【摘要】 采用水溶液聚合法,以丙烯酸(AA)、丙烯酸聚氧乙烯酯(BE)合成了一系列阴离子型P(AA-BE)高分子脱墨剂。考察了其最佳合成工艺,并研究了该产品与非离子型表面活性剂复配应用效果。结果表明,当n(AA)∶n(BE)=4∶1,聚合温度为80℃,w(APS)=2.5%时,可达最佳脱墨效果;P(AA-BE)与AEO-9复配可取得较佳效果,当m[P(AA-BE)]∶m(AEO-9)=2∶1,用量0.2%(其他助剂一定)时,废旧报纸纸张白度可达65.3%,残余油墨量仅为198.3 mg/kg。更多还原

【Abstract】 A series of anionic poly(acrylic acid-polyoxyethylene acrylate) [P(AA-BE)] deinking agents were synthesized by aqueous solution polymerization of acrylic acid(AA) and polyoxyethylene acrylate(BE).The synthesis process was optimized.The combined performance of P(AA-BE) deinking agent with nonionic surfactants was investigated.It was found that the best deinking effect can be obtained when the preparation conditions of the P(AA-BE) was as follows: n(AA) ∶n(BE)=4 ∶1;w(APS)=2.5%;reaction temperature=80 ℃.The P(AA-BE) shows better performance when used together with AEO-9.When m[P(AA-BE)] ∶m(AEO-9)=2 ∶1 and P(AA-BE) is 0.2%;the whiteness can be reached as 61.3% and the residual ink concentration is only 198.3 mg/kg.更多还原