Preparation and Properties of Irradiated Cross-Linked LDPE/HDPE Foam Materials
Low density polyethylene(LDPE)/high density polyethylene(HDPE)foam materials were prepared using melt blending and irradiation crosslinking techniques.Effects of HDPE content on processing liquidity,thermal properties,rheological properties,foaming behavior,mechanical properties and thermal conductivity of LDPE/HDPE foam materials were studied.The results show that the addition of HDPE significantly improves the melt flow rate and crystallinity of LDPE/HDPE foam materials.Compared with pure LDPE foam material,when the mass fraction of HDPE is 30%,the tensile strength of LDPE/HDPE foam material increases by 32.3%,compressive strength increases by 67.5%,Shore hardness increases by 14.3%and resilience decreases by 16.0%,indicating the best overall performance.
low density polyethylenehigh density polyethylenemechanical propertythermal conductivityfoam behavior
万方数据
维普
