聚乙烯

Kim Duk-management group to introduce the German equipment manufacturer Junik aluminum plastic composite pipe production line, the German company Krauss Maffei to the PVC-U drainage pipe production line, the German company Barton Rumsfeld plastic pipe production line and the Hong Kong Chen Hsong injection molding machine, the use of high-tech means of production "Jin" brand aluminum PAP composite pipe, PPR aluminum pipe, PE-X cross-linked polyethylene pipe, PE-RT polyethylene pipe temperature, PPR plastic pipes, PVC-U drainage new compound Pipe, PVC-U to the water pipes, cable sheathing, etc., and be compatible with the brass pieces, PPR pipe, PP-RT pipe fittings, PVC pipe fittings and the installation of the corresponding tools.

金德管业集团引进德国尤尼克塑料设备制造公司铝塑复合管生产线、德国克劳斯·马菲公司PVC-U给排水管生产线、德国巴顿菲尔德公司全塑管生产线及香港震雄注塑机，采用高科技手段生产"金德"牌 PAP铝塑复合管、PPR铝塑管、PE-X交联聚乙烯管、PE-RT耐高温聚乙烯管、PPR全塑管、PVC-U新型复合排水管、PVC-U给水管、电缆护套管等和与之配套的铜管件、PPR管件、PP-RT管件、 PVC管件及相应的安装工具等。

Maffei Corporation PVC-U drainage pipes to the production line, the German company Barton Rumsfeld plastic production line and the Hong Kong Chen Hsong injection molding machine and other advanced production equipment, use of hi-tech means of production "Jinde" brand aluminum PAP composite pipe, PPR aluminum-plastic tube, PE-X cross-linked polyethylene pipe, PE-RT polyethylene pipe temperature, PPR plastic pipes, PE gas pipe, PE water pipe, PE mining pipe, HDPE large caliber double-wall corrugated pipe, HDPE Large Diameter Winding Pipe, PVC-U new composite pipes, PVC-U to the water pipes, cable sheathing, etc., and be compatible with the brass pieces, PPR pipe fittings, PE-RT pipe, PE water supply pipe pieces, PE gas pipe pieces, PE mining pipe pieces, PVC pipe fittings and the corresponding installation tools.

玛菲公司PVC-U给排水管生产线、德国巴顿菲尔德公司全塑生产线及香港震雄注塑机等先进生产设备，采用高科技手段生产"金德"牌PAP铝塑复合管，PPR铝塑管、PE-X交联聚乙烯管、PE—RT耐高温聚乙烯管、PPR全塑管、PE燃气管、PE给水管、PE矿用管、HDPE大口径双壁波纹管、HDPE大口径缠绕管、PVC—U新型复合排水管、PVC—U给水管、电缆护套管等和与之配套的铜管件、PPR管件、PE—RT管件、PE给水管管件、PE燃气管管件、PE矿用管管件、PVC管件及相应的安装工具等。

But the producing of PVA is followed by plenty of byproduct -methyl acetate, at a ratio of about 1 .7 tons of MeOAc per ton of PVA.

但在生产聚乙烯醇的过程中常产生大量的副产物醋酸甲酯(按重量计约为聚乙烯醇的1.7倍)。

In addition, micromotion between the nonarticulating side of the liner and the interior of the shell may be a source of polyethylene debris generation, or "backside wear." Recognition of this problem has led to improements in the fixation of the liner within the metal shell, and some designs also hae included polishing the interior of the shell.

另外，内衬的非关节面与金属帽内面之间的微动也可能是聚乙烯颗粒产生的一个原因，这称为"背侧磨损"，认识到这个问题，人们开始改进聚乙烯内衬与金属帽间的固定，而有些类型的假体金属帽内面是抛光的。

LIN Hailin,CUI Yingde,DU Lin,CHEN JianpingInstitute of Applied Chemistry,Zhongkai University of Agriculture and TechnologySuper water absorbent resins P,SA/NaAA,SA/NaAA/PVA and SA/NaAA/AM were synthesized from sodium alginate,acrylic acid,polyvinyl alcoholand acrylamide,with N,N–methylenebisacrylamide as crosslinking agent,(NH4)2S2O8 - NaHSO3 as initiator,by means of aqueous solution polymerization.

以醚化海藻酸钠、聚乙烯醇、丙烯酰胺、丙烯酸为单体，N， N–亚甲基双丙烯酰胺为交联剂，过硫酸铵-亚硫酸氢钠为引发剂，采用水溶液法制备聚丙烯酸钠p吸水树脂和海藻酸钠/丙烯酸钠、海藻酸钠/丙烯酸钠/聚乙烯醇（SA/NaAA/PVA）及海藻酸钠/丙烯酸钠/丙烯酰胺吸水性复合树脂。

In certain systems, nonprotein agents such as polyvinylpyrrolidone and polyvinyl alcohol have been used.

某些系统还用过非蛋白试剂如聚乙烯吡咯烷酮和聚乙烯醇。

The developmental focuses and commercial achievments in Chinese plastics industry in 2004 were introduced,including nano-composites,sun cell , UHMW polyethylene,nucleator,plasma treatment,polyvinyl alcohol reinforced thermoplast et al.

介绍了2004年中国塑料产业的研发热点及产业化成果，包括纳米复合材料、太阳能电池、超高分子量聚乙烯、成核剂、等离子处理、聚乙烯醇膜等。

It consists of papermaking latex and PVA glue in the dry material ratio of 5-8, penetrant and dispersant.

它由造纸胶乳、聚乙烯醇胶、渗透剂和分散剂组成，其中，造纸胶乳与聚乙烯醇胶干料的重量比为5－8∶1。

It is shown that solubility of ethylene can be described by Henry＇s law and that of n-hexane and iso- pentane is non-linear.

聚乙烯结晶度20％～72％范围内，有机小分子在聚乙烯中的溶解度随结晶度的增加而减小。

Because of excessie wear and tissue reaction, polytetrafluoroethylene was replaced by high-density polyethylene and later by ultrahigh molecular weight polyethylene.

由于聚四氟乙烯的磨损和组织反应严重，因而被高密度聚乙烯以及后来的超高分子聚乙烯所取代。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。