<b>Alcohol-Liquefied Wood-Based Epoxy Resins </b><b>- Relation between the Biomass Content and the Mechanical Properties </b>

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  • <b>アルコール液化木材エポキシ樹脂のバイオマス含有率と力学特性 </b>
  • アルコール液化木材エポキシ樹脂のバイオマス含有率と力学特性
  • アルコール エキカ モクザイ エポキシ ジュシ ノ バイオマス ガンユウリツ ト リキガク トクセイ

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Abstract

SynopsisThe glass transition temperatures(Tgs) and tensile properties of the alcohol-liquefied wood-based epoxy resins were studied in relation to the biomass content in the resins. Firstly, the planet-type ball-mill crushing was conducted to the wood powder as a pretreatment of the wood liquefaction. The pretreatment was effective to break the crystalline structure of the cellulose in the wood. As the results, the biomass content in the alcohol-liquefied wood was increased to 63wt%. After that, wood-based epoxy resins were synthesized from the alcohol-liquefied wood with various biomass contents. The Tgs, the tensile strengths and the tensile moduli of the cured wood-based epoxy resins increased with increasing the biomass content in the resins. The rigid chemical structure of the wood-derived molecules would result in the high Tgs and the high mechanical properties of the wood-based epoxy resins.(Received January 5, 2011 ; Accepted February 10, 2011)

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