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第 8 期 费贵强，等: 水可分散型多异氰酸酯的制备与应用 ·1401·

维表面形成一种致密薄膜，减小纸张纤维间空隙，
使纸张表面纤维致密结合，显著提高纸张的力学性
能和抗水性。
（3）对比市售施胶剂，经施胶剂 WD-HDIT 乳
液施胶后，纸张的耐折度提高了 55.8%，抗张指数
提高了 59.9%，施胶度提高了 70.6%，该施胶剂

WD-HDIT 具有良好的市场前景。
图 9 施胶前（a）、后（b）纸张表面的扫描电镜图
Fig. 9 SEM images of paper surface before (a) and after (b) 参考文献：
sizing
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cationic silicone-acrylic latex surface sizing agent[J]. Progress in
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interfacial adhesion between carbon fiber and poly(vinylidene
将施胶剂 WD-HDI 与市售施胶剂进行了综合性能的 fluoride) by an aqueous sizing agent[J]. Surface & Interface Analysis,
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表 3 施胶剂 WD-HDIT 与市售施胶剂的施胶性能 Preparation and properties of waterborne polyurethane containing
Table 3 Comparison of sizing performance between WD- maleimide group as paper sizing agent[J]. Fine Chemicals (精细化
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HDITsizingagentand commercial sizing agent [4] ShenYiding (沈一丁). Current status of special chemicals for coated
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/(N·m/g) /(N·m /Kg )
[5] Hu Guowen (胡国文). Synthesis and characterization of waterborne
WD-HDIT 67 55.8 2.003 29 polyurethane-acrylate modified by castor oil and epoxy resin[J]. Fine
Chemicals (精细化工), 2011, 28(8): 812-817.
市售施胶剂 43 34.9 1.971 17 [6] XuMengda (徐梦达), Song Qunli (宋群立), ChaiYun (柴云), et al.
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2
2
注：纯木浆未施胶原纸，定量为 80 g/m ，施胶量为 2.6 g/m ， Research (化学研究) , 2016, 27(4): 518-522.
测试条件为相对湿度 50%2%，温度为 25 ℃。 [7] FeiGuiqiang (费贵强), Wang Yongchao (王永超), Wang Haihua (王
海花 ), et al. Application of waterborne polyurethane/polyvinyl
由表 3 可知，对比市售施胶剂，经施胶剂 WD- alcohol composite surface sizing agent in the specialty paper[J].
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HDIT 乳液施胶后，纸张的耐折度提高了 55.8%，抗 18148-18152.
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张指数提高了 59.9%，施胶度提高了 70.6%。施胶 Effects of acrylic acid on properties of waterborne polyacrylate
剂 WD-HDIT 中的异氰酸酯基团与可与纸纤维羟基 adhesive emulsion[J]. Polymer materials science and Engineering
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发生共价键交联，提高纤维之间的结合力，增强纤 [9] Zhao Yanna (赵艳娜), JiDingxi (姬定西). Preparation and properties
维结构的致密性和牢 of waterborne polyurethane-acrylate modified by 4-maleimidophenol[J].
Fine Chemicals (精细化工), 2017, 34(3): 349-355.
固性，因此纸张的耐折度、抗张指数和施胶度 [10] Zhao Yanna (赵艳娜), JiDingxi (姬定西). The preparation and
显著增加。 properties of waterborne polyurethane containing epoxy group as
paper sizing agent[J]. Function Material (功能材料), 2016, 46(10):
10119-10122.
3 结论 [11] Li Jinliang (李金亮), TianYanhong (田艳红), Zhang Xuejun (张学
军), et al. Synthesis and application of hydroxyethyl methacrylate
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共聚物 P(VP-co-BA-co-CA)和施胶剂 WD-HDIT。确 [12] Liu Xuemei ( 刘雪 梅 ). The Synthesis and property of water
定施胶剂 WD-HDIT 最佳工艺为：w(VP)=5.0%， dispersible polyisocyanate [J]. Experimental Research and
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w(BA)=3.4%，w(CA)=1.3%，w(HDI)=60.0%。在此 [13] XuMengdie(徐梦蝶), Pan Yuting (潘雨婷), Dai Hongqi(戴红旗).
制备条件下，施胶剂乳液平均粒径为 76.14 nm， Study on strength increase of paper by glyoxal cross-linked starch[J]
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PDI 指数达最小值 0.103，TSI 为 0.36 g，乳液稳定 [14] Shi Yangyang(史阳阳), ShenYiding (沈一丁), FeiGuiqiang (费贵
强 ), et al. The synthesis of water-borne polyurethane/polyurea
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触角达 119.49°，耐折度达 67 次，抗张指数达 Southwest Paper Making (西南造纸), 2001, 5: 17-18.
7
3
55.8 N·m/g，纸张抗弯挺度指数 2.003 N·m /Kg ，纸 [16] Wang Haihua (王海花), Lan Jing (兰静), FeiGuiqiang (费贵强), et
al. Effect of hard and soft monomers contents on acrylate on
张环压强度指数分别为 5.1468 N·m/g。SEM 结果表 synthesis and surface sizing performance of polyurethane-acrylate
emusion[J]. Function Material (功能材料), 2014, 45(15): 15051-
明，经施胶剂 WD-HDIT 乳液施胶后，施胶剂在纤 15059