配方应用——密封件,垫圈与O型环.doc

Seals, gaskets and o-rings 密封件，垫圈与O型环As a result of recent developments in technology,the demand for high-performance elastomers(HNBR, FKM, ACM, AEM, ECO) in automotive andindustrial applications (seals, hoses, membranes, O-rings etc.) has increased considerably. 由于近年来技术的发展，高性能弹性体(HNBR, FKM, ACM, AEM, ECO)在汽车与工业应用需求(密封件，软管，膜片与O型环等)显著增加。In order to develop efficient formulations for seals, the compound developer needs to consider several aspects such as processing, the curing processand performance in aggressive media all of which must comply with the specifications laid down by the automotive industry. 为开发密封件的有效配方，混炼胶开发者需要考虑许多方面例如加工，固化过程与耐腐蚀介质性所有这些必须符合汽车工业的特殊要求。Each seal has its own specific property profile.每个密封件都有它的特殊性能异型材。It is the job of the designer and compound developer to make the right choice from the wide range of polymers and chemicals available.设计者和混炼胶开发者可选择一系列聚合物和化学品来完成此项工作。Rhein Chemie therefore provides solutions to all kinds of problems that can ariseduring the manufacturing process.莱茵化学为加工过程提供了多种解决方案。Hydrogenated nitrile-butadiene rubber (HNBR) is commonly used in automotiveapplications involving aggressive fluids and high temperatures.氢化丁腈橡胶一般用于汽车应用包括耐腐蚀性液体与耐高温。For this high performance elastomer, Rhein Chemie provides a complex system comprising antioxidants, activators and co-agents.莱茵化学为这种高性能弹性体提供了一个复杂体系助剂，包括抗氧剂，活性剂与交联助剂。The antioxidants recommended for this polymer are Rhenofit DDA-70 and Rhenogran ZMMBI-50. 推荐使用Rhenofit DDA-70 和 Rhenogran ZMMBI-50作为抗氧剂Other suitable Rhein Chemie products used for peroxide vulcanization are Rhenofit TAC and Rhenofit TRIM. Rhenofit TAC 和Rhenofit TRIM适用于过氧化物交联体系。They are employed as activators, leading to partly increased hardness,higher moduli, outstanding resilience and good abrasion resistance of thevulcanizates.它们作为活性剂，可使硫化产品增加一定的硬度，获得更高的模数，杰出的回弹力和良好的耐磨性。To improve the processing safety and aging properties of fluorocarbon elastomers(FKM), Rhein Chemie offers Rhenofit D/A. 为改善FKM橡胶产品的加工安全性和抗老化性能，莱茵化学生产了Rhenofit D/A。With Rhenofit CF, a crosslinking activator particularly used for FKM, an optimal compression set can be achieved at higher temperatures. 使用Rhenofit CF作为交联活性剂，特别适用于FKM橡胶，可在更高的温度下得到最优的永久压缩比。Aflux 54 decreases the viscosity of the rubber compounds and gives them excellent mold removal properties.Aflux 54降低橡胶混合物的粘度，给予他们优异的脱模性能。Rhein Chemie has recently developed a system for curing acrylate rubbers (AEMand ACM).莱茵化学最近开发了丙烯酸酯固化体系。This system consists of the curing agent Rhenogran HMDC-70/AEMD,the scorch retarder Rhenogran ZDDT-50/AEMD (improves flow behavior andmold removal) and the accelerators Rhenogran XLA-60 and Rhenogran HPCA-50 (safer alternatives to DOTG). 该体系包括固化剂henogran HMDC-70/AEMD，防焦剂Rhenogran ZDDT-50/AEMD（改善流动性能和脱模性能）及硫化促进剂Rhenogran XLA-60 与Rhenogran HPCA-50（DOTG的安全替代品）An outstanding contribution to the processing of AEM and ACM is provided by the processing promoter Aflux 18, which significantly reduces the tackiness/stickiness of rubber compounds.加工助剂Aflux 18对AEM 与ACM橡胶的加工有着突出的优势，可显著降低混炼胶的粘着性。Another special crosslinking system recommended for acrylate rubbers containsRhenogran Diuron-80/ACM and Rhenogran NAST-50/ACM. 推荐用于丙烯酸酯橡胶的其他特殊交联体系还有Rhenogran Diuron-80/ACM 和Rhenogran NAST-50/ACM.A good balance between processing and physical properties can be achieved with this Diuron/alkali soap system.加工和物理性能的平衡可以利用敌草隆/碱性皂体系完成For the vulcanization of epichlorhydrin rubber (ECO), a curing system based ontriazine has replaced the standard ETU curing system due to health andenvironmental considerations. 基于健康与环安考虑，ECO橡胶的硫化体系使用三嗪替代标准的ETU固化体系。The Rhein Chemie curing package recommended for this application comprises Rhenogran TriazineTM-70/AEMD in combination with Rhenogran HPCA-50. 莱茵化学的固化配方包推荐使用TriazineTM-70/AEMD与Rhenogran HPCA-50结合.In addition to ETU/triazine-based curing systems employed for ECO/CO compounds, there are bisphenol curing systems where lead compoundsare also used. 在ECO/CO橡胶中除了可使用ETU/三嗪基础固化体系外，还可使用双酚固化体系Rhenogran Na2CO3-70/CO F is an ideal substitute for lead derivatives that is used as an acid acceptor in these bisphenol curing systems.Rhenogran Na2CO3-70/CO F是理想的替代品，可在这些双酚固化体系中作为酸受体。Aflux 25 is a special processing aid developed for ECO rubber compounds. Aflux 25是一种ECO橡胶专用的特制的加工助剂Its advantages are manifold and include good processi