Preparation of Surface‐Modified Silica Particles from Rice Husk Ash and Its Composites with Degradable Polylactic Acid

Opaprakasit, Pakorn; Boonpa, Siriporn; Jaikaew, Narisara; Petchsuk, Atitsa; Tangboriboonrat, Pramuan

doi:10.1002/masy.201400117

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…Light transmission reduction in both the UV and visible regions is achieved in PLA/modified-silica bio-composite films. As approved by Opaprakasit et al [ 103 ], the films obtained from PLA/modified silica composites have strong potential to be used as biodegradable packaging materials with tunable gas permeability.…”

Section: Potential Applications Of Pla/silica Compositesmentioning

confidence: 99%

A Review on Synthesis, Properties, and Applications of Polylactic Acid/Silica Composites

Kaseem

Rehman

Hossain³

et al. 2021

Polymers

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Polylactic acid (PLA)/silica composites as multifunctional high-performance materials have been extensively examined in the past few years by virtue of their outstanding properties relative to neat PLA. The fabrication methods, such as melt-mixing, sol–gel, and in situ polymerization, as well as the surface functionalization of silica, used to improve the dispersion of silica in the polymer matrix are outlined. The rheological, thermal, mechanical, and biodegradation properties of PLA/silica nanocomposites are highlighted. The potential applications arising from the addition of silica nanoparticles into the PLA matrix are also described. Finally, we believe that a better understanding of the role of silica additive with current improvement strategies in the dispersion of this additive in the polymer matrix is the key for successful utilization of PLA/silica nanocomposites and to maximize their fit with industrial applications needs.

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Section: Potential Applications Of Pla/silica Compositesmentioning

confidence: 99%

A Review on Synthesis, Properties, and Applications of Polylactic Acid/Silica Composites

Kaseem

Rehman

Hossain³

et al. 2021

Polymers

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“…In the last decade, much attention has been focused on polymer composites based on inorganic filler (including silica) [16][17][18] and lignin or cellulose [14,[19][20][21]. Inorganic fillers such as silica are attractive reinforcements that are able to significantly improve thermal, mechanical and also chemical properties of PLA-based biocomposites [4,5].…”

Section: Introductionmentioning

confidence: 99%

Supermolecular structure and nucleation ability of polylactide-based composites with silica/lignin hybrid fillers

Grząbka-Zasadzińska

Kłapiszewski

Bula

et al. 2016

J Therm Anal Calorim

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In this paper, amorphous silica Syloid 244 and kraft lignin were mechanically coupled. Four hybrid materials containing silica and lignin in ratios 1:1, 2:1, 5:1 and 20:1 were prepared. As reference samples for hybrid fillers pristine silica and lignin were used. Particle size determination and microscopic observations were applied to determine dispersive and morphological properties of hybrid fillers. Fourier transform infrared spectroscopy confirmed the effective preparation of silica/lignin hybrid materials. The parameters of porous structure of examined hybrid filler were determined using the multipoint Brunauer-Emmett-Teller method and Barrett-Joyner-Halenda algorithm. Composite samples of polylactide (PLA) containing 2.5 % (w/w) of hybrid filler were extruded. Optical microscopy, wide-angle X-ray scattering and differential scanning calorimetry were applied to specify the supermolecular structure of functional PLA/hybrid composites and analyze the crystallization parameters as well as the phase transformation in PLA matrix. Silica/lignin hybrid material was found to be a filler capable of an effective crystal nucleation. The nucleating ability of silica/lignin hybrid filler in PLA matrix is related to porous properties of filler and its composition.

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“…After milling rice, rice husks are often discarded, landfilled, or burned [45]. To solve this issue of a high amount of residue generation, research incorporating rice husk silica as reinforcement for agricultural fillerreinforced PLA composites has gained significant attention in the literature [14,40,[46][47][48][49][50][51]. Prapruddivongs et al [14] studied the biodegradation behavior of PLA.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, introducing commercial SiO 2 in PLA and crosslinked PLA increased the degree and rate of biodegradation. According to Opaprakasit et al [50], PLA/silica composites can improve gas permeability and selectivity. They also reported that the materials had a strong potential to be used as biodegradable packaging films with tunable gas permeability.…”

Section: Introductionmentioning

confidence: 99%

Effect of Biobased SiO2 on the Morphological, Thermal, Mechanical, Rheological, and Permeability Properties of PLLA/PEG/SiO2 Biocomposites

et al. 2023

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Nowadays, companies and researchers are concerned about the negative consequences of using synthetic polymers and direct their efforts to create new alternatives such as biocomposites. This study investigated the effect of biobased SiO2 on the properties of poly(L-lactic acid)/SiO2 (PLLA/SiO2) and poly(L-lactic acid)/SiO2/poly(ethylene glycol) (PLLA/SiO2/PEG) composites. The SiO2 was obtained from rice husk incineration and mixed with PLLA at various concentrations (5, 10, and 15 wt.%) via melt extrusion before compression molding. Furthermore, PLLA/SiO2/PEG composites with various PEG concentrations (0, 3, 5, and 10 wt.%) with 10 wt.% SiO2 were produced. The sample morphology was studied by scanning electron microscopy (SEM) to analyze the dispersion/adhesion of SiO2 in the polymer matrix and differential scanning calorimetry (DSC) was used under isothermal and non-isothermal conditions to study the thermal properties of the samples, which was complemented by thermal stability study using thermogravimetric analysis (TGA). Rheological analysis was performed to investigate the viscoelastic behavior of the composites in the melt state. At the same time, tensile mechanical properties were obtained at room temperature to determine their properties in the solid state. DSC and X-ray diffraction analysis (XRD) were combined to determine the crystalline state of the samples. Finally, gas permeation measurements were performed using a variable pressure (constant volume) method to analyze the permeability of different gases (CO2, CH4, O2, and H2). The results showed that SiO2 decreased the PLLA chain mobility, slowing the crystallization process and lowering the gas permeability while increasing Young’s modulus, thermal stability, and viscosity. However, PEG addition increased the crystallization rate compared to the neat PLLA (+40%), and its elongation at break (+26%), leading to more flexible/ductile samples. Due to improved silica dispersion and PLLA chain mobility, the material’s viscosity and gas permeability (+50%) were also improved with PEG addition. This research uses material considered as waste to improve the properties of PLA, obtaining a material with the potential to be used for packaging.

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Preparation of Surface‐Modified Silica Particles from Rice Husk Ash and Its Composites with Degradable Polylactic Acid

Cited by 5 publications

References 13 publications

A Review on Synthesis, Properties, and Applications of Polylactic Acid/Silica Composites

A Review on Synthesis, Properties, and Applications of Polylactic Acid/Silica Composites

Supermolecular structure and nucleation ability of polylactide-based composites with silica/lignin hybrid fillers

Effect of Biobased SiO2 on the Morphological, Thermal, Mechanical, Rheological, and Permeability Properties of PLLA/PEG/SiO2 Biocomposites

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