Evonik Degussa 特种炭黑介绍

Evonik Degussa Speciality Carbon Blacksfor MRG Industry德固德固赛赛用于橡用于橡胶胶制品的特殊碳黑J. C. Nian & Dr. W. Wolff 粘志成先生& & 伍福伍福博士Applied Technology Rubber Reinforcement 橡胶补强应胶补强应用技用技用技术术Content 内容Introduction介绍Purex®grades and Durex®0 for extrusion applications 挤出制品的Purex®碳黑和Durex®0用于挤应用于Carbon blacks for molding applications应用于模制成型的碳黑Handling properties操作性能Summary总结MRG Industry (= Mechanical Rubber Goods Industry 工业用橡用橡胶胶制品)Printing Rolls 印刷印刷滚滚筒Windshield wipers 雨刷Profiles 挤出制品Hoses 软管Molded goods模制物品Introduction -The MRG Industry 简介-橡胶制品工制品工业业Different application fields different technical requirements 不同的不同的应应用领域 不同的技不同的技术术需求Large number of recipes 大量的配方•large number of rubber grades (mechanical resistance, oil resistance, heat ageing...)多样的橡的橡胶胶等级(机械抗力机械抗力、、耐油耐油、、热老化…等)。

•different reinforcing/filling systems (soft carbon blacks, clays, silica...),不同的不同的补强补强/ 填充系填充系统统(软质软质碳黑碳黑碳黑、、黏土黏土、、白碳黑…等)。

•curing system depends on requirements, processing or type of polymer used.硫化系硫化系统统取决于制品的需求于制品的需求、、制程或使用之聚合物的制程或使用之聚合物的类类型。

Small-sized internal mixers(200 litres maximum) 小型的混小型的混练练机(最大200 公升)Different production processes 不同的生不同的生产产程序•extrusion with different vulcanisation oven types (micro-waves, salt bath, steam..)使用不同使用不同类类型的硫化型的硫化炉进炉进炉进行行挤出成型(微波微波、、盐浴、蒸汽…等)•moulding by injection, compression or transfer,使用射出成型使用射出成型、、模压成型或成型或传递传递传递模模来进来进行模制行模制行模制。

•Calendering 压延简介-橡胶制品工制品工业业Requirements 需求•Dispersion分散性•Surface smoothness 平整表面•Microwave heating 微波加微波加热热•ECC / ECD 电化降解和化降解和电电化腐化腐蚀蚀•Injection behaviour 射出性能•Food contact 食物接触•Dynamic properties 动态动态特性特性•Reduction in Costs 降低成本简介-橡胶制品工制品工业业Soft Carbon Blacks portfolio 软质软质碳黑碳黑碳黑组组合CTAB, m²/gDurex 0Purex HS 25Purex HS 45Purex LS 30100C O A N , m l /100gMT N 990Purex LS 35Purex HS 22N 772N 660N 683N 650N 539N 550Purex LS 18Purex HS 20Purex HS 55and Trends挤出应用–需求和需求和趋势趋势Car body sealing systems 汽车车车车身密封系身密封系身密封系统统•avoid surface defects on extruded profiles避免避免挤挤出制品表面缺出制品表面缺点点•improve sensorial perception of extruded profiles (gloss, soft touch, smell..)改善改善挤挤出制品的感出制品的感觉觉(色泽、触感触感、、气味…等)•good rate of temperature increase via UHF absorption for extruded compounds挤出胶料藉由吸收高周波而有好的料藉由吸收高周波而有好的温温度上升速率•productivity and high throughput 高的生高的生产产力Surface defects on profiles 挤出制品的表面缺陷•Surface defects cause scrap and loss of productivity.表面缺陷表面缺陷导导致废料同料同时时造成生造成生产产力降低力降低。

•Origin of the surface defects: non-dispersed carbon black pellets, grit (rust, refractory material) or other sources ?表面缺陷的原因表面缺陷的原因：：未分散的碳黑未分散的碳黑颗颗粒、杂质(铁锈铁锈、、耐火材料)或其它或其它来来源？Applications应用于用于挤挤出的碳黑Properties 特性Purex ®carbon blacks and lampblack Durex ®0/35 are high purity carbon blacksPurex ®碳黑和碳黑和灯灯黑Durex ®0/35 为高纯净纯净的碳黑的碳黑的碳黑。

Low surface HS Carbon Blacks allow improvement of processing behaviour低表面低表面积积高结构的碳黑可改善加工性能构的碳黑可改善加工性能。

Durex ®0 specific properties enable outstanding behaviour of extruded compounds. Special color and shine.Durex ®0 之特性能之特性能赋赋予挤出胶料优异的性能料优异的性能。

特殊的特殊的颜颜色和光色和光泽泽。

Benefits 优点Less scraps and higher troughputs allowing reduction in costs较少的少的废废料以及料以及较较高的生高的生产产力能降低成本力能降低成本。

Durex ®0 solves processing problems ranking from cellular compounds to high shore hardness extrudates Durex ®0 解决了发泡橡泡橡胶胶到高硬度到高硬度挤挤出制品的加工出制品的加工问题问题问题。

Grit or sieve residue determination according to ASTM D 1514 test method 杂质杂质或或筛余物根据ASTM D 1514 试验试验方法方法100 g carbon black sample100 g 碳黑碳黑样样品36 ppm (mg/kg) residue at a 45 µsieve经45µ筛网筛除后除后，，有36 ppm 的筛余物Requirements for Carbon Blacks 对碳黑的需求Before AfterBlacks挤出应用–Purex ®碳黑Purex ®Carbon Blacks= Sieve residue < 50 ppm (mg/kg) at 45µm or 325 Mesh Sieve according toASTM D 1514.Purex ®碳黑= 根据ASTM D 1514 标准试验试验方法方法方法，，在经过45 µm 或325 网目的网目的筛筛网筛除后之除后之筛筛余物小于50 ppmCTAB, m²/gDurex 0Purex HS 25Purex HS 45Purex LS 3020406080100C O A N , m l /100gMT N 990Purex LS 35Purex HS 22N 772N 660N 683N 650N 539N 550Purex LS 18Purex HS 20Purex HS 55Lamp Black Process灯法碳黑制程Furnace Black Process炉法碳黑制程Lampblack Durex®0/35 and Purex®Carbon Blacks are produced ondifferent reactor types.灯黑Durex®0/35 和Purex®碳黑是由不同的反碳黑是由不同的反应应方法所生方法所生产产Durex®0 and Purex®Carbon BlacksDurex®0 和Purex®碳黑Primary Particle Size Distribution 基本粒基本粒径径分布-505101520253035020406080100120140160Primary Particle Diameter [nm]F r e q u e n c y [%]Furnace blackLamp blackLamp black Durex ®0 has a broad primary particle size distribution.灯黑Durex ®0 有较寛较寛的基本粒的基本粒的基本粒径径分布Lamp black Durex ®0 has a broad primary particle size distribution.灯黑Durex ®0 有较寛较寛的基本粒的基本粒的基本粒径径分布Furnace Black 炉法碳黑Lamp Black 灯黑PropertiesDurex ®0 和Purex ®碳黑的特性BlackTypeSieve residue Iodinenumber[mg/g]CTAB number [m 2/g]OAN[ml/100g]COAN [ml/100g]at 325 mesh [ppm]Purex HS 45Furnace Black 434212186< 20Purex HS 25Furnace Black 292912483< 20Durex 0Lamp Black2518´(120)64< 10Surface AreaStructureSelection of high structure (HS) Carbon Blacks for extrusion applications.选用高用高结结构碳黑于构碳黑于挤挤出应用低Advantages of Low Impurity Carbon Black杂质杂质碳碳烟之好之好处处•Excellent surface appearance of the extrusion (smooth)极佳之极佳之挤挤出物表面外出物表面外观观(很平整很平整))•Less of extrusion defects (pinhole 、extrusion gap)较少之少之挤挤出缺出缺点点(针孔、挤出缺口出缺口))•Not damaged the mold or die较不易不易伤伤害模具或口害模具或口型型•Reduce the replacement filter of extrusion减少挤出滤网之更网之更换换ASTM Type Purex BlacksASTM 等级的Pruex 碳黑Purex HS 45N 550 type (FEF) of carbon black with low grit content 低杂质杂质的的N 550 等级的碳黑Purex HS 25An alternative to N 550 in extruded rubber goods in order to reduce mixing time, enabling higher cb volume and getting better surface aspect为了减少混合少混合时间时间时间、、更高的碳黑添加量并且更高的碳黑添加量并且获获得更好的外得更好的外观观的橡胶挤胶挤出制品出制品出制品，，是N550 外的另一种外的另一种选择选择选择。