Using mussel shell wastes as an additive for the production of thermally improved polypropylene composite monofilaments

Koçhan, Cemal; Selli, Figen; Erdoğan, Ümit Halis

doi:10.1080/00405000.2020.1776056

Cited by 1 publication

(1 citation statement)

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“…The more refined fragmentation, down to a few microns, of mussel shells also suggested the possibility of shifting to bio-based matrices, such as poly(lactic acid) (PLA) and polybutylene adipate-co-terephthalate (PBAT), obtaining a performance comparable to that of calcium carbonate extracted from quarries [91], although some interface issues have been also highlighted, as shown in Figure 7. To move onto the use of thermoplastic matrices via the thermal improvement obtained by the application of powder mussel shells, their introduction in the measure of 5 wt.% was proposed for polypropylene filaments produced by melt mixing or extrusion [92]. However, other attempts have also been carried out to introduce mussel shell powder (up to 10 wt.%) with different thermoplastic polymers, as is the case for polyphenylene sulfide (PPS), where tribological properties were particularly improved at 30 • [93].…”

Section: Applications Of Mussel Shells In Compositesmentioning

confidence: 99%

Biomimetic Use of Food-Waste Sources of Calcium Carbonate and Phosphate for Sustainable Materials—A Review

Piras,

Salathia,

Guzzini

et al. 2024

Materials

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Natural and renewable sources of calcium carbonate (CaCO3), also referred to as “biogenic” sources, are being increasingly investigated, as they are generated from a number of waste sources, in particular those from the food industry. The first and obvious application of biogenic calcium carbonate is in the production of cement, where CaCO3 represents the raw material for clinker. Overtime, other more added-value applications have been developed in the filling and modification of the properties of polymer composites, or in the development of biomaterials, where it is possible to transform calcium carbonate into calcium phosphate for the substitution of natural hydroxyapatite. In the majority of cases, the biological structure that is used for obtaining calcium carbonate is reduced to a powder, in which instance the granulometry distribution and the shape of the fragments represent a factor capable of influencing the effect of addition. As a result of this consideration, a number of studies also reflect on the specific characteristics of the different sources of the calcium carbonate obtained, while also referring to the species-dependent biological self-assembly process, which can be defined as a more “biomimetic” approach. In particular, a number of case studies are investigated in more depth, more specifically those involving snail shells, clam shells, mussel shells, oyster shells, eggshells, and cuttlefish bones.

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Section: Applications Of Mussel Shells In Compositesmentioning

confidence: 99%