To study the influence of the field - emission cathode materials for the vacuum environment of the field - emission devices, ambipolar electrode configuration was designed in this paper. cnts / ptfe and cnts / epoxy composite materials were used as field - emission cathode and the two electrode configurations were encapsuled into a static vacuum system respectively. by contrastive testing, the field - emission properties
3 .為了研究場發射陰極材料對場發射真空器件內部真空度影響的問題,設計
二極電極結構,分別以碳納米管/聚四
氟乙
烯和碳納米管/環氧樹脂兩種復合材料作為場發射陰極,進行了真空封裝,製成了靜態的真空系統。
0 - 3 pzt / pvdf piezoelectric composite is a kind of piezoelectric material, which integrates with merits of pzt and pvdf respectively and counteracts deficiencies of them. so, it is used widely in every fields of modem social life
0 ? 3型pzt / pvdf壓電復合材料是一種綜合了鋯鈦酸鉛( pzt )和聚偏
二氟乙
烯( pvdf )的自身優點,彌補它們自身缺陷的一類壓電材料,因而廣泛地應用於現代社會生活中。
Some additives such as graphite, ptfe and csno3 can improve obscuring effect of smoke screening in infrared waves. furthermore, some formulas entered nano ferric oxide can largely improve the effect of infrared extinction
指出金屬鎂粉優于其它金屬粉;三氧化
二鐵和
二氧化鈦是較好的氧化劑選擇;石墨、聚四
氟乙
烯和硝酸銫的添加有利於提高發煙劑紅外遮蔽能力。
Made of high - speed mixing polytetrafluoethylene resin and a certain volume of filling agent ( such as carbon fiber, graphite, molybdenum disulfide, glass fiber and bronze powder etc. ) shaped by moulding then through high heat sintering
用聚四
氟乙
烯樹酯與一定量的填充劑(如:碳纖維、石墨、
二硫化組、玻璃纖維、青銅粉等)經高速混合均勻後用模塑成型經高溫燒結製成。
10. 02 specification for crosslinked poly vinylidene fluoride heat - shrinkable tubing for electrical insulation
電絕緣用聚1 , 1 -
二氟乙
烯熱縮管件規范
Measurement of 27 ultramicroporous expanded polytetrafluoroethylene mitral valve under pulstile flow in vitro
超微孔膨體聚四
氟乙
烯人工
二尖瓣體外脈動流性能檢測
This article is about the polymer separator full of holes, we research the performance of the separator, including making two kinds separters that produce wth complete different methods : spreading the separator, pvdf as the basic material, dbp as the plasticizing agent, nm sio2 as the inorganic addition and acetone as the solvent, and make separator on the special machine ; dipping in the separator so that intensify the seprater, its dip liquor is as the liqure as the spreading separator, and dip the base material pp / pe / pp into the liquor for more than 2 hours
本文對多孔聚合物電解質隔膜進行了綜合研究。以聚偏
氟乙
烯( pvdf )為基體,鄰苯
二甲酸
二丁酯( dbp )為增塑劑,納米sio2為無機添加劑,丙酮為溶劑,在流延機上塗布得到了聚合物電解質隔膜。以流延法制備隔膜的漿料為處理液,將基體材料pp / pe / pp浸泡在處理液中2h以上,制備出強化電解質隔膜。
Flexible insulating sleeving - specification requirements for individual types of sleeving - heat - shrinkable, semi - rigid polyvinylidene fluoride sleeving, flame retarded, fluid resistant, shrink ratio 2 : 1
絕緣軟套管.各種型號軟管規范.阻燃耐流體收縮比2 : 1的熱收縮半硬質聚偏
二氟乙
烯軟套管
Flexible insulating sleeving - part 3 : specifications for individual types of sleeving - sheet 228 : heat - shrinkable, semi - rigid polyvinylidene fluoride sleeving, flame retarded, fluid resistant, shrink ratio 2 : 1
絕緣軟套管.第3部分:各種型號套管規范.活頁228 :阻燃耐流體收縮比2 : 1的熱收縮半硬質聚偏
二氟乙
烯套管
Flexible insulating sleeving - part 3 : specifications for individual types of sleeving ; sheet 229 : heat - shrinkable semi - flexible, polyvinylidene fluoride sleeving, flame retarded, fluid resistant, shrink ratio 2 : 1
絕緣軟套管.第3部分:各種型號套管的規范要求.第229活頁:熱縮半撓性阻燃抗液流收縮比2 : 1的聚偏
二氟乙
烯套管
Xifei brand fluorocarbon coated aluminum panel has outstanding performance, that ' s all because of the adopts of kynar500 ? / hylar5000 ? containing over 70 % resin and the fluorocarbon coatings made by the world famous pvdf manufacturer
西飛牌
氟碳塗層鋁板之所以性能卓越,是因所選用內含樹脂總量70 %以上的kynar500 ? / hylar5000 ?聚偏
二氟乙
烯樹脂的世界著名塗料生產商的
氟碳塗料。
Specification for flexible insulating sleeving - specification requirements for individual types of sleeving - heat - shrinkable semi - flexible, polyvinylidene fluoride sleeving, flame retarded, fluid resistant, shrink ratio 2 : 1 - sheet 229 : heat - shrinkable semi - flexible, polyvinylidene fluoride sleeving, flame retarded, fluid resistant, shrink ratio 2 : 1
絕緣軟套管.各種型號套管的規范要求.熱縮半撓性阻燃抗液流收縮比2 : 1的聚偏
二氟乙
烯套管
The frictional loss of modified uhmwpe was studied through adding fillers, such as microfine glass bead, mos2 , talc, glass fibre, carbon fibre and ptfe
通過填料,如超細玻璃微珠、
二硫化鉬、滑石粉、玻璃纖維、碳纖維、聚四
氟乙
烯,對改性后的超高分子量聚乙
烯的摩擦磨損進行研究。
The reasons of local liquid leakage and difficulty in overhauling of the dead trays in rectifying tower kettle for butadiene extraction were analyzed and the coupling and sealing structure of dead trays were redesigned
摘要分析了造成丁
二烯萃取精餾塔塔釜死塔盤局部漏液和檢修拆裝困難的主要原因,重新設計出由卡板、螺栓和聚四
氟乙
烯混編盤根組成的死塔盤的聯接與密封結構。
The seat material shall be one of the following materials : ethylene - propylene - diene monomer ( epdm ) or fluoroelastomer ( fpm ) with polytetrafluoroethylene ( ptfe ) bearing support at the top and bottom
閥座材料應該是下列材料之一:乙
烯-丙
烯-
二烯系單體(三元乙丙橡膠)或
氟橡膠( fpm ) ,在頂部和底部配置聚四
氟乙
烯( ptfe )軸承支撐。
Aerospace series - sealing compounds - part 2 : vinylidene fluoride and hexafluoropropylene base ; technical specification
航空航天系列.密封化合物.第2部分:偏
二氟乙
烯-六
氟丙
Polyvinylidene fluoride resin kanar500 of the fluorine carbon coating finish paint and the varnish is normally divided into 2nd coating, 3rd coating or 4th coating
氟碳塗料面漆和清漆的聚偏
氟乙
烯樹脂kanar500 。一般分為
二塗三塗或四塗。
Pvdf. 3 : plastics piping systems for industrial applications - poly vinylidene fluoride - fittings
工業用聚
氟乙
二烯
Pvdf. plastics piping systems for industrial applications - poly vinylidene fluoride - pipes
工業用塑料管道系統.聚氟乙二烯