New polymeric-coupling agent for polypropylene/wood-flour composites

被引：227

作者：

Nachtigall, Sonia M. B. ^{[1
]}

Cerveira, Graziela S. ^{[1
]}

Rosa, Simone M. L. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil

来源：

POLYMER TESTING | 2007年 / 26卷 / 05期

关键词：

wood-plastic composites; coupling agents; organosilane; thermal properties; mechanical properties;

D O I：

10.1016/j.polymertesting.2007.03.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The suitability of using polypropylene modified with an organosilane Lis a coupling agent for polypropylene/wood-flour composites was investigated. The tensile properties, the water-absorption behavior, the thermal degradation properties and the morphology of the composites were analyzed and compared with those of non-coupled composites and of composites coupled with polypropylene modified with maleic anhydride. The coupling agents were prepared in the laboratory and it was verified that the silane showed higher reactivity towards PP chains. The results indicated that the silane-modified polymer increased the interfacial adhesion between the fibers and the polymer matrix and this effect was better than that obtained for the maleated-polypropylene-coupled composites. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：619 / 628

页数：10

共 26 条

[1] Mechanical properties of wood flake-polyethylene composites. II. Interface modification [J].

Balasuriya, PW ;

Ye, L ;

Mai, YW ;

Wu, J .

JOURNAL OF APPLIED POLYMER SCIENCE, 2002, 83 (12) :2505-2521

[2] The use of silane technology in crosslinking polyethylene/wood flour composites [J].

Bengtsson, M ;

Oksman, K .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2006, 37 (05) :752-765

[3]

Bledzki AK, 1996, J APPL POLYM SCI, V59, P1329, DOI 10.1002/(SICI)1097-4628(19960222)59:8<1329::AID-APP17>3.3.CO

[4]

2-5

[5]

Caraschi José Cláudio, 2002, Mat. Res., V5, P405

[6] Possible coupling reactions of functional silanes and polypropylene [J].

Demjén, Z ;

Pukánszky, B ;

Nagy, J .

POLYMER, 1999, 40 (07) :1763-1773

[7] Thermal behavior of liquefied wood polymer composites (LWPC) [J].

Doh, GH ;

Lee, SY ;

Kang, IA ;

Kong, YT .

COMPOSITE STRUCTURES, 2005, 68 (01) :103-108

[8]

ENGLISH B, 1996, WOOD COMP C MAD SEP

[9]

FERRER FM, 2006, J APPL POLYM SCI, V99, P1823

[10]

FRANCO PJH, 2004, COMPOS PART A-APPL S, V35, P339

← 1 2 3 →