Hydroxypropyl methylcellulose (HPMC) bụ polymer multifunctional nke a na-ejikarị na ụlọ ọrụ dị iche iche gụnyere ihe owuwu. N'ime ngwa gypsum, HPMC na-eje ozi dị ka ihe mgbakwunye bara uru nwere ọtụtụ uru na-enyere aka melite arụmọrụ na ogo nke usoro gypsum.
Okwu mmalite nke hydroxypropyl methylcellulose:
Hydroxypropyl methylcellulose bụ polymer synthetic ọkara nke sitere na cellulose, polymer eke dị na osisi. A na-emepụta HPMC site n'ịgwọ cellulose na propylene oxide na methyl chloride, na-eme ka ogige ndị nwere ihe ndị na-emewanyewanyewanye ma e jiri ya tụnyere nne na nna cellulose. Ogo nke nnọchi (DS) nke hydroxypropyl na methoxy dị n'ọkpụkpụ azụ cellulose na-ekpebi njirimara akọwapụtara nke HPMC.
Njirimara nke HPMC:
Ndokwa mmiri:
HPMC nwere ezigbo njide mmiri ma nwee ike ịmepụta ihe nkiri dị mkpa n'elu gypsum iji mee ka ikuku mmiri kwụsịlata. Nke a dị mkpa iji nweta ọnọdụ ọgwụgwọ kachasị mma ma gbochie ihicha stucco n'oge.
Nrụ ọrụ emelitere:
Mgbakwunye nke HPMC na-eme ka ọrụ nke plasta rụọ ọrụ, na-eme ka ọ dị mfe ịgwakọta, tinye na ịgbasa. Nkwekọrịta dị mma na-enyere aka ịnye mmachi na mkpuchi n'elu dị iche iche.
Oge ntọala a na-achịkwa:
HPMC na-enye ohere ka ukwuu ịchịkwa oge nhazi nke plasta. Site n'ịgbanwe ọdịnaya HPMC, ndị na-emepụta nwere ike ịhazi oge iji gboo ihe achọrọ, na-ahụ na ngwa kacha mma na imecha ya.
Mụbaa oge mmeghe:
Oge imeghe bụ oge nke plasta na-anọgide na-arụ ọrụ tupu ya edowe ya. HPMC agbatịla oge mmeghe ya iji nye ndị omenkà na ndị ọrụ oge ezumike karịa maka ngwa na ịrụcha ọrụ.
Kwalite adhesion:
Njirimara mmepụta ihe nkiri nke HPMC na-enyere aka melite njikọ dị n'etiti plasta na mkpụrụ. Nke a dị mkpa karịsịa iji hụ na ogologo ndụ na ịdịte aka nke elu plastered.
Nguzogide mgbawa:
HPMC na-enyere aka ibelata ohere nke mgbawa na plasta site n'ịbawanye mgbanwe na ike ya. Nke a dị oké mkpa iji nọgide na-eguzosi ike n'ezi ihe nhazi nke elu plastered n'ime ogologo oge.
Rheology emelitere:
Rheology na-ezo aka na nrụrụ na nrụrụ omume nke ihe. HPMC nwere ike gbanwee rheological Njirimara nke gypsum, na-enye ya chọrọ agbanwe agbanwe maka mfe ngwa na larịị.
Ngwa nke HPMC na gypsum:
Gypsum plasta:
N'ime usoro gypsum, a na-ejikarị HPMC eme ihe iji melite njide mmiri, ịrụ ọrụ na nrapado. Ọ na-enyekwa aka ịchịkwa ịtọ oge ma na-emeziwanye arụmọrụ nke stucco dabeere na gypsum.
plasta sitere na ciment:
A na-eji HPMC eme ihe na plasta nke sitere na ciment ebe ọ bụ ihe mgbakwunye dị mkpa iji nweta rheology achọrọ, oge na-emeghe na adhesion. Oge ntọala a na-achịkwa na-aba uru karịsịa maka nnukwu ọrụ owuwu.
Tapawa lime:
Usoro plasta lime na-erite uru site na mgbakwunye nke HPMC iji kwalite njide mmiri na ịrụ ọrụ. Ndakọrịta polymer na ihe ndị dabere na lime na-eme ka ọ bụrụ nhọrọ dabara adaba maka ọrụ ihe nketa na mweghachi.
Sistemụ Mkpuchi Mpụga na Mmecha (EIFS):
HPMC bụ akụkụ dị mkpa nke ngwa EIFS, na-enyere aka melite adhesion, mgbanwe na mgbape mgbape. Ngwongwo ya na-ejigide mmiri bara uru karịsịa na usoro stucco dị n'èzí.
na ngwụcha:
Hydroxypropyl methylcellulose bụ ihe mgbakwunye zuru oke na usoro gypsum n'ihi ntinye aka ya dị iche iche na njide mmiri, ịrụ ọrụ, nhazi oge njikwa, adhesion na mgbawa nkwụsị. Ma ejiri ya na plasta, ciment, lime ma ọ bụ n'èzí mkpuchi mgbidi, HPMC na-arụ ọrụ dị mkpa n'ịkwalite arụmọrụ na ịdịmma nke plasta. Ka omume ihe owuwu na-aga n'ihu na-aga n'ihu, ịdị mma na ntụkwasị obi HPMC emeela ka ọ bụrụ akụkụ dị mkpa nke nhazi plasta ọgbara ọhụrụ, na-eme ka ogologo ndụ na ihe ịga nke ọma n'ọrụ ihe owuwu dị iche iche.
Oge nzipu: Nov-28-2023