聚丁二酸丁二醇酯/三醋酸纤维素共混物的制备、表征及生物降解。

Preparation, characterization, and biodegradation of poly(butylene succinate)/cellulose triacetate blends.

机构信息

College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China.

College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.

出版信息

Int J Biol Macromol. 2018 Jul 15;114:373-380. doi: 10.1016/j.ijbiomac.2018.03.151. Epub 2018 Mar 27.

DOI:10.1016/j.ijbiomac.2018.03.151

PMID:29596929

Abstract

Poly(butylene succinate) (PBS) and cellulose triacetate (CT) were blended using chloroform as solvent. The solid-state properties of PBS/CT blends were confirmed by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD), thermogravimetric analysis, scanning electron microscopy (SEM), and water contact angle measurements. FTIR results show that PBS and CT were physically blended. Tensile strength was not distinguished when the weight percent of CT was <15%, and Young's modulus increased gradually with increasing CT. DSC and XRD results show that the crystals were homogeneous, and crystallinity had no apparent decrease when <10% CT was added to the PBS matrix. However, the addition of more CT components could destroy the crystal behavior of PBS. SEM showed that no phase separation occurred between the two materials. The addition of CT increased the hydrophilicity of PBS/CT1-15 blends. The weight loss was nearly 90% after 16h of degradation for PBS/CT10. The appropriate proportion of PBS to CT was 90:10.

摘要

聚丁二酸丁二醇酯（PBS）和三醋酸纤维素（CT）在氯仿中混合。傅里叶变换红外光谱（FTIR）、差示扫描量热法（DSC）、X 射线衍射（XRD）、热重分析、扫描电子显微镜（SEM）和水接触角测量等方法确认了 PBS/CT 共混物的固态性能。FTIR 结果表明 PBS 和 CT 是物理混合的。当 CT 的重量百分比 <15%时，拉伸强度没有明显差异，杨氏模量随着 CT 的增加而逐渐增加。DSC 和 XRD 结果表明晶体是均匀的，当向 PBS 基体中添加 <10%的 CT 时，结晶度没有明显下降。然而，添加更多的 CT 成分可能会破坏 PBS 的晶体行为。SEM 表明两种材料之间没有发生相分离。CT 的添加增加了 PBS/CT1-15 共混物的亲水性。在降解 16 小时后，PBS/CT10 的重量损失接近 90%。PBS 和 CT 的适当比例为 90:10。