Itandukaniro hagati ya TPU Polyyet Ubwoko bwa Polyester

Itandukaniro hagatiUbwoko bwa TPU polyethernaUbwoko bwa Polyester

TPU irashobora kugabanywamo ubwoko bubiri: ubwoko bwa polyether na polyester. Ukurikije ibisabwa bitandukanye bya porogaramu yibicuruzwa, ubwoko butandukanye bwa Tpus igomba gutorwa. Kurugero, niba ibisabwa byo kurwanya hydrolysis ari hejuru, ubwoko bwa polyet tpu bukwiriye kuruta ubwoko bwa polyester tpu.

Uyu munsi rero, reka tuvuge itandukaniro riri hagatiUbwoko bwa PolyEther TPUnaUbwoko bwa Polyester TPU, n'uburyo bwo kubitandukanya? Ibikurikira bizasobanurira ibintu bine: itandukaniro mubikoresho fatizo, itandukaniro ryubaka, kugereranya imikorere, nuburyo buranga.

1, itandukaniro mubikoresho fatizo

Nizera ko abantu benshi bazi igitekerezo cya elastomasi yo mu mitwe, ifite ibiranga imiterere yo kubamo ibice byoroheje kandi bikomeye, kimwe, kuzana guhinduka no gukomera kubikoresho.

TPU nayo ifite ibice byoroshye kandi bikomeye, kandi itandukaniro riri hagati yubwoko bwa polyther tpu na polyester ubwoko bwa TPU ibinyoma mumirongo yoroshye. Turashobora kubona itandukaniro nibikoresho fatizo.

Ubwoko bwa Polyether TPU: 4-4 '- Diphenythane Diisocyanate (MDI), Polytetrahydrofunate (PTMEG), 1,4-Butanediol (BDO) kuri MDI, 40% kuri PTMEG, na 20% kuri BDO.

Ubwoko bwa Polyester TPU: 4-4 '- Diphenythane Diisocyanate (MDI), 1,4-Butinetiol (BDO), Acide ya Adipike (AA yo kubara kuri 35%, na Bdo kuri 25%.

Turashobora kubona ko ibikoresho fatizo byerekana ubwoko bwa polyether Tpu Igice cyoroshye cyurunigi ni Polytetrahydrofuran (PTMEG); Ibikoresho fatizo bya Polyester TPU Ibice byoroshye byoroheje ni acide acide (a aside aside ya adipike hamwe na Butanetiol kugirango ishyireho ester nka chagment yoroshye.

2, itandukaniro ryimiterere

Urunigi rwa molekile rwa TPU rufite (ab) n-ubwoko bwa back umurongo, aho a ari uburemere bwiburengerazuba bwa molekile (1000-6000) Polyeter, na PolyEther, na PolyEther, hamwe nububiko hagati ya Ab Paisicraho.

Ukurikije imiterere itandukanye ya A, TPU irashobora kugabanywamo ubwoko bwa polyester, ubwoko bwa polterally, ubwoko bwa polycarbolactone, ubwoko bwa polycarbolactone, nibindi byinshi Ubwoko bwa polycarher ni ubwoko bwa TPU na Polycarter ubwoko bwa TPU.

Duhereye ku ishusho yavuzwe haruguru, turashobora kubona ko uruhago rukomeye rwa PolyUlar cya TPU na Polyyester ubwoko bwa TPU nibisobanuro byingenzi byubatswe nigice cyoroshye cya polywol cyangwa polyer polyel.

3, kugereranya imikorere

Polyyether PolyOls ni inzoga nyinshi cyangwa olomers hamwe na ethers intera nitsinda rya hydroxyl kumatsinda yanyuma kumurongo nyamukuru. Kubera imbaraga zayo zoroheje za ether ingofero mu miterere noroshye zo kuzunguruka.

Kubwibyo, Polyether TPU afite ubushyuhe buhebuje bworoshye, Kurwanya Hydrolyse, kurwanya ibitero, UV.

Amatsinda ya Ester afite imbaraga zikomeye zo guhuza igihe muri polyester polyOls irashobora gukora hydrogen ingwate hamwe nibice bikomeye, bikora nkibintu byangiritse. Ariko, Polyester akunze gusenyuka kubera igitero cya molekile yamazi, kandi acide yakozwe na hydrolysis irashobora kurushaho gutongana hydrolysis ya polyester.

Kubwibyo, Polyester TPU afite imitungo itangaje, yambara ihohoterwa, irwanya amarira, kurwanya ruswa, no gutunganya ubushyuhe bwinshi, no gutunganya ibintu byoroshye.

4, uburyo bwo kuranga

Nko Tpu aribyiza gukoresha, birashobora kuvugwa gusa ko guhitamo bigomba gushingira kubisabwa kumubiri. Kugirango ugere kumiterere ya mashini, koresha polyester TPU; Niba urebye igiciro, ubucucike, nibidukikije byo gukoresha ibicuruzwa, nko gukora ibicuruzwa byamazi, polyether TPU birakwiriye.

Ariko, mugihe uhisemo, cyangwa kubwimpanuka bivanze nubwoko bubiri bwa Tpus, ntabwo bafite itandukaniro rikomeye mubigaragara. None dukwiye kubitandukanya?

Hariho uburyo bwinshi, nka faraimetry chematry, gaze chromatografi-rusange (gcms), hagati ya infrascopy, nibindi. Ariko, ubu buryo busaba ibisabwa byose bya tekiniki no gufata igihe kirekire.

Hariho uburyo bworoshye bworoshye kandi bwihuse? Igisubizo ni yego, kurugero, uburyo bwo kugereranya ubucucike.

Ubu buryo busaba gusa ikizamini kimwe. Gufata neza reberi ya rubber nkurugero, Intambwe zipima ni:

Shira ibicuruzwa mumameza yo gupima, erekana uburemere bwibicuruzwa, hanyuma ukande Enter Urufunguzo rwo Kwibuka.
Shira ibicuruzwa mumazi kugirango werekane agaciro kwubucucike.
Igikorwa cyose cyo gupima gifata amasegonda 5, hanyuma birashobora gutandukanywa hashingiwe ku ihame rivuga ko ubucucike bwa Polyester Tpu ari hejuru yubwoko bwa PolyEther TPU. Urutonde rwihariye rwihariye ni: Ubwoko PolyEther TPU -1.13-1.18 G / CM3; Polyester TPU -1.18-1.22 G / CM3. Ubu buryo burashobora gutandukanya byihuse ubwoko bwa TPU Polyester nubwoko bwa polyet.