Preparation and characterization of the plasticized
A strategy to overcome the brittleness and rigidity of polylactic acid (PLA)-based materials for food packaging applications is adding a proper plasticizer in the right amount. Here, triacetin (TA) and polyethylene glycol (PEG) were used as plasticizers in different amounts (10, 20, and 30 wt%) to produce the plasticized PLA films by the
Poly(lactic acid) (PLA) and polyhydroxyalkanoates (PHAs
2. Poly(lactic acid) PLA's chemical structure is shown in Fig. 15. The raw material used in the synthesis of PLA is the high purity monomer, lactide. Lactide can be obtained in two synthesis steps: oligomerization of lactic acid (LA) followed by cyclisation. Lactic acid optical monomers consist of L-lactic acid and D-lactic acid.
Infrared and Raman studies on polylactide acid and
Furthermore, PEG can act to increase chain mobility of PLA polymer [9]. As a plasticizer, polyethylene glycol (PEG) is a suitable plasticizer agent because its hydrophilic group interacts with the hydrophobic group on PLA, as shown in Fig 1.Solubility and miscibility of PEG will decrease with increasing molecular weight [10].
What are the suitable plasticizer for Polylactic acid (PLA
I have attached some articles that introduce the plasticizers such as: 1.Cardanol (CD), derived from renewable natural cashew nutshell liquid 2. Triethyl citrate (TEC) 3. Acetyl tributyl citrate...
Effect of Green Plasticizer on the Performance
In this study, we present the development of eco-friendly biocomposites composed of polylactic acid (PLA) and microcrystalline cellulose (MCC), using melt extrusion and compression molding processe... Effect of Green Plasticizer on the Performance of Microcrystalline Cellulose/Polylactic Acid Biocomposites | ACS Applied Polymer Materials ACS
- Which plasticizer is used to soften poly(lactic acid) (PLA)?
- In this paper, poly (lactic acid) (PLA) was toughened and softened by four different molecular size plasticizers namely; glycerol, tributyrin, trilaurin and tristearin. Among four plasticizers studied, tributyrin seems the most appropriate plasticizer for PLA due to its proper molecular size.
- What is polylactic acid (PLA)?
- Polylactic acid (PLA) is a polymer prepared from renewable sources. PLA in the melt can be plasticized using citric acid esters such as e.g. triethyl citrate or tributyl citrate in a concentration of 30 to 40%.
- How do you plasticize PLA?
- PLA in the melt can be plasticized using citric acid esters such as e.g. triethyl citrate or tributyl citrate in a concentration of 30 to 40%. Plasticizers lower the glass transition temperature entering the space between the polymer chains, thereby reducing the energy for molecular mobility and lowering the glass transition temperature.
- Which plasticizer is best for PLA?
- Among four plasticizers studied, tributyrin seems the most appropriate plasticizer for PLA due to its proper molecular size. It increased the tensile elongation at break and impact strength by around ten and three times respectively, with only 10 wt% addition.
- Are bio-based plasticizers for polylactic acid sustainable?
- Research on bio-based plasticizers for polylactic acid (PLA), an environmentally friendly and biodegradable polyester, has advanced due to the increasing focus on sustainable materials.
- What materials are used to make bio-based plasticizers for polylactic acid?
- The raw materials for the synthesis of bio-based plasticizers for PLA primarily include vegetable oils, citric acid, oleic acid, sebacic acid, adipic acid, succinic acid, cardanol, isosorbide, and other small molecules (Fig. 3). Fig. 3. Origin and structural composition of bio-based plasticizer molecules designed for polylactic acid.
