An environmentally sustainable plasticizer toughened polylactide
Introduction Polylactide (PLA), a most popular green plastic, provides a promising alternative to polymers derived from petroleum, and attracts much interest. 1–3 Because of its renewability, biodegradability, biocompatibility and competitive physical properties, PLA has thus been applied in biomedical materials, packaging, and the automotive industry.
Processes | Free Full-Text | Rheology of Green Plasticizer/Poly(vinyl
Rheology of Green Plasticizer/Poly (vinyl chloride) Blends via Time–Temperature Superposition by Roya Jamarani 1, Hanno C. Erythropel 1,2, Daniel Burkat 1, James A. Nicell 3, Richard L. Leask 1 and Milan Maric 1,* 1 Department of Chemical Engineering, McGill University, 3610 University St, Montréal, QC H3A 0C5, Canada 2
Rheology of Green Plasticizer/Poly(vinyl chloride) Blends via Time
Rheology of Green Plasticizer/Poly (vinyl chloride) Blends via Time–Temperature Superposition DOI: Green Plasticizers Authors: Roya Jamarani McGill University Hanno C Erythropel Yale...
The role of plasticizer in optimizing the rheological behavior
The addition of plasticizers is an effective approach to adjust the printability and self-supportability of ceramic pastes [33]. Fig. 10 shows the effect of the plasticizer type on the rheological behavior of the 33 vol% cordierite precursor pastes, employing 18 vol% plasticizers to replace the UV-curing resins (related to the volume of paste).
The role of plasticizer in optimizing the rheological behavior
In this study, the critical role of plasticizer in optimizing the rheology behavior of paste and property of alumina ceramics through stereolithography-based additive manufacturing was elaborated (e.g., dependencies of type and content on viscosity, curing behavior, microstructures and properties of both green body and sintered part).
- Should plasticizer be used in stereolithography-based additive manufacturing?
- Adding plasticizer is an efficient way to regulate the rheological behavior of ceramic paste and quality of green body in stereolithography-based additive manufacturing.
- Does plasticizer improve the toughness of green bodies?
- The dimensions of feature part are larger than those of the test samples, and the structure is more complex and no chamfering at right angles, which can more clearly reflect the effect of the plasticizer in improving the toughness of the green bodies and reducing the damage caused by the inner stress and shrinkage [14, 32].
- Does plasticizer type affect rheological behavior and solid loading?
- Conclusion The type and content of plasticizer had substantial effects on the rheological behavior and solid loading, leading to differences in macro / micro structure and property of the green body and sintered part. The shear shinning and thixotropy behaviors were characterized for both PEG-400 and DBP cases.
- How do plasticizers affect rheological behavior and solid loading of ceramic paste?
- The type and content of plasticizers (polyethylene glycol (PEG) and dibutyl phthalate (DBP)) had substantial effects on the rheological behavior and solid loading of ceramic paste, leading to varied macro / micro structure and strength of the green and sintered parts.
- Which plasticizer is used for UV curing?
- Two plasticizers, PEG-400 and DBP (Sinopharm, China) were used. The monomers adopted were 1,6-hexanediol diacrylate and ethoxylated (5) pentaerythritol tetraacrylate (HDDA and PPTTA, DSM, USA). The photoinitiator for UV curing was 1-hydroxy-cyclothexyl-phenyl-ketone (Irgacure184, IGM, Netherlands).
- How do plasticizers work in ceramic manufacturing?
- Generally, plasticizers have three functions in ceramic manufacturing. Firstly, the plasticizer molecules intercalate between the polymers by increasing the spacing between the polymers and reducing the van der Waals forces and friction between the molecules, thereby achieving low viscosity .
