Study on Annealing of Polypropylene Controlled with Phosphate Sodium and Talc

doi:10.19491/j.issn.1001-9278.2019.02.016

Abstract

Abstract: Polypropylene/Nucleating Agent Sodium Phosphate/Talc (PP/NA-40/Talc) system were prepared by extrusion blending method. The effects of annealing time and annealing temperature on mechanical properties, heat distortion temperature and crystallization properties of PP/NA-40/Talc system were studied. It is proved by DSC, XRD and FTIR that the annealing treatment can improve the crystallinity and mechanical properties of PP/NA-40/Talc system. The results show that the mechanical properties, the heat distortion temperature and the crystallization properties of PP/NA-40/Talc system are positively correlated with annealing time and annealing temperature. Especially after annealing at 120 ℃ for 2 h, the flexural modulus, the heat distortion temperature and the crystallinity reached 2516.0 MPa, 136.9 ℃ and 49.5 % respectively.

References

[1] 宋士杰.高性能聚烯烃结晶行为及结构性能关系研究[D].上海:复旦大学,2011.
Song Shijie. Study on the Crystallization and Structure-Property Relationship of High Performance Polyolefins[D]. Shanghai: Fudan University,2011.
[2] Libster D, Aserin A, Garti N. Advanced nucleating agents for polypropylene [J]. Polymers for Advanced Technologies,2007,18 (9): 685-695.
[3] Sheng Z, Horrocks A R. A review of flame retardant polypropylene fibres[J]. Progress in Polymer Science,2003,28(11):1517-1538.
[4] Zhang W W, Liu L, Yang B. Application of Polypropylene Plastics in Automotive Parts [J]. Automobile Technology & Material,2003.
[5] Cui Y H, Wang X X, Li Z Q, et al. Fabrication and properties of nano-ZnO/glass-fiber-reinforced polypropylene composites[J]. Journal of Vinyl & Additive Technology,2010,16(3):189–194.
[6] 伍楚诗. 磷酸酯钠盐协同Talc调控PP刚性和耐热性研究[D].上海：华东理工大学,2016.
Wu Chushi. Study on the Control of Rigidity and Heat Resistance of Polypropylene by Synergy between Sodium Phosphate and Talc[D].ShangHai:East China University of Science and Technology,2016.
[7] Na B, Li Z J, Lv R H, et al. Annealing-induced structural rearrangement and its toughening effect in injection-molded isotactic polypropylene[J].Polymer Engineering & Science, 2012,52(4):893-900.

[8]孟鑫,公维光,陈伟杰,等.退火处理对成核聚丙烯性能的影响[J].中国塑料,2018,32(02):33-36.
Meng Xin, Gong Weiguang, Chen Weijie, et al. Effect of Annealing on Properties of Polypropylene Nucleated with Sodium phosphate[J]. China Plastics,2018,32(02):33-36.
[9] 祝宝东,张爽,朱泓宇,等.β成核剂含量和退火处理对改性聚丙烯力学性能的影响[J].中国塑料,2015,29(04):93-97.
Zhu Baodong, Zhang Shuang, Zhu Hongyu, et al. Influence of β-nucleating Agent Contents and Annealing Treatment on Mechanical Properties of Modified Polypropylene[J]. China Plastics, 2015,29(04):93-97.
[10] Bai H W, Wang Y, Zhang Z J, et al. Influence of Annealing on Microstructure and Mechanical Properties of Isotactic Polypropylene with β-Phase Nucleating Agent[J]. Macromolecules, 2009,42(17):6647-6655.
[11] Mark H F, Tobolsky A V. Polymer science and materials[M]. Wiley-Interscience, 1971.
[12] Li Q G, Xie B H, Yang W, et al. Effect of annealing on fracture behavior of poly(propylene-block-ethylene) using essential work of fracture analysis[J]. Journal of Applied Polymer Science,2006,103(5):3438-3446.
[13] 陈静薇. 第二组分诱导聚丙烯退火过程中结构演化及其力学行为响应的研究[D].四川：西南交通大学, 2014.
Chen Jingwei. Second Component Induces Microstructure Changes in the Annealed Polypropylene and the corresponding mechanical Properties[D]. Sichuan: Southwest Jiaotong University,2014.
[14] 姚军龙,胡强,高琳.改性滑石粉增强增韧聚丙烯研究[J].江汉大学学报(自然科学版),2014,42(02):45-48.
Yao Junlong, Hu Qiang, Gao Lin. Toughening and Reinforcement of Polypropylene with Modified Talc[J]. Journal of Jianghan University (Natural science edition), 2014,42(02):45-48.
[15] 温变英,李振中,权英.增韧理论概说[J].塑料,1999,28(4):7-11.
Wen Bianying, Li Zhenzhong, Quan Ying. Toughening theory[J]. Plastic, 1999,28(4):7-11.
[16] 潘亚敏,石素宇,常宝宝,等.退火对等规聚丙烯微注射制品性能及结构的影响 [J].郑州大学学报:工学版,2013, 34(6):59-62.
Pan Yamin, Shi Suyu, Chang Baobao, et al. Effect of Annealing on the Tensile Properties and Microstructures of Micro-injection Molded Isotactic Polypropylene[J]. Journal of Zhengzhou University: Engineering Edition, 2013, 34(6):59-62.
[17] Saengsuwan, Sayant. Influence of annealing on microstructure & molecular orientation, thermal behaviour, mechanical properties and their correlations of uniaxially drawn iPP thin film[J]. e-Polymers,2013,8(1):1289-1307.
[18] Alberola N, Fugier M, Petit D, et al. Microstructure of Quenched and Annealed Films of Isotactic Polypropylene[J]. Journal of Materials Science,1995,30(5): 1187-1195.
[19] Ferrer-Balas D, Maspoch M L, Martinez A B, et al. Influence of annealing on the microstructural, tensile and fracture properties of polypropylene films [J]. Polymer, 2001,42(4):1697-1705.