聚氨酯/环氧树脂接枝共混物的制备及性能

详细信息    查看全文 | 推荐本文 |

英文篇名：Preparation and Performance of Polyurethane/Epoxy Blend Resin 作者：毛田野 ; 陆刚 ; 徐朝阳 ; 刘明光 ; 余红伟 英文作者：MAO Tian-ye;LU Gang;XU Chao-yang;LIU Ming-guang;YU Hong-wei;Department of Chemistry and Material,Naval University of Engineering;91388 Unit of PLA;Institute of Naval Logistics; 关键词：两步聚合法 ; 接枝共混树脂 ; 亲水性 ; 吸水率 ; 力学性能 英文关键词：two-step polymerization;;synthesis of blend resin;;hydrophilic property;;water absorption ratio;;mechanical properties 中文刊名：CLBH 英文刊名：Materials Protection 机构：海军工程大学化学与材料教研室;91388部队;海军后勤学院; 出版日期：2019-03-15 出版单位：材料保护 年：2019 期：v.52;No.482 语种：中文; 页：CLBH201903018 页数：4 CN：03 ISSN：42-1215/TB 分类号：86-89

摘要

聚氨酯/环氧树脂亲水性能低,不适合制作涂料。以2,4-甲苯二异氰酸酯、聚乙二醇单甲醚和环氧树脂为原料,通过2步聚合法合成了亲水性能较好的聚氨酯/环氧树脂(PU/EP)接枝共混物。利用Spectrum BXⅡ红外光谱、JGW-360型接触角测定仪、TH-5000N型电子万能试验机、METTLER-TOLEOO型动态力学分析仪研究了PU/EP接枝共混物的价键结构,PU与EP的配比对其亲水性、吸水率、力学强度和损耗因子等性能的影响。结果表明:2步聚合法成功地制备了PU/EP接枝共混物;随着PU含量的提高,PU/EP接枝共混物的亲水性、吸水率和拉伸强度都有所提升,剪切强度有一定程度的下降,玻璃化转变温度逐渐降低,内耗峰呈现先变窄后变宽的趋势;PU和EP含量分别是60%和40%时为最佳配比。
        Using TDI,MPEG and E20 as raw materials,hydrophilic PU/EP film-forming resin was synthesized by two-step polymerization.The valence bond structure of the film-forming resin and the effects of PU and EP on the hydrophilicity,water absorption ratio,mechanical strength and dissipation factor of the film-forming resin were studied by means of Spectrum BXⅡ FTIR,JGW-360 contact angle tester,TH-5000 N electronic universal testing machine,METTLER-TOLEOO DMA. Results showed that PU/EP film-forming resin was successfully prepared by two-step polymerization. With the increase of PU content,the hydrophilicity,water absorption ratio and tensile strength of the resin increased,whereas the shear strength decreased to a certain extent,and the glass transition temperature gradually reduced,as well as the internal friction peak showed a trend of first narrowing and then widening. The optimal contents of PU and EP were 60% and 40%,respectively.

引文

[1]郐羽,牟洋,孙赫,等.官能化丙烯酸酯类涂料树脂的制备及性能研究[J].涂料工业,2012,42(5):32-35.
    [2]钱孝明.聚氨酯涂料树脂的性能调节和质量提高的新方法[J].化工中间体,2013,10(8):42-46.
    [3]许远远,王佩刚,方敏.水性含氟涂料树脂制备技术研究进展[J].浙江化工,2016,47(12):8-11.
    [4] SHAHLA A,SAIED N K,REZA T,et al. Self-healing performance of an epoxy coating containing microencapsulated alkyd resin based on coconut oil[J]. Progress in Organic Coatings,2018,120:160-166.
    [5]孙小英,苏友权,金鹿江,等.氟硅协同改性丙烯酸树脂的合成与防污性能研究[J].高分子学报,2013(1):134-140.
    [6]王德中.环氧树脂生产与应用[M].北京:化学工业出版社,2001:3-10.
    [7] VARGANICI C D,ROSU L,ROSU D,et al. Miscibility studies of some semi-interpenetrating polymer networks based on an aromatic polyurethane and epoxy resin[J].Composites:Part B,2013,50:273-278.
    [8] CHEN S B,WANG Q H,WANG T M,et.al. Preparation,damping and thermal properties of potasium titanate whiskers filled castor oil-based polyurethane/epoxy interpenetrating polymer network composites[J]. Materials and Design,2011,32:803-807.
    [9] BYCZYNSKI L,DUTKIEWICZB M,MACIEJEWSKI H. Thermal degradation kinetics of semi-interpenetrating polymer network based on polyurethane and siloxane[J]. Thermochimica Acta,2013,560:55-62.
    [10] CHEN S,TIAN Y,CHEN L,et al. Epoxy resin/polyurethane hybrid networks synthesized by frontal polymerization[J]. Chemistry of Materials,2006,18(8):2 159-2 163.
    [11] JIA Q M,ZHENG M,CHEN H X,et al. Synthesis and characterization of polyurethane/epoxy interpenetrating network nanocomposites with organoclays[J]. Polymer Bulletin,2005,54(1):65-73.
    [12]边蕴静.低表面能防污涂料的防污特性理论分析[J].中国涂料,2000(5):36-39.