News Column

Studies from Louisiana State University Update Current Data on Materials Research

June 24, 2014



By a News Reporter-Staff News Editor at Journal of Technology -- New research on Materials Research is the subject of a report. According to news reporting out of Baton Rouge, Louisiana, by VerticalNews editors, research stated, "Cellulose nanoparticles (CNPs) were prepared from microcrystalline cellulose using two concentration levels of sulfuric acid (i.e., 48 wt% and 64 wt% with produced CNPs designated as CNPs-48 and CNPs-64, respectively) followed by high-pressure homogenization. CNP-reinforced polymethylmethacrylate (PMMA) composite films at various CNP loadings were made using solvent exchange and solution casting methods."

Our news journalists obtained a quote from the research from Louisiana State University, "The ultraviolet-visible (UV-vis) transmittance spectra between 400 and 800 nm showed that CNPs-64/PMMA composites had a significantly higher optical transmittance than that of CNPs-48/PMMA. Their transmittance decreased with increased CNP loadings. The addition of CNPs to the PMMA matrix reduced composite's coefficient of thermal expansion (CTE), and CNPs-64/PMMA had a lower CTE than CNPs-48/PMMA at the same CNP level. Reinforcement effect was achieved with the addition of CNPs to the PMMA matrix, especially at higher temperature levels. CNPs-64/PMMA exhibited a higher storage modulus compared with CNPs-48/PMMA material. All CNP-reinforced composites showed higher Young's modulus and tensile strengths than pure PMMA. The effect increased with increased CNP loadings in the PMMA matrix for both CNPs-64/PMMA and CNPs-48/PMMA composites."

According to the news editors, the research concluded: "CNPs affected the Young's modulus more than they affected the tensile strength."

For more information on this research see: Effect of Acid Hydrolysis Conditions on the Properties of Cellulose Nanoparticle-Reinforced Polymethylmethacrylate Composites. Materials, 2014;7(1):16-29. Materials can be contacted at: Mdpi Ag, Postfach, Ch-4005 Basel, Switzerland. (Wiley-Blackwell - www.wiley.com/; Materials - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4176)

Our news journalists report that additional information may be obtained by contacting G.P. Han, Louisiana State University, Center Agr, Sch Renewable Nat Resources, Baton Rouge, LA 70803, United States. Additional authors for this research include S.Q. Huan, J.Q. Han, Z. Zhang and Q.L. Wu.

Keywords for this news article include: Louisiana, Baton Rouge, United States, Materials Research, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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