Effect of plasma treatment (He/CH4) on the glass surface for the reduction of powder flux adhesion in the spray drying process

Nadiah Ramlan, Nazirah Wahidah Mohd Zamri, Mohamad Yusof Maskat, Mohd. Suzeren Md. Jamil, Chin Oi Hoong, Lau Yen Theng, Saiful Irwan Zubairi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A 50Hz glow discharge He/CH4 plasma was generated and applied for the glass surface modification to reduce the powder adhesion on wall of spray dryer. The hydrophobicity of the samples determined by the water droplet contact angle and adhesion weight on glass, dependent on the CH4 flow rate and plasma exposure time. The presence of CH3 groups and higher surface roughness of the plasma treated glass were the factors for its hydrophobicity development. Response surface methodology (RSM) results using central composite rotatable design (CCRD) showed that optimal responses were obtained by the combination of parameters, CH4 gas flow rate = 3 sccm and exposure time = 10 min. In optimum conditions, the contact angle increased by 47% and the weight of the adhesion reduced by 38% (w/w). The plasma treatment could enhance the value of the contact angle and thus reduced the adhesion on the spray dryer glass surface.

Original languageEnglish
Pages (from-to)1147-1155
Number of pages9
JournalSains Malaysiana
Volume47
Issue number6
DOIs
Publication statusPublished - 1 Jun 2018

Fingerprint

drying
sprayers
adhesion
drying apparatus
glass
hydrophobicity
flow velocity
glow discharges
gas flow
surface roughness
methodology
composite materials
water

Keywords

  • Flux adhesion
  • Hydrophobic
  • Plasma treatment
  • Powder
  • Spray dryer
  • Surface treatment

ASJC Scopus subject areas

  • General

Cite this

Effect of plasma treatment (He/CH4) on the glass surface for the reduction of powder flux adhesion in the spray drying process. / Ramlan, Nadiah; Zamri, Nazirah Wahidah Mohd; Maskat, Mohamad Yusof; Md. Jamil, Mohd. Suzeren; Hoong, Chin Oi; Theng, Lau Yen; Zubairi, Saiful Irwan.

In: Sains Malaysiana, Vol. 47, No. 6, 01.06.2018, p. 1147-1155.

Research output: Contribution to journalArticle

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AU - Maskat, Mohamad Yusof

AU - Md. Jamil, Mohd. Suzeren

AU - Hoong, Chin Oi

AU - Theng, Lau Yen

AU - Zubairi, Saiful Irwan

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