查询词典 polyethylene

Based on hydrogen peroxide and ammonium persulfate as compounded initiating system,unsaturated vinyl monomers were used to directly copolymerize a new high range polycarboxylate water reducer structurized in carboxyl,esterquat and amido as main chain and in polyethylene glycol ether as side chain.

以过硫酸铵和双氧水为复合引发体系，采用不饱和单体直接共聚，得到一类主链为羧基、酯基、酰胺基，侧链为聚乙二醇醚基的新型聚羧酸高效减水剂，研究了共聚物的结构对分散性能的影响。

Based on this situation,polyethylene cystose constructed floating bed s were used to cultivate the Scindapsus aureus,Canna generalis and Monstera,under the comprehensive function of the bio-membrane formed on the surface of bio-medium,to improve water quality of scenic water bodies.

利用富营养化水体营养盐资源，以聚乙烯发泡板为人工浮床栽培绿萝、美人蕉和龟背竹，在生物填料表面生物膜的综合作用下，研究其净化景观水体的效果。

Porous macromolecular polyethylene characterized by light and porous fits the tissue ingrowth, but it is instability and dearticulation.

钛质人工听骨生物相容性和组织亲合性佳、耐久性好、重量轻、可塑性强、不易脱位，是一种有推广前景的听骨修复材料。

The degradation of ultra-high molecular weight polyethylene in decahydronaphthalene solvent and the inhibition effect of antioxidant and co-antioxidant on the degradation were studied.

制——&&'一取高性能纤维、膜或其它工程材料所使用聚乙超高分子量聚乙烯为北京试剂二厂和上海烯的平均分子量一般部在 10'以上，而制法上则化工研究院产品。

Dibenzyl oxalate was synthesized from oxalic acid, potassium hydroxide and benzyl bromide under microwave irradiation using tetrabutylammonium bromide as phase-transfer catalyst and polyethylene glycol-200 as solvent.

在微波辐射条件下，以草酸、氢氧化钾和溴化苄为原料，四丁基溴化铵为相转移催化剂，聚乙二醇200为溶剂合成了草酸二苄酯，并通过熔点和红外光谱对产物的结构进行了表征。

In this paper, the thermally reversible crosslinking reaction and the properties of synthesized TPE based on the reactions of chlorine containing polymers such as PVC , chlorined polyethylene , epichlorohydrin rubber and acrylic rubber with salts of dicyclopenladienyl dicarboxylate crosslinking agents were studied.

本研究以环戊二烯二酸盐衍生物作热可逆共价交联剂，通过与聚氯乙烯、氯化聚乙烯、氯醚橡胶和丙烯酸酯橡胶等含氯聚合物的脱MX酯化反应来实现共价关联，并制取相应的新型TPE。

A series of segmented thermally stimulated shape-memory polyurethanes, which consist of polyethylene adipate glycolas the soft segment and 4,4'-diphenylmethane diisocyanate-1,4-butanediol-DPA(which consists of ring components) as the hard segment were synthesized by one-step polymerization.

以聚己二酸乙二醇酯二醇为软段、4，4' -二苯基甲烷二异氰酸酯 1，4 丁二醇含环状结构的扩链剂DPA为硬段，采用一步聚合法制备了一种具有热致形状记忆功能的多嵌段聚氨酯弹性体。

However, this technique is associated with complications, as reported by Barrack et al,17 including detachment of the femoral head, dislodgement of the polyethylene liner from the acetabular shell and asymmetrical rotation of the liner.

然而，Barrack等报道这项技术也伴随有相关的并发症，包括股骨头分离，聚乙烯跑出髋臼之外及衬垫位置偏移。

It is obvious that the rheological property and dispersity of color masterbatch are improved with the addition of polyethylene wax.

影响色母粒黑点含量的主要因素不在于聚乙烯蜡的灰分含量，而取决于它的制备工艺。

M. Particles in sub-micron can be found dispersively. The main constituents of those tissue-detached particles are composed of polyethylene segments, metallic elements and their mixtures.

临床磨耗残屑的主要物种为聚乙烯片断、金属元素或两者聚集的混合物，且其元素的组成与人工膝关节组件所使用的材质有关。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。