Effect of network morphology on adhesive performance in emulsion blends of acrylic pressure sensitive adhesives

被引：24
作者：
Tobing, S
Klein, A [1 ]
Sperling, LH
Petrasko, B
机构：
[1] Lehigh Univ, Dept Chem Engn, Bethlehem, PA 18015 USA
[2] Avery Dennison Corp, Painesville, OH 44077 USA
[3] Lehigh Univ, Inst Emuls Polymers, Bethlehem, PA 18015 USA
[4] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2001年 / 81卷 / 09期
关键词：
emulsion blends; PSA; acrylic; microgel;
D O I：
10.1002/app.1646.abs
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
High-gel containing latices and gel-free latex were blended at various weight ratios. The high-gel containing latices was made of poly(2-ethyl hexylacrylate-stat-acrylic acid) and the gel-free latex was made of poly(2-ethyl hexylacrylate-stat-acrylic acid-stat-isobutoxymethyl acrylamide) using semicontinuous emulsion polymerization. Films were cast at room temperature and dried at 121 degreesC for 10 min. Adhesive performance was evaluated in terms of loop tack, peel, and shear holding power. It was found that interlinking the microgels by the linear polymer due to the isobutoxymethyl acrylamide-acrylic acid reaction in the film when heated gave synergistic effects in increasing shear. This interlinking could take place only if the molecular weight between crosslinks (M-c) of the microgels was greater than the entanglement molecular weight of the linear polymer (M-e), and if the weight average molecular weight of the Linear polymer (M-w) was greater than 2 x M-e. (C) 2001 John Wiley & Sons, Inc.
引用
收藏
页码：2109 / 2117
页数：9
相关论文
共 17 条
  • [1] BROWN I, 1996, 5492950 US
  • [2] BROWN ML, 1997, Patent No. 5641567
  • [3] *CYLINK IBMA, TECHN LIT CYTEK CORP
  • [4] CONNECTION BETWEEN POLYMER MOLECULAR-WEIGHT, DENSITY, CHAIN DIMENSIONS, AND MELT VISCOELASTIC PROPERTIES
    FETTERS, LJ
    LOHSE, DJ
    RICHTER, D
    WITTEN, TA
    ZIRKEL, A
    [J]. MACROMOLECULES, 1994, 27 (17) : 4639 - 4647
  • [5] KLEMPNER D, 1971, RUBBER CHEM TECH, V44, P607
  • [6] LOVELL PA, 1991, POLYM COMMUN, V32, P98
  • [7] ROBESON LA, 1999, ACS ANN M AN CAL SPR
  • [8] Satas DE, 1989, HDB PRESSURE SENSITI
  • [9] Skoglund MJ, 1995, U.S. Patent, Patent No. [5,416,134, 5416134]
  • [10] Sperling LH, 1997, Polymeric Multicomponent Materials: An Introduction
12