I-HPMC, ekwabizwa ngokuba yi-hydroxypropyl methylcellulose, sisongezo esisetyenziswa ngokuqhelekileyo kumashishini ahlukeneyo. Kushishino lokwakha, i-HPMC isetyenziswa kakhulu kwizinto ezisekwe kwisamente ezifana nomgubo weputty, igypsum, kunye nodaka lwesamente. I-HPMC idlala indima ebalulekileyo ekuphuculeni ukusebenza kwe-putty powders ngokunika ukusebenza kakuhle, amandla adibeneyo kunye neempawu zokugcina amanzi. Nangona kunjalo, xa i-HPMC isetyenziselwa i-putty powder, into ebizwa ngokuba yi-"foaming" iyenzeka. Kweli nqaku, siphonononga oonobangela bamadyungudyungu kwaye sixoxe ngeendlela zokuzikhusela.
Yintoni i-blistering kwaye kutheni isenzeka?
I-blistering yinto eyenziwa ngamaqamza omoya okanye amadyungudyungu kumphezulu weputty powder emva kokwakhiwa. Oku kunokwenzeka ngokukhawuleza emva kokufakwa kwesicelo okanye emva kwexesha elithile, kuxhomekeke kunobangela osisiseko. I-Blistering inokubangelwa inani lezinto ezibandakanya ukulungiswa kwe-substrate embi, ukusetyenziswa phantsi kweemeko ezimbi zokusingqongileyo okanye ukusetyenziswa kwezinto ezingahambelaniyo. Izizathu zokukhupha ugwebu lwe-HPMC kunye ne-putty powder zezi zilandelayo:
1. Ukungahambelani phakathi kwe-HPMC kunye nezinye izongezo: I-HPMC isoloko isetyenziswa kunye nezinye izongezo ezifana ne-superplasticizers, i-retarders, kunye ne-air-entraining agents. Nangona kunjalo, ukuba ezi zongezo azihambelani, kunokuvela ugwebu. Oku kwenzeka ngenxa yokuba izongezelelo ziphazamisana nokukwazi ukwenza umsebenzi wazo ojoliswe kuwo, okukhokelela kumxube ongazinzanga kunye nokubambelela kakubi kwi-substrate.
2. Ukuxuba okungonelanga: Xa i-HPMC ixutywe ne-putty powder, ukuxuba okufanelekileyo kubaluleke kakhulu. Ukuxuba okungonelanga kunokubangela ukuba i-HPMC idibane kwaye yenze iziqithi kumxube. Ezi ziqithi zenza iindawo ezibuthathaka kumphezulu weputty powder, ezinokubangela amadyunguza.
3. Ukugcinwa kwamanzi: I-HPMC idume ngokugcina amanzi, okulungileyo kwi-putty powder. Kodwa ukuba i-putty powder ifumana ukufuma kakhulu, iya kubangela ukubola. Oku ngokuqhelekileyo kwenzeka xa i-putty powder isetyenziswe kwiimeko zokufuma okuphezulu okanye kwiindawo ezingakhange zinyangeke ngokufanelekileyo.
4. Ubuchule bokusebenzisa kakubi: Ubuchule bokusebenzisa kakubi bunokubangela amadyungudyungu. Umzekelo, ukuba i-putty isetyenziswe kakhulu, inokubamba iipokotho zomoya ngaphantsi komhlaba. La maqamza omoya anokuthi emva koko ande aze abangele amagwebu. Ngokufanayo, ukuba i-putty isetyenziswe ngokukhawuleza okanye ngamandla amaninzi, iya kwenza ibhondi ebuthakathaka kunye ne-substrate, enokubangela ukuba i-blistering.
Ukuthintela Njani Ukudumba
Ukuthintela ugwebu xa usebenzisa i-HPMC kunye ne-putty powders kufuna ingqalelo ekhethekileyo kwizinto, ubuchule kunye neemeko zokusingqongileyo ezibandakanyekayo. Nanga amanye amacebiso okuthintela amadyungudyungu:
1. Khetha izongezo ezihambelanayo: Xa usebenzisa i-HPMC, kubalulekile ukukhetha izongezo ezihambelanayo. Oku kunceda ukuqinisekisa ukuba umxube uzinzile kwaye i-additive nganye yenza umsebenzi wayo ojoliswe kuyo ngaphandle kokuphazamisa abanye.
2. Gxuma ngokulinganayo: I-HPMC kufuneka ixutywe ngokupheleleyo kunye ne-putty powder ukuqinisekisa ukusabalalisa. Oku kunceda ukukhusela amaqhuma kunye namabala abuthathaka kumphezulu weputty powder.
3. Ukulawula ukufuma: Ukulawula ukufuma kubalulekile xa usebenzisa i-HPMC kunye ne-putty powder. Qinisekisa ukuba i-putty powder ayidibanisi nomswakama ogqithiseleyo ngexesha lokwakhiwa, kwaye ugweme ukwakhiwa phantsi komswakama ophezulu okanye iimeko ezimanzi. Ukuba kuyimfuneko, sebenzisa i-dehumidifier ukunciphisa ukufuma okusemoyeni.
4. Sebenzisa iSicelo esiLungileyo seSicelo: Indlela efanelekileyo yokufaka isicelo nayo iya kunceda ukuthintela ukudumba. Faka i-putty powder kwindawo encinci, elinganayo kwaye uyifake kwi-substrate nge-trowel okanye esinye isixhobo esifanelekileyo. Kuphephe ukusebenzisa iputty powder engqindilili kakhulu, ngokukhawuleza okanye ngamandla amaninzi.
5. Qwalasela i-substrate: I-substrate apho i-putty powder ifakwe kuyo ichaphazela umngcipheko wokuqhuma. Qinisekisa ukuba i-substrate iphiliswe ngokufanelekileyo, icocwe kwaye ilungiswe ngaphambi kokufaka i-putty powder. Ukuba kuyimfuneko, i-primer ingasetyenziselwa ukuphucula ibhondi phakathi kwe-substrate kunye ne-putty powder.
Ukuqukumbela, ukubetha kunokuba yingxaki ephazamisayo kwaye engabonakaliyo xa usebenza ne-HPMC kunye ne-putty powder. Nangona kunjalo, le meko inokuthintelwa ngokuqwalasela ngokufanelekileyo izinto, ubuchule kunye neemeko zokusingqongileyo ezibandakanyekayo. Ngokukhetha izongezo ezihambelanayo, ukuxuba kakuhle, ukulawula ukufuma, ukusebenzisa iindlela ezifanelekileyo zokusebenzisa, kunye nokuqwalasela i-substrate, unokuqinisekisa ukugqitywa okugudileyo, okungenayo i-bubble rhoqo. Njengomvelisi ophambili we-HPMC, sizimisele ukubonelela ngeemveliso ezikumgangatho ophezulu ezihlangabezana neemfuno zabathengi bethu. Siyathemba ukuba eli nqaku libe luncedo ekuqondeni ukuba kutheni i-HPMC kunye ne-putty powder foam kunye nendlela yokukhusela.
Ixesha lokuposa: Jul-20-2023