2017
DOI: 10.1002/app.45539
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Malic acid: A novel processing aid for thermoplastic starch/poly(butylene adipate‐co‐terephthalate) compounding and blown film extrusion

Abstract: The processing of polysaccharide-based polymer compounds represents a major challenge because these materials behave considerably different compared to their petro-based counterparts. Especially in the manufacture of thermoplastic starch (TPS)-polyester films by means of blown film extrusion, an increase in the natural material proportion generally leads to processing difficulties. In addition, higher TPS contents adversely affect mechanical material characteristics. The present study focuses on the effect of … Show more

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Cited by 11 publications
(8 citation statements)
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“…This last behavior could be a consequence of starch depolymerization caused by IA, favoring molecular mobility. Similar effects were observed when citric acid was added to starch‐poly(caprolactone) based films and in starch‐PBAT films with added malic acid …”
Section: Resultssupporting
confidence: 66%
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“…This last behavior could be a consequence of starch depolymerization caused by IA, favoring molecular mobility. Similar effects were observed when citric acid was added to starch‐poly(caprolactone) based films and in starch‐PBAT films with added malic acid …”
Section: Resultssupporting
confidence: 66%
“…Ermolovich and Makaverich described the improvement in tensile strength of LDPE/corn starch using IA‐grafted‐LDPE as a compatibilizer, a fact that was attributed to the favorable effect of the compatibilizer on the compatibility of the blend components and structure of the films. Fahrngruber et al . verified that the effects of malic acid in blown films of starch/PBAT are dependent upon the type (enantiomers) and concentration of acid.…”
Section: Resultsmentioning
confidence: 97%
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“…From the literature reported, high extrusion coating line speeds can be executed to make thin narrow necking coatings with good pinhole resistance and better heat-sealing performances [102]. However, the WVBP, and adhesion between starch and paper layer was observed to be inferior with a cracking tendency which limits its applications [103]. As discussed, special considerations are prerequisite for using conventional processing equipment to be used for biopolymer processing.…”
Section: Extrusionmentioning
confidence: 99%