水性

Water-borne polyureyhane has on the environment, pollution-free, non-combustible, innoxious, wide adaptability.

水性聚氨酯粘合剂具有对环境无污染，不可燃、无毒，适应性广等优点。

Epoxy resin and polyether, dimethylolpropionic acid and toluene Isocyanuric ester II Preparation of waterborne polyurethane coatings.

环氧树脂与聚醚、二羟甲基丙酸和甲苯二异氰酯反应制备水性聚氨酯涂料。

A novel polyurethane dispersion with high gloss and excel le nt mechanical properties was prepared with polyether glycol and isophorone diiso cyanate as raw materials and castor oil and 3-aminopropyl-triethoxysilane as cross-linking agents.

探讨了胶膜光泽度与亲水基团及蓖麻油含量的关系，同时研究了氨丙基三乙氧基硅烷的加入对材料的机械性能和耐水性产生的影响。

Waterborne aliphatic polyurethane dispersion was synthesized by the reaction of epoxy resin with isophorone diisocyanate, dimethoxypropionic acid and polyester-diol.

以异佛尔酮二异氰酸酯、聚酯二元醇和二羟甲基丙酸作为主要原料合成了脂肪族水性聚氨酯分散体，并用环氧树脂对其进行了改性。

Hydrophobic-hydrophilic macroporous polydivinylbenzene/polyacrylethylenediamine interpenetrating polymer networks (PDVB/PAEM IPN) were prepared by the sequential suspension polymerization method. These were composed of two networks, of which one was hydrophobic and the other was hydrophilic. The objective of this work was to study the adsorption thermodynamics and adsorption kinetics of this hydrophobic- hydrophilic IPN. The focus was on adsorption isotherms of vanillin at different temperatures, and these fit well into the Freundlich adsorption isotherm. The isosteric adsorption enthalpy, adsorption Gibbs free energies and the adsorption entropy could be calculated according to thermodynamic functions.

采用分步悬浮聚合法制备了具有疏水性能的聚二乙烯基苯(polydivinylbenzene， PDVB)为第一网，具有亲水性能的聚丙烯酰乙二胺(polyacrylethylenediamine， PAEM)为第二网的疏水／亲水大孔聚二乙烯基苯／聚丙烯酰乙二胺互穿聚合物网络(interpenetrating polymer networks， IPN)，研究这类疏水／亲水IPN组成的树脂对吸附质的吸附热力学和吸附动力学；测定了该树脂对香兰素在不同温度下的吸附等温线，吸附等温线符合Freundlich等温吸附方程，利用热力学函数关系计算出了吸附焓、自由能和熵变。

The styrene-acrylic emulsion was synthesized using monomer styrene,butyl acrylate,2-hydroxy propylacrylate and monobutyl itaconate.

采用苯乙烯、丙烯酸丁酯及丙烯酸-2-羟基丙酯作主单体，衣康酸单丁酯作功能单体合成了苯丙乳液，比较了功能单体MB I及丙烯酸对苯丙乳液性能(包括耐水性、表面张力、钙离子稳定性等)的影响，用透射电镜观察了乳胶粒子形态。

It was helpful that the application range and development future of the itaconic epoxy resin could be expanded.

希望能够拓展衣康酸环氧酯树脂的应用范围，为水性高分子涂料和水溶性高分子电解质产品的研究带来一些有益的启发。

The hydrophobic adsorption film gradually grows and passivates on jamesonite from -78 mV to 42 2 mV.The electrode process of jamesonite at 522 mV is quite controlled by the reaction that is depended on ion diffusion.When the electrode potential is over 622 mV,the hydrophilicity on jamesonite becomes strong due to covering an amount of PbSO4 from the electrochemical reactions.

当电极电位为-78 mV～422 mV，矿物表面疏水性膜逐渐增长并产生钝化作用；当电极电位为522 mV时，电极过程完全由离子扩散决定的电化学反应所控制；当电位大于622 mV后，电极反应产生大量的PbSO4沉淀，并覆盖在电极表面，矿物表面的亲水性强。

The strang water conducted karstic collapse column is the important passage ,which should be attached importance to and studied on .

导水性极强的岩溶陷落柱是底板岩溶裂隙水的重要充水通道，必须加以重视和研究。

The effect of the content of the keto group and the hydrazine group and the crosslinking reaction on the emulsions was discussed.

探讨了肼基、酰胺基的含量对水性聚氨酯乳液、苯丙乳液性能的影响以及交联反应对漆膜性能的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。