Effect of biobased and biodegradable nucleating agent on the isothermal crystallization of poly(lactic acid)

Kang, Kyung Su; Lee, Sang Il; Lee, Tae Jin; Narayan, Ramáni; Shin, Boo Young

doi:10.1007/s11814-008-0101-7

Cited by 62 publications

(43 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is observed that the half-time of overall crystallization t 1/2 of PLLA is long, and the crystallization rate of neat PLLA appears to be maximum at value 115 °C. However, the addition of starch can increase the crystallization rate; this result is consistent with other literatures results [11,12]. It is worth noting that the maximum value of crystallization rate of PLLA/starch composites appears in low crystallization temperature zone.…”

Section: Crystallization Of Plla/starch Compositessupporting

confidence: 91%

“…Influence of starch on the crystallization of PLA had been reported in literature [11,12], and the research results showed that starch could serve as nucleating agent of PLA, improving the degree of crystallization and crystallization rate of PLLA. Similarly, the crystallization performance of PLLA with starch was investigated using optical depolarizer, and the rate of measurement is shown in (Fig.…”

Section: Crystallization Of Plla/starch Compositesmentioning

confidence: 88%

See 1 more Smart Citation

Preparation and Physical Performance of Green Poly(L-lactic acid) Composition by Blending with Starch

Cai¹,

Zheng²,

Guo³

2017

TOMSJ

View full text Add to dashboard Cite

Objective:To develop more green polymer composites and further know the performance of green composites, the composites based on green poly(L-lactic acid) (PLLA) and starch were fabricated by a counter-rotating mixer. And effect of starch on the fluidity and nucleating performance of PLLA was investigated using melt index instrument, optical depolarizer and wide angle X-ray diffraction instrument, respectively. Method and Conclusion:The fluidity of PLLA/starch composites showed that, compared to the neat PLLA, the addition of starch made the fluidity of PLLA increase significantly and the melt mass flow rate of PLLA/5%starch sample had the maximum value 13.36 g/10min. In addition, the introduction of starch could also increase the crystallization rate of PLLA through isothermal crystallization measurement and x-ray diffraction analysis, the maximum value of crystallization rate of PLLA/starch composites appeared in low crystallization temperature zone, and 10 wt% starch could make the t1/2 of PLLA decrease from 3999.4s to 421.4s.

show abstract

Section: Crystallization Of Plla/starch Compositessupporting

confidence: 91%

Section: Crystallization Of Plla/starch Compositesmentioning

confidence: 88%

Preparation and Physical Performance of Green Poly(L-lactic acid) Composition by Blending with Starch

Cai¹,

Zheng²,

Guo³

2017

TOMSJ

View full text Add to dashboard Cite

show abstract

“…Therefore, all of these components promote crystallinity while they provide a lower cold crystallization temperature. The cold crystallization temperature in ternary system could not be detected probably due to the high degree of crystallinity [12], [13]. Nevertheless, in binary systems the effect of nucleating agent on cold crystallization was not prominent.…”

Section: Resultsmentioning

confidence: 91%

Thermal Properties of Plasticized Poly (Lactic Acid) (PLA) Containing Nucleating Agent

Fehri¹,

Cinelli²,

Coltelli³

et al. 2016

IJCEA

View full text Add to dashboard Cite

Abstract-The present research reports the investigation of the role of an oligomeric polyadipate plasticizer (206 3NL), and a nucleating agent aromatic sulfonate derivative (LAK301) on thermal behaviours of poly-lactic acid (PLA) evaluated through differential scanning calorimetry (DSC) measurements in order to investigate the separated effect due to the addition of plasticizer and nucleating agent on the thermal behavior of PLA respectively. Binary and ternary systems containing PLA/206 3NL/LAK301 have been developed. All samples have been prepared by melt-blending. The results of the present study show that LAK301 acts as a very efficient nucleating agent by increasing crystallinity percentage from 5.6% in pure PLA to 12% in PLA/LAK301 5%wt/206 3NL, and that (206 3NL) is a compatible plasticizer for PLA as the glass temperature drops down from 59.4 °C in pure PLA to 38.9 °C in blends of PLA-NL 15 wt%. Also the approach of investigating the compatibility in ternary system where the plasticizer and nucleating agent have a synergic effect on thermal properties as well on crystallinity and glass transition temperature of PLA were addressed. In fact in ternary blends of PLA/LAK301/206 3NL with 5 wt% of LAK301 the glass transition temperature was reduced to 30.3 °C and PLA crystallinity increased to 39 wt%.

show abstract

“…On the other hand, the crystallization temperature on heating -T cc , was affected by the addition of 3 wt.% of the mineral filler. According to Kang et al [1] , a lower crystallization temperature on heating indicates faster crystallization. *T c and ∆H c are the crystallization temperature and heat of crystallization, respectively, on the first heating curve.…”

Section: Thermal Propertiesmentioning

confidence: 99%

“…Biobased and biodegradable polymers are regarded as a sustainable alternative to current petroleum based materials and have already found acceptance in areas such as food packaging, bags and sacks, loose fill packaging agricultural film among other market applications [1,2] . Poly (lactic acid) (PLA) is a well-known biodegradable aliphatic polyester resin ( Figure 1) and it is widely used not only for so-called simple applications, such as cups, but also for packaging and biomedical applications [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

Thermal, rheological and morphological properties of poly (lactic acid) (PLA) and talc composites

Cipriano¹,

Silva²,

Silva³

et al. 2014

Polímeros

View full text Add to dashboard Cite

Abstract:In this study, composites based on poly(lactic acid) (PLA)/talc were prepared at different compositions by melt mixing in a twin screw extruder. The effect of a nucleating agent, talc, on the crystallization behavior, rheological and morphological properties of PLA was investigated. DSC results showed that the addition of the mineral filler in the range between 1 and 5 wt. % to the PLA matrix increases the degree of crystallinity. This finding shows that talc acted as a nucleating agent for PLA during the processing stage. The composites morphology was also studied using a scanning electron microscope (SEM). The micrographs showed that a good dispersion of talc was achieved in all compositions analyzed. The rheology of PLA/talc composites was evaluated with the dynamic mode and correlated with the aforementioned observed morphology. The results showed that the addition of the mineral filler to the PLA matrix decreased system viscosity, thus highlighting the filler's lubricant effect. As talc content increased, system's viscosity also increased, providing material with higher elastic behavior. Thermal analysis showed that the composition of 3 wt.% of talc added to polymer matrix seems to be interesting with regard to the need of articles possessing good dimension stability.

show abstract

Effect of biobased and biodegradable nucleating agent on the isothermal crystallization of poly(lactic acid)

Cited by 62 publications

References 32 publications

Preparation and Physical Performance of Green Poly(L-lactic acid) Composition by Blending with Starch

Preparation and Physical Performance of Green Poly(L-lactic acid) Composition by Blending with Starch

Thermal Properties of Plasticized Poly (Lactic Acid) (PLA) Containing Nucleating Agent

Thermal, rheological and morphological properties of poly (lactic acid) (PLA) and talc composites

Contact Info

Product

Resources

About