磬海商贸 德国瓦克 EP760

VINNAPAS? EP760是一种独特的、快速定型的乙烯-乙酰乙烯共聚物。它不仅仅是一种高固版的VINNAPAS系列分散物，而且是一种与非常难以粘合的基材（包括聚酯、聚对苯二甲酸乙烯、回火铝箔和聚苯乙烯）有显著附着力的聚合物。分散剂将高固形物含量与低粘度相结合，这种组合允许添加很高的填料负载，从而形成固体含量高达80%甚至更高的胶粘剂配方。在添加增塑剂的情况下，分散剂不会过度增稠，因为增塑剂也可用于制备高固体粘合剂。VINNAPAS? EP760 有非常稳定的抗剪切性，这意味着它可以适用于高速包装机器使用辊，挤压或喷雾设备。分散干燥到一个轻微粘性，透明，防水膜。

性能

VINNAPAS? EP760可以类似VINNAPAS?706k的方式进行复合，并接受所有常用的增塑剂、溶剂、增粘剂和填充剂与醋酸乙烯分散使用。分散体接受大量填料，如粘土和碳酸钙，不会过度增厚。添加增塑剂和溶剂后，它也不会迅速变稠，这是一种在中等粘度下需要高固体的有用性质。它与其他乙烯基乙酸酯聚合物兼容，包括pvac均聚物、丙烯酸晶格和VINNAPAS分散。

应用

VINNAPAS EP760高固含量和优异的附着力，使其在粘结PVC膜到颗粒板上特别有用，低含水率降低了木材的膨胀。在聚酯、聚对苯二甲酸乙二醇酯、聚偏二氯乙烯和聚苯乙烯涂层或未涂布纸等层合薄膜中，分散性极好地附着于不易粘结的表面。它显示出良好的粘附金属化膜和回火铝箔。ViNAPAS?EP760的快速设置速度使其在高速封装应用中非常有用。高固体含量在装订中也十分重要。透明膜和优异的分散性在膜覆盖层合中是重要的。

VINNAPAS EP760的典型应用领域如下:
-包装(窗户纸箱及纸箱成型)
信封和装订
纺织品和家具
-PVC层压和OPP湿层压。
包装难以粘合基质。
-卷烟翻/封边和包装。

贮存

When the dispersion is stored in tanks, proper storage conditions must be maintained. VINNAPAS? EP760 has a shelf life of 6 months after manufacture if stored in the original, unopened containers at cool (below 30 °C), but frost-free temperatures. Iron or galvanized-iron equipment and containers are not recommended because the dispersion is slightly acidic. Corrosion may result in discoloration of the dispersion or its blends when further processed. Therefore the use of containers and equipment made of ceramics, rubberized or enameled materials, appropriately finished stainless steel, or plastic (e.g. rigid PVC, polyethylene or polyester resin) is recommended.

保鲜运输，存储和进一步处理

VINNAPAS? EP760 is adequately preserved during transportation and storage if kept in the original, unopened containers. However, if it is transferred to storage tanks, the dispersion should be protected against microbial attack by adding a suitable preservative package. Measures should also be taken to ensure cleanliness of the tanks. In unstirred tanks, a layer of preservative-containing water should be sprayed onto the surface of the dispersion to prevent the formation of unwanted skin and possible attack by microorganisms. The thickness of this water layer should be < 5 mm for low viscosity dispersions and up to 10–20 mm for high viscosity products. Measures should be taken to ensure that only bacteria-free air enters the tank when the dispersion is removed. Finished products manufactured from polymer