Water absorption in polyaminosiloxane-epoxy thermosetting polymers

被引：52

作者：

Cabanelas, JC ^{[1
]}

Prolongo, SG ^{[1
]}

Serrano, B ^{[1
]}

Bravo, J ^{[1
]}

Baselga, J ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Inst Tec Quim & Mat Alvaro Alonso Barba, Madrid 28911, Spain

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2003年 / 143卷

关键词：

diffusion; epoxy resin; siloxane;

D O I：

10.1016/S0924-0136(03)00480-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Water absorption is a common problem in epoxy-based composites, especially in interfacial regions. In contrast to epoxy resins, silicones are hydrophobic materials. Modification of epoxy thermosets with silicones should improve physical properties because of decrease in water diffusion. Bisphenol-A diglycidyl ether (DGEBA) was cured with a synthesised aminopropyl perfunctionalised siloxane. Water absorption was analysed by different techniques, including near infrared (FTIR) water absorbance at 5200 cm(-1) and gravimetry. Fick's law diffusion coefficients were calculated. Swelling equilibrium of the resin was also analysed. Absorbed water catalyses the curing reaction strongly, allowing to reach high conversions. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：311 / 315

页数：5

共 11 条

[1] THE EFFECT OF IMMERSION IN SEA-WATER ON THE DYNAMIC PROPERTIES OF FIBER-REINFORCED FLEXIBILISED EPOXY COMPOSITES [J].

ADAMS, RD ;

SINGH, MM .

COMPOSITE STRUCTURES, 1995, 31 (02) :119-127

[2] Infrared spectral imaging of the interphase of epoxy-glass fiber-reinforced composites under wet conditions [J].

Arvanitopoulos, CD ;

Koenig, JL .

APPLIED SPECTROSCOPY, 1996, 50 (01) :11-18

[3]

Cabanelas JC, 2001, MACROMOL RAPID COMM, V22, P694, DOI 10.1002/1521-3927(20010601)22:9<694::AID-MARC694>3.0.CO

[4]

2-8

[5] Monitoring of cure and water uptake in a freeformed epoxy resin by an embedded optical fiber [J].

Calvert, P ;

George, G ;

Rintoul, L .

CHEMISTRY OF MATERIALS, 1996, 8 (06) :1298-1301

[6]

Fick A., 1855, ANN PHYS, V170, P59, DOI DOI 10.1002/ANDP.18551700105

[7] Effect of water and its activity on transport properties of glass/epoxy particulate composites [J].

Lekatou, A ;

Faidi, SE ;

Ghidaoui, D ;

Lyon, SB ;

Newman, RC .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 1997, 28 (03) :223-236

[8] DYNAMIC MECHANICAL RESPONSE OF ADHESIVELY BONDED BEAMS - EFFECT OF ENVIRONMENTAL EXPOSURE AND INTERFACIAL ZONE PROPERTIES [J].

LI, C ;

DICKIE, RA ;

MORMAN, KN .

POLYMER ENGINEERING AND SCIENCE, 1990, 30 (04) :249-255

[9]

McEwan L, 1999, POLYMER, V40, P4213

[10] A THEORY OF CASE-II DIFFUSION [J].

THOMAS, NL ;

WINDLE, AH .

POLYMER, 1982, 23 (04) :529-542

← 1 2 →