Hydroxypropylmethylcellulose (HPMC) bụ polymer sịntetik nke a na-ejikarị eme ihe na ụlọ ọrụ ihe owuwu, karịsịa na mmepụta nke ngwa agha na ihe. HPMC na-arụ ọrụ dị ka onye na-ebu ibu na onye na-ejigide mmiri, na-eme ka ihe eji arụ ọrụ na arụ ọrụ nke ihe ndị sitere na ciment. HPMC bụ ihe dị iche iche nwere ike iji na ngwaahịa cimenti dị ka taịlị, plasta na ala. N'isiokwu a, anyị na-enyocha uru nke iji HPMC na ngwa ngwa na ngwa ngwa.
Melite ikike ịrụ ọrụ
Mgbakwunye nke HPMC na ngwa agha na kọmpat na-eme ka plasticity, njikọ na njide mmiri nke ngwakọta cimentious. HPMC na-aza na mmiri ma na-emepụta ihe dị ka gel, nke na-ebelata mmiri na-efunahụ na ngwakọta, na-ekwe ka ciment nọgide na-arụ ọrụ ruo ogologo oge. Ịrụ ọrụ nke ọma nke ngwakọta na-eme ka ọ dịrị ndị ọrụ mfe itinye ngwakọta ciment maka ihu dị nro, nke dị n'otu.
welie adhesion
Mgbakwunye nke HPMC mekwara ka mmachi nke ngwakọta ciment dị na mkpụrụ. HPMC na-arụ ọrụ dị ka nrapado n'etiti mkpụrụ na ngwakọta cimentious, na-eme ka njikọ siri ike ma dị ogologo oge. Nchikota ka mma nke ngwakọta ciment na-ebelatakwa ohere nke mgbawa ma ọ bụ spalling nke ngwa agha ma ọ bụ oyi akwa.
belata shrinkage
Mbelata bụ ihe na-eme mgbe mmiri na-esi na ngwakọta ciment pụta na-eme ka ọ daa. Nke a nwere ike iduga mgbawa na oghere dị na oyi akwa ciment, na-ebelata ihe nhazi nke ụlọ ahụ. Ịtinye HPMC na ngwakọta ciment na-ebelata mbelata nke ngwakọta site na ijigide mmiri na ibelata ọnụego nke evaporation. Nke a na-eme ka ngwakọta ciment na-anọgide na-adịgide adịgide ma ghara ịdaba, na-eme ka usoro ụlọ dị ike ma dịgidere.
Nkwụsi ike na-abawanye
Iji HPMC na ngwakọta cimentious nwekwara ike melite ịdịte aka nke ngwaahịa emechara. HPMC na-etolite netwọk nke abụọ n'ime matriks ciment, na-eme ka ike na ịdịte aka nke ihe dị elu. Ihe dị ka gel nke HPMC mebere na-arụkwa ọrụ dị ka oyi akwa nchekwa, na-egbochi ntinye mmiri na ihe ndị ọzọ na-emerụ ahụ nke nwere ike imebi ihe ndị dị na kọnkịtị.
Melite nguzogide mmiri
Mgbochi mmiri bụ isi ihe na-eme ka ụlọ ndị dabeere na ciment, karịsịa ebe a na-ekpuchi ha na mmiri ma ọ bụ mmiri. HPMC na-akwalite nguzogide mmiri nke ngwakọta cimentious site n'ịme ihe mgbochi mmiri nke na-egbochi mmiri ịbanye n'ime matriks cimentious. Nke a na-ebelata ohere nke mmebi mmiri dị ka mgbawa, spalling na corrosion, na-eme ka usoro dị ogologo na-adịte aka.
mụbaa mgbanwe
Ojiji nke HPMC na-abawanye mgbanwe nke ngwakọta ciment. HPMC na-ebelata ike nke ogige ahụ, na-ekwe ka ọ gbadaa ma gbasaa na-enweghị mgbawa ma ọ bụ mgbawa. Nke a na-eme ka ihe owuwu ahụ na-eguzogide ọgwụ na ịma jijiji, na-ebelata ohere nke mmebi sitere na ndị agha dịpụrụ adịpụ.
Melite mmetụta gburugburu ebe obibi
Iji HPMC na ngwakọta ciment na-enwekwa mmetụta dị mma na gburugburu ebe obibi. HPMC bụ ihe na-adịghị egbu egbu, ihe dị ndụ na gburugburu ebe obibi nke na-adịghị etinye ihe egwu ọ bụla na ahụike ma ọ bụ gburugburu ebe obibi. Iji HPMC na ngwa simenti nwere ike ibelata oke mmiri achọrọ maka ngwakọta, ibelata ojiji mmiri na ibelata mmetụta gburugburu ebe obibi.
na ngwụcha
Mgbakwunye nke hydroxypropylmethylcellulose (HPMC) na ngwa agha na ngwakọta ihe na-enye ọtụtụ uru site na imeziwanye akụrụngwa na arụ ọrụ nke ngwakọta. HPMC na-eme ka ngwakọta ciment rụọ ọrụ site n'ịkwalite plasticity, nchikota na njide mmiri, na-ebute elu dị nro na nke edo. HPMC na-emekwa ka adhesion dịkwuo mma, na-ebelata nkwụsịtụ, na-eme ka ike dị ogologo, nkwụsị mmiri na mgbanwe, na-ebelata mmetụta gburugburu ebe obibi nke usoro ahụ. Ya mere, iji HPMC eme ihe na ụlọ ọrụ ihe owuwu bụ nzọụkwụ dị mkpa maka ịrụ ọrụ nke ọma, nke na-adịgide adịgide na nke na-adịte aka na ciment nke nwere ike iguzogide ọnọdụ dị iche iche.
Oge nzipu: Ọgọst-25-2023