| 1. | Study on flotation reagent of multi - non - polar radical compound
含复式非极性基团浮选药剂研究 |
| 2. | That means pmma has changed from polar polymer to non - polar polymer
对此现象的解释机理提出了“孔洞”与“极性基团断裂”两种假设。 |
| 3. | An amphiphilic compound has a polar head which dissolves in water ( hydrophilic ) and a water insoluble organic tail
双亲分子有一个能溶解在水中的极性基团和一个疏水尾。 |
| 4. | 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。 |
| 5. | In the packing of amphiphilic molecules , like units of the molecules interact with each other , i . e . , the polar units associate with each other ; likewise , nonpolar unites associate to form hydrocarbon layers in the lamellar packing
在层状相中双亲分子的堆积类似于分子单元间的相互作用，即极性基团与极性基团缔合形成亲水层，而非极性基团之间缔合形成疏水层。 |
| 6. | The wet plating method permits to improve the adhesion of plating layers by treating the surface of polymers with an acid to generate the concavo - convex and forming the polar functional groups ( see , metal surface compendium , plastic plating techniques , page 13 )
湿镀方法可以改进镀层的粘附能力，其方法是用酸处理聚合物表面，以产生凸凹并形成极性基团。 |
| 7. | In order to explain the phenmena , two supposes of " hole " and " polar - group rupture " are proposed , according to the tests of ir , density , refractive index , conductor volume resistivity , the aging model of pmma is confirmed likely
通过其他实验（如红外光谱、测量密度、测量折射率、测量体积电阻率）的相互对比，基本上肯定了有机玻璃“极性基团断裂”的热老化模型。 |
| 8. | The results exhibit that this method not only guarantees the uniform dispersion of carbon nano tubes in coating but also increases polarized molecular group on the surface of carbon nano tubes . it is helpful to roundly improve the performance of coating . the effects of dosage of
实验验证运用这种处理方法不仅可以保证碳纳米管比较均匀地分散在涂层中,而且还使碳纳米管表面具有更多的极性基团,有利于导电防腐涂层性能的综合改善提高。 |
| 9. | 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。 |
| 10. | 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。 |
