{"id":12104,"date":"2026-01-21T13:04:19","date_gmt":"2026-01-21T13:04:19","guid":{"rendered":"https:\/\/rawchemicalmart.com\/?post_type=product&p=12104"},"modified":"2026-01-23T06:43:52","modified_gmt":"2026-01-23T06:43:52","slug":"alcol-polivinilico-pva-1788","status":"publish","type":"product","link":"https:\/\/rawchemicalmart.com\/it\/prodotto\/alcol-polivinilico-pva-1788\/","title":{"rendered":"Alcol polivinilico (PVA) 17-88 \/ PVA 088-20"},"content":{"rendered":"

Specifiche:<\/h2>\n
\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Articolo<\/th>Specificazione<\/th>Metodo di prova \/ Nota<\/th>\n<\/tr>\n<\/thead>\n
Nome del prodotto<\/td>Alcol polivinilico (PVA) 17-88 \/ 1788<\/td><\/td>\n<\/tr>\n
Aspetto<\/td>Polvere\/particelle bianche<\/td><\/td>\n<\/tr>\n
Grado di alcolisi<\/td>86,00 - 90,00 mol%<\/td>(Parzialmente idrolizzato)<\/td>\n<\/tr>\n
Viscosit\u00e0<\/td>19,5 - 32,0 mPa.s<\/td>(soluzione acquosa di 4% a 20 \u00b0C)<\/td>\n<\/tr>\n
Contenuto volatile<\/td>\u2264 5,0 wt%<\/td><\/td>\n<\/tr>\n
Purezza<\/td>\u2265 93,5 wt%<\/td>(Valore calcolato)<\/td>\n<\/tr>\n
Valore del pH<\/td>5 ~ 7<\/td><\/td>\n<\/tr>\n
Contenuto di cenere<\/td>\u2264 0,5 wt%<\/td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Nota<\/b>La viscosit\u00e0 viene misurata su una soluzione acquosa di 4%. La purezza \u00e8 un valore calcolato.<\/div>\n

Applicazioni:<\/h2>\n
\n

Il nostro PVA 1788 \u00e8 progettato per diverse applicazioni industriali:<\/p>\n

    \n
  • \n

    Industria degli adesivi<\/b>Agisce come legante primario per adesivi per carta, legno e tessuti. La sua elevata forza adesiva lo rende ideale per colle da ufficio e adesivi per imballaggi.<\/p>\n<\/li>\n

  • \n

    Materiali da costruzione<\/b>Utilizzato come additivo in malte premiscelate, stucchi e adesivi per piastrelle. Migliora la ritenzione idrica, la flessibilit\u00e0 e la forza di adesione del materiale cementizio.<\/p>\n<\/li>\n

  • \n

    Lavorazione della carta<\/b>Migliora la resistenza superficiale, la stampabilit\u00e0 e la resistenza all'olio dei prodotti di carta.<\/p>\n<\/li>\n

  • \n

    Sviluppo delle pellicole<\/b>Grazie alle sue eccellenti propriet\u00e0 filmogene, viene utilizzato per la produzione di pellicole idrosolubili e rivestimenti protettivi.<\/p>\n<\/li>\n

  • \n

    Industria degli stabilizzatori<\/b>Agisce come emulsionante efficace e colloide protettivo nella polimerizzazione delle emulsioni di acetato di vinile (PVAc).<\/p>\n<\/li>\n

  • \n

    Stampaggio della plastica<\/b>Utilizzato come agente distaccante e modificatore di superficie nella produzione di materie plastiche.<\/p>\n<\/li>\n<\/ul>\n

    Imballaggio:<\/h2>\n

    25 kg per sacco.<\/p>\n

    Prodotto<\/b><\/strong>\u00a0Magazzinaggio:<\/b><\/strong><\/h2>\n

    Conservare in un luogo fresco, asciutto e ben ventilato. Tenere lontano da umidit\u00e0 e luce solare diretta per preservare la qualit\u00e0 del prodotto.<\/p>\n<\/div>\n

    Domande frequenti:<\/h2>\n

    D: Qual \u00e8 la differenza tra PVA 1788 e PVA 2488?<\/b><\/p>\n

    A: La differenza principale sta nel viscosit\u00e0<\/b> E grado di polimerizzazione<\/b>. Il PVA 1788 ha in genere una viscosit\u00e0 inferiore (19,5-32,0 mPa\u00b7s) rispetto al PVA 2488, il che lo rende pi\u00f9 adatto per applicazioni che richiedono una dissoluzione pi\u00f9 rapida e una minore viscosit\u00e0 della soluzione. Entrambi sono gradi parzialmente idrolizzati.<\/p>\n

    D: Il PVA 1788 \u00e8 solubile in acqua fredda?<\/b><\/p>\n

    A: Il PVA 1788 \u00e8 un tipo parzialmente idrolizzato (86-90%), che generalmente offre una migliore solubilit\u00e0 in acqua rispetto ai tipi completamente idrolizzati. Pu\u00f2 sciogliersi in acqua calda, ma per una dissoluzione completa e prestazioni ottimali, si consiglia di riscaldarlo a temperature specifiche (in genere intorno agli 80-90 \u00b0C) a seconda del processo di applicazione specifico.<\/p>\n

    D: Il PVA 1788 pu\u00f2 essere utilizzato negli adesivi per imballaggi alimentari?<\/b><\/p>\n

    R: S\u00ec, grazie alla sua natura atossica e alle eccellenti propriet\u00e0 adesive, il PVA 1788 viene spesso utilizzato negli adesivi per imballaggi di carta che possono entrare in contatto indirettamente con prodotti alimentari.<\/p>","protected":false},"excerpt":{"rendered":"

    Polyvinyl Alcohol 1788 (also known as PVA 088-20) is a partially alcoholized, medium-viscosity grade water-soluble polymer. It is renowned for its excellent film-forming capabilities, strong adhesion, and superior emulsifying properties.\nAs a versatile raw material, our PVA 1788 is widely used across the construction, textile, and adhesive industries. It is soluble in water while remaining resistant to oils, grease, and most organic solvents, making it an essential additive for enhancing the performance of mortar, putty, and industrial adhesives.\n<\/p>","protected":false},"featured_media":12113,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[58],"product_tag":[],"class_list":{"0":"post-12104","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-polyvinyl-alcohol-pva","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"yoast_head":"\nPolyvinyl Alcohol (PVA) 17-88 | Manufacturer & Supplier - RawChemicalMart<\/title>\n<meta name=\"description\" content=\"Buy high-quality Polyvinyl Alcohol 1788 (PVA 088-20) from RawChemicalMart. Partially hydrolyzed grade with 86-90 mol% alcoholysis. Ideal for adhesives, paper processing, and building materials. 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