飞机涂料

章等刀涂料工业一加01,31(2)一11一130102283直升飞机起降甲板防滑漆吁口1/朱万飞机涂料~~     

《涂料应用》

涂料使用技术第三分册“涂料应用”一书内容包括建筑、木器、汽车、机床、轻工(缝纫机、自行车,暖瓶,风扇、罐头)、铁路车辆等各种专业用漆的配套使用和施工方法,还有美术漆、大漆、防腐涂料、特种涂料的使用和施工。可供涂料使用部门的工人,技术人员、管理人员参考。每册定价1.5元,凡需订购的单位和个人请直接与化工部涂料工业研究所(通讯地址:兰州市24号信箱标准化室)联系。     

LT-3丙烯酸涂料

化工部涂料工业研究所新研制的LT-3丙烯酸乳胶涂料,是一种高级颜料体积的浓度乳胶漆。在研制中,运用当前国外流行的临界颜料体积浓度配漆,树脂一颜填料界面相互作用等,合成了新型LT一3乳液。这种涂料已在涂料工业研究所办公大楼等内墙而使用,效果很好。 LT一3丙烯酸涂料,是代换聚     

家具涂料

。。。5240高档漆酚家具漆的研制l刊J/张飞龙等刀涂料工业一2000,30(9)一6一10家具涂料~~     

漆酚环氧改性涂料的工业化研制及性能研究

环氧改性漆酚的涂料因具备成膜快、耐酸碱腐蚀良好、耐磨性高等特点,而被广泛应用于工业防腐、仿古建筑、家具涂装等领域。本文以生漆中的漆酚为基料,经环氧改性处理后,进一步研制出4种改性涂料：清漆I、防腐涂料I、底漆I、红色涂料I,并进行性能测试。结果表明：漆酚与环氧树脂E44投料比为1∶1,溶剂HB用量为40%-45%,反应温度在127℃～130℃反应6h制备的环氧漆酚性能最优;当环氧改性漆酚的粘度控制在60pa·s,固含量在36%～45%,增加2%湿润剂及1.8%增稠剂后制调制出的4种涂料稳定性好,性能指标优于国家标准。     

我国涂料工业现状及技术发展趋势

对涂料的组分和分类以及各类涂料的用途及特性作了简单介绍。概述了我国涂料工业的发展特点及生产、消费现状和今后我国涂料工业技术发展趋势,并指出了我国公司今后涂料生产应重点向重防腐漆、集装箱漆,船舶漆,汽车漆,道路标志漆等高档漆方面发展,并逐步淘汰低档漆。     

脱漆剂

9801484塑料表面涂料水性去漆方法及其去漆组合物:CN 1 149606A〔中国发明专利申请公开〕/台湾:财团法人工业技术研究院(李吉祥等)一95119028.8(1995.11.4);IPC C09D9/00 使用包含特定醇类及碱类之去漆组合物水溶液将塑料表面涂料去除。去漆组合物水溶液先与表面有涂料之废塑料粉碎料混合搅拌再加热至6。~13。℃,本发明之方法去漆率高达约95鱿。再生料纯度高、物性特别是耐冲击特性好。而且由于使用水性去漆组合物,符合环境保护及工业安全的要求。9801485以醚和二元酸二醋为基础的清洗剂和/或脱漆剂组合物:WO 96一30453〔国际专利申请,…     

低碳驱动无溶剂环氧涂料“绿”赢天下

正环氧树脂类涂料具有防腐能力强,附着力强、硬度高、耐磨、耐盐雾、耐酸碱、光泽高、固含量高、丰满度高等优点。因此,广泛用作工业重防腐漆、防锈底漆、地坪漆、油罐漆、饮用水箱漆等。但传统的溶剂型涂料约含50%的有机溶剂,在涂料的制造、施工、干燥、固化成膜过程中,向大气中散发出大量的VOC,     

世界各国涂料生产企业一瞥（二）

(95)Permite Corp,加利福尼亚州迪凯特,生产水泥漆,机械及工业设备用漆、汽车工业用涂料; (96)Permuthane Inc.,马萨诸塞州佩博迪,生产小汽车和长途公共汽车用涂料、木器清漆、工业用木器清漆、皮革涂料、橡胶用涂料、汽车工业用涂料、丙烯酸树脂漆、阻燃漆、木器家俱漆;     

80年代涂料助剂发展趋势

<正> 涂料工业是化学工业的重要组成部分。发达国家中涂料工业的产值约占化学工业总产值的4％。反映涂料工业发展水平的另一标准是原料消耗和产品结构,具体表现是(一)油性漆和合成树脂漆的比例。(二)水性漆与溶剂性漆的比例。(三)传统溶剂性漆与节约型涂料的取例。(节约型是指节     

Formulation effects on the distribution of pigment particles in paints

Modern water-borne paints are widely used in different areas of applications ranging from high-gloss lacquers to flat, scrub-resistant interior paints. From this point of view, the pigment volume concentration (PVC) is one key-parameter adjusting the desired application properties. In high-gloss paints, for example, a low PVC is required to accommodate the proper surface roughness to achieve a high gloss. Consequently, a high concentration of TiO₂ is needed to obtain a good hiding power at the same time. Flat paints nonetheless are highly filled due to cost reasons preferentially by CaCO₃ and the pigment binding capacity of the binder is crucial. In this work, paint formulations differing in PVC, and the type of binder or dispersing agent were investigated by various techniques concerning the distribution and aggregation of pigment particles, e.g. TiO₂. To get a detailed insight into the structure of the liquid paints and the corresponding dried paint films, suitable analytical tools were applied for characterization. The structure of the liquid paints was analyzed by remission light spectroscopy (RLS), disc centrifugation, cryogenic-replication transmission electron microscopy (Cryo-replica TEM) and cryogenic-scanning electron microscopy (Cryo-SEM). The pigment distribution in the corresponding dried paint films was examined by means of atomic force microscopy (AFM), TEM and RLS. The tendency of the TiO₂-pigments to form aggregates was found to depend on both: first on the type of binder used in the formulation and second on the employed dispersing agent. It is shown that only by adjusting the properties of the binder in combination with common dispersants, it is possible to get well-distributed TiO₂ particles within the paint. Correlation of application properties, e.g. gloss and blocking to the microscopic structure is presented.     

Fate of a coalescing aid after latex paint application

Water-based coatings require coalescing aids to achieve properties equivalent to solvent-borne paints. A common coalescing aid in latex paints is 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate (TMPD-MIB). The relatively large quantity of TMPD-MIB used in latex paints has raised concerns regarding its emissions to both indoor and outdoor atmospheres. In this study, a one-dimensional dual (paint and material) layer diffusion model was developed to estimate emissions of TMPD-MIB from two latex paints applied to gypsum board. The paints contained different pigment volume concentrations (PVC) and different amounts of TMPD-MIB. Different modeling approaches were used depending on the PVC of the paint. The proposed model for paint drying and TMPD-MIB emissions was tested with data from previous chamber experiments. Experimental data were first used for purposes of parameter estimation, and the model was then compared against an independent experimental dataset. The diffusion coefficient of the paint layer was adjusted as a function of the water content remaining in the wet paint film. The effective diffusion coefficient of TMPD-MIB in the paint layer was found to be dependent on the PVC and water content of the paint.     

无苯退漆剂研究及应用

在涂料涂装施工过程中,需要将无用的漆膜除去.本文通过对比常见的几种退漆方法,针对以往常用的含苯有机溶剂退漆剂存在的选择性强,适用范围窄,挥发性强,退漆速度慢,苯含量高,毒性大等缺点,根据各种涂料树脂及溶剂的物化性能,通过选用国产非苯类芳香烃类溶剂,进行多次配方筛选试验,研制出新型无苯退漆剂.经实验室评定及现场工业应用结果表明,研制的无苯退漆剂克服了原含苯退漆剂存在的缺点,可用于除去硝基、氨基、醇酸、酚醛、聚氨酯、过氯乙烯、丙烯酸、环氧树脂等多种漆膜.适用碳钢、不锈钢、铜、铝及木质家具等多种材料表面漆膜的退除.     

Anti-fouling paints. I. Theoretical approach to leaching of soluble pigments from insoluble paint vehicles

A theoretical approach to the problem of how contact leaching anti-fouling paints work is discussed; a possible mechanism is selected and applied to an idealised model of a paint film. A precise mathematical treatment is then attempted of the relationship between the leaching rate, the physical properties, and if applicable the chemical properties of the envisaged paint film and its environment. A mechanism previously proposed has been examined by this method. An equation is derived for an idealised paint film relating the leaching rate to the physical properties of the paint film and the leachate. It is assumed that the rate of solution of a soluble pigment from an insoluble vehicle is dependent only on the physical properties of the paint film and the diffusion of the solvated pigment through the exhausted matrix and the diffusion layer of leachate in direct contact with the surface of the paint. An equation is derived for an idealised paint film which relates the leaching rate to some physical properties of the paint film and of the leachate. The equation is shown to predict qualitatively the effect of most variables known to affect the leaching of contact leaching paints. Some evidence is given to support the quantitative prediction of the relationship between the pigment volume content and the initial leaching rate, the effect of dissolved pigment in solution on the leaching rate, the increase in leaching rate for a given temperature increase, and the effect of velocity of flow past the surface of the paint film. This method of approach would appear to be applicable to mechanisms and models bearing a closer resemblance to practical anti-fouling paints. However, the mechanism proposed appears sufficiently well substantiated to be employed in the design of leaching experiments and their application to more practical problems, such as the formulation of anti-fouling paints. The need of a more rigorous approach to the design of leaching experiments is indicated.     

Calcium tripolyphosphate: An anticorrosive pigment for paint

The objective of this work was to evaluate the performance of calcium tripolyphosphate in anticorrosive paints. Its anticorrosive properties were studied in pigment suspensions and in solventborne paints with 10% and 30% of the pigment by volume and a pigment volume concentration/critical pigment volume concentration (PVC/CPVC) equal to 0.8. The behavior of paints formulated with epoxy and alkyd resins was assessed by accelerated (salt spray cabinet and humidity chamber) and electrochemical tests (corrosion potential, ionic resistance, and polarization resistance). Calcium tripolyphosphate was proven to inhibit steel corrosion when incorporated in a paint film. Good protection was achieved employing only 10% by volume of the pigment, instead of 30%, as was suggested in the case of phosphates. The anticorrosion protection afforded by alkyd paints was impaired when the pigment content was increased. Epoxy paints seemed to be less sensitive to the pigment content. Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIC-CONICET), Calle 52 e/121 y 122. (1900) La Plata. Argentina. Fax: 54.221.427. 1537. email: cidepint@ba.net     

Improvement of anticorrosive performance of phosphate-based alkyd paints with suitable additives

The purpose of this investigation was focused on reducing the content of zinc phosphate in anticorrosive paints by means of the incorporation of low quantities of selected soluble corrosion inhibitors. The article describes the anticorrosive behavior of alkyd paints containing reduced levels of zinc phosphate, zinc oxide, and some soluble compounds used as additives (e.g., sodium polyphosphate, sodium phosphate, and sodium benzoate). Anticorrosive solventborne alkyd paints were formulated with a zinc phosphate content of 10% by volume (v/v) with respect to the total pigment concentration. In all cases, the PVC/CPVC (pigment volume concentration/critical pigment volume concentration) ratio was 0.8. Experimental paints, applied on sandblasted SAE 1010 panels, were evaluated by accelerated tests (salt spray cabinet) and electrochemical measurements (electrochemical impedance spectroscopy, EIS). The results show that the additions of small amounts of soluble corrosion inhibitors to low content zinc phosphate paint formulations enhance their performance in a very remarkable way. Perhaps, the most outstanding feature is that the employment of soluble additives allowed the reduction of the zinc phosphate content with concomitant savings.     

Evaluation of Mesua ferrea L. seed oil modified polyurethane paints

Two types of stoving paints have been prepared from Mesua ferrea L. seed oil (MFLSO) modified poly(urethane ester) (PUE) binder systems. One stoving paint system was prepared from partially butylated melamine formaldehyde (MF) resin modified MFLSO-based PUE (70:30 weight ratio) and other one comprised of bisphenol-A-based epoxy resin modified with MFLSO-based PUE (50:50 weight ratio). Paints made with these two resin systems as binders were evaluated against the standard paint system. The physical properties of the paint systems viz. non-volatile content, specific gravity, viscosity, drying time, flexibility, adhesion, scratch hardness, gloss, etc. and chemical properties such as corrosion resistance, salt spray resistance, UV resistance, etc. were measured as per the standard methods and were compared. Thermal stability and surface morphology of the paints were also studied by using thermogravimetric analysis (TGA) and scanning electron microscopy (SEM), respectively. The performance characteristics of both the test paints were found to be comparable with the corresponding industrial standard paints. Out of the two test paints, the epoxy modified PUE-based stoving paint has been found to be preferred.     

Spatial point statistics for quantifying TiO2 distribution in paint

Spatial point statistics such as Clark-Evans R, Ripley’s K, and the neighborhood distribution function (NDF) have been used to study the spatial distribution of TiO₂ particles in sections of paint films. Particle coordinates were obtained from electron micrographs. Ripley’s K and the NDF are particularly useful in detecting segregation, randomness, or aggregation at various length scales. Other statistics such as aggregate-size distributions were also calculated. The spatial distribution in well-dispersed paints studied here is essentially random and observed aggregates are explained by the spatial inhomogeneity inherent in the random distributions. The aggregate-size distributions are approximately logarithmic for well-dispersed paints. Mean aggregate size increases with increasing pigment volume concentration (15–30%PVC), even though the spatial distribution remains random, showing that crowding at high PVC is a heterogeneous process. Mean aggregate sizes determined by microscopy correlate well with opacity and other paint properties. Computer simulation shows that spatial point and aggregate-size analysis of points in 2-D slices taken from a 3-D volume underestimate absolute aggregate sizes, but that spatial statistics and aggregate distributions correlate strongly with those obtained from the original 3-D distribution. Therefore, results from analysis of micrographs are expected to translate to the 3-D paint film. As expected, coarse extenders crowd the TiO₂ and increase aggregation, but highly anisodiametric particles appear less deleterious than blocky particles.     

Effect of dextrin on properties of glazes and ceramic paints and on the reduction of cobalt oxide

It is established that dextrin contained in cobalt-bearing paints influences the quality of decorative ceramics. The content of dextrin is responsible for the probability of such defects as paint crumbling and cobalt metallization. As the content of dextrin in a paint grows and its adhesive capacity increases, the glaze layer thickness at the sites of paint application decreases, as well as the viscosity, the wetting angle, and the porosity of glaze. It is recommended to introduce 13% dextrin into cobalt-bearing paints. __________ Translated from Steklo i Keramika, No. 3, pp. 20–22, March, 2006.     

Dependence of dirt resistance of steel topcoats on their surface characteristics

Contamination of exterior coatings with dirt is a significant problem in seriously polluted environments. To correlate the dirt resistance of exterior coatings with surface characteristics (wettability, roughness, and composition), steel topcoats were evaluated using both dirt pick-up tests according to a national standard testing method of China (GB/T 9757-2001) and outdoor exposure experiments in Shanghai, China. These topcoats included polyvinylidene fluoride (PVDF) paints with various water contact angles (WCAs), polyurethane (PU) paint, polysiloxane (PSiO) paint, and 2K fluorocarbon (FPU) paint. Opposite dirt resistance results were obtained from these two dirt pick-up methods. In the outdoor exposure experiments, superhydrophilic PVDF paints showed excellent self-cleaning performance and thus superior dirt resistance. Superhydrophobic PVDF paint exhibited self-cleaning performance initially, but became dirty finally due to a piling up of PM_2.5 pollutants. PVDF paints with WCAs of 85°–125°, PU, PSiO, and FPU paints all exhibited poor dirt resistance in the outdoor environment. These results indicate that dirt resistance depends on surface wettability and the characteristics of pollutants rather than on the surface roughness and composition.