polytetrafluoroethylene

Accelerated fatigue test in vitro of expanded polytetrafluoroethylene artificial heart valve

膨体聚四氟乙烯人工心脏瓣膜体外加速疲劳的实验研究

【 objective 】 to summarize the method and clinical result of repairing traumatic peripheral arterial defect by polytetrafluoroethylene ( eptfe) blood vessel graft, discuss the way of preventing the infection of vessel anastomosis.

【目的】总结应用膨胀泡沫聚四氟乙烯（ePTFE）血管移植修复创伤性四肢干动脉缺损的方法和疗效，探讨血管吻合口感染的预防途径。

objective to determine which graft material is the better choice for endovascular stent graft by comparing the leakage and resistance to traction of stents covered internally and externally with either dacron ( d), polytetrafluoroethylene ( ptfe), or expanded ptfe ( eptfe).

目的通过比较涤纶（D）、聚四氟乙烯（PTFE）及可膨胀性聚四氟乙烯（ePTFE）覆盖内支架不同组配的漏出量及结合点的阻力，确定带膜血管内支架的最佳材料。

Blends of poly ( phthalazinone ether sulfone ketone ) ( PPESK ) and polytetrafluoroethylene ( PTFE ) were prepared via solution frictiontester.

采用溶液共混法制备了不同质量比的新型含二氮杂萘酮结构聚芳醚砜酮 ( PPESK ) 与聚四氟乙烯 ( PTFE ) 共混物.

The performance of Polytetrafluoroethylene ( PTFE ) is good and is applied intensively on sealing material at present.

聚四氟乙烯 ( PTFE ) 性能优良,是目前广泛应用的密封材料.

Reaction products are studied by UV spectrum, gas chromatograph and polytetrafluoroethylene micro porous permeation, and Br-3 and N 2 have been affirmed. The reaction formula can be infered.

用紫外光谱、气相色谱和疏水微孔渗透法研究了该反应产物，确认反应产物为Br－3、N2，并推定了反应方程式。

As an improved feature, V cup packings of rubber with fabric and back-up rings of polytetrafluoroethylene are adopted, The total contact area between the sealing lips and the bushing is only 25 to 33 percent of the original packing-bushing contact area.

改进后的密封结构，采用V形橡胶夹布盘根和聚四氟乙烯扶正板，盘根唇部与衬套的接触面积仅为原来的25～33%，减少了发热量。扶正板能自润滑。

Sorts of fluororesins and the discovery of polytetrafluoroethylene are introduced.

简介氟树脂的种类和聚四氟乙烯的发现经过.

Comparative Study of Tribological Behavior of Carbon Fiber Reinforced Polytetrafluoroethylene Composites at Dry-and Water-Lubricated Sliding against Stainless Steel

炭纤维增强聚四氟乙烯复合材料在干摩擦和水润滑条件下的摩擦学行为对比研究

A flammable gaseous fluorocarbon used in making plastics ( polytetrafluoroethylene resins).

一种易燃的气态碳氟化合物，用于制塑料（聚四氟乙烯树脂）。

Studies on mechanical properties of polytetrafluoroethylene ( ptfe) big bore diameter sifter

大孔径聚四氟乙烯筛板的力学性能研究

Copper clad laminates ( CCLs) with high performance based on modified polytetrafluoroethylene ( PTFE) were prepared by using blended tetrafluoroethylene and hexafluoropopylene ( FEP) as the modification resin.

利用聚全氟乙丙烯（FEP）共混改性聚四氟乙烯（PTFE），制备了高性能聚四氟乙烯覆铜板。

The chemical and physical characteristics and applications of polytetrafluoroethylene ( PTFE ) fiber are introduced.

介绍了聚四氟乙烯 ( PTFE ) 的化学、物理等特性及其应用.

Friction and Wear Behavior of Polytetrafluoroethylene Fabric Composite Spherical Bearing in Swaying

聚四氟乙烯自润滑编织复合材料关节轴承的摆动摩擦磨损性能研究

The seat material shall be one of the following materials: ethylene-propylene-diene monomer or fluoroelastomer with polytetrafluoroethylene bearing support at the top and bottom.

阀座材料应该是下列材料之一：乙烯-丙烯-二烯系单体或氟橡胶，在顶部和底部配置聚四氟乙烯轴承支撑。

The gauge consists of a "shock tracker" and six separate particle velocity gauges, which is made from a 5 μ m thick copper foil by laser etching, and then, the gauge is coated by two Polytetrafluoroethylene film.

组合式电磁粒子速度计由5μm厚的铜箔激光刻蚀而成，两面用聚四氟乙烯薄膜封装，包括1个冲击波跟踪器和6个粒子速度计。

objective to introduce a new method of expanded polytetrafluoroethylene ( eptfe) augmentation for hump nose plasty and to decrease the complications causing by traditional methods.

目的介绍应用膨体聚四氟乙烯填充整复驼峰鼻的方法，以减少传统手术方法的并发症。

The wear characteristics of polytetrafluoroethylene ( PTFE) were tested on the model MPX-200 pin-on-disk tester in this paper. The effects of sliding speed, load, temperature and surface roughness of counterparts on wear were determined.

作者用MPX-200型栓-盘摩擦磨损试验机测试了模压聚四氟乙烯的磨损性能，考察了滑动速度、负菏、温度及偶件表面粗糙度对磨损的影响。

It is an important method to modify polytetrafluoroethylene ( PTFE ) by compositing PTFE with inorganic particles.

聚四氟乙烯 ( PTFE ) /无机粒子的复合是改进PTFE性能或实现功能化的重要方法.

Development of polytetrafluoroethylene sifter

聚四氟乙烯筛板的研制

Air-curing anti-sticking coating is prepared with epoxy resin as binder and polytetrafluoroethylene as filler.

以环氧树脂为基料,聚四氟乙烯为填料制备了常温固化 防粘 涂料.

Objective : To evaluate the application of expanded polytetrafluoroethylene ( ePTEE ) graftes for establishing hemodialysis access.

目的: 研究及评价人造血管建立血液透析通路的临床应用效果.

Study on Surface Modification of Polytetrafluoroethylene Using Atmospheric Pressure Glow Discharge in Air

用大气压下空气辉光放电对聚四氟乙烯进行表面改性

results many biomaterials such as silicon, dacron, expanded polytetrafluoroethylene ( eptfe), polyester and chitin could be used as nerve conduits to repair nerve defect, the degradable biomaterials were better.

结果硅胶、涤纶、聚四氟乙烯、聚交酯及几丁质等生物材料均可作为桥接神经缺损的神经导管，以可降解的生物材料较为理想；

Polyphenylene sulfide ( PPS ) composites filled with Polytetrafluoroethylene ( PTFE ) and kaolin nanoparticles were prepared by compression molding.

通过模压的方法制备了聚四氟乙烯 ( PTFE ) 和纳米高岭土填充的聚苯硫醚 ( PPS ) 复合材料.

Electric iron botto water soluble polytetrafluoroethylene vacuum electrostatic spray painting technique

电熨斗底板水溶性聚四氟乙稀真空静电喷涂工艺

Objective To study the durability of expanded polytetrafluoroethylene artificial heart valve ( ePTFE AHV).

目的测试膨体聚四氟乙烯人工心脏瓣膜（ePTFEAHV）的耐久性。

PTFE ( polytetrafluoroethylene) is the fluorinated straight-chain polymer, made by the polymerization of tetrafluoroethylene monomer, it is widely used in various fields because of some excellent performance, such as chemical stability, aging resistance and thermal stability.

聚四氟乙烯（polytetrafluoroethylene，简称PTFE）为全氟化直链高聚物，由四氟乙烯单体（TFE）聚合制得，具有化学稳定性、耐老化性和热稳定性等优良性能，因此被广泛应用于各个领域。

Mechanism of swelling oil-leakage of transformers seal rings made by polytetrafluoroethylene is presented in this paper.

溶胀渗漏油是指密封因吸油增重,油再透过密封圈渗漏到变压器体外的过程.

Teflon: Trademark for a polymer of tetrafluoroethylene fluorocarbon ( polytetrafluoroethylene [ PTFE ] ) .

铁氟龙: 四氟乙烯( ptfe ) 或氟化的乙烯-丙烯 ( FEP)的聚合物的商标名.