English translation for "polar group"
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- 极性基团
极性基因
Related Translations:
- Example Sentences:
| 1. | Lord snow , it will be recalled , talked about “ the two cultures and the scientific revolution ” and expressed his concern that “ the intellectual life of the whole of western society is increasing being spilt into two polar groups
斯诺爵士曾谈到过“两种不同的文化和科技革命” ，并表示担心“西方社会和知识生活正在走向两极分化” 。 | | 2. | The synthesis of modified polyolefin which grafted polar groups ， effects on interfacial adhesion of glassfiber reinforced polyolefin composite systerm and applications in glass fiber sizing were introduced in this paper
本文介绍了接枝极性基团的改性聚烯烃的合成及其对玻璃纤维增强聚烯烃复合体系界面结合的影响以及在玻璃纤维浸润剂配方中的应用。 | | 3. | It was observed that the inclusion complexes of 3 - cyclodextrin and its polylactide - garfted copolymer with insulin could be formed and the inclusion behaviors were affected by the amount of 3 - cyclodextrin , temperature as well as ph value . the formation mechanism of the supramolecular systems between 3 - cyclodextrin and insulin was the similar to that between 3 - cyclodextrin and the above - mentioned aromatic amino acids . because of the three - dimensional structure of insulin and the exterior polar groups of its aggregates , the molecular recognition and inclusion of 3 - cyclodextrin with insulin were hindered
由于受主客体之间的尺寸匹配性的影响， ?环糊精与这三种芳香族氨基酸形成了不同包合比的包合物， ?环糊精分别与l ?苯丙氨酸和l ?酪氨酸形成了1 ： 1的包合物，而与l ?色氨酸却形成了2 ： 1的包合物，各包合物的稳定常数也有所不同。 | | 4. | As to the high - density polyethylene , two strategies were performed : ( 1 ) after being modified by grafting polar groups on its backbone , polyethylene and organic montmorillonite were melt mixed directly , which could obtain the polyethylene / montmorillonite nanocomposites . the effect of groups grafted on the backbone on the efficiency of intercalation was investigated in this paper ; ( 2 ) choosing the grafters obtained in this experiment as the compatilizers , polyethylene / montmorillonite nanocomposites had also been prepared by melt mixing the polyethylene , grafter and organic montmorillonite . the difference of grafters and sequence of mixing on the intercalation result had also been analyzed
对于高密度聚乙烯，采用以下两种思路进行： ( 1 )对聚乙烯首先进行功能化改性，使聚乙烯分子链上接枝上不同的极性基团，将改性后的聚乙烯再同有机蒙脱土直接熔融复合，成功的制备了聚乙烯蒙脱土纳米复合材料，并考察了接枝到聚乙烯主链上基团的不同对最终插层效果的影响； ( 2 )选用制得的接枝物作为相容剂，将聚乙烯，接枝物，有机蒙脱土三者熔融复合，也可以得到聚乙烯蒙脱土纳米复合材料，并对选用不同的接枝物作为相容剂以及复合顺序对最终插层效果的影响加以分析。 | | 5. | The dispersion of mmt and the properties of composites were basically determined by the nature of organo - mmt and the polarity of the polymer chains . the intercalated nanocomposites could be explained in terms of the formation of " ladder " structure due to the excessive polar groups on the polymer chains which adhere adjacent silicate sheets
插层高分子链的极性基团含量要适宜；否则，极性基团将相邻片层“胶粘”形成稳定的“梯形”结构，导致高分子链插层受阻，易形成插层型纳米复合材料。 | | 6. | The experiment result discovered the grafting effect of crylic acid and acrylamide were obvious which can be proved by the sem photoes . by the ft - ir testing of the grafted uhmwpe fabric , we discovered that some new polar groups were introduced to the surface . then by the dynamic wetting experiment of the grafted uhmwpe fabric , we concluded that the wetting time was a parabola relation with the graft ratio and the wetting time of the grafted uhmwpe fabric was less than that of untreated fabric . the results showed that after the coradiation grafting , uhmwpe fiber ' s surficial nonreactivity could be improved effectively
通过对接枝uhmwpe织物的红外光谱分析，发现其表面引入了许多新的极性基团。最后运用了纤维动态浸润性分析了接枝后的效果，得到所测浸润稳定时间与接枝率成抛物线关系，而且接枝样品的浸润稳定时间都比未处理样品的浸润稳定时间小些，这说明了共辐照接枝的方法可以有效地改善uhmwpe纤维表面惰性，达到uhmwpe纤维表面改性的目的。 | | 7. | The results indicated that the dimension , shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c , but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased , melting temperature and decomposition temperature decreased , in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o , c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests . the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big . this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60 , 30 : 30 - 40 and 60 : 15 - 30 respectively , the friction coefficient was relatively small . the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time , the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle , lubricant transfer film could be formed on metal surface , thus direct contact between the surface of metal friction pair rings was reduced . their working life was elongated extremely ; there was mainly much graphite , a little ptff , moo3 , feso4 , cus and so on in lubricant transfer film
试验结果表明：所选原料的尺寸、形状及纯度可满足固体润滑剂的性能要求；聚四氟乙烯树脂热分解温度超过400 ，但在ptfe中加入无机填料会使复合材料吸水率提高，熔融温度及分解温度降低，且伴有氧化分解反应；碳纤维表面含有c = o及c - o - c等极性基团，有利于提高其与其它组分的相容性，提高层间剪切强度；均匀设计试验方法能够用较少的试验次数找出配方与摩擦性能间的关系，拟合曲线基本能表示各配方的摩擦系数发展趋势；配方中不加铜粉或不加石墨，其摩擦系数均较高，说明铜粉和石墨应该配合使用；当铜粉15份、石墨60份时，铜粉30份、石墨30 - 40份时，铜粉60 、石墨15 - 30份时，摩擦系数均具有较低值；纯聚四氟乙烯树脂在空气冷却时结晶度最大，磨损量也是三者中最大的；同时，固体润滑剂试样在空气冷却时的磨损量也是三者中最大的：不论是固体润滑剂与45 #钢轴配副或是固体润滑剂镶嵌入铜套后与gcr15钢轴配副，在金属表面均可形成润滑转移膜，从而减少金属摩擦副表面间的直接接触，大大延长其使用寿命;转移膜中主要含有较多的石墨、少量聚四氟乙烯、 moo 。 | | 8. | Intercalation and exfoliation behaviors of organo - mmts in low density polyethylene ( ldpe ) and copolyethylene / mmt systems have been investigated . it was found that ldpe has certain intercalation capability , while ethylene vinyl - acetate copolymer ( eva ) with polar groups exhibits some compatibilization and excellent intercalation capability
结果表明，非极性的ldpe插层能力极其有限，聚乙烯共聚物具有良好的插层能力； mmt分散效果以及复合材料的性能取决于高分子链的极性和有机蒙脱土的性质。 | | 9. | This is because they have inclusive between the polar groups of nylon and organo - mmt ( ommt ) . however , pp is a kind of non - polar polymer with mmt being difficult to realize complete intercalation and exfoliation . therefore , the domestic research about the pp / mmt nanocomposites were still little
这是由于尼龙的极性基团与有机化蒙脱土的极性基团之间具有相容性，而聚丙烯( pp )是一种非极性的聚合物，与蒙脱土不易实现完全的插层剥离，因此国内关于pp蒙脱土纳米复合材料的研究还鲜有报道。 |
- Similar Words：
- "polar gnomonic charts" English translation, "polar gnomonic graticules" English translation, "polar granule" English translation, "polar granules" English translation, "polar grid" English translation, "polar guide" English translation, "polar helmet" English translation, "polar hemisphere" English translation, "polar high" English translation, "polar high belt" English translation
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