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High Temperature Thermosets With a Low Coefficient of Thermal Expansion

Title data

Wippl, Johann ; Schmidt, Hans-Werner ; Giesa, Reiner:
High Temperature Thermosets With a Low Coefficient of Thermal Expansion.
In: Macromolecular Materials and Engineering. Vol. 290 (July 2005) Issue 7 . - pp. 657-668.
ISSN 1439-2054
DOI: https://doi.org/10.1002/mame.200500120

Official URL: Volltext

Abstract in another language

Polymeric thermosetting composites can be used as metal substitutes for certain applications if they possess high temperature stability in air, low coefficient of thermal expansion (CTE), and sufficient flexural strength, in combination with competitive costs. Commercial bismaleimide, bisnadimide, and cyanate ester thermosetting materials were selected due to their excellent thermal stability. Low CTEs were achieved by adding high loading levels of fused silica or silicon nitride fillers. Several optimized composites were fabricated by varying the materials, composition, and cure conditions. Characteristic composite properties, such as CTE, thermal stability, glass transition temperature (Tg), flexural strength, and filler distribution were investigated. The best system developed consists of Matrimide 5292, a commercial two-component bismaleimide resin, filled with 75% Silbond FW100EST, and additionally reinforced with 0.5% Twaron short fibers. This composite is distinguished by a CTE around 15 ppm/K, a Tg around 340 C, flexural strength above 100 MPa, and attractive material costs.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I > Chair Macromolecular Chemistry I - Univ.-Prof. Dr. Hans-Werner Schmidt
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 23 Jun 2015 06:49
Last Modified: 10 Jul 2020 11:12
URI: https://eref.uni-bayreuth.de/id/eprint/1391