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涂料工业  2018, Vol. 48 Issue (1): 17-21    https://doi.org/10.12020/j.issn.0253-4312.2018.1.17
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酚醛树脂改性聚氨酯/聚脲涂料的制备及其性能研究
王镠旸1, 叶梦醒1, 王姗2, 刘方方*2
1. 河北科技大学化学与制药工程学院,石家庄 050018;
2. 河北科技大学纺织服装学院,石家庄 050018
Preparation and Properties of Polyurethane/Urea Modified by Phenolic Resin
Wang Liuyang1, Ye Mengxing2, Wang Shan2, Liu Fangfang2
1. Institute of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
2. College of Textile and Garment, Hebei University of Science and Technology, Shijiazhuang 050018, China
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摘要 通过二苯基甲烷二异氰酸酯(MDI50)与聚醚多元醇(1000D)合成异氰酸酯基封端聚醚多元醇预聚体(A组分),再与含有聚醚多元醇、端氨基聚醚、酚醛树脂和扩链剂的R组分反应,制备酚醛树脂改性聚氨酯/聚脲涂料。对其凝胶时间、表干时间、硬度、柔韧性、附着力及耐强酸性、耐强碱性、热性能和阻尼性能进行了测试。结果表明:当R组分中酚醛树脂含量为50%左右时,其涂膜拉伸强度由8.9 MPa提升至13.2 MPa,耐强酸性和阻尼性能得到提升,玻璃化转变温度由12 ℃提升至106 ℃;通过动态热机械分析仪预测了在较高频率下产物仍具有较高储能模量及损耗因子的变化趋势。
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王镠旸
叶梦醒
王姗
刘方方
关键词:  聚氨酯/脲  酚醛树脂  改性  耐强酸性  耐热性  阻尼性能    
Abstract: An isocyanate-terminated prepolymer (A) containing polyether polyol is prepared by reaction of methylene diphenyl diisocyanate(MDI50) with polyether polyol(1000D), then is further reacted with R comprising polyether polyol, polyether amine, phenolic resin and chain extending agent to obtain a phenolic resin modified polyurethane/urea coating. The properties of the prepared coating are investigated. The results show that when the phenolic resin in R is about 50%, the tensile strength of polyurethane/urea increases from 8.9 MPa to 13.2 MPa. Meanwhile, the resistance to strong acid and damping performance are improved, and the glass transition temperature increases from 12 ℃ to 106 ℃. Finally, the dynamic mechanical analyzer was used to forecast the energy storage modulus and damping properties in different frequencies.
Key words:  polyurethane/urea    phenolic resin    modification    strong acid resistance    heat resistance    damping property
收稿日期:  2017-11-15                出版日期:  2018-01-01      发布日期:  2018-05-03      期的出版日期:  2018-01-01
TQ 630.7  
引用本文:    
王镠旸, 叶梦醒, 王姗, 刘方方. 酚醛树脂改性聚氨酯/聚脲涂料的制备及其性能研究[J]. 涂料工业, 2018, 48(1): 17-21.
Wang Liuyang, Ye Mengxing, Wang Shan, Liu Fangfang. Preparation and Properties of Polyurethane/Urea Modified by Phenolic Resin. Paint & Coatings Industry, 2018, 48(1): 17-21.
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http://manu65.magtech.com.cn/Jwk3_tlgy/CN/10.12020/j.issn.0253-4312.2018.1.17  或          http://manu65.magtech.com.cn/Jwk3_tlgy/CN/Y2018/V48/I1/17
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