文献类型：期刊文献

英文题名：Study on Improving the Fixation Rate of Impregnated Poplar Wood with Maltodextrin and 1,3-Dimethylol-4,5-Dihydroxyethyleneurea

作者：Cai, Mingzhen[1] Fu, Zongying[2] Cai, Yingchun[1] Zhang, Yue[3]

第一作者：Cai, Mingzhen

通信作者：Cai, YC[1]

机构：[1]Northeast Forestry Univ, Coll Mat Sci & Engn, Key Lab Biobased Mat Sci & Technol, Minist Educ, Harbin 150040, Heilongjiang, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Key Lab Wood Sci & Technol, State Forestry Adm, Beijing 100091, Peoples R China;[3]Northeast Forestry Univ, Sch Forestry, Harbin 150040, Heilongjiang, Peoples R China

年份：2019

卷号：9

期号：16

外文期刊名：APPLIED SCIENCES-BASEL

收录：;Scopus(收录号：2-s2.0-85070945162);WOS:【SCI-EXPANDED(收录号:WOS:000484444100031)】；

基金：This research was funded by the National Natural Science Foundation of China (Grant No. 31670562).

语种：英文

外文关键词：ZnCl2; temperature; poplar; fixation rate; leaching cycle; wood properties

摘要：Featured Application This paper paves the way for improving the fixation rate of impregnated wood and provides new insights into practical applications. Abstract The impregnation of poplar wood (Populus adenopoda Maxim) with 1,3-dimethylol-4,5-dihydroxyethyleneurea and maltodextrin and the effects of ZnCl2 and curing at 103 degrees C and 120 degrees C on the fixation rate and the leaching resistance of modified samples were investigated (103 degrees C curing, ZnCl2 + 103 degrees C curing, 120 degrees C curing, and ZnCl2 + 120 degrees C curing are denoted as 103, ZC-103, 120, and ZC-120, respectively), with the aim of improving the modification effect. The results showed that ZC-103 had the highest fixation rate, and its weight leaching ratio was higher than that of 120. Fourier-transform infrared spectroscopy showed that ZnCl2 did not affect the functional groups of the modified chemicals. The flexural strength and modulus and the compressive strength perpendicular to the grain were highest for ZC-103. In summary, ZC-103 exhibited the highest fixation rate, indicating that the hardener ZnCl2 bridged and increased the interfacial properties between the chemicals and cell walls and therefore increased the potential for macromolecule polycondensation between the chemicals and cell wall materials. This research paves the way for improving the fixation rate of impregnated wood and provides new insights into practical applications.