Correlation Between Artificial and Natural Weathering Tests on Polystyrene-Block-Polybutadiene-Block-Polystyrene Block Copolymer

被引：4
|
作者：
Li, Xiaogang [1 ,2 ]
Gao, Jin [1 ,2 ]
Zhao, Quanlin [1 ,2 ]
Bao, Jinping [1 ]
Hu, Xingjun [2 ]
Wang, Guangyong [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Beijing Key Lab Corros Eros & Surface Technol, Beijing 100083, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2008年 / 110卷 / 06期
基金：
中国国家自然科学基金;
关键词：
correlation; artificial weathering; natural weathering; SBS;
D O I：
10.1002/app.28361
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The effects of artificial and natural weathering tests on the structure and mechanical properties of polystyrene-block-polybutadiene-block-polylstyrene (SBS) block copolymer were studied by spectrophotometry, Fourier Transform Infrared (FTIR) Spectroscopy, hardness measurements, and tensile testing. The correlation between artificial and natural weathering tests was also investigated. The results showed that the Surface of SBS became yellow with increasing aging time. M-R spectra confirmed the formation of carbonyl group in the aging process. The elongation at 0 break, the tensile strength, and the tear strength decreased rapidly in the initial stage of the aging process and then leveled off, while the hardness increased with aging time. The correlation between artificial and natural weathering tests in Wanning and Hailaer, in China, could be expressed in terms of t(1)=2.50t(0)(1.99) and t(2)=1.92t(0)(2.56), respectively. (C) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 110: 3820-3825, 2008
引用
收藏
页码：3820 / 3825
页数：6
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