Page 186 - 《精细化工》2021年第3期
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第 38 卷第 3 期                             精   细   化   工                                  Vol.38, No.3
             202 1 年 3 月                             FINE CHEMICALS                                 Mar.  2021


              橡塑助剂
                          卡拉胶改性三聚磷酸铝对水性环氧涂层


                                              防腐性能的影响



                                姚红蕊      1,2 ,郭彦君      1,2 ,高慧颖       1,2 ,张   静    1,2 ,

                                        姜   岩    1,2 ,齐   舵    1,2 ,王   娜     1,2*
                 (1.  沈阳化工大学  中西高等材料研究院,辽宁  沈阳   110142;2.  沈阳化工大学  辽宁省特种功能材料重
                 点实验室,辽宁  沈阳  110142)


                 摘要:采用卡拉胶(KC)对三聚磷酸铝(ATP)进行接枝改性获得了 KC-ATP 填料,再将其添加到水性环氧树
                 脂(WEP)中制备了复合防腐涂层。通过 FTIR、XPS、TG、SEM 对 ATP 改性前后的形貌、结构进行了表征。
                 采用电化学阻抗谱(EIS)和盐雾实验考察了复合涂层的防腐性能。结果表明,KC 成功地接枝到 ATP 表面,改
                 善了 ATP 的水溶性。复合涂层的防腐性能明显优于纯水性环氧涂层,且当 KC-ATP 填料含量为 1.0%时(以水性
                                                                                                 7
                                                                                                      2
                 环氧树脂的质量为基准,下同),涂层的耐腐蚀性能达到最佳,浸泡 48 h 后涂层的极化电阻 R p 为 8.183×10  Ω·cm ,
                 远高于 ATP 改性复合涂层和纯环氧涂层。
                 关键词:卡拉胶;三聚磷酸铝;水性环氧树脂;涂层;防腐性能;橡胶助剂
                 中图分类号:TG174.4      文献标识码:A      文章编号:1003-5214 (2021) 03-0606-07



                       Effect of carrageenan modified aluminum tripolyphosphate on
                            anticorrosive properties of waterborne epoxy coatings


                                                                         1,2
                                           1,2
                                                                                        1,2
                                                          1,2
                               YAO Hongrui , GUO Yanjun , GAO Huiying , ZHANG Jing ,
                                                               1,2
                                                     1,2
                                           JIANG Yan , QI Duo , WANG Na    1,2*
                 (1. Sino-Spanish  Advanced Materials Institute, Shenyang University of Chemical  Technology, Shenyang  110142,
                 Liaoning, China; 2. Liaoning Provincial Key Laboratory for Preparation and  Application of  Special Functional
                 Materials, Shenyang University of Chemical Technology, Shenyang 110142, Liaoning, China)
                 Abstract: Carrageenan (KC) was grafted onto aluminum tripolyphosphate (ATP) to achieve modified filler
                 (KC-ATP), and then KC-ATP was added into waterborne epoxy (WEP) to prepare anticorrosive composite
                 coatings. The morphology and structure of ATP before and after modification were characterized by FTIR,
                 XPS, TG and SEM. The anticorrosive  properties  of the composite coatings  were investigated  via
                 electrochemical impedance spectroscopy (EIS) and salt spray test. The results revealed that  KC was
                 successfully grafted onto  the  surface of ATP, which improved the  water  solubility of  ATP. The
                 anticorrosive properties of composite coatings were obviously superior to those of neat waterborne epoxy
                 coating, and the anticorrosive properties of composite coating were the best when the content of KC-ATP
                 functional filler was 1.0% (based on the mass of waterborne epoxy resin, the same below). The polarization
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                 resistance R p of the coating after being soaked for 48 h was 8.183×10  Ω·cm , much higher than those of
                 ATP modified composite and pure epoxy coatings.
                 Key words:  carrageenan;  aluminum  tripolyphosphate; waterborne epoxy resin; coatings;  anticorrosive


                 收稿日期:2020-07-13;  定用日期:2020-09-21; DOI: 10.13550/j.jxhg.20200633
                 基金项目:国家自然科学基金(51973124);国家重点研发计划“科技冬奥”(2019YFF0302004);辽宁“百千万人才工程”项目(辽
                 人社函〔2020〕78 号);2020 年辽宁省教育厅科学研究经费项目(LZ2020002)的基金支持;2019 年度教育部“春晖计划”合作科研
                 项目;辽宁省-沈阳材料科学国家研究中心联合研发基金项目(2019JH3/30100015)
                 作者简介:姚红蕊(1991—),女,讲师,E-mail: hongruiyao@syuct.edu.cn。联系人:王   娜(1977—),女,教授,E-mail:
                 iamwangna@sina.com。
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