耐高低温聚乙烯(PE)防滑包装材料的制备与研究

以自制A型、B型和外购E型热熔胶为防滑涂层,喷涂于PE包装薄膜表面,经后期热处理分别制得新型PE防滑包装材料AE-S-PE、BE-S-PE与EE-S-PE。通过对材料室温(25℃)、高温(70℃)和低温(-20℃)条件下摩擦系数、力学性能和粘结强度进行表征,研究并对比了3种防滑包装材料在各温度条件下的防滑性能、粘结强度和力学强度,并确定性能最佳的防滑材料投入实际应用。结果表明,BE-S-PE防滑包装材料在相同定量和温度条件下的摩擦系数、力学性能和粘结强度均优于AE-S-PE和EE-S-PE材料,当定量为70g/m^2时其在室温、高温和低温条件下摩擦系数分别为1.356,2.097,0.866;粘结强度等级均为5B。因此BE-S-PE材料具有更好的耐高低温性,并最适合作为一种耐高低温防滑材料应用于运输包装领域。

Preparation and study on new polyethylene(PE)anti-skid packaging material with high and low temperature resistance

New PE anti-skid packaging materials AE-S-PE, BE-S-PE and EE-S-PE, which were respectively used self-made formula A, B type and purchased E type hot melt adhesives as anti-slip coatings, were prepared by thermal spraying and heat treatment method. The friction coefficient, mechanical properties and bond strength of three kinds of antiskid packaging materials were characterized and compared at room temperature (25 ℃), high temperature (70 ℃) and low temperature (-20 ℃), and the materials with optimal performance were obtained into practical application. The results show that the friction coefficient, mechanical properties and bond strength of BE-S-PE were superior to those of AE-S-PE and EE-S-PE under the same quantitative and temperature. At 25, 70 and -20 ℃, the friction coefficient of spraying was 1.356, 2.097 and 0.866, respectively, and the bond strength grade was 5 B when the spraying quantity was 70 g/m^2. Therefore, BE-S-PE has better resistance perfomance to high and low temperature, and is most suitable for application in transportation packaging as a kind of anti-skid material.