热熔胶用马来酸酐接枝聚乙烯研究进展

doi:10.16085/j.issn.1000-6613.2016.09.028

摘要/Abstract

摘要： 通过双螺杆挤出机将马来酸酐熔融接枝聚乙烯，制备的聚乙烯热熔胶具有粘接性能强、价格低等优点，广泛地应用于钢塑复合管。本文根据近年来聚乙烯热熔胶的研究方向，综述了新型引发剂及引发方式对接枝反应的影响；比较了不同种类聚乙烯接枝效果的差异；总结了改性单体对热熔胶性能的改善以及温度、挤出机螺杆结构和转速等工艺条件对聚乙烯热熔胶的影响。分别总结了化学滴定法和红外光谱法对接枝率的表征；简述了材料表面处理和涂胶工艺对剥离强度的影响。分析了热熔胶剥离强度传统制样方法的不足，并总结了能得到稳定真实剥离强度的制样方案。展望了低马来酸酐含量、高粘接强度的绿色环保型聚乙烯热熔胶的研究前景。

关键词: 热熔胶, 聚乙烯, 挤出, 接枝率, 剥离强度

Abstract: Maleic anhydride grafted polyethylene is widely used as hot melt adhesive in steel-plastic composite pipe,because of its excellent adhesive properties,and low cost. The grafted progress is always processed through twin-screw extrude. In this paper,the effect of reaction conditions on the graft reaction are summarized,such as initiation methods,reaction temperature,screw structure and speed. The influence of initiators,PE type,and modified monomers are also concluded. Then,the characterization methods of the grafting yield are summarized,such as chemical titration and infrared spectroscopy. The effects of surface treatment and coating process on the peeling strength are discussed too. Finally,we pointed out some drawbacks of traditional sample preparing methods in peeling strength and put forward a reliable way to obtain stable and reliable peeling strength data. The research prospects of PE hot melt adhesive of low maleic anhydride content, excellent adhesion property and environmental characteristics,are predicated.

Key words: hot melt adhesive, polyethylene, extrusion,grafting yield, peeling strength

中图分类号:

TQ325.12

李文, 张华华, 闫瑞涛, 周文娟, 陈艳军, 张超灿. 热熔胶用马来酸酐接枝聚乙烯研究进展[J]. 化工进展, 2016, 35(09): 2845-2849.

LI Wen, ZHANG Huahua, YAN Ruitao, ZHOU Wenjuan, CHEN Yanjun, ZHANG Chaocan. Research progress of maleic anhydride grafted polyethylene for hot melt adhesive[J]. Chemical Industry and Engineering Progree, 2016, 35(09): 2845-2849.

参考文献

[1] CHUAI C,IQBAL M,TIAN S. A study on melt grafting of maleic anhydride onto low density polyethylene and its blend with polyamide6[J]. Journal of Polymer Science Part B:Polymer Physics, 2010,48(3):267-275.
[2] 禄秋艺,罗筑,杨乐,等. 聚乙烯熔融法接枝马来酸酐的制备及表征[J]. 塑料科技,2014,42(8):66-69.
[3] 王洪梅,张海霞,郝立辉,等. 低分子量聚乙烯熔融接枝马来酸酐的研究[J]. 化工科技,2008,16(1),32-34.
[4] 郭永华,陈英林,吴江天,等. 不同引发剂对PE熔融接枝MAH的影响[J]. 广州化工,2011,39(13):76-78.
[5] BRITO G F,XIN J,ZHANG P,et al. Enhanced melt free radical grafting efficiency of polyethylene using a novel redox initiation method[J]. RSC Advances,2014,4(50):26425-26433.
[6] ZHANG Y,CHEN J,LI H. Functionalization of polyolefins with maleic anhydride in melt state through ultrasonic initiation[J]. Polymer,2006,47(13):4750-4759.
[7] SAADE-CABALLERO H,MARTINEZ-COLUNGA J G. Reactive extrusion process for the grafting of maleic anhydride onto linear low-density polyethylene with ultraviolet radiation[J]. Journal of Applied Polymer Science,2009,113(5):3125-3129.
[8] 匡俊杰,游华燕,池晓明,等. 钢/塑复合管用热熔胶的制备与性能研究[J]. 中国胶粘剂,2012,21(9):30-33.
[9] 李岩,李颖,谢续明. 马来酸酐-苯乙烯多组分单体熔融接枝高密度聚乙烯机理及性能研究[J]. 高分子学报,2011(4):347-353.
[10] 宋阳,刘金贵,周豪,等. EVA含量对HDPE和EVA共混接枝马来酸酐粘接树脂粘接性能的影响[J]. 塑料工业,2013(7):36-39.
[11] 刘珊珊. 不同类型聚乙烯熔融挤出接枝马来酸酐及交联机理研究[D]. 青岛:青岛科技大学,2015.
[12] 王宁,王益龙,赵庆,等. 聚乙烯反应挤出接枝马来酸酐的研究[J]. 塑料科技,2008(1):28-32.
[13] FANG H,MA X,FENG L,et al. Effects of screw configurations on the grafting of maleic anhydride grafted low-density polyethylene in reactive extrusion[J]. Journal of Applied Polymer Science,2008,108(6),3652-3661.
[14] 周雅静,揣成智. LDPE熔融接枝马来酸酐的粘结性能[J]. 塑料, 2015,44(2):57-59.
[15] 陈淼灿,刘涛,赵玲,等. 非水滴定和傅立叶红外光谱在聚丙烯马来酸酐接枝物表征中的应用[J]. 功能高分子学报,2005,18(2):334-339.
[16] 高永芝,张建斌,刘建伟. 酸碱滴定法测定马来酸酐接枝聚丙烯中的酸酐含量[J]. 工程塑料应用,2005,33(5):46-48.
[17] SCLAVONS M, FRANQUINET P, CARLIER V, et al. Quantification of the maleic anhydride grafted onto polypropylene by chemical and viscos metric titrations and FTIR spectroscopy[J]. Polymer,2000,41(6):1989-1999.
[18] GASPARIN A L,WANKE C H,NUNES R,et al. An experimental method for the determination of metal-polymer adhesion[J]. Thin Solid Films,2013,534:356-362.
[19] GHOSH A,SCHIRALDI D A. Improving interfacial adhesion between thermoplastic polyurethane and copper foil using amino carboxylic acids[J]. Journal of Applied Polymer Science,2009,112(3):1738-1744.
[20] PRLOLNGO S G,URENA A. Effect of surface pre-treatment on the adhesive strength of epoxy-aluminium joints[J]. International Journal of Adhesion and Adhesives,2009,29(1):23-31.
[21] KU J H,JUNG I H,RHEE K Y,et al. Atmospheric pressure plasma treatment of polypropylene to improve the bonding strength of polypropylene/aluminum composites[J]. Composites Part B:Engineering,2013,45(1):1282-1287.
[22] QIU J,SAKAI E,LEI L,et al. Improving the shear strength by silane treatments of aluminum for direct joining of phenolic resin[J]. Journal of Materials Processing Technology,2012,212(11):2406-2412.
[23] 徐修成. 胶粘剂及其应用——第五讲胶接工艺[J]. 化工进展, 1992,11(4):49-52.
[24] MOUSA S,KIM G Y. Experimental study on warm roll bonding of metal/polymer/metal multilayer composites[J]. Journal of Materials Processing Technology,2015,222:84-90.
[25] DE W F M,ÖZKANAT Ö,MOL J M C,et al. The influence of pre-treatments of aluminium alloys on bonding of PET coatings[J]. Surface and Interface Analysis,2010,42(4):316-320.
[26] ZAND B N,MAHDAVIAN M. Corrosion and adhesion study of polyurethane coating on silane pretreated aluminum[J]. Surface and Coatings Technology,2009,203(12):1677-1681.
[27] MISHRA A K,BALASUBRAMANIAM R. Corrosion inhibition of aluminum alloy AA 2014 by rare earth chlorides[J]. Corrosion Science,2007,49(3):1027-1044.
[28] LIANG C S,LV Z F,ZHU Y L,et al. Molybdate-based conversion treatment for improving the peeling strength between aluminum foil and polypropylene grafted with glycidyl methacrylate[J]. Surface and Coatings Technology,2014,249:1-5.
[29] 郭威男,任光合,李鹏. MRP管道镀锌钢带与热熔胶之间粘接性能研究[J]. 粘接,2014,35(12):64-66.
[30] YANG X,YAO L,XIA Y,et al. Effect of base steels on mechanical behavior of adhesive joints with dissimilar steel substrates[J]. International Journal of Adhesion and Adhesives,2014,51:42-53.
[31] KAWASHITA L F,KINLOCH A J,MOORE D R,et al. The influence of bond line thickness and peel arm thickness on adhesive fracture toughness of rubber toughened epoxy-aluminium alloy laminates[J]. International Journal of Adhesion and Adhesives,2008,28(4/5):199-210.
[32] LEE M,WANG C H,YEO E. Effects of adherend thickness and taper on adhesive bond strength measured by portable pull-off tests[J]. International Journal of Adhesion and Adhesives,2013,44:259-268.
[33] 程李明,王志,李代双. 热熔胶剥离强度试验制样方法及模具:102941642A[P]. 2013-02-27.