Fire‐retardant plastic material from oyster‐shell powder and recycled polyethylene

Chong, Mi Hwa; Chun, Byoung Chul; Chung, Yong‐Chan; Cho, Bong Gyoo

doi:10.1002/app.22484

Cited by 51 publications

(27 citation statements)

References 7 publications

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“…By contrast, the finest grades are an order of magnitude higher in price and are used to modify various properties, both during processing and in the final compounds 13 . Some studies have investigated the use of oyster-shell waste as filler in polymer [14][15] . Chong et al…”

Section: Introductionmentioning

confidence: 99%

Characterization of calcium carbonate obtained from oyster and mussel shells and incorporation in polypropylene

Hamester¹,

Balzer²,

Becker

2012

Mat. Res.

158

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There is a high content of calcium carbonate in mussel and oyster shells, which can be used in the formulation of medicine, in construction or as filler in polymer materials. This work has as its main objective to obtain calcium carbonate from mussel and oyster shells and used as filler in polypropylene compared their properties with polypropylene and commercial calcium carbonate composites. The shellfish was milling and heated at 500 °C for 2 hours. The powder obtained from shellfish were characterized by scanning electron microscopy (SEM), X-ray fluorescence, particle size distribution and abrasiveness and compared with commercial CaCO 3 and mixed with polypropylene. The thermal and mechanical properties of polypropylene with CaCO 3 obtained from oyster and mussel shells and with commercial CaCO 3 were analysed. The results showed that CaCO 3 can be obtained from oyster and mussel shell and is technically possible to replace the commercial CaCO 3 for that obtained from the shells of shellfish in polypropylene composites.

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Section: Introductionmentioning

confidence: 99%

Characterization of calcium carbonate obtained from oyster and mussel shells and incorporation in polypropylene

Hamester¹,

Balzer²,

Becker

2012

Mat. Res.

158

View full text Add to dashboard Cite

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“…This may cause a lack of data for specific researches, such this, and raise difficulties for the development of new thermoplastic composites and ways to use them, such as alternative building constructive systems and components, as also stated by Bajracharya et al (2014) in study on glass fibre reinforced mixed plastic composites. In this respect, it should be noted that if the papers Carroll et al (2001), Chong et al (2006), García et al (2009) For all other properties, wood is still more efficient than thermoplastic products and composites, i.e., to support a given load, thermoplastic-based elements need to be much larger and heavier than those of wood ( Figure 15). This makes the design of structures and elements constructed with thermoplastic-based materials more complex, as they will occupy much more space or otherwise require many more components to satisfy a structural or semi-structural function, compared to wood.…”

Section: Discussionmentioning

confidence: 99%

“…However, all of the experimental plastic-based products whose data are plotted in Figure 9 are pure nylon products (RAJA; KUMARAVEL, 2015), nylon-silica fume composites (RAJA; KUMARAVEL, 2015), PP-carbonized cow bone powder (ASUKE et al, 2012) or PP-uncarbonized cow bone powder (ASUKE et al, 2012). Coniferae wood species Dicotyledon wood species Experimental thermoplastic products Commercialized thermoplastic products (CHONG et al, 2006). However, these three studies did not measure the composite densities.…”

Section: Compressive Strength Parallel To the Grainmentioning

confidence: 99%

Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites

Dias

Alvarez

2017

Ambient. constr.

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Abstractlastic lumber and thermoplastic composites are sold as alternatives to wood products. However, many technical standards and scientific studies state that the two materials cannot be considered to have the same structural behaviour and strength. Moreover, there are many compositions of thermoplastic-based products and plenty of wood species. How different are their mechanical properties? This study compares the modulus of elasticity and the flexural, compressive, tensile and shear strengths of such materials, as well as the materials' specific mechanical properties. It analyses the properties of wood from the coniferae and dicotyledon species and those of commercialized and experimental thermoplastic-based product formulations. The data were collected from books, scientific papers and manufacturers' websites and technical data sheets, and subsequently compiled and presented in Ashby plots and bar graphs. The high values of the compressive strength and specific compressive and tensile strengths perpendicular to the grain (width direction) shown by the experimental thermoplastic composites compared to wood reveal their great potential for use in compressed elements and in functions where components are compressed or tensioned perpendicularly to the grain. However, the low specific flexural modulus and high density of thermoplastic materials limit their usage in certain civil engineering and building applications. Keywords

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“…Chong et al [133] used oyster shells coated with cetyltriammonium bromide as a flame retardant for recycled PE. The flame retardancy was attributed to the decomposition of CaCO 3 at temperatures of more than 800°C.…”

Section: Other Recycling Technologiesmentioning

confidence: 99%

Feedstock recycling of waste polymeric material

Grause

Buekens

Sakata

et al. 2011

J Mater Cycles Waste Manag

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The first International Symposium on Feedstock Recycling of Polymeric Materials (ISFR) was hosted in 1999 in Sendai, Japan. Since then, the ISFR has been held five times in different places in Asia and Europe. Each of these conferences focused on special issues covered by the Journal of Material Cycles and Waste Management. The topics included thermal processes with and without catalysts, wet processes in various solvents, the dehydrochlorination of PVC, mechanical recycling and separation techniques, as well as the treatment of biomaterials. This review is a compilation of the most interesting and important developments discussed at the ISFR during the last decade.

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Fire‐retardant plastic material from oyster‐shell powder and recycled polyethylene

Cited by 51 publications

References 7 publications

Characterization of calcium carbonate obtained from oyster and mussel shells and incorporation in polypropylene

Characterization of calcium carbonate obtained from oyster and mussel shells and incorporation in polypropylene

Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites

Feedstock recycling of waste polymeric material

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