Silicone Based Nanocomposites Including Inorganic Nanoparticles and Their Methods of Manufacture and Use

Description:

Reference #: 00992

Background:

Compared with pure silicone polymer, silicone-based nanocomposites can realize enhanced mechanical, thermal, electric, dielectric and optical properties by adding functional inorganic nanofillers. However, the incompatibility between inorganic nanofillers and an organic matrix normally leads to large agglomerates of the inorganic nanofillers within the polymer matrix. The agglomeration leads to a loss in optical transparency and severely limits the use of these materials in optical applications. This is especially true for silicone nanocomposites because the surface energy difference between inorganic nanofillers and silicone is very large, creating an even stronger tendency for inorganic fillers to form agglomerates than in other polymers.

Conventional methods for improving compatibility and dispersion of nanofillers adopted by other researchers include physical sonication and surface ligand engineering. However, these techniques only result in visibly transparent silicone nanocomposites, when thin films are made using a spin-coating method.

Invention Description:

The subject invention is an effective method to achieve good dispersion of nanofillers in a silicone matrix and high optical transparency of composite materials.

Advantages and Benefits:

  • Improved compatibility and well-dispersed functional groups

  • High transparency and optical transparency

  • Enhanced mechanical, thermal, electric, dielectric and optical properties

Potential Applications:

The well-dispersed, functional, silicone-based nanocomposites from this invention would have wide optical, optoelectronic, and biomedical applications.

Patent Information:
Title App Type Country Serial No. Patent No. File Date Issued Date Expire Date Patent Status
Silicone Based Nanocomposites Including Inorganic Nanoparticles and Their Methods of Manufacture and Use PCT United States PCT/US12/66254 11/21/2012      
Silicone Based Nanocomposites Including Inorganic Nanoparticles and Their Methods of Manufacture and Use Nationalized PCT United States 14/359,728 9,187,643 5/21/2014 11/17/2015    
For Information, Contact:
Technology Commercialization
University of South Carolina
technology@sc.edu
Inventors:
Brian Benicewicz
Anand Viswanath
Linda Schadler
Richard Siegel
Ying Li
Peng Tao
Keywords:
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