I-HPMC kwi-plaster - isongezo esigqibeleleyo

IHydroxypropyl methylcellulose (HPMC) yipolymer enemisebenzi emininzi esetyenziswa kakhulu kumashishini ahlukeneyo kuquka ukwakhiwa. Kwizicelo ze-gypsum, i-HPMC isebenza njengesongezo esixabisekileyo kunye noluhlu lweenzuzo ezinceda ukuphucula ukusebenza ngokubanzi kunye nomgangatho wokwakheka kwegypsum.

Intshayelelo ye-hydroxypropyl methylcellulose:

I-Hydroxypropyl methylcellulose yi-semi-synthetic polymer ephuma kwi-cellulose, i-polymer yendalo efumaneka kwizityalo. I-HPMC yenziwe ngokunyanga i-cellulose nge-propylene oxide kunye ne-methyl chloride, okukhokelela kwiikhompawundi ezineempawu eziphuculweyo xa kuthelekiswa neselulosi yomzali. Iqondo lokutshintshwa (DS) lwe-hydroxypropyl kunye namaqela e-methoxy kwi-cellulose backbone imisela iimpawu ezithile ze-HPMC.

Iimpawu zeHPMC:

Ugcino lwamanzi:
I-HPMC ineempawu ezigqwesileyo zokugcina amanzi kwaye inokwenza ifilim ebhityileyo kumphezulu wegypsum ukucothisa ukuphuphuma kwamanzi. Oku kubalulekile ukuphumeza iimeko zokunyanga ezona ziphezulu kunye nokuthintela ukomiswa kwangaphambi kwexesha kwe-stucco.

Ukuphuculwa kobuchule:

Ukongezwa kwe-HPMC kwandisa ukusebenza kodaka, okwenza kube lula ukuxuba, ukusebenzisa kunye nokusabalalisa. Ukuhambelana okuphuculweyo kunceda ukubonelela ngokubambelela okungcono kunye nokugubungela kwiindawo ezahlukeneyo.

Ixesha lokumisela elilawulwayo:

I-HPMC ivumela ulawulo olukhulu kwixesha lokubeka udaka. Ngokuhlenga-hlengisa umxholo we-HPMC, abavelisi banokuhlengahlengisa amaxesha okuseta ukuhlangabezana neemfuno ezithile zeprojekthi, beqinisekisa usetyenziso olulolona lufanelekileyo kunye nokugqiba.

Yandisa iiyure zokuvula:

Ixesha lokuvula lixesha apho udaka luhlala lusebenza phambi kokuba lubekwe. I-HPMC iye yandisa iiyure zayo zokuvula ukuze ibonelele amagcisa nabasebenzi ixesha elisikelweyo lokufaka izicelo kunye nokugqitywa kwemisebenzi.

Yandisa ukunamathela:

Iimpawu zokwenza ifilimu ye-HPMC inceda ukuphucula ukudibanisa phakathi kwe-plaster kunye ne-substrate. Oku kubaluleke ngakumbi ukuqinisekisa ubude obude kunye nokuqina kweendawo ezityatyiweyo.

Ukuchasana nokuqhekeka:

HPMC inceda ekunciphiseni amathuba iintanda kwi udaka ngokwandisa bhetyebhetye kunye namandla. Oku kubalulekile ukugcina imfezeko yesakhiwo somphezulu otyatyekiweyo kwixesha elide.

I-rheology ephuculweyo:

I-Rheology ibhekiselele ekuhambeni kunye nokuziphatha kokuguqulwa kwezinto. I-HPMC inokuguqula iipropati ze-rheological zegypsum, zinike ukuhambelana okufunekayo ukuze kube lula ukusetyenziswa kunye nokulinganisa.

Ukusetyenziswa kweHPMC kwigypsum:

Udaka lweGypsum:

Kwimiqulu ye-gypsum, i-HPMC isoloko isetyenziselwa ukuphucula ukugcinwa kwamanzi, ukusebenza kunye nokubambelela. Ikwanceda ukulawula ixesha lokumisela kunye nokuphucula ukusebenza ngokubanzi kwe-stucco esekwe kwi-gypsum.

Ukutyatyekwa okusekwe kwisamente:

I-HPMC isetyenziswa ngokubanzi kwi-plasters esekwe kwisamente apho iyisihlomelo esiphambili sokufikelela kwi-rheology efunekayo, ixesha elivulekileyo kunye nokubambelela. Amaxesha amiselweyo alawulwayo aluncedo ngokukhethekileyo kwiiprojekthi ezinkulu zokwakha.

Intlama yekalika:

Ukwenziwa kodaka lwekalika kuxhamla ekongezweni kweHPMC ukomeleza ugcino lwamanzi kunye nokusebenza. Ukuhambelana kwepolymer kunye nezinto ezisekelwe kwi-lime kwenza kube yinto efanelekileyo yokuzikhethela kwiiprojekthi zelifa lemveli kunye nokubuyisela.

Ukugquma kwaNgaphandle kunye neeNkqubo zokuQeda (EIFS):

I-HPMC yinxalenye ebalulekileyo yezicelo ze-EIFS, inceda ekuphuculeni ukubambelela, ukuguquguquka kunye nokumelana nokuqhekeka. Iimpawu zayo zokugcina amanzi zibaluleke kakhulu kwiinkqubo ze-stucco zangaphandle.

ukuququmbela:

I-Hydroxypropyl methylcellulose iyongezwa ngokugqibeleleyo kwi-gypsum formulations ngenxa yegalelo layo elinobuninzi bokugcina amanzi, ukusebenza, ukubeka ixesha lokulawula, ukunamathela kunye nokuchasana nokuqhekeka. Nokuba isetyenziselwa udaka, isamente, ikalika okanye inkqubo yokugquma eludongeni yangaphandle, iHPMC idlala indima ephambili ekuphuculeni ukusebenza ngokubanzi kunye nomgangatho wodaka. Njengoko izenzo zolwakhiwo ziqhubeka nokuvela, ukuguquguquka kwezinto ezininzi kunye nokuthembeka kwe-HPMC kuyenze yaba yinxalenye yokwenziwa kodaka lwale mihla, iqinisekisa ubomi obude kunye nempumelelo kwiiprojekthi ezahlukeneyo zokwakha.