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- Title
Improved flexible, controlled dielectric constant material from recycled LDPE polymer composites.
- Authors
Noorunnisa Khanam, P.; Al-Maadeed, M.; Mrlik, Miroslav
- Abstract
In this study, recycled low density polyethylene (RLDPE) is developed with the addition of aluminum oxide (AlO) to have new polymer composites. The following wt% were used of the filler (1, 4 and 6 wt%). Tensile properties, Hardness, scanning electron microscopy (SEM) thermo gravimetric analysis, differential scanning calorimetry and dielectric properties were studied for these composites. 4 wt% AlO/RLDPE composites showed the optimum values of 15.52, 180.8 and 59.72 MPa for the tensile strength, tensile modulus and hardness were reported. Increasing the filler % decreased the mechanical properties of the composites due to agglomeration and poor surface contact with the polymer matrix. This is confirmed by SEM studies. AlO filler increased the melting and crystallization temperature of RLDPE. Furthermore, it showed that AlO filler improved the thermal stability of RLDPE with increasing the % of filler. Relative permittivity, dielectric loss factor and AC electrical conductivity were increased with increasing the amount of the ALO. The relative permittivity reached a value of 4.9 at 1 kHz frequency, which is a good value for a flexible composite prepared from recycled material and it can be used in electrical devices and electronic packaging.
- Subjects
LOW density polyethylene; ALUMINUM oxide; POLYMERS; THERMOGRAVIMETRY; DIELECTRIC properties; TENSILE strength
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 8, p8848
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-016-4910-x