Page 209 - 《精细化工》2020年第11期

第 11 期 王 倩，等: 封闭型水可分散性异氰酸酯改性丙烯酸酯的制备及应用 ·2355·

由图 9 可以看出，原纸纤维表面平整顺滑，纤 33(23): 3892-3899.
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维间稀疏交织排列，孔隙较大。与原纸相比，施胶
Preparation and application of water-dispersible polyisocyanate[J].
后的纸张纤维可以看出施胶液渗入纤维内部，填充 Fine Chemicals (精细化工), 2018, 35(8): 1395-1401.
纤维孔隙，与纤维相互交联，形成了一种致密的三 [8] HAO Q Q (郝清泉), ZHANG T T (张婷婷), ZHU J H (朱建华).
Discussion on product yield and selectivity of complex reaction
维网状交联体，该结构增强了纤维间牢固性，从而 system[J]. Contemporary Chemical Industry (当代化工), 2019,
提高纸张的力学性能。PMP-3 与市售施胶剂施胶后 48(7): 1535-1538.
纸样在交联密度上有明显差异，这是由于，经 PMP-3 [9] National Papermaking Industry Standardization Technical
Committee. Polymethylene polyphenyl isocyanate—Determination
施胶液施胶的纸张在高温干燥时，可以使—NCO 解 of isocyanate content: GB/T 12009.4—1989[S]. Beijing: China
封，—NCO 同时与纸纤维和 PVA 上羟基交联，达 Standard Press(中国标准出版社), 1989.
[10] National Papermaking Industry Standardization Technical
到增强纤维牢固性的目的，同时聚丙烯酸酯本身有
Committee. Paper and board—Determination of folding endurance:
较优的成膜性，在纤维表面形成一种致密薄膜，该 GB/T 457—2008[S]. Beijing: China Standard Press(中国标准出版
结构使得纸张力学性能和疏水性得到了极大的提高。 社), 2008.
[11] National Papermaking Industry Standardization Technical
Committee. Paper and board—Determination of z-directional tensile
3 结论 strength：GB/T 31110—2014[S]. Beijing: China Standard Press(中国
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（1）采用溶液聚合法，以 3 步合成工艺制备出 [12] National Papermaking Industry Standardization Technical
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GB/T 22364—2018[S]. Beijing: China Standard Press(中国标准出
物 PAIM，GPC 测得相对分子质量 分布范围为 版社), 2018.
4
(3.8~13.5)×10 ，最大解封温度为 110 ℃。当亲疏 [13] National Papermaking Industry Standardization Technical
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时，分散液粒径为 95.68 nm，PDI 为 0.031，TSI 为 标准出版社), 2002.
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撕裂指数和挺度分别为 569 次、66.83 N·m/g、
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2
11.54 mN·m /g 和 92.16 mN。 Progress in Organic Coatings, 2016, 101: 240-244.
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