原液着色聚酯纤维原位聚合用自分散纳米炭黑的制备及其性能  

Preparation and properties of self-dispersed nanoscale carbon black for in-situ polymerization of spun-dyed polyester fiber

作　　者：宋伟广 王冬 杜长森 梁栋 付少海 SONG Weiguang;WANG Dong;DU Changsen;LIANG Dong;FU Shaohai(Jiangsu Engineering Research Center for Digital Textile Inkjet Printing(Jiangnan University),Wuxi,Jiangsu 214122,China;Suzhou Sunmun Technology Co.,Ltd.,Suzhou,Jiangsu 215337,China)

机构地区：[1]江苏省纺织品数字喷墨印花工程技术研究中心(江南大学),江苏无锡214122 [2]苏州世名科技股份有限公司,江苏苏州215337

出　　处：《纺织学报》2023年第4期115-123,共9页Journal of Textile Research

基　　金：国家重点研发计划项目(2020YFB0311401);江苏省自然科学基金项目(BK20190613)。

摘　　要：针对原液着色聚酯纤维原位聚合用乙二醇基色浆储存稳定性差、运输成本高的问题,采用控制变量法研究炭黑、分散剂、分散工艺对自分散纳米炭黑的影响,利用响应面优化试验,探讨制备过程中分散剂质量分数、研磨时间、研磨转速对自分散纳米炭黑粒径的影响,得出最优研磨分散条件。借助透射电子显微镜、热重分析仪、接触角测量仪等探究了自分散纳米炭黑的表观形貌、耐热性能和亲水性能等。结果表明:选用SUA-305作为分散剂,AP-104H作为炭黑,在分散剂质量分数为30%,研磨时间为2 h,研磨转速为3 500 r/min时,自分散纳米炭黑粒径最小,为85 nm,多分散性指数(PDI)为0.163,储存稳定性优良,预估储存周期为26.8个月;自分散纳米炭黑与乙二醇的接触角为7°,并展现出良好的自分散性能;自分散纳米炭黑的耐热性良好,满足在聚酯聚合阶段280℃不分解的要求。Objective The traditional polyester fiber spun-dyed mostly uses in-situ polymerization method to prepare high-performance colored polyester chips,where the carbon black grinding is dispersed in the ethylene glycol,and the carbon black ethylene glycol color paste is applied to the in-situ polymerization of polyester.However,conventional carbon black ethylene glycol color paste have poor storage stability and high transportation cost.In view of this problem,this study uses spray drying method to make self-dispersed nanoscale carbon black,aiming to effectively decrease transportation cost and improve the storage stability of carbon black in ethylene glycol.Method In this study,nanoscale carbon black paste was prepared into self-dispersed nanoscale carbon black by a spray-drying method.The effects of carbon black,dispersant and dispersion process on self-dispersed nanoscale carbon black were parametrically studied.The effects of mass fraction of dispersant,grinding time and grinding speed on the particle size of self-dispersed nanoscale carbon black were discussed based on the response surface optimization experiment in order to obtain the optimal grinding and dispersion conditions.In addition,transmission electron microscope(TEM),thermogravimetric analysis(TGA)and contact angle meter were employed to study the apparent morphology,heat resistance and hydrophilicity.Results Parametrical study was carried out to investigate the influence of dispersant and carbon black on the particle size of self-dispersed nanoscale carbon black.When the dispersant SUA-305 and the carbon black AP-104H were selected,the particle size of self-dispersed nanoscale carbon black was found to be the smallest(Fig.2).The same method was used to study the influence of process conditions on the particle size and PDI(polydispersity index)of self-dispersed nanoscale carbon black.When the mass fraction of dispersant was 30%,the grinding time was 2 h,and the grinding speed was 3500 r/min,the minimum particle sizes of self-dispersed nanoscale carbon b

关 键 词：自分散 纳米炭黑 原液着色 聚酯纤维 响应面优化 

分 类 号：TS193.21[轻工技术与工程—纺织化学与染整工程]