Effect of rubber compounding agent on adhesion strength between rubber and heat-assisted plasma-treated polytetrafluoroethylene (PTFE)

Ohkubo, Yuji; Shibahara, Masafumi; Ishihara, Kento et al.

Journal of Adhesion, 2018, 95(3), 242-257

Number of Access:834（2025-08-21 00:35 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84519

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Title
Effect of rubber compounding agent on adhesion strength between rubber and heat-assisted plasma-treated polytetrafluoroethylene (PTFE)
Creator
NRID
1000010525786 1000010525786
ORCID
0000-0001-7366-5108 0000-0001-7366-5108
researchmap permalink
okb okb
Scopus Author ID
37461879400 37461879400
CreatorName
Ohkubo, Yuji
NRID
1000080470219 1000080470219
CreatorName
Shibahara, Masafumi
CreatorName
Ishihara, Kento
NRID
1000010470220 1000010470220
CreatorName
Nagatani, Asahiro
NRID
1000020553085 1000020553085
CreatorName
Honda, Koji
NRID
1000090152008 1000090152008
researchmap permalink
endo5352 endo5352
Scopus Author ID
7402712908 7402712908
CreatorName
Endo, Katsuyoshi
NRID
1000060240074 1000060240074
researchmap permalink
read0014013 read0014013
Scopus Author ID
7201754767 7201754767
CreatorName
Yamamura, Kazuya
Subject
Adhesive-free adhesion
fluoropolymers
rubber compounding agent
silica
surface treatment by exited gases
X-ray photoelectron spectroscopy
Abstract
Although heat-assisted plasma treatment enables drastic improvement of the adhesion property of polytetrafluoroethylene (PTFE), plasma-treated PTFE does not strongly adhere to any adherend. To clarify which rubber compounding agents positively affect the adhesion strength of a plasma-treated PTFE/rubber assembly, six types of unvulcanised rubbers were prepared and thermally compressed to a plasma-treated PTFE sheet. Thus, it was found that SiO 2 addition to rubber drastically increased the adhesion strength of a plasma-treated PTFE/rubber assembly and cohesion failure of rubber occurred with large fractions of SiO 2 although no adhesives were used. To confirm the reaction between plasma-treated PTFE and SiO 2 powder, X-ray photoelectron spectroscopy (XPS) measurements were performed for the thermally compressed SiO 2 /PTFE assembly after repeated washing. The XPS results indicated that hydrophilic SiO 2 powder strongly adhered to the plasma-treated PTFE, whereas hydrophobic SiO 2 powder did not adhere to the PTFE. In this paper, a model was proposed for a possible mechanism of strong adhesion of a PTFE/rubber assembly through both hydrogen and covalent bonds between silanol groups of the SiO 2 powder surface in the rubber and hydroxyl or carboxyl groups on the plasma-treated PTFE.
Publisher
Taylor & Francis
Source Title
Journal of Adhesion
Volume (Issue)
95(3)
Page
242-257
Date of Issued
2018-02-14
Language
English
Handle URL
https://hdl.handle.net/11094/84519
PISSN
00218464
eISSN
15455823
NCID
AA00692001
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1080/00218464.2018.1428095
Access Rights
open access
CopyRight
© 2018 The Author(s). Published by Taylor & Francis. This is an Open Access article. Non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly attributed, cited, and is not altered, transformed, or built upon in any way, is permitted. The moral rights of the named author(s) have been asserted.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article