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Application of Anionic PAMAM Dendrimers in Organic Retention and Drainage System
  
DOI：10.11980/j.issn.0254-508X.2017.04.004
Key Words:polyamidoamine dendrimer  modification of terminal group  anonic organic particulate  retention and drainage  organic microparticle retention and drainage aid system
Fund Project:山东省科技发展计划(2011GGX10802)；山东省自然科学基金(ZR2012CM021)。
Author NameAffiliation
秦　影 齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 
傅英娟* 齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 
邵志勇 齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 
吴倩倩 齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 
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Abstract:The anionic PAMAM dendrimers were obtained through hydrolyzing the ester-terminated groups of Gn.5PAMAM in NaOH solution, the structure of obtained A-Gn.5PAMAM was characterized by FT-IR. The A-Gn.5PAMAM of different generations were used as organic anion microparticles for the microparticle retention and drainage system of the bleached deinked ONP. The results showed that the A-Gn.5PAMAM combined with S-CPAM and CPAM could provide higher furnish retention, and the efficiency of higher generation of A-Gn.5PAMAM was higher than that of the lower one. The S-CPAM (CPAM)/A-Gn.5PAMAM system could adapt to a broad pH range, and the retention and drainage system had better shearing resistance. It also found that the A-Gn.5PAMAM had a strong synergetic effect with bentonite as anionic particulate in the microparticle retention and drainage aid system.
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