Temperature inside mats of high-frequency, hot pressed, glued and laminated bamboo

NGUYEN Thi Huong Giang; ZHANG Qisheng

doi:10.11833/j.issn.2095-0756.2015.02.001

Volume 32 Issue 2

Mar. 2015

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NGUYEN Thi Huong Giang, ZHANG Qisheng. Temperature inside mats of high-frequency, hot pressed, glued and laminated bamboo[J]. Journal of Zhejiang A&F University, 2015, 32(2): 167-172. doi: 10.11833/j.issn.2095-0756.2015.02.001

Citation:

NGUYEN Thi Huong Giang, ZHANG Qisheng. Temperature inside mats of high-frequency, hot pressed, glued and laminated bamboo[J]. Journal of Zhejiang A&F University, 2015, 32(2): 167-172. doi: 10.11833/j.issn.2095-0756.2015.02.001

Temperature inside mats of high-frequency, hot pressed, glued and laminated bamboo

doi: 10.11833/j.issn.2095-0756.2015.02.001

NGUYEN Thi Huong Giang^1,2,
ZHANG Qisheng^{1
,
,}

1.
Bamboo Engineering Research Center, College of Furniture and Industrial Design, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;
2.
College of Wood Technology, Vietnam Forestry University, Hanoi 156204, Vietnam

More Information

Author Bio:
NGUYEN Thi Huong Giang，讲师，博士，从事高频加热工艺等研究。
Received Date: 2014-05-16
Rev Recd Date: 2014-07-06
Publish Date: 2015-04-20

Abstract

To obtain variation in the temperature law for glued and laminated bamboo （GLB）, mats were hot pressed during two phases: fast heating and slow heating, with high-frequency at different moisture contents and amount of spreads. A statistical analysis on temperature variation inside the mats was conducted by Microsoft Excel software using ANOVA two-factor with replication analysis at a 95% confidence level. Results showed that when moisture content increased from 6% to 18%, the amount of spread increased from 200 to 300 gm－2, during the first phase, temperature inside the mats increased slowly with increasing moisture content below 12%, amount of spread below 250 gm－2, and pressing time, and increased sharply with moisture content above 12% and amount of spread above 250 gm－2; whereas, during the second phase temperature influence on moisture content and amount of spread inside the mats was very small at all conditions. Also during the second phase, the heating rate of the core layer decreased with an increase in pressing time. Optimum high-frequency hot pressing technological parameters for GLB manufacturing were as follows: amount of spread--300 gm－2, moisture content of bamboo splits--12%, and pressing time--7 min. It mean that temperature inside the mats are satisfactory, is necessary to make high quality of GLB in order to improve the performance of GLB.［Ch, 3 fig. 4 tab. 18 ref.］
- woody science and technology,
- moisture content,
- pressing time,
- amount of spread,
- temperature,
- glued laminated bamboo,
- high-frequency

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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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Temperature inside mats of high-frequency, hot pressed, glued and laminated bamboo

1. Bamboo Engineering Research Center, College of Furniture and Industrial Design, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;

2. College of Wood Technology, Vietnam Forestry University, Hanoi 156204, Vietnam

Author Bio:

Received Date: 2014-05-16

Rev Recd Date: 2014-07-06

Publish Date: 2015-04-20

Key words:

Abstract: To obtain variation in the temperature law for glued and laminated bamboo （GLB）, mats were hot pressed during two phases: fast heating and slow heating, with high-frequency at different moisture contents and amount of spreads. A statistical analysis on temperature variation inside the mats was conducted by Microsoft Excel software using ANOVA two-factor with replication analysis at a 95% confidence level. Results showed that when moisture content increased from 6% to 18%, the amount of spread increased from 200 to 300 gm－2, during the first phase, temperature inside the mats increased slowly with increasing moisture content below 12%, amount of spread below 250 gm－2, and pressing time, and increased sharply with moisture content above 12% and amount of spread above 250 gm－2; whereas, during the second phase temperature influence on moisture content and amount of spread inside the mats was very small at all conditions. Also during the second phase, the heating rate of the core layer decreased with an increase in pressing time. Optimum high-frequency hot pressing technological parameters for GLB manufacturing were as follows: amount of spread--300 gm－2, moisture content of bamboo splits--12%, and pressing time--7 min. It mean that temperature inside the mats are satisfactory, is necessary to make high quality of GLB in order to improve the performance of GLB.［Ch, 3 fig. 4 tab. 18 ref.］

Temperature inside mats of high-frequency, hot pressed, glued and laminated bamboo

doi: 10.11833/j.issn.2095-0756.2015.02.001

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

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