Volume 42 Issue 3
Sep.  2023
Turn off MathJax
Article Contents
CHENG Liang, TANG Rong-qiang, ZHANG Wei-gang, ZHANG Rui-hua, XU Yun-bing. Analysis of Mechanical Properties and Chemical Composition of Bamboo Flakes after Softening Treatment[J]. JOURNAL OF BAMBOO RESEARCH, 2023, 42(3): 9-14. doi: 10.12390/jbr2022121
Citation: CHENG Liang, TANG Rong-qiang, ZHANG Wei-gang, ZHANG Rui-hua, XU Yun-bing. Analysis of Mechanical Properties and Chemical Composition of Bamboo Flakes after Softening Treatment[J]. JOURNAL OF BAMBOO RESEARCH, 2023, 42(3): 9-14. doi: 10.12390/jbr2022121

Analysis of Mechanical Properties and Chemical Composition of Bamboo Flakes after Softening Treatment

doi: 10.12390/jbr2022121
  • Received Date: 2022-10-20
  • 【Objective】In order to study the effects of different proportions of modifiers, glacial acetic acid concentration, treatment time and temperature on the bending strength, tensile strength and hardness of bamboo, to measure the changes of bending strength, tensile strength and hardness before and after modification, soa s to obtain the appropriate pencil plate treatment technology. 【Method】Bamboo was used as raw material and impregnated with glacial acetic acid and hydrogen peroxide. The chemical composition and modification effect of modified bamboo were characterized by XRD, FTIR and TG. 【Result】The bending strength and tensile strength of modified bamboo decreased with the increase of temperature, glacial acetic acid and hydrogen peroxide content, respectively. Compared with the control group, the bending strength and tensile strength of modified bamboo decreased by 44.5%, 59.9% and 44.81% respectively. The peak pyrolysis temperature of TG and DTG lagged behind, and the residue rate decreased, indicating that the content of glacial acetic acid increased, and some cellulose and hemicellulose were decomposed. XRD analysis showed that the crystallinity of modified bamboo decreased by about 1.5%, and the crystallinity decreases with the increase of treatment temperature. The enhancement of methyl and carboxyl absorption peaked at 1 250-1 377 cm-1 and hydroxyl absorption peaked at 3 415 cm-1 indicated the increase of hydrophilic groups in bamboo. 【Conclusion】 The optimal modifier concentration ratio was 1∶1, treatment temperature was 60 ℃, and treatment time was 24 hours.
  • loading
  • 包永洁. 高温热处理前后竹材主要化学成分及物理力学性能研究[D]. 南京:南京林业大学,2009.
    程瑞香,张齐生. 高温软化处理对竹材性能及旋切单板质量的影响[J]. 林业科学,2006,42(11):97-100.
    惠珍珍,迟聪聪,柳咪,等. 乙酸预处理对木质纤维素结构及性能的影响[J]. 林业工程学报,2019,4(1):88-93.
    姜海波,彭伊光. 竹材软化工艺及设备[J]. 林业机械与木工设备,2007(4):53-54.
    王淋靓,张思原,梁琼元,等. 超声波辅助碱性双氧水法提取甘蔗渣纤维素最优工艺探讨[J]. 南方农业学报,2013,44(6):1008-1013.
    王献轲,方长华,刘嵘,等. 竹材不同尺度单元纵向拉伸性能研究进展[J]. 竹子学报,2020,39(4):14 -24.
    王燕. 竹材干燥特性及干燥变色机理研究[D]. 长沙:中南林业科技大学,2015.
    魏新莉,刘君. 热处理对杨木铅笔板材性的影响[J]. 林业机械与木工设备,2010,38(7):18-20.
    吴岩,李玉顺,葛贝德,等. 改性竹材的应用与前景[J]. 森林工程,2008(6):68-71.
    余文军,应伟军,钟金环,等. 高温饱和蒸汽软化毛竹展平板的平衡含水率和尺寸稳定性[J]. 竹子学报,2021,40(1):27-31.
    张袁松,蒋瑜春,胡福强,等. 乙酸脱除天然竹纤维木质素的研究[J]. 丝绸,2012,49(7):1-5.
    周豆豆. 碱性条件下金属卟啉催化过氧化氢氧化纤维素反应的研究[D]. 长沙:湖南大学,2014.
    Chen J P,Guagliano M,Shi M H,et al. A comprehensive overview of bamboo scrimber and its new development in China[J]. European Journal of Wood and Wood Products,2021,79(2):363-379.
    Hu Y,Thalangamaarachchige V D,Acharya S,et al. Role of low-concentration acetic acid in promoting cellulose dissolution[J]. Cellulose,2018,25:4389-4405.
    Li G,Fu S Y,Zhou A J,et al. Improved Cellulose Yield in the Production of Dissolving Pulp from Bamboo Using Acetic Acid in Prehydrolysis[J]. BioResources,2015,10(1):877-886.
    Li Z Z,Luan Y,Hu J B,et al. Bamboo heat treatments and their effects on bamboo properties[J]. Construction and Building Materials,2022,331:127320.
    Liu L J,Yuan Z Q,Fan X K, et al. A review of interfacial bonding mechanism of bamboo fiber reinforced polymer composites[J]. Cellulose,2022,29(1):101-105.
    Nkeuwa W N,Zhang J L,Semple K E,et al. Bamboo-based composites:A review on fundamentals and processes of bamboo bonding[J]. Composites Part B:Engineering,2022:235:109776.
    Noori A,Lu Y B,Saffari P,et al. The effect of mercerization on thermal and mechanical properties of bamboo fibers as a biocomposite material:A review[J]. Construction and Building Materials,2021,279(5):122519.
  • 加载中

Catalog

    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

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (165) PDF downloads(68) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return