高密度聚乙烯和低密度聚乙烯是在名单中排在二位和三位的高聚物。
High-density polyethylene and low-density polyethylene were the second and third place polymers.
所有损坏的聚乙烯应在清洁之前对其涂层进行测深，且聚乙烯边缘应与钢材表面成30度角。
All loose or damaged polyethylene shall be trimmed back to sound coating prior to cleaning, and the edge of the polyethylene shall be bevelled at an Angle of 30 with the steel surface.
聚乙烯醇可用于生产维纶、聚乙烯醇缩丁醛和聚乙烯醇缩甲醛。
Polyvinyl alcohol can be used to produce vinylon, polyvinyl butyral, and polyvinyl formal.
最后挤外护套，采用常规的聚乙烯或一种特殊的能承受高电场的耐电痕聚乙烯。
This sheath can be either conventional PE or a special anti-tracking sheath if the cable is likely to be subjected to high electrical field strengths.
对聚乙烯燃气管道水力学特性、连接方式以及输送人工煤气的可行性进行了分析，阐明了推广应用聚乙烯燃气管的前景。
The paper gives an analysis of the hydraulics properties, the method of connection and the feasibility of transporting artificial coal gas and the prospects of expansion application of PE gas line.
简介了交联聚乙烯管道和增强聚乙烯管道的特殊连接技术。
Brief introductions are made about the special joining (technologies) for PEX pipe and reinforced PE pipe system.
热塑橡胶力学性质依赖于聚乙烯含量，同时，它与聚乙烯的结晶度及结晶完善程度有关。
The mechanical properties of thermoplastic rubber depended on the content of PE and, to a lesser extent, on the crystallinity and perfection of crystallization.
以少量氯化聚乙烯（CPE）混入低密度聚乙烯中，大大降低了试样中的空间电荷，电场分布趋向均匀。
To blend a small amount of chlorinated polyethylene(CPE)into polyethylene, the space charges in samples are greatly decreased and the field distribution trends to uniform.
对聚乙烯及改性聚乙烯的吸水特性和水树形成规律进行了研究。
The properties of water absorbing and water treeing in polyethylene and polyethylene modified samples were studied.
介绍国内外聚乙烯管材料的开发和生产情况，以及聚乙烯管材树脂的主要生产厂家。
Describes the development and production status of polyethylene pipe resin at home and abroad as well as the development advances of new polyethylene pipe resins.
国产与进口聚乙烯的分子量分布系数存在很大差异，并且分子量分布系数是造成聚乙烯蜡的应用性能差异的主要因素。
There are great difference in their molecular weight and distribution coefficient, which are the main factors affecting the applied performance of polyethylene wax.
热熔胶用聚乙烯蜡系列：本系列产品依原料来源不同分为合成级、裂解级和聚乙烯副产品三个等级。
Polyethylene waxes for Hot Melt Adhesive: These waxes can be divided into three kinds with synthetic grade and crack grade and polyethylene wax by-product in accordance with material source.
详细介绍了氯化聚乙烯的性能、用途及制备方法。我国在氯化聚乙烯的开发应用方面前景广阔。
Detailed description of properties, USES and production processes of chlorinated polyethylene is given. There are bright prospects for China in the development of chlorinated polyethylene.
通过聚乙烯、聚丙烯分别与木纤维复合制板工艺的实验，探讨了加入助剂和改变聚乙烯、聚丙烯用量对复合材料力学性能的影响。
This paper studies the influence of adding chemical coupling, changing the dosage of polyethylene and polypropylene on mechanical properties of Wood fiber and Plastic Composite (WPC) panel.
分析了聚乙烯内衬管从旧燃气管道内穿插跨越管道缝隙处，聚乙烯内衬承受管道内压的性能。
This paper analyzes the performance that the polyethylene lining resists the internal pressure of the pipeline at spanned gaps, during its insertion inside the old gas pipe.
介绍了聚乙烯、氯化聚乙烯及氯磺化聚乙烯的生产技术、加工应用进展及发展前景。
The production techniques, progress in processing and application and development prospects of polyethylene, chlorinated polyethylene and chlorosulfonated polyethylene are introduced.
综述了国内外聚乙烯生产、需求和发展趋势，并预测了未来聚乙烯的市场走势。
The current situation of polyethylene supply and demand worldwide was summarized, and forecasts the future quotation of the polyethylene market were mentioned.
本文研究了硅烷对聚乙烯的交联技术，开发了硅烷交联聚乙烯电缆料。
The crosslinked technology of silane on polyethylene was studied in this paper. The cable insulating compound of silane crosslinked polyethylene was developed.
分析了传统聚乙烯醇干燥工艺存在的问题，介绍了聚乙烯醇桨叶两级干燥工艺和应用情况。
The existing problems of traditional PVA drying were analyzed, the paddle two-grade drying process for PVA and its applications were presented.
聚乙烯共混物的接枝性能取决于组成共混物的聚乙烯种类和用量。
The grafting property of PE blends depends on the kind and content of PE.
概述了聚乙烯燃气管长、短期性能的评价方法，并结合我国的实际情况提出聚乙烯燃气管用于输送国产人工煤气的评价建议。
The evaluation methods about polyethylene gas pipe were reviewed in this paper, some idea according to national situation in which city gas is transferred was submitted.
在分析交联聚乙烯电力电缆及连接头结构基础上对交联聚乙烯电缆中间接头内外部温度关系进行了实验研究。
The relation of interior temperature and exterior temperature of XLPE cable joint is studied in lab based on structure analyzing of XLPE cable and cable joint.
聚乙烯的粘弹性能表明材料为超高分子量的聚乙烯。
The viscoelastic properties of the polyethylene also indicated that the polyethylene was of ultra high molecular weight.
简述了聚乙烯材料作为压力管道的优势，以及聚乙烯给水管道及管道材料在国内外的生产现状及发展趋势。
This paper briefly introduced the advantages of PE materials for pressure pipes and the present status of production and development trend of PE pipes for water supply at home and abroad.
利用具备活性的胺基树脂与聚乙烯醇进行交联反应，对改性聚乙烯醇涂布工艺进行了研究。
The modified PVA coating process was studied by the crosslinking reaction of the active amino resin and PVA.
分析了超高分子量聚乙烯制品的热性质，研究了超高分子量聚乙烯制品在焊接过程中的变化。
The heat properties of UHMWPE products are analyzed and the changes of UHMWPE products in the process of welding are studied.
测试不同储存时间下的硅烷接枝聚乙烯的熔体流动速率和硅烷交联聚乙烯电缆料在挤出机中停留不同时间后挤出物的表面状况、凝胶含量等。
By testing the MFR of silane grafted PE with different preservation time, and the surface condition and the gel content of the silane grafted extrudates with different retention time in extruder.
这些催化体系能二聚乙烯，并同时使生成的1 -丁烯与乙烯就地共聚，可以直接合成线型低密度聚乙烯。
These systems can not only dimerize ethylene but also simultaneously copolymerize ethylene with the in-situ formed dimer, 1-butylene, to directly produce LLDPE.
需要的薄膜是具有好的抗挤压的己烷低密度聚乙烯及低密度聚乙烯产品。
Required film is a hexene LLDPE and LDPE product that possesses good puncture and impact resistance.
需要的薄膜是具有好的抗挤压的己烷低密度聚乙烯及低密度聚乙烯产品。
Required film is a hexene LLDPE and LDPE product that possesses good puncture and impact resistance.
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