水性含氟聚合物涂料的研究动向

阐述了有机氟树脂的结构特点,详细介绍了水性含氟聚合物及其涂料的制备,以及最新研究动向,并对水性含氟聚合物涂料的前景做了展望。     

用于水性木器涂料聚合物乳液的制备

介绍了一种用于水性木器涂料的聚合物乳液的制备方法,分析了不同加料方式和不同滴加速度对乳液合成的影响,并最终合成出能够用于水性木器涂料的均匀、细腻的阳离子聚合物乳液。     

水性聚合物及其在水性油墨中的应用

水性油墨具有环保、卫生、经济、节省能源和资源以及良好的适印性等优点,近年来发展迅速,已逐步取代溶剂型油墨。介绍了水性油墨用水性聚合物连接料的合成工艺和改性方法,着重阐述了水性油墨用水性聚合物的研究进展。     

水性涂料

含乳化极性氧化聚乙烯蜡的涂料组合物及其制备，能在潮湿条件下比干燥条件下透射更多光线的园艺温室表面用防护性涂料，可辐射远红外线的天然无污染功能型涂料制备法，含膦酸和聚乙烯醇的合成涂料，低VOC乳液聚合物涂料组合物、水性涂料组合物的制备及乳胶漆，适用于水稀释涂料和色漆的光稳定剂乳液组合物，含带烷氧基硅烷基的乙烯基聚合物粒子的水性乳液涂料，[编者按]     

水性涂料

200810100乳液聚合物乳胶用取代的烷氧基化酚类和支化的硫酸酯类;200810101耐水性和贮存稳定性好的水性涂料组合物;200810102丙烯酸聚合物粒子水稀释乳液及其制备和涂料;200810103含固化剂的丙烯酸聚合物粒子水稀释乳液、其制备和涂料;200810104含磷光颜料的透明水稀释丙烯酸聚合物涂料组合物及其层压制备的彩色涂层;     

工业木器漆用水性聚合物新进展

环保法规的制定促使人们对水性漆基的开发。     

水性涂料

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疏水缔合水溶性聚合物在水性涂料中的研究进展

简述了疏水缔合型水溶性聚合物的合成方法 ,对增稠机理和特性作了评述 ,指出了其发展方向     

水性涂料

200601056 不含挥发性聚结有机溶剂的无味聚乳酸改性水乳液涂料；200601057 水性隔热涂料；200601058 作为清水墙底漆的提高了封闭性及填充性的厚膜水稀释涂料组合物；200801059 耐水和耐热的自氧化固化型水性涂料组合物；200601060 聚烯烃底材用水性丙烯酸底漆组合物……     

水性聚合物及其涂料的现代分析测试技术

对涂料各项宏观性能的测试及对涂料在微观层次上的分析技术,构成了涂料科学的一个重要组成部分.本文从水性聚合物及其涂料的原材料分析、涂料剖析、涂膜形成过程分析、涂膜结构与形貌分析等方面讨论了现代分析技术在水性聚合物及其涂料分析测试中的应用.     

水性氟树脂及涂料的研究进展

"十二五"规划提出的技术创新目标有:研发性能达到工业涂装要求的水性工业涂料;水性防腐涂料要向重防腐领域、大飞机、大舰船等推广。水性氟涂层由于环保和突出的耐候性能,使其成为各行业的研究热点,特别是单组份可交联型水性氟涂料更成为研究的重中之重。本文拟在介绍水性氟树脂的合成方法、种类及特点,水性氟涂料的应用机理和方向及市场分析,综述了现阶段研究者们在水性氟涂料领域所取得的研究进展。     

水性氟涂料及相关标准的制定

介绍了水性含氟乳液的分类、主要生产厂家及水性氟涂料标准的相关指标制定的说明。     

Basic Characteristics of Aerodynamic Spinning of Fibres from Solutions of Polymers

A mathematical model of aerodynamic extension of a polymer jet was developed with consideration of its hyperelastic properties. The results of an experimental study of aerodynamic extension of equiviscous solutions in DMF of acrylonitrile copolymers (ANCP) with different specific viscosity are reported. The calculated and experimental characteristics of aerodynamic spinning from polymer solutions are compared. The determining role of hyperelastic strain in strengthening of the jet in stretching it in the secondary spinnability zone is established.     

水性聚氨酯功能性研究进展

综述了水性聚氨酯在合成功能高分子材料上的研究进展，介绍了生物降解水性聚氨酯、纳米材料必性水性聚氨酯、导电水性聚氨酯、聚合物发光器件、光固化水性聚氨酯、水性聚氨酯高分子染料、抗菌水性聚氨酯和聚氨酯水凝胶等水性聚氨酯功能材料的特点及研究进展，并对功能性的水性聚氨酯的发展作了展望。     

新型水性单组分自交联型丙烯酸核/壳聚合物

利用最新的自交联工艺制取了有独特核／壳结构的新型水性丙烯酸树脂。用这些树脂所配制的涂料具有优良的耐磨性，打磨性、良好的硬度和出色的耐水性与耐各种化学品(如丙酮和甲乙酮)性。本文描述了这些新近开发的水性自交联丙烯酸核／壳树脂的设计、合成、特性和涂层性能，还讨论了材料结构和涂料性能间的关系。     

Process Intensification in the Production of Specialty Waterborne Polymers

Summary: The feasibility of obtaining specialty waterborne adhesives in a CSTR was investigated facing the possibility of replacing the traditional semi‐batch reactors, which are commonly used in their production by a more efficient system. The key aspects focused on this work were the safety of the process, the kinetic feasibility, and the quality of the products, having as a reference the adhesive performance of the polymers produced in the semi‐batch reactors. Simulations showed that the production of 280 tons per week could be safely carried out even using mean residence times as short as 10 min. From a kinetic point of view, it was found that under these conditions, reasonable high conversions could be achieved in the reactor, resulting on a high production per unit volume of reactor. Furthermore, the adhesive properties of the latex were analyzed, and a much higher shear resistance was found for the latexes produced in the continuous reactor, while peel resistance and tack were found to be very similar disregarding the type of reactor used.

Safe process conditions in a CSTR.     

A Mathematical Model for Amorphous Polymers Based on Concepts of Reptation Theory

Mechanical behaviors of amorphous polymers have been investigated in all aspects from macroscopic thermodynamics to molecular dynamics in past five decades. Most models either have too complex mathematics or can only explain mechanical behaviors of specific materials under certain defined conditions. In this article, a mathematical model is proposed to understand mechanical behaviors of amorphous polymers with aid of the concepts of reptation theory. This new model is capable to match most experimental results of different amorphous polymers for a wide range of time and temperature effect from rubber zone to glassy zone. Above glass transitional temperature, the model shows hyperelastic behavior. Below glass transitional temperature, elastic–viscoplastic properties can be obtained. In the proposed model, no yielding surface is assumed. Hyperelasticity and Mullin's effect are illustrated in a different way without assuming strain energy function in advance. Yielding stress is controlled by Young's moduli, defect density, and defect velocity of molecular chains. Anisotropic plasticity is simply controlled by anisotropic Young's moduli. Therefore, no additional anisotropic parameters are needed to define anisotropic yielding surface. Strain rate, temperature, and hydrostatic pressure effects on yielding stress are through their effect on Young's moduli. Linear elastic, hyperelastic, viscoelastic, and viscoplastic models are put into one single equation, which makes the mathematical structure very easy to understand and easy to use. This model is validated by comparing with five existed experimental data. Proposed model also shares some features similar to the old well‐known large deformation models for amorphous polymers. POLYM. ENG. SCI., 59:2335–2346, 2019. © 2019 Society of Plastics Engineers     

浅析水性涂料特性及其应用

水性涂料具有较强的表面张力、较高的汽化温度以及一定的触变性。与溶剂涂料相比,水性涂料具有良好的环保特性。水性涂料在室内装修、铁道车辆、汽车工业、船舶工业以及塑料化工中得到了广泛应用。水性涂料大大地降低了VOC的含量,顺应了环保的要求,具有良好的发展前景。随着对水性涂料的研究逐渐深入,必将推动环保涂料的应用,进而促进整个环保事业的发展。     

Flammability Characteristics of Polymers

In recent years polymers have become versatile and widely accepted materials in almost every conceivable application. Many of these applications involve the possibility of exposure to fire hazards. Upon exposure to a sufficient heat source and sufficient atmospheric oxygen, these materials catch fire and bum. However, the rate of combustion varies from polymer to polymer. The overall fire hazard is therefore a function not only of the fire performance of a polymer, but also the degree of exposure of the polymer to fire.