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November 22-23, 2018 | Paris, France

Journal of Materials Science and Nanotechnology | Volume: 2

Materials Physics and Materials Science

International Conference on

Obtaining of graphene/polymer composites by hydrosilylation reaction for SLA printer

Natia Jalagonia

Vekua Sukhumi Institute of Physics and Technology, Georgia

hree-dimensional (3D) printing is often considered

synonymous with additive manufacturing. Several types

of 3D printers are known where we usually used polymers

are. Stereolithography (SLA) employs a single beam laser to

polymerize or crosslink a photopolymer resin. By drawing on

the liquid photopolymer resin with a light beam, thin layers

of polymer are stacked layer by layer. Elastomer based on

polydimethysiloxanes (PDMS) are important class of materials,

because of properties such as chemical inertness, flexibility,

optical transparence, also they have a very low surface tension

(20.4mN/m) and glass transition temperatures (146K). it is

possible to print a support material that holds the PDMS

prepolymer in place until it can be cured by UV light using a

photoactivecross-linkingagent. It ispossibletograftphotoactive

group on PDMS backbone and obtain new UV curable polymer.

The aimof presentedwork is obtaining of photopolymers based

on PDMS. For purpose, we have conducted hydrosilylation

reaction of polymethylhydrosiloxane (PMHS) with allyl acrylate

and vinyltriethoxysilane in the presence Karstedt’s catalyst in

Toluene. Obtained polymer is liquid which are well soluble in

organic solvents with specific viscosity ηsp � 0.4. The end of

reactionwas testedby FTIR, where peak at 1260 cm

-1

disappears

which belongs to Si-H bonds. After this the polymer distilled in

vacuum, cross-linking agent was adding about 1% and curried

by UV during 1h.

Speaker Biography

Natia Jalagonia has completed her PhD at the age of 31 years from Tbilisi State

University, Georgia. She is the head of Chemical Technology Laboratory of Ilia Vekua

Sukhumi Institute. She has over 30 publications.