产业用涂层织物加工技术的探讨

叙述了产业用涂层织物的加工方法和涂层方式，介绍了用于涂层织物上的几种涂层剂和产业用涂层织物的应用，并预测产业用涂层织物具有广阔的市场前景。     

功能纺织品有机硅涂层技术

有机硅涂层的功能特性不仅取决于有机硅本身物理性能，而日_也因涂层工艺不同而有异。在有机硅涂层剂配方中加入一些添加剂可有效改善涂层性能，例如阻燃性和热稳定性。会影响涂层加工工艺的涂层剂性能有粘度、固化速度、比蕈和流变性，其中流变性更为重要。在涂层剂中添加填充剂，可影响其流变性，常用填充剂有硅、树脂和石英，它们可增强涂层强度、弹性，也可降低摩擦系数。影响涂层表面特性的最重要因索是涂层剂渗透度与成膜性之间的平衡，降低涂层剂的粘度和触变性可使涂层剂有较好渗透性，而利用刮刀涂层也可增加其渗透性。     

涂层织物的开发及应用

本文叙述了涂层织物的加工方法和涂层方式，介绍了用于涂层织物上的几种涂层剂，重点讨论了层织物的开发及应用。     

涂层整理是国际上当今纺织工业的一个新兴行业——浅论涂层产品生产及其领域的产品发展

从涂层整理特点入手，结合生产实际讨论涂层产品的发展空间。     

聚氯乙烯涂层织物撕破强度研究

通过对涂层剂组成的调整，研究影响聚氯乙烯涂层织物撕裂强度的因素。结果表明，增塑剂含量增加，增塑效率提高使涂层织物撕裂强度降低。     

聚丙烯酸酯（PA）涂层剂和产品（一）

本文较详细和系统地介绍了国内有关聚丙烯酸酯涂层剂和产品情况，以及近十年来取得的成果。作者对涂层剂的合成和涂层设备工艺、产品等从技术上进行了归纳、分析和论述。认为国内对以ＰＡ为涂层剂的干法直接涂层，整套技术能基本掌握，今后可继续提高和改进，并提出了具体发展方向。     

有机硅精细涂层胶

简要介绍了织物涂层胶的分类及特点，着重评述了有机硅涂层胶的特性、结构及应用，并展望了有机硅涂层胶的发展趋势。     

聚氨酯涂层剂测试方法

本文介绍了溶剂型和乳液型聚氨酯（ＰＵ）涂层剂的红外分析法，对红外谱带与基团振动列表对照，有利于区分异氰酸酯类别。文章重点介绍了ＰＵ涂层剂的一般和专项性能测试，对提高和稳定涂层剂和涂层产品质量有一定帮助。     

热喷陶瓷涂层与金属陶瓷涂层技术在造纸机械领域的应用

简述一些关于热喷陶瓷、金属陶瓷涂层在造纸机械中的一些应用，并比较了耐磨涂层、亲水涂层、防粘涂层和防滑涂层的应用实例。     

乳液聚合涂层胶的探析

随着服装市场的发展与变化。多功能涂层面料在服装、鞋帽等诸多领域的应用更为广泛，特种整理的面料产品开发，是适应当前市场的需要．国际市场上涂层面料及各种用途涂层产品大量涌现纯棉、锦纶、涤纶及其他面料防雨、防风、防羽绒更为普遍，国内也在开发和研究这一技术。涂层产品性能特点与所选用的涂层胶及所选用的基布有很大的关系，特别是涂层胶的性能决定着涂层产品的质量。因此．研究涂层胶是开发涂层面料的基础。     

改良壳聚糖涂膜技术对草鱼肉抑菌保鲜效果的研究

壳聚糖溶液涂膜是一种新兴的保鲜技术,具有较好的保鲜效果和优越性,但尚存在成膜较慢、不易操作、膜层厚度难控制等缺点,因而改善涂膜液的组成和涂膜技术是涂膜保鲜的关键。本文研究了新的涂膜方式和添加易挥发的乙醇来改进壳聚糖涂膜液的成膜和抑菌效果。通过改变不同乙醇浓度、壳聚糖浓度和涂膜方式等条件,分析其对冷藏过程中草鱼肉的微生物菌落总数和TVB-N值的影响。结果表明,涂膜溶液中含有75%的乙醇时,不仅对冷藏草鱼肉的抑菌效果好,而且还具有减菌作用,使样品初始微生物菌落总数降低超过51%;壳聚糖浓度为1.0%时,涂膜液的成膜效果及对草鱼肉的抑菌效果均较好;此外,涂膜方式对其效果影响不明显,但喷雾涂膜处理相对方便、经济。因此,以含有75%乙醇的壳聚糖酸性涂膜保鲜剂喷雾涂膜是一种成膜和抑菌效果均好的改良型鱼肉保鲜技术。     

造纸颜料涂布技术的进展与展望

描述了涂布纸的原纸、涂料和施涂工艺三大要素，以及涂层的干燥、固化如何影响涂布纸的质量。最后，介绍了涂布技术的未来发展趋势。     

采用扫描电镜和图像分析表征帘式涂布涂层中的孔隙结构和粘土取向

造纸行业对高速帘式涂布非常感兴趣,因为帘式涂布可以不使用与网接触的机械计量设备而达到生产高涂布量的涂布纸和纸板的目的。该具有计量功能的涂布工艺避免了很多在计量过程中与高剪切相关的问题和由此带来的缺陷。而且,帘式涂布可以形成覆盖率良好且均匀的涂层。尽管越来越多工厂使用帘式涂布工艺,但对帘式涂布形成涂层的结构特征的研究却很少。在此次研究中,我们将会分析商业化生产的帘涂牛卡纸和纸板的涂层结构,并使用横截面图像分析技术来表征涂层结构。对帘式涂布纸的结构参数如孔隙尺寸分布、颗粒取向以及涂层厚度的均匀性进行了评价,并与传统的刮刀涂布和膜涂布纸进行了对比。结果表明,帘式涂布形成的涂层结构具有更松厚且更多孔等优点。粘土粒子在帘式涂层中分布更均匀,这也表明了帘式涂布具有良好的涂布覆盖率以及涂层厚度均匀性。     

Effect of Sodium Chloride Particle Size and Shape on Nonelectrostatic and Electrostatic Coating of Popcorn

ABSTRACT: Sodium chloride of different shapes (hollow pyramid, crushed flake, cube, and porous cube) and sizes (50-200 mesh) were applied by nonelectrostatic and electrostatic powder coating to popcorn coated with 1.2 to 3.3% soybean oil. Electrostatic coating was more efficient than nonelectrostatic in all cases. The smaller the particles, the higher the coating efficiency for both electrostatic and nonelectrostatic coating. Crushed flake and hollow pyramid were more efficient than cube and porous cube shapes. Coating efficiency improved as the oil content increased for nonelectrostatic but not electrostatic coating. Use of electrostatic coating can reduce waste and provide a more efficient coating method by decreasing seasoning or oil needed to reach the target level.     

气刀涂布的应用、改进及发展

气刀涂布在当今多种涂布方式中仍占有重要地位,在某些特种纸及白纸板、箱纸板的涂布中经常使用。本文阐述了气刀涂布系统的主要特性,分析了其适用性并展望了其发展前景,对气刀、气料分离器及上料机构等元件提出了改进意见,这适合于中国当今使用的多数气刀涂布机的改造,得到提高产品质量、产量、改善工作环境及节能降耗的效果。     

Water resistance and mechanical properties of biopolymer (alginate and soy protein) coated paperboards

The effect of biopolymer coating on the water barrier and mechanical properties of paperboards used as corrugated fiberboard box liners was studied under several conditions. Paperboards were coated with selected biopolymers, such as alginate and soy protein isolate (SPI) and studied with or without further treatment, such as cross-linking through CaCl₂ or formaldehyde treatment and compositing with organically modified montmorillonite (OMMT). Biopolymer coating increased the thickness of paperboards from 9% to 16%, depending on the coating materials and treatment methods, and resulted in a smoother and more homogeneous surface. Though the tensile strength (TS) of the coated paperboards decreased from 12.5% to 37.5% of the uncoated paperboards by coating, ring crush strength was not decreased. Wetting properties, such as contact angle of water drop, dynamic change in contact angle, water vapor permeability (WVP), and water absorptivity were also affected by biopolymer coating, but the degree of change was dependent on the coating materials as well as treatment methods. For example, the rate of change in contact angle of water on paperboards decreased dramatically from 1.4 to 3.8 times depending on the coating materials as well as treatment methods. Generally, SPI-coated paperboards were more water-resistant than alginate coated ones. However, water resistance of the alginate-coated paperboards post-treated with the CaCl₂ solution was comparable to the SPI coated ones.     

纳米抗紫外防水涂层织物的研究

通过对常规的和纳米材料的抗紫外性能以及各种涂层剂的防水性能试验对比，研究纳米抗紫外整理剂和溶剂、PU涂层胶、PA涂层胶与珠光粉、银浆等配套助剂的相容性等，最终选用性能优异的纳米抗紫外整理剂M。在珠光涂层中，添加2％该抗紫外整理剂，能显著提高产品抗紫外性能，UPF等级可达到30以上。     

Modeling nonelectrostatic and electrostatic powder coating

The effect of particle size, density, charge and air velocity on transfer efficiency, evenness and separation of mixtures during powder coating was investigated using modeling and experimentation. Electrostatic and nonelectrostatic coating was tested using 28, 234 and 342 μm NaCl and 195 μm starch powders. Transfer efficiency increased as particle size, density or charge increased or as air velocity decreased. Evenness increased as particle size or density decreased, as velocity increased, or as charge increased to a peak. Electrostatic coating produced higher transfer efficiency and evenness than nonelectrostatic coating. Improvement in transfer efficiency and evenness due to electrostatics increased as NaCl size, density, charge or air velocity decreased. Powder mixtures did not separate by size during coating but did separate by density and charge. Starch was affected more by the collisions and charging than NaCl, which caused the separation.     

水性光敏树脂的合成及其在纸张涂布中的应用

以环氧树脂、丙烯酸、马来酸酐为原料合成水性光敏树脂,讨论了原料投料比、反应温度、催化剂等因素对合成水性光敏树脂性能的影响;并以滤纸为例,初步研究了水性光敏树脂在低紧度纸张涂布中的应用工艺。结果显示,经过水性光敏树脂涂布后,纸张的物理性能得到了明显改善,并且水性光敏树脂在使用过程中具有快速、环保的特点。     

涤纶牛津布阻燃防紫外复合整理

对染色涤纶牛津布用UV-531防紫外线整理剂、阻燃剂及银粉进行复合涂层整理，以赋予织物多种功能。比较了不同阻燃剂、UV-531整理剂用量和铝粉浆用量对涂层效果的影响，例举了底涂和面涂处方，并就相关工艺参数（底涂量的控制、刀的厚度、阻燃剂和溶剂的选择等）进行了分析讨论。结果表明，选择磷氯类阻燃剂DJ-508和磷氮类阻燃剂共同作用，25％的UV-531防紫外线整理剂用量，合理选择银粉涂层整理工艺参数，可得到优良的整理效果。