HPMC FOR GYPSUM

I-HPMC, okanye i-Hydroxypropyl Methylcellulose, yimathiriyeli eguquguqukayo esetyenziswa kakhulu kushishino lokwakha. Enye yezicelo zayo eziqhelekileyo kukuveliswa kweemveliso zegypsum. I-Gypsum yiminerali eyenzeka ngokwemvelo esetyenziswa ngokuqhelekileyo kwizinto zokwakha ezifana ne-plaster kunye ne-drywall. I-HPMC isoloko yongezwa kwiimveliso zegypsum ukuphucula ukusebenza kwazo, ngokukodwa malunga nokusebenza, ukunamathela, kunye nokugcinwa kwamanzi.

Kukho iintlobo ezininzi ezahlukeneyo zeemveliso zegypsum ezinokuxhamla ekongezweni kwe-HPMC. Ezi ziquka:

I-Plaster: I-Plaster yinto eqhelekileyo yokwakha eyenziwe nge-gypsum powder kunye namanzi. I-HPMC inokongezwa kwi-plaster ukuphucula ukusebenza kwayo kunye nokunamathela. Kwakhona kunokunceda ukunciphisa ukucutheka kunye nokuqhekeka ngexesha lokumisa.

Ikhompawundi edityanisiweyo: Ikhompawundi edityanisiweyo luhlobo lwemveliso yegypsum esetyenziselwa ukuzalisa izikhewu phakathi kwamaphepha e-drywall. I-HPMC inokongezwa kwikhompawundi edibeneyo ukuphucula ukusebenza kwayo kunye nokubambelela. Inokukunceda nasekunciphiseni ukushwabana nokuqhekeka.

Ikhompawundi yokuzilinganisa: Iikhompawundi zokuzilinganisa zisetyenziselwa ukulinganisa imigangatho engalinganiyo okanye ukwenza umphezulu ogudileyo wezinye izinto zomgangatho. I-HPMC inokongezwa kwiikhompawundi zokuzilinganisa ukuphucula ukusebenza kwazo kunye nokugcinwa kwamanzi. Kwakhona kunokunceda ukunciphisa ukucutheka kunye nokuqhekeka ngexesha lokumisa.

Ibhodi yeGypsum: Ibhodi yegypsum, ekwaziwa ngokuba yi-drywall, sisixhobo sokwakha esixhaphakileyo esenziwe ngodaka lwegypsum phakathi kwamaphepha amabini. I-HPMC inokongezwa kwi-gypsum plaster ukuphucula ukusebenza kwayo kunye nokunamathela.

Iimpawu ezithile ze-HPMC zinokuhluka ngokuxhomekeke kwimveliso kunye nomvelisi, kodwa ngokubanzi, inezi mpawu zilandelayo:

Ukugcinwa kwamanzi aphezulu: I-HPMC yimathiriyeli ye-hydrophilic, ethetha ukuba inobudlelwane obuqinileyo bamanzi. Le propati inceda ukuphucula ukusebenza kweemveliso ze-gypsum, njengoko inceda ukugcina umxube omanzi kwaye kulula ukusasazeka.

Isakhono esihle sokwenza ifilimu: I-HPMC inokwenza ifilimu ebhityileyo kumphezulu wemveliso yegypsum njengoko isoma, enceda ekuphuculeni amandla ayo oomatshini kunye nokuqina.

Ukubambelela okuphuculweyo: I-HPMC inokuphucula ukunamathela kwemveliso yegypsum kwi-substrate engaphantsi, inceda ukudala indawo eqinile, ehlala ixesha elide.

Ukunciphisa ukuncipha kunye nokuqhekeka: I-HPMC inokunceda ukunciphisa inani le-shrinkage kunye nokuqhekeka okwenzeka ngexesha lokumisa, oku kunokukhokelela kwindawo engaphezulu kwaye egudileyo.

Non-ityhefu kunye nobungane kokusingqongileyo: HPMC kuyinto non-ityhefu, imathiriyeli enobuhlobo kokusingqongileyo ekhuselekileyo ukusetyenziswa kwizicelo zokwakha.

Xa usebenzisa i-HPMC kwiimveliso zegypsum, kubalulekile ukulandela imiyalelo yomenzi ngononophelo. Umxube kufuneka ulungiswe ngokuhambelana nomlinganiselo ocetyiswayo wamanzi ukuya kumgubo, kwaye kufuneka uxutywe ngokucokisekileyo ukuqinisekisa ukuba i-HPMC isasazwa ngokulinganayo kuwo wonke umxube.

Emva kokuba imveliso ye-gypsum isetyenziswe kumphezulu, kufuneka ihlanjululwe kwaye ihlanjululwe ngokusebenzisa i-trowel okanye esinye isixhobo. Kubalulekile ukusebenza ngokukhawuleza, njengoko imveliso iya kuqala ukuseta ngaphakathi kwexesha elifutshane.

Emva kokuba imveliso isetyenzisiwe, kufuneka ishiywe ukuze yome ixesha elicetyiswayo ngaphambi kokuba nawuphi na umsebenzi owongezelelweyo wenziwe phezu komhlaba. Oku kuya kunceda ukuqinisekisa ukuba umphezulu uphiliswe ngokupheleleyo kwaye ulungele ukusetyenziswa.

Ngokubanzi, i-HPMC yinto ebalulekileyo kwimveliso yeemveliso zegypsum. Iimpawu zayo ezikhethekileyo zinceda ekuphuculeni ukusebenza kwezi zinto, okwenza kube lula ukusebenza kunye nokuqina ngakumbi ngexesha. Ngokusebenzisa iimveliso zegypsum eziqulethe i-HPMC, iingcali zokwakha zingenza umgangatho ogudileyo, umgangatho olungele uluhlu olubanzi lwezicelo.