中国塑料 ›› 2018, Vol. 32 ›› Issue (11): 102-108.DOI: 10.19491/j.issn.1001-9278.2018.11.017

• 助剂 • 上一篇    下一篇

磷酸酯钠盐协同滑石粉制备高刚、耐热聚丙烯

童闯闯1,伍楚诗1,公维光1,盛艳1,罗吉1,辛忠2,孟鑫1,3   

  1. 1. 华东理工大学化工学院产品工程系
    2. 上海市华东理工大学化学工程联合国家重点实验室
    3. 华东理工大学
  • 收稿日期:2018-06-05 修回日期:2018-07-12 出版日期:2018-11-26 发布日期:2018-12-24
  • 基金资助:
    国家高技术研究发展计划 863计划

Preparation of High Rigid and High Heat-resistant Polypropylene by Combination of Sodium Phosphate and Talc

  • Received:2018-06-05 Revised:2018-07-12 Online:2018-11-26 Published:2018-12-24
  • Contact: xin meng E-mail:mengxin@ecust.edu.cn

摘要: 采用直接混合法制得聚丙烯/滑石粉(PP/Talc)体系和聚丙烯/成核剂磷酸酯钠盐/滑石粉(PP/NA-40/Talc)体系,研究了Talc的添加量对两种复合体系的力学性能、耐热性能、流动性能以及结晶温度的影响,从动力学角度解释了力学性能提升的原因。结果表明,在PP中加入0.2 %(质量分数,下同)的NA-40和10 %的Talc时,使PP弯曲模量达到2 316.0 MPa,热变形温度达到120.0 ℃,结晶温度达到132.9 ℃,流动性能基本不变,从而满足高刚、耐热PP的使用需求。

Abstract: The polypropylene (PP)/Talc compounding system and polypropylene/sodium phosphate nucleating agent (NA-40)/Talc compounding system were prepared by a melt mixing method, and the effect of Talc content on the mechanical properties, heat resistance, flow properties and crystallization temperature of two compound systems was investigated.The reasons for improvement in mechanical properties of compounding systems were analyzed by a dynamic method.The results indicated that the compounds achieved the flexural modulus of 2 316 MPa, a heat distortion temperature of 120 ℃ and a crystallization temperature of 132.9 ℃ when 0.2 wt % of NA-40 and 10 wt % of Talc were added into PP. Meanwhile,the flow properties of the compounds seemed not to change. These results meetthe requirements of PP for high rigidity and high heat-resistance.