Study of Advanced Functional Coatings and their Applications

目前的涂料包括传统的液体涂料和更环保的粉末涂料。它们广泛应用于工业和日常生活中。近几十年来，终端应用对不同涂层功能的需求日益引起人们的关注，并促使持久透明功能涂层的制备变得相当复杂。更重要的是，功能性粉末涂料几乎是一个新兴的研究领域，随着越来越多的关注转向绿色涂料，功能性粉末涂料面临着同样的挑战。*******在过去的几年里，人们对功能涂料进行了大量的研究，一些涂料制造商已经将具有各种功能的涂料商业化。在这些研究和产品中采用的典型方法是将颗粒形式或液体形式的功能剂加入成膜系统中以获得所需的功能。然而，常用的技术存在许多问题，如寿命差、机械强度低和膜性能不理想的变化。这些问题的主要根源是由于大部分涂层系统中功能剂的分散性、相容性和粘结性差。*******对于采用颗粒型功能剂的功能涂料来说，成膜系统的分散性和与成膜系统的结合不理想仍然是目前存在的问题，阻碍了许多功能涂料的应用。对于液态功能剂，药剂与成膜材料之间的相容性问题极大地限制了药剂的选择范围和允许剂量。*******申请人提出了一种平台型方法，可以为大多数类型的功能涂料提供这些问题的解决方案。从他早期工作的结果来看，这种方法比目前的艺术状态有优势。对于采用颗粒状功能剂的涂层，新型流态化等离子体处理方法在颗粒分散性、相容性和剂与成膜材料之间的化学键合方面表现出无与伦比的增强；对于使用液态功能剂的涂料，多孔基涂层方法被证明是一种有效的方法，可以突破可选择功能剂范围和允许剂量的限制

Current coatings include conventional liquid versions and more environmentally friendly powder coatings. They are widely used in industry and in daily life. In recent decades, the need for different coating functions from the end applications has drawn increasing attention and prompted Rather intricate in fabricating durable transparent functional coatings. More importantly, functional powder coating is almost a virgin research field, and is face the same challenges along with more and more focuses being moved onto the green type of coating.*******There have been a large number of researches regarding functional coatings in the past few years and some coating manufacturers have commercialized coatings with various functionalities. Typical approaches employed in these researches and products are to incorporate functional agents, in particulate form or in liquid form, into the film-forming systems to attain the required functionalities. However, the commonly used techniques suffer from many problems such as the poor longevity, low mechanical strength and undesirable alternations to the film properties. The main root-causes of the problems are attributed to the poor dispersion, compatibility and bonding of the functional agents to the bulk of the coating systems.*******For functional coatings employing particulate form functional agents, unsatisfactory dispersion in and bonding to the film-forming system still remain as problems up to date, hampering the application of many functional coatings. For liquid form functional agents, compatibility issues between the agents and the film-forming materials greatly limit the range of selectable agents and the allowable agent dosages.*******The applicant proposed a platform-type approach which could provide solutions to these problems for most types of functional coatings. From the results of his early work, this approach demonstrated advantages over the current state of art. For coatings employing particulate-form functional agents, a novel fluidized plasma treatment of the agents showed incomparable enhancements in particle dispersion, compatibility and chemical bonding between the agents and the film-forming materials; for coatings using liquid-form functional agents, a porous-base-coat approach was proven to offer an efficient way to break the limits to the range of selectable functional agents and the allowable agent dosages.***