Film extrusion and film weldability of poly(lactic acid) plasticized with triacetine and tributyl citrate
Citations Over TimeTop 13% of 2003 papers
Abstract
Abstract Film extrusion and welding of biodegradable polymer films are important processes that must be considered in the development of compostable packaging materials. Film extrusion of poly(lactic acid) (PLA) has proved to be rather difficult because of its brittleness, but the flexibility of PLA can be improved by incorporation of a plasticizer in the material. PLA was plasticized with triacetine (TAc) and tributyl citrate (TbC). The blended materials and neat PLA were film extruded and the films were welded with constant heat (CH) welding. The films were analyzed by means of gas chromatography (GC), dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), gel permeation chromatography (GPC), contact angle measurements, and tensile testing. Storage of the plasticized films resulted in an increased crystallinity and changes in the film properties, rendering CH welding difficult. The welding process had no influence on thermal properties, such as cold crystallization temperature, melting temperature, crystallization temperature, and degree of crystallinity, of neat PLA but caused significant changes in the crystallinity of the plasticized materials. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 3239–3247, 2003
Related Papers
- → X-ray diffraction and infrared spectroscopy analyses on the crystallinity of engineered biological hydroxyapatite for medical application(2015)83 cited
- → Molecular Mechanism of Plasticizer Exudation from Polyvinyl Chloride(2023)24 cited
- → Impact of the nature and concentration of plasticizers on the ability of PVC to sorb drug(2015)36 cited
- → Solutions to reduce release behavior of plasticizers out of PVC-made equipments: binary blends of plasticizers and thermal treatment(2009)14 cited
- Migration of Plasticizers in Flexible Crosslinked PVC(2012)