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54   1                                                                                Vol. 54 No. 1
              2024  1                                      D                                          Jan.  2024
                                                    A N    C A  NGS  ND S R


                           阴极电泳涂料用封闭型 PDI固化剂的制备




                                孙家娣 ,张语洋 ,施志红 ,陈兴兰 ,李晨初 ,陈卫东                               1,2
                                                  1
                                                                      1,2
                                                           1,2
                                       1,2
                                                                                1,2
                               (1. 中海油常州涂料化工研究院有限公司,江苏常州213016;
                                    2. 中海油常州环保涂料有限公司,江苏常州213014)
                     摘 要:首先以生物基五亚甲基二异氰酸酯( D )和三羟甲基丙烷为原料合成了  D  预聚体,再
                 以甲乙酮肟为封闭剂对  D  预聚体的—NC  基团进行封端,合成封闭型  D  固化剂。将封闭型  D
                 固化剂应用于阴极电泳涂料,考察了固化剂的应用性能。结果表明:当  D 单体用量为 1 mol,三羟甲
                 基丙烷和甲乙酮肟的用量分别为 0. 45 mol和 0. 55 mol时,所制备的封闭型  D 固化剂状态良好,且固
                 化剂与胺化环氧树脂配套制备的电泳乳液贮存稳定性良好,电泳漆膜可在 135   20 min实现固化,漆
     探 工 工       膜性能满足  G   3952—2007要求。
                     关键词:五亚甲基二异氰酸酯;固化剂;低温固化;电泳涂料
     索
     艺
     艺               中图分类号   630. 4  文献标志码:   文章编号:0253-4312(2024)01-0050-04
     开 技 技           doi 10. 12020  . i  n. 0253-4312. 2023-256

     发 术 术              Preparation o   loc ed PDI Curing Agent  or Cathodic
                                             Electrophoretic Coatings




                           1,2              1            1,2             1,2           1,2              1,2
                  Sun Jiadi , han   uyan  ,Shi  hihon  ,Chen  in lan , i Chenchu ,Chen  eidon
                                                                                            J
                 (1 CNOOC Changzhou Paint and Coatings Industry Research Institute Co     Ltd     Changzhou,iangsu   213016,
                                                                              J
                          China 2. CNOOC Changzhou EP Coating Co     Ltd     Changzhou,iangsu   213014,China)


                      A stract:  n  thi   paper,  D   prepolymer   were   ynthe i ed  u in    io- a ed

                 pentamethylene  dii ocyanate( D ) and  trimethylolpropane  a   raw  material .  hen,the

                 i ocyanate( NC ) roup  o   D  prepolymer  were reacted with methyl ethyl  etone o ime
                 to   ynthe i e   loc ed   D   curin   a ent .  he   loc ed   D   curin   a ent   were  applied  to
                 cathodic  electrophoretic  coatin    to  in e ti ate  their  application  per ormance.  he  re ult
                 indicated  that  the   loc ed   D   curin   a ent   demon trated  e cellent  per ormance  with  the
                                t
                 do a e  o    D ,rimethylolpropane  and  methyl  ethyl   etone  o ime  wa   1  mol,0. 45 mol  and
                 0. 55 mol,re pecti ely.  he  emul ion  prepared  with  the   loc ed   D   curin   a ent   and

                 aminated epo y re in re ealed  ood  tora e  ta ility.  he prepared coatin  could  e cured at
                 135   20 min,nd the coatin  per ormance  ati  ied the application re uirement .
                                a
                                                            c
                                                                         l
                                 p
                       ey words:entamethylene dii ocyanate urin  a ent ow-temperature curin  CED coatin
             第一作者:孙家娣(1990—),女,高级工程师,从事水性与电泳涂料的开发与应用研究。
             本文规范引用格式:
             孙家娣,张语洋,施志红,等. 阴极电泳涂料用封闭型  D 固化剂的制备 J . 涂料工业,2024,54(1):50-53.
             S N  J  D,  ANG      ,S      ,et al.  reparation o   loc ed  D  curin  a ent  or cathodic electrophoretic coatin   J .  aint   Coatin    ndu try,
             2024,54(1):50-53.

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