Amatungo ya firime
Amatungo, Polycondensiya, ikoreshwa cyane cyane muri firime zo gupakira ibiryo hamwe na fibre yimyenda, mubindi bikorwa. Ubu biragenda bikoreshwa nkibikoresho bipakira, ntabwo ari amacupa ya soda gusa, ahubwo no muri Perphous Pet (APEPhous), inyamanswa ya Crystalline (COPPETHaline Pet. Mu myaka itanu ishize, inyamanswa zigendanwa na copolesters, nkibicuruzwa bishya bya polymer, byakoreshejwe mubuhanga nibikoresho byihariye byo gupakira, nibindi.
Intsinzi y'amatungo mubipfunyika ya soda biterwa n'ubutori bwayo no gukorera mu mucyo, ubushobozi bwo kwerekeza, agaciro k'ubukungu, no guteza imbere ikoranabuhanga ryo gutunganya amacunga ryihuta. Amabati y'ibinyobwa afite, ibinyobwa, byashobokaga, kandi mugire ibyiza. Icupa rya litiro rya litiro 2 ryamatungo ni 24% yoroheje kuruta icupa risa nikirahuri; Icupa ryubusa ripima 1/10 ryicupa ryikirahure ringana. Ibi bizigamiza imirimo, imbaraga, nibiciro mumahuza yose kubakora umuguzi.
Chimie na Protirties
Amatungo y'ibinyobwa bikozwe muri aside ya terephthalic (TPA) yabonetse na okidation ya p-XYolene. Acide ya Terephtha Ikindi kintu cyibanze cyamatungo ni ethane, gihindurwa kuri Ethylene Glycol (eg) na reaction. Amatungo ni agatsiniye polymer yakozwe na polymerizira ikomeza kuri DMT (cyangwa PTA) na eg muri leta yashongeshejwe, hanyuma inzira ya leta ikomeye kugirango ibone uburemere bunini bwa molecular hamwe nuburemere bwimbere. Inzira ikomeye-leta nayo ituma Ethanol ibikubiye muri polymer hasi bihagije.
Muri rusange amatungo yubucuruzi ya resin ashonga nka 480f (), ariko ingingo yo gushonga yamatungo maremare agera kuri 520f ().
Yerekeje amatungo yaka afite imbaraga nziza. Gukomera no gukorera mu mucyo, kandi ni urwanya acdan intege nke, ibishingwe n'ibiti byinshi.
Amanota yihariye
Kurambura kwibumba amatungo yo gutanga amanota arashobora gutanga ibara rikomeye, icyatsi kibisi nigituba cyumuhondo. Polymer polymer muri reaction ntabwo ikeneye kwiyongera hamwe ningaruka mbi kumitungo yumubiri, kandi itezimbere uburinganire. Ibisubizo byera byisura zitandukanye imbere birahari. Amatungo ya POPOLYMEST KRICDSTIZE buhoro, bituma bituma batanga amacupa nziza cyane ya soda hejuru yimiterere isanzwe yo gutunganya. Kurimbuka Gukuramo Polymer nayo irahari. Ibi bikoresho bihuza ibyiza byimbaraga nziza hamwe no gutinda guhagarara, kandi birashobora gutunganywa byoroshye ibikoresho bikwirakwira ibikoresho. Ibinyuranye, gucana urumuri nibindi byihariye polymes buri gihe bitangizwa cyangwa byahinduwe kugirango duhuze porogaramu nshya.
PetgCopolyester nurundi rugero rwumubare munini wa copolesters. Bitandukanye na PCTA, bihindurwa na aside, petg ni polymer yahinduwe muri diol yakozwe muguhuza na chdm diorm hamwe na tpa (aside terephthalic) na roylene glycol. Copolmers ya Petg irashobora kubumbabumbwe cyangwa gukomera kandi mubisanzwe igumaho Amorphous, mu mucyo kandi ifite ibara, ndetse no mu bice binini byambukiranya.
Ifite ubunebwe bwinshi, ubukana no gukomera neza, ndetse no mubushyuhe buke. Ihuriro ryimurikirana, gukomera no gushonga imbaraga zituma bihindura ibishushanyo mbonera, guhubuka no gukandamira imyirondoro, imiyoboro, firime. Petg iraboneka muburyo butazwi cyangwa hamwe ninyongeramusaruro zitandukanye, harimo abakozi barekuye, masterbatches, no guhindura ingaruka kugirango babumbanwe.
Petg igomba gukama saa 120-160f kumasaha agera kuri 4-6 mbere yo kubumba cyangwa gukandagira. Muri gahunda zombi, ubushyuhe bwashonga buva kuri 420f kugeza 510f. Igihe cyo gufata ibikoresho byo gutunganya kugeza ubushyuhe bwo hejuru bigomba kuba bigufi kugirango wirinde kwangirika cyane. Gutera inshinge bigomba gukorwa ku imashini ishingwamo, bisaba buri shoti kuba 50% kuri 80% byubushobozi bwayo.
Petas arashobora gukomera no guhunika kubushyuhe bwashonge hagati ya 400-450F kugirango akore amacupa ya Shampoo, ibikoresho byamazi, ibikomoka ku isuku, amavuta mabuye, nibipfunyika. Ibi bikoresho bihura nubuziranenge bwa FDA kugirango duhuze nibiryo.
Harashobora kubyara ibintu byinshi byihariye, kimwe no gupakira imiyoboro, firime, hamwe namabati, harimo gupakira ibikoresho byubuvuzi. Petg na PcTta birashobora guhonyora hamwe na etylene oxide na y rays.
Iyo ukoreshejwe mugushingwa, ubusanzwe perg itunganijwe kurubuga rwashonga bwa 450-50f, hamwe nubushyuhe bugera kuri 70-130-30f. Porogaramu igezweho harimo igifuniko cyimashini, inkinzo za mashini, ibikoresho byo kwisiga, ibikoresho bya lever, byerekana ibice n'ibikinisho.
Amatungo akoreshwa cyane muri soda nibipaki byoroshye. Amatungo afite hafi 100% ya litiro 2 yapakiye icuruzwa ridasubirwamo, na litiro 1.5, litiro 1, litiro ya metero 0.5 kandi amacupa mato nayo yaramenyekanye cyane.
Amatungo akoreshwa mubiryo, inzoga, ibikoresho. Gusaba amatungo biteganijwe ko bizakomeza gukura ibinyobwa bitari bike hamwe no gupakira inganda. Ibiryo bipakiwe birimo sinapi, ibicuruzwa bya rubber, amavuta y'ibishyimbo, ahine, amavuta yo guteka, cocktail n'amavuta ahinnye. Amabara mashya, cyane cyane amabara ya Weber, akunzwe mubipfunyika byimiti, vitamine nububiko.
Kimwe mu bishara gishya kandi byihuse kwiyongera kubikoresho byamatungo nibiryo cyangwa ibinyobwa, bisaba kuzuza ubushyuhe bwo hejuru. Ibiryo byinshi, cyane cyane imbuto cyangwa ibiryo cyangwa ibinyobwa bifite imbuto nyinshi, igomba gupakirwa saa 180f cyangwa irenga. Ibi bitanga pasteurisation (sterikaname) yibicuruzwa nibikoresho mugihe cyuzura. Ibikoresho bisanzwe bireba, nk'imifuka kuri soda n'ibinyobwa bidasembuye, bikunze kugabanuka no guhindura igihe byakorerwa ubushyuhe hejuru ya 160f, biterwa n'imihangayiko runaka. Guhangayikishwa no kwibanda byakozwe mugihe cyo kurambura kuri kontineri. Ikoranabuhanga ryateguwe kugirango riteze imbere ubushyuhe mugihe cyo gutunganya, mubisanzwe bivugwa ko ari "ubushyuhe". Ukurikije ikoranabuhanga ryihariye ryo gutunganya, hari amakuru menshi yo gutunganya, ninde nyirubwite, ashingiye kubikoresho bibereye kuzura muri 190-195F birashobora kubyara. Ibicuruzwa bisaba gupakira hamwe nibi biranga birimo imitobe yera. Ibinyobwa byo mu buto bw'ibinyobwa, icyayi, ibinyobwa bimwe na bimwe bya siporo n'ibinyobwa, bifatika, byibandaho n'amazi y'amabuye y'agaciro.
Ibindi bikorwa byamatungo bikoreshwa cyane mumashyamba yinjira hamwe na firime no kumpapuro. Amatungo akoreshwa nkibikoresho byo guhinga byiyongera kubipakimbo. Byongeye kandi, inyamanswa ya Crystalline (COPT) irashobora gukoreshwa nkibikoresho byibanze kugirango bikore inzira.
Filime yinyamanswa isanzwe iringaniye kandi ikoreshwa nka x-ray hamwe nandi firime zifotora, inyama n'ibipfunyika, amashanyarazi, amashanyarazi, amapaki yo gushinga amacupa. Amatungo nayo ikoreshwa nkibikoresho bya kate yinganda. Kutari Crystalline, amatungo yatanzwe kandi urupapuro rutemewe rutangiye gukoreshwa mugukora ibintu, trays, ibicuruzwa byibibyimba n'ibinyobwa.
Incamake: Petg ni verisiyo yazamuye amatungo, hamwe no gukorera mu mucyo hejuru, uburemere bukomeye, kurwanya ingaruka nziza, kandi birumvikana ko ari igiciro cyo hejuru.
Igihe cyagenwe: Feb-07-2025