Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Thi Tuyet Mai Phan"'
Autor:
Thi Dieu Phuong Nguyen, Nhu Thi Le, Tien Manh Vu, Truong Sinh Pham, Thi Dao Phan, Ngoc Lan Pham, Thi Tuyet Mai Phan
Publikováno v:
Vietnam Journal of Science, Technology and Engineering, Vol 64, Iss 3 (2022)
In this work, cellulose was successfully extracted from pineapple leaf waste by 0.75 M NaOH at 90oC and 5 M HNO 3 at 70oC for 1.5 h and 5 h, respectively. The obtained cellulose fibres, with average diameters of 150-300 nm, were converted to carboxym
Externí odkaz:
https://doaj.org/article/f01b06ed379b4d18accafaf35a144da8
Autor:
Thi Tuyet Mai Phan, Thi Sen Ngo
Publikováno v:
Vietnam Journal of Science, Technology and Engineering, Vol 62, Iss 1 (2022)
Pectin and cellulose were successfully extracted from passion fruit peel waste. The maximum pectin yield of the process was 12.60% at pH=2 for 1.5 h. The pure cellulose obtained from the passion fruit peel waste was prepared by refluxing of the passi
Externí odkaz:
https://doaj.org/article/054304328cf74ef2b760f45a30c06b2f
Publikováno v:
Vietnam Journal of Science, Technology and Engineering, Vol 62, Iss 3 (2022)
Carboxymethyl cellulose-graft-poly(acrylic acidSodium acrylate-acrylamide) SAPs have been prepared by the free-radical grafting solution polymerization of acrylic acid (AA) and acrylamide monomers (AM) onto carboxymethyl cellulose (CMC) in the presen
Externí odkaz:
https://doaj.org/article/3900566c132647fa99adcecf2ad8451c
Publikováno v:
Vietnam Journal of Science, Technology and Engineering, Vol 63, Iss 3 (2022)
Methacrylic acid was esterified with four alcohols: 1-decanol, 1-dodecanol, 1-tetradecanol, and 1-cetanol. Afterwards, the obtained monomers were copolymerized with maleic anhydride. The synthesized monomers and copolymers were characterized by 1H-NM
Externí odkaz:
https://doaj.org/article/20d29ab87f694e0783e6faec29d20608
Autor:
Thi Tuyet Mai Phan, Ngoc Chau Chu, Van Boi Luu, Hoan Nguyen Xuan, Duc Thang Pham, Isabelle Martin, Pascal Carrière
Publikováno v:
Journal of Science: Advanced Materials and Devices, Vol 1, Iss 1, Pp 90-97 (2016)
The surface modification of synthesized nano-BaTiO3 particles was carried out using γ-aminopropyl trimethoxy silane (γ-APS) in an ethanol/water solution. The modified particles were characterized by FTIR, TGA, surface charge analysis, and by dielec
Externí odkaz:
https://doaj.org/article/812a305dc6fd425f9c6fad92a9057ff7
Publikováno v:
Vietnam Journal of Science, Technology and Engineering, Vol 60, Iss 3 (2018)
This research illustrates the results of a study on the synthesis of maleic anhydride-vinyl acetate copolymers (MAVA) with the monomer molar ratio of 1:1 by the radical polymerisation method in which benzoyl peroxide was used as a catalyst. The struc
Externí odkaz:
https://doaj.org/article/4281776d71c44cf2bd592badd5df0af9
Publikováno v:
Ministry of Science and Technology, Vietnam. 63:24-29
Methacrylic acid was esterified with four alcohols: 1-decanol, 1-dodecanol, 1-tetradecanol, and 1-cetanol. Afterwards, the obtained monomers were copolymerized with maleic anhydride. The synthesized monomers and copolymers were characterized by 1H-NM
Publikováno v:
Vietnam Journal of Science, Technology and Engineering. 62:26-32
Autor:
Pascal Carriere, Ngoc Chau Chu, Thi Tuyet Mai Phan, Van Boi Luu, Isabelle Martin, Hoan Nguyen Xuan
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 90:528-535
In this work, the effects of controlled nanoparticles aggregations of barium titanate (BaTiO 3 ) on the dielectric properties of epoxy nanocomposites are investigated in detail with respect to different experimental parameters like frequency, ceramic
Autor:
Thi Tuyet Mai Phan, Xuan Hoan Nguyen, Ngoc Chau Chu, Thanh Thuy Nguyen, Isabelle Martin, Van Boi Luu, Pascal Carriere
Publikováno v:
Polymer Composites. 37:455-461
Composites of lead zirconate titanate (PZT) 50 nm nanoparticles and epoxy resins have been produced with various PZT contents from 0 to 20 wt%. The morphology and thermal properties of prepared composites were characterized using scanning electron mi