Thermal stability and fire reaction of poly(butylene succinate) nanocomposites using natural clays and FR additives

2017 ◽  
Vol 29 (1) ◽  
pp. 69-83 ◽  
Author(s):  
Loic Dumazert ◽  
Damien Rasselet ◽  
Bo Pang ◽  
Benjamin Gallard ◽  
Salima Kennouche ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Butylene Succinate ◽  
Natural Clays

Biodegradability of Poly (butylene succinate) under Enzymatic Degradation

2013 ◽  
Vol 750-752 ◽  
pp. 1318-1321 ◽  
Author(s):  
Bing Xin Sun ◽  
Cheng Zhi Chuai ◽  
Si Luo ◽  
Ying Guo ◽  
Xu Qiao Feng
Keyword(s):  
Thermal Stability ◽  
Weight Loss ◽  
Enzymatic Degradation ◽  
Growth Process ◽  
Linear Growth ◽  
Butylene Succinate ◽  
Surface Corrosion ◽  
Acclimation Period

To investigate the biodegradability of PBS, films made of PBS were subjected to enzymatic degradation. The declining thermal stability and XRD diagrams showed that the crystallinity of PBS was reduced after degradation. SEM results confirmed that the mode of enzymatic degradation was surface corrosion. In addition, the weight loss of the material did not experience the so-called acclimation period, but showed a typical linear growth process.

Thermal and Thermomechanical Properties of Poly(butylene succinate) Nanocomposites

2008 ◽  
Vol 8 (4) ◽  
pp. 1679-1689 ◽  
Author(s):  
Mamookho E. Makhatha ◽  
Suprakas Sinha Ray ◽  
Joseph Hato ◽  
Adriaan S. Luyt
Keyword(s):  
Thermal Stability ◽  
Tensile Modulus ◽  
Melting Behavior ◽  
Mechanical Analysis ◽  
Thermomechanical Properties ◽  
Scanning Calorimetry ◽  
Melt Mixing ◽  
Butylene Succinate ◽  
Modulated Differential Scanning Calorimetry ◽  
Thermal Stability Of

This article describes the thermal and thermomechanical properties of poly(butylene succinate) (PBS) and its nanocomposites. PBS nanocomposites with three different weight ratios of organically modified synthetic fluorine mica (OMSFM) have been prepared by melt-mixing in a batch mixer at 140 °C. The structure and morphology of the nanocomposites were characterized by X-ray diffraction (XRD) analyses and transmission electron microscopy (TEM) observations that reveal the homogeneous dispersion of the intercalated silicate layers into the PBS matrix. The thermal properties of pure PBS and the nanocomposite samples were studied by both conventional and temperature modulated differential scanning calorimetry (DSC) analyses, which show multiple melting behavior of the PBS matrix. The investigation of the thermomechanical properties was performed by dynamic mechanical analysis. Results reveal significant improvement in the storage modulus of neat PBS upon addition of OMSFM. The tensile modulus of neat PBS is also increased substantially with the addition of OMSFM, however, the strength at yield and elongation at break of neat PBS systematically decreases with the loading of OMSFM. The thermal stability of the nanocomposites compared to that of the pure polymer sample was examined under both pyrolytic and thermooxidative environments. It is shown that the thermal stability of PBS is increased moderately in the presence of 3 wt% of OMSFM, but there is no significant effect on further silicate loading in the oxidative environment. In the nitrogen environment, however, the thermal stability systematically decreases with increasing clay loading.

scholarly journals Surface modification of cellulose nanocrystals with different acid anhydrides for improved dispersion in poly(butylene succinate)

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38305-38314 ◽  
Author(s):  
Yingying He ◽  
Jiang Zhu ◽  
Wentao Wang ◽  
Haitao Ni
Keyword(s):  
Mechanical Property ◽  
Thermal Stability ◽  
Surface Modification ◽  
Cellulose Nanocrystals ◽  
Butylene Succinate ◽  
High Dispersity ◽  
Acid Anhydrides

The hydrophobic CNC was dispersed in PBS to become a high dispersity and mechanical property and thermal stability PBS/modified-CNC composite.

scholarly journals Investigating the Effect of Aluminum Diethylphosphinate on Thermal Stability, Flame Retardancy, and Mechanical Properties of Poly(butylene succinate)

2021 ◽  
Vol 8 ◽  
Author(s):  
Yiming Wang ◽  
Dayong Jiang ◽  
Xin Wen ◽  
Tao Tang ◽  
Karolina Szymańska ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardancy ◽  
Oxygen Index ◽  
Butylene Succinate ◽  
Air Atmosphere ◽  
Cone Calorimeter Test ◽  
Filler Dispersion ◽  
Thermal Stability Of ◽  
Limited Oxygen

Poly(butylene succinate) is one of the most promising biodegradable polymers, but its applications are limited by poor flame retardancy. In this work, poly(butylene succinate)/diethylphosphinate (PBS/AlPi) composites were fabricated to investigate the effect of AlPi on their thermal stability, flame retardancy, and mechanical properties. It was found that the high content of AlPi decreased the thermal stability of PBS, and the decrease became stronger under the air atmosphere. When the content of AlPi reached 25wt%, the flame retardancy was improved with limited oxygen index (LOI) of 29.5%, V0 rating in UL-94 vertical burning test, and 49.3% reduction on the peak of heat release rate (PHRR) in cone calorimeter test. Meanwhile, the addition of AlPi could improve the mechanical properties of PBS with high tensile strength and Young’s modulus, which was ascribed to the compatible effect of maleic anhydride-grafted poly(butylene succinate) (PBS-g-MA) with good filler dispersion and strong matrix-particles interaction. Thus, the AlPi was an effective flame retardant to PBS, so that PBS/AlPi composites displayed excellent flame retardancy without seriously sacrificing other comprehensive performances.

Effect of different amounts of modified talc on the mechanical, thermal, and crystallization properties of poly(butylene succinate)

2014 ◽  
Vol 34 (4) ◽  
pp. 379-385 ◽  
Author(s):  
Bingxin Sun ◽  
Chengzhi Chuai ◽  
Si Luo ◽  
Ying Guo ◽  
Chunyang Han
Keyword(s):  
Thermal Stability ◽  
Mechanical Test ◽  
Gravimetric Analysis ◽  
Scanning Calorimetry ◽  
Electron Microscopic ◽  
Butylene Succinate ◽  
Crystallinity Degree ◽  
Crystallization Properties ◽  
Twin Screw ◽  
Microscopic Studies

Abstract Poly(butylene succinate) (PBS) with different ratios of modified talc was prepared by twin-screw extruding. The effect of different loading amounts of talc on the mechanical, thermal, and crystallization properties of PBS was investigated. The mechanical test results indicate that the stiffness of the composites was increased linearly with increasing talc content, and the tensile strength and elongation stayed at relatively high levels when the talc amount is <15 phr. Thermal gravimetric analysis showed that the thermal stability of PBS composites was improved notably with a small amount (5–10 phr) of talc; however, high loading of talc did not help further improve the thermal stability. Differential scanning calorimetry data showed that the melting enthalpy (ΔHm), crystallization enthalpy (ΔHc), and crystallinity degree (Xc) decreased when the talc increased and crystallization temperature (Tc) was moving to relatively high values. The results of X-ray diffraction demonstrated that the incorporation of talc inhibited the PBS crystallization behavior significantly but did not change the crystal structure. Scanning electron microscopic studies indicated that the homogeneous dispersion and smoother fracture surfaces of the composite became inhomogeneous and coarse with higher talc loading.

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