Synthesis and characterization of poly-aluminum silicate sulphate (PASS) for ultra-low density fiberboard (ULDF) | Zendy

Tingjie Chen | Zendy; Min Niu | Zendy; Xiaodong Wang | Zendy; Wei Wei | Zendy; Jinghong Liu | Zendy; Yongqun Xie | Zendy

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Synthesis and characterization of poly-aluminum silicate sulphate (PASS) for ultra-low density fiberboard (ULDF)

Author(s) -

Tingjie Chen,

Min Niu,

Xiaodong Wang,

Wei Wei,

Jinghong Liu,

Yongqun Xie

Publication year - 2015

Publication title -

rsc advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.746

H-Index - 148

ISSN - 2046-2069

DOI - 10.1039/c5ra13996a

Subject(s) - sodium silicate , silicate , aluminium , materials science , aqueous solution , characterization (materials science) , chemical engineering , chemistry , composite material , organic chemistry , nanotechnology , engineering

The poly-aluminum silicate sulphate (PASS) for ultra-low density fiberboard (ULDF) was synthesized in the mixed aqueous solution of sodium silicate and aluminum silicate by sol-gel method. Their preparation conditions were optimized by using a response surface methodology. The effects and interactions of Si/Al molar ratio (X1), pH value (X2) and temperature (X3) on internal bond strength of ULDF were investigated. Research showed that the optimum internal bond strength (10.23 ± 0.64 kPa) was obtained under Si/Al molar ratio of 2:1, pH value of 8, and 50oC. Analyses of the Fourier transform infra-red spectroscopy spectra confirmed that Al-O-Si bonds were formed between polysilicate and Al or its hydrolysate. The particle size analysis showed that the average size of PASS was 7.52 μm. And the part of PASS entered the cell wall and made a contribution to the improvement of mechanical properties of ULDF.

Validerad; 2015; Nivå 2; 20151022 (aliwan)

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