魄纯聚酯粉末涂料的性能研究

简要介绍了粉末涂料的特点，并从涂膜性能的优化角度论述了粉末涂料原料的选择和使用情况，从羧基聚酯树脂－TGIC体系纯聚酯粉末涂料配方设计入手，研究了基料、填料、助剂对其涂膜性能（主要物理机械性能：涂膜之耐冲击力、柔韧性、倾斜流动性、硬度、附着力、抗UV老化等）的影响，得到了一个在给出原料中涂膜综合性能最好的配比。     

白色纯聚酯粉末涂料的性能研究

介绍了粉末涂料的特点，并从优化涂膜性能的角度研究了粉末涂料原料的选择和使用情况。从羧基聚酯树脂－异氰脲酸三缩水甘油酯（TGIC）体系纯聚酯粉末涂料配方设计入手，研究了基料、填料、助剂对其涂膜物理机械性能（耐冲击力、柔韧性、倾斜流动性、硬度、附着力、抗UV老化等）的影响，给出涂膜综合性能最好的原料配比。     

高性能聚酯透明粉末涂料的研制及应用

分析了透明粉末涂料的技术要求和透明粉末涂料的现状,高性能聚酯透明粉末涂料的原料选择、配方和工艺设计,研制和生产出一种高性能聚酯透明粉末涂料,其涂膜大部分项目的性能与丙烯酸透明粉末涂料相当,产品价格何竞争力,客户心用反馈产品质量良好,产品市场广阔。     

促进剂对聚酯环氧粉末涂料性能的影响

研究了不同促进剂品种对聚酯环氧粉末涂料与涂膜性能的影响,同一种促进剂品种对不同聚酯树脂品种配制聚酯环氧粉末涂料与涂膜性能的影响,以及不同催化剂用量对同一种聚酯环氧粉末涂料与涂膜性能的影响。通过选择合适的促进剂品种、用量以及与合适的树脂品种匹配,才能达到粉末涂料的适宜的反应活性和优良的涂膜机械性能。     

高附着力聚乙烯粉末涂料制备与性能研究

通过优选聚乙烯原料对配方进行改性，制备出高附着力聚乙烯粉末涂料。研究了不同原料及添加量对聚乙烯粉末涂料力学性能和涂膜性能的影响。研究结果表明，添加增黏树脂后，聚乙烯粉末涂料的附着力和流平性得到显著提高，同时，提高了粉末涂层的拉伸强度和断裂伸长率。当增黏树脂添加量为5%时，聚乙烯粉末涂料的各项性能指标均满足工程要求，且生产成本最优。     

改性聚丙烯在涂料中的应用

用等规聚丙烯与马来酸酐的固相接枝法，制得具有不同酸值的改性聚丙烯树脂，对其涂膜性能进行了研究。并将其与环氧／聚酯粉末涂料共混，研究了共混物的涂膜性能。结果表明，固相接枝聚丙烯树脂单独或者作为环氧／聚酯粉末涂料的一个组分用于粉末涂料，具有很好的涂膜性能。     

薄涂型粉末涂料与涂装效果的探讨

讨论了新开发的薄涂型粉末涂料的突出优点。与常规粉末涂料相比,薄涂型粉末涂料的涂膜厚度降低,膜厚均匀性提高,涂布率增加,在不牺牲涂膜性能的前提下,可以降低涂装成本。     

国外加快环氧粉末涂料技术进步

随着粉末涂料市场不断地开拓和渗透，粉末涂料生产商更加注重涂膜缺陷的消除、降低涂膜厚度、提高涂膜平整度、增加更多的涂料颜色。最近国际D环氧树脂粉末涂料业巨头uPont Powder Coatings把最新的技术开发集中在粉末涂料的粒度控制、提高粉体的施工稳定性、提高涂膜的抗擦伤和耐久性能、降低涂料固化温度（节能）、提高涂装速度和改进熔结型环氧的附着性。     

粉末涂料在汽车车厢上的应用研究

结合粉末涂料在江淮汽车车厢生产线上的应用项目,介绍了粉末涂料的特点、施工工艺等,验证了粉末涂料与电泳、密封胶的配套性,以及粉末涂层的外观装饰性及涂膜性能。     

热固性氟碳粉末涂料的研制

简要介绍了热固性氟碳粉末涂料的优异性能以及生产工艺过程,讨论了影响涂膜性能的因素,并对涂膜物理性能和耐化学品性能进行了试验研究。     

电弧喷涂与粉末涂料喷涂复合涂层防护技术

研究了热固性粉末涂料用作金属热喷涂涂层的封闭层及面层的防护技术,比较了分别喷涂环氧锌基重防腐粉末涂料、纯聚酯粉末涂料,喷涂环氧锌基重防腐粉末涂料后再喷涂纯聚酯粉末涂料以及热浸镀锌后喷涂纯聚酯粉末涂料等试样在不同盐雾和人工加速老化时间下的附着力.结果发现,只有熔融黏度偏低的环氧类粉末涂料适合用作封闭层.该复合涂层技术已应用于高速公路护栏上.     

耐候型聚酯粉末涂料的研究进展

针对户外用粉末涂料的老化,介绍了国内外耐候型聚酯粉末涂料的研究进展。阐述了其目前在树脂合成与改性、固化体系和固化剂选择及添加特殊助剂等方面的发展方向,并简要分析了其抗老化机理。指出作为粉末涂料的主要组成物质,聚酯和固化剂的性能对粉末涂料的耐候性起着至关重要的作用,同时添加纳米粒子改性粉末涂料也是提高其耐候性的一种新型有效的方法。     

聚酯粉末涂料在交通护栏上的应用

介绍了高速公路护栏表面处理方式的发展历史、热浸镀锌和聚酯粉末喷塑双涂层工艺、聚酯粉末涂料的反应机理和涂层特性、聚酯粉末涂层耐候性能的测试和分析。该双涂层工艺对公路护栏有着良好的保护性和装饰性。     

Cure behavior of polyester-acrylate hybrid powder coatings

Interest in finding alternatives to TGIC-based powder coatings have driven development of alternate binders for the exterior durable powder coating market. Thermoset powder coatings utilizing carboxylic acid functional polyester resins cured with epoxide-functional acrylate polymers have been evaluated and characterized. Modification of the composition and molecular weight of either component influences the physical properties of formulated powder coating. The behavior of these coatings during the cure process has been investigated and compared with polyester/TGIC systems. 2400 Ellis Rd, Research Triangle Park, NC 27709.     

聚酯粉末涂料紫外光人工加速老化过程的研究

使用紫外光人工加速老化的方法研究了聚酯粉末涂料的老化过程,通过扫描电子显微镜(SEM)、能谱分析(EDS)、X射线光电子能谱分析(XPS)和红外光谱跟踪涂层老化过程羰基指数的变化,研究了聚酯粉末涂料在老化过程中涂层的形貌改变以及基团变化,探讨涂层老化的机理。测试结果表明:聚酯粉末涂层在紫外光、氧气、水分和温度的共同作用下发生剧烈的光氧化反应,C1s分峰拟合结果显示聚酯粉末涂层的C—C、C—H和C—O发生光氧化反应氧化生成了更多的C=O。     

Properties of powder coatings in load carrying construction

The present study describes the mechanical behavior of powder coatings used under very high compressive loads in clamping force joints. Carboxyl functional polyester powder coatings cured with hydroxyl functional β-hydroxyalkylamides with variations in coating thickness and amount and type of filler, have been studied. The coatings were subjected to conventional tests for coatings and polymers and also to specially designed tests developed to study the behavior of powder coatings in clamping force joints. The specially designed tests were used to study the coatings under compressive loads, and the relation between the results from these test methods and from conventional tests is discussed. The results show the importance of coating thickness in order to achieve the desired mechanical properties of a coating when used under high compressive loads. These loads put high demands on the stability of the coating, and the defects must be kept to a minimum. Increased thickness will give rise to more defects in the coating, especially voids and blisters due to the evaporation of water formed during the curing of the polyester powder coating. The surface roughness of the coating is also affected by the coating thickness, but the main influence originates from the type and amount of filler used. A rough surface will give rise to stress concentrations and increased plastic deformations in the coating, impairing the properties of the clamping force joint.     

改善聚酯树脂粉末涂料耐候性的研究进展

粉末涂料由于其节能环保的优势,近年得到了广泛重视.本文介绍了粉末涂料用聚酯树脂老化降解的主要机理及影响因素,重点评述了国内外提高聚酯树脂涂膜耐候性的研究进展,并对其在超耐候性聚酯树脂基粉末涂料中的应用进行了展望.     

The pigmentation of powder coatings with the use of block copolymer dispersants

The dispersing of pigments in powder coatings is a difficult and complicated process. The incomplete dispersion under standard extrusion conditions can be attributed to a combination of poor pigment wetting and insufficient disruption of the pigment agglomerates, as a result of the rheological properties of the powder coating resin. The use of block copolymer dispersants for improving the pigment dispersion in powder coatings is studied in this project. Novel block copolymer dispersants from 2-vinylpyridine and ε-caprolactone have been synthesized and tested. These block copolymers show a high affinity for TiO₂ pigments and are capable of improving the stability of a TiO₂ dispersion in a polyester powder coating resin.     

Qualitätsverbesserung durch Pulverlacke im Aluminium-Bausektor

Improvement of the Quality of Powder Coatings in Aluminium Constructions Polyester powder coatings have been fully accepted in constructions for their desirable processing and quality characteristics, however, certain doubts exist concerning their use compared to materials used so far, such as anodized aluminium, polyurethane coatings and other powder coatings. Following tests were used for comparison: Abrasion, shooting with steel shots, and action of alkali and organic acid. Considering all the properties, it can be concluded the current use of definite types of polyester powder coatings in the coating of building elements and windows should indeed be considered as a technical progress.