水凝胶

The kinetics model of colloidal particulates aggregation in gelation was built up based on the viscosity change.

根据粘度的变化建立了凝胶化过程中拟薄水铝石胶粒生长的动力学模型。

SEM result showed that the sample had uniform phase distribution and smooth surface at dried state as well as interpenetrate network structure at hydrogel state. It was seen from the swell ing behavior curves that groups T1, T2 and T3 swelled rapidly within 10-30 minutes, and formed elastic composite hydrogel pipes. In addition, the expanding ratio of inner and outer diameter of the tube was 20%-30% and 100%-120% with swell ing, respectively. The equil ibrium water content of the hydrogel pipes increased with increase of collagen composition. Three groups of samples were immerged in PBS solution contained 2 mg/mL lysozyme at 37 for 1 month, their nozzle cracked, their wall became thin and more transparent. And also, there was small floc deposited on the tube surface.

扫描电镜观察到液氮脆断的人工泪小管内部成分分布均匀，内外壁表面平整，冷冻干燥的人工泪小管断口呈凝胶态的互穿网络结构。3 组不同成分的人工泪小管在PBS 溶液中浸泡30 min 后均快速吸水溶胀，外径扩大100%～ 120%，内径扩大20%～ 30%，并且随胶原含量增高，溶胀速度增快，平衡溶胀率增大。3 组人工泪小管在37℃含2 mg/mL 溶菌酶的PBS 液中浸泡1 个月后，表面有部分细小絮状物，管口开裂，管壁变薄，透明度增加。

This artice reviews the production technology,condition and performance of a naturally environmental protection macromolecule water-sol ubility glue powder,which is compounded by dragon glue,inorganic gel,meliorative plant fibre powder and PVA-9 powder etc.

概述了由龙胶，无机凝胶及改性植物纤维粉，PVA—9 粉等材料复合而成的一种天然环保分子水溶性胶粉的生产工艺，性能，并着重介绍其在建材领域中的应用，揭示了该技术项目正成为当今人们投资的热点。

Theoretical analyses indicate that the reduction of internal relative humidity or so_called self_desiccation of HPC may be mainly caused by the increase in the mole concentration of soluble ions in HPC and the fractions of gel water, absorbed water and interlayer water in the total amount of evaporable water.

理论分析表明，混凝土中可溶离子浓度的增大，及凝胶孔水、吸附水、层间水在总可蒸发水量中的比例增大是导致HPC自收缩或自干燥的主要机理。

Influence of deposing condition on the grain size, crystal structure and surface properties of nano-TiO_2 was investigated; the existing position and action of TiO_2 in oil/water system was also studied. Results of photographs show that nano-TiO_2 can enter the oil/water interface and well dispersed, a solid film is formed and well stability.

3采用溶胶-凝胶法及掺杂调制技术制备了纳米TiO_2光催化剂，考察不同的热处理条件对二氧化钛(TiO_2)纳米粒子的晶粒尺寸、晶体结构、表面性质的影响，并研究了纳米TiO_2在油／水体系中的形态与存在形式，显微图像观察结果表明，TiO_2纳米粉可以进入油／水界面，在油／水体系中具有较好的分散性能和界面性质，形成一层固体膜，并且具有很强的稳定性。

The preparation process of Al2O3 thin film is represented by the sol-gel method, in which Al(NO3)39H2O is used as precusor, water and HNO3 as solvent and peptizing agent, respectively.

以无机盐Al(NO3)39H2O为先驱体、水为溶剂，加入不同浓度的胶溶剂HNO3，采用溶胶－凝胶法制备了勃姆石溶胶。

A water molecular gel can be formed by the aggregation and self- assembly of gelator 4,4-bissteaiylarnide diphenyl ether at very low concentration. The microcosmic morphology, thin fiber-like structure, was observed from atomic force microscope and TEM of the gels.

通过原子力显微镜以及透射电子显微镜对水分子凝胶的微观形态进行了表征，表明凝胶因子可以在水中聚集、自组装成延伸的螺旋缠绕细纤维结构，并且得出了纤维束的平均直径在100nm左右，平均孔径在100nm左右。

Konjac glucomannan has a strong swelling capacity, water absorption volume is its own weight of glucomannan 80 ~ 120 times, its aqueous solution has a strong bond and gel nature, soluble in cold water can form viscous solution, after alkali after treatment the formation of irreversible elastic gel, or konjac tofu.

魔芋葡甘聚糖具有很强的膨胀能力，吸水率量是其自身重量葡甘聚糖80120倍，其水溶液具有很强的债券和凝胶性，溶于冷水可以形成粘稠的解决方案，经过碱处理后形成不可逆弹性凝胶，或魔芋豆腐。

In contrast, Al2TiO5 can not be synthesized at low temperatures using methanol or tert-butyl alcohol as oxygen donor due to their high chemical reactivity resulting in hydrolysis reaction.

以TiCl4和无水AlCl3为原料，以无水低碳醇为氧供体通过非水解溶胶-凝胶法低温合成了钛酸铝，研究了无水低碳醇种类及用量对钛酸铝合成反应的影响。

When captured and held by the tail, they escape by secreting the fibrous slime, which turns into a thick and sticky gel when combined with water, and then cleaning off by tying themselves in an overhand knot which works its way from the head to the tail of the animal, scraping off the slime as it goes.

当被抓住尾部时，它们会利用分泌纤维状黏液来进行逃脱，遇水混合变成粘稠的凝胶，并通过将自己打结来将这些凝胶刮干净。

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