高分子

In this article, the reaction mechnism of several series of high polymers that activate or depress the flotation of diaspore and other three gangues was obtained.

通过本论文的研究，初步得出几种改性高分子药剂对一水硬铝石及三种常见的脉石矿物的浮选抑制、活化机理。

RESULTS:The diffusive rate of diclofenac sodium from the two kinds of hydrophilic polymer gel was higher than that of diclofenac acid.

结果：在亲水的高分子凝胶基质中，离子形式的双氯芬酸钠扩散速率大于分子形成的扩散速率。

Solubility and diffusivity are two key factors in the description of mass transport.

溶解性和扩散性是描述溶剂在高分子中传质现象的两个关键因素。

B synthesis of β- diketone based side chain liquid crystalline random copolyphenylsisesquioxane and its metal complex.

此类β-二酮可作为高分子液晶中的介晶基元，并具有和大多数过渡金属离子形成络合物的能力。

It is found that the fluorescence intensity is increased with the elevation of temperature when the quencher diphenylamine is added to PU-DFY, which is an inverse phenomenon against the general fluorescent materials.

研究还发现，加入二苯胺猝灭剂的PU-DFY，荧光强度随温度的升高而增强，与一般荧光物质荧光强度的温度特性相反。关键词：聚氨酯-分散荧光黄；高分子荧光染料；水分散体；荧光

But if the heat treatment time was too long, the crystallinity and the storage modulus were decreased because of the disentanglement of some weak link.

但是如果热处理时间过长，高分子链中本身的一些薄弱链节则可能发生解缠现象，从而结晶度和储存模量又都下降。

The influence of the calcinating temperature and polymer dispersant on the size and morphology of MoSa nanocrystals were investigated.

采用沉淀法合成了不同形貌的MoS_2纳米微晶，考查了煅烧温度、高分子分散剂对MOS_2纳米微晶尺寸和形貌的影响。

Especially the most commonly used methods,such as coupling reagent,surfactant and polymer coating methods were introduced in detail.On these basis,the problems existed were put forwarded and the necessity of interface compatibility improvement,the uniform dispersedness of nano-particles in base material and stability control were pointed out.At the same time,further research direction was also proposed.

未经表面处理的纳米TiO2颗粒表面还具有亲水性，不能很好地分散在有机基质中，这大大降低了超细颗粒的实际应用效果；同时在有机高分子树脂中难以均匀分散，界面上会出现空隙，当空气中的水分进入空隙中就会引起界面高聚物的降解、脆化，导致材料性能下降。

Surface modification of nanoparticle is a general approach to prepare nanocomposite with good dispersion of nanoparticles in polymer matrix.

为制备分散均匀良好的复合材料，可藉由奈米无机物的表面改质，使其可在有机相高分子材料中分散均匀。

Carbon nanotubesare one kind of excellent renforcing nanomaterials to improve the properties of various polymer materials,while the critical issue is the dispersion of CNT in polymer matrix or solvents.

目前碳纳米管在高分子复合材料领域的研究十分活跃，通过添用碳纳米管改善纤维材料的力学和导电性能，具有很好的研究和应用价值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。