Preparation of high performance foams with excellent dielectric property based on toughened bismaleimide resin

2010 ◽  
Vol 22 (12) ◽  
pp. 1731-1737 ◽  
Author(s):  
Xiaoqin Xie ◽  
Aijuan Gu ◽  
Ping Liu ◽  
Guozheng Liang ◽  
Li Yuan
Keyword(s):  
Dielectric Property ◽  
High Performance ◽  
Bismaleimide Resin ◽  
Excellent Dielectric Property

Piezoelectric Properties and Dielectric Property of Li Added KNN Ceramics

2013 ◽  
Vol 566 ◽  
pp. 72-75 ◽  
Author(s):  
Akihiro Mitani ◽  
Yoshinari Oba
Keyword(s):  
Dielectric Property ◽  
Curie Temperature ◽  
Perovskite Structure ◽  
High Performance ◽  
Piezoelectric Properties ◽  
Piezoelectric Materials ◽  
Environmental Issues ◽  
Lead Free ◽  
High Curie Temperature ◽  
A Site

Recently, high performance lead-free piezoelectric materials are strongly demanded for environmental issues. (K0.5Na0.5)NbO3 (KNN) has been attracting interest as lead-free piezoelectric ceramics because of its high Curie temperature and excellent piezoelectric properties. In this study, we investigated effects of Li addition on piezoelectric properties of (Li,Na,K)(Nb+Ta)O3+CuO,BaTiO3 . We found that optimum Li ratio of A site and B site on the perovskite structure increases relative density and .

A new m-xylylene bismaleimide-based high performance resin for vacuum-assisted infusion and resin transfer molding

2019 ◽  
Vol 53 (22) ◽  
pp. 3063-3072
Author(s):  
Sergey Evsyukov ◽  
Ronald Klomp-de Boer ◽  
HD Stenzenberger ◽  
Tim Pohlmann ◽  
Matthijs ter Wiel
Keyword(s):  
High Performance ◽  
Resin Transfer Molding ◽  
Ternary Eutectic ◽  
Melt Processing ◽  
Processing Temperature ◽  
Resin Infusion ◽  
Bismaleimide Resin ◽  
Transfer Molding ◽  
Low Viscosity ◽  
Processing Techniques

A novel low-melting, low-viscosity, one-part bismaleimide resin based on m-xylylene bismaleimide has been developed and examined for application in vacuum-assisted resin infusion. The resin is a fully formulated system comprising a ternary eutectic BMI mixture blended with bis-( o-propenylphenoxy)benzophenone and 2,2'-bis(3-allyl-4-hydroxyphenyl)propane as co-monomers. The resin offers enhanced properties for melt processing techniques. The formulation strategy and chemistry is presented and discussed in detail. For resin infusion and/or resin transfer molding technologies, the melt processing temperature of the resin is in the range of 90–110℃. Processing data of the uncured and mechanical properties of cured neat resin are provided. The resin shows a Tgof 285℃ when post-cured at 250℃ for 6 h. Finally, a 400 × 500 mm2carbon fabric laminate was successfully molded for demonstration by a VARI process. The microscopic study reveals no voids and no laminate surface imperfections. The VARI processing details are presented and discussed.

High-performance bismaleimide resin film for resin film infusion

2001 ◽  
Vol 81 (12) ◽  
pp. 2918-2922 ◽  
Author(s):  
Guozheng Liang ◽  
Dong Wang
Keyword(s):  
High Performance ◽  
Bismaleimide Resin ◽  
Resin Film

Preparation and characterization of PI/PVDF composite films with excellent dielectric property

2016 ◽  
Vol 28 (5) ◽  
pp. 4088-4094 ◽  
Author(s):  
Xin Mao ◽  
Wenfeng Guo ◽  
Chengzhang Li ◽  
Jie Yang ◽  
Lirong Du ◽  
...  
Keyword(s):  
Dielectric Property ◽  
Composite Films ◽  
Excellent Dielectric Property
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