Effects of additives on atmospheric pressure gliding arc applied to the modification of polypropylene

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00335042" target="_blank" >RIV/68407700:21220/19:00335042 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/19:00107005 RIV/00216305:26220/19:PU133948 RIV/46747885:24210/19:00009697

Result on the web

<a href="https://doi.org/10.1016/j.surfcoat.2019.04.035" target="_blank" >https://doi.org/10.1016/j.surfcoat.2019.04.035</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2019.04.035" target="_blank" >10.1016/j.surfcoat.2019.04.035</a>

Result language

angličtina

Original language name

Effects of additives on atmospheric pressure gliding arc applied to the modification of polypropylene

Original language description

he polypropylene (PP) strips were modified with the industrial gliding arc discharge working in air flow at 50Hz. The experiments aimed at increased wettability and improved strength of the epoxy adhesive DP190 bond with PP. While working only in dry air, the deterioration of the plasma treatment uniformity was observed at higher treatment speeds than 100mm/s. At the same time, the tensile strength of the adhesive bond and the atomic concentrations of O and N decreased whereas the water contact angle (WCA) measurement error increased. The fast camera measurements revealed that the PP surface was treated by the direct contact with active plasma filaments. The non-uniformity of the PP surface treatment for increased treatment speed can be explained by taking into account the stochastic character of the filament propagation direction and the characteristic time scales of the process. As an improvement of the gliding arc treatment technology a new geometry utilizing the gas cross flow was proposed with the help of gas dynamic simulations. The addition of argon cross flow led to an improvement of the treatment uniformity and, for the optimized conditions, the measured tensile strength of the adhesive bond to PP was 6.5 times higher than for the untreated PP sample. The treatments with the cross flow of argon mixed with water vapors and volatile organic compounds (VOCs), ethanol and isopropanol, did not increase the tensile strength of the adhesive joint even though the wettability was higher for the mixtures with VOCs. Since the concentration of functional groups measured by X-ray photoelectron spectroscopy was well correlated with the tensile strength of adhesive joints, WCA measurements cannot be used as the only parameter judging the success of the plasma treatment aimed at an improvement of adhesive joint strength.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20506 - Coating and films

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Surface & Coatings Technology

ISSN

0257-8972

e-ISSN

—

Volume of the periodical

372

Issue of the periodical within the volume

August

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

45-55

UT code for WoS article

000474676200006

EID of the result in the Scopus database

2-s2.0-85065544773