|
二维码（扫一下试试看！） |
| Synthesis of AAA Polymeric Surfactants and Its Application in Flotation Deinking |
| |
| DOI：10.11980/j.issn.0254-508X.2016.01.005 |
| Key Words:deinking agent α-olefin sulfonate AAA polymeric surfactants whiteness residual ink concentration |
|
| Hits: 5942 |
| Download times: 2466 |
| Abstract:Using sodium α-olefin sulfonate (AOS), acrylic acid (AA) and allyl polyethylene glycol (APEG-700) as raw materials, a series of AAA polymeric surfactants were synthesized by aqueous solution radical polymerization. The synthesis process was optimized, and the combined deinking performance of AAA polymeric surfactant with nonionic surfactants was investigated. The structure of product was characterized by FT-IR, the relative molecular mass and its distribution of the product were measured by GPC, and the deinking effects of the product, the mixed deinking agents and the commercial deinking agent were compared. It was found that the best deinking effect of the product could be obtained when the preparation conditions was as follows: n(AOS)∶n(AA)∶n(APEG-700)=1∶3∶1, w(APS)=2.5%, reaction temperature 80℃, reaction time 5 h and polymer pH value 8. When the deinking agents of m(AAA)∶m(AEO-9)=2∶1 and dosage was 0.2%, the whiteness of the deinked pulp reached 72.4% and the residual ink concentration was only 51.2 mm2/m2. |
| View Full Text HTML View/Add Comment Download reader |
|
|
|