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Preparation and Characterization of Cellulose Acetate/Poly Ethylene Glycol Blend Having High Melt Processibility  

Lee, Hae Sung (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology)
Lee, Sung Jun (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology)
Jung, Sang Won (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology)
Kim, Hyun-Chul (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology)
Kim, Eunjoo (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology)
Go, Young Jun (Business Planning Team, Korea Optical Industry Support Center)
Lee, Se Guen (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology)
Publication Information
Journal of Korean Ophthalmic Optics Society / v.17, no.1, 2012 , pp. 1-10 More about this Journal
Abstract
Purpose: Cellulose acetate (CA) was blended with polyethyleneglycol (PEG) having different molecular weight at various mixing conditions to enhance melt-processibility of CA, which might prevent the harmful effect resulted from the introduction of phthalic plasticizer. Methods: To establish optimal plasticizing conditions, CA/PEG blends were examined under various plasticizing conditions: PEG concentration, molecular weight of PEG, and plasticzing temperature. Mechanical properties of the CA/PEG blends, as well as migration and exudation of the PEG, were performed in order to evaluate the efficiency of plasticization. Results: Compared to industrial CA resin plasticized by diethyl phthalate, CA/PEG blends exhibited similar thermal plasticization. It was established that the optimum condition was to blend 30~40 phr PEG with molecular weight 400 at $175{\sim}180^{\circ}C$. CA/PEG blend showed superior glassness, PEG stability, and mechanical properties. Conclusions: CA/PEG blends would be a eco-friendly glasses frame to substitute traditional CA glasses frame prepared phthalate plasticizers.
Keywords
Cellulose acetate(CA); PEG; Plasticizer; Melt processing;
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