Polymer Natural Hydroxypropyl Methylcellulose Maka Plasta dabere na ciment

Hydroxypropyl methylcellulose (HPMC) bụ polymer eke ejirila n'ọtụtụ ebe na ụlọ ọrụ ihe owuwu dị ka ihe mgbakwunye plasta sitere na ciment. Enwere ike iji ya dị ka ihe na-ejigide mmiri, ihe na-agbakọ, na ihe nkedo iji melite arụmọrụ nke plasta dabeere na ciment.

HPMC bụ polymer synthetic nke nwere ike ịsọpụrụ mmiri nke sitere na cellulose. A na-enweta ya site na cellulose eke site na usoro mgbanwe kemịkalụ nke gụnyere mgbakwunye nke hydroxypropyl na methyl. Mgbanwe a na-ebute polymer nwere mma mmiri solubility, nkwụsi ike nke okpomọkụ, na nguzogide kemịkal.

Iji HPMC n'ụdị plasta nke simenti na-enye ọtụtụ uru dị ka:

1. Nrụ ọrụ emelitere: HPMC na-arụ ọrụ dị ka rheology modifier na-eme ka arụ ọrụ na ngwa ngwa nke plasta dịkwuo mma. Ọ na-eme ka adhesion, njikọta, na mgbasa nke plasta dịkwuo mma, na-ekwe ka ọ dị mfe itinye ya na mkpụrụ.
2. Ejikwa mmiri emelitere: HPMC nwere ike ịmịnye ma jide nnukwu mmiri, nke na-enyere aka igbochi plasta ka ọ ghara ịta ngwa ngwa. Ngwongwo a na-emekwa ka plasta na-edobe nkwụsi ike ya na ịrụ ọrụ ruo ogologo oge, ọbụlagodi na ọnọdụ ọkụ na nkụ.
3. Ịba ụba na njikọta na nchikota: HPMC na-emepụta ihe nkiri n'akụkụ akụkụ ciment, nke na-eme ka njikọ ha dịkwuo mma na nrapanye na mkpụrụ. Ngwongwo a na-eme ka plasta na-adịgide adịgide ma ghara ịgbawa ma ọ bụ kewapụ ya na mkpụrụ.
4. Mbelata mgbawa: HPMC na-eme ka ike ntanye na mgbanwe nke plasta dịkwuo mma, na-ebelata ohere nke mgbawa n'ihi mbelata ma ọ bụ mgbasawanye.
5. Ọdịnaya emelitere: HPMC na-enye plasta ihe nguzogide mmiri dị mma yana nguzogide kemịkalụ, na-eme ka ọ dịkwuo ogologo ma na-eguzogide ihu igwe na ịka nká.

Na mgbakwunye na uru ndị a, HPMC bụkwa ihe mgbakwunye na-adigide na gburugburu ebe obibi nke nwere ike inye aka belata mmetụta gburugburu ebe obibi nke plasta dabeere na ciment. Ọ naghị egbu egbu, na-emebi emebi, ọ naghị ahapụkwa ihe ndị na-emerụ ahụ na gburugburu ebe obibi.

Iji HPMC n'ime plasters dabeere na ciment, a na-agbakwunye ya na ngwakọta ciment na ájá akọrọ tupu agbakwụnye mmiri. Usoro ọgwụgwọ HPMC akwadoro na-adabere na ngwa a kapịrị ọnụ yana njirimara achọrọ nke plasta. N'ozuzu, a na-atụ aro usoro onunu ogwu nke 0.2% ruo 0.5% nke HPMC dabere na mkpokọta ciment na ájá.

HPMC bụ ihe mgbakwunye na-agbanwe agbanwe ma dị irè nke nwere ike imeziwanye arụmọrụ nke plasta dabeere na ciment. Ebe sitere n'okike ya, nkwado ya na ịdị mma gburugburu ebe obibi na-eme ka ọ bụrụ nhọrọ mara mma maka ndị ọrụ ngo, ndị na-ese ụkpụrụ ụlọ, na ndị nwe ụlọ bụ ndị na-ebute ụkpụrụ ụlọ na-adigide ụzọ.