三聚氰胺-尿素-甲醛树脂浸渍改性对杉木压缩吸能特性的影响

徐诗雨; 胡极航; 孔静; 杨志一; 吕文华

doi:10.12326/j.2096-9694.2023178

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三聚氰胺-尿素-甲醛树脂浸渍改性对杉木压缩吸能特性的影响
Effect of Melamine-Urea-Formaldehyde Resin Impregnation on Compressive Energy Absorption Properties of Chinese Fir Wood
中国林业科学研究院木材工业研究所，北京 100091
2024年38卷第3期页码：33-39
DOI： 10.12326/j.2096-9694.2023178
稿件说明：

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徐诗雨,胡极航,孔静等.三聚氰胺-尿素-甲醛树脂浸渍改性对杉木压缩吸能特性的影响[J].木材科学与技术,2024,38(03):33-39. DOI： 10.12326/j.2096-9694.2023178.

XU Shiyu,HU Jihang,KONG Jing,et al.Effect of Melamine-Urea-Formaldehyde Resin Impregnation on Compressive Energy Absorption Properties of Chinese Fir Wood[J].Chinese Journal of Wood Science and Technology,2024,38(03):33-39. DOI： 10.12326/j.2096-9694.2023178.

摘要

采用质量分数为8%的三聚氰胺-尿素-甲醛（melamine-urea-formaldehyde resin，MUF）树脂溶液浸渍处理杉木（

Cunninghamia lanceolata

），通过准静态大变形压缩测试，考察杉木改性前后的压缩破坏模式、力学性能和压缩吸能特性等。结果表明：在改性材增重率为33.22%时，抗湿胀率达64.44%，尺寸稳定性得到改善；改性处理未影响杉木的压缩破坏形态，纵向主要为纤维屈曲和撕裂，径向主要为早晚材逐层压溃破坏，弦向主要呈火柴棍状破坏；改性材弹性模量和破坏强度提高，横纹平台应力显著增大，顺纹平台应力略有降低，致密化应变减小，纵向和横向之间的差异减小；改性材径向和弦向的单位体积吸能值分别增加了30%和17%，顺纹压缩吸能值及最大吸能效率则显著降低。低质量分数的MUF树脂浸渍处理可改善杉木的尺寸稳定性，缩小其纵向和横向之间的能量吸收差异。

Abstract

In this study

Chinese fir wood was impregnated with melamine-urea-formaldehyde (MUF) resin solution with an 8% ratio

and then the quasi-static large deformation compression tests were conducted to investigate its compressive failure modes

mechanical properties

and energy absorption performance. The results were as follows: The weight percent gain of the modified wood reached 33.22%

and its anti-swelling efficiency attained 64.44%

indicating improved dimensional stability. The modification had no significant effect on the wood compression failure modes. The longitudinal failure mainly involved fiber buckling and tearing

the radial failure mainly involved layer-by-layer crushing of earlywood and latewood

while the tangential compressed wood was mostly matchstick damage. The compressive modulus of elasticity and crushing strength in modified specimen increased. Their plane stresses risen greatly in the transverse compression but decreased slightly in the longitudinal compression

and their densification strains decreased. The difference in compressive mechanical properties between longitudinal and transverse directions was reduced. The energy absorption per unit volume in the radial and tangential directions of the modified wood increased by 30% and 17% respectively

owever

both the longitudinal compression energy absorption and the maximum energy absorption efficiency decreased significantly. Low mass fraction MUF resin modification can significantly improve the dimensional stability of Chinese fir wood and reduce its energy absorption differences between longitudinal and transverse compression.

关键词

Keywords

references

孔静 , 吕文华 , 徐诗雨 , 等 . 周向约束对木材压缩吸能特性的影响 [J ] . 东北林业大学学报 , 2024 , 52 ( 4 ): 129 - 134 .

KONG J , LYU W H , XU S Y , et al . Effect of circumferential constraint on wood compressive energy absorption characteristics [J ] . Journal of Northeast Forestry University , 2024 , 52 ( 4 ): 129 - 134 .

武国芳 , 孙竞成 , 傅峰 , 等 . 横纹压缩荷载下木材的力学性能研究进展 [J ] . 木材科学与技术 , 2022 , 36 ( 5 ): 1 - 8, 30 .

WU G F , SUN J C , FU F , et al . Review of mechanical behavior of wood under compression load perpendicular-to-Grain [J ] . Chinese Journal of Wood Science and Technology , 2022 , 36 ( 5 ): 1 - 8, 30 .

赵帅 , 赵建新 , 韩国柱 . 俄罗斯红松的应变率效应及吸能特性 [J ] . 高压物理学报 , 2017 , 31 ( 3 ): 271 - 279 .

ZHAO S , ZHAO J X , HAN G Z . Strain rate effect and energy absorption characteristics of Russian pine [J ] . Chinese Journal of High Pressure Physics , 2017 , 31 ( 3 ): 271 - 279 .

BEHR G , BOLLMUS S , GELLERICH A , et al . Improvement of mechanical properties of thermally modified hardwood through melamine treatment [J ] . Wood Material Science & Engineering , 2018 , 13 ( 5 ): 262 - 270 .

杜浩佳 , 吕文华 , 孔静 , 等 . MUG生物质树脂/硅酸钠木材改性剂的优化制备 [J ] . 西北农林科技大学学报(自然科学版) , 2023 , 51 ( 1 ): 102 - 109 .

DU H J , LYU W H , KONG J , et al . Optimized preparation of MUG resin and sodium silicate modified poplar wood [J ] . Journal of Northwest A & F University (Natural Science Edition) , 2023 , 51 ( 1 ): 102 - 109 .

苏莹莹 , 孙柏玲 , 柴宇博 , 等 . 三聚氰胺-尿素-乙二醛树脂合成及其改性杨木物理力学性能 [J ] . 木材科学与技术 , 2022 , 36 ( 5 ): 56 - 62 .

SU Y Y , SUN B L , CHAI Y B , et al . Preparation of melamine-urea-glyoxal(MUG) resin and properties of MUG modified poplar [J ] . Chinese Journal of Wood Science and Technology , 2022 , 36 ( 5 ): 56 - 62 .

覃引鸾 , 董友明 , 陈龙海 , 等 . 三聚氰胺脲醛树脂改性对针叶材和阔叶材性能的影响 [J ] . 安徽农业大学学报 , 2021 , 48 ( 2 ): 191 - 198 .

QIN Y L , DONG Y M , CHEN L H , et al . Effects of modification with melamine-urea-formaldehyde resin on the properties of hardwood and softwood [J ] . Journal of Anhui Agricultural University , 2021 , 48 ( 2 ): 191 - 198 .

周欢 , 徐朝阳 , 李健昱 . 樟子松密实化前后吸能特性的对比 [J ] . 林业工程学报 , 2016 , 1 ( 3 ): 38 - 41 .

ZHOU H , XU Z Y , LI J Y . A comparison of energy absorption characteristics of Mongolian pine wood before and after densification [J ] . Journal of Forestry Engineering , 2016 , 1 ( 3 ): 38 - 41 .

吕文华 , 郑雅娴 , 柴宇博 , 等 . 大型运输容器减震用改性木材的研制 [J ] . 东北林业大学学报 , 2015 , 43 ( 2 ): 75 - 79 .

LYU W H , ZHENG Y X , CHAI Y B , et al . Preparation and characterization of special shock absorption wood [J ] . Journal of Northeast Forestry University , 2015 , 43 ( 2 ): 75 - 79 .

孔静 , 吕文华 , 胡极航 , 等 . 纳米SiO 2 /MUG复合改性剂的制备及其改性材性能研究 [J ] . 西北林学院学报 , 2024 , 39 ( 1 ): 208 - 214 .

KONG J , LYU W H , HU J H , et al . Properties of poplar wood modified by Nano-SiO 2 /Melamine Urea Glucose composite [J ] . Journal of Northwest Forestry University , 2024 , 39 ( 1 ): 208 - 214 .

YUE K , WU J , XU L , et al . Use impregnation and densification to improve mechanical properties and combustion performance of Chinese fir [J ] . Construction and Building Materials , 2020 , 241 : 118101 .

KONG J , LYU W H , XU S Y , et al . Effect of grain orientation on the energy absorption performance of Chinese fir wood under quasi-static compression [J ] . Wood Material Science & Engineering , 2024 : 1 - 8 .

孔静 , 吕文华 , 徐诗雨 , 等 . 木材压缩吸能特性的尺寸与形状效应 [J ] . 北京林业大学学报 , 2023 , 45 ( 11 ): 152 - 160 .

KONG J , LYU W H , XU S Y , et al . Size and shape effects of wood compression energy absorption characteristics [J ] . Journal of Beijing Forestry University , 2023 , 45 ( 11 ): 152 - 160 .

HA N S , LU G X . A review of recent research on bio-inspired structures and materials for energy absorption applications [J ] . Composites Part B: Engineering , 2020 , 181 : 107496 .

ALTGEN M , AWAIS M , ALTGEN D , et al . Distribution and curing reactions of melamine formaldehyde resin in cells of impregnation-modified wood [J ] . Scientific Reports , 2020 , 10 : 3366 .

WANG Z X , HAN X S , WANG S J , et al . Enhancing the thermal stability, water repellency, and flame retardancy of wood treated with succinic anhydride and melamine-urea-formaldehyde resins [J ] . Holzforschung , 2020 , 74 ( 10 ): 957 - 965 .

边明明 , 殷亚方 , 宋坤霖 , 等 . 不同压缩加载速度对杉木微观结构和力学性能影响 [J ] . 建筑材料学报 , 2012 , 15 ( 4 ): 575 - 580 .

BIAN M M , YIN Y F , SONG K L , et al . Effect of loading rate on microstructure characteristics and mechanical properties of Chinese fir [J ] . Journal of Building Materials , 2012 , 15 ( 4 ): 575 - 580 .

ZHONG W Z , ZHANG Z X , CHEN X W , et al . Multi-scale finite element simulation on large deformation behavior of wood under axial and transverse compression conditions [J ] . Acta Mechanica Sinica , 2021 , 37 ( 7 ): 1136 - 1151 .

蹇玉兰 , 吴志刚 , 曹龙 , 等 . 聚乙二醇改性三聚氰胺-尿素-甲醛树脂的研究 [J ] . 西南林业大学学报(自然科学) , 2020 , 40 ( 3 ): 167 - 171 .

JIAN Y L , WU Z G , CAO L , et al . Study on melamine-urea-formaldehyde resin toughened with polyethylene glycol [J ] . Journal of Southwest Forestry University (Natural Sciences) , 2020 , 40 ( 3 ): 167 - 171 .

冯云 , 屈伟 , 刘美宏 , 等 . 三聚氰胺甲醛树脂增韧改性研究进展 [J ] . 木材科学与技术 , 2022 , 36 ( 1 ): 17 - 21, 74 .

FENG Y , QU W , LIU M H , et al . Research review on toughening modification of melamine formaldehyde resin [J ] . Chinese Journal of Wood Science and Technology , 2022 , 36 ( 1 ): 17 - 21, 74 .

邵卓平 , 江泽慧 , 任海青 . 线弹性断裂力学原理在木材中应用的特殊性与木材顺纹理断裂 [J ] . 林业科学 , 2002 , 38 ( 6 ): 110 - 115 .

SHAO Z P , JIANG Z H , REN H Q . The particularity of application of principles of linear-elastic fracture mechanics to wood and fracture parallel to grain [J ] . Scientia Silvae Sinicae , 2002 , 38 ( 6 ): 110 - 115 .

MÜLLER U , GINDL W , TEISCHINGER A . Effects of cell anatomy on the plastic and elastic behaviour of different wood species loaded perpendicular to grain [J ] . IAWA Journal , 2003 , 24 ( 2 ): 117 - 128 .

QIN Y L , DONG Y M , LI J Z . Effect of modification with melamine-urea-formaldehyde resin on the properties of eucalyptus and poplar [J ] . Journal of Wood Chemistry and Technology , 2019 , 39 ( 5 ): 360 - 371 .

WOUTS J , HAUGOU G , OUDJENE M , et al . Strain rate effects on the compressive response of wood and energy absorption capabilities-Part A: experimental investigations [J ] . Composite Structures , 2016 , 149 : 315 - 328 .

MILTZ J , GRUENBAUM G . Evaluation of cushioning properties of plastic foams from compressive measurements [J ] . Polymer Engineering & Science , 1981 , 21 ( 15 ): 1010 - 1014 .

钟卫洲 , 宋顺成 , 黄西成 , 等 . 三种加载方向下云杉静动态力学性能研究 [J ] . 力学学报 , 2011 , 43 ( 6 ): 1141 - 1150 .

ZHONG W Z , SONG S C , HUANG X C , et al . Research on static and dynamic mechanical properties of spruce wood by three loading directions [J ] . Chinese Journal of Theoretical and Applied Mechanics , 2011 , 43 ( 6 ): 1141 - 1150 .

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