PMID- 25981704 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150728 LR - 20150528 IS - 1463-9084 (Electronic) IS - 1463-9076 (Linking) VI - 17 IP - 22 DP - 2015 Jun 14 TI - Dielectric, thermal and mechanical properties of zirconium silicate reinforced high density polyethylene composites for antenna applications. PG - 14943-50 LID - 10.1039/c5cp01242b [doi] AB - A low cost and low dielectric loss zirconium silicate (ZrSiO4) reinforced HDPE (high-density polyethylene) composite has been developed for antenna applications. The 0-3 type composite is prepared by dispersing ZrSiO4 fillers for various volume fractions (0.1 to 0.5) in the HDPE matrix by the melt mixing process. The composite shows good microwave dielectric properties with a relative permittivity of 5.6 and a dielectric loss of 0.003 at 5 GHz at the maximum filler loading of 0.5 volume fraction. The composite exhibits low water absorption, excellent thermal and mechanical properties. It shows a water absorption of 0.03 wt%, a coefficient of thermal expansion of 70 ppm per degrees C and a room temperature thermal conductivity of 2.4 W mK(-1). The composite shows a tensile strength of 22 MPa and a microhardness of 13.9 kg mm(-2) for the filler loading of 0.5 volume fraction. The HDPE-ZrSiO4 composites show good dielectric, thermal and mechanical properties suitable for microwave soft substrate applications. A microstrip patch antenna is designed and fabricated using the HDPE-0.5 volume fraction ZrSiO4 substrate and the antenna parameters are investigated. FAU - Varghese, Jobin AU - Varghese J AD - Functional Materials, Materials Science and Technology Division, CSIR-NIIST, Thiruvananthapuram, Kerala, India. mailadils@yahoo.com. FAU - Nair, Dinesh Raghavan AU - Nair DR FAU - Mohanan, Pezholil AU - Mohanan P FAU - Sebastian, Mailadil Thomas AU - Sebastian MT LA - eng PT - Journal Article PL - England TA - Phys Chem Chem Phys JT - Physical chemistry chemical physics : PCCP JID - 100888160 EDAT- 2015/05/20 06:00 MHDA- 2015/05/20 06:01 CRDT- 2015/05/19 06:00 PHST- 2015/05/19 06:00 [entrez] PHST- 2015/05/20 06:00 [pubmed] PHST- 2015/05/20 06:01 [medline] AID - 10.1039/c5cp01242b [doi] PST - ppublish SO - Phys Chem Chem Phys. 2015 Jun 14;17(22):14943-50. doi: 10.1039/c5cp01242b.