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何    等:蓖麻油-异山 醇基水性光固化聚氨酯的合成及性能研究

             长>370 nm时透光率均能维持在90%以上。推测异山                        2. 7  乳液及其对应涂膜的基本性能分析
              醇上2个稠合的四氢呋喃环状结构对紫外光区间存                                 表 3 为水性光固化生物基聚氨酯乳液及其涂膜
             在紫外光的吸收,使得紫外区间的透光率明显下降。                            的基本性能。

                                           表3    WPU乳液及 对应涂膜的基本性能
                                     Table 3 Basic properties of WPU emulsions and coatings
             项目                   WPU-0           WPU-1            WPU-2           WPU-3            WPU-4
             乳液外观                  白色            微白泛蓝光           透明泛蓝光            透明泛蓝光           透明泛蓝光
             乳液稳定性                无沉淀              无沉淀             无沉淀              无沉淀             无沉淀
             铅笔硬度                   HB               2H              3H               4H              5H
             附着力/级                   0                0               0               1                1

                 由表 3 可知,乳液外观与乳液粒径测试结果相一                             room-temperature  self-healability  and  reprocessability
             致,乳液粒径大表现为白色不透明,随着乳液粒径减                                 under visible light[J]. Polymer,2020,190:122199.
             小,乳液透明度增大,最后变为透明泛蓝光;各乳液                            [ 4 ] ZHANG  W  B,ZHANG  Y,LIANG  H  Y,et  al. High  bio-
                                                                     content  castor  oil  based  waterborne  polyurethane/sodium
             经稳定性测试后均能保持稳定无沉淀。涂膜的铅笔
                                                                     lignosulfonate  composites  for  environmental  friendly  UV
             硬度与力学性能分析结果相一致,随着异山 醇含
                                                                     absorption  application[J]. Industrial  Crops  and  Products,
             量的增加,涂膜逐渐变硬变脆,铅笔硬度显著提升,
                                                                     2019,142:111836.
             附着力也相应降低。                                          [ 5 ] FU J C,WANG L,YU H J,t al. Research progress of UV-
                                                                                         e
                                                                     curable polyurethane acrylate-based hardening coatings[J].
             3   结 语                                                 Progress in Organic Coatings,2019,131:82-99.

                                                                [ 6 ] BAGHERI A,JIN J Y. Photopolymerization in 3D printing[J].
                 利用生物基多元醇(蓖麻油与异山 醇)、异佛尔                              ACS Applied Polymer Materials,2019,1(4):593-611.
             酮二异氰酸酯、2,2-羟甲基丙酸和三乙胺,成功合成                          [ 7 ] CORRIGAN N,YEOW J,UDZEWITSCH P,et al. Seeing the
                                                                                       J
             了水性光固化生物基聚氨酯。水接触角与吸水率测                                  light:dvancing materials chemistry through photopolymeri-
                                                                         a
             试结果表明,少量异山 醇的加入可以提高涂层的疏                                 zation[J]. Angewandte Chemie-International Edition,2019,
             水性、改善涂层的耐水性;异山 醇含量过多时涂层                                 58(16):5170-5189.
                                                                [ 8 ] 温  ,范世 ,王 ,等. 异  醇改性水性含氟聚氨酯的
             亲水性提升、耐水性下降。异山 醇的加入能够提高
                                                                     合成与性能研究[J]. 化工新型材料,2022,50(1):151-156.
             涂膜的拉伸强度,涂膜硬度明显上升,但断裂伸长率
                                                                [ 9 ] ZHANG  Y,LIU B Y,HUANG  K  X,et  al. Eco-friendly
             下降,涂层变脆易碎裂。但涂膜在可见光波段拥有良
                                                                     castor  oil-based  delivery  system  with  sustained  pesticide
             好的透明度。综合分析下,WPU-1 和 WPU-2 综合性                           release and enhanced retention[J]. Acs Applied Materials &
             能最佳,在有透光需求的日常表面防护,如玻璃、手机                                Interfaces,2020,12(33):37607-37618.
             屏幕、木材等物品上具有较好的应用前景。                                [10] SHAIK  M  R,ALAM  M,ALANDIS  N  M. Development  of
                                                                     castor  oil  based  poly(urethane-esteramide)TiO   nanocompo-
                                                                                                   /
                                                                                                      2
                                参考文献                                 sites as anticorrosive and antimicrobial coatings[J]. Journal
                                                                     of Nanomaterials,2015,2015:745217.
             [ 1 ] LIANG  H  Y,LI Y C,HUANG  S  Y,et  al. Tailoring  the
                                                                                          J
                                                                                                   J
                                                                                                            e
                                                                [11] SMIGA-MATUSZOWICZ M,ANICKI B,ASZCZ K,t al.
                 performance  of  vegetable  oil-based  waterborne  polyurethanes
                                                                     Novel  bioactive  polyester  scaffolds  prepared  from
                 through incorporation of rigid cyclic rings into soft polymer
                                                                     unsaturated resins based on isosorbide and succinic acid[J].
                 networks[J]. Acs  Sustainable  Chemistry  &  Engineering,
                                                                     Materials Science & Engineering C-Materials for Biological
                 2020,8(2):914-925.
                                                                     Applications,2014,45:64-71.
             [ 2 ] GURUNATHAN  T, CHUNG  J  S.  Physicochemical
                                                                [12] LIANG  H  Y,LIU  L  X,LU J Y,et  al. Castor  oil-based
                 properties  of  amino-silane-terminated  vegetable  oil-based
                                                                     cationic waterborne polyurethane dispersions:torage stability,
                                                                                                    s
                 waterborne  polyurethane  nanocomposites[J]. Acs  Sustainable
                                                                     thermo-physical  properties  and  antibacterial  properties[J].
                 Chemistry & Engineering,2016,4(9):4645-4653.
                                                                     Industrial Crops and Products,2018,117:169-178.
             [ 3 ] FAN W H,IN Y,SHI L J,t al. Transparent,co-friendly,
                                     e
                         J
                                                  e
                                                                收稿日期       2024-04-22(修改稿)
                 super-tough  "living"  supramolecular  polymers  with  fast
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