Investigation of the effect of addition of calcium stearate on the properties of low-density polyethylene/poly(ε-caprolactone) blends

Rezende, Maira de Lourdes; Rosa, Derval dos Santos; Guedes, Cristina das Graças Fassina; Fechine, Guilhermino J. M.; Nóbrega, Joaquim A.

doi:10.1007/s10853-013-7837-0

Cited by 5 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies have been carried out assessing the filling and modification of nanosized CaCO 3 , particularly in biodegradable polyesters and their blends [1][2][3][4][5][6][7]. Effects of fillers on PLA [1,4,6,7], PBAT [2][3][4]7], PHAs [2], polycaprolactone [5], poly(butylene succinate) and copolymers [2] have been investigated.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Calcium Carbonate Nanoparticles on the Soil Burial Degradation of Polybutyleneadipate-Co-Butylenetherephthalate Films

et al. 2022

View full text Add to dashboard Cite

A polybutyleneadipate-co-butylenetherephthalate (PBAT) sample, commercially known as Ecoflex®, was processed via melt extrusion with CaCO3 nanoparticles coated with a hydrophobic coating. Blown films of PBAT and two composites with nanofiller (2% and 5%wt) were prepared and degradation tests in soil at 30 °C up to 180 days were carried out with weight loss measurements. Furthermore, biodegradation test according to ISO 14851 was carried out at 30 °C. The effect of CaCO3 on soil burial degradation was assessed by surface wettability and SEM. ATR-FTIR and XPS analyses highlighted chemical modifications induced by soil degradation. CaCO3 nanoparticles decreased surface wettability and discouraged the disintegration in soil. Interestingly, SEM images after soil degradation highlighted in the nanocomposite films selective zones of disintegration. XPS showed an increasing peak area C 1s ratio of C–O to C=O with degradation time. Moreover, after the soil burial test, carbonyl index determined by ATR-FTIR increased in both nanocomposites. In fact, the addition of CaCO3 leads to a rise in the carbonyl zone due to the presence of the carbonate group. Remarkably, FTIR data after soil degradation showed an enrichment of the aromatic content, a preferential cleavage and erosion of the aliphatic moiety in PBAT films, amplified by the presence of the CaCO3 nanofiller.

show abstract

Section: Introductionmentioning

confidence: 99%

“…The influence of nanosized CaCO 3 added, in a percentage ranging from 2 to 20%, in the biodegradable polymer matrix on the biodegradation rate has been investigated. However, studies in the literature have been limited and mainly focused on PLA and its blends [2,[4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Influence of Calcium Carbonate Nanoparticles on the Soil Burial Degradation of Polybutyleneadipate-Co-Butylenetherephthalate Films

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The cost of PCL, however, prevents its complete replacement of PE as a commodity plastic. One way to decrease the environmental impact of PE without a prohibitive increase in cost is the use of blends of PE with biodegradable aliphatic polyesters. − Practical implementation of this requires a fundamental understanding of the factors that contribute to compatibility between the homopolymers of PCL and PE. Block copolymers are a class of macromolecules produced by joining two or more chemically distinct polymer blocks that are typically thermodynamically incompatible .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Poly(methylene-b-ε-caprolactone) and Poly(ε-caprolactone) with Linear Alkyl End Groups: Synthesis, Characterization, Phase Behavior, and Compatibilization Efficacy

Baez

Zhao

Shea

2017

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Diblock copolymers of poly(methylene-b-ε-caprolactone) (PM-b-PCL) were synthesized in two steps: (a) polyhomologation, to obtain, following oxidative cleavage of the carbon–boron (PM, block1), an α-hydroxyl-ω-methyl polymethylene (PMOH, CH3–[CH2] m –OH) and, following the transfer reaction to the ring-opening polymerization catalyst, (b) ring-opening polymerization (ROP) of ε-caprolactone (CL) (PCL, block2). In addition, a series of homopolymers derived from poly(ε-caprolactone) (PCL) oligoesters containing an end group of docosyl (CH3–[CH2]21– or C22; C22–PCL) were obtained as a model to compare their physical properties by DSC with those of PM-b-PCL. The oligomers derived from PM-b-PCL and C22–PCL were characterized by 1H and 13C NMR, AFM, DSC, GPC, and MALDI-TOF. PM-b-PCL and C22–PCL were evaluated as compatibilizers for PE/PCL polymer blends. Identification and analysis of optimized blocks of PM-b-PCL by POM and SEM showed improved mixing of PE/PCL blends.

show abstract

Thermal and mechanical properties of UHMWPE/HDPE/PCL and bioglass filler: Effect of polycaprolactone

Espinosa

Escobar-Barrios

Escobedo

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polymeric composites based on polyethylene, high‐density polyethylene (HDPE) and ultra‐high‐molecular‐weight polyethylene (UHMWPE) with polycaprolactone (PCL) and a ceramic filler (bioglass type) were studied in terms of their thermal and mechanical behavior. Two polyethylene ratios (10/90 and 30/70% wt/wt of UHMWPE/HDPE) and two PCL content ratios (5% and 10% wt/wt) were used. The obtained composites were characterized by differential scanning calorimetry, melt flow index, Fourier transform infrared spectroscopy, scanning electron microscopy, and X‐ray diffraction. The results indicate a nonchemical interaction between polyethylene, especially the UHMWPE, and PCL and that the composites' thermal transitions vary from the parent polymers and depend on the PCL concentration. The PCL's melting temperature in the composite was reduced, showing a new one. Also, the melting enthalpy of polyethylene was reduced when the concentration of PCL increased. The mechanical behavior depends on both the polyethylene ratio and the PCL content. The composite with 30% wt/wt of UHMWPE and 10% wt/wt of PCL showed the highest toughness value due to the good interaction between polymers. These new composites may be attractive for biomedical applications and could be evaluated, for example, as materials for prostheses.

show abstract

Investigation of the effect of addition of calcium stearate on the properties of low-density polyethylene/poly(ε-caprolactone) blends

Cited by 5 publications

References 29 publications

Influence of Calcium Carbonate Nanoparticles on the Soil Burial Degradation of Polybutyleneadipate-Co-Butylenetherephthalate Films

Influence of Calcium Carbonate Nanoparticles on the Soil Burial Degradation of Polybutyleneadipate-Co-Butylenetherephthalate Films

Synthesis of Poly(methylene-b-ε-caprolactone) and Poly(ε-caprolactone) with Linear Alkyl End Groups: Synthesis, Characterization, Phase Behavior, and Compatibilization Efficacy

Thermal and mechanical properties of UHMWPE/HDPE/PCL and bioglass filler: Effect of polycaprolactone

Contact Info

Product

Resources

About