支化型苯乙烯-马来酸酐共聚物超细包覆碳黑的制备

Preparation of nanoscale encapsulated carbon black with branched styrene-maleic anhydride copolymer

摘要:

采用相分离技术在碳黑表面包覆支化型苯乙烯-马来酸酐共聚物BPSMA，制备超细包覆碳黑，探讨了相分离剂滴加速度、BPSMA用量、pH、碳黑质量分数以及分散时间对超细包覆碳黑粒径的影响。 FTIR、TEM和对水接触角测试结果证实碳黑表面包覆了BPSMA，超细包覆碳黑较佳的制备工艺为相分离剂滴加速度3mL/min，BPSMA对碳黑的质量分数20%，pH为10，碳黑质量分数为8%，超声波处理时间10min。与线型苯乙烯-马来酸酐共聚物包覆碳黑分散体相比，相同条件下，BPSMA超细包覆碳黑分散体的粒径较小，稳定性较高，其印花织物的K/S值和摩擦牢度较高。

Abstract:

Nanoscale encapsulated carbon black was prepared by phase separation method using branched styrene-maleic anhydride copolymer. The effects of dropping speed of phase separation agent, amounts of BPSMA, pH, mass ratio of carbon black and dispersing time on particle size of carbon black were investigated. FTIR、TEM and Cantact angle analysis confirmed that BPSMA was successfully encapsulated on the surface of carbon black. The optimal preparation conditions of nanoscale encapsulated carbon black were as follows: the dropping speed of phase separation was 3mL/min, amount of BPSMA was 20%, pH was 10, mass ratio of carbon black was 8% and dispersing time was 10min. It could be found that the particle size was smaller and stability was higher, the K/S value and rubbing fastness of the printed fabric with dispersion which was prepared by BPSMA was higher than that of by linear styrene-maleic anhydride polymer.