1. Incamake
Hamwe niterambere ryihuse ryikoranabuhanga mu itumanaho n’itumanaho, insinga za optique, nkibanze mu gutwara amakuru agezweho, bigenda bisabwa byinshi mu mikorere no mu bwiza.Polybutylene terephthalate (PBT), nka plastiki yubuhanga ya termoplastique ifite imikorere myiza yuzuye, igira uruhare runini mugukora insinga za optique. PBT ikorwa na polymerisiyasi ya dimethyl terephthalate (DMT) cyangwa aside terephthalic (TPA) na butanediol nyuma ya esterification. Nimwe mubintu bitanu rusange-bigamije gukora plastike yubuhanga kandi byabanje gutunganywa na GE kandi byateye imbere mu myaka ya za 70. Nubwo byatangiye bitinze, byateye imbere byihuse. Bitewe nibikorwa byiza byuzuye, bitunganijwe neza hamwe nigiciro cyinshi, ikoreshwa cyane mubikoresho byamashanyarazi, imodoka, itumanaho, ibikoresho byo murugo nibindi bice. Cyane cyane mugukora insinga za optique, ikoreshwa cyane mugukora fibre optique fibre irekuye kandi ni ubwoko bwingirakamaro bwibikoresho byifashishwa cyane mubikoresho fatizo byinsinga za optique.
PBT ni amata yera igice-kibonerana kuri poliester ya opaque igice cya kirisiti ya kirisitu hamwe nubushyuhe buhebuje no gutunganya neza. Imiterere ya molekile yayo ni [(CH₂) ₄OOCC₆H₄COO] n. Ugereranije na PET, ifite andi matsinda abiri ya methylene mubice byurunigi, itanga urunigi rwingenzi rwa molekuline imiterere ihindagurika kandi ihinduka neza. PBT ntabwo irwanya aside ikomeye na alkalis ikomeye, ariko irashobora kurwanya imashanyarazi myinshi kandi ikabora kubushyuhe bwinshi. Bitewe nubwiza buhebuje bwumubiri, ituze ryimiti nogutunganya imikorere, PBT yahindutse ibikoresho byubaka mubikorwa byinganda za optique kandi ikoreshwa cyane mubicuruzwa bitandukanye bya PBT kubikoresho byitumanaho ninsinga za optique.
2. Ibiranga ibikoresho bya PBT
Ubusanzwe PBT ikoreshwa muburyo bwahinduwe. Mugushyiramo flame retardants, imbaraga zongerera imbaraga nubundi buryo bwo guhindura, kurwanya ubushyuhe bwayo, kubika amashanyarazi no guhuza n'imihindagurikire y'ikirere birashobora kurushaho kunozwa. PBT ifite imbaraga zo gukanika cyane, gukomera no kwambara birwanya, kandi irashobora kurinda neza fibre optique iri mumigozi ya optique kugirango itangirika. Nka kimwe mubikoresho bisanzwe biboneka kumashanyarazi ya optique, resin ya PBT yemeza ko ibicuruzwa bya optique bifite imiterere ihindagurika kandi ihamye mugihe ikomeza imbaraga zubaka.
Hagati aho, ifite imiti itajegajega kandi irashobora kurwanya itangazamakuru ryangirika, ryemeza imikorere yigihe kirekire yimigozi ya optique mubidukikije bigoye nkubushuhe hamwe nu gutera umunyu. Ibikoresho bya PBT bifite ubushyuhe buhebuje kandi birashobora gukomeza gukora neza ndetse no mubushyuhe bwo hejuru, bigatuma bikenerwa na kabili ya optique mubice bitandukanye byubushyuhe. Ifite imikorere myiza yo gutunganya kandi irashobora gushirwaho no gukuramo, gushushanya inshinge nubundi buryo. Irakwiranye na optique ya kabili iteranya imiterere nuburyo butandukanye kandi ni plastike yubuhanga ikora cyane ikoreshwa mugukora insinga.
3. Gushyira mu bikorwa PBT mu nsinga nziza
Mubikorwa byo gukora insinga ya optique, PBT ikoreshwa cyane mugukora imiyoboro irekuye yafibre optique. Imbaraga zacyo zikomeye hamwe nubukomezi birashobora gushyigikira neza no kurinda fibre optique, bikarinda ibyangiritse biterwa nibintu bifatika nko kunama no kurambura. Mubyongeyeho, ibikoresho bya PBT bifite ubushyuhe bwiza bwo kurwanya no kurwanya gusaza, bifasha kuzamura ituze no kwizerwa kwinsinga za optique mugihe kirekire. Nibimwe mubikoresho byingenzi bya PBT bikoreshwa mumigozi ya optique kurubu.
PBT nayo ikoreshwa kenshi nkicyuma cyo hanze cyinsinga za optique. Urupapuro ntirukeneye gusa imbaraga zubukanishi kugira ngo ruhangane n’imihindagurikire y’ibidukikije, ariko kandi rugomba kugira imbaraga zo guhangana n’imyenda myiza, kurwanya ruswa y’imiti ndetse no kurwanya gusaza kwa UV kugira ngo ubuzima bwa serivisi ya kabili optique mu gihe cyo kurambika hanze, ahantu hacucitse cyangwa mu nyanja. Amashanyarazi ya optique afite ibyangombwa byinshi byo gutunganya no guhuza ibidukikije na PBT, kandi PBT resin yerekana neza guhuza neza.
Muri optique ya kabili ihuriweho, PBT irashobora kandi gukoreshwa mugukora ibice byingenzi nkibisanduku bihuriweho. Ibi bice bigomba kuba byujuje ibyangombwa bisabwa kugirango ushireho kashe, birinda amazi ndetse n’imihindagurikire y’ikirere. Ibikoresho bya PBT, hamwe nibintu byiza byumubiri hamwe nuburyo butajegajega, ni amahitamo akwiye cyane kandi afite uruhare runini rwubufasha muri sisitemu ya optique ya kabili.
4. Gutunganya ingamba
Mbere yo gutunganya inshinge, PBT igomba gukama kuri 110 ℃ kugeza kuri 120 ℃ mugihe cyamasaha 3 kugirango ikureho ubuhehere bwanduye kandi wirinde ko habaho ibibyimba cyangwa ubunebwe mugihe cyo gutunganya. Ubushyuhe bwo kubumba bugomba kugenzurwa hagati ya 250 ℃ na 270 and, kandi ubushyuhe bwububiko burasabwa gukomeza kuri 50 ℃ kugeza 75 ℃. Kuberako ubushyuhe bwikirahure bwa PBT ari 22 only gusa kandi igipimo cyo gukonjesha kristalisiti cyihuta, igihe cyacyo cyo gukonja ni gito. Mugihe cyo guterwa inshinge, birakenewe kurinda ubushyuhe bwa nozzle kuba buke cyane, bushobora gutuma umuyoboro utemba uhagarikwa. Niba ubushyuhe bwa barrile burenze 275 ℃ cyangwa ibikoresho byashongeshejwe bikagumaho igihe kirekire, birashobora gutera kwangirika kwubushyuhe no gutwikwa.
Birasabwa gukoresha irembo rinini ryo gutera inshinge. Sisitemu ishyushye ya sisitemu ntigomba gukoreshwa. Ifumbire igomba gukomeza ingaruka nziza. Ibikoresho bya PBT birimo flame retardants cyangwa ibirahure bya fibre fibre ntibisabwa kongera gukoreshwa kugirango wirinde kwangirika kwimikorere. Iyo imashini ifunze, ingunguru igomba gusukurwa mugihe hamwe nibikoresho bya PE cyangwa PP kugirango birinde karubone yibikoresho bisigaye. Ibipimo byo gutunganya bifite akamaro gakomeye kayobora kubikoresho bya optique ya fibre optique mubikoresho binini binini.
5. Ibyiza byo gusaba
Porogaramu ya PBT mumashanyarazi ya optique yazamuye cyane imikorere rusange yinsinga. Imbaraga zayo zikomeye nubukomezi byongera imbaraga zo kurwanya no kunanirwa numurongo wa optique, kandi bikongerera igihe cyo gukora. Hagati aho, uburyo bwiza bwo gutunganya ibikoresho bya PBT bwazamuye umusaruro kandi bugabanya ibiciro byinganda. Uburyo bwiza bwo kurwanya gusaza hamwe n’imiti yangiza ruswa ya optique ituma ikomeza gukora neza igihe kirekire ahantu habi, bikongerera cyane kwizerwa no gufata neza ibicuruzwa.
Nkicyiciro cyingenzi mubikoresho fatizo byinsinga za optique, resin ya PBT igira uruhare mubikorwa byinshi byubatswe kandi ni kimwe mubikoresho bya plasitiki yubushyuhe bwa termoplastique abakora insinga za optique bashira imbere muguhitamo ibikoresho byinsinga.
6. Imyanzuro n'ibiteganijwe
PBT ibaye ibikoresho by'ingenzi mu rwego rwo gukora insinga ya optique bitewe n'imikorere yayo idasanzwe mu mashini, ubukana bw’umuriro, kurwanya ruswa no gutunganya. Mugihe kizaza, nkuko inganda zikoresha itumanaho zikomeza kuzamura, ibisabwa biri hejuru bizashyirwa mubikorwa byimikorere. Inganda za PBT zigomba gukomeza guteza imbere udushya mu ikoranabuhanga no guteza imbere ibidukikije bibungabunga ibidukikije, bikarushaho kunoza imikorere yuzuye no gukora neza. Mugihe wujuje ibyangombwa bisabwa, kugabanya gukoresha ingufu nigiciro cyibikoresho bizafasha PBT kugira uruhare runini mumigozi ya optique hamwe nurwego runini rwibikorwa.
Igihe cyo kohereza: Jun-30-2025