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第 36 卷第 1 期 精 细 化 工 Vol.36, No.1
201 9 年 1 月 FINE CHEMICALS Jan. 2019

造纸化学品
大豆分离蛋白纸张抗水表面施胶剂制备及性能

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马 静 1,2,3 ，陈利维 1,2 ，汪 恒 ，张家勇 ，向文静 ，由耀辉 1,2,3*
(1. 内江师范学院 化学化工学院，四川 内江 641100；2. 内江师范学院 果类废弃物资源化四川省高等学
校重点实验室，四川 内江 641100；3. 农业废弃物资源化院士工作站，四川 内江 641100)

摘要：以大豆分离蛋白（SPI）为原料、烯基琥珀酸酐（ASA）为疏水改性剂，控制 ASA 与 SPI 伯氨基的摩尔
比合成了 4 种不同酰化度的疏水大豆分离蛋白 ASA x -SPI〔x=n(ASA)/n(SPI-NH 2 )，x=0.5，1，1.5 和 2〕。通过伯
氨基含量、FTIR、UV-Vis、荧光光谱、疏水指数对 ASA x -SPI 的结构和性能进行了表征。结果表明：长链疏水
基团成功引入到了 SPI 骨架上，ASA x -SPI 的酰化度和疏水指数随着 x 的增加而增大，当 x 达到 1.5 后趋于稳定。
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ASA 1.5 -SPI 的施胶量为 0.77 g/m 时，施胶纸的初始水接触角可达 132°，水滴保留时间可达 53 min。XPS 和 SEM
分析结果显示：ASA 1.5 -SPI 在纸纤维表面形成一层粗糙的疏水薄膜。此外，纸张力学性能测试表明：ASA 1.5 -SPI
施胶纸的抗张强度由未施胶纸的 0.60 kN/m 提升至 0.67 kN/m。
关键词：大豆分离蛋白；烯基琥珀酸酐；施胶剂；抗水性；力学性能；造纸化学品
中图分类号：TS727+.2 文献标识码：A 文章编号：1003-5214 (2019) 01-0169-07

Preparation and Properties of Soy Isolate Protein Based Water-resistant
Surface Sizing Agents for Papermaking

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MA Jing 1,2,3 , CHEN Li-wei , WANG Heng , ZHANG Jia-yong ,
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XIANG Wen-jing , YOU Yao-hui 1,2,3*
（1. College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang 641100, Sichuan, China;
2. Key Laboratory of Fruit Waste Treatment and Resource Recycling of Sichuan Provincial Higher Learning Institutes,
Neijiang Normal University, Neijiang 641100, Sichuan, China; 3. Academician Workstation of Agricultural Waste
Treatment and Resource Recycling, Neijiang 641100, Sichuan, China）

Abstract: Using soy isolate protein (SPI) as raw material and alkenyl succinic anhydride (ASA) as
hydrophobic modifier, four kinds of hydrophobic soy isolate protein (ASA x-SPI, the subscript x represented
the molar rate of ASA to primary amino group of SPI, x=0.5, 1, 1.5 and 2) with different acylation degree
were prepared through controlling the molar rate of ASA to primary amino group of SPI. The structures and
properties of ASA x-SPI were characterized by means of primary amino content, FTIR, UV-Vis, fluorescence
spectrum and hydrophobic index. The results indicated that long hydrophobic chain was successfully
introduced into the SPI molecular framework, the acylation degree and hydrophobic index of ASA x-SPI
increased with x and tended to be stable when x exceeded 1.5. Subsequently, ASA 1.5-SPI was used in
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surface sizing of paper and the sizing amount was 0.77 g/m . It was found that the initial water contact
angle of ASA 1.5-SPI sized paper was 132°, the retention time of water drop was 53 min. XPS and SEM
analysis revealed that ASA 1.5-SPI formed a rough hydrophobic layer on paper fiber surface. In addition,
mechanical property tests indicated that the tensile strength of ASA 1.5-SPI sized paper was increased from
0.60 kN/m to 0.67 kN/m compared with that of base paper.
Key words: soy isolate protein; alkenyl succinic anhydride; sizing agent; water resistance; mechanical
property; paper chemicals

收稿日期：2018-05-18; 定用日期：2018-07-18; DOI: 10.13550/j.jxhg.20180365
基金项目：国家自然科学基金项目（21506103）；四川省科技厅重大科技支撑计划（2015GZ0170）；四川省教育厅重大培育项目（15CZ0026）
作者简介：马 静（1988—），女，助理馆员。联系人：由耀辉（1986—），男，博士，副教授，电话：0832-2341577，E-mail：allenyouyaohui@
163.com。