Ukusetshenziswa kwe-HPMC (i-hydroxypropyl methylcellulose) kuma-silicone sealants kunezinzuzo eziningi, ikakhulukazi emkhakheni ohlobene nezinsimbi zebhethri. I-HPMC ngokwayo iyi-ether ye-cellulose eguquliwe enokuncibilika okuqinile kwamanzi kanye nezakhiwo eziqina, ngakho-ke isetshenziswe kabanzi kuma-sealant ezimbonini, izinto zokwakha kanye nezimpawu zebhethri.
1. Ukusebenza okuhle kakhulu kokuqina
I-HPMC inekhono eliqinile lokujiya, eliyenza ikwazi ukuthuthukisa ngempumelelo izakhiwo ze-rheological zama-silicone sealants. Ngokungeza i-HPMC kufomula, i-colloid ingakwazi ukulawula kangcono uketshezi nokubonakala kwayo, iqinisekise ukuma okunembile kanye nokuma okuzinzile ngesikhathi sokusetshenziswa. Lokhu kubaluleke kakhulu kuma-sealant ebhethri, angaqinisekisa ukuthi impahla yokuvala isatshalaliswa ngokulinganayo emalungeni ezingxenye zebhethri, okunciphisa ukugeleza nokuvuza okungadingekile.
2. Izakhiwo ezinhle zokwenza ifilimu
I-HPMC inezinto ezinhle zokwenza ifilimu. Uma isetshenziswa kuma-silicone sealants, ingasiza i-colloid ukuthi ifake iyunifomu nefilimu yokuzivikela eqinile uma ilashwa. Lesi singqimba sefilimu asigcini nje ngokuba nezici zokungangeni kwamanzi kanye nomswakama-umswakama, kodwa futhi sivimbela ngokuphumelelayo ithonya lemvelo yangaphandle ezingxenyeni zangaphakathi zebhethri. Kuzinhlelo zebhethri ezibucayi ezifana namabhethri e-lithium-ion, ukuba khona kwefilimu evikelayo kungathuthukisa impilo yabo nokuzinza.
3. Ukunamathela okuthuthukisiwe
Ekuvaleni ibhethri, ukunamathela kwempahla yokuvala kubalulekile ukuze kuqinisekiswe ukungangeni komoya kwebhethri. I-HPMC ingathuthukisa ukunamathela kwama-silicone sealants, iwavumele ukuthi ahlangane kangcono nezindawo ezihlukahlukene ezibonakalayo (okuhlanganisa amapulasitiki, izinsimbi, ingilazi, njll.). Lesi sici siqinisekisa ukuthi i-sealant yebhethri ingahlala izinzile isikhathi eside, ivimbela izinto zangaphandle ezifana nomoya nomswakama ukuthi zingangeni ebhethrini futhi zilimaze ukusebenza kwebhethri.
4. Ukumelana nezinga lokushisa okuthuthukisiwe
I-HPMC inokuzinza okuhle kwe-thermal ezindaweni zokushisa okuphezulu, ngakho-ke ama-silicone sealant ane-HPMC engeziwe angagcina izakhiwo zawo zomshini kanye nemiphumela yokuvala ngaphakathi kwebanga lokushisa eliphezulu. Kumabhethri adinga ukusebenza ezindaweni zokushisa okuphezulu isikhathi eside (njengamabhethri emoto kagesi, amabhethri okugcina amandla elanga, njll.), lokhu kumelana nezinga lokushisa kubaluleke kakhulu futhi kungathuthukisa ukuphepha nempilo yesevisi yebhethri.
5. Ukusebenza okuhle kokwakha
Izakhiwo ezijiyayo nezokugcoba ze-HPMC zenza ama-silicone sealant asebenze kalula ngesikhathi sokwakha. I-colloid inoketshezi olumaphakathi futhi ingasetshenziswa kalula ezingxenyeni ezincane ezihlukahlukene zebhethri ngaphandle kokubangela ubunzima bokwakha ngenxa yokugeleza ngokweqile. Lokhu akugcini nje ukuthuthukisa ukusebenza kahle kokuvala, kodwa futhi kunciphisa imfucuza yezinto ezibonakalayo ngesikhathi sokwakha.
6. Ukumelana nesimo sezulu esihle kakhulu
I-HPMC inikeza i-silicone sealant ukumelana nesimo sezulu esihle. Uma kuvezwa izici zemvelo njengemisebe ye-ultraviolet, umoya-mpilo, nomhwamuko wamanzi isikhathi eside, i-sealant isengakwazi ukugcina ukunwebeka kwayo, ukunamathela kanye nezakhiwo zomzimba. Emishinini yokusebenza yesikhathi eside njengamabhethri, lokhu kumelana nesimo sezulu kuqinisekisa ukuthi izinto zokuvala ngaphakathi kwebhethri ngeke zehluleke ngenxa yezinguquko zemvelo, ngaleyo ndlela kuthuthukisa ukwethembeka okuphelele kwebhethri.
7. Ukuzinza kwamakhemikhali nokuvikelwa kwemvelo
I-HPMC iyinto ezinzile enezici zamakhemikhali, ezingavimbela ngempumelelo i-silicone sealant ekuphenduleni kabi ngamakhemikhali angaphandle ngesikhathi sokusetshenziswa. Ngesikhathi esifanayo, i-HPMC ngokwayo iyimpahla yemvelo enokubola okuhle kwe-biodegradability. Ngakho-ke, uma kuqhathaniswa nezinye izithasiselo zamakhemikhali, inomthelela omncane emvelweni futhi ihlangabezana nezidingo zemboni yesimanje zezinto ezithinta imvelo.
8. Yehlisa ukusabalala komswakama
I-HPMC inezinto ezinhle kakhulu zokugcina amanzi, okusho ukuthi inganciphisa kakhulu izinga lokusabalalisa lomswakamo ku-sealant. Ukuze ibhethri livalwe, lesi sici singaqhubeka sinqande izingxenye zangaphakathi zebhethri ukuthi zingaguguleki umhwamuko wamanzi, ngaleyo ndlela zehlise ingcuphe yokuhluleka kokusabela kwe-electrochemical noma i-short circuit ebangelwa ukungena komswakama.
9. Thuthukisa ukunwebeka kwama-sealant
Ukuba khona kwe-HPMC kungase futhi kuthuthukise ngempumelelo ukunwebeka kwama-silicone sealant, okuzivumela ukuthi zigcine ukuvalwa kwazo nobuqotho lapho zithintwa ukudlidliza kwangaphandle, ukucindezeleka komshini, noma ukunwetshwa kokushisa nokufinyela. Lokhu kubaluleke kakhulu kumabhethri edivayisi yeselula noma amabhethri avame ukuba sesimweni sokudlidliza (njengezinto ze-aerospace namabhethri ezimoto), okuqinisekisa ukuzinza kwezisetshenziswa ezimweni ezimbi kakhulu.
10. Lawula isivinini sokumisa se-colloid
Phakathi nenqubo yokomisa nokwelapha yama-silicone sealants, i-HPMC ingasiza ukulawula izinga lokuhwamuka kwamanzi, ngaleyo ndlela igweme ukuqhekeka noma ukuphulukiswa okungalingani okubangelwa ukomiswa ngokushesha okukhulu kwe-colloid surface. Lokhu kubaluleke kakhulu ekwenziweni kwesivalo sebhethri esidinga isikhathi eside sokwelashwa, esingaqinisekisa ukusebenza kokuvala kanye nezakhiwo ezibonakalayo zomkhiqizo wokugcina.
Ukusetshenziswa kwe-HPMC kuma-silicone sealants kunezinzuzo eziningi ezibalulekile, ikakhulukazi emkhakheni wama-sealant webhethri. Akugcini nje ukuthuthukisa ukunamathela, izakhiwo zefilimu kanye nokumelana nokushisa kwe-sealant, kodwa futhi inikeza ukuvikelwa okungcono kwebhethri ngokuthuthukisa ukuqina kwayo, ukumelana nesimo sezulu nokusebenza kokwakhiwa. Ngesikhathi esifanayo, izici zokuvikela imvelo ze-HPMC zihlangabezana nezidingo zemboni yesimanje ukuze ithuthuke esimeme, futhi iyisengezo esihle kakhulu nesihambisana nemvelo. Ngokuklanywa kwefomula okunengqondo nokulungiswa kwenqubo, i-HPMC ingasiza ukukhiqiza ama-silicone sealant asebenza kahle kakhulu, edlala indima ebalulekile ekuvaleni amabhethri, ubunjiniyela bokwakha nezinye izinkambu.
Isikhathi sokuthumela: Oct-16-2024