竹材苄基塑料化改性的研究
Modification of benzyl-bamboo plasticization and structural analysis.
-
摘要: 以NaOH溶液作润胀剂及催化剂、氯化苄作醚化剂对竹材表面及内部进行塑化改性，并用红外光谱、扫描电镜及GC接触角分析对苄甲基化竹（塑化竹）的分子结构、微纤丝形态及表面自由能进行研究和表征。结果表明：改性竹的分子结构产生了显著变化；塑化竹表面形态发生改变，原有线性结构基本消失，表面形貌与受热皱缩的塑料极为相似；塑化竹的总表面自由能减少，表面自由能极性部分与未处理竹相比降低近一倍，其非极性部分接近PP塑料杯；塑化竹与塑料表现出较好的界面相容性；热压成型过程中塑化竹可自身黏合并呈塑料化倾向。Abstract: Plasticization and modification of the inner and outer part of bamboo were carried out with NaOH solution as swelling agents and catalysts, and benzyl chloride as etherification agent. The molecular structure, micro morphology and surface free energy of the benzylated bamboo were studied and characterized by Furier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and GC contact angle measurement. The results showed that: the molecular structure of modified bamboo varied significantly on FTIR spectrum; the surface morphology had many differences from unmodified bamboo on SEM photograph, the original linear structure disappeared, the surface morphology was more similar to the heated shrinkage plastic; total surface free energy decreased and the polarity part of free energy reduced to half as compared with that of raw bamboo, nonpolarity part of free energy was similar to that of PP plastic, there had excellent interfacial compatibility between benzylated bamboo and plastic. Furthermore, the benzylated bamboo presented selfbonding properties and tended to thermoplasticity.
-
Keywords:
- bamboo modification /
- benzylation /
- internal plasticization /
- thermoplasticity
-
-
期刊类型引用(5)
1. 石鑫，秦生磊，刘扬光，储德淼，沈晓双，刘盛全. 阻燃联合染色改性杨木单板工艺. 林业工程学报. 2025(01): 49-59 . 
百度学术
2. 左康华，徐文彪，李翔宇，时君友. 单板层积材及其数字模拟应用的研究现状与发展. 林产工业. 2021(01): 15-19 . 百度学术
3. 常思宇，邢东，王喜明，徐伟涛，姚利宏. 单板层积材生产工艺及性能研究进展. 林产工业. 2020(07): 9-11+38 . 百度学术
4. 王晓倩，于志明，张扬，王芳. 速生杨木单板染色阻燃性能研究. 西北林学院学报. 2016(05): 276-280 . 百度学术
5. 陈波，郭锦山，牟光辉，吴昊. 装饰用速生杨单板层积材制造技术开发前景. 辽宁林业科技. 2011(02): 52-53 . 百度学术
其他类型引用(6)
计量
- 文章访问数: 1585
- HTML全文浏览量: 109
- PDF下载量: 61
- 被引次数: 11
下载:
