Abstract
The effect of modification of medium density polyethylene (PE-MD), widely used for optotelecommunication cables coatings, with selected auxiliary agents on the properties of surface layer of stampings has been investigated. Blowing agent (SP) and antistatic agent (SA) were used as modifiers. Wetting angle (theta) and free surface energy (gamma(s)) were determined by Owens-Wendt's method [equation (1)-(3)]. Significant effects of SP and SA contents on the properties investigated were observed (Table 2, Figs. 1-3). It was found that gamma(s) decreases monotonically and nonlinearly with increasing SA content what meets wettability decrease. On the contrary, an increase in SP content causes increase in gamma(s)s so also wettability increase. Adsorbed SA quantity does not increase linearly with an increase in its content in PE-MD but slowly asymptotically approaches the limiting saturation. Additionally, on the basis of gamma(s) mean values, the systems of regression equations, describing the dependences between gamma(s) and SA or SP contents, were determined (Table 3).
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 callDisclaimer: 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.
