Modification and research progress of cellulose materials
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摘要: 纤维素具有来源广泛、绿色可再生、生物相容性好等诸多优点,但是纤维素由于热塑性能差、亲水性过强及机械强度不足等问题难以作为单一材料应用于生产生活中。从纤维素材料的增塑改性、疏水改性与增强改性三方面出发,对现阶段国内外开展的纤维素改性研究工作的进展进行了论述与分析,并对纤维素基材料的未来研究方向和研究重点进行了展望。Abstract: There are many advantages in cellulose such as extensive sources, recyclability, good biocompatibility, etc. However, it is difficult to be used individually because of poor thermoplastic properties, excessive hydrophilicity and insufficient mechanical strength. The research progress of cellulose modification at home and abroad are discussed and analyzed from plasticization modification, hydrophobic modification and reinforcement modification of cellulose materials, as well as research focus and development direction of cellulose-based materials are prospected in future.
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图 2 增塑剂增塑改性示意图:(a)未加入增塑剂;(b) 增塑剂进入纤维素非结晶区; (c) 增塑剂进入纤 维素结晶区; (d) 纤维素结晶区消失 ;(e) 纤维素链段迁移
Figure 2. Schematic diagram of a plasticizing modification of plasticizer: (a) No plasticizer added; (b) Plasticizer enters the non-crystalline area; (c) Plasticizer enters crystalline area; (d) Crystalline area disappears; (e) Cellulose chain stretches
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