Vinyl Acetate Monomer oo nadiif ah 99.9%

Gaar ahaan: 180kg / durbaan

Vinyl acetate monomer, oo loo soo gaabiyo VAM oo sidoo kale loo yaqaano acetic acid vinyl ester ama ethenyl acetate, waa dareere aan midab lahayn, ololaya oo leh dabeecad macaan, ur miro leh. Alaabtayada nadiifinta aadka u sarreeya ee 99.9% waxay bixisaa tayada gaarka ah ee wax soo saarka polyvinyl acetate, ethylene-vinyl acetate copolymers, iyo codsiyada polymerization kala duwan ee u baahan waxqabadka monomer joogto ah.

Sida ester-ka acetate-ka ugu fudud ee aan la karin, vinyl acetate wuxuu leeyahay isku-dhafka gaarka ah ee shaqeynta vinyl-ka polymerizable iyo kooxaha ester-ka. Isku-xidhka laba-jibbaaran ee kaarboon-kaarboon-ku-kordhinta-ku-meel-gaarka ah ayaa awood u siinaya polymerization-ka-free-radical, halka beddelka acetate-ku uu bixiyo qaab-dhismeed adag iyo koronto-dhal ah oo guryaha polymer-ka ah. Nashqadan molecular-ka ah waxa ay taageertaa soo saarista polymers-ka oo leh adhesion aad u fiican, hufnaanta indhaha, iyo kala duwanaanshaha codsiyada qaabaynta.

Xabagta iyo warshadaha dahaarka waxay ka dhigan yihiin qaybta codsiga ee ugu weyn ee VAM, halkaas oo polyvinyl acetate (PVAc) homopolymers iyo copolymers ay u adeegaan sida xidhayaasha aasaasiga ah ee xabagta alwaax, dahaarka waraaqaha, rinjiyada, iyo dhammaynta dunta. Ku dhejinta gaarka ah ee substrates-ka cellulosic iyo la jaanqaadida waxyaabaha lagu daro ee kala duwan ayaa ka dhigaya alaabada ku saleysan PVAc ee lagama maarmaanka u ah dhismaha, baakadaha, iyo soosaarka alaabta macaamiisha. Ethylene-vinyl acetate (EVA) copolymers, oo laga soo saaro VAM iyo ethylene, waxay bixiyaan dabacsanaan, walxo adag oo loogu talagalay xabagyada kululaynta, daboolayaasha unugyada qorraxda, iyo codsiyada kabaha.

Codsiyada dheeriga ah waxay ka kooban yihiin wax soo saarka alkolada polyvinyl (PVOH) iyada oo loo sii marayo PVac hydrolysis ee filimaanta biyaha ku milma iyo dahaarka xayndaabka, vinyl acetate-ethylene (VAE) emulsions ee rinji wax qabad sare leh, iyo copolymers khaas ah oo loogu talagalay calalinta saldhiga xanjada iyo qaabaynta dawooyinka la xakameeyey. Xarunta ayaa sidoo kale u adeegta sida dhexdhexaadinta kiimikaad ee soo saarista acetaldehyde iyo acetic anhydride iyada oo loo marayo dib u habeyn kulka.

99.9% saafiga ah vinyl acetate monomer waxay la kulmeysaa qeexitaanno heersare ah oo polymerization ah oo loogu talagalay waxyaabaha aldehyde aadka u hooseeya, aysidhka ugu yar, iyo heerarka xakamaynta xakamaynta (sida caadiga ah hydroquinone ama diphenylamine), hubinta kinetics polymerization ee la isku halayn karo, qaybinta miisaanka unugyada joogtada ah, iyo alaabooyinka polymer-ka tayada sare leh ee soo saarayaasha soo saarayaasha iyo soo saarayaasha polymer codsiyada warshadaha.

Shirkaddayadu waxay si qoto dheer ugu hawlan tahay warshadaha kiimikada waxayna inta badan wax ka qabataa noocyo kala duwan oo alaabta ceeriin kiimikaad ah sida surfactants, kiimikooyinka ganaaxa ee saliidda, alaabta ceeriin ee aasaasiga ah, dareerayaasha organic, dhexdhexaadinta dawooyinka iyo sunta cayayaanka, wakiilada daaweynta biyaha, iyo cuntada lagu daro. Alaabooyinkeeda ayaa si weyn looga isticmaalaa warshado kala duwan.

Kiimikadayada sida aadka ah loo iibiyo waxaa ka mid ah dareerayaasha warshadaha iyo dhexdhexaadiyeyaasha kiimikaad, sida Taxanaha Alcohol, Taxanaha Ether, Esters, Precursor Series, Acid-Ester Solvents, Bacrimiyeyaasha NPK-Biyaha-Milan, iyo Kiimikada kale ee Warshadaha. Alaabooyinkani waxay ka kooban yihiin sahay deggan, nadiifnimo la isku halayn karo, iyo heerar tayo leh oo joogto ah. Weydiinta waa la soo dhawaynayaa.