首页> 中文学位 >Synthesis,Characterization and Properties of UV Curable Waterborne Hyperbranched Aliphatic Polyesters
【6h】

Synthesis,Characterization and Properties of UV Curable Waterborne Hyperbranched Aliphatic Polyesters

代理获取

目录

文摘

英文文摘

ACKNOWLEDGEMENTS

Chapter 1. SURVEY OF THE THESIS

Chapter 2. INTRODUCTION OF UV-CURABLE WATERBORNE SYSTEMS

2.1. UV curable waterborne coatings

2.1.1. Evolution of UV curable waterborne coatings

2.1.2. General types of waterborne systems

2.1.3. Potential applications of UV curable waterborne systems

2.2. Polyurethane and polyacrylate systems

2.2.1. Introduction

2.2.2. Solubilizing groups

2.2.3. Classification of synthetic polymers used in aqueous media

2.2.4. Aqueous dispersions of preformed step growth polymers

2.3. Modifications of polyurethane/acrylate systems

2.3.1. Grafting

2.3.2. Hybrid process

References

Chapter 3. RADIATION CURING

3.1. Introduction

3.2. Advantages of radiation-cured polyurethanes

3.3. Components of photocurable formulations

3.4. Photocuring

3.5. Kinetics of photoinitiated polymerization

3.6. Determination of polymerization rate (monomer conversion) by DSC

3.7. Determination of polymerization rate (monomer conversion) by spectroscopic methods

3.8. Analytical and characterization techniques

3.8.1. Gel content

3.8.2. Swelling of polymer networks

3.8.3. Pendulum hardness

3.8.4. Hydrophilic characters

3.8.5. Dynamic mechanical thermal analysis (DMTA)

References

Chapter 4. DENDRITIC MACROMOLECULES

4.1. Introduction

4.2. Dendritic macromolecules

4.3. Construction of dendrimers

4.3.1. 'Divergent' dendrimer growth

4.3.2. 'Convergent' dendrimer growth

4.4. Applications

References

Chapter 5. EXPERIMENTAL

5.1 Materials

5.2. Synthesis

5.2.1. Waterborne hyperbranched polyesters (WBHPs)

5.2.2. Synthesis of waterborne hyperbranched polyurethane dispersions(WHPUD)

5.2.3. Synthesis of waterborne hyperbranched polyurethane dispersions(WHPUD3 and WHPUD4)

5.3. Measurements

5.3.1. Rheology

5.3.2. Particle size and its distribution

5.3.3. Morphology

5.3.4. Surface tension

5.3.5. UV curing

5.3.6. FTIR analysis

5.3.7. Photopolymerization kinetics

5.3.8. Surface energy

5.3.9. Gel content

5.3.10. Swelling

5.3.11. Dynamic mechanical thermal analysis (DMTA)

5.3.12. Thermogravimetric analysis (TGA)

5.3.13. Tensile properties

5.3.14. Pendulum hardness

References

Chapter 6. UV CURABLE WATERBORNE HYPERBRANCHED ALIPHATIC POLYESTER (WBHP) AND ITS PROPERTIES

6.1 Water-soluble characters and stability

6.2. Viscosity

6.3. Photopolymerization kinetics

6.4. Drying of WBHP resins

6.5. Final unsaturation conversion

6.5.1 Effect of photoinitiator type and content

6.5.2. Effect of drying temperature

6.5.3. Effect of carboxyl content

6.6. Hydrophilic characters

6.7. Pendulum hardness

6.8. Conclusions

References

Chapter 7. UV CURABLE WATERBORNE HYPERBRANCHED POLYURETHANE DISPERSIONS BASED ON HYPERBRANCHED ALIPHATIC POLYESTER BOLTORNTM H20

7.1. Particle size

7.1.1. Effect of degree of neutralization of ionic groups

7.1.2. Effect of acid content

7.1.3. Effect of dielectric constant of the dispersion medium

7.2. Surface tension

7.3. Rheological behaviors

7.4. Gel content

7.5. Photopolymerization kinetics

7.6. Dynamic mechanical thermal properties

7.7. Tensile properties

7.8. Pendulum hardness

7.9. Swelling

7.10. Thermal behavior

7.11. Morphology

7.12. Conclusions

References

Chapter 8. UV CURABLE WATERBORNE HYPERBRANCHED POLYURETHANE DISPERSIONS INCORPORATING HYPERBRANCHED ALIPHATIC POLYESTERS BOLTORNTM H30 AND BOLTORNTM H40

8.1. Particle size

8.1.1. Effect of acid content

8.1.2. Effect of degree of neutralization of ionic groups

8.2. Rheological behaviors

8.3. Photopolymerization kinetics

8.4. Dynamic mechanical thermal properties

8.5. Thermal behavior

8.6. Conclusions

References

CONCLUSIONS

结论

LIST OF PUBLICATIONS

展开▼

摘要

本论文以端羟基脂肪族超支化聚酯BoltornTMH20为核,将其末端羟基部分改性为甲基丙烯酸酯,部分改性为三级胺盐,从而制得可紫外固化超支化聚丙烯酸酯,重点研究WBHP中甲基丙烯酸酯和三级胺盐的比例对WBHP的水溶解性、紫外光固化动力学及固化膜的热力学性能的影响,实验表明,升高温度或提高三级胺盐在WBHP中的含量均能有效提高其水溶解性。此外,增加水的含量或升高温度可以极有效地降低WBHP的粘度,同时研究了光引发剂的种类和含量、WBHP中丙烯酸酯双键的含量对其光固化速率和最终双键转化率的影响;基于脂肪族超支化聚酯BoltornTMH20,H30和H40合成了一系列的超支化聚氨酯丙烯酸酯,同WBHP类似,采用三乙胺改性WHPUD,使其离子化而与水共混形成水分散体系,研究了其性能及应用前景。重点研究了超支化聚氨酯丙烯酸酯中羧酸和丙烯酸酯的含量对其水分散体系的粒子尺寸、粘度和光固化动力学、以及固化膜的热力学性能和热稳定性的影响,结果说明,WHPUD可以在水中自乳化而形成稳定的水分散体系,从而可以用于水性涂料。

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号