Reclamation of Waste Polystyrene by Sulfonation

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• 作者：Yasuhito Inagaki ; Miyuki Kuromiya ; Tsutomu Noguchi ; and Haruo Watanabe
• 刊名：Langmuir
• 出版年：1999
• 出版时间：June 8, 1999
• 年：1999
• 卷：15
• 期：12
• 页码：4171 - 4175
• 全文大小：94K
• 年卷期：v.15,no.12(June 8, 1999)
• ISSN：1520-5827

文摘

Waste polystyrene containing additives was converted into a polymeric flocculant by a chemicalmodification. Specifically, waste polystyrene and waste high-impact polystyrene (HI-PS) containing rubbercomponents or a coloring agent were sulfonated to produce a water-soluble polymer whose molecularweight ranged from 400 000 to 700 000. The polymer provides superior purification of the supernatantafter flocculating a kaolin suspension than a conventional polymeric flocculant such as a partially hydrolyzedpolyacrylamide (hereafter abbreviate PAA). Moreover, using the polymer and a PAA together provides ahigher sedimentation rate and a purer supernatant in the treatment of actual wastewater than using eachone separately. A new reclamation technology to convert waste plastic into a functional polymer is reported.