Reactive Hot Melt Polyurethane Adhesives Modified by Acrylic Copolymer Nanocomposites

被引：10

作者：

Cho, Youn Bok ^{[1
]}

Jeong, Han Mo ^{[1
]}

Kim, Byung Kyu ^{[2
]}

机构：

[1] Univ Ulsan, Dept Chem, Ulsan 680749, South Korea

[2] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea

来源：

MACROMOLECULAR RESEARCH | 2009年 / 17卷 / 11期

关键词：

polyurethane; reactive hot melt adhesive; acrylic copolymer; Na-MMT; bond strength; SODIUM MONTMORILLONITE; RHEOLOGY; POLYMER; MORPHOLOGY;

D O I：

10.1007/BF03218630

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A macroazoinitiator (MAI) containing a poly(ethylene glycol) (PEG) segment was intercalated in the gallery of sodium montmorillonite (Na-MMT). Acrylic monomers were polymerized using this MAI intercalated in Na-MMT to prepare the acrylic copolymer nanocomposite (AN), which is a multiblock copolymer composed of two segments, an acrylic copolymer and PEG intercalated in Na-MMT (Na-MMT/PEG). When AN was used to modify the reactive hot melt polyurethane adhesive (RHA), the acrylic copolymer segment and Na-MMT/PEG synergistically enhanced the initial bond strength evolution and reduced the set time, even when the amount of Na-MMT in RHA was <1 wt%. The viscosity of RHA increased and the tensile properties of the cured RHA film decreased due to modification with AN. These variations were more evident as the Na-MMT content in AN was increased.

引用

页码：879 / 885

页数：7

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