{"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":"alcool-polivinilico-pva-1788","status":"publish","type":"product","link":"https:\/\/rawchemicalmart.com\/pt\/produto\/alcool-polivinilico-pva-1788\/","title":{"rendered":"\u00c1lcool polivin\u00edlico (PVA) 17-88 \/ PVA 088-20"},"content":{"rendered":"

Especifica\u00e7\u00f5es:<\/h2>\n
\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Item<\/th>Especifica\u00e7\u00e3o<\/th>M\u00e9todo de teste \/ Nota<\/th>\n<\/tr>\n<\/thead>\n
Nome do produto<\/td>\u00c1lcool polivin\u00edlico (PVA) 17-88 \/ 1788<\/td><\/td>\n<\/tr>\n
Apar\u00eancia<\/td>P\u00f3\/part\u00edcula branca<\/td><\/td>\n<\/tr>\n
Grau de alcoolismo<\/td>86,00 - 90,00 mol%<\/td>(Parcialmente Hidrolisado)<\/td>\n<\/tr>\n
Viscosidade<\/td>19,5 - 32,0 mPa.s<\/td>(Solu\u00e7\u00e3o aquosa de 4% a 20\u00b0C)<\/td>\n<\/tr>\n
Conte\u00fado vol\u00e1til<\/td>\u2264 5,0 wt%<\/td><\/td>\n<\/tr>\n
Pureza<\/td>\u2265 93,5 wt%<\/td>(Valor calculado)<\/td>\n<\/tr>\n
Valor de pH<\/td>5 ~ 7<\/td><\/td>\n<\/tr>\n
Conte\u00fado de cinzas<\/td>\u2264 0,5 wt%<\/td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Observa\u00e7\u00e3o<\/b>A viscosidade \u00e9 medida em uma solu\u00e7\u00e3o aquosa de 4%. A pureza \u00e9 um valor calculado.<\/div>\n

Aplica\u00e7\u00f5es:<\/h2>\n
\n

Nosso PVA 1788 foi projetado para diversas aplica\u00e7\u00f5es industriais:<\/p>\n

    \n
  • \n

    Ind\u00fastria de adesivos<\/b>Atua como aglutinante prim\u00e1rio para adesivos de papel, madeira e t\u00eaxteis. Sua forte capacidade de ades\u00e3o o torna ideal para colas de escrit\u00f3rio e adesivos de embalagem.<\/p>\n<\/li>\n

  • \n

    Materiais de constru\u00e7\u00e3o<\/b>Utilizado como aditivo em argamassas secas, massas e adesivos para azulejos. Melhora a reten\u00e7\u00e3o de \u00e1gua, a flexibilidade e a resist\u00eancia de ader\u00eancia do material ciment\u00edcio.<\/p>\n<\/li>\n

  • \n

    Processamento de papel<\/b>Melhora a resist\u00eancia da superf\u00edcie, a imprimibilidade e a resist\u00eancia a \u00f3leos de produtos de papel.<\/p>\n<\/li>\n

  • \n

    Processamento de filmes<\/b>Devido \u00e0s suas excelentes propriedades de forma\u00e7\u00e3o de filme, \u00e9 utilizado na fabrica\u00e7\u00e3o de filmes sol\u00faveis em \u00e1gua e revestimentos protetores.<\/p>\n<\/li>\n

  • \n

    Ind\u00fastria de estabilizadores<\/b>Atua como um emulsificante eficaz e coloide protetor na polimeriza\u00e7\u00e3o de emuls\u00f5es de acetato de vinila (PVAc).<\/p>\n<\/li>\n

  • \n

    Moldagem de pl\u00e1stico<\/b>Utilizado como agente desmoldante e modificador de superf\u00edcie na produ\u00e7\u00e3o de pl\u00e1sticos.<\/p>\n<\/li>\n<\/ul>\n

    Embalagem:<\/h2>\n

    25 kg por saco.<\/p>\n

    Produto<\/b><\/strong>\u00a0Armazenar:<\/b><\/strong><\/h2>\n

    Armazene em local fresco, seco e bem ventilado. Mantenha longe da umidade e da luz solar direta para preservar a qualidade do produto.<\/p>\n<\/div>\n

    PERGUNTAS FREQUENTES:<\/h2>\n

    P: Qual a diferen\u00e7a entre PVA 1788 e PVA 2488?<\/b><\/p>\n

    A: A principal diferen\u00e7a reside em viscosidade<\/b> e grau de polimeriza\u00e7\u00e3o<\/b>. O PVA 1788 normalmente apresenta uma viscosidade menor (19,5-32,0 mPa.s) em compara\u00e7\u00e3o com o PVA 2488, tornando o 1788 mais adequado para aplica\u00e7\u00f5es que exigem dissolu\u00e7\u00e3o mais r\u00e1pida e menor espessura da solu\u00e7\u00e3o. Ambos s\u00e3o graus parcialmente hidrolisados.<\/p>\n

    P: O PVA 1788 \u00e9 sol\u00favel em \u00e1gua fria?<\/b><\/p>\n

    A: O PVA 1788 \u00e9 um grau parcialmente hidrolisado (86-90%), que geralmente oferece melhor solubilidade em \u00e1gua do que os graus totalmente hidrolisados. Ele pode se dissolver em \u00e1gua morna, mas para dissolu\u00e7\u00e3o completa e desempenho ideal, recomenda-se o aquecimento a temperaturas espec\u00edficas (normalmente em torno de 80-90 \u00b0C), dependendo do processo de aplica\u00e7\u00e3o espec\u00edfico.<\/p>\n

    P: O PVA 1788 pode ser usado em adesivos para embalagens de alimentos?<\/b><\/p>\n

    A: Sim, devido \u00e0 sua natureza n\u00e3o t\u00f3xica e excelentes propriedades adesivas, o PVA 1788 \u00e9 frequentemente usado em adesivos para embalagens de papel que podem entrar em contato indireto com produtos aliment\u00edcios.<\/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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