Dissertation > Excellent graduate degree dissertation topics show

Study on Low Temperature Cured Silver Paste Used in Membrane Switch

Author: JiangBin
Tutor: LiXinXin
School: East China University of Science and Technology
Course: Materials Science and Engineering
Keywords: Low Temperature Cured Silver Paste Silver Powder Resin Binder Phase Curing Condition Bend Resistance Capability
CLC: TN04
Type: Master's thesis
Year: 2012
Downloads: 582
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of science and technology, many researches are putting more emphasis on the low temperature cured silver paste. Silver paste is kind of significant functional conducting material which is usually used in membrane switch and printed circuit board. Silver paste has excellent electrical conductivity and mechanical properties, including hardness, adhesiveness and bend resistance capability. The conductive phase and resin binder phase are the most influential ingredients in the paste.The preparation and manufacturing of silver paste was studied in this paper and the effect of the content of silver powder, the shape of silver, diameter of silver powder was studied and the curing conditions and resin matrix on electrical property has been studied at the same time. It can be seen from the experiments that the proper addition of spherical silver powders in the flaky silver would improve the electrical conductivity and enhance bend resistance capability.The effect of different resin binder phase on electrical conductivity and mechanical properties of silver paste was studied in the paper. The bending strength of silver paste using polyurethane as resin phase was studied. Results show that the electrical conductivity of silver paste which used mixture of flaky silver and spherical silver as conductive phase is better than that of flaky silver and spherical silver. It also showed that the bending property of silver paste and the surface wettability of silver powder was improved dramatically if polyurethane was used as the resin matrix. In addition, the solvent-evaporation of paste was researched by DSC and TG, the curing temperature and time was optimized.

Related Dissertations

  1. Composite Film of Superfine Silver Powder/Resin and Its Conductivity,TB383.2
  2. Deicing Salt Resistance of Cement Concrete Pavement,U416.216
  3. Polyacrylate reactive powder concrete performance,TU528
  4. Study on Prediction of Common Concrete Strength by Artificial Neural Network,TU528
  5. Engineering inspection and assessment of structural concrete strength,TU755.7
  6. Performance Research on Cold Recycling Mixtures with Foamed Bitumen,U414
  7. Study on Reactive Powder Concrete with Natural Siliceous Admixture,TU528
  8. Experimental Study on the Mix Design of Surface Dry-mixed Mortar and the Bonding Strength with Wall Materials,TU578.12
  9. Ligand precipitation - silver powder prepared by thermal decomposition of fibrous,TB383.3
  10. Preparation and Characterization of Silver Powder and Its Photosensitive Paste,TB34
  11. Research of Cast-in-place Concrete Nondsetuctive Test of the Compositive Building of Science and Technology of Northeastern University,TU755.7
  12. Study on Effective-curing-age of Concrete under the Same Curing Condition to Structures,TU528
  13. Processing and Property Study of Mg2TiO4 -based Microwave Dielectric Ceramics,TN04
  14. Planar metamaterial electromagnetic loss characteristics,TN04
  15. Performance of Ni electrode paste and in multilayer chip PTCR Applications,TN04
  16. Study on Preparation and Properties of Sip/Al Electronic Packaging Materials,TN04
  17. The Preparation and Structure of PEDOT: PSS Based Organic Spintronic Materials and Devices,TN04
  18. Measurement of the Dielectric Parameter of Radio Frequency Material with the Coaxial Method,TN04
  19. Technology and Mechanism of Sintering of AlN for Electronic Packaging,TN04
  20. The tungsten copper heat sink material prepared new technology research,TN04
  21. Synthesis, Structures and Properties of New M-TCNX Charge-transfer Compounds,TN04
  22. Study on the Process and the Electromagnetic Properties of Fecob-based Nano-magnetic Thin Films,TN04

CLC: > Industrial Technology > Radio electronics, telecommunications technology > General issues > Material
© 2012 www.DissertationTopic.Net  Mobile