermal properties were characterized by polarized optical microscope (POM), X-ray diffractometry (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). For composites prepared by melt blending method, experiment results show that average length of the whiskers is shortened. The crystallization perfection of PCL in composites is improved by adding whiskers. The flexural strength increases whereas the impact strength decreases. For composites prepared by coprecipitation method, whisker addition worsens the crystallization perfection of PCL. An improvement of 21% in flexural strength and 22% in impact strength has been achieved for the composite with 15 wt% of whiskers.

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Section: Thermal Behaviormentioning

confidence: 49%

Fabrication and characterization of polycaprolactone/calcium sulfate whisker composites

Liu¹,

Reni²,

Wei³

et al. 2011

Express Polym. Lett.

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“…5. The diffraction pattern showed characteristic PCL peaks at 2θ=21.3º and 23.7º, which correspond to (1 1 0) and (2 0 0) crystallographic planes, respectively [32]. It can be observed that there were only slight changes in the diffraction profiles as degradation proceeded.…”

Section: X-ray Diffractionmentioning

confidence: 95%

Hydrolytic and enzymatic degradation of a poly(ε-caprolactone) network

Castilla-Cortázar¹,

Más-Estellés²,

Dueñas³

et al. 2012

Polymer Degradation and Stability

149

116

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Long-term hydrolytic and enzymatic degradation profiles of poly(ε-caprolactone) (PCL) networks were obtained. The hydrolytic degradation studies were performed in water and phosphate buffer solution (PBS) for 65 weeks. In this case, the degradation rate of PCL networks was faster than previous results in the literature on linear PCL, reaching a weight loss of around 20% in 60 weeks after immersing the samples either in water or PBS conditions. The enzymatic degradation rate in Pseudomonas Lipase for 14 weeks was also studied, with the conclusion being that the degradation profile of PCL networks is lower than for linear PCL, also reaching a 20% weight loss. The weight lost, degree of swelling, and calorimetric and mechanical properties as a function of degradation time were obtained. Furthermore, the morphological changes in the samples were studied carefully through electron microscopy and crystal size through X-ray diffraction. The changes in some properties over the degradation period such as crystallinity, crystal size and Young's modulus were smaller in the case of enzymatic studies, highlighting differences in the degradation mechanism in the two studies, hydrolytic and enzymatic.

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“…It has good toughness, displays rubbery properties and has low glass transition and melting temperatures (-60 and 60 ºC, respectively). It is also more thermally stable than PLA, which opens the possibility that the presence of PCL in PLA will not only improve its toughness, but also its thermal stability [16,18,20,21]. Blends of PLA and PCL have been extensively studied [9,16,18,21], and they were reported to be immiscible, with discrete PLA domains in a continuous PCL phase, and with poor mechanical properties because of their incompatibility [18,22,23].…”

Section: A N U S C R I P Tmentioning

confidence: 99%

Morphology and thermal degradation studies of melt-mixed poly(lactic acid) (PLA)/poly(ε-caprolactone) (PCL) biodegradable polymer blend nanocomposites with TiO2 as filler

2015

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Morphology and thermal degradation behavior of highly exfoliated CoAl-layered double hydroxide/polycaprolactone nanocomposites prepared by simple solution intercalation

Cited by 76 publications

References 59 publications

Fabrication and characterization of polycaprolactone/calcium sulfate whisker composites

Fabrication and characterization of polycaprolactone/calcium sulfate whisker composites

Hydrolytic and enzymatic degradation of a poly(ε-caprolactone) network

Morphology and thermal degradation studies of melt-mixed poly(lactic acid) (PLA)/poly(ε-caprolactone) (PCL) biodegradable polymer blend nanocomposites with TiO2 as filler

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