塑料用涂料及涂装

探讨了塑料用涂料的配方设计原则及专用溶剂的选择。列出了塑料用涂料的技术指标。综述了塑料用涂料的涂装工艺条件。     

塑料模塑品及其涂装

涂装塑料可以弥补塑料本身性能的不足。随着塑料品种的多样化，用于涂装塑料的涂料品种也在不断增加。文中介绍了塑料模塑品、适应不同性能塑料所应使用的涂料及其涂装工艺。     

塑料涂装中的技术问题

介绍了塑料涂装中的理论和配方设计原则,为塑料涂料的生产和施工提供参考。     

聚烯烃塑料涂料及其涂装

在讨论聚烯烃塑料涂料附着机理的基础上，综述了聚烯烃塑料涂装时其表面的处理方法及其涂料的类型。展望了聚烯烃塑料涂料的发展方向。     

简易塑料粉末涂装技术

本文介绍使用聚乙烯,聚酰胺,聚氯乙烯等粉末进行冷件涂塑,高温塑化成型的方法,使涂装产品附着力强表面平滑光泽度好,适合于中小金属制件的塑料涂装。     

日本研制出塑料涂装用仿金属水性涂料

日本近日研制出一种塑料涂装用仿金属水性涂料，该涂料由聚合物水分散体树脂、金属颜料和着色颜料、成膜助剂、水性涂料用助剂和水组成，可用于各种塑料表面的涂装，特别适用于ABS，PS，HIPS，PC／ABS，ABS／PS，PS／PP，POM，PAM，PVC塑料的表面涂装。     

聚碳酸酯塑料的表面涂装技术进展

聚碳酸酯具有优异的耐冲击、耐热性,且透光率达到80％,是高速公路隔音、防眩目、房屋天棚采光的优良材料。但是PC板表面硬度低、易擦伤、耐溶剂和耐污染差、耐大气老化性不佳,又影响了它的推广应用。实验表明,以紫外固化的丙烯酸有机硅涂料涂复PC板是改善和提高其性能的最经济有效的手段之一。     

塑料用涂料

塑料用的涂料组合物及柔韧性涂膜的形成方法;涂装塑料膜以改进附着力和耐磨损性的工序;涂料组合物及其涂覆的塑料透镜;带有良好的层间附着力的耐候耐划伤多层透明涂膜的塑料模型;;聚氯乙烯塑钢门窗专用涂料的应用研究;     

汽车保险杠PP塑料涂料的研制及其涂装

汽车保险杠聚丙烯塑料用高装饰、高耐候性底漆及配套面漆的研制 ,讨论了影响附着力的因素及配制工艺和施工参数。     

塑料透镜的耐磨膜

采用化学方法，以甲基丙烯酰氧基丙基三甲氧基硅烷为单体，环氧树脂掺杂在塑料透镜上涂制耐磨膜，膜层附着力好，坚硬，耐磨性高，透镜白光透过率可提高１％－１．５％，并有较强的耐磨性能。     

基于PowerMILL的Z向投影精加工

本文主要介绍PowerMILL精加工中沿Z轴向下投影图案至模型类型的精加工策略，包括平行精加工、放射精加工、螺旋精加工、参考线精加工和嵌入参考线精加工。     

新型织物卫生整理剂磷酸酯叔胺盐的合成

研究了合成磷酸酯叔胺盐原料配比、反应温度、反应时间等条件对产物收率的影响，找到了一条比较理想的工艺路线。     

Kynar—500涂装工艺与涂层性能研究

介绍了Kynar－500涂料的涂装工艺，并对涂层的性能作了试验与分析。     

Elastica bend testing of the effective interfacial shear strength and critical deformation strains of brittle coatings on ductile substrates

An elastica bend test is described that provides a rapid, convenient, and reproducible means for examining the interfacial delamination of brittle coatings on ductile substrates. By bending a coated strip into a half-loop and examining the microscopic cracking that is observed on the sample surface as the loop size decreases, information is obtained about the characteristic initial, mean, and final strains _i, _m and _f that describe the distribution in strength of the coating. By measuring the distance between the cracks at high strains, we obtain an estimate of the interfacial shear strength τ.     

塑料制品防火涂料的制备和应用

介绍了一种塑料制品防火涂料的制备和使用方法,并扼要阐述了该产品的基本性能和防火机理。     

Basic Study of Adhesion of Several Alumina‐based Washcoats Deposited on Stainless Steel Microchannels

The adhesion of several washcoats deposited on stainless steel microchannels was investigated by performing a mechanical test (drop test) after application‐oriented tests, temperature cycling, and water exposure. For this study alumina washcoats (γ‐Al₂O₃) and washcoats of commercially available alumina‐based catalyst powders (Pt/Al₂O₃, Rh/Al₂O₃) were used. The deposited washcoats showed very good adhesion not only for fresh samples but also after the application‐oriented tests.     

手工抛光塑料模具的型腔

叙述了手工抛光塑料模具型腔的要点，包括对被抛光模具型腔的材料及处理的具体要求，以及粗磨，细磨，粗抛，精抛和操作注意事项。     

Adhesion between submicrometer polystyrene spheres

The sphere-substrate contact method was usually used to study adhesion theory because it is rather difficult to make two micrometer or submicrometer spheres contact precisely. Here, we used sphere-sphere contact method by a novel, simple process to investigate deformations of spheres. The polystyrene particles size ranges from 60 nm to 600 nm. We found that the polystyrene particles underwent plastic deformations due to van der Waals interaction. The contact radii were observed by the scanning electron microscope (SEM).     

Helping to choose operating parameters for a coating fluid bed process

The feasibility of solid particles coating in a fluid bed with a Wurster tube is studied for several types of particles and aqueous coating solutions. The model products are wheat semolina, beads of glass, alumina, resin polystyrene, plastic PMMA, with a size range between 125 and 1250 μm and densities between 500 and 2500 kg m⁻³. The chosen coatings are representative of those used for the food products, such as maltodextrin, acacia gum, and sodium chloride in aqueous solution.

The air flow rate suitable for a regular circulation of particles in the reactor is determined for each particle type. For each coating solution, the flow rate leading to agglomeration is considered as the maximal limit flow rate to use for coating. Then comparative coating experiments were realized.

For a similar initial load of particles, the same mass of coating was atomized (13.5 g min⁻¹) at 50 °C. The mass of coating deposit on particle surface is increased linearly during an atomization sequence lasting 33 min. For example, for every 100 g of alumina particles, the rates are 0.48, 0.51, and 0.53 g min⁻¹ for sodium chloride, maltodextrin, and acacia gum, respectively. We then obtain a coating efficiency between 87% and 98%.

In the specific case of sodium chloride on glass beads, the deposit of crystallized salt was linear during 10 min then stopped. Addition of acacia gum (50%) to the NaCl coating solution leads again to a linear deposit over 65 min.