孟明珠,马海燕,顾鑫敏
MENG Ming-zhu,MA Hai-yan,GU Xin-min

• 1:南通大学化学化工学院

摘要(Abstract)：

分别从原料选择、原料改性、工艺制定方面综述了生产高强度聚丙烯(PP)纤维过程中可提升纤维强度的各个重要因素。相对分子质量及其分布是选择合适PP树脂的重要依据;用无机纳米材料对PP改性的主要问题是纳米材料的团聚现象;为了改善纤维内部晶体结构,可在原料中添加各种类型的成核剂;在工艺制定中,选择合适的冷却速度、拉伸温度及拉伸倍数、热定形时间、温度及负荷等,可以提高纤维内部取向度、结晶度,完善内部晶体结构,减少缺陷,最终制得具有高强度的PP单丝。
The important factors that can improve the strength of fiber in the process of producing high strength polypropylene(PP) fiber are summarized. These factors can be grouped into three categories: raw material selection, raw material modification and process development. Molecular weight and molecular weight distribution are important for selecting suitable PP resin. The main problem of modification of PP with inorganic nanomaterials is the agglomeration of nanomaterials. In order to improve the crystal structure of the fiber, various types of nucleating agents may be added to the raw materials. Suitable parameters such as cooling rate, tensile temperature and ratio, heat setting time, temperature and load, etc., shall be choosed to improve the fiber's interior orientation, crystallization, crystal structure and to reduce the defects.

关键词(KeyWords)： 聚丙烯纤维;纳米改性;结晶细化;结晶取向;二次结晶;取向度
polypropylenne fiber;nano-modification;crystal refinement;crystal orientation;secondary crystallization;degree of orientation

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划重点专项(2016YFB0303100)

作者(Author): 孟明珠,马海燕,顾鑫敏
MENG Ming-zhu,MA Hai-yan,GU Xin-min

DOI: 10.16090/j.cnki.hcxw.2017.07.003

参考文献(References)：

• [1]赵敏.改性聚丙烯新材料[M].北京:化学工业出版社,2010:258,260.
• [2]TOYOTA MOTOR CO LTD.High-strength polypropylene fiber and method for producing same:United States Patent:ZL AU2011369769B2[P].2015-09-03.
• [3]FUJIE Maski,YAMASHITA Tomoyoshi,IKEDA Hironobu,et al.Polypropylene fiber and method for manufacturing polypropylene fiber:ZL JP2016070497[P].2017-02-02.
• [4]MAHMOUDI HMEI-D M R,LAWRENCE C A,YASSIEN K M,et al.On the physical behavior of isotactic polypropylene fibers extruded at different draw-down ratios.I.Optical properties and cold-drawing[J].Polymer Engineering and Science,2009.49(11):2116-2124.
• [5]MAO Qianchao,WYATT Tom P,CHIEN An-Ting,et al.Melt spinning of high-strength fiber from low-molecular-weight polypropylene[J].Polymer Engineering and Science,2016,56(2):233-239.
• [6]ANU R Osta,CATALIN R Picu,ALEXANDER King,et al.Effect of polypropylene fiber processing conditions on fiber mechanical behavior[J].Polymer International,2014.63(10):1816-1823.
• [7]ARVIDSON SA,KHAN SA,GORGA RE.Mesomorphic-alpha-monoclinic phase transition in Iisotactic polypropylene:A study of processing effects on structure and mechanical properties[J].Macromolecules,2010,43(6):2916-2924.
• [8]KANG Jian,YANG Feng,CHEN Jinyao,et al.Influences of molecular weight on the non-isothermal crystallization and melting behavior ofβ-nucleated isotactic polypropylene with different melt structures[J].Polymer Bulletin,2017,74(5):1461-1482.
• [9]LI Yijun,LI Meng'en,NIE Min.Reinforcement for polypropylene via self-assembly of beta-form nucleating agent:new insight on the perpendicular orientation of lamellae[J].Journal of Materials Science,2017,52(2):981-992.
• [10]LU Sheng,LU Yan-Hua,SUN Jing,et al.Study on the structure,melting,and nonisothermal crystallization behaviors of isotactic polypropylene with nematic liquid crystalline polymer as a new beta-nucleating agent[J].Polymer Science Series A,2015,57(1):67-75.
• [11]SUN Jing,LI Qun,YAO Xijing,et al.A nematic liquid crystalline polymer as highly active novel beta-nucleating agent for isotactic polypropylene[J].Journal of Materials Science,2013,48(11):4032-4040.
• [12]KANG Wuli,GONG Xiaolei,GAI Jinggang.Toughening effect of ultrahigh molecular weight polyethylene and compounded alpha/beta nucleation agents on isotactic polypropylene by different processing methods[J].Polymer Science Series A,2015,57(6):811-818.
• [13]WANG Jiying,REN Zhongjie,SUN Xiaoli,et al.Theβαgrowth transition of isotactic polypropylene during stepwise crystallization at elevated temperature[J].Colloid and Polymer Science,2015,293(10):2823-2830.
• [14]PECHYEN C,UMMARTYOTIN S.Development of isotactic polypropylene and stearic acid-modified calcium carbonate composite:a promising material for microwavable packaging[J].Polymer Bulletin,2017,74(2):431-444.
• [15]DABROWSKA I,FAMBRI L,PEGORETTI A,et al.Vackova,J.Kolarik.Spinning,drawing and physical properties of polypropylene nanocomposite fibers with fumed nanosilica[J].Express Polymer Letters,2015,9(3):277-290.
• [16]HUAEYIN Avci,RICHARD Kotek,BRANDI Toliver.Controlling of threadline dynamics via a novel method to develop ultra-high performance polypropylene filaments[J].Polymer Engineering and Science,2015,55(2):327-339.
• [17]AVCI H,KOTEK R,YOON J.Developing an ecologically friendly isothermal bath to obtain a new class high-tenacity and high-modulus polypropylene fibers[J].Journal of Materials Science,2013,48(22):7791-7804.
• [18]MUKHOPADHYAY S,DEOPURA B L,ALAGIRUSAMY R.Mechanical properties of polypropylene filaments drawn on varying post spinning temperature gradients[J].Fibers and Polymers,2006,7(4):432-435.
• [19]公艳艳,谭洪生,谭哲兴.口模拉伸高取向抗冲共聚聚丙烯的研究[J].塑料科技,2015,43(3):50-54.
• [20]JIA Jun,YAO Donggang,WANG Youjiang.Melt spinning of continuous fibers by cold air attenuation I:experimental studies[J].Textile Research Journal,2014,84(6):593-603.
• [21]AMIR Saffar,ABDELLAH Ajji,PIERRE J Carreau,et al.The impact of new crystalline lamellae formation during annealing on the properties of polypropylene based films and membranes[J].Polymer,2014,55(14):3156-3167.
• [22]LI Zhujun,NA Bing,TIAN Nana,et al.Enhanced molecular orientation and strain hardening in melt-spun isotactic polypropylene monofilaments through partial melting recrystallization[J].Journal of Applied Polymer Science,2012,123(2):995-999.
• [23]OSTA A R,PICU R C,ISELE O,et al.Structural evolution and mechanical properties of i PP melt spun fibers subjected to thermal treatment[J].Journal of Polymer Research,2016,23(3):59-71.
• [24]过梅丽,赵得禄.高分子物理[M].北京:北京航空航天大学出版社,2005:72.