涂料生产中VOC的污染与防治

涂料化工是一个高污染的行业,在其生产过程和使用产品过程中VOC污染逐步受到了社会的重视,其与人类的息息相关。为此,对VOC的产生及其毒害性进行分析,并探讨涂料生产中VOC的污染防治策略,希望能起到抛砖引玉的作用。     

水性涂料中VOC的危害与控制

分析了水性涂料中VOC的危害程度,提供了水性涂料降低VOC的方法,并初步探讨了这些方法有可能带来的缺陷和解决手段。     

涂料涂装行业VOC减排浅析

VOC排放问题引起政府的关注,以VOC为代表的特征和毒性污染物已经成为我国大气污染防治的重点。分析了涂料涂装行业VOC减排面临的形势,对比了世界各地区的环保（大气净化）法规,总结了降低VOC的技术措施,提出了削减涂料涂装行业VOC排放量的建议。     

VOC和绿色建筑涂料

本文讨论了涂料中有机挥发物（ＶＯＣ）对人体健康和环境的危害以及绿色建筑涂料的重要性,叙述了绿色涂料的标准,评述了作为绿色建筑涂料代表的某些水性涂料的现状及其发展。     

降低涂料中VOC含量的技术手段

简述了VOC(挥发性有机化合物)对环境和人体的危害,介绍了降低涂料中VOC含量的若干技术手段。     

涂料行业VOC污染控制政策法规研究

简要介绍了VOC对环境的危害和涂料行业VOC产生情况,阐述了涂料行业VOC相关政策法规,分析了涂料行业VOC污染控制存在的主要问题,并提出了涂料行业VOC污染控制未来发展方向。     

VOC与涂料配方及性能的关系

通过对TVOC和VOC计算公式对比 ,指出强制性国标和环境标志认证关于有机挥发物限量的差异 ,提出为满足限量要求应采取的方法。     

测定水性涂料中VOC的几点建议

不同标准和测试方法会引起VOC值的差异 ,针对水性涂料的特点 ,对影响VOC测定的因素作了试验 ,提出测试步骤和合理方法 ,并统一计算方法 ,消除这些差异     

高校实验室的环境污染与防治措施

本文分析了造成高校实验室环境污染的原因,并针对这些污染提出了相应的防治措施.     

建筑涂料中挥发性有机化合物含量的测定和控制

阐述VOC概念、VOC控制指标、各种标准的测定方法和适用范围，我国和美国控制VOC的发展趋势。     

辐射固化涂料的发展

辐射固化涂料具有高效、节能、无污染的特点。本文阐述了紫外光固化涂料、电子束(EB)固化涂料的发展现状 ,以及辐射固化涂料的应用 ,提出了尚需解决的问题及其发展前景。     

挥发性有机化合物的污染控制技术

随着经济的发展,挥发性有机化合物(VOC)的污染已成为危害人体健康的公害。评述了目前VOC的各种控制技术,并指出了各种方法的适用条件及存在的问题,提出了VOC控制技术的发展方向。     

乳胶漆气味和VOC的探讨与研究

讨论了乳胶漆气味、VOC以及健康环保间的关系,并研究了乳胶漆中气味的来源以及消除VOC和气味的方法。     

反渗透膜污染成因与防治

反渗透膜的污染受膜自身性质、水质和操作条件的影响。综述了膜材料、膜结构和膜组件、操作温度、压力、pH值、剪切速率和水质对反渗透膜污染的研究现状,同时指出研制低／抗污染膜和膜组件,优化操作条件．增设水质预处理和有效的膜清洗是皈渗透膜技术的发展方向。     

反渗透膜污染成因与防治

反渗透膜的污染受膜自身性质、水质和操作条件的影响.综述了膜材料、膜结构和膜组件、操作温度、压力、pH值、剪切速率和水质对反渗透膜污染的研究现状,同时指出研制低/抗污染膜和膜组件,优化操作条件.增设水质预处理和有效的膜清洗是反渗透膜技术的发展方向.     

气相色谱法测定水性涂料中的VOC

基于250℃沸点的VOC定义,介绍了用气相色谱法从定量及定性分析测定水性涂料中VOC质量分数的方法。结果表明,该法方便、快捷、准确性高。     

Improvements in the application properties of water-based low VOC coatings

Conclusions  This paper discusses a new class of acrylic latex (NeoCryl TX200) in which the colloid stabiliser is designed to interact with titanium chelates such as Tilcom AT23, thereby building up a weak gel structure which can be broken down by shear. This class of latex can be formulated with associative thickener (and their blends) in conjunction with titanium chelates, thus providing considerable formulation flexibility which cannot be achieved with conventional surfactant stabilised acrylic latex. A key feature of this new class of latex is that the colloid stabilisation system does not introduce water sensitivity, and indeed wet adhesion characteristics are fully comparable to those of state of the art adhesion promoted latexes. A further benefit of this class of latex is that of increased open-time, arising in part from its intrinsic rheological characteristics, and in part from the high film build achievable with thixotropic formulations. Rheological measurements show that introduction of titanium chelates greatly increases the low shear-rate viscosity of the system, and vane rotor measurements show that there is a near linear dependence of gel strength with titanate concentration. This gel, which is responsible for preventing in-can settlement of pigments and good brush pick-up, is partially broken down by the action of brush dripping, and is completely broken down during application (eg by brush or spray). The structure subsequently builds up with time, with gelation occurring in as little as 5–10 minutes, but with full recovery of gel strength taking in the region of 10–12 hours. The titanate chelating agent, even at high concentrations, does not contribute to the high shear-rate viscosity of the system, this being controlled by the addition of associative tickeners, either alone or in combination. The associative thickener(s) also control the low shear-rate viscosity during the period in which the gel structure has been sheared out, and thus good flow and levelling properties can be obtained through the optimisation of associative thickener type(s) and concentration(s). Although, as might be expected, cosolvents affect the rheological properties of formulations containing both associative thickener and titanium chelate, this effect is not a large one, and can be readily taken into account during formulation design.