Improving the quality of biopolymer (poly lactic acid) with the addition of bentonite as filler

2nd International Conference on Energy Materials and Applications

材料科学;能源学

Suryani^1,2 ; Agusnar, Harry^1 ; Wirjosentono, Basuki^1 ; Rihayat, Teuku^2 ; Nurhanifa^2

Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara, Medan

20155, Indonesia^1

Departement of Chemical Engineering, Politeknik Negeri Lhokseumawe, Aceh

24301, Indonesia^2

关键词: American standard;    Bio-nanocomposite;    Interlayer spaces;    Mechanical analysis;    Morphologic structure;    Natural bentonite;    Polymer nanocomposite;    Testing materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/222/1/012008/pdf
DOI  :  10.1088/1757-899X/222/1/012008

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

PLA (Poly Lactid Acid) - Bentonite polymer nanocomposite which is a combination of natural and nanometer-scale inorganic substances created through three processes, mixing using a melt blending, molding with a hot press using specimens Standard ASTM D 638 Type IV and drying. In this study, PLA combined with two types of natural bentonite obtained from different areas to find differences in the quality of the results of characterization. To optimize the performance of filler, before mixing, bentonite have to furificate first with (NaPO3)6 and also open the interlayer space with CTAB. D-spacing of bentonite imterlayer were analyze by X-Ray difraction (XRD). Characterization bionanocomposite resulting morphologic structure was tested using a Transmission Electron Microscope (TEM). Mechanical analysis of PLA-bentonite nanocomposite in the form of tensile strength was tested using a tensile test specimens of standard American Standard for Testing Materials (ASTM) D 638 Type 4, and thermal resistance using Thermo Gravimetric Analysis (TGA).