Hydroxypropyl methyl cellulose (HPMC maka mkpụmkpụ) nwere magburu onwe thickening onwunwe na ike ga-eji dị ka ihe magburu onwe mgbochi dispersion gị n'ụlọnga maka ihe. N'oge gara aga, ihe a bụ ezigbo ngwaahịa kemịkalụ dị mkpụmkpụ na China, yana ọnụ ahịa dị elu. N'ihi ihe dị iche iche, ngwa ya na ụlọ ọrụ ihe owuwu nke China nwere oke.
Na-adịbeghị anya, na-aga n'ihu mmepe nke mpụga mgbidi thermal ikpuchi technology, na-aga n'ihu na-aga n'ihu nke cellulose mmepụta technology, na magburu onwe àgwà nke HPMC onwe ya, HPMC e ọtụtụ-eji na-ewu ụlọ ọrụ. N'ime ule oge nhazi, oge nhazi nke ihe na-emetụtakarị oge nhazi nke ciment, na nchịkọta enweghị mmetụta dị nta. Ya mere, mwube oge nke ngwa agha nwere ike iji dochie mmetụta nke HPMC na mwube oge nke n'okpuru mmiri na-abụghị dispersive ihe ngwakọta. Ebe ọ bụ na oge nhazi nke ngwa agha na-emetụta oke ciment mmiri na ciment ájá ruru
N'ihi na mmetụta nke HPMC na mwube oge nke ngwa agha, ọ dị mkpa iji dozie mmiri ciment ratio na ciment ájá ruru nke ngwa agha.Ọ pụrụ ịhụ site nnwale na mgbakwunye na nke HPMC nwere doro anya retarding mmetụta na ngwa agha ngwakọta. na oge nhazi nke ngwa agha na-abawanye na mmụba nke ego HPMC. N'otu ego ahụ nke HPMC, oge nhazi nke ngwa agha a kpụrụ n'okpuru mmiri dị ogologo karịa nke a na-emepụta na ikuku.
The ogologo molekul chains nke HPMC ga-adọta ibe ha, na-eme HPMC molekul intertwine na-etolite a netwọk Ọdịdị, na ọbọp ciment na ịgwakọta mmiri. Dị ka HPMC na-emepụta usoro netwọk dị ka ihe nkiri ma kechie ciment, ọ nwere ike igbochi ngbanwe nke mmiri n'ime ngwa agha ma gbochie ma ọ bụ belata ọnụ ọgụgụ hydration ciment. N'ime ule ọbara ọgbụgba, ihe na-agba ọbara nke ngwa agha yiri nke kọnkịtị, nke ga-eme ka mbelata mkpokọta, mụbaa cement ciment ruru nke elu oyi akwa slurry, na-eme ka elu oyi akwa slurry na-ebelata nke ukwuu na mbido mbụ, ọbụlagodi mgbape. , na ike nke slurry elu adịghị ike. Enwere ike ịhụ site na nnwale ahụ na mgbe ọdịnaya dị n'elu 0.5%, ọ dịghị ihe ọ bụla na-agbapụta ọbara. Nke a bụ n'ihi na mgbe HPMC na-agwakọta n'ime ngwa agha, HPMC nwere film-akpụ na reticular Ọdịdị, nakwa dị ka adsorption nke hydroxyl na ogologo yinye nke macromolecule, nke na-eme ka ciment na ịgwakọta mmiri na ngwa agha ụdị flocculent, n'ịhụ ike Ọdịdị nke. ngwa agha. Mgbe agbakwunyere HPMC na ngwa agha, a ga-emepụta ọtụtụ obere afụ nwere onwe ha. A ga-ekesa afụ ndị a n'otu n'otu na ngwa ngwa ma gbochie ntinye nke mkpokọta. Ọrụ nka nke HPMC nwere mmetụta dị ukwuu na ihe ndị sitere na ciment, a na-ejikarị akwadebe ihe ndị sitere na ciment ọhụrụ dị ka ngwa ngwa akọrọ na ụrọ polymer, ka ha wee nwee ezigbo mmiri na njide plastik.
Nnwale chọrọ mmiri nke ngwa agha nwere mmetụta dị ukwuu n'ọchịchọ mmiri nke ngwa agha mgbe ego HPMC dị ntakịrị.
A na-eji Youngcel HPMC/MHEC dị ka onye enyemaka kemịkalụ maka nrapado tile, plasta ciment, ngwa ngwa ngwakọta akọrọ, mgbidi mgbidi, mkpuchi mkpuchi na ihe ndị ọzọ. Anyị nwekwara ike ịnye gị ọnụahịa kacha mma na kacha mma.
Ngwaahịa anyị na-ewu ewu na Egypt, Russia, South Africa, Middle East, toki, Vietnam, France, Italy, Singapore, Bangladesh, Indonesia, South America na na. Daalụ n'ọdịnihu ma nabata ịkpọtụrụ.
Oge nzipu: Ọktoba 31-2022