摘要
以聚丙烯粉料为研究对象,以商品透明成核剂和硬脂酸钙以及抗氧剂1010等助剂为原料,通过熔融共混法制备了透明聚丙烯。通过光透过率测试、X射线衍射分析、偏光显微镜观察、力学性能测试等手段对所得聚丙烯进行了分析表征。结果表明,随着成核剂的加入,聚丙烯透明性先增加而后下降,最佳加入量为0.25%;成核剂用量的增加,球晶颗粒尺寸减小;加入成核剂,聚丙烯力学性能也明显提高。
Transparent polypropylene(PP) is prepared with PP powder , nucleating agent and calcium stearate, antioxidant 1010 etc.as raw materials and by method of melt extrusion. The crystalline morphology, properties and light transmittance are investigated by PLM, X-ray, ultraviolet-visible spectrometry and mechanical properties tests . The results show that ,with addition of nucleating agent,the PP transparency increases at first and decreases at the later. The optimal quantity of addition of nucleating agent is 0.25%.With the addtion quantity of nucleating agent increases,the particle size of the crystal decreases.The addtion of nucleating agent can also increase the mechanical properties of PP significantly.
出处
《河南化工》
CAS
2004年第2期16-18,共3页
Henan Chemical Industry
关键词
聚丙烯
透明性
熔融共混
成核剂
polypropylene
transparency
melt extrusion
nucleating agent
