Ikidodo cya silicone cyabaye ihitamo ryambere ryinzobere na DIYers kimwe mugihe cyo gufunga ahantu hatandukanye.Ikirangantego cya silicone gifite imiterere ihebuje kandi ihindagurika, itanga igihe kirekire cyigihe kirekire kubikorwa bitandukanye.Mu bwoko bwa kashe ya silicone yagurishijwe ku isoko, kashe ya alkoxy silicone hamwe na acetoxy silicone kashe ni ubwoko bubiri buzwi.Muri aya makuru, tuzareba byimbitse kumiterere yibi bimenyetso, ibyiza n'ibibi, kandi tugufashe kumenya amahitamo meza kubyo ukeneye byihariye.
1.Itandukaniro ryuburyo:
Ubwa mbere, reka dusuzume itandukaniro ryimiterere hagati ya alkoxy na acetoxy.Itsinda rya alkoxy rigizwe nitsinda rya alkyl (R-) rihujwe na atome ya ogisijeni (-O-).Mu byingenzi, ni ihuriro ryitsinda rya alkyl na ogisijeni.
Mu bundi buryo, acetoxy ikomoka kuri acide acike.Harimo itsinda rya acetyl (CH3CO-) rihujwe na atome ya ogisijeni (-O-).Rero, acetoxy irashobora gufatwa nkitsinda rya alkyl ryasimbujwe na ogisijeni mumyuka ya acetyl.
Itandukaniro ryimiterere riganisha ku itandukaniro ryimiterere yimiti no gukora reaction hagati ya alkoxy na acetoxy.Nka matsinda ya alifatique ikora, alkoxy yerekana nucleophilique kandi rimwe na rimwe ikora nk'itsinda riva.Iyi myitwarire ahanini ishingiye kubiranga nibisimbuza itsinda rya alkyl ifatanye na atome ya ogisijeni.Kubera ko amatsinda ya alkoxy adakora, asabwa ingufu za electrophile cyangwa catalizator kugirango atangire reaction.
Ibinyuranye, amatsinda ya acetoxy yerekana reaction zitandukanye bitewe no kuba hari amatsinda ya acetyl.Umuvuduko wa acetyl hamwe na karuboni nziza igice cyayo bigira uruhare mumiterere ya electrophilique ya groupe acetoxy.Kubwibyo, itsinda rya acetoxy rigira uruhare rugaragara muri reaction ya acetylation, ryimura acetyl moiile kuri molekile zindi.Imyitwarire ya Acetylation iragaragara hose muguhuza ibiyobyabwenge, ibicuruzwa karemano nibindi binyabuzima bitandukanye.
2. Ikimenyetso cya Alkoxy silicone: Kurekura ibintu bishya bishoboka
Alkoxy silicone kashe ya kashe yakozwe muburyo budasanzwe bushingiye ku buhanga bwo gukiza alkoxy.Ikidodo kizwiho kuba cyiza cyo guhuza ibintu bitandukanye, harimo ibirahure, ububumbyi, na plastiki zimwe.Ubushobozi bwabo bwo kwihanganiraubushyuhe bwinshinakurwanya imirasire ya UVituma bahitamo bwa mbere kubisabwa hanze.Mubyongeyeho, kashe ya alikokisile ya silicone ifite ibyizakurwanya ikirere, kwemeza ibisubizo birambye.Bitewe na bomoduluskandi bihindagurika cyane, birashobora kwakira ingendo zihuriweho, bigatuma biba byiza kubikorwa bya dinamike.Inyungu igaragara ya kashe ya alikokisile ya silikone niyaboumunuko mukemugihe cyo gukira, bigatuma barushaho gukoresha-ahantu hafunze.
3.Acetoxy Silicone Sealants: Yageragejwe kandi Yageragejwe
Kashe ya Acetoxy silicone, kurundi ruhande, yishingikiriza tekinoroji yo gukiza acetoxy.Ikidodo cyakoreshejwe cyane mumyaka mirongo kandi kizwiho uburyo bwo gufunga ibintu byinshi.Bakora umurunga ukomeye hamwe nibikoresho bisanzwe byubaka, birimo ibirahure, ibyuma na ceramika.Acetoxy silicone kashe irangwa nagukira vubakandi byizakurwanya ubushuhe.Uyu muti wihuse utuma imishinga yihuta kandi yoroshye.Menya ariko, ko kashe ya acetoxy silicone ishobora gusohora umunuko umeze nka vinegere nkuko bikiza, bityo guhumeka bihagije ni ngombwa.
4.Hitamo neza kashe ya silicone
Gusobanukirwa imiterere yihariye ya buri bwoko bwa silicone kashe ni ngombwa kugirango ufate icyemezo kiboneye.Ibintu nkimbaraga zidasanzwe, ubushobozi bwo guhuza, gukiza igihe, guhinduka, impumuro nibisabwa byumushinga bigomba gusuzumwa.Aho kurwanya imirasire ya UV, ubushyuhe bukabije hamwe nikirere cyo hanze birakomeye, kashe ya silikoni ya alkoxylated ikunze guhitamo.Acetoxy silicone kashe ifite imiti ikiza kandi ni amahitamo meza kumishinga isaba igihe cyo guhinduka byihuse hamwe nubusabane bukomeye bwambere.Na none, birakwiye ko tumenya ko ubwoko bwombi bwa kashe buraboneka mumabara atandukanye, butanga amahitamo meza kubisabwa bisaba kurangiza neza.
Umwanzuro
Hamwe na hamwe, kashe ya alkoxy na acetoxy silicone itanga inyungu zidasanzwe bitewe nibisabwa byumushinga.Icyemezo cya nyuma giterwa nibintu bifatika, gukiza igihe, guhinduka, impumuro nibintu bidukikije.Urebye amakuru yatanzwe muri aya makuru, urashobora guhitamo wizeye neza kashe ya silicone ikwiranye nibyo ukeneye.
Igihe cyoherejwe: Nyakanga-26-2023