Sains Malaysiana 34(2): 113-116 (2005)

Kestabilan Emulsi Surfaktan bagi Sistem

Ternari Glucopone/IPM/Air

(Surfactant Emulsion Stability of Ternary System)

Wan Nurhanani Wan Mohd Nor & Shahidan Radiman

Pusat Pengajian Sains Fizik Gunaan

Fakulti Sains dan Teknologi

Universiti Kebangsaan Malaysia

43600 UKM Bangi, Selangor D.E. Malaysia

Nik Idris Nik Yusoff

MBH Manufacturing & Marketing Sdn. Bhd.

Lot 18, Jalan Modal 23/2, Kawasan MIEL, Fasa 8

40000 Shah Alam, Selangor D.E. Malaysia

ABSTRAK

Kajian ini memfokuskan kelakuan fasa bagi campuran tiga jenis Glucopone: Glucopone 215CS UP, Glucopone 600CS dan Glucopone 650EC dengan campuran isopropil miristat (lPM) dan air. Didapati bahawa gambarajah fasa yang diperolehi adalah berlainan di antara satu sama lain walaupun terangkum dalam kumpulan alkil poliglukosida yang sama tetapi berbeza campuran sebatian. Glucopone 215CS UP memberikan fasa emulsi dan gel, Glucopone 600CS memberikan fasa emulsi, gel dan lamella dan Glucopone 650EC pula memberikan fasa emulsi dan mikroemulsi. Berdasarkan indeks kestabilan emulsi, emulsi yang paling stabil kepada ketiga-tiga jenis Glucopone ini adalah pada lebihan IPM. Julat penghasilan fasa emulsi adalah dalam kurang daripada 20% Glucopone. Penghomogen digunakan dengan halaju 24 kHz memberikan saiz emulsi sekitar 1.0 μm yang mana saiz titisan adalah lebih kecil dan lebih stabil berbanding dengan saiz sekitar 4.0 µm yang dihasilkan dengan pengadun pusar dengan halaju 40

Kata kunci: Glucopone; IPM; gambarajahfasa; emulsi; lamella; mikroemulsi; gel

ABSTRACT

The study focus on phase behavior of three types of Glucopone: Glucopone 215CS UP, Glucopone 600CS and Glucopone 650EC in isopropyl miristate (lPM) and water mixture. The results showed different behaviors among the three types of surfactant even though this involves the same alkyl poliglucosides group but different mixtures of alkylpolyglucosides. In the case of Glucopone 215CS UP it gave emulsion and gel phases, Glucopone 600CS gave emulsion, gel and lamellar phases and Glucopone 650EC gave emulsion and microemulsion phases. Based on the emulsion stability index, the best emulsion of three series Glucopone are obtained when IPM is in excess. Emulsions occur in the range of less than 20% Glucopone. The homogenizer which runs at a high speed of 24 kHz gave emulsion size of ca. 1.0 µm, that is the droplet size is smaller and more stable than emulsion size of ca, 4.0 µm produced by vortex mixer running speed at 40 Hz.

Keyword: Glucopone; IPM; phase diagram; emulsion; lamella; microemulsion; gel

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