用于高填充量微纤化纤维素与天然橡胶复合的海藻酸盐分散剂

Alginate as Dispersing Agent for Compounding Natural Rubber with High Loading Microfibrillated Cellulose.

作者信息

Supanakorn Goragot, Varatkowpairote Nanthaphak, Taokaew Siriporn, Phisalaphong Muenduen

机构信息

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.

Department of Materials Science and Technology, School of Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan.

出版信息

Polymers (Basel). 2021 Feb 1;13(3):468. doi: 10.3390/polym13030468.

Natural rubber (NR) reinforced with high loading of microfibrillated cellulose (MFC) was fabricated in the presence of sodium alginate as a thickening and dispersing agent in NR latex. The tensile strength and Young's moduli of the 50% wt. MFC loading-NR composites were 13.6 and 1085.7 MPa, which were about 11.3- and 329-times enhanced compared with those of the neat NR film. The maximum elongation at 313.3% was obtained from 30% MFC loading, which was a 3.3-fold increase of that of the NR film. The thermal stability of MFC-NR films was slightly reduced, while the glass transition temperature remained unchanged at -64 °C. The MFC-NR films exhibited high water adsorption ability, toluene resistance, and biodegradability.