Liquid crystalline epoxy resin modified cyanate ester for high performance electronic packaging

Zhang, Xiaoyan; Gu, Aijuan; Liang, Guozheng; Zhuo, Dongxian; Yuan, Li

doi:10.1007/s10965-010-9549-3

Cited by 33 publications

(19 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, peaks of ‐OCN group (2270 and 2238 cm −1 ) and epoxy ring (913 cm −1 ) were disappeared during the curing. It should be noted that the presence of peaks at 1570 and 1370 cm −1 corresponding to C─N and CN of triazine indicated homopolymerization of CE and peak at 1730 cm −1 indicated the formation of oxazolidone ring structure which come from the reaction between epoxy ring and cyanate group . Moreover, there are new peaks of 1210 and 1050 cm −1 corresponding to ester group, indicating the reactions between CTBN and CE.…”

Section: Resultsmentioning

confidence: 96%

“…It should be noted that the presence of peaks at 1570 and 1370 cm −1 corresponding to C─N and C N of triazine indicated homopolymerization of CE and peak at 1730 cm −1 indicated the formation of oxazolidone ring structure which come from the reaction between epoxy ring and cyanate group. 29,30 Moreover, there are new peaks of 1210 and 1050 cm −1 corresponding to ester group, 31 indicating the reactions between CTBN and CE. Furthermore, the presence of the peaks at 1565 and 1370 cm −1 corresponding to triazine rings in the precured CTBN/EP/CE spectrum indicated that the corresponding reactions had already taken place at the mixing stage of the components.…”

Section: Curing Kinetics Studiesmentioning

confidence: 98%

See 1 more Smart Citation

Shape memory CTBN/epoxy resin/cyanate ester ternary resin and their carbon fiber reinforced composites

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Carboxylated‐terminated liquid acrylonitrile rubber (CTBN) and epoxy resin (JEF‐0211) were coreacted with cyanate ester (CE) to form CTBN/EP/CE ternary resin systems. Further, the ternary resin system was applied as prepreg for carbon fiber composites with vacuum bag degassing molding process. CTBN/EP/CE ternary shape memory polymer (SMP) exhibited relatively high tensile strength, Young's modulus, impact strength, and excellent shape memory properties. Compared with CTBN/EP/CE ternary SMP, CTBN/EP/CE carbon fiber composites showed much higher mechanical properties, such as their tensile strength and Young's modulus were high to 570 MPa and 36.7 GPa, respectively. Furthermore, CTBN/EP/CE carbon fiber composites exhibited good shape memory properties, their shape fixity ratio and shape recovery ratio were more than 95% after 30 times repeating shape memory tests. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48756.

show abstract

Section: Resultsmentioning

confidence: 96%

Section: Curing Kinetics Studiesmentioning

confidence: 98%

Shape memory CTBN/epoxy resin/cyanate ester ternary resin and their carbon fiber reinforced composites

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…HBPGO has excellent dielectric properties due to the chemical structure of polysiloxane and special unoccupied spaces of hyperbranched polymers as well as the outstanding dielectric properties of GO, so modified DCPDCE systems with higher HBPGO concentration have smaller dielectric constant values. Secondly, the addition of HBPGO into CE resin promotes the self-polymerization of -NCO groups, thus increases the productivity of symmetrical triazine rings [38]. As a result, the modified DCPDCE system tends to form networks with greater symmetry and larger space hinder, which is beneficial for reducing the dielectric constant and loss.…”

Section: Dielectric Properties Of Hbpgo/dcpdce Systemmentioning

confidence: 99%

Hyperbranched polysiloxane functionalized graphene oxide for dicyclopentadiene bisphenol dicyanate ester nanocomposites with high performance

Zhang¹,

Yan²,

Gong³

et al. 2014

Express Polym. Lett.

View full text Add to dashboard Cite

Abstract.We report an efficient and novel method to functionalize graphene oxide (GO) with hyperbranched polysiloxane and successfully compound them with dicyclopentadiene bisphenol dicyanate ester (DCPDCE) to prepare nanocomposites. X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectra (FT-IR) were employed to examine the surface functionalization of GO. The effects of functionalized GO on the curing reaction, mechanical, dielectric and thermal properties of DCPDCE resin were investigated systematically. Results of DSC show that the addition of modified GO can facilitate the curing reaction of DCPDCE and decrease the curing temperature of DCPDCE. Compared with pure DCPDCE resin, the impact and flexural strengths of the nanocomposite materials are improved markedly with up to 66 and 50% increasing magnitude, respectively. Meanwhile, the modified GO/DCPDCE systems exhibit lower dielectric constant and loss than pure DCPDCE resin over the testing frequency from 10 to 60 MHz. In addition, the thermal stability and moisture resistance of modified GO/DCPDCE nanocomposties are also superior to that of pure DCPDCE resin.

show abstract

“…For modifying a thermosetting resin, a suitable LCE must have desirable melting and clearing temperatures to fit the curing procedure of the resin, good compatibility and properties to guarantee the expected performance of the modified resin. 26 LCE can exhibit a mesomorphic state during the curing process, and thus the resultant crosslinked network of modified resin will add to its advantages. Therefore, designing and synthesizing LCEs with desirable molecular structure is a good method for modifying thermosetting resins.…”

Section: Introductionmentioning

confidence: 99%

Curing behavior and thermal and mechanical properties enhancement of tetraglycidyl-4,4′-diaminodiphenylmethane/4,4′-diaminodiphenylsulfone using a liquid crystalline epoxy

et al. 2016

View full text Add to dashboard Cite

A thermosetting resin system, based on tetraglycidyl-4,4 ′ -diaminodiphenylmethane, has been developed via copolymerization with 4,4 ′ -diaminodiphenylsulfone in the presence of a newly synthesized liquid crystalline epoxy (LCE). The curing behavior of LCE-containing resin system was evaluated using curing kinetics method and Fourier transform infrared spectroscopy. The effect of LCE on the thermal and mechanical properties of modified epoxy systems was studied. Thermogravimetric analysis indicated that the modified resin systems displayed a high T 0.05 and char yield at lower concentrations of LCE (≤5 wt%), suggesting an improved thermal stability. As determined using dynamic mechanical analysis and differential scanning calorimetry, the glass transition value increased by 9.7% compared to that of the neat resin when the LCE content was 5 wt%. Meanwhile, the addition of 5 wt% of LCE maximized the toughness with a 175% increase in impact strength. The analysis of fracture surfaces revealed a possible effect of LCE as a toughener and showed no phase separation in the modified resin system, which was also confirmed by dynamic mechanical analysis.

show abstract

Liquid crystalline epoxy resin modified cyanate ester for high performance electronic packaging

Cited by 33 publications

References 26 publications

Shape memory CTBN/epoxy resin/cyanate ester ternary resin and their carbon fiber reinforced composites

Shape memory CTBN/epoxy resin/cyanate ester ternary resin and their carbon fiber reinforced composites

Hyperbranched polysiloxane functionalized graphene oxide for dicyclopentadiene bisphenol dicyanate ester nanocomposites with high performance

Curing behavior and thermal and mechanical properties enhancement of tetraglycidyl-4,4′-diaminodiphenylmethane/4,4′-diaminodiphenylsulfone using a liquid crystalline epoxy

Contact Info

Product

Resources

About