Liquefaction of Chinese fir bark in the presence of phenol

YE Jie-wang; FU Shen-yuan; YU Hong-wei; HUAI Min

doi:10.11833/j.issn.2095-0756.2011.03.018

Volume 28 Issue 3

Jun. 2011

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YE Jie-wang, FU Shen-yuan, YU Hong-wei, HUAI Min. Liquefaction of Chinese fir bark in the presence of phenol[J]. Journal of Zhejiang A&F University, 2011, 28(3): 460-465. doi: 10.11833/j.issn.2095-0756.2011.03.018

Citation:

YE Jie-wang, FU Shen-yuan, YU Hong-wei, HUAI Min. Liquefaction of Chinese fir bark in the presence of phenol[J]. Journal of Zhejiang A&F University, 2011, 28(3): 460-465. doi: 10.11833/j.issn.2095-0756.2011.03.018

Liquefaction of Chinese fir bark in the presence of phenol

doi: 10.11833/j.issn.2095-0756.2011.03.018

1.
National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization，Zhejiang A & F University，Lin’an 311300，Zhejiang，China

More Information

Corresponding author: YE Jie-wang
Publish Date: 2011-06-20

Abstract

To assess the feasibility of using Cunninghamia lanceolata（Chinese fir） bark as a raw material for the formulation of phenol based adhesives, the liquefaction technique for Chinese fir bark was studied using phenol as the liquefacient. The effects of reaction temperature, liquid ratio（phenol/Chinese fir bark），reaction time, as well as kinds and usage of catalysts ［hydrochloric acid （HCl），phosphoric acid （H3PO4），and sulfuric acid（H2SO4）] on liquefaction were investigated. Also, Fourier transform infrared spectroscopy（FTIR） was used to characterize the structure of Chinese fir bark and its liquefaction products. Results showed that，compared to HCl and H3PO4，H2SO4 had an excellent catalytic effect on the liquefaction of Chinese fir bark，and that a lower residue yield was obtained. Optimum liquefaction conditions were: liquefaction time 1.0 h，liquefaction temperature 150 C，liquid ratio 3/1，H2SO4 as a catalyst 72%（720 gkg-1），and catalyst dosage 0.15 mLg-1. With these conditions，the liquefaction residue rate was 9.97%. This indicated that the chemical components of Chinese fir bark were subjected to phenolization reactions. With additional studies of resole formation and glue mix formulations, it is anticipated that a resin adhesive from liquefied Chinese fir bark with improved bond quality can be developed. ［Ch，6 fig. 1 tab. 20 ref.］

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Liquefaction of Chinese fir bark in the presence of phenol

1. National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization，Zhejiang A & F University，Lin’an 311300，Zhejiang，China

Corresponding author: YE Jie-wang

Publish Date: 2011-06-20

Key words:

chemical processing of forest products /
Cunninghamia lanceolata（Chinese fir） bark /
liquefaction /
phenol /
Fourier transform infrared spectroscopy（FTIR）

Abstract: To assess the feasibility of using Cunninghamia lanceolata（Chinese fir） bark as a raw material for the formulation of phenol based adhesives, the liquefaction technique for Chinese fir bark was studied using phenol as the liquefacient. The effects of reaction temperature, liquid ratio（phenol/Chinese fir bark），reaction time, as well as kinds and usage of catalysts ［hydrochloric acid （HCl），phosphoric acid （H3PO4），and sulfuric acid（H2SO4）] on liquefaction were investigated. Also, Fourier transform infrared spectroscopy（FTIR） was used to characterize the structure of Chinese fir bark and its liquefaction products. Results showed that，compared to HCl and H3PO4，H2SO4 had an excellent catalytic effect on the liquefaction of Chinese fir bark，and that a lower residue yield was obtained. Optimum liquefaction conditions were: liquefaction time 1.0 h，liquefaction temperature 150 C，liquid ratio 3/1，H2SO4 as a catalyst 72%（720 gkg-1），and catalyst dosage 0.15 mLg-1. With these conditions，the liquefaction residue rate was 9.97%. This indicated that the chemical components of Chinese fir bark were subjected to phenolization reactions. With additional studies of resole formation and glue mix formulations, it is anticipated that a resin adhesive from liquefied Chinese fir bark with improved bond quality can be developed. ［Ch，6 fig. 1 tab. 20 ref.］

Liquefaction of Chinese fir bark in the presence of phenol

doi: 10.11833/j.issn.2095-0756.2011.03.018

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

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