PREPARATION OF MICRO & NANO SIZED CELLULOSE AND ITS MODIFICATIONON THE PROPERTIES OF UP RESIN

Abstract

Abstract: Aiming at improving the properties of UP resin casting, ramie fiber was used as raw material, and micro & nano sized cellulose reinforced UP resin composite was prepared by treating ramie fiber with NaOH solution first and then followed by hydrolysis with the action of mixed acid. The mechanical and thermal properties of micro & nano cellulose reinforced UP resin composite and pure UP resin casting were comparatively investigated. The results show that, when 3wt% micro & nano cellulose is added, the tesnsile strength,tensile modulus and impact strength of the casting is increased by 55.42%, 9% and 62.42%, respectively. And, the breaking state of the casting turns from original brittle rupture into ductile one, the initial decomposition temperature of the casting increases from 363.10℃ to 369.41℃. These indicate that the micro & nano cellulsoe can not only improve the mechanical and thermal properties, but also change the breaking properties from brittle rupture to ductile one.

Key words: micro &, nano sized cellulose, unsaturated polyester resin, casting, mechanical property, thermal stability

CLC Number:

TB332

YU Wang-wang, WANG Cui-na, LEI Wen, BAO Yu-heng. PREPARATION OF MICRO & NANO SIZED CELLULOSE AND ITS MODIFICATIONON THE PROPERTIES OF UP RESIN[J]. Fiber Reinforced Plastics/Composites, 2016, 0(3): 65-69.

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