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  • Công bố khoa học và công nghệ Việt Nam

81.09

Kỹ thuật vật liệu và luyện kim

Nguyễn Châu Giang, Tạ Thị Phương Hòa, Toru Fujji, Tạ Thị Phương Hoa(1)

Phương pháp tách vi sợi xenlulo từ cây luông và ứng dụng để nâng cao độ bền mỏi của compozit Epoxy gia cường bằng sợi thủy tinh

Methods of isolation of microfibrillated cellulose from bamboo and its application to improve fatigue life of glass fiber reinforced epoxy

TC Hóa học

2011

6

710-714

0866-7144

Microfibrillated cellulose (MFC) was isolated from bamboo by two different methods. The first one is a combination of a thermomechanical treatment of bamboo culm called steam explosion and a mechanical extraction by grinding. In the second method, bamboo slabs were chemically treated with high concentration sodium hydroxide solution at elevated temperature following by grinding by stone miller. Obtained MFC were characterized in term of chemical composition, morphology and crystallinity. Two kinds of epoxy composites (EC) reinforced by woven glass fiber with addition of MFC were prepared. By comparison of the mechanical properties of these composites with those of the EC without presence of MFC, it is showed that addition of MFC resulted in little increase in tensile strength but remarkable improvement in tension-tension fatigue strength.

TTKHCNQG, CVv14