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<\/p>","protected":false},"excerpt":{"rendered":"Soluble PVA is soluble in water, the higher the water temperature, the greater the solubility, but it is almost insoluble in organic solvents.\u00a0The solubility of PVA varies with the degree of alcoholysis and degree of polymerization. PVA with partial alcoholysis and low polymerization degree dissolves extremely fast, while PVA with complete alcoholysis and high polymerization degree dissolves slowly. As a general rule, the degree of alcoholysis is greater than the degree of polymerization for the influence on the solubility of PVA. some can swell at room temperature in water,such as JOYFORCE 0588, 1788, 2488. The others are easily soluble in water at room temperature,such JOYFORCE PVA0599, 1799, 2699.\u00a0The PVA dissolution process is carried out in stages, namely: affinity wetting-swelling-infinite swelling-dissolution.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Soluble Le PVA est soluble dans l'eau, plus la temp\u00e9rature de l'eau est \u00e9lev\u00e9e, plus la solubilit\u00e9 est grande, mais il est presque insoluble dans les solvants organiques. La solubilit\u00e9 de l'APV varie en fonction du degr\u00e9 d'alcoolisation et du degr\u00e9 de polym\u00e9risation. Le PVA pr\u00e9sentant une alcoolyse partielle et un faible degr\u00e9 de polym\u00e9risation se dissout extr\u00eamement rapidement, tandis que le PVA pr\u00e9sentant une alcoolyse compl\u00e8te et un degr\u00e9 de polym\u00e9risation \u00e9lev\u00e9 [...]<\/p>","protected":false},"author":1,"featured_media":801,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-800","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"\n