Preparation and properties studies of paraffin/high density polyethylene composites and phase-change coatings

Abstract The form-stable paraffin/high density polyethylene (HDPE) composites and phase-change coatings were prepared and characterized in this study. The paraffin acts as thermal absorbing material and HDPE serves as the supporting material, which provides structural strength and prevents the leakage of melted paraffin. Scanning electronic microscope (SEM) showed that the paraffin is dispersed uniformly into porous network of HDPE. Differential scanning calorimeter (DSC) determined the melting temperature and heat storage capacity of the composite piece to be 49.6 °C and 150.88 kJ/kg, respectively. Moreover, results indicated that the composite pieces showed better thermal stability than composite powders after 6 temperature cycling experiments. The phase-change coatings with 40 wt% composites as functional filler showed good adhesion strength and shock resistance, and could decrease the surface temperature obviously comparing with nude Al alloy plates.

[1]  Ahmet Sarı,et al.  Capric–myristic acid/vermiculite composite as form-stable phase change material for thermal energy storage , 2009 .

[2]  Hanning Xiao,et al.  Preparation and thermal properties of paraffin/porous silica ceramic composite , 2009 .

[3]  S. C. Kaushik,et al.  DEVELOPMENT OF PHASE CHANGE MATERIALS BASED MICROENCAPSULATED TECHNOLOGY FOR BUILDINGS: A REVIEW , 2011 .

[4]  A. Abhat.  Low temperature latent heat thermal energy storage: Heat storage materials , 1983 .

[5]  K. Kaygusuz,et al.  Experimental study on melting/solidification characteristics of a paraffin as PCM , 2007 .

[6]  Kamil Kaygusuz,et al.  The Viability of Thermal Energy Storage , 1999 .

[7]  Yuan Hu,et al.  Flammability and thermal properties of high density polyethylene/paraffin hybrid as a form‐stable phase change material , 2006 .

[8]  Zhishen Wu,et al.  Experimental investigation of preparation and thermal performances of paraffin/bentonite composite phase change material , 2011 .

[9]  Ye Hong,et al.  Preparation of polyethylene–paraffin compound as a form-stable solid-liquid phase change material , 2000 .

[10]  Xin Wang,et al.  Numerical analysis of effect of shape-stabilized phase change material plates in a building combined with night ventilation , 2009 .

[11]  A. Sari,et al.  Thermal conductivity and latent heat thermal energy storage characteristics of paraffin/expanded graphite composite as phase change material , 2007 .

[12]  Yuan Hu,et al.  Effect of expanded graphite on properties of high-density polyethylene/paraffin composite with intumescent flame retardant as a shape-stabilized phase change material , 2010 .

[13]  Yan Quanying,et al.  Thermal performance of shape-stabilized phase change paraffin wallboard , 2010 .

[14]  P. Xue,et al.  Micro-encapsulated paraffin/high-density polyethylene/wood flour composite as form-stable phase change material for thermal energy storage , 2009 .