Synthesis of hydrophobic zinc borate nanoflakes and its effect on flame retardant properties of polyethylene

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Journal of Solid State Chemistry

OSTI ID:21372578

Shengli, Li ^[1]; Beihong, Long ^[2]; Zichen, Wang ^[1]; Yunhui, Zheng ^[1]; Qian, Zhang ^[3]

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1. College of Chemistry, Jilin University, Changchun 130012 (China)
2. Institute of Materials Science and Engineering, Jilin University, Changchun 130012 (China)
3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012 (China)

Zinc borate (2ZnO.3B{sub 2}O{sub 3}.3.5H{sub 2}O) has relatively high dehydration on-set temperature which property permits processing in a wide range of polymer system. But zinc borate particles are hardly dispersed in a polymer matrix so that they prevent their using in industry. To address this problem, we synthesized hydrophobic zinc borate (2ZnO.3B{sub 2}O{sub 3}.3.5H{sub 2}O) nanoflakes by employing solid-liquid reaction of zinc oxide (ZnO) and boric acid (H{sub 3}BO{sub 3}) in the presence of oleic acid. This method does not bring pollution. By conducting morphological and microscopic analyses, we found that this compound displayed nanoflake morphology with particle size of around 100-200 nm, thickness less than 100 nm and there were uniform mesopores with the diameter about 10 nm within the particles. Furthermore, our products had an effect on flame retardant of polyethylene, especially when the zinc borate was modified by oleic acid. - Graphical abstract: The contact angle of hydrophobic zinc borate nanoflakes is 129.02 deg. with added 2.0 wt% of oleic acid.

• OSTI ID: 21372578
• Journal Information: Journal of Solid State Chemistry, Vol. 183, Issue 4; Other Information: DOI: 10.1016/j.jssc.2010.02.017; PII: S0022-4596(10)00073-3; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BORATES
BORIC ACID
DEHYDRATION
MORPHOLOGY
OLEIC ACID
PARTICLE SIZE
POLYETHYLENES
SYNTHESIS
ZINC OXIDES
BORON COMPOUNDS
CARBOXYLIC ACIDS
CHALCOGENIDES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC COMPOUNDS
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
POLYOLEFINS
SIZE
ZINC COMPOUNDS