Liquefaction of<em> Eucalyptus</em> bark and resinification of liquefied products

FU Yun-lin; MO Yin-you; QING Guan-li; ZHAO Lin; RONG Yu-quan

doi:10.11833/j.issn.2095-0756.2011.03.019

Volume 28 Issue 3

Jun. 2011

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Article Navigation > Journal of Zhejiang A&F University > 2011 > 28(3): 466-471

FU Yun-lin, MO Yin-you, QING Guan-li, ZHAO Lin, RONG Yu-quan. Liquefaction of Eucalyptus bark and resinification of liquefied products[J]. Journal of Zhejiang A&F University, 2011, 28(3): 466-471. doi: 10.11833/j.issn.2095-0756.2011.03.019

Citation:

FU Yun-lin, MO Yin-you, QING Guan-li, ZHAO Lin, RONG Yu-quan. Liquefaction of Eucalyptus bark and resinification of liquefied products[J]. Journal of Zhejiang A&F University, 2011, 28(3): 466-471. doi: 10.11833/j.issn.2095-0756.2011.03.019

Liquefaction of Eucalyptus bark and resinification of liquefied products

doi: 10.11833/j.issn.2095-0756.2011.03.019

1.
Forestry College，Guangxi University，Nanning 530004，Guangxi，China

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Corresponding author: FU Yun-lin
Publish Date: 2011-06-20

Abstract

To determine optimum catalyst concentration，phenol-Eucalyptus bark ratio，liquefaction temperature，and liquefaction time on bark liquefaction，as well as factors influencing resinification；phenol in the presence of 36% （360 gL-1） sulfuric acid was used to liquefy Eucalyptus bark and analyzed using an orthogonal design with a single factor analysis. Results showed that （1） effects on Eucalyptus bark liquefaction，from greatest to least，were：liquid ratio liquefaction temperature liquefaction time. （2） The orthogonal experiment revealed optimum liquefaction processing parameters of：phenol-Eucalyptus bark ratio of 10 ∶ 3，reactive temperature of 150℃ ，reactive time of 80 min，and a 36%（360 gL-1） sulfuric acid content of 6% for the total liquefaction. （3） To prepare resin and press plywood panels using liquefied bark as a standard，the following was selected：formaldehyde molar ratio of 1.6，NaOH molar ratio of 0.3，water molar ratio of 8.0，and a reaction temperature of 95℃. Thus，Guangxi Zhuang Autonomous Region Product Quality Supervision and Inspection Centre detected a product moisture content of 10% which was within technical requirements，an average bonding strength of 0.835 8 MPa which met the technical requirements of Type l Plywood，and formaldehyde emission of 1.5 mgL-1 which qualified for classification at E2 levels. ［Ch，1 fig. 2 tab. 13 ref.]
- chemical processing of forest products,
- Eucalyptus bark,
- liquefaction,
- resinification,
- bonding strength

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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 Eucalyptus bark and resinification of liquefied products

1. Forestry College，Guangxi University，Nanning 530004，Guangxi，China

Corresponding author: FU Yun-lin

Publish Date: 2011-06-20

Key words:

chemical processing of forest products /
Eucalyptus bark /
liquefaction /
resinification /
bonding strength

Abstract: To determine optimum catalyst concentration，phenol-Eucalyptus bark ratio，liquefaction temperature，and liquefaction time on bark liquefaction，as well as factors influencing resinification；phenol in the presence of 36% （360 gL-1） sulfuric acid was used to liquefy Eucalyptus bark and analyzed using an orthogonal design with a single factor analysis. Results showed that （1） effects on Eucalyptus bark liquefaction，from greatest to least，were：liquid ratio liquefaction temperature liquefaction time. （2） The orthogonal experiment revealed optimum liquefaction processing parameters of：phenol-Eucalyptus bark ratio of 10 ∶ 3，reactive temperature of 150℃ ，reactive time of 80 min，and a 36%（360 gL-1） sulfuric acid content of 6% for the total liquefaction. （3） To prepare resin and press plywood panels using liquefied bark as a standard，the following was selected：formaldehyde molar ratio of 1.6，NaOH molar ratio of 0.3，water molar ratio of 8.0，and a reaction temperature of 95℃. Thus，Guangxi Zhuang Autonomous Region Product Quality Supervision and Inspection Centre detected a product moisture content of 10% which was within technical requirements，an average bonding strength of 0.835 8 MPa which met the technical requirements of Type l Plywood，and formaldehyde emission of 1.5 mgL-1 which qualified for classification at E2 levels. ［Ch，1 fig. 2 tab. 13 ref.]

Liquefaction of Eucalyptus bark and resinification of liquefied products

doi: 10.11833/j.issn.2095-0756.2011.03.019

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

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Liquefaction of Eucalyptus bark and resinification of liquefied products

doi: 10.11833/j.issn.2095-0756.2011.03.019

1. Forestry College，Guangxi University，Nanning 530004，Guangxi，China

Corresponding author: FU Yun-lin

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Liquefaction of Eucalyptus bark and resinification of liquefied products

doi: 10.11833/j.issn.2095-0756.2011.03.019

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通讯作者: 陈斌, bchen63@163.com

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Liquefaction of Eucalyptus bark and resinification of liquefied products

doi: 10.11833/j.issn.2095-0756.2011.03.019

1. Forestry College，Guangxi University，Nanning 530004，Guangxi，China

Corresponding author: FU Yun-lin

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