聚丙烯

The isothermal crystallization morphology of polypropylene copolymer containing TM-3,a clarifying nucleator,was observed by polarized light microscope.

一般共聚聚丙烯是在丙烯聚合过程中添加少量乙烯单体，通过改变聚丙烯分子的结构规整性而提高其低温抗冲性能。

With azodicarbamide as blowing agent and nano-CaCO3 as nucleator, the cell morphologies of non-crosslinked and corsslinked polypropylene foams were studied. The effects of different contents of crosslinking agent on the flexural strength and non-notched impact strength of PP foamed compound were also studied.

以活性纳米碳酸钙为成核剂，偶氮二甲酰胶为发泡剂，研究了未交联和交联聚丙烯发泡的泡孔结构，同时还研究了不同的交联剂含量对聚丙烯发泡制品弯曲强度和无缺口冲击强度的影响。

From the experiments, we can see the affect of concrete performances mixing with liter polypropylene fiber and glass fiber is minor. Compare with common concrete, the crack-load of concrete slab mixing with liter polypropylene fiber and glass fiber is marked improved. Mixing with liter polypropylene fiber and glass fiber, the behavior of cracks-resisting of is marked improved, and the cracks are controlled and smeller.

研究表明，在混凝土中掺入低掺量的聚丙烯纤维或玻璃纤维对抗压强度及抗拉强度的影响较小；纤维混凝土板比普通混凝土板的开裂荷载有较为显著的提高；加入低掺量的聚丙烯纤维后，混凝土板的抗塑性开裂性能有显著提高，可以抑制、细化裂缝。

At the same time,MB could decrease the spherulite size and the crystallization degree of polypropylene.

结果表明，成核剂MB较好地改善了聚丙烯的力学性能以及熔体流动性能，降低了聚丙烯球晶尺寸。

In this paper,the basic magnesium sulfate whisker which was modified by sodium stearate was added into polypropylene base.

将碱式硫酸镁晶须经硬脂酸钠改性后，添加到聚丙烯基体中，考察了复合体系的力学性能和阻燃性能，并对改性前后晶须在聚丙烯基体中的分散情况做了比较。

At the web-based control page, it is able to upload our 2-D PAGE data and download the Tag Image File Format image. The 2-D PAGE data can be searched easily by limitation such as Peptide, NCBI Accession number, Map, Organisms, pI/Mw range, Drug/Compound, and Operator.

在这个网路管理介面内，我们可上传二维聚丙烯醯胺胶体的电泳资料、下载标志图形档案格式的影像图片，并且我们可以很容易的藉由如：蛋白质的名称、NCBI的登录号码、图像、胶片所使用的物种、蛋白质的等电点值与分子量范围（pI/Mw range）、胶片使用的抗生素或化合物（Drug/Compound）以及实验操作者等条件来搜寻二维聚丙烯醯胺胶体电泳资讯。

A transparent polypropylene compound for refrigerators is prepared by incorporating a clarifier ,toughener and other agents into conventional PP.

以普通聚丙烯为主要原料，通过添加透明剂、增韧剂和其它助剂，研制出了具有综合性能优良的冰箱用透明聚丙烯专用料。

The bottle is made from layered polypropylene/ethyl vinyl alcohol/polypropylene, with the inner surface coated with a proprietary nonstick material.

瓶子是由多层聚丙烯/乙基乙烯醇/聚丙烯，与内表面涂有不粘材料的专利。

In this paper, six wollastonite fillers with different kinds of surfaces characteristics were designed to modify properties of polypropylene and the effects on the mechanics performance, interfacial effect and crystallizing behavior of composite material were studied.

本论文研究设计了六种硅灰石填料对聚丙烯进行填充改性，研究了不同表面特性的硅灰石对聚丙烯力学性能、界面效应和结晶行为等的影响。

Serum immunoglobulin of Amur sturgeon Acipenser schrenckii, Chinese sturgeon Acipenser sinesis and Huso sturgeon Huso dauricus which were healthy and unimmuned, was first time respectively purified by using saturation ammonium sulfate precipitation followed by Sephadex G-200 gel column chromatography. Molecular weight and partial characterization of Ig and heavy chain and light chain of Ig were measured by polyacrylamide gel electrophoresis, SDS polyacrylamide gel electrophoresis, Western blotting and Ouchterlony method.

采用饱和硫酸氨分步沉淀和Sephadex G-200凝胶层析的方法，首次分别纯化制备了健康非免疫状态下中华鲟、史氏鲟和达氏鳇的血清免疫球蛋白，并采用聚丙烯酰胺凝胶电泳、SDS-聚丙烯酰胺凝胶电泳、蛋白免疫印迹及免疫琼扩实验等方法对其Ig及Ig亚单位的分子量和部分特性进行了分析。

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。