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| Synthesis of AIP-I-AIP Nonionic Surfactant and Its Application in Flotation Deinking |
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| DOI：10.11980/j.issn.0254-508X.2014.06.002 |
| Key Words:AEO-3 IPDI PEG AIP-I-AIP nonionic surfactants deinking agent |
| Author Name | Affiliation | | 张昌辉 | 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安,710021 | | 雷莉娜* | 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安,710021 | | 李 姣 | 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安,710021 | | 李翔虹 | 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安,710021 | | 胡孟秋 | 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安,710021 |
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| Abstract:A series of nonionic surfactants were synthesized by using lauryl alcohol polyoxyethylene ether(AEO-3), isophorone diisocyanate (IPDI) and polyethylene glycol(PEG) as raw materials. The synthesis process was optimized. The chemical structures of the products were characterized by FT-IR and 1H-NMR, and the physical properties were also determined. The application of the mixed deinking agents in waste paper deinking with flotation process and the comparison between the product and commercial deinking agent were studied. The optimal synthesis condition was determined as follows: the molar ratio of lauryl alcohol polyoxyethylene ether (AEO-3) to isophorone diisocyanate (IPDI) to polyethylene glycol (PEG) to isophorone diisocyanate (IPDI) was 1∶1.5∶1, reaction at 70℃ for 2 h and the amount of the catalyst was 1.0% on the total monomers. When the deinking agents of m(AIP-I-AIP)∶m(AES)∶m(AEO-3)=1∶2∶1 and with dosage 0.2%; the brightness of the deinked pulp was 68.6% and the residual ink concentration was 41.4 mm,sup>2/m2. |
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