TY - JOUR
T1 - Comparison of rheological, mechanical, electrical properties of HDPE filled with BaTiO 3 with different polar surface tension
AU - Su, Jun
AU - Zhang, Jun
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - In this work, three types of coupling agents: isopropyl trioleic titanate (NDZ105), vinyltriethoxysilane (SG-Si151), 3-aminopropyltriethoxysilane (KH550) were applied to modify the surface tension of Barium titanate (BaTiO 3 ) particles. The Fourier transform infrared (FT-IR) spectra confirm the chemical adherence of coupling agents to the particle surface. The long hydrocarbon chains in NDZ105 can cover the particle surface and reduce the polar surface tension of BaTiO 3 from 37.53 mJ/m 2 to 7.51 mJ/m 2 , turning it from hydrophilic to oleophilic properties. The short and non-polar vinyl groups in SG-Si151 does not influence the surface tension of BaTiO 3 , but make BaTiO 3 have both hydrophilic and oleophilic properties. The polar amino in KH550 can keep BaTiO 3 still with hydrophilic properties. It is found that SG-Si151 modified BaTiO 3 has the lowest interaction with HDPE matrix, lowering the storage modulus of HDPE composites to the greatest extent. As for mechanical properties, the polar amino groups in KH550 on BaTiO 3 surface can improve the adhesion of BaTiO 3 with HDPE matrix, which increases the elongation at break of HDPE composites to the greatest extent. In terms of electrical properties, the polar amino groups on surface of BaTiO 3 can boost the dielectric properties of HDPE/BaTiO 3 composites and decrease the volume resistivity of HDPE/BaTiO 3 composites. The aim of this study is to investigate how functional groups affect the rheological, mechanical and electrical properties of HDPE composites and to select a coupling agent to produce HDPE/BaTiO 3 composites with low dielectric loss, high dielectric constant and elongation at break.
AB - In this work, three types of coupling agents: isopropyl trioleic titanate (NDZ105), vinyltriethoxysilane (SG-Si151), 3-aminopropyltriethoxysilane (KH550) were applied to modify the surface tension of Barium titanate (BaTiO 3 ) particles. The Fourier transform infrared (FT-IR) spectra confirm the chemical adherence of coupling agents to the particle surface. The long hydrocarbon chains in NDZ105 can cover the particle surface and reduce the polar surface tension of BaTiO 3 from 37.53 mJ/m 2 to 7.51 mJ/m 2 , turning it from hydrophilic to oleophilic properties. The short and non-polar vinyl groups in SG-Si151 does not influence the surface tension of BaTiO 3 , but make BaTiO 3 have both hydrophilic and oleophilic properties. The polar amino in KH550 can keep BaTiO 3 still with hydrophilic properties. It is found that SG-Si151 modified BaTiO 3 has the lowest interaction with HDPE matrix, lowering the storage modulus of HDPE composites to the greatest extent. As for mechanical properties, the polar amino groups in KH550 on BaTiO 3 surface can improve the adhesion of BaTiO 3 with HDPE matrix, which increases the elongation at break of HDPE composites to the greatest extent. In terms of electrical properties, the polar amino groups on surface of BaTiO 3 can boost the dielectric properties of HDPE/BaTiO 3 composites and decrease the volume resistivity of HDPE/BaTiO 3 composites. The aim of this study is to investigate how functional groups affect the rheological, mechanical and electrical properties of HDPE composites and to select a coupling agent to produce HDPE/BaTiO 3 composites with low dielectric loss, high dielectric constant and elongation at break.
KW - Barium titanate (BaTiO )
KW - Coupling agents
KW - High density polyethylene (HDPE)
KW - Mechanical and electrical properties
KW - Rheology
KW - Surface tension
UR - http://www.scopus.com/inward/record.url?scp=84964923528&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2015.10.156
DO - 10.1016/j.apsusc.2015.10.156
M3 - 文章
AN - SCOPUS:84964923528
SN - 0169-4332
VL - 388
SP - 531
EP - 538
JO - Applied Surface Science
JF - Applied Surface Science
ER -