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工業技術研究院

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技術名稱: 溶劑型分散液安定性評估技術

技術簡介

本計畫透過溶劑之溶解度參數對分散系統耐化性、流變行為之探討,建立「快速」、「量化」之溶劑型微粒分散系統安定性與驗證技術。

Abstract

The rules of evaluation stability of solvent-base dispersant have been established by zeta potential measurement, and by using the method of solubility parameter and rheology behavior, the stability window of solvent-base pigment dispersion has been established.

技術規格

量測溶劑型分散液之zeta potential,快速評估配方之相對安定性;運用溶劑之Hansen溶解度參數建立化學安定性視窗,藉由粒徑變化、黏度變化為安定性判斷標準:粒徑變化<|25nm|、黏度變化<|5cps|,訂定溶劑型分散液安定視窗為Δδ≧5;以Herschel-Bulkley Model搭配黏度變化、搖變性與熱安定性,訂定溶劑系統流變參數安定性量化指標,流體指數(n)與降伏應力(σo):n≧0.95,σo<10-4 Pa。

Technical Specification

A series of pigment dispersion have been characterized by various solvent with a various solubility parameter (δ) and viscosity with Herschel-Bulkley Model. The experimental results of yield stress (σo) and rate index (n) show that the stability of pigment dispersion could be quantitative describe by the Δδ, σo and n. The quantitative stability window of pigment are used to indicate stability of pigment dispersion, and the pigment dispersion stability index was defined. For example, the stability index of solvent-type dispersion was defined as follow: Δδ≧5, σo<10-4Pa, n≧0.95.

技術特色

加速分散液之篩選及終端應用產品開發速度。

應用範圍

none

接受技術者具備基礎建議(設備)

none

接受技術者具備基礎建議(專業)

none

技術分類 特用化學品

聯絡資訊

聯絡人:張信貞 應用化學研究組

電話:+886-3-5732778 或 Email:jennychang@itri.org.tw

客服專線:+886-800-45-8899

傳真:+886-3-5732844

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