Abstract
The mechanisms of the impact of the laser assisting effect on the dispersion kinetics and on the structure of the deposited layers in electron beam dispersion of a polymer target were analyzed. The proposed model and analytical expressions adequately describe the kinetic dependence of the polymer materials dispersion rate in a vacuum on the intensity of laser processing of their dispersion zone.
Highlights
When a flow of charged particles impact on the surface of the polymer material in order to generate the active gas phase, complex physicochemical processes proceed, the character and the kinetics of which are determined, first of all, by the particles energy, the nature of the polymer, which affects the structure and composition of volatile dispersion products, their reaction activity and, the structure and properties of the polymerized layers [1]
First of all, in additional heat activation of macromolecules, bond breakage, photochemical activation of the formed volatile dispersion products and, increase in their reactivity
Short-wave electromagnetic radiation may cause photoelectron emission, which reduces the value of the electric charge adsorbed when processed by electrons and, determines a decrease in intensity of the electric field decelerating the incident electron flow
Summary
When a flow of charged particles (ions, electrons) impact on the surface of the polymer material in order to generate the active gas phase, complex physicochemical processes proceed, the character and the kinetics of which are determined, first of all, by the particles energy, the nature of the polymer, which affects the structure and composition of volatile dispersion products, their reaction activity and, the structure and properties of the polymerized layers [1]. The impact of the assisting radiation on the polymer dispersion processes is multifactorial; it depends on the target nature and the radiation parameters [2,3,4]. It is manifested, first of all, in additional heat activation of macromolecules, bond breakage (if the photon energy is higher than the binding energy), photochemical activation of the formed volatile dispersion products and, increase in their reactivity. This, in turn, increases the particles energy and, the dispersion intensity, determines higher secondary electronic emission that affects the character and the kinetics of the secondary polymerization process.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
