scholarly journals Effect of Drying Temprature on some Properties of Polymer Composite with Epoxy K-153 Matrix

Author(s):  
Nguyen Trung Thanh

The article introduces the effects of drying temperature on curing level, thermal endurance, thermal oxidation resistance, surface structure morphology of polymer composite material based on K-153 epoxy resin (K-153 epoxy resin is made from ED-20 epoxy resin modified by thiokol and oligomer acrylate), T-13 glass fiber and hardener polyethylenepolyamine. The results show that the thermal endurance, thermal oxidation resistance, surface structure morphology of polymer composite change much when the drying temperature changes. When the drying temperature increases from 60°C to about 80°C, the structure of the polymer composites are tighter, the thermal endurance, thermal oxidation resistance also increases, however, if the drying temperature is continued to increase, these properties of the material will reduce.

2020 ◽  
Vol 93 (7) ◽  
pp. 998-1002
Author(s):  
O. Zh. Ayurova ◽  
N. M. Kozhevnikova ◽  
D. M. Mognonov ◽  
O. V. Il’ina ◽  
M. S. Dashitsyrenova ◽  
...  

2019 ◽  
Vol 0 (2) ◽  
pp. 22-28
Author(s):  
A.M. Kudrin ◽  
◽  
O.A. Karaeva ◽  
K.S. Gabriel’s ◽  
◽  
...  

Micromachines ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 571
Author(s):  
Timur Rizovich Ablyaz ◽  
Evgeny Sergeevich Shlykov ◽  
Karim Ravilevich Muratov ◽  
Sarabjeet Singh Sidhu

This study presents the analysis of wire-cut electro-discharge machining (WIRE-EDM) of polymer composite material (PCM). The conductivity of the workpiece is improved by using 1 mm thick titanium plates (layers) sandwiched on the PCM. Input process parameters selected are variable voltage (50–100 V), pulse duration (5–15 μs), and pause time (10–50 μs), while the cut-width (kerf) is recognized as an output parameter. Experimentation was carried out by following the central composition design (CCD) design matrix. Analysis of variance was applied to investigate the effect of process parameters on the cut-width of the PCM parts and develop the theoretical model. The results demonstrated that voltage and pulse duration significantly affect the cut-width accuracy of PCM. Furthermore, the theoretical model of machining is developed and illustrates the efficacy within the acceptable range. Finally, it is concluded that the model is an excellent way to successfully estimate the correction factors to machine complex-shaped PCM parts.


2015 ◽  
Vol 167 ◽  
pp. 126-131 ◽  
Author(s):  
Songhak Yoon ◽  
Jakob Bierwagen ◽  
Matthias Trottmann ◽  
Bernhard Walfort ◽  
Nando Gartmann ◽  
...  

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