Waterborne anionic polyurethanes and poly(urethane-urea)s: influence of the chain extender on mechanical and adhesive properties

被引：179
|
作者：
Delpech, MC
Coutinho, FMB
机构：
[1] UFRJ, IMA, Inst Macromol Professora Eloisa Mano, BR-21945970 Rio De Janeiro, Brazil
[2] UERJ, IQ, Dept Proc Ind, Rio De Janeiro, Brazil
来源：
POLYMER TESTING | 2000年 / 19卷 / 08期
关键词：
D O I：
10.1016/S0142-9418(99)00066-5
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Polyurethane and poly(urethane-urea) aqueous dispersions based on 4,4'-dicyclohexylmethane diisocyanate (H12MDI), poly(propylene glycol) (PPG) and dimethylolpropionic acid (DMPA) were synthesized, Three types of chain extenders were used, hydrazine (HYD) and ethylenediamine (EDA), producing poly(urethane-urea)s and ethylene glycol (EG), polyurethanes. The dispersion was performed before or after the chain extension reaction, depending on the extender employed. The dispersions were prepared with and without the addition of acetone after the prepolymer synthesis and neutralization steps. The length of soft segment and NCO/OH ratio were varied. Some mechanical properties of cast films obtained from the aqueous dispersions, the characteristics of coating application on a wood surface and their adhesive properties were evaluated. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：939 / 952
页数：14
相关论文
共 50 条
  • [31] Gas permeation properties of poly(urethane-urea)s containing different polyethers
    Li, Hua
    Freeman, Benny D.
    Ekiner, O. Max
    JOURNAL OF MEMBRANE SCIENCE, 2011, 369 (1-2) : 49 - 58
  • [32] Structure Property Relationship of Micellar Waterborne Poly(Urethane-Urea): Tunable Mechanical Properties and Controlled Release Profiles with Amphiphilic Triblock Copolymers
    Chen, Shu-Yi
    Kokalari, Ida
    Parnell, Steven R.
    Smith, Gregory N.
    Zeng, Bing-Hong
    Way, Tun-Fun
    Chuang, Fu-Sheng
    Rwei, Alina Y.
    LANGMUIR, 2023, 39 (29) : 10033 - 10046
  • [33] Preparation of aqueous anionic poly(urethane-urea) dispersions. Influence of the structure and molecular weight of the macrodiol on the dispersion and polymer properties
    Durrieu, V
    Gandini, A
    POLYMER INTERNATIONAL, 2005, 54 (09) : 1280 - 1287
  • [34] The preparation and properties for poly(HTBN)urethane-urea/OMMT nanocomposites
    Li, Zai-Feng
    Sun, Jian
    Wang, Sheng-Jun
    Li, Jin-Yan
    Hao, Jun-Song
    Du, Juan
    Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 2010, 26 (08): : 120 - 123
  • [35] FLUORINATED POLYURETHANES .1. SYNTHESIS AND CHARACTERIZATION OF FLUORINE-CONTAINING SEGMENTED POLY(URETHANE-UREA)S
    TAKAKURA, T
    KATO, M
    YAMABE, M
    MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS, 1990, 191 (03): : 625 - 632
  • [36] Porous poly(urethane-urea)s through emulsion templating
    Silverstein, Michael S.
    David, Dganit
    Bialystocki, Tslil
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 248
  • [37] Fluorescent aggregates in naphthalene containing poly(urethane-urea)s
    Simas, ER
    Akcelrud, L
    JOURNAL OF LUMINESCENCE, 2003, 105 (01) : 69 - 79
  • [38] Synthesis of mechanically strong waterborne poly(urethane-urea)s capable of self-healing at elevated temperatures
    Nevejans, Sil
    Ballard, Nicholas
    Rivilla, Ivan
    Fernandez, Mercedes
    Santamaria, Antxon
    Reck, Bernd
    Asua, Jose M.
    EUROPEAN POLYMER JOURNAL, 2019, 112 : 411 - 422
  • [39] Effects of ion group content and polyol molecular weight on physical properties of HTPB-based waterborne poly(urethane-urea)s
    Huang, Shih Min
    Chen, Teng Ko
    JOURNAL OF APPLIED POLYMER SCIENCE, 2007, 105 (06) : 3796 - 3801
  • [40] Influence of chain extender on the unperturbed dimensions of poly(ester-urethane)s
    Ioan, S
    Macocinschi, D
    Lupu, M
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2003, 5 (03): : 563 - 568
12345