Extruded benzene sulfonate modified poly(ethylene terephthalate)/polyamide 6 blends: An insight into the mechanism of compatibility improvement

被引：0
|
作者：
Ye Q.-Y. [1 ]
Ma X.-J. [1 ]
Yao Z. [1 ,2 ]
Hu J.-J. [1 ]
机构：
[1] State Key Laboratory of Chemical Engineering, College of Chemical & Biological Engineering, Zhejiang University, Hangzhou
[2] Institute of Polymerization and Polymer Engineering, Zhejiang University, Hangzhou
来源：
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2023年 / 37卷 / 02期
关键词：
benzene sulfonate modified PET; CDP/PA6; blends; mechanism for improved miscibility; reactive extrusion;
D O I：
10.3969/j.issn.1003-9015.2023.02.010
中图分类号：
学科分类号：
摘要：
In order to solve the problem of poor compatibility of polyethylene terephthalate (PET) and polyamide 6 (PA6) blends, the blends were prepared in a twin-screw extruder using benzene sulfonate modified PET (CDP) and PA6 as raw materials. The results show that the CDP/PA6 blend has a dispersed phase with small size and irregular shape. Its compatibility is far better than that of PET/PA6 blends. The mechanism of the increased compatibility is revealed as follows: the benzenesulfonate group incorporated in the CDP chain is an efficient catalyst for ester-amide exchange, and its one-step reaction with the amide link in PA6 can rapidly produce polyester/polyamide graft copolymers, which greatly improves the compatibility between polyester and polyamide in a few minutes. When the contents of CDP and PA6 in the CDP/PA6 blend was similar, the degree of mutual penetration between polyester and polyamide can be greatly improved that lead to a co-continuous morphology. © 2023 Zhejiang University. All rights reserved.
引用
收藏
页码：233 / 239
页数：6
相关论文
共 27 条
  • [1] WU P X., Polymer blending modification, (1996)
  • [2] BATES F S., Polymer-polymer phase behavior, Science, 251, 4996, pp. 898-905, (1991)
  • [3] PILLON L Z, UTRACKI L A., Compatibilization of polyester/polyamide blends via catalytic ester-amide interchange reaction, Polymer Engineering & Science, 24, 17, pp. 1300-1305, (1984)
  • [4] EVSTATIEV M, SCHULTZ J M, FAKIROV S, Et al., In situ fibrillar reinforced PET/PA6/PA66 blend, Polymer Engineering & Science, 41, 2, pp. 192-204, (2001)
  • [5] YAO Z, SUN J M, WANG Q, Et al., Study on ester-amide exchange reaction between PBS and PA6IcoT, Industrial & Engineering Chemistry Research, 51, 2, pp. 751-757, (2012)
  • [6] SAMPERI F, MONTAUDO M, PUGLISI C, Et al., Essential role of chain ends in the Ny6/PBT exchange. A combined NMR and MALDI approach, Macromolecules, 36, 19, pp. 7143-7154, (2003)
  • [7] HARALABAKOPOULOS A A, TSIOURVAS D, PALEOS C M., Chain extension of poly(ethylene terephthalate) by reactive blending using diepoxides, Journal of Applied Polymer Science, 71, 13, pp. 2121-2127, (1999)
  • [8] XIAO L R, WANG H, QIAN Q R, Et al., Molecular and structural analysis of epoxide-modified recycled poly(ethylene terephthalate) from rheological data, Polymer Engineering & Science, 52, 10, pp. 2127-2133, (2012)
  • [9] HUANG Y Q, LIU Y X, ZHAO C H., Morphology and properties of PET/PA6/E-44 blends, Journal of Applied Polymer Science, 69, 8, pp. 1505-1515, (1998)
  • [10] AN J, GE J Y, LIU Y X., Special effect of epoxy resin E-44 on compatibility and mechanical properties of poly(butylene terephthalate)/polyamide-6 blends, Journal of Applied Polymer Science, 60, 11, pp. 1803-1810, (1996)
123