Dynamic mechanical and thermal behavior of thermotropic polyesters based on 4,4′-alkane-1-ω-diylbis(4-hydroxybenzoic acid) and 4,4′-(pentane-1,5-diyloxy)dibenzoic acid

AbstractIn this study, the dynamic-mechanical properties and thermal behavior of the nanocomposites of a photocurable epoxy-acrylate resin and CuO nanohybrid were determined. In order to improve the dispersion of CuO nanoparticles and prevention of nanoparticle migration to the surface coating, the surface of commercial nanoparticles was modified by triethoxymethylsilane (TEMS) and vinyltrimethoxysilane (VTMS) as silane-coupling agents. Dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) tests were then performed on CuO-filled epoxy-acrylate resins to identify the loading effect on the properties of material. The thermal stability of nanocomposites was affected slightly after incorporation of CuO nanoparticles. DMA studies revealed that filling the CuO nanoparticles into epoxy-acrylate resin can produce a significant enhancement in storage modulus, as well as a shift in the glass transition temperature. The films reinforced with the modified CuO exhibit the most significant enhancements in properties.

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Effects of maleination and heat treatment on morphology and dynamic mechanical thermal behavior of polypropylene/organoclay nanocomposites

Composites Part A Applied Science and Manufacturing ◽

10.1016/j.compositesa.2009.03.013 ◽

2009 ◽

Vol 40 (6-7) ◽

pp. 968-974 ◽

Cited By ~ 9

Author(s):

Seung Hwan Lee ◽

Seong Yun Kim ◽

Jae Ryoun Youn

Keyword(s):

Heat Treatment ◽

Thermal Behavior ◽

Dynamic Mechanical

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A Study of Dynamic Mechanical and Thermal Behavior of Starch/Poly(vinylalcohol) Based Films

Journal of Polymers and the Environment ◽

10.1007/s10924-009-0116-0 ◽

2009 ◽

Vol 17 (1) ◽

pp. 49-55 ◽

Cited By ~ 18

Author(s):

Dipa Ray ◽

Papri Roy ◽

Suparna Sengupta ◽

Siba Prasad Sengupta ◽

Amar K. Mohanty ◽

...

Keyword(s):

Thermal Behavior ◽

Dynamic Mechanical

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Phase transitions of poly(ethylene terephthalate-co-p-hydroxybenzoic acid) liquid crystal by dynamic mechanical analysis

Polymer ◽

10.1016/0032-3861(89)90045-1 ◽

1989 ◽

Vol 30 (7) ◽

pp. 1257-1261 ◽

Cited By ~ 22

Author(s):

T SUN ◽

Y LIN ◽

H WINTER ◽

R PORTER

Keyword(s):

Phase Transitions ◽

Liquid Crystal ◽

Dynamic Mechanical Analysis ◽

Ethylene Terephthalate ◽

Mechanical Analysis ◽

Hydroxybenzoic Acid ◽

Dynamic Mechanical ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene

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Dynamic Mechanical and Thermal Behavior of UV-Curable Coating of Glycidyl Methacrylate /Polyurethane-Acrylate Modified with MAP-POSS

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.2077 ◽

2011 ◽

Vol 233-235 ◽

pp. 2077-2080 ◽

Cited By ~ 2

Author(s):

Jun Gang Gao ◽

Ying Ying Ma ◽

Hao Jie Lin ◽

Li Huo

Keyword(s):

Thermal Behavior ◽

Glycidyl Methacrylate ◽

Dynamic Mechanical Properties ◽

Mechanical Analysis ◽

Decomposition Temperature ◽

Polyhedral Oligomeric Silsesquioxanes ◽

Uv Curable ◽

Pure System ◽

Dynamic Mechanical ◽

Polyurethane Acrylate

UV-curable bi-component coating of glycidyl methacrylate (GMA)/polyurethane –acrylate (PUA) modified with the methylacryloylpropyl polyhedral oligomeric silsesquioxanes (MAP-POSS) were prepared. The dynamic mechanical properties and thermal behavior of nano-hybrid coating (GMA/PUA/MAP-POSS) were characterized with dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA) and the Fourier transform infrared spectrometer (FTIR). The results indicate the three components have very good compatibility and can co-cure in UV-radialization by a free radical polymerization. The addition of MAP-POSS enhanced the thermal properties, the mechanical loss peak temperature Tp is 85.5°C when the amount of MAP-POSS is 10wt%, which is increased by 12.6 °C than the pure system. When the content of MAP-POSS is 20wt%, thermal decomposition temperature in the initial stages was increased by 7 °C than that of the pure GMA/ PUA.

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