Comparative study of different polymerically-modified clays on curing reaction and thermal properties of epoxy resin

2011 ◽  
Vol 516 (1-2) ◽  
pp. 13-18 ◽  
Author(s):  
Yuanhua Xu ◽  
Hua Peng ◽  
Xi Wang ◽  
Shengpei Su
Keyword(s):  
Thermal Properties ◽  
Comparative Study ◽  
Epoxy Resin ◽  
Modified Clays ◽  
Curing Reaction

scholarly journals Enhancing the Mechanical and Thermal Properties of Epoxy Resin via Blending with Thermoplastic Polysulfone

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 461 ◽  
Author(s):  
Zeyu Sun ◽  
Lei Xu ◽  
Zhengguo Chen ◽  
Yuhao Wang ◽  
Rogers Tusiime ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Mechanical Tests ◽  
Mechanical And Thermal Properties ◽  
Scanning Calorimetry ◽  
Dsc Studies ◽  
Curing Reaction ◽  
Dynamic Mechanical Thermal Analyzer ◽  
Ft Ir ◽  
Epoxy Blends

Efficient enhancement of the toughness of epoxy resins has been a bottleneck for expanding their suitability for advanced applications. Here, polysulfone (PSF) was adopted to toughen and modify the epoxy. The influences of PSF on the mechanical and thermal properties of the epoxy resin were systematically studied by optical microscopy, Fourier transform infrared spectrometer (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analyzer (TG), dynamic mechanical thermal analyzer (DMA), mechanical tests and scanning electron microscope (SEM). The dissolution experimental results showed that PSF presents a good compatibility with the epoxy resin and could be well dissolved under controlled conditions. The introduction of PSF was found to promote the curing reaction of the epoxy resin without participating in the curing reaction and changing the curing mechanism as revealed by the FT-IR and DSC studies. The mechanical properties of PSF/epoxy resin blends showed that the fracture toughness and impact strength were significantly improved, which could be attributed to the bicontinuous phase structure of PSF/epoxy blends. Representative phase structures resulted from the reaction induced phase separation process were clearly observed in the PSF/epoxy blends during the curing process of epoxy resin, which presented dispersed particles, bicontinuous and phase inverted structures with the increase of the PSF content. Our work further confirmed that the thermal stability of the PSF/epoxy blends was slightly increased compared to that of the pure epoxy resin, mainly due to the good heat resistance of the PSF component.

scholarly journals Reaction Mechanism and Mechanical Property Improvement of Poly(Lactic Acid) Reactive Blending with Epoxy Resin

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2429
Author(s):  
Krittameth Kiatiporntipthak ◽  
Nanthicha Thajai ◽  
Thidarat Kanthiya ◽  
Pornchai Rachtanapun ◽  
Noppol Leksawasdi ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Softening Temperature ◽  
Poly Lactic Acid ◽  
Mechanical And Thermal Properties ◽  
Nanoparticle Dispersion ◽  
Reactive Blending ◽  
Partial Miscibility ◽  
Epoxy Blends ◽  
Epoxy Content

Polylactic acid (PLA) was melt-blended with epoxy resin to study the effects of the reaction on the mechanical and thermal properties of the PLA. The addition of 0.5% (wt/wt) epoxy to PLA increased the maximum tensile strength of PLA (57.5 MPa) to 67 MPa, whereas the 20% epoxy improved the elongation at break to 12%, due to crosslinking caused by the epoxy reaction. The morphology of the PLA/epoxy blends showed epoxy nanoparticle dispersion in the PLA matrix that presented a smooth fracture surface with a high epoxy content. The glass transition temperature of PLA decreased with an increasing epoxy content owing to the partial miscibility between PLA and the epoxy resin. The Vicat softening temperature of the PLA was 59 °C and increased to 64.6 °C for 0.5% epoxy. NMR confirmed the reaction between the -COOH groups of PLA and the epoxy groups of the epoxy resin. This reaction, and partial miscibility of the PLA/epoxy blend, improved the interfacial crosslinking, morphology, thermal properties, and mechanical properties of the blends.

Energetic isomers of bridged oxadiazole nitramines: the effect of asymmetric heterocyclics on stability and energetic properties

2021 ◽  
Vol 50 (38) ◽  
pp. 13286-13293
Author(s):  
Sicheng Liao ◽  
Tianlin Liu ◽  
Zhiyu Zhou ◽  
Kangcai Wang ◽  
Siwei Song ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Comparative Study ◽  
Energetic Properties

A series of asymmetric oxadiazole nitramine compounds were designed and synthesized, and a comparative study of detonation, sensitivity, and thermal properties of three oxadiazole nitramine isomers is made.

The effects of modified zinc oxide nanoparticles on the mechanical/thermal properties of epoxy resin

2020 ◽  
Vol 137 (43) ◽  
pp. 49330
Author(s):  
Yasmine N. Baghdadi ◽  
Lucia Youssef ◽  
Kamal Bouhadir ◽  
Mohammad Harb ◽  
Samir Mustapha ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Thermal Properties ◽  
Epoxy Resin ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles

Incorporation of epoxy resin and carbon nanotube into silica/siloxane network for improving thermal properties

2016 ◽  
Vol 51 (19) ◽  
pp. 9057-9073 ◽  
Author(s):  
Saeid Najafi-Shoa ◽  
Hossein Roghani-Mamaqani ◽  
Mehdi Salami-Kalajahi ◽  
Reza Azimi ◽  
Meysam Gholipour-Mahmoudalilou
Keyword(s):  
Thermal Properties ◽  
Carbon Nanotube ◽  
Epoxy Resin

A comparative study of epoxy resin cured with a linear diamine and a branched polyamine

2012 ◽  
Vol 188 ◽  
pp. 160-172 ◽  
Author(s):  
Jintao Wan ◽  
Cheng Li ◽  
Zhi-Yang Bu ◽  
Cun-Jin Xu ◽  
Bo-Geng Li ◽  
...  
Keyword(s):  
Comparative Study ◽  
Epoxy Resin

Synthesis and thermal properties of urethane-containing epoxy resin

2015 ◽  
Vol 24 ◽  
pp. 20-23 ◽  
Author(s):  
Fan-Long Jin ◽  
Heng-Chang Liu ◽  
Baoqing Yang ◽  
Soo-Jin Park
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin
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