Extrinsic fluorescence as a sensitive method for studying photo-degradation of high density polyethylene part I

被引：31

作者：

Douminge, L. ^{[1
]}

Mallarino, S. ^{[1
]}

Cohendoz, S. ^{[1
]}

Feaugas, X. ^{[1
]}

Bernard, J. ^{[1
]}

机构：

[1] LEMMA EA 3167, Lab Etud Mat Milieux Agressifs, F-17042 Nantes 01, France

来源：

CURRENT APPLIED PHYSICS | 2010年 / 10卷 / 04期

关键词：

High density polyethylene; Photo-oxidation; Fluorescence spectroscopy; MINERAL FILLER INFLUENCE; ULTRAVIOLET-IRRADIATION; EXPOSURE TEST; PHOTOOXIDATION; DEGRADATION; CHEMILUMINESCENCE; SPECTROSCOPY; COMPOSITES; LLDPE; HDPE;

D O I：

10.1016/j.cap.2010.02.045

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Artificial ageing of high density polyethylene (HDPE) exposed to ultra-violet irradiation has been investigated by fluorescence spectroscopy. In the case of HDPE, fluorescence spectroscopy requires the addition of fluorophore, (rhodamine 101 laser dye). The spectral features of fluorescence are very sensitive to the interaction between the exited molecules and the polymer matrix. Under wavelength close to 254 nm, the diffusion of oxygen can introduce groups such as C-O, C=O and C(=O)O into the molecular chains. Thus entail structural and chemical modifications such as polymeric chain breaking, cross linking and oxidation. In the present work, we clearly illustrate the fact that fluorescence spectroscopy is very worthwhile in particular to follow the early stages of photo-degradation. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1211 / 1215

页数：5

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