New nanocomposite materials based on plasticized poly(l-lactide) and organo-modified montmorillonites: thermal and morphological study

Thermal Properties, Crystallinity, and Oxygen Permeability of Na-montmorillonite Reinforced Plasticized Poly(lactic acid) Film

“…In detail, the effect of Na-MMT shows a different pattern when the diffraction angle ran into a small angle because the main peak of diffraction of Na-MMT can be found clearly at 2θ = 2-10° with the main peak at 2θ 5° [20]. Other researchers measured the main peak of MMT at 2θ 7-8° and basal spacing 11.7 A [21]; the main peak was at 2θ 4° and basal spacing 22 A [17].…”

“…This suggests that plasticized PLA filled interlayer space of Na-MMT during the mixing [21]. Preparing bioplastic from starch reinforced Na-MMT resulting an increasing basal spacing Na-MMT from 11.7 A to 17.1 A followed with an intercalated starch/ Na-MMT composites using plasticized PLA/PEG1000 of 20% and MMT of 3% increased basal spacing clay from 12.1 to 17.7A [20]. Related to the crystal structure of plasticized PLA/Na-MMT, this shows that the movement remains stable compared to that of plasticized PLA without MMT addition.…”

Structure, properties and interfacial interactions in poly(lactic acid)/polyurethane blends prepared by reactive processing

“…On the other hand, this polymer has some drawbacks as well, including moisture sensitivity, fast physical ageing, poor impact resistance and relatively high price [4][5][6]. As a consequence, many attempts have been made to modify it by plasticization [7][8][9][10][11][12][13], copolymerization [14][15][16][17][18][19], blending [20,21] or by the production of particulate filled or fiber reinforced composites [11][12][13][22][23][24][25][26][27][28][29][30].…”

Alev geciktiricilik özelliği geliştirilmiş ve plastikleştirilmiş poli(laktik asit)’in özelliklerine farklı nano katkıların etkisinin incelenmesi

“…Paul vd. [6] çalışmalarında, eriyik harmanlama yolu ile %20 poli(etilen glikol) 1000 (PEG 1000) ve farklı miktarlarda organo modifiye montmorillonit kullanarak, nanokompozit bazlı plastikleştirilmiş PLA hazırlamışlardır. Sabit dolgu düzeyinde, bis-(2-hidroksietil) metil amonyum katyonları ile organo-modifiye edilmiş monmorillonitin ısıl kararlılık açısından daha büyük bir etki getirdiğini, kil miktarının arttırılması ile plastikleşmiş polimer matrisinin ısıl bozunma başlangıcının geciktiğini tespit etmişlerdir.…”