Poly(2-ethyl-2-oxazoline) as β-Nucleating Agent for Poly(lactic acid) Blends with High Transparency and Hydrophilicity

Ng, Wei Keat; Chow, W. S.; Ismail, Hanafi

doi:10.1007/s10924-021-02081-x

Cited by 7 publications

(2 citation statements)

References 85 publications

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“…Here, biodegradability of all applied materials is mandatory to maintain sustainability. Considering the hinderance of crystallization, the blending PLA with Poly(2-ethyl-2-oxazoline) showed transparency in the visible (from here on we always refer to this wavelength range) >70 % 296 (additive content up to 20 wt. %).…”

Section: Discussionmentioning

confidence: 99%

“…In the same study a decreased crystallinity is reported 295 . Poly(2-ethyl-2-oxazoline) 296 , poly(ethylene-co-vinyl acetate) 297 , PMMA [298][299][300][301] and ionomers 302 are shown to hinder PLA crystallinity in respective blends, while preserving overall transmittance (T400-800 >70 %, T400-800 >80 %, T400-800 >80 %, T400-800 >80 %, respectively). T400-700 >50 % is reported for blend of PLA and poly(ethyleneco-vinyl alcohol) modified by reactive compatibilization 303 .…”

Section: Biodegradablementioning

confidence: 99%

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Assessment of Polylactide as Optical Material

Kesting

Meyer

Seide

2023

Preprint

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Due to environmental concerns, interest in bioplastics is rising. For optical applications, materials have to meet high requirements. Polylactide (PLA), a known bioplastic, is already applied in high tech applications such as medicine. The material shows favorable optical properties and excellent resistance against photodegradation. However, the material turns hazy due to crystallization when exposed to temperatures above 55-60 °C. This renders it useless for optical applications. Clouding might be avoided by influencing PLA’s crystallization behavior. In this critical review the broad use of PLA is discussed. It is also shown, that currently no material is commercially available that meets all requirements set while being biodegradable and exclusively based on renewable feedstocks. Finally, an overview of the current state in research is provided, considering PLA-based materials with adapted crystallization behavior under the aspect of transparency. At last, recommendations for the goal of achieving highly sustainable PLA-based optical components are given.

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Section: Discussionmentioning

confidence: 99%