Pretreatment effects of seaweed on the thermal and mechanical properties of seaweed/polypropylene biocomposites

Jang, Young Hun; Han, Seong Ok; Sim, I Na; Kim, Hyung Il

doi:10.1016/j.compositesa.2012.11.016

Cited by 47 publications

(16 citation statements)

References 21 publications

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“…Much research has been done on the use of algae biomass as a reinforcement in composites [11][12][13]. Jang et al [14] received biocomposites using polypropylene (PP) and pre-processed algae Laminaria japonica (BA) and Enteromorpha (GA). Algae pre-treatment included treatment with ethanol at 78 • C for 3 h, followed by washing with ethanol or acetone.…”

Section: Introductionmentioning

confidence: 99%

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

et al. 2020

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The paper describes the preparation and characterization of rigid polyurethane-polyisocyanurate (PUR-PIR) foams obtained with biopolyol synthesized in the process of liquefaction of biomass from the Baltic Sea. The obtained foams differed in the content of biopolyol in polyol mixture (0–30 wt%) and the isocyanate index (IISO = 200, 250, and 300). The prepared foams were characterized in terms of processing parameters (processing times, synthesis temperature), physical (sol fraction content, apparent density) and chemical structure (Fourier transform infrared spectroscopy), microstructure (computer microtomography), as well as mechanical (compressive strength, dynamic mechanical analysis), and thermal properties (thermogravimetric analysis, thermal conductivity coefficient). The influence of biopolyol and IISO content on the above properties was determined. The addition of up to 30 wt% of biopolyol increased the reactivity of the polyol mixture, and the obtained foams showed enhanced mechanical, thermal, and insulating properties compared to foams prepared solely with petrochemical polyol. The addition of up to 30 wt% of biopolyol did not significantly affect the chemical structure and average cell size. With the increase in IISO, a slight decrease in processing times and mechanical properties was observed. As expected, foams with higher IISO exhibited a higher relative concentration of polyisocyanurate groups in their chemical structure, which was confirmed using principal component analysis (PCA).

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Section: Introductionmentioning

confidence: 99%

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

et al. 2020

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“…The higher reduction is possibly caused by the removal of SRC‐LIGS particles itself, which may result in a good tear strength. It is worth noting that the aging retention for SRC‐LIGS/NR latex composites is better than that of the unfilled NR latex films and LIGS/NR latex composites, which may be attributed to the higher thermal stability of SRC .…”

Section: Resultsmentioning

confidence: 99%

“…The utilization of seaweed fiber as a reinforcing material and the resulting effect of reinforcement loading on the properties of poly(butylene succinate) PBS and polypropylene are among the reports that have been published. Furthermore, the mechanical, dynamic mechanical, and thermomechanical properties of seaweed‐reinforced biocomposites have also been found to improve upon increasing the fiber loadings at 20 wt% , 30 wt% , and 50 wt% , respectively. Albano et al have focused on studying the properties of seaweed residues filled with high density polyethylene (HDPE) composites.…”

Section: Introductionmentioning

confidence: 99%

The influence of surface structure of low industrial grade seaweed and semi‐refined carrageenan on mechanical and physical properties of natural rubber latex composites

Samsir

Azura

Azahari

2018

Vinyl Additive Technology

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Composites consisting of natural rubber (NR) latex as their matrix and low industrial grade seaweed (LIGS) and its extractive (semirefined carrageenan, SRC-LIGS) as the filler were prepared via normal prevulcanization process. An analysis regarding the particle size and morphology of seaweed (LIGS and SRC-LIGS), as well as surface properties and mechanical properties (tensile and tear properties) of NR latex composites, was consequently generated. Furthermore, post-processing treatment for NR latex composites have also been studied, specifically involving leaching, heat aging, water absorption, and soil burial. The particle size of LIGS and SRC-LIGS obtained was recorded to be lower than 100 μm. Thus, the results are indicative of SRC-LIGS's role in improving the thermal properties of NR latex composites. After 8 weeks of soil burial, the incorporation of LIGS and SRC-LIGS into the NR latex composites has accelerated biodegradation processes, thus highlighting their advantage as biodegradable fillers. These properties have consequently contributed to SRC-LIGS/NR latex composites as a potential composite for use in biodegradable applications, such as polybag for pottery and plants. J. VINYL ADDIT. TECHNOL., 25:278-286, 2019.

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“…The use of algae for bioplastics can be carried out directly or indirectly. Direct methods include mixing polymers with algae biomass [ 19 , 20 , 21 , 22 ], and indirect methods use algae biomass to obtain a component for the synthesis of bioplastics [ 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure–Property Relationship of Polyurethane Foams Modified with Baltic Sea Biomass: Microcomputed Tomography vs. Scanning Electron Microscopy

et al. 2020

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In this paper, novel rigid polyurethane foams modified with Baltic Sea biomass were compared with traditional petro-based polyurethane foam as reference sample. A special attention was focused on complex studies of microstructure, which was visualized and measured in 3D with high-resolution microcomputed tomography (microCT) and, as commonly applied for this purpose, scanning electron microscopy (SEM). The impact of pore volume, area, shape and orientation on appearance density and thermal insulation properties of polyurethane foams was determined. The results presented in the paper confirm that microcomputed tomography is a useful tool for relatively quick estimation of polyurethane foams’ microstructure, what is crucial especially in the case of thermal insulation materials.

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Pretreatment effects of seaweed on the thermal and mechanical properties of seaweed/polypropylene biocomposites

Cited by 47 publications

References 21 publications

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

The influence of surface structure of low industrial grade seaweed and semi‐refined carrageenan on mechanical and physical properties of natural rubber latex composites

Microstructure–Property Relationship of Polyurethane Foams Modified with Baltic Sea Biomass: Microcomputed Tomography vs. Scanning Electron Microscopy

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