Dissertation > Excellent graduate degree dissertation topics show

UV-curable waterborne polyurethane acrylate oligomers

Author: YinHaiLong
Tutor: QingNing
School: Wuyi University
Course: Applied Chemistry
Keywords: ultraviolet curable waterbome polyurethane-acrylate pentaerythritol triacrylate polysiloxane
CLC: TQ630.1
Type: Master's thesis
Year: 2011
Downloads: 42
Quote: 0
Read: Download Dissertation


Ultraviolet (UV) curable coating technology is gaining increasing interest as it allows high production speeds of coated articles. The UV curable waterborne coatings has both the advantages of UV curable coatings and waterborne coatings, such as environmental friendly, fast curable speed, energy saving, excellent performance of film, etc. It has been an important direction of coatings. The polyurethane-acrylate (PUA) coatings has been researched and applied more than others for its best performance.In this paper, a novel UV curable waterborne polyurethane acrylate (WPUA) for optimal properties with different functional capping agents, prepared from isophorone diisocyanate(IPDI), polypropylene glycol(PPG210)/polyester polyol (7112) and pentaerythritol tri-acrylate (PETA). Both the optimum conditions of the synthetic reactions and the effects such as the effects of hydrophilic group content on emulsions were studied for the PUA resins. The chemical modification was carried out by grafted epoxy resin (E-44) and the problem of stickiness of WPUA film before UV curable was solved effectively when we used the PPG/7112 as mixed soft segments. It was found that the film of WPUA after UV curable had a positive effect on the water resistance and solvent resistance, but base resistance thereof is on general level.In order to raise the resistance of the waterborne resin’s films, a multifunctional capping UV curable WPUA with mixed hydrophilic groups and chemically modified polysiloxanes were prepared. The WPUA resin was prepared from IPDI, polysiloxane (WACKER IM 22 and IM 15), polyester polyol (7112) and PETA. Nonionic hydrophilic groups of polyethylene glycol (PEG600) were introduced into the WPUA chains could reduce the anionic hydrophilic group content of the DMPA; The results show that the problem of water resistance, solvent resistance, acid resistance and base resistance of WPUA film after UV curable was solved effectively when we used the mixed hydrophilic groups and the chemical modification was carried out by grafted E-44 and the polysiloxane

Related Dissertations

  1. Preparation and Application of Alkoxylated Silicone Phosphate,TQ423.11
  2. Research on Supramolecular Self-assembly and Properties of Functionalized Polysiloxane,O634.41
  3. Synthesis and Characteristics of Pyrene-Briged Ladderlike Polyphenylsiloxane,O634.41
  4. Preparation and Performance of Polymethyl (Ketoxime) Siloxane,TQ324.21
  5. Research on Radiation Crosslinking under Electron Beam of High Density Polyethylene with Sensitizers,TQ325.12
  6. Modification of Bismaleimide Resins by Hyperbranched Polysiloxanes,TQ323.7
  7. Study of Novel Modified Cyanate Ester Resin Based on Hyperbranched Technology,TQ323.5
  8. Toughening of Cyanate Ester Resins,TQ323.4
  9. Heat-resistance Modification of Methyl Vinyl Silicone Rubber and Application,TQ333.93
  10. The synthesis of chiral diamine derivatives in asymmetric catalysis,O643.32
  11. Preparation and Properties of Polysiloxane Grafting Multi-walled Carbon Nanotubes/Polymer Nanocomposites,TB383.1
  12. Study on Preparation Characterization and Flame Retardancy on Polycarbonate of Carboxyl-Polysiloxane and Hydroxyl-Polysiloxane,TQ314.248
  13. Study on Preparation of Core-shell Organosilicon Particles and Modification of PVC Resin,TQ325.3
  14. Polysiloxane graft and block modified polyurethane aqueous dispersion synthesis and properties of,O634.41
  15. Comb- shaped silicone-modified acrylic resin of,O631.3
  16. Prejparation and Characterization of Unsaturated Chiral Monomer and Chiral Stationary Phase with Chiral Side Chains,O631.3
  17. Fluorinated silicon amphiphilic comb Synthesis and Characterization of Graft Copolymers,O631.3
  18. Research on Synthesis and Application of Hydrogen-containing Polysiloxane,O634.41
  19. Preparation of Cationic Polysiloxane Agents and Their Application,TQ316.3
  20. Studies on Synthesis of Fluorinated Acrylate Modified Fluorosilicone Materials,O621.3

CLC: > Industrial Technology > Chemical Industry > Paint Industry > General issues > Basic theory
© 2012 www.DissertationTopic.Net  Mobile