聚乳酸材料之阻燃及增韌：
I.聚乳酸/碳纖維/氫氧化鋁/奈米黏土複合材料之阻燃性質
II.利用分枝狀高分子增韌聚乳酸材料

林晏輝

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聚乳酸材料之阻燃及增韌： I.聚乳酸/碳纖維/氫氧化鋁/奈米黏土複合材料之阻燃性質 II.利用分枝狀高分子增韌聚乳酸材料

Flame retardant and Toughening Properties of Polylactide Composites： I.Thermal Properties and Flammability of Polylactide Nanocomposites with Aluminum Trihydrate/Carbon Fiber/Organoclay II.Toughening Properties of Polylactide Composites with branched Polymer

林晏輝 , Masters　　Advisor：莊祖煌　　

繁體中文

熔融混煉；聚乳酸；奈米黏土；阻燃複合材料；分枝高分子；增韌複合材料； Melt blending ； Flame retardant ； polylactide ； montmorillonite ； Hyperbranched ； Toughness

Abstract │ Reference (58) │ Times Cited (2) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

In Part I. Polylactide (PLA) nanocomposites with aluminum hydroxide (ATH),carbon fiber and montmorillonite (Clay30B) were prepared via direct melting blending using a twin-screw mixer. In addition, add carbon fiber to try to enhance the mechanical properties of nanocomposites. The exfoliated and intercalated structures of clay in the matrix were observed by TEM and XRD. The thermal degradation temperature of the PLA/CF/ATH/MMT nanocomposite determined by thermogravimetric analysis are higher than that addition ATH and carbon fiber without organoclay. The V-0 rating of the PLA nanocomposites has been achieved, and there is no melt dripping and ignited cotton. And then add carbon fiber, the mechanical properties of the PLA/CF/ATH/Clay30B nanocomposites is higher than PLA/ATH/Clay30B nanocomposites. Results showed that adding carbon fiber to replace ATH of the nanocomposites, not only enhance the mechanical properties, also maintain the flame retardancy.
In PartII. Polylactide (PLA) composites with Hyperbranched polymer were prepared via direct melting blending using a twin-screw mixer.Beacause the Hyperbranched polymer has abundant functional end groups. So add Hyperbranched polymer to try to enhance the Toughness properties of PLA composites. The thermal degradation temperature of the PLA/BP6 composite determined by thermogravimetric analysis are higher than that pure PLA.The Differential scanning calorimetry was observed the glass transition temperature(Tg) decreased with the HBP content increase in the PLA/BP6 composite. The elongation of break and impact strength of the PLA/BP6 composites huge increase when the HBP cotent over 10 percent.The SEM photos was observed brittle fracture to change ductile fracture with the HBP content increase in the PLA/BP6 composite.

Reference ( 58 ) 〈TOP〉

[1] Vink E.T.H. , Rabago K.R., Glassner D.A., and Gruber P.R., "Applications of life cycle assessment to NatureWorks™ polylactide (PLA) production," Polymer Degradation and Stability, vol. 80, pp. 403-419, 2003.
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[2] Hornsby P.R., "Application of magnesium hydroxide as a fire retardant and smoke-suppressing additive for polymers," Fire and Materials, vol. 18, pp. 269-276, 1994.
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[5] W. H. Carothers. and J. A. Arvin., "STUDIES ON POLYMERIZATION AND RING FORMATION. II. POLY-ESTERS," Journal of the American Chemical Society, vol. 51, pp. 2560–2570, 1929.
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[6] Gross R.A. and Kalra B., "Biodegradable polymers for the environment," Science, vol. 297, p. 803, 2002.
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[10] C. Nguyen, C. J. Hawker, E. H. R. D. Miller, J. L. Hedrick, R. Gauderon, and J. G. Hilborn, "Hyperbranched polyesters as nanoporosity templating agents for organosilicates," Macromolecules, vol. 33, pp. 4281-4284, 2000.
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