A dynamic mechanical study of the curing reaction of an unsaturated polyester

1982 ◽  
Vol 22 (4) ◽  
pp. 254-259 ◽  
Author(s):  
C. Y. Yap ◽  
H. Leverne Williams
Keyword(s):  
Unsaturated Polyester ◽  
Dynamic Mechanical ◽  
Curing Reaction ◽  
Mechanical Study

scholarly journals A dynamic mechanical study of the curing reaction of two epoxy resins

1979 ◽  
Vol 19 (4) ◽  
pp. 313-318 ◽  
Author(s):  
G. A. Senich ◽  
W. J. MacKnight ◽  
N. S. Schneider
Keyword(s):  
Epoxy Resins ◽  
Dynamic Mechanical ◽  
Curing Reaction ◽  
Mechanical Study

Reuse potential of functionalized thermoplastic waste as reinforcement for thermoset polymers: Mechanical properties and erosion resistance

2021 ◽  
pp. 002199832110370
Author(s):  
Tihomir Kovačević ◽  
Saša Brzić ◽  
Melina Kalagasidis Krušić ◽  
Jovica Nešić ◽  
Ljubica Radović ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Activation Energy ◽  
Erosion Resistance ◽  
Unsaturated Polyester ◽  
Chemical Activation ◽  
Mining Industry ◽  
Dynamic Mechanical Properties ◽  
Variable Loading ◽  
Polymer Waste ◽  
Dynamic Mechanical

Two types of polymer waste materials, poly(ethylene terephthalate) (PET) and polycarbonate based Colombian Resin (CR-39), were used for the designing of fully recycled composite materials. Waste PET was employed for the synthesis of thermoset unsaturated polyester resin (UPR), while CR-39 was used as reinforcement in the UPR matrix. Prior to mixing, CR-39 particles were subjected to oxidation and chemical activation using acids/base and ethanol amine, respectively. The effect of the modifier type and variable loading of the activated CR-39 particles on mechanical and dynamic-mechanical properties of the corresponding composites was investigated. The greatest improvement in the tensile and flexural strength of UPR resin was achieved with the composite containing 0.5 wt% of amine activated filler particles, 96.0% and 62.2%, respectively. The Arrhenius equation was used to calculate the activation energy for glass transition from dynamic mechanical properties measured at various frequencies. The activation energy of the main transition for UPR resin and composites were calculated to be 173 and 350 kJ·mol−1 indicating that reinforcement results in an increase in the energy barrier to macromolecules viscoelastic relaxation. In addition, erosion resistance was studied during exposure of samples to cavitation tests. According to the obtained results, these materials can be applied in construction and mining industry.

A dynamic mechanical study of the α-relaxation in poly(oxymethylene)

1986 ◽  
Vol 19 (10) ◽  
pp. 2538-2540 ◽  
Author(s):  
Howard W. Starkweather
Keyword(s):  
Dynamic Mechanical ◽  
Mechanical Study

Dynamic mechanical study of amorphous phases in poly(ethylene terephthalate) /nylon-6 blends

Polymer ◽  
1995 ◽  
Vol 36 (12) ◽  
pp. 2371-2377 ◽  
Author(s):  
T. Serhatkulu ◽  
B. Erman ◽  
I. Bahar ◽  
S. Fakirov ◽  
M. Evstatiev ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Nylon 6 ◽  
Amorphous Phases ◽  
Dynamic Mechanical ◽  
Poly Ethylene Terephthalate ◽  
Mechanical Study ◽  
Poly Ethylene
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