Page 182 - 精细化工2020年第2期

·384· 精细化工 FINE CHEMICALS 第 37 卷

相分离达到最佳状态，力学性能再次有所提升，但 fluorine- containing acrylate and micro-nanosilica[J]. Journal of
超过一定值时，材料的相分离严重，拉伸强度下降。 Wuhan University of Technology-Mater Sci Ed, 2018, 33(1):
233-241.
随着有机硅用量的增多，胶膜的断裂伸长率呈现先
[6] Yao Kejian (姚克俭), Liu Bing (刘兵), Ge Lixiang (葛礼响). Study
减小后增大的趋势，这是有机硅与相对分子质量共 on hydroxyl-terminated organo-silicone modified polyurethane resin
同作用的结果。随着有机硅用量的增加，聚氨酯的 and abrasion resistance of synthetic leather[J]. Chemical Propellants
相对分子质量减小，材料的断裂伸长率下降，当有 & Polymeric Materials (化学推进剂与高分子材料), 2018, 16(3):
机硅含量达到一定值时，有机硅良好的柔软性占主 59-62.
[7] Fan Q L, Fang J L, Chen Q M, et al. Synthesis and properties of
导作用，材料的断裂伸长率逐渐变大。
polyurethane modified with aminoethylaminopropyl poly(dimelthyl
siloxane)[J]. Journal of Applied Polymer Science, 1999, 74(10):
3 结论
2552-2558.
[8] Chen H, Fan Q L, Chen D Z, et al. Synthesis and properties of
通过结构设计，采用亲水性 Gly 和疏水性 MPSi
polyurethane modified with an aminoethylaminopropyl- substituted
共同封端 PPU，合成具有亲/疏水链端的混合封端型 polydimethylsiloxane. Ⅱ. Waterborne polyurethanes[J]. Journal of
水性聚氨酯(MEPU)。单因素优化实验表明，最佳的 Applied Polymer Science, 2015, 79(2): 295-301.
反应条件为：r=3.0、DMPA 用量为 5%、MPSi 用量 [9] Yang D Y, Qiu F X, Zhang P. Preparation and water resistance of
crosslinked waterborne polyurethaneurea[J]. Plastics Rubber &
为 15%。此时乳液稳定透明，胶膜吸水率由未改性
Composites, 2009, 38(1): 33-38.
的 16.7%减小到 9.5%；水接触角由 74.5°增加到 [10] Yang Z H, Wu G F, Zhang H X. Effects of the reagent molar ratio on
92.6°，表明 MEPU 可以同时拥有较好的乳液稳定性 the phase separation and properties of waterborne polyurethane for
和耐水性。TGA 分析表明，MEPU 的初始分解温度 application in a water-based ink binder[J]. Journal of Applied
Polymer Science, 2017, 134(42): 45406-45413.
由未改性的 264 ℃提高到 293 ℃，在热失重为 5%、
[11] Feng Chao (冯超), Ren Biye (任碧野), Wang Quan (王全), et al.
50%、90%时，MEPU 比 PU 的分解温度分别提高了 Prospects of the synthesis and applications of polyurethane modified
40、23 和 26 ℃。力学性能测试表明，由于引入的 organosilicones[J]. Guangzhou Chemical Industry (广州化工), 2010,
有机硅并没有改变聚氨酯的主体分子结构，MEPU 38(8): 6-7,22.
[12] Yu Xuekang (余学康), Chen Xin (陈昕), Wang Wusheng (王武生).
胶膜的力学性能变化不明显，与未改性的 PU 相比，
Preparation and characterization of organosiliconemodified
在 MPSi 用量为 15%时，MEPU 胶膜的拉伸强度提 waterborne polyurethane dispersion[J]. Paint & Coatings Industry
高了 0.11 MPa，断裂伸长率提高了 5.81%。进一步 (涂料工业), 2017, 47(3): 44-48.
的研究将通过亲水封端剂完全代替亲水扩链剂，使 [13] Xu H P, Qiu F X, Wang Y Y, et al. UV-curable waterborne
polyurethane-acrylate: Preparation, characterization and properties[J].
亲、疏水部分完全集中于分子链端，验证方法的可
Progress in Organic Coatings, 2012, 73(1): 47-53.
行性。 [14] Xing Huicun (邢会存), Wu Xiaoqing (吴晓青), Wu Xinxin (吴欣
欣 ), et al. Influences of ion group position on properties of
参考文献： waterborne polyurethane [J]. China Adhesives (中国胶粘剂), 2016,
[1] Wang Xinwen (王新闻), Xue Xiaowu (薛晓武), Wu Suping (吴素 25(5): 10-13.
平 ), et al. Research progress of waterborne polycarbonate [15] Lee S K, Kim B K. High solid and high stability waterborne
polyurethane[J]. Materials Review ( 材料导报 ), 2017, 31(z2): polyurethanes via ionic groups in soft segments and chain termini[J].
252-254, 262. Journal of Colloid and Interface Science, 2009, 336(1): 208-214.
[2] Hou Caiying (侯彩英), Zhou Yanming (周艳明), Han Aijie (韩艾 [16] Su Jiahui (苏嘉辉), Huang Wei (黄伟), Yang Xuejiao (杨雪娇), et al.
洁). Influence of hydrophilic group content on the water resistance of Preparation and characterization of waterborne UV curable resin of
waterborne polyurethane[J]. Applied Chemical Industry (应用化工), polyurethane-acylates with multinfunctionalities[J]. Polymer Materials
2012, 41(12): 2131-2134, 2146. Science & Engineering (高分子材料科学与工程), 2015, 31(1):
[3] Yin X, Dong C H, Luo Y J. Effects of hydrophilic groups of curing 13-18.
agents on the properties of flame-retardant two- component [17] Zhang Yuanchao (张远超), Zhu Dingyi (朱定一), Xu Shaoni (许少
waterborne coatings[J]. Colloid & Polymer Science, 2017, 295(12): 妮 ). Experiment of wettability of high polymer surface and
2423-2431. calculation of surface tensio[J]. Science Technology & Enginering
[4] Ji X, Wang H Z, Ma X L, et al. Progress in (科学技术与工程), 2009, 9(13): 3595-3600, 3606.
polydimethylsiloxane-modified waterborne polyurethanes[J]. RSC [18] Zhang Mingrui (张铭芮), Ma Xingyuan (马兴元), Zhao Zhao (赵
Advances, 2017, 7(54): 34086-34095. 昭 ), et al. Preparation of copolymerization with waterborne
[5] Cai Q, Huang J M, Wen R, et al. Preparation and surface properties polyurethane modified by comb organic silicon and its
of silicon-containing waterborne polyurethane functionalized with performance[J]. China Leather (中国皮革), 2019, 48(1): 43-48.