预分散C.I.颜料黄14的制备
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摘要
以3,3'-二氯联苯胺盐酸盐(DCB)和邻甲基乙酰乙酰苯胺(AAOT)为原料,在偶合反应结束后,向制备的C.I.颜料黄14(PY14)水分散液中添加聚乙烯蜡(PEW),考察了PEW添加量、加热温度、加热时间、搅拌转速、pH、PEW粒径对颜料性能的影响。得到较优制备条件为PY14与PEW质量比1.0∶1.0、加热温度80℃、加热时间20 min、40～60目PEW、pH=7.0、转速250 r/min,在该条件下制备出直径为1～2 mm、粒径均一、具有核壳结构和疏水性能的预分散C.I.颜料黄14(预分散颜料PY14)。预分散颜料易于从水相分离,滤饼含水量从PY14颜料的79.29%降低至预分散颜料PY14的59.85%,过滤时间为PY14颜料的1/20;分散过滤值(FPV)从PY14颜料的0.75 MPa/g降低至预分散颜料PY14的0.06 MPa/g;所得颜料不需经过强力粉碎,可抑制粉尘污染的产生;在保持与原颜料相近的色光、饱和度、鲜艳度等颜料性能前提下,提升了颜料的着色力。
Using 3,3'-dichlorobenzidine hydrochloride(DCB) and o-methylacetoacetylaniline(AAOT) as raw materials, polyethylene wax(PEW) was added to the aqueous dispersion of C.I. pigment yellow 14(PY14) after the coupling reaction. The effects of adding amount of PEW, heating temperature, heating time, stirring speed, p H value, and particle size of PEW on the properties of pigment were investigated. A pre-dispersed PY14 with a diameter of 1～2 mm, uniform particle size and nuclear-shell structure and hydrophobic property was prepared under the optimal conditions of mass ratio of PY14 to PEW 1.0∶1.0, heating temperature 80 ℃, heating time 20 min, particle size of polyethylene wax 40～60 mesh, pH=7.0, stirring speed 250 r/min. The pre-dispersed PY14 was easy to separate from the water phase. For PY14, the water content of the filter cake was 79.29%, while that was only 59.85% for the pre-dispersed PY14. The filtration time of the pre-dispersed PY14 was 1/20 of that of PY14. The filter pressure value(FPV) was reduced from 0.75 MPa/g to 0.06 MPa/g. The obtained pre-dispersed PY14 do not need to be strongly pulverized, which can restrain the generation of dust pollution. In addition, this preparation method can improve the colouring strength of pigment on the premise of maintaining the performances of pigment such as color light, saturation and brilliance close to the original pigment.
Using 3,3'-dichlorobenzidine hydrochloride(DCB) and o-methylacetoacetylaniline(AAOT) as raw materials, polyethylene wax(PEW) was added to the aqueous dispersion of C.I. pigment yellow 14(PY14) after the coupling reaction. The effects of adding amount of PEW, heating temperature, heating time, stirring speed, p H value, and particle size of PEW on the properties of pigment were investigated. A pre-dispersed PY14 with a diameter of 1～2 mm, uniform particle size and nuclear-shell structure and hydrophobic property was prepared under the optimal conditions of mass ratio of PY14 to PEW 1.0∶1.0, heating temperature 80 ℃, heating time 20 min, particle size of polyethylene wax 40～60 mesh, pH=7.0, stirring speed 250 r/min. The pre-dispersed PY14 was easy to separate from the water phase. For PY14, the water content of the filter cake was 79.29%, while that was only 59.85% for the pre-dispersed PY14. The filtration time of the pre-dispersed PY14 was 1/20 of that of PY14. The filter pressure value(FPV) was reduced from 0.75 MPa/g to 0.06 MPa/g. The obtained pre-dispersed PY14 do not need to be strongly pulverized, which can restrain the generation of dust pollution. In addition, this preparation method can improve the colouring strength of pigment on the premise of maintaining the performances of pigment such as color light, saturation and brilliance close to the original pigment.
引文
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[19]Qi Shujing(齐姝婧), Han Yongxi(韩勇锡), Liu Chen(刘晨), et al.TechnologyprogressandapplicationprospectofPEwax[J].Elastomerics(弹性体), 2013, 23(4):84-88.
[20]Guo Liangyu(郭良玉), Liu Dayu(刘大煜), Wu Lifeng(吴立峰), et al. Application of poly-ethylene wax in color masterbatch[J]. China Plastics(中国塑料), 1998, 22(3):33-37.
[21]RenChenglu(任成露),YeMingquan(叶明泉),HanAijun(韩爱军).PreparationofPY-17/polyethylenewax/PScompositelatex particles by mini-emulsion polymerization[J]. Chemical Industry and Engineering Progress(化工进展), 2014, 33(6):1551-1555.
[2]ZhouChunlong(周春隆).Hydrogenbondpropertiesoforganic pigmentmolecularstructureanditsapplication[J].Dyestuffsand Coloration(染料与染色), 2016, 53(1):1-9.
[3]LiZheng(李政).Thesynthesisandpropertiesofnewdisazo condenationpigments[D].Tianjin:TianjinUniversity(天津大学),2016.
[4]HelmutP,StephanF,JoachimK,etal.Improvementofdye properties of the azo pigment yellow 12 using a micromixer-based process[J].OrganicProcessResearch&Development,2005,9(2):188-192.
[5]Riddell F G, Spark R A, Fraser I F, et al. Effects of abietic acid derivativerosinationonC.I.PigmentYellow13[J].Dyesand Pigments, 1997, 35(3):191-203.
[6]Wang S, Zhou C. The effects of mixed coupling on the properties of CI pigment yellow 12[J]. Dyes and Pigments, 1998, 38(4):185-193.
[7]Xun Yujun(荀育军), Liu Younian(刘又年), Shu Wangen(舒万艮),et al. Study on preparation of microcapsule of light fast yellow G by in-situpolymerization[J].TextileAuxiliaries(印染助剂),2003,20(6):13-16.
[8]CaoL,FeiX,ZhaoH,etal.Inorganic–organichybridpigment fabricated in the preparation process of organic pigment:Preparation and characterization[J]. Dyes and Pigments, 2015, 119(3):75-83.
[9]Li G, Meng S, Feng Y. Encapsulation of modified pigment yellow110(PY110)forelectrophoreticdisplay[J].JournalofMaterials Research, 2016, 31(15):2261-2267.
[10]Zhang Lianbing(张连兵), Fang Kuanjun(房宽峻), Zhang Xia(张霞), et al. Preparation of polymer-encapsulated organic pigment with azo structure[J]. Textile Auxiliaries(印染助剂), 2011, 28(2):25-28.
[11]Yao Dandan(姚丹丹), Fu Shaohai(付少海). Preparation of ultrafine encapsulatedpigmentdispersionbyfree-radicalsediment polymerization[J].JournalofTextileResearch(纺织学报),2010,31(6):81-84.
[12]DingY,YeM,HanA,etal.Preparationandcharacterizationof encapsulatedCIpigmentyellow12viaball-millingandminiemulsionpolymerization[J].ProgressinOrganicCoatings,2018,117:69-75.
[13]ZhouChunlong(周春隆).Researchinpigmentpreparationsand pre-dispersed technology[J]. Coatings Technology and Abstracts(涂料技术与文摘), 2012, 33(9):19-24.
[14]KurodaA,MatsumotoY.Manufactureofcoloringmicroparticle dispersion used for manufacturing aqueous ink, involves mixing raw materialmonomer,surfactant,andwater,obtainingpre-emulsion,andsupplyingpre-emulsiontopigmentpre-dispersion:JP2017218546A[P]. 2017-11-14.
[15]YanXueying(严雪英).Dispersionofcolormasterbatch&single pigment dispersion[J]. Shanghai Plastics(上海塑料), 2008, 142(2):22-24.
[16]Yi Huiqin(伊辉芹). The production and application of polyethylene wax[J].ScienceandTechnologyVision(科技视界),2014,123(12):52.
[17]Ciesinska W, Liszynska B, Zielinsk J. Selected thermal properties of polyethylene waxes[J]. Journal of Thermal Analysis and Calorimetry,2016, 125(3):1439-1443.
[18]ZhangZhenliang(张振量),WangYu(王禹),XiangSuyun(项素云), et al. The performance and application of polyethylene wax[J].Plastics Science and Technology(塑料科技), 2002, 13(6):50-53.
[19]Qi Shujing(齐姝婧), Han Yongxi(韩勇锡), Liu Chen(刘晨), et al.TechnologyprogressandapplicationprospectofPEwax[J].Elastomerics(弹性体), 2013, 23(4):84-88.
[20]Guo Liangyu(郭良玉), Liu Dayu(刘大煜), Wu Lifeng(吴立峰), et al. Application of poly-ethylene wax in color masterbatch[J]. China Plastics(中国塑料), 1998, 22(3):33-37.
[21]RenChenglu(任成露),YeMingquan(叶明泉),HanAijun(韩爱军).PreparationofPY-17/polyethylenewax/PScompositelatex particles by mini-emulsion polymerization[J]. Chemical Industry and Engineering Progress(化工进展), 2014, 33(6):1551-1555.