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Synthesis and Application of IAS Polymer Deinking Agent
  
DOI：10.11980/j.issn.0254-508X.2014.12.003
Key Words:luaryl polyoxyethylene(9)ether itaconate ester  IAS polymer deinking agent  compound  surface chemical property
Author NameAffiliation
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 
李　丹* 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　强 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:Luaryl polyoxyethylene(9)ether itaconate ester(IAEO) was synthesized by using itaconic acid(IA) and luaryl polyoxyethylene(9)ether (AEO-9) as raw materials then, IAS polymer deinking agent was synthesized by using IAEO, acrylic acid (AA) and sodium methallyl sulfonate (SMAS). Its synthesis processes were studied. The results showed that the esterification under the conditions of the molar ratio of IA to AEO-9 was 1∶1.06 at 125℃ for 4 h with itaconic acid catalyst dosage 6.5% and the polymerization under the conditions of molar ratio of IAEO to AA to SMAS was 1∶2∶1 at 85℃ for 5.5h with 1.5% initiator concentration of total monomer could prepare the IAS polymer with the best deinking performance. Its emulsibility and dispersity were better than AEO-9. The whiteness of the deinked pulp could be increased by 2.3 percentage points and the effective residual ink concentration could be decreased by 12.9 mm2/m2 when it was used with deinking agent TX-10 in m(IAS)∶m(TX-10)=l∶2.
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