Photo-oxidative degradation of polypropylene/montmorillonite nanocomposites

被引：152

作者：

Qin, HL

Zhang, SM ^{[1
]}

Liu, HJ

Xie, SB

Yang, MS

Shen, DY

机构：

[1] Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, CAS Key Lab Engn Plast, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

POLYMER | 2005年 / 46卷 / 09期

基金：

中国国家自然科学基金;

关键词：

polypropylene; montmorillonite; photo-oxidative degradation;

D O I：

10.1016/j.polymer.2005.01.087

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 photo-oxidative behavior of the polypropylene (PP)/montmorillonite (MMT) nanocomposites and microcomposites has been investigated upon ultraviolet exposure using the technique of infrared spectroscopy. The rate of photo-oxidative degradation of PP/MMT nanocomposites is much faster than that of pure PP. The influence of pristine MMT, alkylammonium and compatibilizer were investigated, respectively. All these components can catalyze the photo-oxidation of PP matrix, in which the influence of compatibilizer and pristine MMT is primary. Moreover, the dispersion state of the clay particles in the polymer matrices has a little influence on the photo-oxidative degradation of polymer matrix. Consequently, an integrated catalysis mechanism of the photo-oxidative degradation of PP clay nanocomposite is proposed. It would provide benefit direction for the preparation and usage of polymer layered silicate nanocomposites (PLSN). (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：3149 / 3156

页数：8

共 31 条

[1] Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials [J].

Alexandre, Michael ;

Dubois, Philippe .

Materials Science and Engineering: R: Reports, 2000, 28 (1-2) :1-63

[2] Effect of clay orientation on the tensile modulus of polypropylene-nanoclay composites [J].

Galgali, G ;

Agarwal, S ;

Lele, A .

POLYMER, 2004, 45 (17) :6059-6069

[3]

Garcés JM, 2000, ADV MATER, V12, P1835, DOI 10.1002/1521-4095(200012)12:23<1835::AID-ADMA1835>3.0.CO

[4]

2-T

[5] Generation and reactions of organic radical cations in zeolites [J].

García, H ;

Roth, HD .

CHEMICAL REVIEWS, 2002, 102 (11) :3947-4007

[6] Polymer layered silicate nanocomposites [J].

Giannelis, EP .

ADVANCED MATERIALS, 1996, 8 (01) :29-&

[7] Flammability and thermal stability studies of polymer layered-silicate (clay) nanocomposites [J].

Gilman, JW .

APPLIED CLAY SCIENCE, 1999, 15 (1-2) :31-49

[8] Influence of clay exfoliation on the physical properties of montmorillonite/polyethylene composites [J].

Gopakumar, TG ;

Lee, JA ;

Kontopoulou, M ;

Parent, JS .

POLYMER, 2002, 43 (20) :5483-5491

[9] Nanocomposites formed from linear low density polyethylene and organoclays [J].

Hotta, S ;

Paul, DR .

POLYMER, 2004, 45 (22) :7639-7654

[10] Environmental effects on the degradation behaviour of sisal fibre reinforced polypropylene composites [J].

Joseph, PV ;

Rabello, MS ;

Mattoso, LHC ;

Joseph, K ;

Thomas, S .

COMPOSITES SCIENCE AND TECHNOLOGY, 2002, 62 (10-11) :1357-1372

← 1 2 3 4 →