查询词典 polypropylene

And nearly 50 percent reduction of activation energy ,has obtained with the catalyst polypropylene ratio of 30%.

说明粉煤灰和电石渣对聚丙烯裂解具有一定的催化效果。

The significance of studying natural fiber/polypropylene composites depends on their man affinity property, environment amicableness , sustained property.

研究植物纤维／聚丙烯复合材料的意义在于这种材料具有人类亲和性，环保友好性和可持续性。

The results showed that the structure of modified polypropylene fiber was similar to acetate fiber, the contact angle of it decreased and the polarity increased.

研究表明：改性烟用聚丙烯纤维具有类似于醋酸纤维的结构形态，对水的接触角降低，纤维的极性增加，有利于提高其吸附性能。

The unit cell parameter of polypropylene crystallized with different method and condition was studied:curves of wide angle X-ray diffraction are determined by stepwise scanning method,X ray multi peaks resolution program and simulation program of unit cell parameter developed by the general inverse matrix method are used as data processing of determined results.

研究了不同方式和条件下形成的等规聚丙烯结晶的晶胞参数，用步进扫描测定试样的宽角X-射线衍射，用广义逆矩阵法编的计算机分峰程序和晶胞参数拟合计算程序对测定结果进行计算和数据处理。

Maleic anhydrite was grafted onto polypropylene by melt grafting method, and the effects of the amounts of monomers and initiator on the grafting rate were discussed.

采用熔融接枝法，考察了单体和引发剂用量对聚丙烯/马来酸酐接枝物接枝率的影响。

Polypropylene centrifuge tubes can not be with concentrated nitric acid (95%), aqua regia, toluene, benzene, gasoline, kerosene, ether, etc. from accessing.

聚丙烯离心管不能与浓硝酸（95％）、王水、甲苯、苯、汽油、煤油、乙醚等接触使用。

The flow properties of the polypropylene and polyethylene were studied using Archimedes spiral and square spiral melt fluidity test molds, which had the same shape of cross section but different cavity profiles, and then relationship between melt flow ratio and cavity profile was analyzed.

摘 要：对聚丙烯和聚乙烯 2种塑料在阿基米德螺旋线与方形螺旋线流动性测试模具中的流动性能进行研究，分析塑料流动比与型腔轮廓特征的关系；引入修正系数β，对流动比校核公式进行修正。

Methods:Argentum was used as antibacterial agent to prepare the argentation medical polypropylene mesh with chemistry liquid phase the meshes with Rochelle salt as reducing agent.

目的：制备镀银的医用聚丙烯网片，并检测其抗菌性和力学性能。

There is also used in the polypropylene fiber cement concrete and asphalt concrete for the polyester fibers and concrete interface agent.

另外还有用于水泥混凝土的聚丙烯纤维和用于沥青混凝土的聚脂纤维以及混凝土界面剂。

It produces 10 million m2 of all kinds of high and middle grade Axminster carpet, cut/loop carpet, wire Wilton woven carpet, Wilton carpet, carpet tile, carpet stamp, piece-dye carpet, automobile carpet, tufted carpet, woolen organic carpet and hand-knitted carpet and over 10 thousand tons of nylon, polypropylene filament yarn and terylene filament yarn in one year.

凭借着雄厚的资金实力，海马集团从英国、美国、比利时等国家引进的具有九十年代先进水平的地毯生产设备二百余台套，每年生产的各种中高档阿克明斯特、卡特鲁普、单面威尔顿、威尔顿、方块地毯、印花、匹染、汽车用毯、簇绒及羊毛奥甘尼克和手工编织地毯一千万平方米，尼龙、丙纶长丝及涤纶短纤一万多吨。

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。