Hybrid Thermosets from Polyisocyanate/Water Glass/Emulsifier Systems: Effects of Melamine-Formaldehyde Resin

被引：5

作者：

Castella, Nuria ^{[1
]}

Grishchuk, Sergiy ^{[1
]}

Karger-Kocsis, Jozsef ^{[2
,3
]}

Schehl, Martin ^{[1
]}

机构：

[1] Kaiserslautern Univ Technol, Inst Verbundwerkstoffe GmbH, Inst Composite Mat, D-67663 Kaiserslautern, Germany

[2] Budapest Univ Technol & Econ, Dept Polymer Engn, Fac Mech Engn, H-1111 Budapest, Hungary

[3] Tshwane Univ Technol, Fac Engn & Built Environm, ZA-0001 Pretoria, South Africa

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2011年 / 119卷 / 01期

关键词：

thermosetting hybrid resins; dispersions; particle size distribution; flame retardance; structure-property relations; POLYUREA RESINS; SILICATE FILLER; WATER GLASS;

D O I：

10.1002/app.30780

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Melamine-formaldehyde resin (MF) was selected as potential reactive emulsifier for polyurea-based thermoset resins produced from polyisocyanate/water glass (WG)/emulsifier systems. As emulsifier tricresylphosphate and/or MF served for the initial water-in-oil type ("water" WG; "oil" polyisocyanate + emulsifier) emulsions. The MF content of the systems has been varied (<= 15 wt %) and its effect on the structure, mechanical, thermal and flammability properties of the final polyurea-based thermosets studied. It was found that MF is a suitable emulsifier, which can fully replace the phosphate without negatively affecting the properties of the resulting hybrid thermosets. Moreover, hybridization with MF was often accompanied with pronounced improvements in fracture mechanical and static flexural properties. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 7-14, 2011

引用

页码：7 / 14

页数：8