(1) Nyochaa ngwa ngwa hydroxypropyl methylcellulose
Ngwa ngwa hydroxypropyl methylcellulose (HPMC) bụ ihe na-abụghị ionic cellulose ether nwetara site kemịkalụ mgbanwe nke eke cellulose na nwere ezi solubility na viscosity àgwà. Ọdịdị molekụla ya nwere hydroxyl, methoxy na hydroxypropoxy otu. Ndị otu a na-arụ ọrụ na-enye ya ihe pụrụ iche nke anụ ahụ na kemịkal, na-eme ka ọ dị mkpa na ngwa dị iche iche.
(2) Ọrụ nke HPMC na nrapado ihe owuwu
N'ebe a na-ewu ihe owuwu, HPMC bụ ihe mgbakwunye dị mkpa ma na-ejikarị ya eme ihe n'ụdị adhesives dị iche iche, dị ka tile adhesives, wall putties, dry mortar, etc. Isi ọrụ ya na ihe ndị na-ewu ụlọ gụnyere:
1. Mmetụta dị arọ
HPMC nwere ike ịbawanye viscosity na nkwụsi ike nke nrapado ihe owuwu. Mmetụta ya na-esikwu ike na-abịa site n'ihe onwunwe ọzịza ya na mmiri na nhazi netwọk njikọ intermolecular hydrogen kpụrụ. Viscosity kwesịrị ekwesị nwere ike imeziwanye arụmọrụ nke ihe n'oge a na-arụ ọrụ ma gbochie nrapado ka ọ ghara ịda mbà mgbe etinyere ya n'elu elu kwụ ọtọ, si otú ahụ na-eme ka ihe owuwu dị mma.
2. Mmetụta njide mmiri
HPMC nwere ezigbo njide mmiri, nke nwere ike ibelata mmiri na-efu n'oge a na-ewu ụlọ. Njide mmiri bụ ihe dị mkpa e ji mara ihe nrapado ụlọ. Karịsịa na ciment dabeere na gypsum ihe, mmetụta njigide mmiri nke HPMC nwere ike ịgbatị oge oghere nke adhesives, na-enye ogologo oge mgbanwe na oge owuwu, na-egbochi nkwụsị mbụ ma belata ike.
3. Meziwanye ikike ịrụ ọrụ
HPMC nwere ike imeziwanye arụmọrụ arụ ọrụ nke nrapado ihe owuwu, gụnyere mmiri mmiri, ihe owuwu na ime ụlọ. Mmetụta mmanụ mmanye ya na-eme ka nrapado dị mfe itinye na ịchacha n'oge a na-ewu ụlọ, na-eme ka arụ ọrụ na-arụ ọrụ na-arụ ọrụ na ịdị larịị nke ihe owuwu ahụ, ma na-eme ka ọ bụrụ ihe nrụpụta ikpeazụ.
4. Meziwanye ike njikọta
HPMC nwere ike welie nrapado n'etiti nrapado na mkpụrụ ma melite ike bonding nke nrapado site na-akpụ a edo na ezi bonding oyi akwa. Nke a dị oké mkpa maka nkwụsi ike nke ihe owuwu ụlọ dị ka mgbidi na ala, ma nwee ike igbochi taịl nile nke ọma, na-eche ihu taịl nile, wdg ịdapụ.
5. Mgbochi-slip arụmọrụ
N'ime ngwa dị ka nrapado taịlị, HPMC nwere ike melite ikike mgbochi nke ihe ahụ. Nke a na-enyere aka idobe taịl nile n'elu ebe a na-ewu ụlọ kwụ ọtọ, belata oge mgbanwe na ibu ọrụ, wee si otú a kwalite ịdị mma ụlọ.
(3) Ngwa dị iche iche nke HPMC na nrapado ụlọ dị iche iche
1. Tile nrapado
Na nrapado tile, HPMC ọ bụghị naanị na-ekere òkè na ịkwanye na idobe mmiri, kamakwa ọ na-eme ka arụ ọrụ mgbochi nke tile na-eme ka ọ dịkwuo mma, na-eme ka nkwụsi ike nke taịlị n'oge a na-ewu ya. Ngwongwo rheological ya pụrụ iche na-eme ka nrapado nọgide na-enwe viscosity kwesịrị ekwesị n'okpuru ọnọdụ ihe owuwu dị iche iche, na-eme ka ọ dị mfe ịhazi ma wuo ya.
2. Wall putty
HPMC na-arụkarị ọrụ n'ijigide mmiri na ịgbatị na mgbidi mgbidi, na-eme ka putty na-arụ ọrụ nke ọma ma na-enwe elu dị larịị mgbe akpọnwụchara. Njide mmiri ya nwere ike ibelata mgbawa na mbelata nke oyi akwa putty n'oge a na-ewu ya, ma melite ogo mkpuchi ikpeazụ.
3. Ngwa agha akọrọ
N'ime ngwa agha akọrọ, isi ọrụ HPMC bụ ijigide mmiri ma gbochie mmiri mmiri n'oge, si otú a na-eme ka arụ ọrụ na nrapado nke ngwa agha dịkwuo mma. Ọ nwekwara ike ịgbanwe agbanwe nke ngwa agha iji mee ka ọ dabara maka ọnọdụ ihe owuwu dị iche iche, dị ka ngwa agha masonry, plastering mortar, wdg.
4. Ihe mkpuchi ụlọ
A na-ejikarị HPMC eme ihe n'ịrụ ụlọ na-eme ka ọ dịkwuo mma na ịrụ ọrụ nke colloid, nke mere na ọ nwere ike jupụta nkwonkwo n'oge ngwa ma nọgide na-enwe ike na nrapanye dị mma. Njide mmiri ya nwekwara ike igbochi ihe mkpuchi ahụ ka ọ ghara ịlafu mmiri ngwa ngwa ma melite ogo ihe owuwu ahụ.
(4) Uru nke HPMC n'ịrụ ụlọ adhesives
Nchedo gburugburu ebe obibi: HPMC sitere na cellulose eke, nwere akụrụngwa kemịkalụ kwụsiri ike, anaghị ahapụ ihe ndị na-emerụ ahụ mgbe a na-eji ya eme ihe, yana enyi na gburugburu ebe obibi na ahụ mmadụ.
Nkwụsi ike: HPMC nwere ezigbo nkwụsi ike nke kemịkalụ yana adịghị emetụta ya ngwa ngwa site na gburugburu ebe obibi dị ka okpomọkụ na pH, ma nwee ike ịnọgide na-arụ ọrụ ya ruo ogologo oge.
Ndakọrịta: HPMC dakọtara na ụdị ihe owuwu dị iche iche ma nwee ike jikọta ya nke ọma na ihe ndị dị ka ciment, gypsum, na ngwa agha iji rụsie ọrụ ike na njigide mmiri.
(5) Usoro mmepe n'ọdịnihu
Site na mmepe nke teknụzụ ihe owuwu, atụmanya ngwa nke HPMC n'ịrụ ụlọ adhesives sara mbara. Ntụziaka mmepe nwere ike ime n'ọdịnihu gụnyere:
Nkwalite ọrụ: Melite mgbanwe nke HPMC site na mgbanwe kemịkalụ ma ọ bụ iji mgbakwunye ndị ọzọ na-egbo mkpa nke ngwa ihe owuwu dị iche iche.
Ngwaahịa maka gburugburu ebe obibi: Zụlite ngwaahịa HPMC dị mma na gburugburu ebe obibi na-emebi emebi iji belata mmetụta na gburugburu ebe obibi.
Ngwa smart: Nyochaa ngwa HPMC n'ime ihe eji ewu ụlọ, dị ka nrapado na-agwọ onwe ya, ihe na-anabata okpomọkụ, wdg, iji kwalite ọgụgụ isi nke ihe ụlọ.
Ngwa ngwa hydroxypropyl methylcellulose, dị ka ihe mgbakwunye dị mkpa maka iwulite adhesives, na-arụ ọrụ dị mkpa n'ịkwalite viscosity, njide mmiri, na ihe nrụpụta nke nrapado. Ngwa ya na nrapado tile, putty mgbidi, ngwa agha akọrọ na mpaghara ndị ọzọ emeela ka mma ụlọ na arụmọrụ dị mma nke ukwuu. N'ọdịniihu, site na mmepụta teknụzụ na-aga n'ihu na mmụba nke mmata gburugburu ebe obibi, itinye HPMC n'iwu ihe nrapado ga-ebute ohere mmepe sara mbara.
Oge nzipu: Jun-14-2024