China Polyvinyl mowa (PVOH, PVA, kapena PVAl)omanga opanga ndi ogulitsa

Mowa wa Polyvinyl (PVOH, PVA, kapena PVAl) mukumanga Chithunzi Chowonetsedwa

Polyvinyl mowa (PVOH, PVA, kapena PVAl) pomanga

Mowa wa Polyvinyl (PVOH, PVA, kapena PVAl) ndi polima wosungunuka m'madzi. Ili ndi chilinganizo choyenera [CH2CH(OH)]n. Amagwiritsidwa ntchito popanga mapepala, Glue, ndi zokutira zosiyanasiyana.
Mowa wa Polyvinyl ndi polima wopanda poizoni, wosawonongeka, ndipo zinthu zomwe zili ndi PVA ndizotetezeka kugwiritsa ntchito komanso zotetezeka kudyedwa. Bungwe la Environmental Working Group lidazitcha kuti ndizowopsa kwambiri pazodzikongoletsera, ndipo bungwe la Food and Drug Administration lavomereza PVA kuti igwiritsidwe ntchito popaka zakudya komanso kugwiritsa ntchito mankhwala.

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zogulitsa Tags

Zakuthupi

Maonekedwe	Kusiyana kwamitundu zosaphika zopanda zinyalala	Kusiyana kwamitundu zosaphika zopanda zinyalala
Digiri ya mowa% (mol/mol)	86.5-88.5	87.4
Viscosity mPa.s	45.0-55.0	50.2
Zosasinthika %	≤5	2
Phulusa%	≤ 0.5	0.2
PH	5~7 pa	5
160mesh pass%	≥95	99%

Kugwiritsa ntchito

Mowa wa PVA Polyvinyl umagwiritsidwa ntchito ngati chothandizira kuyimitsa ma polymerizations. Kugwiritsa ntchito kwake kwakukulu ku China ndiko kugwiritsa ntchito kwake ngati colloid yoteteza kupanga polyvinyl acetate dispersions (RDP). Ku Japan ntchito yake yaikulu ndiyo kupanga vinylon fiber.
Amagwiritsidwa ntchito kwambiri mu Glue, Wall putty / Skim Coat, zomatira matailosi / Tile grout ects.

PVA imatha kusungunuka mwachangu, ngakhale m'madzi ozizira. Filimu ya PVA ikasungunuka, mitundu 55 iliyonse ya tizilombo toyambitsa matenda yomwe imapezeka m'makina amadzi otayira imatha kuwononga zomwe zatsala mufilimuyo.

Kupaka ndi Kusunga

Zogulitsazo zimadzaza m'matumba a mapepala ambiri okhala ndi polyethylene yamkati. Net kulemera 25KG. Matumba opanda kanthu atha kukonzedwanso kapena kuwotchedwa. M'matumba osatsegulidwa, mankhwalawa amatha zaka zingapo. M'matumba otsegulidwa, chinyezi cha mankhwalawa chidzakhudzidwa ndi chinyezi cha mpweya.
Sungani pamalo ozizira ndi owuma, pewani kuwala kwa dzuwa. Kusungira pansi pazovuta kuyenera kupewedwa.
Onani MSDS kuti mudziwe zambiri za kagwiridwe, mayendedwe, ndi kasungidwe ka malonda.