The crystallization and thermal degradation properties of nylon 6/ poly(styrene-co-maleic anhydride)/ (Poly(ether-block-amide) (PEBA) blend

• Main Authors: Yi-Shen Hsieh, 謝佾伸
• Other Authors: Shinn-Gwo Hong
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/55832521617264413775

碩士 === 元智大學 === 化學工程與材料科學學系 === 104 === The crystallization and thermal degradation properties of nylon 6 and bio-based long carbon chain nylon elastomer (Poly(ether-block-amide) (PEBA), (nylon 11-co-polyether) blend compatibilized with poly(styrene-co-maleic anhydride) were studied by using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and X-Ray Diffraction (XRD). TGA results indicated that the thermal stability of nylon 6 was better than elastomer. The addition of elastomer decreased the thermal stability of nylon 6. The crystallization rate and the amount of crystalline γ phase of nylon 6 increased but the amount of crystalline α phase decreased after compounding because of the decrease of the molecular weight. The addition and the type of the elastomer affected the crystallization rate and the relative ratio of γ and α crystalline phases of nylon 6. The amount of elastomer added also affected the crystallization characteristics and the relative ratio of γ and α crystalline phases of nylon 6. Crystallization kinetics of the studied samples were also analyzed by using the Avrami and Ozawa equations. The kinetic parameters obtained indicated that the cooling rate and the type/amount of elastomer added all could significantly affect the crystallization kinetics of nylon 6. Keywords: Bio-based、nylon 6、PEBA elastomer、crystallization、crystallization kinetics、Poly(styrene-co-maleic anhydrid)