Study on creep of one component polyurethane adhesives for green wood gluing and glulam

doi:10.3969/j.jssn.1000-2006.2009.04.026

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2009, Vol. 33 ›› Issue (04): 121-124.doi: 10.3969/j.jssn.1000-2006.2009.04.026

Previous Articles Next Articles

Study on creep of one component polyurethane adhesives for green wood gluing and glulam

NA Bin1, A.PIZZI2, LU Xiaoning1

1.College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037, China; 2.ENSTIB LERMAB, University of Nancy 1, 88051 Epinal, France

Online:2009-08-18 Published:2009-08-18

Abstract

Abstract: The chemical structure, polymerization characteristics of the commercial onecomponent polyurethane were analyzed with 13C NMR. The viscoelastic properties of bonded joints, ambient creep and shear properties of glulam beams were evaluated by thermomechanical analyses. The results showed that onecomponent polyurethane displayed a significant temperaturedependent creep, and the ambient creep was not the main factor because it was inhibited. The equilibrium moisture content (EMC) of the wood before and after bonding had a great influence on bonding performance of polyurethane. The mechanical properties of glulam from green gluing could not meet the requirement of any structure standards, but good bonding performance of wood after redrying was observed.

CLC Number:

S781

NA Bin1, A.PIZZI2, LU Xiaoning1. Study on creep of one component polyurethane adhesives for green wood gluing and glulam[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2009, 33(04): 121-124.

References

[1]Pizzi A, Rossouw D duT, Knuffel W, et al. “Honeymoon” phenolic and tanninbased fast setting adhesive systems for exterior grade fingerjoints[J]. Holzforschung Holzverwertung, 1980, 32 (6): 140-151.
[2]Pizzi A, Cameron F A. Fastset adhesives for glulam[J]. Forest Products J, 1984, 34 (9): 61-68.
[3]Pizzi A. Wood Adhesives Chemistry and Technology, Vol.1[M]. New York: Marcel Dekker INC, 1983.
[4]Pizzi A. Wood Adhesives Chemistry and Technology, Vol.2[M]. New York: Marcel Dekker INC, 1989.
[5]Cameron F A, Scheepers E. One shot coldset urethane adhesives for wet wood[J]. Holz Roh Werkstoff, 1985, 43(7): 286.
[6]Vick C B, Okkonen E A. Strength and durability of onepart polyurethane adhesive bonds to wood[J]. Forest Products Journal, 1998, 48(11/12): 71.
[7]Radovic B, Rothkopf C. Suitability of one component polyurethane adhesives for timber structures[J]. Panels & Furniture Asia, 2003(11): 34-36.
[8]Na B, Pizzi A, Delmotte L, et al. Onecomposite polyurethane adhesives for green wood gluing: structure and temperaturedependent creep[J]. Journal of Applied Polymer Science, 2005, 96(4): 1231-1243.
[9]Richter K, Schirle M A. Behaviour of 1 K PUR adhesives under increased moisture and temperature conditions[C]//Proceedings COST E13 International Symposium on Wood Based Materials. Vienna, Austria, 2002: 149-154.
[10]British Standard BS 1204. part 1, Specification for Adhesives for Close Contact Joints[S]. 1965.
[11]Radovic B, Rothkopf C. Suitability of one component polyurethane adhesives for timber structures[J]. Panels & Furniture Asia, 2003(11): 34-36.
[12]Properzi M, Simon C, Pizzi A, et al. Comparative performance of fastsetting single and separate application exterior wood adhesives for structural glulam[J]. Holzforschung Holzverwertung, 2002(54): 18-20.

Related Articles 15

[1]	ZHU Xianliang, ZHOU Changpin, JIA Cuirong, WENG Qijie, LI Fagen. Association of SNP loci and candidate genes for growth and wood density in Eucalyptus urophylla × E. tereticornis [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2021, 45(4): 143-150.
[2]	ZHU Yuehua, PAN Biao, YU Chaoguang, YIN Yunlong, ZHANG Yaoli. Comparative study on DBH growth and wood density of Taxodium hybrid ‘Zhongshanshan 118’ and Taxodium distichum [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2019, 43(6): 201-206.
[3]	YANG Tingting,GUAN Fangli,XU Aijun. Multiple trees contour extraction method based on Graph Cut algorithm [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2018, 42(06): 91-98.
[4]	WANG Dianbei, LI Jianhua,TIAN Chunyuan, ZHONG Yaqin, DUAN Lijun,YANG Xianzhong. Variation in fiber morphology among wild Pteroceltis tatarinowii populations in Hubei Province [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2018, 42(01): 169-174.
[5]	YANG Jianfei, NING Liping, YANG Liao, WANG Tianshi, CHEN Tiantian QIAN Yuying. Variation in radial increment of Lindera megaphylla and its wood anatomical characteristics [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2018, 42(01): 181-187.
[6]	YUAN Bingnan,DONG Yue,GUO Minghui. Immobilized of g-C₃N₄ on wood surface and characterization of its photodegradation property [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2018, 42(01): 193-197.
[7]	TU Kunkun, KONG Lizhuo, WANG Xiaoqing. Fabrication of superhydrophobic SiO₂/epoxy resin/fluorinated alkylsilane nanocomposite coatings on wood surfaces [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(06): 158-162.
[8]	LIU Rong,YANG Shumin, LI Hui, ZHAI Zhiwen, FEI Benhua. Characteristics of pits in the vessel element of moso bamboo (Phyllostachys edulis(Carr.)J.Houz.) [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(06): 163-168.
[9]	WANG Yuting, XU Huadong, ZHOU Hanting, CAO Yanjun, JI Li. Effects of environmental temperatures on internal moisture content of standing trees [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(05): 107-113.
[10]	WANG Xueyu, LYU Wenhua. Strengths and light fastness of the strengthening-dyeing modified poplar wood [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(05): 147-151.
[11]	GUAN Cheng, ZHANG Houjiang,MIAO Hu, ZHOU Lujing. Non-destructive determination of modulus of elasticity and in-plane shear modulus of full-size wood composite panels [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(04): 153-159.
[12]	LIU Fenglu, JIANG Fang, WANG Xiping, ZHANG Houjiang, LIU Xingkai. Stress wave propagation patterns in larch standing trees [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(03): 133-139.
[13]	GAO Xin, CAI Jiabin, JIN Juwan, ZHUANG Shouzeng. Bound water content and pore size diameter distribution in swollen cell walls determined by NMR cryoporometry [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(02): 150-156.
[14]	HE Sheng, XU Jun, WU Zaixing, BAO Yongjie, YU Hui, CHEN Yuhe. Compare of porous structure of moso bamboo and Pinus sylvestris L. lumber [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(02): 157-162.
[15]	XU Huadong, WANG Yuting, WANG Lihai, WANG Xiping. A review on ice formation and propagation in wood cells at subzero temperatures [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 41(02): 169-174.

Metrics

Comments

www.nldxb.njfu.edu.cn

Edited ＆ Published by Editorial Department of Nanjing Forestry University(Natural Sciences Edition)
Address： No.159 Longpan Road,Nanjing 210037 Jiangsu,P.R.China
E-mail ：xuebao@njfu.edu.cn , xuebao@njfu.com.cn
Telephone +86-25-85428247,85427076
Distributed by China International Book Trading Corporation P.O. Box 399, Beijing ,P.R. China

Study on creep of one component polyurethane adhesives for green wood gluing and glulam

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

Author

Reader

Reviewer