超声辐照乳液聚合研究进展

综述了超声辐照乳液聚合的特点，聚合成核机理，影响因素及反应动力学特点，简要介绍了超声辐照无皂乳液聚合，超声辐照微乳液聚合，超声辐照乳液共聚和纳米粒子存在下的超声辐照乳液聚合。     

Ultrasonic‐assisted dyeing: II. Nylon fibre structure and comparative dyeing rate with reactive dyes

Comparative dyeing kinetics of nylon‐6 fibre with different reactive dyes using conventional and ultrasonic conditions are presented. The time/dye‐uptake isotherms are revealing the enhanced dye‐uptake in the second phase of dyeing (diffusion phase). The data of dyeing rate fit well with the integrated form of the first‐order rate equation and values of dyeing rate constant and half‐time of dyeing are discussed. Ultrasonic efficiency in accelerating the dyeing rate relative to conventional heating was examined for all dyes used to show that ultrasonics are most effective for a dyeing system which has difficulty in achieving high dye‐uptake. To clarify the role of fibre fine structure and whether it is affected during dyeing with ultrasonic waves, time‐dependent ultrasonic pre‐treatment of nylon‐6 fibres and its effect on the colour strength obtained is presented. X‐ray diffraction studies on nylon‐6 fibres conventionally and ultrasonically pre‐treated have shown that the percentage of fibre crystallinity has become higher in ultrasonically treated fibre in comparison with that of conventionally treated. Although the increased crystallinity of the fibre, which occurs simultaneously during the ultrasonic dyeing process, would retard dye uptake, it seems that the enhanced effect of power ultrasonic is high enough to overcome this side‐effect on the fibre. © 2003 Society of Chemical Industry     

超声化学法合成羟基磷灰石-明胶复合材料

以Ca（NO3）2,（NH4）2HPO4,明胶和戊二醛为原料,用超声化学法合成了尺寸约为30nm×100nm,平均长径比在2-3,分散性良好的羟基磷灰石-明胶复合材料。对比研究了超声化学法与传统化学沉淀法对复合材料结晶性能和力学性能的影响。结果表明,与传统化学沉淀法相比,超声化学法可以在较短时间内显著提高羟基磷灰石的结晶度、改善结晶状态,使复合材料的抗拉强度和抗压强度分别达到52．4MPa和56．8MPa。     

超声化学制备纳米材料的研究进展

结合相关的理论基础，综述了超声化学制备纳米材料的研究进展。主要涉及采用和发展多种前驱物声化制备无机纳米材料，特别是超声电沉积法制备纳米粉体新技术及超声制备无机-有机纳米复合材料等的进展；并展望了今后的研究方向。     

超声化学法合成金属硫族半导体纳米材料

随着纳米科技的发展,合成纳米材料的新方法层出不穷。超声化学方法合成纳米材料近年来得到了飞速的发展,引起了科学界越来越多的关注。本文从超声化学的基本原理和特点出发,简要介绍了近年来超声化学法在水、有机溶剂及微乳液中合成金属硫族半导体纳米材料和复合金属纳米材料的进展。在水溶液中超声化学制备金属硫族半导体纳米材料方便、简单,而在有机溶剂和微乳液中制备,能更好地控制粒子的尺寸和形貌。     

超声化学法制备无机纳米材料的研究进展

由于纳米材料具有许多不同于本体材料的优良性能,因此纳米材料的制备与应用是近年来材料科学研究的热点。超声化学法是一种制备特异性能纳米材料的有效途径。超声波对反应体系的作用主要表现在:利用超声能量进行分散,利用空化过程进行高温分解,利用剪切破碎机理对颗粒尺寸进行控制,利用机械搅动影响沉淀的形成过程。本文中介绍了超声化学法制备纳米材料的原理,并详细介绍了超声化学法在制备纳米金属及合金、纳米金属氧化物及其它纳米金属化合物方面的应用。     

用碘释放法研究双束脉冲超声辐照的空化产率增强效应

本文首次采用碘释放法发现双束脉冲超声辐照的空化产率增强效应。这一发现无疑对声空化效应的基础研究和声化学技术发展具有重要的意义。     

声化学氧化在污水净化中的研究进展

对近年来声化学氧化在污水净化中的研究进展作了比较全面的综述，介绍了声化学氧化反应的原理，特点，影响因素以及目前所取得的研究成果。超声空化作用是声化学反应的主动力，影响声化学反应的主要因素有：超声功率强度，超声波频率，声能密度，物系性质，反应器结构等，实用性和协同性（与其它水处理技术联合）是声化学氧化今后主要的两个研究方向。     

Ultrasonically enhanced persulfate oxidation of polyethylene surfaces

The ultrasonically enhanced oxidation of polyethylene surfaces by potassium and ammonium persulfates is described. The use of ultrasound allows significant levels of surface modification to be achieved using these oxidizing agents under mild conditions. Changes in the water contact angle and attenuated total reflection infra-red spectra were used to follow the changes in surface chemistry. Variation of conditions such as sonication time, sound intensity and reaction temperature allowed control over the extent and nature of the surface oxidation.     

超声波化学法制备无机粉体的研究进展

随着科技的发展,合成无机粉体的新方法层出不穷。近年来,超声化学方法合成无机材料得到了飞速的发展,引起了科学界越来越多的关注。本文从超声化学的基本原理和特点出发,简要介绍了近年来超声化学法在无机粉体合成中的研究进展。在化学方法的基础之上结合超声波的特色,在有机溶剂和微乳液中制备无机粉体,能更好地控制粒子的尺寸和形貌。