Ukusetyenziswa kwe-HPMC (i-hydroxypropyl methylcellulose) kwi-silicone sealants ineenzuzo ezininzi, ngakumbi kwintsimi ehambelana nokutywinwa kwebhetri. I-HPMC ngokwayo i-ether ye-cellulose eguquliweyo enokunyibilika okuqinileyo kwamanzi kunye neempawu ezityebisayo, ngoko isetyenziswe ngokubanzi kwii-sealants ze-industrial, izinto zokwakha kunye nokutywinwa kwebhetri.
1. Ukusebenza okugqwesileyo kokuqina
I-HPMC inamandla okuqina okuqina, okwenza ukuba ikwazi ukuphucula ngokufanelekileyo iimpawu ze-rheological ze-silicone sealants. Ngokudibanisa i-HPMC kwifomyula, i-colloid inokulawula ngcono ubuninzi bayo kunye ne-viscosity, iqinisekisa ukubeka okuchanekileyo kunye nokumila okuzinzileyo ngexesha lokusetyenziswa. Oku kubaluleke kakhulu kwiimpawu zebhetri, ezinokuqinisekisa ukuba izinto zokutywina zisasazwa ngokulinganayo kumalungu eenxalenye zebhetri, ukunciphisa ukuhamba okungeyomfuneko kunye nokuvuza.
2. Iipropati ezilungileyo zokwenza ifilimu
I-HPMC ineempawu ezilungileyo zokwenza ifilim. Xa isetyenziswe kwii-silicone sealants, inokunceda i-colloid ifake ifilimu efanayo kunye nefilimu yokukhusela xa iphiliswa. Lo mboniso wefilimu awunayo kuphela iimpawu zokungangeni kwamanzi kunye nobungqina bomswakama, kodwa kwakhona ukuthintela ngokufanelekileyo impembelelo yendawo yangaphandle kumacandelo angaphakathi ebhetri. Kwiinkqubo zebhetri ezinobuthathaka ezifana neebhetri ze-lithium-ion, ubukho befilimu ekhuselayo kunokuphucula ubomi babo nokuzinza.
3. Ukubambelela okuphuculweyo
Ekutywineni ibhetri, ukuncamathela kwesixhobo sokutywina kubalulekile ukuqinisekisa ukungangeni komoya kwebhetri. I-HPMC inokuphucula ukunamathela kwe-silicone sealants, evumela ukuba badibanise ngcono kunye nemigangatho eyahlukeneyo yezinto (kubandakanywa iiplastiki, isinyithi, iglasi, njl.). Le propati iqinisekisa ukuba i-battery sealant inokuhlala izinzile ixesha elide, ukukhusela izinto zangaphandle ezifana nomoya kunye nomswakama ekungeneni kwebhetri kwaye zonakalisa ukusebenza kwebhetri.
4. Ukuphuculwa kokumelana nobushushu
I-HPMC inozinzo oluhle lwe-thermal kwiindawo zobushushu obuphezulu, ngoko ke ii-silicone sealants ezine-HPMC ezidityanisiweyo zinokugcina iimpawu zabo zoomatshini kunye neziphumo zokutywina ngaphakathi koluhlu oluphezulu lobushushu. Kwiibhetri ezifuna ukusebenza kwiindawo eziphezulu zokushisa ixesha elide (ezifana neebhetri zemoto zombane, iibhetri zokugcina amandla elanga, njl.), oku kumelana nokushisa kubaluleke kakhulu kwaye kunokuphucula ukhuseleko kunye nobomi benkonzo yebhetri.
5. Ukusebenza kakuhle kolwakhiwo
Iipropati ezityebileyo kunye nokuthambisa ze-HPMC zenza ukuba i-silicone sealants ibe lula ukusebenza ngexesha lokwakha. I-colloid ine-fluid ephakathi kwaye inokusetyenziswa ngokulula kwiindawo ezincinci ezahlukeneyo zebhetri ngaphandle kokubangela ubunzima bokwakha ngenxa yokuhamba ngokugqithiseleyo. Oku akugcini nje ukuphucula ukusebenza kokutywinwa, kodwa kunciphisa inkunkuma yezinto eziphathekayo ngexesha lenkqubo yokwakha.
6. Ukumelana nemozulu okugqwesileyo
I-HPMC inika i-silicone sealant yokumelana nemozulu elungileyo. Xa ibonakaliswe kwizinto ezisingqongileyo ezifana nemitha ye-ultraviolet, i-oksijini, kunye nomphunga wamanzi ixesha elide, i-sealant isenokugcina ukuqina kwayo, ukunamathela kunye neempawu zomzimba. Kwizixhobo zokusebenza zexesha elide ezifana neebhetri, oku kuxhathisa kwemozulu kuqinisekisa ukuba izinto zokutywinwa ngaphakathi kwebhetri aziyi kuphumelela ngenxa yokutshintsha kwendalo, ngaloo ndlela kuphuculwe ukuthembeka okupheleleyo kwebhetri.
7. Ukuzinza kweekhemikhali kunye nokukhuselwa kwendalo
I-HPMC yinto ezinzileyo eneempawu zeekhemikhali, ezinokuthintela ngokufanelekileyo i-silicone sealant ekuphenduleni kakubi kunye neekhemikhali zangaphandle ngexesha lokusetyenziswa. Ngaxeshanye, HPMC ngokwayo imathiriyeli yendalo kunye biodegradability elungileyo. Ke ngoko, xa kuthelekiswa nezinye izongezo zekhemikhali, inempembelelo encinci kokusingqongileyo kwaye ihlangabezana neemfuno zoshishino lwanamhlanje kwizinto ezihambelana nokusingqongileyo.
8. Nciphisa ukusasazwa komswakama
I-HPMC ineempawu ezigqwesileyo zokugcina amanzi, okuthetha ukuba inokunciphisa kakhulu izinga lokusasazwa kokufuma kwi-sealant. Ukutywinwa kwebhetri, olu phawu lunokuthi luthintele ngakumbi amalungu angaphakathi ebhetri ekubeni akhukuliswe ngumphunga wamanzi, ngaloo ndlela anciphisa umngcipheko wokungaphumeleli kokusabela kwe-electrochemical okanye i-short circuit ebangelwa kukungena kokufuma.
9. Ukuphucula ukuqina kwee-sealants
Ubukho be-HPMC bunokuphucula ngokufanelekileyo i-elasticity ye-silicone sealants, ebavumela ukuba bagcine ukutywinwa kwabo kunye nokunyaniseka xa bechatshazelwa kukungcangcazela kwangaphandle, uxinzelelo lomatshini, okanye ukwandiswa kwe-thermal kunye nokunciphisa. Oku kubaluleke kakhulu kwiibhetri zesixhobo esiphathwayo okanye iibhetri ezihlala zikwimo yokungcangcazela (ezifana nezixhobo ze-aerospace kunye neebhetri zeemoto), ziqinisekisa ukuzinza kwezixhobo kwiimeko ezigqithisileyo.
10. Lawula isantya sokumisa se-colloid
Ngexesha lokumisa kunye nokunyanga inkqubo ye-silicone sealants, i-HPMC inokunceda ukulawula izinga lokunyuka kwamanzi, ngaloo ndlela igweme ukuqhekeka okanye ukunyangeka okungalinganiyo okubangelwa ukomisa ngokukhawuleza kwendawo ye-colloid. Oku kubaluleke kakhulu kuqulunqo lwe-betri sealant efuna ixesha elide lokunyanga, elinokuqinisekisa ukusebenza kokutywinwa kunye neempawu ezibonakalayo zemveliso yokugqibela.
Ukusetyenziswa kwe-HPMC kwii-silicone sealants kuneenzuzo ezininzi ezibalulekileyo, ngakumbi kwintsimi yee-sealants zebhetri. Akukona nje ukuphucula ukubambelela, iipropati zokwenza ifilimu kunye nokuchasana nokushisa kwe-sealant, kodwa kwakhona kunika ukhuseleko olungcono lwebhetri ngokunyusa ukuqina kwayo, ukuchasana kwemozulu kunye nokusebenza kokwakhiwa. Kwangaxeshanye, iimpawu zokhuseleko lokusingqongileyo HPMC ukuhlangabezana neemfuno ishishini langoku kuphuhliso oluzinzileyo, kwaye yongezelela egqwesileyo kunye nokusingqongileyo friendly. Ngoyilo olufanelekileyo lwefomula kunye nohlengahlengiso lwenkqubo, i-HPMC inokunceda ukuvelisa i-silicone sealants ephezulu yokusebenza, idlala indima ebalulekileyo ekutywinweni kwebhetri, ubunjineli bokwakha kunye nezinye iinkalo.
Ixesha lokuposa: Oct-16-2024