水性

The silicon-acrylic latices with core-shell structures were prepared by means of a"two-stage"emulsion copolymerization. The effect of constituents and proportion of core and shell parts on the properties of latex film were investigated, and their applications in water-borne wood coatings and elastic coatings were explored. The results indicate that wood coating and elastic silicon-acrylic coatings with good performance and zero VOC content can be prepared by suitable design of structure of silicon-acrylic latex particles.

通过&两段&乳液聚合的方法合成了具有芯／壳结构的硅丙乳液，研究了芯／壳乳液粒子结构及组成比例对聚合物漆膜性能的影响，并探讨了芯／壳乳液在水性木器涂料及弹性涂料中的应用，结果表明，通过对硅丙乳液粒子的结构设计，可以获得性能优良的零VOC含量的木器涂料和弹性硅丙涂料。

Compared with conventional surfactants, using the polymeizable surfactants selected from series B or D, some of the latices stabilities are improved. The films made from polymeizable surfactants exhibit a better water resistance than made from conventional surfactants.

相对于传统乳化剂，B、D系列可聚合乳化剂得到的聚合物乳液部分稳定性得到了提高，成膜后的耐水性得到了很大的提高。

Compared with the conventional emulsion polymerization system,the latices that are of monodispersed latex particles of 0.5m m in diameter,low viscosity and high storage stability are prepared by emulsifier-free emulsion polymerization.

实验结果表明，与常规乳液聚合体系相比，所获得的无皂乳液的乳胶粒大小均一，粒径在0.5m m左右，粘度低，储存稳定；共聚物呈完全无规立构，玻璃化转变温度均在25℃附近，拉伸强度明显增大，耐水性和剥离强度显著提高。

Compared with the conventionalemulsion polymerization system in the presence of sodium dodecyl benzene sulfonate, the latices prepared by emulsifier-free emulsion polymerization have much more narrow distribution of latex particle sizes (0.2um in diameter), better resistance to electrolytes, pH, freeze-thaw, and better mechanical stability. Not only the tensile strength of the copolymers prepared by this method is obviously increased, but also the water resistance and adhesion capacity are significantly enhanced. On the other hand, the TG results indicate the copolymer has lower thermal stability than conventional copolymer.

实验结果表明，与传统乳液聚合体系相比，所获得的无皂乳液的乳胶粒子大小均一，粒径在0.20um左右；乳液具有优异的稳定性，不受酸碱度、电解质和低温冷冻的影响；附着力和粘接强度明显提高；成膜后显示较高的耐水性；但TG表明乳胶膜热稳定性有所下降。

This study used floating macrophytes（Eichhornia crassipes,Pistia stratiotes,Lemna perpusilla and Salvinia natans） to remove the heavy metals from the prepared solution containing metal effectively.

摘要 水生植物具有吸收及累积重金属的特性，故本研究利用浮水性植物（布袋莲、大萍、青萍及槐叶苹）处理含重金属之溶液使其含量能有效降低。

It is researched that the global structure of modified lignosulphonate is dispersive and less cluster structure to benefit the adsorption efficiency, the adsorption capacity and to improve the lyophobic surface of coal;. the film thickness is double by the comparison of lignosulphonate and modified lignosulphonate in the respect of the space steric hindrance.

研究表明：改性木钠球形结构更加分散，簇状结构明显减少，对提高吸附效率，增加吸附量，极大程度地改善煤表面的疏水性极为有利；改性木钠的空间位阻作用与未改性木钠相比较，其表面吸附膜厚度增加1倍左右。

The effects of many factors in the wet end on drainage and retention of PEO/attapulgite system: During the scope of 2-12, pH has no effect on drainage, and retention ratio lower in acidic conditions and higher in neutral or alkaline conditions. There were some improvement on slurry's drainage and some impairment on retention efficiency for the existence of inorganic salts. Lignosulphonate had no effect on drainage and made retention ratio decrease 5-8%; lignosulphonate and xylan had no effect on drainage and made retention ratio decrease a little. 5 .Attapulgite could be modified by intercalation.

纸机湿部系统的影响因素对PEO／凹凸棒粘土助留体系的助留助滤效果的影响表现为：pH值在2-12范围内，对助滤效果是没有影响的，使助留效果在酸性条件下较差，而在中碱性条件下较好；无机盐的存在使浆料的滤水性能有一定的改善，使助留效果有所削弱；木质素磺酸盐对助滤效果是没有影响的，使留着率下降了5—8％；木质素磺酸盐与聚木糖对助滤效果也是没有影响的，使留着率略有下降。

It improves the quality of meibomian gland secretion and stimulates aqueous tear secretion by repairing tear secretion in dysfunctional lacrimal glands and decreasing lacrimal gland apoptosis.

它提高质量，睑板腺分泌，并刺激水性泪液分泌修理泪液分泌失调泪腺和降泪腺凋亡。

Both hydrophilic and hydrophobic volatile organic compounds and mephitic compounds in the odor gas can be removed effectively by the synergistic reaction of the bacteria and fungi in the combined bioreactor.

复合生物除臭反应器克服了单一生物除臭反应器的缺陷，利用不同微生物的协同作用，能有效地将臭味气体中的亲水性和疏水性挥发性有机污染物和恶臭物质同时去除，达到净化和除臭的目的。

The combined bioreactor, which consists of a bacteria zone and a fungi zone, can overcome the shortcoming of the traditional bioreactor. Both hydrophilic and hydrophobic volatile organic compounds and mephitic compounds in the odor gas can be removed effectively by the synergistic reaction of the bacteria and fungi in the combined bioreactor.

联系单位：厦门城市环境研究所联系人：崔胜辉电话： 0592-2656367 传真： 0592-2659290 5 A combined bioreactor for odor gas removal 复合生物除臭反应器克服了单一生物除臭反应器的缺陷，利用不同微生物的协同作用，能有效地将臭味气体中的亲水性和疏水性挥发性有机污染物和恶臭物质同时去除，达到净化和除臭的目的。

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。