国外建筑涂料新进展

本文在简要介绍了工业发达国家建筑涂料发展概况后,从粉末涂料、节能涂料、超耐候氟树酯涂料、丙烯酸硅酮齐聚物涂料、再生强度涂料等方面重点介绍了工业发达国家建筑涂料的新进展。     

我国特种涂料发展前景看好

据估计。今后我国特种涂料在涂料总产量中所占的比重将进一步增加。据专家预测,2010年,我国特种涂料产量将达到80万～120万吨,环保节能的多功能特种涂料将有巨大的发展空间。国民经济的高速发展,要求有特殊性能的优质涂料与之配套。特种涂料的应用领域不断被开拓,各种结构设施、仪器仪表、高精产品等表面工程对表面涂装提出了更高要求。航天涂料、航空涂料、隐身涂料、防腐蚀涂料、防污涂料、耐高温涂料、防火涂料、示温涂料和核电涂料等各显神通,相关企业已在生产应用方面积累了一定的经验。。防腐蚀涂料市场已成为知名大公司角逐的对象,金属结构防腐、海洋设施及船舶涂料、集装箱涂料、桥梁、隧道和地下工程用防腐涂料将迎来发展机遇。航空涂料也有新的机遇,中国要实现从航空大国向航空强国的转变,需要各种高性能的航空涂料。但目前中国的特种涂料还达不到航空工业的要求,国外又往往进行技术封锁,中国急需自行开发高性能航空涂料。     

纳米改性涂料的发展及应用

在涂料中加入功能型纳米材料,不仅可以改善涂料的传统性能,而且赋予了涂料许多新的性能.纳米改性涂料使得涂料的常规力学性能得到了很大提高,并且可以提高涂料的耐老化、耐腐蚀、抗辐射等性能.     

新型建筑涂料的发展及应用

对新型建筑涂料的发展方向进行了论述,并进行了建筑涂料生态化研究,归纳总结了粉末型建筑涂料、液体无溶剂型建筑涂料及外墙用弹性建筑涂料的特点和施工工艺,以促进新型建筑涂料的推广应用。     

功能纳米涂料的研究进展

随着科技的快速发展,传统涂料的功能难以满足军工、医疗、建筑等领域的需求。将纳米材料与纳米技术应用于涂料中,不但改善了涂料的性能,而且开发出功能纳米涂料。本文综述了功能纳米涂料的研究进展,主要包括纳米抗菌涂料、纳米隔热涂料、纳米超疏水涂料、纳米超亲水涂料、纳米隐身涂料、纳米抗老化涂料。最后,总结功能纳米涂料存在的问题及对未来发展进行展望。     

保护涂料对混凝土渗透性能的研究

利用AUTOCLAM和RCM方法研究了两种混凝土保护用涂料(分别属于成膜型涂料和渗透型涂料)的性能,测试了涂刷涂料后混凝土试件吸水性、透水性、以及氯离子渗透性,定量说明两类混凝土结构防护用保护涂料对混凝土抗渗透能力的影响。结果表明:涂刷涂料的混凝土的抗水渗性能和抗氯离子渗透性明显比没有涂刷涂料的混凝土好,渗透型涂料和成模型涂料的抗氯离子渗透性相差不大,但渗透型涂料比成膜型涂料的抗水渗透性能优越。     

我国防火涂料应用中存在问题分析研究

对我国防火涂料的生产单位、使用单位、施工单位、监督管理单位存在的主要问题进行了探讨。具体分析了钢结构防火涂料、饰面型防火涂料、电缆防火涂料存在的问题，提出了解决防火涂料使用中存在问题的相应对策。     

功能性建筑涂料的应用与发展

论述了功能性建筑涂料如防火涂料、防水涂料、防腐涂料、防霉抗菌涂料及隔热保温涂料等的应用状况及发展趋势     

外墙用隔热涂料的应用现状与发展

隔热涂料分为阻隔性隔热涂料、反射隔热涂料及辐射隔热涂料,论述了常用填料,颜料的种类及作用,对成膜基料作了概括,另外分析了隔热涂料的发展重点和趋势.     

国外功能性建筑涂料别树一帜

近年来,国外建筑涂料已经成为涂料中产量最大的品种。发展较快的地区主要分布在美国、日本、西欧及亚太地区,其中功能性建筑涂料别树一帜,市场前景看好。近年来,国外功能建筑涂料发展很快,主要有防火涂料、防水涂料、防霉防虫涂料、防锈防腐涂料、防静电涂料、消(吸)音涂料、隔热涂料及弹性功能涂料等品种。防火涂料随着现代化建筑尤其是高层建筑火灾的不断发生,给人民的生活和经济造成了巨大损失,引起了各国政府对建筑防火的高度重视,纷纷制定了相应的标准和法规。因此,防火涂料的研究与应用近年来迅速发展,如德国的BIO-FAX2000年3000高…     

Evaluation of low-VOC latex paints

Four commercially available low-volatile organic compound (VOC) latex paints were evaluated as substitutes for conventional latex paints by assessing both their emission characteristics and their performance as coatings. Bulk analysis indicated that the VOC contents of all four paints tested were considerably lower than those of conventional latex paints. Low VOC emissions were confirmed by small chamber emission tests. However, significant emissions of several aldehydes, especially formaldehyde which is a hazardous air pollutant, were detected in emissions from two of the four paints. American Society for Testing and Materials (ASTM) methods were used to evaluate the hiding power, scrub resistance, washability, dry to touch and yellowness index. The results indicated that one of the four low-VOC paints tested showed performance equivalent or superior to that of a conventional latex paint used as control. It was concluded that low-VOC latex paint can be a viable option to replace conventional latex paints for prevention of indoor air pollution. However, paints marketed as "low-VOC" may still have significant emissions of some individual VOCs, and some may not have performance characteristics matching those of conventional latex paints.     

乳液pH值对乳胶粉及其涂料分散涂膜的影响

采用喷雾干燥法制备可再分散苯丙乳胶粉,探讨喷雾乳液pH值对苯丙乳胶粉及其再分散乳液性能的影响,并分析其作用机理;以不同pH值喷雾乳液制备的乳胶粉为成膜物质配制干粉涂料,研究各涂料样品的施工稳定性,并观察漆膜断面微观形貌.结果表明:随着喷雾乳液pH值增大,乳胶粉的再分散性提高、堆积密度增大,再分散乳液粒径变小,施工稳定性...     

Estimating thermal performance of cool colored paints

The purpose of this study is to investigate the thermal performance of cool colored acrylic paints containing infrared reflective pigments in comparison to conventional colored acrylic paints of similar colors (white, brown and yellow) applied on sheets of corrugated fiber cement roofing. Evaluated properties are: color according to ASTM D 2244-89, the UV/VIS/NIR reflectance according to ASTM E 903-96, and thermal performance by exposure to infrared radiation emitted from a lamp with the measurement of surface temperatures of the specimens with thermocouples connected to a data logging system.Results demonstrated that the cool colored paint formulations produced significantly higher NIR reflectance than conventional paints of similar colors, and that the surface temperatures were more than 10 °C lower than those of conventional paints when exposed to infrared radiation. The study shows that cool paints enhance thermal comfort inside buildings, which can reduce air conditioning costs.     

醋酸乙烯酯／丙烯酸钠阴离子型无皂乳液的制备与性能

对醋酸乙烯酯/丙烯酸钠(VAc/NaAA)阴离子型无皂乳液聚合体系进行了研究.研究了共聚单体配比对聚合反应及乳液性质的影响,考察了单体转化率随时间的变化曲线,测定了乳液的稳定性、黏度、吸水率、乳胶粒粒径大小及分布等性能,并根据机理做出了合理的解释.     

有机硅氧烷/丙烯酸酯乳液的无皂共聚合研究

采用表面活性单体烯丙基-2-羟丙基醚磺酸钠（NaAPS)和丙烯酸聚羟基丙酸酯（PHPA）作为乳化体系进行无皂硅氧烷/丙烯酸酯（硅丙）共聚乳液的制备，研究了表面活性单体种类，共用和用量对硅丙共聚乳液及其涂料性能的影响。结果表明，与普通硅丙共聚乳液相比，无皂硅丙共聚乳液涂料的涂膜有较好的综合性能。     

外墙乳胶漆失光率研究

通过实验,分析讨论了乳液、纳米二氧化硅、白云母对外墙乳胶漆失光率的影响。研究结果表明,乳液的性能不同,乳胶漆的失光率不同;乳胶漆中加入0.1%纳米SiO2,失光率由39%降为12.7%,乳胶漆的失光率明显降低;加入白云母5%,失光率降低16%,对乳胶漆的光泽度和失光率都有一定的改善作用。     

醋丙乳液的合成及其性能表征

采用种子乳液聚合法合成一种高性能醋酸乙烯-丙烯酸丁酯-甲基丙烯酸三元共聚乳液(简称醋丙乳液),探讨了聚合过程中乳化剂的配比及用量、单体的选择等因素对产品性能的影响,并对乳液的性能与结构进行分析和表征。研究结果表明,阴离子乳化剂十二烷基苯磺酸钠和非离子乳化剂辛基酚聚氧乙烯(20)醚复配可以提高体系的稳定性,当阴/非离子质量比为1:1,总用量为3%时,乳液综合性能优异。此外,功能性单体甲基丙烯酸的引人可降低乳液的凝胶率并提高乳胶膜的性能。     

The effects of paints and moisture content on the indoor air emissions from pinewood (Pinus sylvestris) boards

The emissions of volatile organic compounds (VOCs) from building materials may significantly contribute to indoor air pollution, and VOCs have been associated with odor annoyance and adverse health effects. Wood materials together with coatings are commonly used indoors for furniture and large surfaces such as walls, floors, and ceilings. This leads to high surface-to-volume ratios, and therefore, these materials may participate remarkably to the VOC levels of indoor environment. We studied emissions of VOCs and carbonyl compounds from pinewood (Pinus sylvestris) boards of 10% and 16% moisture contents (MC) with three paints using small-scale test chambers (27 L). The emissions from uncoated pinewood and paints (on a glass substrate) were tested as references. The 28-day experiment showed that the VOC emissions from uncoated pinewood were lower from sample with 16% MC. Painted pinewood samples showed lower emissions compared to paints on glass substrate. Additionally, paints on 16% MC pinewood exhibited lower emissions than on drier 10% MC wood. The emissions from painted pinewood samples were dominated by paint-based compounds, but the share of wood-based compounds increased over time. However, we noticed differences between the paints, and wood-based emissions were clearly higher with the most permeable paint.     

弹性建筑乳胶漆耐沾污性评价和改进

比较了弹性建筑乳胶漆耐沾污性的四种测试结果和实际使用结果,叙述了改进弹性建筑乳胶漆耐沾污性的一些措施     

乳胶漆稳定性理论及影响因素

综述了乳胶漆分散稳定性理论 ,包括电荷稳定理论和空间稳定理论 ;介绍了生产过程和乳胶漆配方对分散稳定性的影响