牌号简介 About |
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全水解级-超级水解Mowiol和Kuraray Poval是Kuraray销售的聚乙烯醇的商品名。它们是由聚醋酸乙烯酯通过连续的醇解过程制成的。通过改变聚醋酸乙烯酯的聚合程度及其水解(皂化)程度,可以提供许多不同等级的聚醋酸乙烯酯。我们的pvoh类型以高标准纯度提供,特别是“低灰份和VOC含量”。乳液胶粘剂的改性、纸胶粘剂的生产和改性。乳液聚合中的保护胶体,以及用于生产尺寸和纺织成品的原料。粘合剂在纸张表面的整理。也可调节各种涂料的加工特性。 Fully hydrolysed grade - super-hydrolysed Mowiol® and Kuraray Poval® are the trade name of the polyvinyl alcohols marketed by Kuraray. These are manufactured from polyvinyl acetate by alcoholysis using a continuous process. By varying the degree of polymerization of the polyvinyl acetate and its degree of hydrolysis (saponification), a number of different grades can be supplied. Our PVOH types are offered in a high standard purity showing especially "low ash and VOC contents". Modification of emulsion adhesives, production of paper adhesives and remoistenable adhesives. Protective colloid in emulsion polymerisation and raw material for the production of sizes and textile finishes. Binder in the surface finishing of paper. Also for regulating the processing characteristics of all types of coatings. |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
溶液粘度 Solution viscosity 2 |
26 到 32 | mPa·s | JIS K6726 |
pH值 PH value 3 |
4.5 到 7.0 | ||
灰份含量 Ash Content 4 |
< 0.70 | % | |
挥发物 Volatiles |
< 5.0 | % | |
补充信息 Supplementary information |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
Degree of Hydrolysis Degree of Hydrolysis 5 |
> 99 | % | |
甲醇可萃取 Methanol extractable |
% |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 4 % aqueous solution at 20 °C, determined by Brookfield synchronised-motor rotary-type viscometer |
3 4 % solution in distilled water |
4 Calculated as Na2O |
5 Saponification |
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