【作者】 张杰； 申开智； 李又兵； 廖永衡；

【Author】 ZHANG Jie,SHEN Kai-zhi LI You-bing LIAO Yong-heng (Department of Polymeric Materials & Engineering, Sichuan University,Chengdu,610065)

【机构】 四川大学高分子科学与工程学院；

【摘要】 采用自行研制的压力振动注射装置,对HDPE进行了力学性能的研究。分别研究了加工温度、振动频率、振动压力和振动时间对拉伸强度的影响。结果表明,在0～0.47HZ范围内,随着频率的增加,拉伸强度提高,超出此频率范围拉伸强度有所下降,且加工温度越低,振动效果越明显。HDPE 5000S和HDPE DGDA6098的拉伸强度分别最大提高20.7%和4 1.3%。更多还原

【Abstract】 In this paper,the mechanical properties of HDPE are studied using a self-made pressure vibration injection device.The effects of processing temperature,vibrating frequency, vibrating pressure and vibrating time to tensile strength are tested.The result shows that tensile strength increases when frequency is in the range of 0～0.47Hz.and it decreases slightly when frequency is over this range.Vibrating effect is more notable as processing temperature is lower. The maximum increment of tensile strength is 20.7%to HDPE 5000S and 41.3%to HDPE DGDA6098.更多还原