颜料分散对人造有机彩砂应用的影响
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摘要
将WEP(水性环氧树脂)胶粘剂与铁红颜料、石英砂及固化剂等混合均匀、干燥后,制得人造有机彩砂。采用不同浓度和类型的分散剂[如聚乙二醇(PEG)、十六烷基三甲基溴化铵(CTMAB)和油酸钠(SO)等]对颜料进行改性,以提高人造有机彩砂的耐搅拌性能。研究结果表明:当SO浓度为1.5 mmol/L时,颜料表面的Zeta电位绝对值(49.0 m V)相对最大、静电排斥作用相对最强且颜料的分散稳定性相对最佳;此时,该有机彩砂表面颜料颗粒的团聚体减小且分散均匀,其在搅拌后的颜色较为鲜艳,应用性能得到提高。
The artificial organic colored sand was prepared by evenly mixing and drying among iron oxide red pigment,quartz sand and curing agent with WEP(waterborne epoxy resin) adhesive.The stir resistance of artificial organic colored sand was improved when the pigment was modified by different concentrations and types dispersants[such as polyglycol(PEG),hexadecyl trimethyl ammonium bromide(CTMAB) and sodium oleate(SO)].The research results showed that the pigment surface had the relatively maximum Zeta potential absolute value(49.0 mV),the relatively strongest electrostatic repulsion,and the relatively optimal dispersion stability when the concentration of SO was 1.5 mmol/L.At present,the organic colored sand surface could be evenly dispersed because the pigment agglomerates on its surface were reduced,so it had the more bright color after stir,and its application properties could be improved.
The artificial organic colored sand was prepared by evenly mixing and drying among iron oxide red pigment,quartz sand and curing agent with WEP(waterborne epoxy resin) adhesive.The stir resistance of artificial organic colored sand was improved when the pigment was modified by different concentrations and types dispersants[such as polyglycol(PEG),hexadecyl trimethyl ammonium bromide(CTMAB) and sodium oleate(SO)].The research results showed that the pigment surface had the relatively maximum Zeta potential absolute value(49.0 mV),the relatively strongest electrostatic repulsion,and the relatively optimal dispersion stability when the concentration of SO was 1.5 mmol/L.At present,the organic colored sand surface could be evenly dispersed because the pigment agglomerates on its surface were reduced,so it had the more bright color after stir,and its application properties could be improved.
引文
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[14]庞学满,徐明霞,梁辉,等.以聚硅氧烷乳液/聚丙烯酸铵为复合分散剂制备高性能氮化硅料浆[J].硅酸盐学报,2008,36(7):969-972.
[15]郑水林,张清辉,李杨.超细氧化铁红颜料的表面改性研究[J].矿冶,2003,12(2):69-73.
[16]李登好,郭露村.超细氧化铝水悬浮液分散稳定性研究[J].硅酸盐通报,2005,24(1):35-40.
[17]杨辉,张玲洁,郭兴忠,等.微米碳化硅晶须在水介质中的分散行为[J].无机化学学报,2012,28(1):153-158.
[2]UZUN M,GOVARTHANAM K K,RAJENDRAN S,et al.Interaction of a non-aqueous solvent system on bamboo,cotton,polyester and their blends:The effect on abrasive wear resistance[J].Wear,2015,322/323:10-16.
[3]WANG H B,SONG X Y,WEI C B,et al.Abrasion resistance enhancement of ultrafine-structured WC-Co coating fabricated by using in situ synthesized composite powder[J].Journal of Materials Science and Technology,2013,29(11):1067-1073.
[4]张福成,罗海辉,ROBERTS S G,等.断裂方式对氧化铝基复合陶瓷耐磨性的影响[J].无机材料学报,2007,22(3):493-498.
[5]杨振忠,赵得禄,许元泽,等.环氧树脂相反转乳化过程相态发展研究[J].高等学校化学学报,1999,20(5):809-813.
[6]赵立英,马会茹,孙志刚,等.非离子型自乳化水性环氧树脂的制备与性能[J].高分子材料科学与工程,2010,26(10):19-22.
[7]张雪芳,高俊刚,吕红秋.相反转法制备水性环氧树脂及其固化动力学[J].高分子材料科学与工程,2012,28(7):128-131.
[8]陈俊芳,李素芳,从洪云,等.水性环氧乳液的研制及性能研究[J].涂料工业,2011,41(8):46-49.
[9]李晴,朱殿奎,沈志明,等.水性环氧树脂乳液的制备及其应用[J].涂料工业,2015,45(3):41-45.
[10]刘兵,彭超群,王日初,等.Al2O3悬浮液分散稳定性的影响因素[J].中国有色金属学报,2012,22(10):2833-2838.
[11]WANG Z H,LAM A,ACOSTA E.Suspensions of iron oxide nanoparticles stabilized by anionic surfactants[J].Journal of Surfactants and Detergents,2013,16(3):397-407.
[12]杨喜云,龚竹青.分散剂对Fe3O4表面化学特性的影响[J].中南大学学报:自然科学版,2005,36(2):243-247.
[13]张楠,刘家祥,吴妲.分散剂对ITO前驱物浆料稳定性的影响[J].稀有金属材料与工程,2009,38(6):1033-1037.
[14]庞学满,徐明霞,梁辉,等.以聚硅氧烷乳液/聚丙烯酸铵为复合分散剂制备高性能氮化硅料浆[J].硅酸盐学报,2008,36(7):969-972.
[15]郑水林,张清辉,李杨.超细氧化铁红颜料的表面改性研究[J].矿冶,2003,12(2):69-73.
[16]李登好,郭露村.超细氧化铝水悬浮液分散稳定性研究[J].硅酸盐通报,2005,24(1):35-40.
[17]杨辉,张玲洁,郭兴忠,等.微米碳化硅晶须在水介质中的分散行为[J].无机化学学报,2012,28(1):153-158.