Selvol is a brand name for a range of polyvinyl alcohol (PVA) products manufactured by Sekisui Specialty Chemicals. Polyvinyl alcohol is a synthetic polymer that has a variety of industrial applications due to its excellent film-forming, adhesive, and water-soluble properties. Selvol, as a specific formulation of PVA, has been developed to cater to a wide array of industries such as food packaging, adhesives, textile processing, and paper coatings.Polyvinyl alcohol, including Selvol, is produced by the hydrolysis of polyvinyl acetate (PVAc), which results in a polymer that is highly water-sol

聚乙烯醇（PVA）是一种合成高分子化合物，具有良好的水溶性、成膜性和粘合性，因此在众多行业中有着广泛的应用。其化学结构由乙烯基醇单元（CH2=CHOH）组成，通常通过乙酸乙烯酯（VAE）聚合物水解得到。聚乙烯醇是无毒、无刺激性的，且具有较高的生物降解性，因此在环保和可持续发展方面具有较大的优势。聚乙烯醇聚乙烯醇的物理化学性质因其分子量和水解度的不同而有所差异。其最突出的特点是水溶性。PVA的水溶性使其能够在水中迅速溶解，并能形成均匀的溶液，这一特点使其广泛应用于需要水溶解或水解的领域。PVA的溶解性与其水解度有关，水解度较高的PVA溶解速度较快，水解度较低的则相对较慢。此外，PVA具有较好的成膜性和较强的粘合力，这使得它能够用于各种涂层和粘合剂中。纺织工业： 聚乙烯醇在纺织工业中作为一种常见的上浆剂使用。它可以在纤维表面形成一层薄膜，起到防止纤维断裂、提高织造效率的作用。PVA在织布过程中能够减少摩擦，提高纱线的强度和光泽，且在织造过程中不易脱落。它不仅能改善纤维的强度，还能在后处理过程中被水洗掉，符合环保要求。纸张和涂料工业： 聚乙烯醇在纸张生产中常用作纸张涂料的粘合剂，能够提高纸张的强度和表面光滑度，改善纸张的印刷效果。在涂料行业，PVA也作为一种增稠剂和稳定剂，能够改善涂料的性能。

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