Flame Retardant and Toughening Properties of Polylactide Blends with Siloxane-Containing Branched Polymer

• Main Authors: Chong-Wei Li, 李崇維
• Other Authors: 鄭國忠
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/6b9s22

碩士 === 國立臺北科技大學 === 化學工程研究所 === 105 === Blends of the polylactide (PLA) and branched polymer (X3) were prepared via direct melting compounding by using a brabender. The flame-retardant and thermal properties of the PLA blends were examined by limiting oxygen index (LOI), UL-94, and thermogravimetric analysis (TGA) analysis. The results showed that the limiting oxygen index (LOI) of the blends could be raised to 25.5% for the PLA with addition of the polydimethylsiloxane branched polymer. The UL-94 V-0 rating could be achieved by adding over 5% polydimethylsiloxane branched polymer. Furthermore, incorporating the siloxane-containing branched polymer into the PLA matrix could increase the elongation at break of the blend to approximately 127%, and the impact strength to 11.3 kJ m-2.