以尿素/三乙醇胺为复配增塑剂,利用溶液共混法制备了改性PVA薄膜,通过FT-IR研究了尿素/三乙醇胺复配增塑剂与PVA间的相互作用,采用XRD,TGA,DSC表征了增塑改性PVA的结晶性能和热性能,同时分析了复配增塑剂的加入对PVA薄膜力学性能、透光性能、耐水性能的影响.实验结果表明,复配增塑剂的加入破坏了PVA分子中的氢键作用,降低了PVA的结晶度和熔点温度,热分解温度基本不变；随着复配增塑剂含量的增加,增塑改性后的PVA薄膜抗拉强度下降、断裂伸长率增加,透光性增加,溶胀率下降,溶失率增加.
参考文献
| [1] | FINCH C A.Polyvinyl alcohol[M].New York:wiley,1992 |
| [2] | 严瑞瑄.水溶性高分子[M].北京:化学工业出版社,1998:42-43. |
| [3] | 蔡邦肖,张佩琴.聚乙烯醇渗透汽化分离膜的研究进展[J].华东理工大学学报（自然科学版）,2006(02):235-240. |
| [4] | Jyongsik Jang;Dong Kweon Lee .Plasticizer effect on the melting and crystallization behavior of polyvinyl alcohol[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(26):8139-8146. |
| [5] | SAKELLARIOU P;HASSAN A;ROWE R .Plasticization of aqueous poly (vinyl alcohol) and hydroxypropyl methylcellulose with polyethylene glycols and glycerol[J].European Polymer Journal,1994,29(07):937-943. |
| [6] | LINA C A;KUB T H .Shear and elongational flow properties of contents and degrees of polyvinyl alcohol melts with different plasticizer contents and degrees of polymerization[J].Journal of Materials Processing Technology,2008,200(02):331-338. |
| [7] | 项爱民,刘万蝉,赵启辉,康智勇.聚乙烯醇改性及吹膜技术研究[J].塑料包装,2003(02):17-20. |
| [8] | NOVARA C B;FRONTANETO D' AGOGNA B V;SESTO CALENDE G D T et al.Method of producing plasticized polyvinyl alcohol and its use for the preparation of starch-based,biodegradable thermoplastic compositions[P].USA Patent:5462981,1995-10-31. |
| [9] | 刘青山.聚乙烯醇的热塑化研究进展[J].广东轻工职业技术学院学报,2005(03):4-6,15. |
| [10] | 那海宁,秦航,李丽,富露祥.淀粉基聚乙烯醇完全生物降解塑料薄膜的结构与性能[J].塑料工业,2005(10):50-52. |
| [11] | Sawatari Chie;Kondo Tetsuo .Interchain hydrogen bonds in blend films of poly(vinyl alcohol) and its derivatives with poly(ethylene oxide)[J].Macromolecules,1999(6):1949-1955. |
| [12] | 章汝平,丁马太.聚乙烯醇/壳聚糖共混膜的制备及表征[J].功能材料,2007(12):2004-2007. |
| [13] | 任德财,谢刚,张蕾,马浩翔,王百合,高明月,迟旭阳.氧化乙烯对聚甲醛结晶行为及性能影响的研究[J].黑龙江大学工程学报,2011(01):45-50. |
| [14] | Assender HE.;Windle AH. .Crystallinity in poly(vinyl alcohol). 1. An X-ray diffraction study of atactic PVOH[J].Polymer: The International Journal for the Science and Technology of Polymers,1998(18):4295-4302. |
| [15] | WEAVER K D;STOFFER J O;DAY D E .Preparation and properties of optically transparent,pressured-cured poly(methyl methacrylate) composities[J].Polymer Composites,1993,14(03):515-523. |
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