不可逆示温涂料的发展及应用

分别从功用、发展状况、研制情况及应用情况等方面讲述了国内单、多变色不可逆示温涂料的发展概况。同时以单、多变色不可逆示温涂料在航空发动机表面温度的成功测试案例,讲述了不可逆示温涂料广阔的应用前景。     

水性涂料VOC含量测定中水分含量测量方法对比

归纳了水性涂料VOC含量的限量值,讨论了水性涂料VOC含量的测定方法,对VOC含量测定中测水分含量的两种测定方法——卡尔·费休法和气相色谱法的精密度和准确度进行了考察。试验表明,卡尔·费休法的精密度和准确度不及后者。     

水性金属构件专用涂料的研制及其施工工艺

通过选用水性丙烯酸树脂与水性环氧树脂复配,研制了一种水性金属构件专用涂料。采用浸涂或喷淋的方式施工,涂膜均匀,表面平整光滑、硬度好、附着力强、防腐性好、关节活动性好、无漏涂现象,膜厚5～15μm的涂膜耐盐雾性可达48h。     

新型干粉建筑涂料的研究

研究了水性干粉建筑涂料的原料组成和生产工艺,通过对比试验了解配方中颜填料、可再分散胶粉以及功能助剂等对涂料性能的影响,生产、使用工艺简单,可制备出遮盖力强、优异耐擦洗性和耐水性等特点的产品。由于该产品完全采用水分散,具有便于运输、优异环保性和便于施工的特点。     

纳米材料在涂料中的应用进展

综述了纳米材料在涂料中的应用及其表现的优异性能(光催化、耐老化、隐身等),介绍了纳米涂料制备中纳米材料的分散方式,指出了纳米材料在涂料中应用的一些难点。     

水性木器涂料在木质餐椅流水线涂装中的应用

介绍了木质餐椅流水线常见涂装工艺、设备及对涂料的性能要求;根据水性木器涂料的特点,选择了一个合适的涂装领域:木质餐椅流水线涂装,在生产过程中代替溶剂型涂料,降低了发生火灾的级数,减少了VOC排放,保护了环境、节能降耗。对水性木器涂料应用领域的扩大和推广具有重要的意义。     

涂料树脂的相容性

讨论了涂料用共混树脂的相容性以及提高其相容性的主要途径,对部分相容树脂的形态及其对性能的影响作了介绍。     

助剂对反射隔热弹性涂料性能的影响

在选取丙烯酸乳液为基料,金红石型钛白粉为颜料,空心玻璃微珠、滑石粉和高岭土等为填料的基础上,探讨分散剂、消泡剂、耐沾污剂和pH值调节剂等对反射隔热涂料性能的影响,优化各种助剂在涂料中的最佳用量,以期指导隔热涂料配方设计。     

Drying regime maps for particulate coatings

Key microstructural properties of particulate coatings such as porosity and particle order are established during drying. Therefore, understanding the evolution of particulate distributions during drying is useful for designing coating properties. Here, a 1D model is proposed for the particle distribution through the coating thickness at different drying times and conditions, including Brownian diffusion, sedimentation, and evaporation. Effects of particle concentration on diffusion and sedimentation rates are included. Results are condensed onto a drying regime map which predicts the presence of particle surface accumulation or sediment based on two dimensionless numbers: the Peclet number and the sedimentation number. Cryogenic scanning electron microscopy (cryoSEM) is used to image the transient particulate distributions during the drying of a model system comprised of monodisperse silica particles in water. Particle size and evaporation rates are altered to access various domains of the drying map. There is good agreement between cryoSEM observations and model predictions. © 2010 American Institute of Chemical Engineers AIChE J, 2010     

BaSO4‐, CaF2‐, and Al‐Maleate‐Derived Nanocomposite Coatings with Excellent Mechanical,Thermal, and Optical Properties

Acrylate‐based nanocomposite coatings prepared from uniformly sized, nanoscaled inorganic, i.e., BaSO₄‐ and CaF₂‐ as well as organometallic, i.e., Al‐maleate‐derived nanoparticles were prepared applying photochemical curing. Excellent mechanical and thermal stability as well as high optical transparency was achieved as compared to standard SiO₂‐based coatings. The performance of CaF₂‐based nanocomposites could be further enhanced by addition of nanocorundum. A comprehensive data set on surface and Martens hardness, the penetration depths, glass transition temperatures, and UV–Vis transparency of the final coatings is presented.