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首页> 外文期刊>Journal of Applied Polymer Science >The physical properties of aqueous cationic-nonionic polyurethane with poly(ethylene glycol methyl ether) side chain and its blend with aqueous cationic polyurethane
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The physical properties of aqueous cationic-nonionic polyurethane with poly(ethylene glycol methyl ether) side chain and its blend with aqueous cationic polyurethane

机译：具有聚乙二醇甲基醚侧链的阳离子-非离子水性聚氨酯及其与阳离子水性聚氨酯的共混物的物理性质

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摘要

The cationic-nonionic dispersing centers with different chain lengths of poly ethylene glycol rnethyl ether (N-PIDEA 750, N-PDEA 2000) were prepared from N-diethanol arnine (NDEA), isophorone diisocyanate (IPDI), and poly(ethylene glycol methyl ether) (PEO M-w = 750 and 2000), whereas aqueous cationic-nonjonic polyurethane (N-PDEA PU) with different side chain lengths were prepared by N-PDEA 750 (or N-PDEA 2000), 4,4-methylene bis(isocyantocyclohexane) (H12MDI), polytetramethylene glycol (PTMG 2000), ethylene diamine (EDA), and glycolic acid (GA) as cationic-nonionic dispersing center, hard segment, soft segment, chain extender, and quarternizing agent, respectively. The thermal and mechanical properties of PU casting film were then discussed. We also used N-methyldiethyolamine (NMDEA) without PEO as cationic dispersing center to synthesize aqueous cationic PU (N-MDEA PU). The PU blends were blending N-PDEA 750 PU and N-MDEA PU by different weight ratios and the physical properties of casting films and coated fabric of PU and PU blends were investigated. Regarding the thermal properties, we have found Out that the cationic-nonionic PU (N-PDEA 750 PU, N-PDEA 2000 PU) has lower T-gs, T-ms, and Delta H-H than N-MDEA PU, apart from AH(s). The N-PDEA 2000 PU with longer side-chain PEO has lower T-gs higher T and AHs NmsI', than N-PDEA 750 PU. As for mechanical property, N-DEA PU has lower tensile strength of casting film compared with N-MDEA PU. Regarding the comparison of side chain length of PEO, N-PDEA 2000 PU with longer side chain has higher tensile strength than N-PDEA 750 PU with shorter side chain length. In addition, N-PDEA 2000 PU group that shows hard property in stress-strain curve, whereas N-PDEA 750 PU shows soft property. The tensile strength of PU blends decreases as the content of N-PDEA 750 PU increases. When the low-blend ratio of N-PDEA 750 PU (e.g., 5%), the tensile strength of casting film only shows less influence that can improve the elongation effectively. In terms of coating-treated fabrics, cationic-non ionic PU-coated fabrics show lower waterproof capacity (WP) than those treated by cationic PU. However, the water vapor permeability (WVP) and antiyelloxving of the N-l"DEA 750 PU coated fabrics are significantly better than the one treated by cationic polyurethane. (c) 2006 Wiley Periodicals, Inc.
机译：由N-二乙醇胺（NDEA），异佛尔酮二异氰酸酯（IPDI）和聚（乙二醇甲基）醚）（PEO分子量= 750和2000），而具有不同侧链长度的阳离子非离子水基聚氨酯（N-PDEA PU）是通过N-PDEA 750（或N-PDEA 2000），4,4-亚甲基双（异氰基环己烷（H12MDI），聚丁二醇（PTMG 2000），乙二胺（EDA）和乙醇酸（GA）分别作为阳离子-非离子分散中心，硬链段，软链段，扩链剂和季铵化剂。然后讨论了PU流延膜的热和机械性能。我们还使用不含PEO的N-甲基二乙二胺（NMDEA）作为阳离子分散中心来合成水性阳离子PU（N-MDEA PU）。将不同重量比的N-PDEA 750 PU和N-MDEA PU共混，研究了流延膜和PU的涂布织物的物理性能。关于热性能，我们发现，除了AH以外，阳离子非离子PU（N-PDEA 750 PU，N-PDEA 2000 PU）的T-gs，T-ms和Delta HH比N-MDEA PU低（s）。与N-PDEA 750 PU相比，具有较长侧链PEO的N-PDEA 2000 PU具有较低的T-gs和较高的T和AHs NmsI'。在机械性能方面，与N-MDEA PU相比，N-DEA PU具有较低的流延膜拉伸强度。关于PEO的侧链长度的比较，具有较长侧链的N-PDEA 2000 PU具有比具有较短侧链长度的N-PDEA 750 PU更高的拉伸强度。另外，N-PDEA 2000 PU组在应力-应变曲线中显示出坚硬的特性，而N-PDEA 750 PU组则显示出软特性。随着N-PDEA 750 PU含量的增加，PU共混物的拉伸强度降低。当N-PDEA 750 PU的低掺混比（例如5％）时，流延膜的拉伸强度仅显示较少的影响，可以有效地改善伸长率。就经涂层处理的织物而言，阳离子-非离子PU涂层织物的防水能力（WP）低于经阳离子PU处理的织物。但是，N-1“ DEA 750 PU涂层织物的水蒸气渗透性（WVP）和抗泛黄性能明显优于阳离子聚氨酯处理的织物。（c）2006 Wiley Periodicals，Inc.

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