Preparation and Properties of Iminodiacetic Acid Chelate Fiber

• Main Authors: QIAN Jin-xin, LI Ming-yu, FENG Chang-gen
• Format: Article
• Language: zho
• Published: Journal of Materials Engineering 2016-07-01
• Series: Journal of Materials Engineering
• Subjects: chloramethylated polypropylene grafted styrene fiber; iminodiacetic acid chelate fiber; aminafion reaction; carboxylation reaction; adsorption capacity
• Online Access: http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.07.010

The iminodiacetic acid chelate fiber(IDACF) which has a property of selective adsorption, was fabricated by amination and carboxylation using chloramethylated polypropylene grafted styrene fiber as raw material. Orthogonal experiment was adopted to study the effect of temperature, time, liquor ratio and the amount of chloroacetic acid on carboxylation reaction. The maximum adsorption capacity of iminodiacetic acid chelate fiber to Cu²⁺ is 65.54mg·g^-1, which is 10.52 times of that of Fe³⁺. Elementary analysis(EA), Fourier transform infrared spectrum(FT-IR), scanning electron microscopy(SEM) and thermogrametry(TG) were used to characterize the structure and the properties of the iminodiacetic acid chelate fiber. The results show that iminodiacetic acid has been transformed to the raw fiber successfully after amination and carboxymethylation, and IDACF has good thermal stability.