活性剂

The structural feature and physicochemical property of the new generation of surfactants［J］.

新型表面活性剂的结构特点与物化性能［J］。

Control of QR barnyardgrass was also studied in this paper. Butachlor, cyhalofop-butyl, oxyfluorfen, pretilachlor, mefenacet and oxyfluorfen plus quinclorac gave adequate control of QR barnyardgrass, however, butachlor in combination with quinclorac and quinclorac plus piperonyl butoxide or agrco were not effective for control of QS barnyardgrass.

本论文还对QR稗草的治理进行了研究，结果表明：丁草胺、千金、果尔、扫茀特、苯噻草胺单剂及果尔和二氯喹啉酸混用能有效的防治二氯喹啉酸抗性稗草，而丁草胺和二氯喹啉酸混用、二氯喹啉酸和增效醚及二氯喹啉酸和表面活性剂蜡混用不能有效的防治QR稗草。

Some homologs were synthesized from polyglycerols with different polymerization degree. The polyglycerol dodecyl ether had good capacity of reducing surface tension.

并利用自制的不同聚合度的甘油，合成了一系列同系物产品，该新型非离子表面活性剂具有良好的降低表面张力的能力。

In SDS-PAC system, the hydroxide groups bridging effect of the polymolecular hydroxide complex ion is the main mechanism of surfactant flocculation.

SDS-PAC体系中，多核羟基络离子在胶束之间的羟基架桥作用，是表面活性剂混凝沉淀的主要机理。

The paper shows the ideal synthetic condition for preparing the novel amphoteric surfactant of monoalkyl phosphate by long-chain fatty acid, diethanolamine and polyphosphoric acid .

本文研究了以脂肪酸、二乙醇胺、聚磷酸为原料合成一种新型的两性磷酸酯盐表面活性剂的方法。

Amphoteric surfactant ; monoalkyl phosphate ; polyphosphoric acid ; softness ; antistatic agent ; synthesis ; pro-perty

两性表面活性剂；磷酸单酯盐；聚磷酸；柔软性；抗静电性；合成；性能

The organic montmorillonite VC18-MMT was prepared by the exchanging inorganic cations with vinylbenzyldimethyloctadecylammionun chloride which could be co-polymerized with styrene.The predispersion of VC18-MMT was realized via sonicating the suspension of the montmorillonite particles in emulsifier solution,and then the styrene was added into the system and the in situ emulsion polymerization was carried out to prepare PS/VC18-MMT nanocomposites.

以可与苯乙烯发生共聚的阳离子表面活性剂乙烯苄基二甲基十八烷基氯化铵为插层处理剂改性蒙脱土（VC18-MMT），有机蒙脱土在超声波强剪切作用以及乳化剂作用下预分散在乳化剂溶液中，然后引入苯乙烯单体进行原位乳液聚合制备聚苯乙烯/蒙脱土纳米复合材料。

The activty of SOD in vesicle solution is then determined. But still no apparent superactivty is found due to the following reasons: 1. The lowered dielectric constant reduces not only the self-oxidation rate of pyrogallic, but also the activity of SOD; 2. There are no efficient enough interaction between vesicles and SOD.

在上述体系中进行的SOD的活性研究中，没有发现表观超活性，估计是两方面的原因：一是囊泡周围低的介电常数同样也降低了SOD酶的活性，二是由于表面活性剂浓度较小，仅为0.5％左右，使得囊泡体积分数较小，不能与SOD酶发生充分有效的结合。

Recently, Shelnutt and co-workers obtained discrete porphyrin nanosheets reprecipitated from their solutions;[3] Sathish and co-workers constructed hexagonal C60 nanosheets using a liquid–liquid interfacial precipitation method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline nanosheets of polycyclic aromatics using a surfactant- assisted reprecipitation and a physical vapor transporting method, respectively; and Zhang and co-workers suggested that molecules with intramolecular charge-transfer dipole moments could be grown into quasi-2D nanostructures.

近年来，Shelnutt及其同事由他们的溶液再沉淀获得了离散的卟啉纳米片[3]； Sathish和他的同事用液－液界面沉淀法构建了六边形的C60纳米片[4]； Yao[5]和Hu[6]分别用表面活性剂辅助的再沉淀和物理气相输运法制备了多环芳烃的单晶纳米片；而Zhang和他的同事提出，具有分子内电荷转移偶极矩的分子可以生长成准二维的纳米结构[7]。

Recently, Shelnutt and co-workers obtained discrete porphyrin nanosheets reprecipitated from their solutions;[3] Sathish and co-workers constructed hexagonal C60 nanosheets using a liquid–liquid interfacial precipitation method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline nanosheets of polycyclic aromatics using a surfactant- assisted reprecipitation and a physical vapor transporting method, respectively; and Zhang and co-workers suggested that molecules with intramolecular charge-transfer dipole moments could be grown into quasi-2D nanostructures.

最近，舍纳特和同事获得离散卟啉薄片reprecipitated其解决方案； [3] Sathish和同事构建六角 C60的薄片采用液液界面沉淀方法； [4]姚明集团[5]和胡[6]准备singlecrystalline 多环芳香烃薄片的使用表面活性剂再沉淀和辅助物理气相传输法分别，张和同事建议随着分子内电荷转移分子偶极时刻可以发展成为准二维纳米结构。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐