DIC.PPS EC-50A PPS:
Fuel Cell End PlatesInjection-molded end plates made from ’s polyphenylene sulfide (PPS) can provide significant cost and weight savings in proton exchange membrane (PEM) fuel cells. Design changes integrating the end plate and the adjacent insulating plate may reduce cost and weight as much as 90% compared to current fuel cell prototypes employing metal.
Ferrule
The 8670A61 grade has outstanding flow properties, making it ideal for fine-structured design components such as plug connectors, known as ferrules. Other essential properties for this application are very low water absorption, low creep at high temperatures, good dimensional stability and even shrinkage in both flow and transverse directions. Vectra liquid crystal polymer is also used in fibre optics – particularly for connectors. The crucial factors here are Vectra’s good mechanical properties, even in thin wall sections, and the extreme precision with which ferrules can be made. Ferrules can be injection moulded to incorporate holes to carry the 125 μm thick glass fibres to tolerances of 1-2 μm. These ferrules use Vectra grade A460, specially developed for such applications.has been working closely with systems and cable manufacturers to develop a number of special (PPS) grades tailored specifically to the requirements of fibre optic technology.
PPS燃料电池的端板
由于它具有的属性,以满足燃料电池环境中的许多要求,玻璃纤维增强聚苯硫醚是一个出色的候选人端板材料。它的模具以及,复制优良特性,展品很少翘曲,可以很容易地承受压缩堆栈所需的负荷。它具有优良的尺寸稳定性,并保留其机械性能远远高于80°C(176°F)的质子交换膜燃料电池的操作温度。
它具有优良的*性离子水,氢,氧,丙烷,天然气和其他碳氢燃料。
的开发工作表明,结合一体注塑成型板和绝缘组件可以减少板的成本,每个堆叠美元之间,100美元和120,同时也减少了至少10磅(4.95公斤)栈重量。除此之外,PPS是一个很好的绝缘体,具有低的热膨胀,吸收少量的水,是固有的阻燃。重要的是,PPS具有与它接触流体的电导率的影响不大。注塑月底从公司的聚苯板聚苯硫醚(PPS)在质子交换膜(PEM)燃料电池可提供显着的成本和重量节省。整合终板和相邻的绝缘板的设计变更可能减少高达90%相比,目前的燃料电池原型,采用金属的成本和重量。
质子交换膜燃料电池组件,包含了约200系列连接细胞的堆栈。堆栈是通过端板螺栓连接到一起保存在栈双极板和压缩它们之间的垫片一起举行。干预绝缘板无聊歧管喂氢燃料,空气和冷却水氧化堆栈,以及删除单元操作过程中产生的水。即使与自动化加工,两套板价格从300美元到500美元。
Aerospace Wing and Leading Edge Nose
This is done by extruding the PPS into film, combining it with chosen fibrous reinforcements and forming the final part under high pressure at 300°C (572°F). Individual parts are then fabricated from the pressed composites and welded together in an autoclave to form the final component as one piece.Fiber-reinforced composites based on ’s high performance polyphenylene sulfide (PPS) make an important contribution to weight reduction of the Airbus A340 and A380.This helps lower fuel consumption and increase range and passenger capacity.PPS already had all the basic characteristics for use in aircraft construction – resistance to high temperatures and aggressive chemicals, hardness, impact strength, dimensional stability and inherent flame-retardancy. The trick was to create suitable structural elements embodying these attributes.
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