稳定剂

When purify carries the suspension colloid grain of negative electric charge in natural raw water, it is OK that its element linear grows the positive electrical charge that contains in catenary to be opposite remove electric sex to counteract the double function that reachs adsorption to bridge at the same time, and water-solubility of starch of this kind of modified is good, burnt viscosity is stable, cast impose kind agile, it is a kind of function exceedingly good organic, inorganic and compound high polymer garrulous coagulates agent.

在去除天然原水中带负电荷的悬浮胶体颗粒时，其分子线性长链中所带有的正电荷对可以同时起到电性中和及吸附(物质表面吸住周围介质中的分子或离子现象)架桥的双重功能，而且这种改性淀粉水溶性好，糊粘度稳定，投加方式灵活，是一种性能优异的有机-无机复合高分子絮凝(使液体中悬浮微粒集聚变大或形成絮团，从而加快粒子聚沉，达到固-液分离的过程)剂。

Manufacture of high strength and quick drying starch adhesive at room temperature;2. The quick drying adhesive was developed by adding different driers.

以玉米淀粉为原料，采用氧化法，在对淀粉粘合剂粘度影响因素考察的基础上，运用正交设计，用L_9(3)~4正交表安排实验，得到各因素对粘度影响的主次顺序，以及最佳工艺条件，并在此基础上，分别加入不同快干剂，研制出性能稳定、干燥速度快的淀粉粘合剂，以满足高速瓦楞纸板生产线的要求。

In this report, half-esterification between these pendent hydroxyl groups of hydroxyl-PU and maleic anhydride could lead to new pendent groups, carboxylic groups. These highly polar carboxylic groups in the side chain of PU could play the role of internal emulsifier. They had self-dissociation ability in the water or were neutralized first by appropriate amount of base. Then, PU bearing carboxylic group could dispersed steadily in the water, named aqueous-based polyurethane dispersion.

在本论文中，利用原来亲油性Hydroxyl PU主链段上悬挂的羟基经由与琥珀酸酐的半酯化(Half-esterification Reaction)反应后，使PU在侧链上悬挂具有强极性的羧酸基，其可作为聚胺酯分子中的内乳化剂，羧酸基能在水相中自身解离产生离子或加入适量碱使之中合，使聚氨酯高分子能够稳定分散於水中，即所谓水性PU分散液(Aqueous-based Polyurethane Dispersion)。

In addition, TMA also can be used for thermoset polyester powder coating resin and epoxy resin crosslinking agent, can be used for dispersion carbamate acetate polyester in its ambient temperature of 70 , the nature of stability and with a high gloss, quick-drying, wear and many other features.

另外，偏酐还可以作热固性粉末涂料聚脂树脂和环氧树脂的交联剂，可用于分散性氨基甲酸乙脂聚脂中，使其在环境温度为70℃时，性质稳定，并具有高光泽度、快干、耐磨等多种特性。

Stable time of the suspension, the selection of emulsifyer, repeatability of absorbance and detection limit were studied.

对悬浮液的稳定时间、乳化剂的选择、吸光度重复性及检出限进行了考察。

S .R.I .S are designed to help keep serotonin ,a brian chemical at a continue's level.

选择性5-HT再摄取抑制剂的发明是用来帮助将血液中的复合胺，大脑中化学物质维持在一个持续稳定的水平上。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。