Influence of nano-silica and polyethylene wax on the scratch behavior of acrylic-based polyurethane coatings

被引：6

作者：

Lee, S. Y. ^{[1
]}

Jung, W. -Y. ^{[1
]}

Shin, J. -B. ^{[1
]}

Weon, J. -I. ^{[1
]}

机构：

[1] Dongguk Univ, Dept Safety Engn, 123 Dongdae Ro, Gyeongju 38066, Gyeongbuk, South Korea

来源：

JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH | 2019年 / 16卷 / 05期

关键词：

Nano-silica; Polyethylene wax; Acrylic-based polyurethane coating; Gloss; Luminance; Scratch; QUANTITATIVE-EVALUATION; INDUCED DAMAGE; RESISTANCE; PHOTODEGRADATION; IRRADIATION;

D O I：

10.1007/s11998-019-00207-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The scratch behavior and resistance of acrylic-based polyurethane coatings were studied. The effects of fumed silica and polyethylene wax were investigated using an area-contact scratch tip, which can apply a constant load to the coating surfaces at a relatively low stress level. Measurements of the normalized changes in gloss (%G(n)) and luminance (%L-n) could be provided as reliable and meaningful methodologies for estimating the scratch resistance and subtle damage to polymeric coating surfaces. A higher gloss-valued coating surface has better scratch resistance. The addition of nano-silica particles provides the increases in hardness, transparency, and resistance to scratch damage for the acrylic-based polyurethane surface, whereas the polyethylene wax contributes to the increases in gloss and smoothness for the coating surface. The surface characteristics observed are responsible for the improved scratch performance of the acrylic-based polyurethane coating surface.

引用

页码：1295 / 1303

页数：9

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