Page 82 - 《精细化工》2023年第11期
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第 40 卷第 11 期                            精   细   化   工                                 Vol.40, No.11
             2 023 年 11 月                            FINE CHEMICALS                                 Nov.  2023


              功能材料
                                 聚多巴胺/SiO 改性聚氨酯制备
                                                         2

                                            含结构色复合材料



                   辛   华    1,2 ,陈   悦    1,2* ,彭   琪    1,2 ,李阳帆      1,2 ,李新琦       1,2 ,高腾腾      1,2

                 (1.  陕西科技大学  教育部轻化工助剂化学与技术重点实验室,陕西  西安  710021;2.  陕西科技大学  化
                 学与化工学院,陕西  西安  710021)

                 摘要:采用改良 Stöber 法制得了 187、245、274 nm 3 种粒径的单分散 SiO 2 微球,使用聚多巴胺(PDA)对单分
                 散 SiO 2 微球进行包覆,制备了蓝色、绿色、红色 3 种不同颜色的非晶光子晶体 PDA/SiO 2 ;将非晶光子晶体
                 PDA/SiO 2 引入到聚氨酯(PU)中制得了复合材料 PDA/SiO 2 /PU。利用 FTIR、SEM、TEM、UV-Vis、DLS、接
                 触角测定仪及万能试验机对 PDA/SiO 2 及复合材料 PDA/SiO 2 /PU 的结构与性能进行了表征。结果表明,非晶光

                 子晶体 PDA/SiO 2 的颜色取决于单分散 SiO 2 微球的粒径;通过调节 PDA 的包覆量可调整非晶光子晶体 PDA/SiO 2
                 的色彩饱和度;非晶光子晶体 PDA/SiO 2 引入 PU 后可得到呈暗红结构色的聚氨酯,其最大拉伸强度可达
                 40.28 MPa,水接触角最大可达 113°,非晶光子晶体 PDA/SiO 2 的引入使聚氨酯具有结构生色性和优异的机械性
                 能与疏水性。
                 关键词:聚多巴胺;SiO 2 ;非晶光子晶体;结构色;聚氨酯;功能材料
                 中图分类号:TB332                               文献标识码:A
                 文章编号:1003-5214 (2023) 11-2394-09          开放科学 (资源服务)  标识码 (OSID):


                        Polydopamine/SiO 2 modified polyurethane for preparation of

                                composite materials containing structural colors


                                                                                1,2
                                1,2
                                                                     1,2
                                                        1,2
                                                                                                1,2
                       XIN Hua , CHEN Yue   1,2* , PENG Qi , LI Yangfan , LI Xinqi , GAO Tengteng
                 (1. Key Laboratory of Auxiliary Chemistry  & Technology for Chemical  Industry, Ministry of Education, Shaanxi
                 University of Science & Technology, Xi'an 710021, Shaanxi, China; 2. College of Chemistry and Chemical Engineering,
                 Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi, China)
                 Abstract:  Amorphous photonic crystals  PDA/SiO 2 in three  different colors, blue, green and  red,  were
                 prepared respectively by coating polydopamine (PDA) onto monodisperse SiO 2  microspheres with three
                 particle  sizes of  187, 245  and 274 nm  synthesized  via  a  modified Stöber  method. Composite  materials
                 PDA/SiO 2/PU were then  synthesized  by introducing the amorphous  photonic crystals PDA/SiO 2 into
                 polyurethane (PU). The structure and properties of amorphous photonic crystals PDA/SiO 2 and composite
                 materials PDA/SiO 2/PU were characterized by FTIR, SEM, TEM, UV-Vis, DLS, contact angle meter and
                 universal testing machine. The results showed that the color of amorphous photonic crystals PDA/SiO 2 was
                 controlled  by  the  particle size of monodisperse SiO 2 microspheres,  while the color  saturation could  be
                 adjusted by the amount of PDA coated. The introduction of amorphous photonic crystals PDA/SiO 2 into PU
                 led to a dark red structured polyurethane with a maximum tensile strength of 40.28 MPa and a maximum
                 water contact angle of  113°,  while gave the polyurethane structural chromogenicity and excellent
                 mechanical properties and hydrophobicity.
                 Key words: polydopamine; silicon dioxide; amorphous photonic crystals; structural color; PU; functional
                 materials


                 收稿日期:2023-01-29;  定用日期:2023-04-06; DOI: 10.13550/j.jxhg.20230045
                 基金项目:国家自然科学基金项目(51603117);陕西省大学生创新创业训练计划项目(S202010708055)
                 作者简介:辛   华(1980—),女,副教授,E-mail:xinhua@sust.edu.cn。联系人:陈   悦(1998—),女,硕士生,E-mail:1006342077@qq.com。
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