丙烯酸树脂复鞣剂的亲水性对无铬鞣皮革性能的影响

doi:10.19677/j.issn.1004-7964.2023.02.001

皮革科学与工程 ›› 2023, Vol. 33 ›› Issue (2): 1-7.doi: 10.19677/j.issn.1004-7964.2023.02.001

• 试验研究 • 下一篇

丙烯酸树脂复鞣剂的亲水性对无铬鞣皮革性能的影响

孙青永^1,3, 曾运航^1,2, 王亚楠^1,2, 余跃^1,2, 石碧^1,2,*

1.四川大学制革清洁技术国家工程实验室,四川成都 610065;
2.四川大学皮革化学与工程教育部重点实验室,四川成都 610065;
3.四川德赛尔新材料科技有限公司,四川德阳 618000

收稿日期:2022-09-23 出版日期:2023-04-01 上线日期:2023-03-21
通讯作者: *石碧（1958-）,男,教授,主要从事制革化学和制革清洁技术研究。E-mail：shibi@scu.edu.cn。
作者简介:孙青永（1987-）,男,博士。E-mail：sunqingyong168@163.com。
基金资助:
国家自然科学基金（21978176）

Effect of Hydrophilicity of Acrylic Resin Retanning Agent on Properties of Chrome-free Leather

SUN Qingyong^1,3, ZENG Yunhang^1,2, WANG Yanan^1,2, YU Yue^1,2, SHI Bi^1,2,*

1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
2. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China;
3. Sichuan Decision New Material Technology Co., Ltd., Deyang 618000, China

Received:2022-09-23 Online:2023-04-01 Published:2023-03-21

摘要/Abstract

摘要： 无铬鞣革普遍存在亲水性强、纤维分散不足等问题,通过调控复鞣材料的亲疏水性来设计适用于无铬鞣革的复鞣剂可能是解决该问题的有效策略。研究了丙烯酸-甲基丙烯酸长链烷基酯合成的丙烯酸树脂复鞣剂（AR）的亲水性（羧基单体含量）对有机无铬鞣革性能的影响。结果表明,随着羧基单体含量的增加,AR的粒径逐渐减小、表面负电荷增加,其在无铬鞣革内的渗透深度和分布均匀度增加。当丙烯酸单体的含量为45%时,AR能完全渗透坯革,且所得复鞣坯革的纤维分散程度、疏水性能、耐干热稳定性、撕裂强度、抗张强度等最高。由此可见,设计亲疏水性合适的AR对改善无铬鞣皮革的综合性能具有重要意义。

关键词: 丙烯酸聚合物, 亲水性, 复鞣, 无铬鞣, 皮革性能

Abstract: In comparison with chrome-tanned leather, chrome-free leather commonly presents natural defects, such as strong hydrophilicity and insufficient fiber dispersion. Designing a suitable retanning agent for chrome-free leather by regulating its hydrophilicity would be an effective strategy to solve these problems. In this work, the effect of the hydrophilicity (carboxyl monomer content) of acrylic resin (AR) retanning agent, synthesized by using acrylic acid and long-chain alkyl methacrylate, on the properties of organic chrome-free leather was investigated. The decrease in AR particle size and the increase in its surface negative charge were observed with increasing carboxyl content, thereby resulting in the improved penetration depth and distribution uniformity of AR in the organic chrome-free leather. When the content of acrylic monomer was 45%, AR fully penetrated the organic chrome-free leather and achieved the highest degree of fiber dispersion and appropriate hydrophobicity, which endows the resulting crust leather with satisfactory dry heat stability, tearing strength, and tensile strength. These results indicate that designing AR with suitable hydrophilicity is of great significance to improve the comprehensive performance of chrome-free leather.

Key words: acrylic polymer, hydrophilicity, retanning, chrome-free tanning, leather properties

中图分类号:

TS529.2
TS54

孙青永, 曾运航, 王亚楠, 余跃, 石碧. 丙烯酸树脂复鞣剂的亲水性对无铬鞣皮革性能的影响[J]. 皮革科学与工程, 2023, 33(2): 1-7.

SUN Qingyong, ZENG Yunhang, WANG Yanan, YU Yue, SHI Bi. Effect of Hydrophilicity of Acrylic Resin Retanning Agent on Properties of Chrome-free Leather[J]. Leather Science and Engineering, 2023, 33(2): 1-7.

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丙烯酸树脂复鞣剂的亲水性对无铬鞣皮革性能的影响

Effect of Hydrophilicity of Acrylic Resin Retanning Agent on Properties of Chrome-free Leather

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