alexa
Reach Us +44-7482877764
Direct Bonding Of Plastic PET Films By Plasma Irradiation | 88421
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Direct Bonding of Plastic PET Films by Plasma Irradiation

18th International Conference and Exhibition on Materials Science and Engineering

Tamio Endo

Sagamihara Surface Lab, Japan

Keynote: J Material Sci Eng

DOI: 10.4172/2169-0022-C6-106

Abstract
Engineering plastic films of PET, polyimide and fluorocarbon polymers are used in various applications such as electrical insulation and mechanical materials, utilizing their strong characteristics. Usually adhesives are used to laminate them, causing environmental issues due to organic solvents. The backsheet of solar panels is composed of PVF/PET/PVF. PET is mechanically strong and less-costly but not good for atmospheric tolerance, whereas PVF is excellent for atmospheric tolerance but costly. We developed unique technology of direct bonding of various films by plasma irradiation. Laminates of insulator Aramid/PPS/Aramid are actually used in motors of electric vehicles. Here we report some examples of plasmabonding technologies and applications. In plasma irradiation apparatus, the plastic film (PET) is attached on a drum electrode, and gas (O2) is discharged to produce plasma to irradiate the film. The irradiated films are laminated by low heat press (140℃). Bonding strength is measured by 180° peel test. The non-irradiated, irradiated and laminated films are characterized by AFM, XPS, FTIR and GCMM. XPS results for the non-irradiated and irradiated PET surfaces show a peak at 288.8 eV, attributed to O=C-O- constituting PET molecular structure. This is increased a little due to creation of COOH at the surface by the irradiation. The bottom at 287.6 eV is increased due to forming of C=O bond on the surface, and total oxygen content in the film is increased by the irradiation. The results of GCMM and FTIR indicate that –OH and –COOH are increased on the PET surface by the irradiation. The irradiated PET are bonded tightly by the heat press at above 120°C, bonding strength is larger than 7 N/cm, beyond cohesion failure. All the results strongly suggest that the bonding is associated by chemical bond due to “dehydrated condensation reaction” as well as “hydrogen bond”. Excellent results of direct bonding on various plastic films, long lifetimes of activated surface effects and long-time variations of the bonding strength are also shown.
Biography

*Project Principal Researcher of Sagamihara Surface Lab, *Professor Emeritus Mie University,  *Honorary Professor Southwest Jiaotong University (China), * Representative of MRS-Japan Research Society (Nano Oxides Materials), *Visiting Researcher, University of California-San Diego, USA (1995), *PhD (Kyoto University), MsD (Gifu University),
Email:[email protected]

Top