高胶粉中残留凝聚剂对ABS白度和色度稳定性影响研究
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摘要
在采用乳液接枝-本体SAN掺混法工艺生产ABS时,需要采用凝聚的方法将接枝聚合物从乳液中分离,获得G-ABS高胶粉。在以硫酸作为凝聚剂生产G-ABS高胶粉时,残留在高胶粉中的硫酸会对ABS的白度和储存应用过程中的色度稳定性造成不利的影响。通过对比不同方法下残留酸性凝聚物的去除效果,发现通过优化凝聚过程、改变升温和碱液加入的方式,能够使凝聚颗粒中的凝聚剂残留最少化。
In the production of ABS by emulsion grafting-bulk SAN blending process,it was necessary to separate the graft polymer from the emulsion by coacervation method to obtain G-ABS high glue powder.When using sulfuric acid as coagulant to produce G-ABS high glue powder,the sulfuric acid remaining in the high rubber powder adversely affected the whiteness of ABS and the chroma stability during storage application process. By comparing the removal effects of different methods to remove residual acidic coagulant,it was found that by optimizing the coagulation process,changing the temperature rise and the manner of adding the lye,the coagulant residue in the agglomerated particles could be minimized.
In the production of ABS by emulsion grafting-bulk SAN blending process,it was necessary to separate the graft polymer from the emulsion by coacervation method to obtain G-ABS high glue powder.When using sulfuric acid as coagulant to produce G-ABS high glue powder,the sulfuric acid remaining in the high rubber powder adversely affected the whiteness of ABS and the chroma stability during storage application process. By comparing the removal effects of different methods to remove residual acidic coagulant,it was found that by optimizing the coagulation process,changing the temperature rise and the manner of adding the lye,the coagulant residue in the agglomerated particles could be minimized.
引文
[1]孙春福,陆书来,宋振彪,等.ABS树脂现状与发展趋势[J].塑料工业,2018,46(2):1-5.
[2]黄金霞,马振航,孟凡忠,等.2015年ABS树脂市场分析[J].化学工业,2016,34(4):45-51.
[3]刘格宏,陈伟峰,张琦,等.ABS色差影响因素分析和控制[J].橡塑资源利用,2016(6):1-12.
[4]徐宁,安明海.在生产环节中对本色ABS树脂色差影响的原因分析[J].橡塑资源利用,2014(5):11-16.
[5]白延军,马晓坤,杨晓峰,等.ABS树脂的色差分析[J].化工科技,2014,22(5):42-43.
[6]刘姜,王亮,张辉,等.熟化工艺对G-ABS凝聚颗粒粒径和致密度的影响[J].合成树脂及塑料,2017,34(3):73-76
[7]刘姜,李睿,宋振彪,等.辅助凝聚剂对G-ABS凝聚效果和产品质量影响研究[J].塑料工业,2017,45(12):29-32.
[8]刘姜,王亮,张辉,刘文辉,等.G-ABS胶乳连续凝聚过程及工艺分析[J].合成树脂及塑料,2017,34(5):65-69.
[2]黄金霞,马振航,孟凡忠,等.2015年ABS树脂市场分析[J].化学工业,2016,34(4):45-51.
[3]刘格宏,陈伟峰,张琦,等.ABS色差影响因素分析和控制[J].橡塑资源利用,2016(6):1-12.
[4]徐宁,安明海.在生产环节中对本色ABS树脂色差影响的原因分析[J].橡塑资源利用,2014(5):11-16.
[5]白延军,马晓坤,杨晓峰,等.ABS树脂的色差分析[J].化工科技,2014,22(5):42-43.
[6]刘姜,王亮,张辉,等.熟化工艺对G-ABS凝聚颗粒粒径和致密度的影响[J].合成树脂及塑料,2017,34(3):73-76
[7]刘姜,李睿,宋振彪,等.辅助凝聚剂对G-ABS凝聚效果和产品质量影响研究[J].塑料工业,2017,45(12):29-32.
[8]刘姜,王亮,张辉,刘文辉,等.G-ABS胶乳连续凝聚过程及工艺分析[J].合成树脂及塑料,2017,34(5):65-69.