I. Putu Mahendra, Phan Trung Nghia, Nguyen Thi Hong Phuong, Tring Thi Hang, Nur Fazreen Alias, Hanafi Ismail
PLLA-g-LMWNR (LMWNR - low molecular weight natural rubber) was used as a compatibilizer (1-3 wt %) of poly(L-lactic acid)/deproteinized natural rubber (PLLA/DPNR) blend (95/5 w/w). The LMWNR was prepared using TiO2/ZnO (9: 1 w/w) and H2O2 as co-catalyst. The obtained LMWNR was grafted with 0-12 wt % maleic anhydride (LMWNR-g-MA) and then with PLLA (PLLA-g-LMWNR). A significant improvement in the mechanical properties of the PLLA/DPNR blend was found in the blend that contained 3 wt % PLLA-g-LMWNR. Scanning electron microscopy showed a decrease in the pore diameter from 5.44 to 1.56 µm. The thermal analysis of PLLA/DPNR blends showed that the Tg value of PLLA phase shifted from 63.1 to 61.4°C. These results confirmed that PLLA-g-LMWNR can enhance the compatibility of the PLLA/DPNR blend. © 2021 Industrial Chemistry Research Institute. All rights reserved.
Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Jalan Terusan Ryacudu, Way Huwi, Jati Agung, Lampung Selatan, 35365, Indonesia; Center for Rubber Science and Technology, Hanoi University of Science and Technology, 1 Đi C Vit, Bách Khoa, Hà Ni, Viet Nam; School of Chemical Engineering, University of Science and Technology, 1 Đi C Vit, Bách Khoa, Hà Ni, Viet Nam; Viet Nam Institute for Building Material, 235 Nguyn Trãi, Thanh Xuân District, Hà Ni, Viet Nam; School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Transkrian, Nibong Tebal, Seberang Perai, Selatan, Penang, Malaysia
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