Effect of synthetic mica on the thermal properties of poly(lactic acid)

Souza, D.H.S.; Andrade, Cristina T.; Dias, Marcos L.

doi:10.4322/polimeros.2014.053

Cited by 10 publications

(5 citation statements)

References 13 publications

(18 reference statements)

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“…They reported improvements in the tensile and yield strengths and deterioration in the impact strength of the composites. Souza et al [12] studied the thermal properties of mica filled poly(lactic acid) composites at different concentrations of mica (2.5%, 5%, and 7.5%); the thermal stability of the composites, were found to improve as the amount of mica increased. M. Sreekanth et al [13] worked on reinforcing extruded Polyester composites with mica (0-40 wt.…”

mentioning

confidence: 97%

Effect of E-glass Fibers and Phlogopite Mica on the Mechanical Properties and Dimensional Stability of Rigid PVC Foams

Jamel

Khoshnoud

Gunashekar

et al. 2015

Polymer-Plastics Technology and Engineering

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In this work, short E-glass fibers (GF) and Mica were used to enhance the dimensional stability and mechanical properties of extruded rigid Polyvinyl Chloride (PVC) foams.Experimental results show that the dimensional stability increased by 50% and heat resistance of the PVC foam improved as the amount of reinforcing solids increased in the composites. The storage modulus, tensile, and flexural strengths of the composites improved by 220%, 82%, and 46%; respectively. SEM micrographs show good interaction between glass fibers and foam cells and a good dispersion and orientation of the mica flakes along the cell walls of the PVC foam.

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mentioning

confidence: 97%

Effect of E-glass Fibers and Phlogopite Mica on the Mechanical Properties and Dimensional Stability of Rigid PVC Foams

Jamel

Khoshnoud

Gunashekar

et al. 2015

Polymer-Plastics Technology and Engineering

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“…Common additives are antioxidants, flame retardants, lubricants, fungicides, UV stabilizers, and expanding agents, among others [69,70]. Fillers, whether in particle, e.g., carbon black, or fibrillar, e.g., glass fibers, form, typically aim to increase the mechanical strength and rigidity of plastics, as well as to allow their use under load and at higher temperatures; the most common reinforcing fillers are carbon black, carbon and glass fibers, mica, and aramids [71]. Foam polymers are made with the addition of blowing agents [72].…”

Section: Optimization Of the Properties Of Plasticsmentioning

confidence: 99%

“…The (EU) 2018/852 directive envisions all packaging materials on the continent to be 100% reusable, so incineration rates in 2050 are expected to be 50% (44% recycling and 6% of waste disposed of). Future studies will be published on trends in the amounts of plastic waste generated after legislative measures are adopted by countries [71].…”

Section: Plastics and The Futurementioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

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“…Copolymerizing natural polymers especially from crop residues emerges as an alternative in reduction of high cost of biodegradable polymeric materials [ 4 ] such as polyhydroxyalkanoate, polycaprolactone and polylactic acid. The high cost of these polymers is attributed to the huge cost involved during their extraction, fermentation and condensation [ 5 ]. Polysaccharides such as starch are obtained directly from cereals and tubers.…”

Section: Introductionmentioning

confidence: 99%

“…Starch, therefore, becomes affordable biobased polymers. The development of fully biodegradable polymers at low cost for the production of particleboards is currently a major challenge [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization of composite material from the copolymerized polyphenolic matrix with treated cassava peels starch

Kariuki

Wachira

Erastus

et al. 2020

Heliyon

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Conventional binders in the particleboards formulation involve use of formaldehyde resins. Epidemiologic studies show that formaldehyde is carcinogenic. Efforts to reduce formaldehyde emissions by use of scavengers has not been proven to reduce the emission. Molecular bonding of biobased adhesive molecules with lignocellulose materials provides an alternative way of producing composite material. In this study, maize stalk (MS), rice husks (RH) and sugarcane bagasse (SB) were used as sources of lignocellulose materials for particleboard formulation. SB, MS and RH were collected from their respective sites, sorted and dried. MS and RH were ground. Lignin content determination was done by drying lignocellulose material at 105 °C. Lignocellulose materials were prepared by hydrolysis of dried lignocellulose material with sodium hydroxide. Oxidized starch was prepared by oxidation of cassava peel starch using alkaline hydrogen peroxide. Particleboards were formulated through starch-lignocellulose polymerization at 60 °C compressed with 6.5 Nmm −2 pressure. Characterization of raw materials and formulated particleboards was done using XRD for mineralogical analysis, FTIR and NMR for elucidation of functional groups transformation. The results showed that esterification is the main process of chemical bonding in the particleboard formulation due to reaction between –COOH from starch and and OH- from lignocellulose. Etherification between hydroxyl groups from starch with hydroxyl groups from lignocellulose material. RH combined more through silication process with cassava peels starch than RH and SB showing materials containing high cellulose and hemicellulose content are more compatible. Composite materials formulated were used to produce medium density particleboards that can be used for making furniture and room partitioning.

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Effect of synthetic mica on the thermal properties of poly(lactic acid)

Cited by 10 publications

References 13 publications

Effect of E-glass Fibers and Phlogopite Mica on the Mechanical Properties and Dimensional Stability of Rigid PVC Foams

Effect of E-glass Fibers and Phlogopite Mica on the Mechanical Properties and Dimensional Stability of Rigid PVC Foams

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Characterization of composite material from the copolymerized polyphenolic matrix with treated cassava peels starch

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