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Volume 6
Research & Reviews: Journal of Material Sciences
CrystalloPolySci 2018
November 19-20, 2018
4
th
International Conference on
Crystallography & Novel Materials
&
9
th
International Conference on
Biopolymers & Polymer Sciences
November 19-20, 2018 Bucharest, Romania
Mariana Costa, Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C9-038
Synthesis of novel autoreactive and ecological monocomponent adhesives for the shoe industry
Mariana Costa
Instituto Politécnico do Cávado e do Ave – IPCA, Portugal
M
icroencapsulation is a process in which active substances are enclosing inside an extremely small capsule. The wide
applications ofmicrocapsules inmany fields have attracted increasing research on the synthesis as well as functionalization
of different types of capsules. Besides the importance of microcapsules for controlled chemical release and uptake in many
industrial applications, these are often difficult to produce with the desired combination of high mechanical strength and high
shell permeability. We report on experimental studies for the synthesis of narrow size distribution polyurethane/polyurea shell
microcapsules containing isocyanate, used as a crosslinker for adhesive formulations. The microcapsules were produced, in a
continuous mode, by a system involving amicrofluidic device, which originates amonodisperse oil-in-water emulsion, followed
by interfacial polymerization at the emulsion droplets surface. The resulting microcapsules are intended to be added to an
adhesive base (OH prepolymer), leading to an autoreactive and ecological monocomponent adhesive. The proposed technique
has advantages of being readily controlled, cost-effective and easy to operate. In addition, microfluidics can control the process
of encapsulation by varying flow parameters and/or using a proper geometry of microfluidic channels. By microencapsulating
the reactive agent, the product is safer for handling by the industry operators, and the activation mechanism can be controlled
more precisely (enabling higher flexibility of application /use case scenarios). The advances made of the current study can be
an important contribution in the innovation and development of new sustainable/green methods and products that can, in the
future, compete in the monocomponent adhesives market.
Biography
Mariana Costa has a Master's Degree in Chemical Engineering and she is currently working in Polytechnic Institute of Cavado and Ave. The project that she is
involved is about the microencapsulation field where the goal is to produce a microfluidic device to encapsulate isocyanate.
marianacosta@ipca.pt