Synthesis and characterization of itaconic-based epoxy resin: Chemical and thermal properties of partially biobased epoxy resins

AbstractThe synthesis of a new epoxy resin of oligosalicylaldehyde by the reaction with epichlorohydrin is reported. New resin’s epoxy value and chlorine content were determined and found to be 25% and 1%, respectively. The characterization of the new resin was instrumented by FTIR, 1H NMR, scanning electron microscopy, and thermal gravimetric analyses. TGA results showed that the cured epoxy resin has a good resistance to thermal decomposition. The mass losses of cured epoxy resin were found to be 5%, 10%, 50% at 175°C, 240°C, and 400°C, respectively. On the curing procedure the resin was cured with polyethylenepolyamine at 25 °C for 8 h and 100°C for 1.5 h. The FTIR spectrum of new epoxy resin gave the peak of oxirane ring at ṽ = 918 cm−1.

Download Full-text

Synthesis and characterization of functional eugenol derivative based layered double hydroxide and its use as a nanoflame-retardant in epoxy resin

Journal of Materials Chemistry A ◽

10.1039/c4ta05740f ◽

2015 ◽

Vol 3 (7) ◽

pp. 3471-3479 ◽

Cited By ~ 69

Author(s):

Cheng Li ◽

Jintao Wan ◽

Ehsan Naderi Kalali ◽

Hong Fan ◽

De-Yi Wang

Keyword(s):

Flame Retardant ◽

Epoxy Resin ◽

Layered Double Hydroxide ◽

Epoxy Resins ◽

Synthesis And Characterization ◽

Double Hydroxide

Aiming to develop a multi-functional flame retardant for epoxy resins, a novel bio-based eugenol derivative (SIEPDP) was synthesized, and was used to modify Mg–Al layered double hydroxide (SIEPDP-LDH). This modified SIEPDP-LDH was used as a novel nanoflame-retardant for bisphenol epoxy resins and compared with unmodified pristine LDH.

Download Full-text

Synthesis and characterization of some polyimide-epoxy composites

e-Polymers ◽

10.1515/epoly.2011.11.1.244 ◽

2011 ◽

Vol 11 (1) ◽

Cited By ~ 2

Author(s):

Toheed Akhter ◽

Humaira Masood Siddiqi ◽

Zareen Akhter ◽

M. Saeed Butt

Keyword(s):

Thermal Behavior ◽

Epoxy Resins ◽

Analytical Techniques ◽

Char Yield ◽

Epoxy Composites ◽

Hydroxyl Group ◽

Synthesis And Characterization ◽

Tetracarboxylic Acid ◽

Epoxy Amine

AbstractComposites from some novel polyimide and commercial epoxy were prepared aiming to improve the thermal behavior of epoxy resins. Two diamines namely 4-4'-diamino-4''-hydroxytriphenyl methane (DHTM) and 4-4'- diaminotriphenyl methane (DTM) were synthesized by reacting aniline and aldehydes according to a reported method. The synthesized diamines were blended with commercially available epoxy 1, 4-butanedioldiglycidylether (BDDE) to synthesize model epoxy amine networks which were compared with polyimideepoxy composites. The polyimides were synthesized by reaction of these diamines with aromatic anhydride namely 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride (BTDA). These synthesized polyimides were dispersed in epoxy diamine networks to prepare composites. All the monomers and composites were characterized by making use of various analytical techniques including FTIR, NMR, TGA, DSC and XRD. Presence of hydroxyl group in the diamine helped in better dispersion of polyimide leading to high Tg and high char yield at 600 °C.

Download Full-text

Synthesis and characterization of liquid crystalline epoxy resins to study the effect of mesogenic length on the physical properties

Journal of Polymer Research ◽

10.1007/s10965-020-02370-4 ◽

2021 ◽

Vol 28 (2) ◽

Author(s):

Yi-Sheng Lin ◽

Steve Lien-Chung Hsu ◽

Tsung-Han Ho ◽

Li-Cheng Jheng ◽

Yu-Hsiang Hsiao

Keyword(s):

Physical Properties ◽

Epoxy Resins ◽

Liquid Crystalline ◽

Synthesis And Characterization ◽

Liquid Crystalline Epoxy

Download Full-text

Synthesis and characterization of PEDMCD as a flame retardant and its application in epoxy resins

RSC Advances ◽

10.1039/d0ra10233d ◽

2021 ◽

Vol 11 (5) ◽

pp. 2756-2766

Author(s):

Yi Zhang ◽

Weiwei Yang

Keyword(s):

Flame Retardant ◽

Epoxy Resins ◽

Synthesis And Characterization ◽

Direct Polycondensation ◽

Polycondensation Reaction ◽

Highly Effective

In this study, a highly effective flame retardant agent, called polybicyclopentaerythritol phosphate-O-4-imino-p-phenylmethane-4-imino-2-chloro-1,3,5-s-triazine (PEDMCD), has been prepared through a direct polycondensation reaction.

Download Full-text