Fracture toughness of inorganic-organic hybrid coatings

被引：14

作者：

Ballard, RL ^{[1
]}

Sailer, RA ^{[1
]}

Larson, B ^{[1
]}

Soucek, MD ^{[1
]}

机构：

[1] N Dakota State Univ, Dept Polymers & Coatings, Fargo, ND 58105 USA

来源：

JOURNAL OF COATINGS TECHNOLOGY | 2001年 / 73卷 / 913期

关键词：

D O I：

10.1007/BF02698436

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The concepts of fracture toughness and the energy release rate at fracture for thin polymeric films are introduced. Fracture toughness and energy release rate data for ceramer films based on a linseed oil alkyd, a sunflower oil alkyd, and a commercial alkyd with titanium diisopropoxide bis(acetylacetonate), titanium(IV) isopropoxide, and zirconium(IV) propoxide are presented and compared to previously reported tensile data. Differences between the fracture data and the tensile data demonstrate the usefulness of fracture toughness testing. The energy release rate at fracture may be the one property to maximize in order to optimize all of the other coating properties. It may therefore be a great aid in the optimization of coating formulations. Data from dynamic mechanical thermal analysis indicate that there may be a correlation between fracture properties and secondary relaxation processes in the films.

引用

页码：107 / 114

页数：8

共 12 条

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