1、Coatings EffectsDISPEX 帝派斯帝派斯A FAMILY OF ANIONIC DISPERSING AGENTS FOR WATERBASED SYSTEMS水水 性性 体体 系系 阴阴 离离 子子 分分 散散 剂剂 系系 列列VISCALEX 微乐斯微乐斯 & & RHEOVIS 瑞乐斯瑞乐斯THICKENERS AND RHEOLOGY MODIFIERS FOR WATER BASED SYSTEMS水水 性性 体体 系系 增增 稠稠 及及 流流 变变 改改 性性 剂剂 Coatings Effects DISPEX帝派斯帝派斯A FAMILY OF ANIONIC
2、DISPERSINGAGENTS FOR WATERBASEDSYSTEMS水性体系阴离子分散剂系列水性体系阴离子分散剂系列Mr. Chris WalkerHead Decorative Coatings Technical ServiceSegment Coating EffectsCiba Specialty Chemicals汽巴精化全球技术经理汽巴精化全球技术经理:Chris Walker先生先生 Coatings EffectsDISPEX PRODUCT RANGE DISPEX产品系列产品系列 R50 : Polycarboxylic acid. 聚丙烯酸 A40 : Ammon
3、ium polycarboxylic acid. 聚丙烯酸氨盐 N40 : Sodium polycarboxylic acid. 聚丙烯酸钠盐 N100 : Sodium polycarboxylic acid. 聚丙烯酸钠盐 GA40 : Ammonium polycarboxylic acid/ Carboxylic ester. 聚丙烯酸氨盐/羧酸脂 G40 : Sodium polycarboxylic acid/ Carboxylic ester. 聚丙烯酸钠盐/羧酸脂 HDN : Sodium polycarboxylic acid/ Carboxylic ester. 聚丙烯酸
4、酸钠盐/羧酸脂Coatings EffectsTYPICAL PROPERTIES OF DISPEX DISPERSINGAGENTS DISPEX分散剂的基本特性分散剂的基本特性 Dispex dispersing agents are low molecular weight solution polymers with a molecular weight range of 3500 20000 Dispex分散剂是低分子量的可溶性聚合物,其分子量分布为350020000 Polymer composition range is 100% Carboxylic acids to 70%
5、 Carboxylic acids with Carboxylic esters to decrease the solubility of the dispersant in water 聚合物组成中羧酸为100%到70%.其余为羧酸脂用以降低可溶性. pH of the dispersing agents are typically pH 8.0 分散剂的PH值一般为8.0 Dispex R50 is supplied at pH 3 Dispex R50的PH值是3 The appearance of the dispersing agents are clear yellow liqu
6、ids 分散剂是清澈的黄色液体 Dispex N100 is supplied in bead form Dispex N100 是粒状固体Coatings EffectsTYPICAL PROPERTIES OF DISPEX DISPERSINGAGENTS DISPEX分散剂的基本特性分散剂的基本特性Dispex G r a d ePHYSICAL PROPERPTY物理性能R50A40N40N100GA40G40HDNUN-neutralised 未中和Ammonium salt 氨盐Sodium salt 钠盐Active content % 固含504040100404030Liq
7、uid/Solid 液体/固体LLLSLLLHomopolyer 均聚物Copolyer 共聚物Coatings EffectsTHE STABILISATION MECHANISM OF INORGANIC POWDERS USING ANIONIC DISPERSANTS阴离子分散剂的分散机理阴离子分散剂的分散机理 聚合物链钠盐离子化颜料颗粒吸引负电荷聚合物链吸引中和颜料颗粒的正电荷Coatings EffectsDETERMINING THE ADDITION LEVEL OF A DISPERSANT FOR INORGANIC POWDERS无机颜料分散剂用量评估无机颜料分散剂用量评
8、估 The correct dosage level is found by incremental additions of the dispersant to a powder slurry. The slurry is efficiently mixed after each addition and the viscosity is measured, using for example a Brookfield RVT viscometer. 准确用量的确定:向颜料浆逐渐增加分散剂,每次加入后充分搅拌.并测量浆料粘度(Brookfield RVT粘度计) Viscosity vs.
9、% dry dispersant/dry pigment is plotted. The viscosity minima is the “Optimum Viscosity”, the dispersant dosage level at this viscosity is the called “Optimum Dosage”. 粘度和分散剂干重/干粉重量比是有关的.粘度达到最低的”理想粘度”,时此时分散剂的添加量就是”理想用量” Typical dosage levels of Dispex grades are 0.05-0.5% dry dispersant/dry powder.
10、一般分散剂的添加量是0.050.5%分散剂(干重)/干粉重量比Coatings EffectsDISPERSION OF A 78% SOLIDS CONTENT CALCIUM CARBONATE SLURRY. 78%固含的碳酸钙浆的粘度固含的碳酸钙浆的粘度/分散剂用量曲线分散剂用量曲线 分散剂(干重)/干粉重量比粘度Coatings EffectsKRONOS 2190 (TiO2) 75% solids content 75%钛白浆粘度钛白浆粘度/分散剂用量曲线分散剂用量曲线 粘粘度度分散剂分散剂( (干重干重)/)/干粉重量比干粉重量比Coatings EffectsCalcium
11、carbonate 82% solids content 82%碳酸钙碳酸钙分散剂干重分散剂干重/ /干粉重量比干粉重量比粘粘度度Coatings EffectsEFFECT OF SYSTEM pH ON DISPERSION PERFORMANCE PH值对分散的影响值对分散的影响理想用量理想用量粘粘度度Coatings Effects Dispersant evaluation in a 40%PVCwaterbased emulsion paint system分散剂效力的评估分散剂效力的评估40%PVC的乳胶漆的乳胶漆Coatings EffectsFormulation detai
12、ls 配方配方PVC40%Solids content 固含50%pH8.5Viscosity Bfd RVT 20 rpm 布氏粘度 7500 mPa.sProduct 组分Level ( by weight) 添加量 ( 按重量 )Water 水29.7Defoamer 消泡剂0.5Biocide 杀菌剂0.2Dispersant 分散剂X (1.5 times optimum) (1.5倍理想用量)Pigment TiO2 钛白15.2Calcium carbonate 碳酸钙10.3Dolomite 白云石9.8Binder Sty/Ac 填料32.5Co-solvent 助溶剂1.0
13、pH adjustor PH调节To pH 8.5HASE Thickener 增稠剂0.7Total 合计100 ( +）Coatings EffectsDispersion of TiO2/Calcium Carbonate/Dolomiteblend at 75% solids content slurry75%的钛白的钛白/碳酸钙碳酸钙/白云石浆白云石浆分散剂分散剂( (干重干重) ) / /干粉重量比干粉重量比Coatings EffectsCalculated addition levels 添加用量计算添加用量计算Product 产品1.5 X Optimum dry dosag
14、e1.5 倍理想用量Dispex N400.40Kg/100Kg PowdersDispex A400.48Kg/100Kg PowdersDispex G400.56Kg/100Kg PowdersDispex HDN0.68Kg/100Kg PowdersSTPP0.54Kg/100Kg PowdersCoatings EffectsWet scrub resistance in a 40%PVC waterbased interior emulsion paint system 40%PVC内墙乳胶漆的抗擦洗性内墙乳胶漆的抗擦洗性Coatings Effects60 Gloss in a
15、 40%PVC waterbased emulsion paint system 40%PVC乳胶漆的乳胶漆的60度光泽度光泽Coatings Effects40% PVC ANTI-CORROSIVE PAINT SYSTEM 40%PVC防腐漆配方防腐漆配方Component 组分 Level ( pbw )Water 水Propylene Glycol 丙二醇Dispersant 分散剂Titanium Dioxide 二氧化钛Calcium Carbonate 碳酸钙Aluminium triphosphate 三磷酸铝Acrylic Binder 丙烯酸树脂Coalescent 成膜
16、助剂Thickener 增稠剂pH Buffer PH缓冲剂25.01.51.5x optimum dosage 1.5倍理想用量14.015.56.036.00.71.3To pH 8.0Coatings EffectsDISPERSANTS DOSAGES REQUIRED FOR THEANTI-CORROSIVE PAINT PIGMENT SYSTEM防腐漆的分散剂用量防腐漆的分散剂用量Product 产品Addition Level (%dry/dry)(1.5x Optimum dosage)添加量 ( 固含% ) ( 1.5倍理想用量 )Dispex N400.12Dispex
17、 G400.15Dispex HDN0.19Coatings EffectsSTABILITY RESULTS 稳定性稳定性 Dispex HDN recommended for reactive pigment systems !Dispex HDN推荐用于含有反应性颜料的体系推荐用于含有反应性颜料的体系!Product 产品7 Day Paint Stability 7天稳定性Dispex N40Flocculated ( 1 day) 絮凝 ( 一天 )Dispex G40Gelled 胶凝Dispex HDNStable 稳定Coatings EffectsDISPERSANT/GLY
18、COL COMPATIBILITY METHODOLOGY 分散剂分散剂/二元醇的相容性二元醇的相容性Glycol Compatibility 二元醇相容性二元醇相容性Component 组分组分 p.b.w Glycols tested 二元醇测试二元醇测试Dispersant (20%solids) - 50g Ethylene 乙二醇 分散剂 (20%固含) Glycol 二元醇 - 50g Propylene 丙二醇TOTAL 合计 100g Butylene 丁二醇 Hexylene 己二醇Methodology 检测方法检测方法Dispersant solution added t
19、o the glycol. 分散剂溶液添加到二元醇中The mixture is shaken vigorously for 3 minutes. 混合液摇动3分钟Dispersant stability is assessed after 10 minutes. 10分钟后测稳定性Coatings EffectsCOMPARATIVE GLYCOL COMPATIBILITY OFDISPERSING AGENTS 分散剂的二元醇相容性比较分散剂的二元醇相容性比较Rating 注意注意1. Homogenous solution 纯溶液2. Phase separation 相位分离3. m
20、ixture is partially gelatinous 混合液部分凝胶Dispersant分散剂Ethylene glycol乙二醇Propylene glycol丙二醇Butylene glycol丁二醇Hexylene glycol己二醇Dispex N401232Dispex G401122Dispex HDN1122Coatings EffectsDISPERSANT FOAMING PROPERTIESMETHODOLOGY 分散剂起泡性测试方法分散剂起泡性测试方法Methodology 方法方法Pour 40 ml of dispersant solution (pre-di
21、luted to 20% solidscontent) into a stoppered measuring cylinder (100ml).40毫升的分散剂溶液(冲淡到20%固含)倒入100毫升的量筒中Reciprocate the cylinder for 5 cycles.来回晃动量筒5次Volume of foam is measured after 10 seconds.10秒后测泡沫的高度Coatings EffectsDISPERSANT FOAMING PROPERTIESMETHODOLOGY 分散剂起泡性测试方法分散剂起泡性测试方法Product 产品Foam heigh
22、t(mls)泡沫高度 (毫升)Product 产品Foam height(mls)泡沫高度 (毫升)Dispex N402Dispex A404Dispex G4022Dispex GA4020Dispex HDN4Coatings EffectsReasons for choosing a Homopolymer 选择均聚物型分散剂的好处选择均聚物型分散剂的好处Dispex N40, Dispex A40, Dispex R50, Dispex N100 Advantages: 好处 Generally lower cost than copolymer product 比共聚物的成本低 G
23、enerally more efficient than copolymer product 比共聚物有效 Generally less foam 泡沫少 Best stabilisation for liquid system! 液体稳定性最好液体稳定性最好!Coatings EffectsReasons for choosing a copolymer 选择共聚物型分散剂的好处选择共聚物型分散剂的好处Dispex G40, Dispex GA40, Dispex HDN Advantage: 好处 Better for Gloss ( better glycol compatiblity
24、) 光泽好(二元醇相容性好) Better water/scrub resistance ( more hydrophobic ) 耐水/擦洗性好(憎水性好) Better color acceptance ( more tolerant to organic pigment colorants ) 颜料相溶性好 ( 特别是有机颜料 ) Best stability with reactive pigments ( Dispex HDN ) 最适合于反应性颜料 Best Dry film properties! 最好的干膜性能最好的干膜性能!Coatings Effects DISPEX帝派斯帝派斯A FAMILY OF ANIONIC DISPERSINGAGENTS FOR WATERBASEDSYSTEMS水性体系阴离子分散剂系列水性体系阴离子分散剂系列Mr. Chris WalkerHead Decorative Coatings Technical ServiceSegment Coating EffectsCiba Specialty Chemicals汽巴精化全球技术经理汽巴精化全球技术经理:Chris Walker先生先生
