China Polyvinyl mmanya (PVOH, PVA, ma ọ bụ PVAL) na ndị na-ewu ụlọ na ndị na-ebubata ihe

Mmanya Polyvinyl (PVOH, PVA, ma ọ bụ PVAL) n'ihe owuwu egosipụtara

Polyvinyl mmanya (PVOH, PVA, ma ọ bụ PVAL) na-ewu

Mmanya Polyvinyl (PVOH, PVA, ma ọ bụ PVAL) bụ polymer sịntetik na-agbaze mmiri. Ọ nwere usoro nke ọma [CH2CH(OH)] n. A na-eji ya eme akwụkwọ, gluu, na mkpuchi dị iche iche.
Mmanya Polyvinyl bụ ihe na-adịghị egbu egbu, polima na-emebi emebi, yana ngwaahịa ndị nwere PVA dị mma maka iji yana enweghị ike iri ya. Ndị na-arụ ọrụ na gburugburu ebe obibi gosipụtara ya dị ka ihe dị ize ndụ dị ala na ihe ịchọ mma, na nchịkwa nri na ọgwụ ọjọọ akwadoro PVA maka iji ngwugwu nri na ngwa ọgwụ.

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Nkọwa ngwaahịa

Mkpado ngwaahịa

Njirimara anụ ahụ

Ọdịdị	Ọdịiche adịghị agba adịghị-caking-adịghị ọcha	Ọdịiche adịghị agba adịghị-caking-adịghị ọcha
Ọkwa Alcoholysis% (mol/mol)	86.5-88.5	87.4
Viscosity mPa.s	45.0-55.0	50.2
Ọdịnaya na-agbanwe %	≤ 5	2
Ọdịnaya Ash%	≤0.5	0.2
PH	5 ~ 7	5
ngafe 160 mesh%	≥95	99%

Ngwa

A na-eji mmanya PVA Polyvinyl dị ka ihe enyemaka na polymerizations nkwusioru. Ngwa kachasị ukwuu na China bụ iji ya dị ka colloid nchebe na-eme ka polyvinyl acetate dispersions (RDP). Na Japan isi ihe eji eme ya bụ mmepụta nke eriri vinyl.
A na-eji ya eme ihe na Glue, Wall putty/Skim Coat, Tile adhesive/Tile grout ects.

PVA nwere ike igbari ngwa ngwa, ọbụlagodi na mmiri oyi. Mgbe ihe nkiri PVA gbazere, ụdị ọ bụla n'ime ụdị 55 nke microorganisms dị na usoro ọgwụgwọ mmiri na-ekpofu nwere ike imebi ihe fọdụrụ na fim gbazere.

Nkwakọ ngwaahịa na Nchekwa

A na-akwakọba ngwaahịa a n'ime akpa akwụkwọ nwere akwa polyethylene dị n'ime. Netwọk arọ 25KG. Enwere ike ịmegharị ma ọ bụ gbaa akpa ndị ahụ efu. N'ime akpa na-emegheghị, ngwaahịa a nwere ike ịdịru ọtụtụ afọ. Na akpa meghere, iru mmiri nke ngwaahịa a ga-emetụta iru mmiri ikuku.
Chekwaa n'ebe dị jụụ na nke akọrọ, zere ìhè anyanwụ. Ekwesịrị izere nchekwa n'okpuru nrụgide.
Hụ MSDS maka ozi gbasara njikwa, njem, na nchekwa ngwaahịa.