Quantitative studies on PDMS-PDMS interface bonding with piranha solution and its swelling effect

Kai Seng Koh, Jitkai Chin, Joanna Chia, Choon Lai Chiang

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

In this paper, a low-cost yet effective method of irreversible bonding between two elastomeric polydimethylsiloxane (PDMS) interfaces using Piranha solution is investigated. Piranha solutions at a weight ratio of 3:1 using different acids and hydrogen peroxide were attempted. The average tensile strengths of the device bonded with concentrated sulfuric acid-based piranha solution and nitric acid-based piranha solution were found to be 200 ± 20 kPa and 100 ± 15 kPa respectively. A PDMS surface treated with Piranha Solution demonstrated an increase in hydrophilicity. In addition, relatively straightforward swelling studies of PDMS using a weight loss method with common organic solvents were also investigated. Experimental results show that hexane, toluene, ethyl acetate, n-propyl alcohol and acetone swell PDMS significantly over a duration of up to 1 h and above; PDMS samples reached a steady state of swelling only after 5 min of immersion in other solvents. This will enable researchers to develop devices for the future according to the interaction between the material and the solvents in contact.

Original languageEnglish
Pages (from-to)427-441
Number of pages15
JournalMicromachines
Volume3
Issue number2
DOIs
Publication statusPublished - 4 May 2012
Externally publishedYes

Fingerprint

Polydimethylsiloxane
Swelling
Hydrophilicity
Nitric acid
Hexane
Sulfuric acid
Hydrogen peroxide
Acetone
Organic solvents
Toluene
Alcohols
Tensile strength
Acids
Costs

Cite this

Koh, Kai Seng ; Chin, Jitkai ; Chia, Joanna ; Chiang, Choon Lai. / Quantitative studies on PDMS-PDMS interface bonding with piranha solution and its swelling effect. In: Micromachines. 2012 ; Vol. 3, No. 2. pp. 427-441.
@article{da7e530dec3547bb832a25c3a84377cc,
title = "Quantitative studies on PDMS-PDMS interface bonding with piranha solution and its swelling effect",
abstract = "In this paper, a low-cost yet effective method of irreversible bonding between two elastomeric polydimethylsiloxane (PDMS) interfaces using Piranha solution is investigated. Piranha solutions at a weight ratio of 3:1 using different acids and hydrogen peroxide were attempted. The average tensile strengths of the device bonded with concentrated sulfuric acid-based piranha solution and nitric acid-based piranha solution were found to be 200 ± 20 kPa and 100 ± 15 kPa respectively. A PDMS surface treated with Piranha Solution demonstrated an increase in hydrophilicity. In addition, relatively straightforward swelling studies of PDMS using a weight loss method with common organic solvents were also investigated. Experimental results show that hexane, toluene, ethyl acetate, n-propyl alcohol and acetone swell PDMS significantly over a duration of up to 1 h and above; PDMS samples reached a steady state of swelling only after 5 min of immersion in other solvents. This will enable researchers to develop devices for the future according to the interaction between the material and the solvents in contact.",
keywords = "Bonding effects, Piranha solution, Polydimethylsiloxane (PDMS), Swelling",
author = "Koh, {Kai Seng} and Jitkai Chin and Joanna Chia and Chiang, {Choon Lai}",
year = "2012",
month = "5",
day = "4",
doi = "10.3390/mi3020427",
language = "English",
volume = "3",
pages = "427--441",
journal = "Micromachines",
issn = "2072-666X",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "2",

}

Quantitative studies on PDMS-PDMS interface bonding with piranha solution and its swelling effect. / Koh, Kai Seng; Chin, Jitkai; Chia, Joanna; Chiang, Choon Lai.

In: Micromachines, Vol. 3, No. 2, 04.05.2012, p. 427-441.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Quantitative studies on PDMS-PDMS interface bonding with piranha solution and its swelling effect

AU - Koh, Kai Seng

AU - Chin, Jitkai

AU - Chia, Joanna

AU - Chiang, Choon Lai

PY - 2012/5/4

Y1 - 2012/5/4

N2 - In this paper, a low-cost yet effective method of irreversible bonding between two elastomeric polydimethylsiloxane (PDMS) interfaces using Piranha solution is investigated. Piranha solutions at a weight ratio of 3:1 using different acids and hydrogen peroxide were attempted. The average tensile strengths of the device bonded with concentrated sulfuric acid-based piranha solution and nitric acid-based piranha solution were found to be 200 ± 20 kPa and 100 ± 15 kPa respectively. A PDMS surface treated with Piranha Solution demonstrated an increase in hydrophilicity. In addition, relatively straightforward swelling studies of PDMS using a weight loss method with common organic solvents were also investigated. Experimental results show that hexane, toluene, ethyl acetate, n-propyl alcohol and acetone swell PDMS significantly over a duration of up to 1 h and above; PDMS samples reached a steady state of swelling only after 5 min of immersion in other solvents. This will enable researchers to develop devices for the future according to the interaction between the material and the solvents in contact.

AB - In this paper, a low-cost yet effective method of irreversible bonding between two elastomeric polydimethylsiloxane (PDMS) interfaces using Piranha solution is investigated. Piranha solutions at a weight ratio of 3:1 using different acids and hydrogen peroxide were attempted. The average tensile strengths of the device bonded with concentrated sulfuric acid-based piranha solution and nitric acid-based piranha solution were found to be 200 ± 20 kPa and 100 ± 15 kPa respectively. A PDMS surface treated with Piranha Solution demonstrated an increase in hydrophilicity. In addition, relatively straightforward swelling studies of PDMS using a weight loss method with common organic solvents were also investigated. Experimental results show that hexane, toluene, ethyl acetate, n-propyl alcohol and acetone swell PDMS significantly over a duration of up to 1 h and above; PDMS samples reached a steady state of swelling only after 5 min of immersion in other solvents. This will enable researchers to develop devices for the future according to the interaction between the material and the solvents in contact.

KW - Bonding effects

KW - Piranha solution

KW - Polydimethylsiloxane (PDMS)

KW - Swelling

UR - http://www.scopus.com/inward/record.url?scp=84874477562&partnerID=8YFLogxK

U2 - 10.3390/mi3020427

DO - 10.3390/mi3020427

M3 - Article

VL - 3

SP - 427

EP - 441

JO - Micromachines

JF - Micromachines

SN - 2072-666X

IS - 2

ER -