Enhanced crystallization rate of biodegradable poly(butylene succinate-co-ethylene succinate) by poly(butylene fumarate) as an efficient polymeric nucleating agent

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96290-96296 ◽  
Author(s):  
Fan Meng ◽  
Zhaobin Qiu
Keyword(s):  
Crystallization Behavior ◽  
Crystallization Rate ◽  
Nucleating Agent ◽  
Melt Crystallization ◽  
Butylene Succinate ◽  
Biodegradable Poly

PBF may significantly enhance the nonisothermal melt crystallization behavior of biodegradable PBES by acting as an efficient polymeric nucleating agent.

scholarly journals Significantly Enhanced Crystallization of Poly(ethylene succinate-co-1,2-propylene succinate) by Cellulose Nanocrystals as an Efficient Nucleating Agent

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 224
Author(s):  
Siyu Pan ◽  
Zhiguo Jiang ◽  
Zhaobin Qiu
Keyword(s):  
Crystal Structure ◽  
Cellulose Nanocrystals ◽  
Crystallization Behavior ◽  
Crystallization Process ◽  
Crystallization Rate ◽  
Nucleating Agent ◽  
Melt Crystallization ◽  
Crystalline Morphology ◽  
Poly Ethylene

Poly(ethylene succinate-co-1,2-propylene succinate) (PEPS) is a novel aliphatic biodegradable polyester with good mechanical properties. Due to the presence of methyl as a side group, the crystallization rate of PEPS is remarkably slower than that of the poly(ethylene succinate) homopolymer. To promote the potential application of PEPS, the effect of cellulose nanocrystals (CNC) on the crystallization behavior, crystalline morphology, and crystal structure of PEPS was investigated in this research with the aim of increasing the crystallization rate. CNC enhanced both the melt crystallization behavior of PEPS during the cooling process and the overall crystallization rate during the isothermal crystallization process. The crystallization rate of PEPS became faster with an increase in CNC content. The crystalline morphology study directly confirmed the heterogeneous nucleating agent role of CNC. The crystal structure of PEPS remained unchanged in the composites. On the basis of the interfacial energy, the nucleation mechanism of PEPS in the composites was further discussed by taking into consideration the induction of CNC.

Effect of Cellulose Nanocrystal on Crystallization Behavior of Poly(3–hydroxybutyrate–co–3–hydroxyvalerate)

2012 ◽  
Vol 430-432 ◽  
pp. 20-23 ◽  
Author(s):  
Hou Yong Yu ◽  
Zong Yi Qin
Keyword(s):  
Heterogeneous Nucleation ◽  
Crystallization Temperature ◽  
Crystallization Behavior ◽  
Crystallization Rate ◽  
Kinetics Study ◽  
Solvent Casting ◽  
Melt Crystallization ◽  
Casting Method ◽  
Isothermal Crystallization Kinetics ◽  
Biodegradable Nanocomposites

The biodegradable nanocomposites of poly (3–hydroxybutyrate–co–3–hydroxyvalerate) (PHBV) with different cellulose nanocrystals (CNCs) contents were prepared by a solvent casting method. The effects of CNCs on the crystallization behavior of PHBV were studied by DSC. The DSC results showed that compared to PHBV, the melt crystallization temperature increased to 92.3 °C for the nanocomposites with 10 wt. % CNCs, which indicated that the crystallization of PHBV became easier with the addition of CNCs. Moreover, the non–isothermal crystallization kinetics study illustrated that overall crystallization rate of PHBV in the nanocomposites was faster than that of neat PHBV, which should be attributed to the strong heterogeneous nucleation of CNCs.

Physical and rheological properties of biodegradable poly(butylene succinate)/Alfa fiber composites

2020 ◽  
pp. 089270572090409
Author(s):  
Khadidja Arabeche ◽  
Fatiha Abdelmalek ◽  
Laurent Delbreilh ◽  
Latéfa Zair ◽  
Abdelkader Berrayah
Keyword(s):  
Rheological Properties ◽  
Complex Modulus ◽  
Fiber Composite ◽  
Cellulose Fiber ◽  
Complex Viscosity ◽  
Nucleating Agent ◽  
Butylene Succinate ◽  
Molding Method ◽  
Alfa Fibers ◽  
Biodegradable Poly

Biodegradable poly(butylene succinate) (PBS)/Alfa fiber biocomposites were prepared through the compression molding method. Scanning electron microscopy images were acquired to assess the effects of reinforcement and homogenization of mixtures and to determine the characteristics of the microstructure. The rheological properties, melting, and crystallization behavior of neat PBS and its biocomposites were investigated. Regarding the thermal properties, it was observed that the presence of Alfa fibers facilitates the crystallization of the PBS matrix, which suggests that Alfa cellulose fiber acts as a nucleating agent. The rheological analysis suggests that the biocomposites show a better dynamic behavior with the addition of Alfa fibers. Indeed, the incorporation of fibers increased the complex modulus and complex viscosity of the composites. Also, increasing the percentage of fibers in the matrix induces percolation, the shift and change in the slope of Cole–Cole curve of the PBS/Alfa fiber composite compared to that of neat PBS indicate that the PBS microstructure has changed with the addition of fibers. Moreover, the improvement of biocomposites properties is believed to be largely attributable to the homogeneous dispersion of the Alfa fibers within the polymer matrix and also to the strong interfacial interactions between the two constituents.

Effect of the Nucleating Agent BN on Crystallization Properties of P(3HB-co-4HB)

2012 ◽  
Vol 627 ◽  
pp. 827-830
Author(s):  
Bing Xin Sun ◽  
Xu Qiao Feng ◽  
Cheng Zhi Chuai ◽  
Ying Guo ◽  
Si Luo
Keyword(s):  
Crystal Structure ◽  
Crystallization Behavior ◽  
Crystallization Rate ◽  
Nucleating Agent ◽  
Structure And Morphology ◽  
Crystallization Properties

The crystallization properties of P(3HB-co-4HB) modified with nucleating agent BN was studied. DSC is used to analyze the melting crystallization behavior and POM is used to characterize crystal structure and morphology. The results show the incorporation of BN decreased the spherulite size, increased the crystallization rate and improved the crystallization properties of P(3HB-co-4HB).

Effects of Attapulgite on the Isothermal Crystallization Behavior of Poly(Butylene Succinate-co-Butylene Adipate)

2013 ◽  
Vol 791-793 ◽  
pp. 56-59
Author(s):  
Zhi Guo Qi ◽  
Jin Nan Chen ◽  
Bao Hua Guo ◽  
Yu Zhang
Keyword(s):  
Crystallization Kinetics ◽  
Crystallization Temperature ◽  
Isothermal Crystallization ◽  
Crystallization Behavior ◽  
Growth Form ◽  
Crystallization Rate ◽  
Melt Mixing ◽  
Butylene Succinate ◽  
Isothermal Crystallization Kinetics ◽  
Kinetics Of

Poly (butylene succinate-co-butylene adipate)/attapulgite nanocomposites were prepared by melt mixing in a HAAKE mixer. The crystallization kinetics of PBSA and its nanocomposites was studied under isothermal conditions by differential scanning calorimetr. The isothermal crystallization kinetics results indicated that attapulgite can induce heterogeneous nucleation, resulting in an improvement on the crystallization temperature and crystallization rate. Both the PBSA and its nanocomposites were correlated to the spherulitic growth form.

Crystallization Behavior of PLA/PEG/Nucleating Agent Blends

2013 ◽  
Vol 807-809 ◽  
pp. 578-581 ◽  
Author(s):  
Jin Xu Dai ◽  
Qiang Yang ◽  
Bao Jian Liu
Keyword(s):  
Crystal Structure ◽  
Polyethylene Glycol ◽  
Crystallization Behavior ◽  
Crystallization Rate ◽  
Nucleating Agent ◽  
Nucleating Agents ◽  
X Ray Diffraction ◽  
X Ray ◽  
Crystallization Ability ◽  
Co Precipitation

A series of PLA blends were prepared by solution co-precipitation of polylactide (PLA), polyethylene glycol (PEG) and different crystallization nucleating agents. The crystallization behavior of blends was investigated by differential scanning calorimeter (DSC) and X-ray diffraction (XRD). The results showed that the crystallization ability of PLA blends was accelerated by plasticizer PEG, but the crystal structure of the obtained PLA blends was imperfect; the crystal structure and crystallization rate of the PLA blends were improved with the addition of nucleating agent, moreover, the crystallinity was 34.1% and 36.5%, respectively.

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