聚酰亚胺

A series of fluorenyl cardo polyimides were prepared by "one step" polycondensation of these cardo diamines with the dianhydrides4,4\'-oxydiphthalic anhydride(ODPA,3,3\'4,4\'-benzophenonetetracarboxylic dianhydride, 3,3\',4,4\'-biphenyl tetracarboylic dianhydrideand pyromellitic dianhydriderespectively.

由五种Cardo型二胺单体分别与3，3\'，4，4\'-二苯醚四酸二酐、3，3\'，4，4\'-二苯甲酮四酸二酐、3，3\'，4，4\'-联苯四酸二酐和均苯四甲酸二酐采用一步法溶液聚合制备了一系列芴基Cardo型可溶性聚酰亚胺。

In this paper,a kind of flexible cantilever beam electromagnetic optical switch which is used in the wave length channel selection system was designed and fabricated. It is manufactured by MOEMS technology and composed of a plane circular coil in flexible polyimide cantilever beam, cylindrical permanent magnet,substrate and reflector prism with two reflecting surfaces.

设计并制作了一种用于波长信道选择系统的新型柔性悬臂梁电磁驱动光开关，该光开关采用MOEMS技术制作，由带有平面螺旋形线圈的聚酰亚胺悬臂梁、圆柱形永磁体、基座以及双面反射棱镜组成。

The polyimide coition gas membrane can effectively get rid of acid gas of H2S by changing craftwork condition.

结论］聚酰亚胺致密气体膜通过改变工艺条件可有效脱除H2S酸气。

The requirement of matrix resin for the high frequency and high performance copper clad laminate was introduced and polyphenylene ether resin, cyanate resin and polyimide resin were also discussed in detail.

介绍了高频高性能覆铜板对基材的性能要求，详细讨论了聚苯醚树脂、氰酸酯树脂及聚酰亚胺树脂的特性，并简要介绍了各种树脂基覆铜板的应用情况。

The company's main business for the enamelled round aluminum wire, copper clad aluminum wire and bare Wire manufacturing and sales, led 220 Products for polyester composite polyimide enamelled round aluminum wire, copper clad aluminum wire and bare wire, etc. widely used in: Microwave oven transformers, three-phase power transformers, low voltage control transformer, dual hot washing machine motor, rectifier, large screen color TV degaussing coil, kitchen electrical, magnetic ore sorting equipment, automobile spare parts and wire and cable and so on.

公司的主营业务为漆包圆铝线、铜包铝线和裸铝丝的制造和销售，主导产品为220级聚脂复合聚酰亚胺漆包圆铝线、铜包铝线和裸铝线等，广泛应用于：微波炉变压器、三相电力变压器、低压控制变压器、洗衣机双热电机、整流器、大屏幕彩电消磁线圈、厨房电机、磁矿选设备、汽车备件及电线电缆等。

Methods : Unilateralism cloth irrigated in advance made by enlace method ,Unilateralism carbon fiber CF polyimide PI composite composed by heat press molding .

用缠绕法制得单向预浸布料，热压成型制作单向聚酰亚胺/碳纤维复合层压板复合材料，并测试其弯曲强度，弹性模量。

The variety of group position in polyimide molecular chains had little influence on the thermal stability and antioxidation property.

聚酰亚胺分子链中基团位置的变化对热稳定性及抗热氧化性能的影响较小。

DongGuan WingOn Adhesive-Product Factory produces the PE protection film , BOPP protection film , PET heat protects film and Polyimide Film , PET , insulate the paper reunite the tape, Mala Adhesive Tape, the industry double- side tape, thin film beginning double- stick tape and oil water gum glues an oxygen resin AB gum.

东莞市永安胶粘制品厂生产PE保护膜、BOPP保护膜、PET高温保护膜、压纹保护膜、聚酰亚胺胶带，聚酯薄膜，绝缘纸复合胶带，玛拉胶带，工业双面胶，薄膜开关双面胶及油性水性胶粘剂、环氧树脂AB胶。

For protecting the signal transmitting fiber in downhole high temperature and pressure environment, an epoxy-free package method based on hermetical bonding of quartz ferrule and fiber is used and Polyimide coated fiber and stainless steel protecting tubing are adopted.

我们采用金属—石英管的机械压力密封和石英管—光纤的激光热熔无胶密封结构，保证了传感器导压腔和耐高温光纤不锈钢保护套管的可靠密封，提高了整个系统的可靠性和使用寿命；采用不锈钢套管保护聚酰亚胺材料涂敷的耐高温光纤传输传感信号，解决了耐高温和保护光纤的问题。

These are widely used in: micro-wave oven transformer, three-phase electric power, low-voltage control transformer, machine tool control transformer, neon light transformer, rectifier in lamps, electric soldering machine, washer double thermoelectricity machine, rectifier, wide screen color degaussing turn, kitchen electric machine, magnetic mine choosing facility, auto spare part, motor car spare parts, electric motor car, and wire and cable, fan jar, inverted power source, UPS power source, water pump electric machine, air-compress electric machine, disk wire, and so on.

公司的主营业务为漆包圆铝线，漆包圆铜线，铜包铝线和裸铝丝的制造和销售，主导产品为220级聚脂复合聚酰亚胺漆包圆铝线、铜包铝线和裸铝线等，广泛应用于：微波炉变压器、三相电力变压器、低压控制变压器、洗衣机双热电机、整流器、大屏幕彩电消磁线圈、厨房电机、磁矿选设备、汽车备件及电线电缆等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。