聚丙烯

Under these conditions the adhesive showed good adhesive property and the shear strengths of felted polypropylene and adhered steel materiafreached 3.4MPa and 7.7Mpa respectively.

在此条件下制备的共聚物粘接聚丙烯材料和钢的剪切强度分别达3.4 MPa和7.7 MPa。

The contents of foreign-metal impurities such as copper and ferrum in raw acrylamide were detemined.

胺的中试研究，并得到了分子量达 1.45×10 7的超高分子量聚丙烯酰胺。

Edelmann have manufactured several machines for printing on non-paper substrates such as filmic, aluminum and 650 micron PP plastic for the Asian packaging market.

艾德曼有几个机器制造印刷的非文件基板，如电影，铝和650微米的聚丙烯塑料为亚洲包装市场。

Objective:Sumarize clinical experience in genioplasty filling with polyacry lamide hydrogel on 26 cases and search for an ideal kind of plastic meterial.

目的：总结聚丙烯酰胺水凝胶作颏部充填26例的临床体会，寻找一种理想的整形填充材料。

Effect of metal salts of substituted aromatic heterocyclic phosphate on the properties and morphology of isotactic polypropylene were studied.

研究了不同的取代芳基杂环磷酸金属盐类成核剂对等规聚丙烯性能及其微观形态的影响。

In this dissertation, the sodium bentonite was modified using hexadecyl trimenthyl ammonium bromide and cationic polyacrylamide.

本文以市售钠基膨润土为原料，分别以十六烷基三甲基溴化铵和阳离子聚丙烯酰胺为改性剂，制各了新型复合插层有机膨润土。

The sodium bentonite was modified by organic reagent hexadecyl trimenthyl ammonium bromide and cationic polyacrylamide. The structures of modified organo-bentonite and the effect of concentration of the intercalating reagent and reacting time on decoloring capacity were studied.

用阳离子有机改性剂十六烷基三甲基溴化铵和阳离子聚丙烯酰胺复合插层改性钠基膨润土，分析了改性膨润土的结构，研究了改性剂质量浓度及二次改性时间对复合插层膨润土脱色效果的影响。

The structure of the P consists of randomly distributed blocks of hydrophobe, 2-phenoxyethyl acrylate in the polyacrylamide backbone.

聚合物P结构中，疏水体(2-苯氧乙基丙烯酸酯)呈嵌段状无序地分布在聚丙烯酰胺主链上。

Based on the deterioration mechanism of corrosive medium, a lot of polymer such as ternary-polymer, adding-felt addition, hydrophobe and polypropylene fiber were added to enhance the performance of anti-corrosion, anti-penetration, conglutination and anti-cracking of original cementious material. The microstrure of cementious material was changed from the simplex hydration product of cement to the superposition structure of the hydrolysate of polymer and the hydration product of cement. A lot of the corrosive ions were prevented from the interior of concrete by this stable structure. The results of tryout indicated that the mending material has the good effect at the corrosion form of corrosive medium.

根据介质腐蚀形式的劣化机理，该文以提高修补材料耐腐蚀性能、抗渗透性能、粘结性能和抗裂性能为出发点，采用添加有机硅改性三元共聚物、增粘剂、孔隙憎水剂等多种聚合物和聚丙烯纤维对原水泥基材料进行改性，使得修补材料的内部微观结构从单纯的水泥水化产物转变成聚合物和水泥水化产物叠合的空间网状结构，这种稳定的结构能有效抵抗各种介质离子的侵蚀，在实际工程上的试用也显示出新修补材料良好的使用效果。

Hydrophobical association ; Polyacrylamide ; Inverse microemulsion ; Apparent viscosity

疏水缔合；反相微乳液；聚丙烯酰胺；表观粘度

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。