聚碳酸酯注射成型分子取向分布的双折射实验研究OA北大核心CSCDCSTPCD
Birefringence Experiment of Molecular Orientation Distribution of PC in Injection Molding
运用楔块法研究了聚碳酸酯（PC）注塑平板不同位置处厚度方向上的双折射和分子取向分布，同时考察了注射成型工艺和退火处理对制品双折射分布的影响。结果表明，在制品侧壁处出现沿厚度方向上双折射非对称分布的现象；在靠近冷模壁侧，次表层出现双折射峰值或不连续分布；熔体温度和保压压力对厚度方向双折射影响较大；退火处理几乎不影响双折射和分子取向分布。
The birefringence along the thickness direction of PC plate was studied using Wedge- method. From the distribution of birefringence and molecular orientation with different processing parameters and different positions in the molded plate, an asymmetrical distribution of birefringence on the side-way of the plate was found. On the sub-surface near the cold model, there occurred a birefringence peak or a non-continuous distribution in the thickness direction.…查看全部>>
袁阳;岳鹏;李刚
黄河水利职业技术学院,河南开封475002黄河水利职业技术学院,河南开封475002成都新材料产业研究院,四川成都611430
化学化工
聚碳酸酯注射成型分子取向双折射
polycarbonateinjection moldingmolecular orientationbirdringence
《中国塑料》 2012 (8)
77-80,4
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