Size effect of added LaB{sub 6} particles on optical properties of LaB{sub 6}/Polymer composites

Journal Article · Thu Dec 15 04:00:00 EST 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2011.10.036· OSTI ID:21612841

Yifei, Yuan; Lin, Zhang; Lijie, Hu; Wei, Wang ^[1]

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1. Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061 (China)

Modified LaB{sub 6} particles with sizes ranging from 50 nm to 400 nm were added into polymethyl methacrylate (PMMA) matrix in order to investigate the effect of added LaB{sub 6} particles on optical properties of LaB{sub 6}/PMMA composites. Method of in-situ polymerization was applied to prepare PMMA from raw material-methyl methacrylate (MMA), a process during which LaB{sub 6} particles were dispersed in MMA. Ultraviolet-visible-near infrared (UV-vis-NIR) absorption spectrum was used to study optical properties of the as-prepared materials. The difference in particle size could apparently affect the composites' absorption of visible light around wavelength of 600 nm. Added LaB{sub 6} particles with size of about 70 nm resulted in the best optical properties among these groups of composites. - Graphical abstract: 70 nm LaB{sub 6} particles resulted in the best performance on absorption of VIS and NIR, which could not be apparently achieved by LaB{sub 6} particles beyond nano-scale. Highlights: Black-Right-Pointing-Pointer LaB{sub 6}/PMMA composites were prepared using the method of in-situ polymerization. Black-Right-Pointing-Pointer LaB{sub 6} particles added in MMA prolonged the time needed for its pre-polymerization. Black-Right-Pointing-Pointer Nanosized LaB{sub 6} particles could obviously absorb much NIR but little VIS.

• OSTI ID: 21612841
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 12 Vol. 184; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ABSORPTION
ABSORPTION SPECTRA
BORIDES
BORON COMPOUNDS
CARBOXYLIC ACID ESTERS
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
ESTERS
LANTHANUM BORIDES
LANTHANUM COMPOUNDS
MATERIALS
METHACRYLATES
METHACRYLIC ACID ESTERS
NANOSTRUCTURES
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PARTICLE SIZE
PARTICLES
PHYSICAL PROPERTIES
PMMA
POLYACRYLATES
POLYMERIZATION
POLYMERS
POLYVINYLS
RADIATIONS
RARE EARTH COMPOUNDS
RAW MATERIALS
SIZE
SORPTION
SPECTRA
VISIBLE RADIATION