| 不同软硬段比例的封闭型水性聚氨酯对纸张性能的影响 |
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| 引用本文： | 龚 关,杨海涛,尚 尉,谢益民.不同软硬段比例的封闭型水性聚氨酯对纸张性能的影响[J].中国造纸学报,2011,26(3):13-16. |
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| 作者姓名： | 龚 关 杨海涛 尚 尉 谢益民 |
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| 作者单位： | 1. 湖北工业大学制浆造纸研究所,湖北武汉,430068
2. 山东轻工业学院制浆造纸研究所,山东济南,250353 |
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| 基金项目： | 国家自然科学基金(30871996,31070521,30901140) |
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| 摘 要： | 研究了不同软硬段比例的聚氨酯预聚体对纸张性能的影响,探讨了不同分子质量的聚乙二醇(PEG)作为扩链剂对合成聚氨酯预聚体的影响.分别合成了由咪唑、甲苯-2,4-二异氰酸酯(TDI)和6种聚乙二醇(PEG)同系物(包括PEG200、PEG400、PEG600、PEG800、PEG1000、PEG1 500)形成的封闭型水性聚氨酯预聚体,并将其用于滤纸涂布.讨论了预聚体表面涂布量为3、5、8、10 g/m2时,滤纸各项物理性能的变化.研究结果表明,软硬段比例的变化对聚氨酯化的滤纸湿抗张指数、耐折度、撕裂指数影响规律性不明显,但是随软段比例上升,滤纸的抗张指数和挺度逐渐减小.聚氨酯化后的滤纸各项物理性能均有明显增强,以咪唑-TDI-PEC400预聚体为例,在涂布量为8g/m2时,处理后滤纸的湿抗张指数、抗张指数、耐折度、撕裂指数、挺度分别提高到原滤纸的10.7倍、2.1倍、53.6倍、1.5倍、1.3倍.
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| 关 键 词： | 聚氨酯 PEG TDI 纸张性能 |
Synthesis of Polyurethanes from Different PEG and Their Application in Enhancement of Paper Properties |
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| GONG Guan,YANG Hai-tao,SHANG Wei,XIE Yi-min.Synthesis of Polyurethanes from Different PEG and Their Application in Enhancement of Paper Properties[J].Transactions of China Pulp and Paper,2011,26(3):13-16. |
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| Authors: | GONG Guan YANG Hai-tao SHANG Wei XIE Yi-min |
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| Affiliation: | GONG Guan1 YANG Hai-tao1 SHANG Wei2 XIE Yi-min1,(1.Research Institute of Pulp & Paper Engineering,Hubei University of Technology,Wuhan,Hubei Province,430068,2.Key Lab of Paper Science and Technology of Ministry of Education,Shandong Institute of Light Industry,Ji'nan,Shandong Province,250353) |
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| Abstract: | In order to understand the influence of pre-polymers of polyurethane which have different hard segments/soft segments ratio on paper properties,the effect of molecule weight of polyethylene glycol was investigated.A series of pre-polymers were synthesized with imidazole,2,4-diisocyanate(TDI) and six homologues of PEG,including PEG200,PEG400,PEG600,PEG800,PEG1000 and PEG1500.The application of the polyurethanes in paper coating was also investigated.Coating weights were 3 g/m2,5 g/m2,8 g/m2 and 10 g/m2 respe... |
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| Keywords: | polyurethane PEG TDI paper properties |
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