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化工新型材料  2019, Vol. 47 Issue (3): 203-206    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
聚脲的制备及性能研究
房鑫1,徐英男2,侯传金1,刘彦军1*
1.大连工业大学轻工与化学工程学院,大连116034;
2.大连氟瑞普新材料有限公司,大连116000
Preparation and performance characterization of polyurea
Fang Xin1,Xu Yingnan2,Hou Chuanjin1,Liu Yanjun1
1.School of Light Industry and Chemical Engineering,Dalian Polytechnic University, Dalian 116034;
2.Research and Development Department,Dalian Fluripu New Material Co.,Ltd., Dalian 116000
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摘要 利用异氰酸酯和聚醚氨通过快速混合生成聚脲,具有工艺环保、性能稳定的优点。考察了聚醚氨种类和聚醚氨配比对聚脲固化速度和性能的影响,并对黏度和力学性能进行测试。通过红外光谱、扫描电镜、热重和电化学工作站(EIS、Tafel)等方法对聚脲形貌结构进行表征和对耐腐蚀性能进行测试。结果表明:当以聚醚氨(重均分子量Mw=2000)、聚醚多元胺(Mw=5000)、环氧树脂固化剂(Mw=400)、二乙基甲苯二胺(Mw=100)和N,N-二烷基甲基二胺(Mw=6200)为原料、质量比为2.6∶1.4∶2∶1.8∶2.2时得到的聚脲固化速度最快、热稳定性良好、成膜连续外观光亮、硬度大于邵氏硬度50D、拉伸强度大于20MPa、断裂伸长率大于245%、撕裂强度大于20/(kN·m)、涂覆聚脲的板具有优良的耐腐蚀性。
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房鑫
徐英男
侯传金
刘彦军
关键词:  聚脲  快速固化  异氰酸酯  聚醚氨    
Abstract: Using isocyanate and polyurethane to produce polyurethane by rapid mixing has the advantages of environmental protection and stable performance.The effects of the type of polyurethane and the ratio of polyurethane on curing speed and properties of polyurethane,as well as the determination of viscosity and mechanical properties were investigated.The morphological structure and corrosion resistance of polyurea were tested by FT-IR,SEM,TGA,electrochemical workstation (EIS,Tafel).The results showed that,When polyether ammonia (Mw=2000),polyether polyamine (Mw=5000),epoxy resin curing agent (Mw=400),diethyl toluene diamine(Mw=100),N,N-dialkyl methyl diamine (Mw=6200) used as raw materials,the curing speed of polyurea obtained by the mass ratio of 2.6∶1.4∶2∶1.8∶2.2 was the fastest,the thermal stability was good,film forming continuous appearance was bright,the hardness was greater than shaoshi 50D,the tensile strength was greater than 20MPa,breaking elongation was greater than 245%,and tearing strength was greater than 20/(kN·m).The plate coated with polyurea had excellent corrosion resistance.
Key words:  polyurea    rapid curing    isocyanate    polyether ammonia
               出版日期:  2019-03-20      发布日期:  2019-03-20      期的出版日期:  2019-03-20
基金资助: 国家自然科学基金(21403022);辽宁省高等学校基本科研项目(2017J027)
通讯作者:  刘彦军(1965-),男,教授。   
作者简介:  房鑫(1994-),男,硕士研究生,主要研究方向为功能高分子精细化学品的合成与应用。
引用本文:    
房鑫, 徐英男, 侯传金, 刘彦军. 聚脲的制备及性能研究[J]. 化工新型材料, 2019, 47(3): 203-206.
Fang Xin, Xu Yingnan, Hou Chuanjin, Liu Yanjun. Preparation and performance characterization of polyurea. New Chemical Materials, 2019, 47(3): 203-206.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I3/203
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