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| Influence of ionic liquid and fir powder on properties of phenol-formaldehyde adhesive |
| GUO Liying; SHI Tiejun; LI Zhong; DUAN Yanpeng |
| School of Chemical Engineering; Hefei University of Technology; Hefei 230009 |
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Cite this article:
GUO Liying SHI Tiejun LI Zhong DUAN Yanpeng. Influence of ionic liquid and fir powder on properties of phenol-formaldehyde adhesive. Chin J Mater Res, 2009, 23(3): 311-316.
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Abstract A kind of composite adhesive of the ionic liquid/fir powder/phenol-formaldehyde (PF) was prepared. Effects of the fir powder and ionic liquid on properties of the composite adhesive were investigated. Curing temperature, chemical structure and thermal stability of the composite adhesive were analyzed by DSC, FTIR and TGA, respectively. The results showed that the fir powder could decrease free formaldehyde effectively of the composite adhesive and the ionic liquid could increase the adhesive properties greatly. Free formaldehyde in the composite adhesive decreased from 1.76% to 0.24% compared to conventional PF adhesive, tensile shear strength increased from 2.16 MPa to 5.39 MPa when the mass ratio of the ionic liquid to fir powder was 10 : 1, and the cured composite adhesive had no crack and was also comparatively transparent. TGA indicated that initial thermal decomposition temperature of the composite adhesive was increased, but the content of residual carbon was decreased. Capture of the fir powder after dissolved in the ionic liquid for formaldehyde and contribution of the ionic liquid to the adhesive properties had been discussed.
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Received: 28 November 2008
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| Fund: Supported by National Natural Science Foundation of China No.50773017. |
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