Preparation and Characterization of Properties of Microcapsules for Polymeric Composites Self-Repairing

Abstract:

Microcapsules self-repairing polymeric composites belong to a new kind of smart materials. In this work, microcapsules used for polymeric composites self-repairing were prepared by in-situ polymerization. Optical microscopy, scanning electronic microscopy (SEM), fourier transfer infrared spectroscopy (FT-IR), and thermal gravity analysis (TGA) were used to determine the properties of prepared microcapsules such as grain size and their distribution, wall thickness, content of core materials and thermal performances of microcapsules. Results showed that the average grain size was 210 μm and the wall thickness was in the range of 1.8-5 μm depending on agitation rate. Thermal analysis indicated that the repairing agent’s core materials were encapsulated in microcapsules.

• Periodical: Key Engineering Materials (Volumes 334-335)
• Pages: 569-572
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.334-335.569
• Online since: March 2007
• Authors: Rong Guo Wang, Wen Bo Liu, H.Y. Li, Xiao Dong He, Fei Hu Zhang
• Keywords: In Situ Polymerization, Microcapsule, Performance Testing, Self-Repairing Composite

References

[1] S R White, N R Sottos. Autonomic healing of polymer composite. Nature, 2001, (409): 794-797.

[2] S.S. Ranganathan. Development of self-healing polymer composites and photoinduced ring-opening metathesis polymerization. University of Illinois at Urbana-Champaign. Ph. D dissertation, (2002).

[3] M.R. Kessler, Michael Richard. Characterization and performance of a self-healing composite material. University of Illinois at Urbana-Champaign . Ph. D dissertation , (2002).

[4] E.N. Brown, Eric Nathaniel. Fracture and fatigue of a self-healing polymer composite material, University of Illinois at Urbana-Champaign. Ph. D dissertation, (2003).

[5] E.N. Brown. In situ poly(urea-formaldehyde) microencapsulation of dicyclopen- tadiene. (2002).

[6] E.N. Brown. Fracture testing of a self-healing polymer composite. (2002).

[7] M.R. Kessker. Self-healing structural composite materials. Composites , 2003, 34：743-753.

[8] E.N. Brown. Microcapsule induced toughening in a self-Healing polymer composite. (2001).

[9] E.N. Brown, N.R. Sottos. Performance of embedded microspheres for self-Healing polymer composites. Society of experimental mechanical international congress on experimental mechanics. 2000, 563-566.

[10] E.N. Brown, S.R. white. Fracture testing of a self-healing polymer composite. submitted for publication in experimental mechanics. (2001).

[11] J.F. Su. Study on preparation and characterization of self-modulating temperature microPCMs for building materials. Master degree dissertation. Hebei institute of technology, (2004).