Phapang pakeng tsaTPU Polyotherther Mofuta oa TPUmmeMofuta oa polyester
TPU e ka aroloa ka mefuta e 'meli: mofuta oa polyother le mofuta oa polyester. Ho latela litlhoko tse fapaneng tsa likopo tsa sehlahisoa, mefuta e fapaneng ea TPUS e hloka ho khethoa. Ka mohlala, haeba litlhoko tsa ha ho na thuso ea hydrolysis li phahameng haholo, polyothether mofuta o loketseng ho feta mofuta oa polyester TPU.
Kahoo, ha re bue ka phapang lipakeng tsapolyotherhere mofuta oa tpummeMofuta oa Polyester TPU, le ho ba khetholla? Ba latelang ba tla hlakisa likarolo tse 'ne: Phapang ea lihlahisoa tse tala, liphapang tsa sebopeho, ho bapisoa ha ts'ebetso le mekhoa ea tlhaiso le mekhoa ea tlhaiso le mekhoa ea boits'oaro.
1, Phapang ho Lisebelisoa tse Tala
Ke lumela hore batho ba bangata ba tseba mohopolo oa li-elastomers tsa thermoplastic, tse nang le karolo ea sebopeho sa likarolo tse bonolo le tse thata, ka tatellano, ho tlisa maemo le maemo.
TPU e boetse e na le likarolo tsa likepe tse bonolo le tse thata, le phapano lipakeng tsa polyotherher mofuta oa TPU le mofuta oa polyester TPU. Re ka bona phapang ho tsoa ka lisebelisoa tse tala.
Polyother Share TPU: 4-4 '- Difecynatethane (MDI), Polytetrahydrofuhy, 40% bakeng sa PTMEG, le 20% bakeng sa BDI.
Mofuta oa Polyester TPU: 4-4 '- DiotonylMate (MDI), 1,4-Butaneedio Acid (BDI)
Re khona ho bona hore thepa e tala bakeng sa mofuta oa polythether oa TPU o sootho o soto ke polytetrahydron (ptrig); Lintho tse tala bakeng sa mofuta oa polyester li-adic afdic adoric
2, Phapang ea sebopeho
Chain ea limolek'hule ea TPU e na le sebopeho sa moliko, moo ho nang le boima bo phahameng ba molek'hule (1000-6000)
Ho latela meaho e fapaneng ea a, TPU e ka aroloa ka mofuta oa polyester, mofuta oa polycapropate, jj.
Ho tsoa ho setšoantšo se kaholimo, re ka bona hore majoe a akaretsang a lipalesa tsa polyether a TPU le polyester ka bobeli ke polyoling polyol kapa polyester polyol kapa polyester polyol.
3, ho bapisoa ha ts'ebetso
Polyother Polymer ke li-polymers kapa li-Oligomers tse nang le li-hydroxyl lilaketeng tsa ketane ea limoleke tse kholo. Ka lebaka la matla a eona a hokahanyang a maqhubu a Ether ka sebopeho le boiketlong ba ho potoloha.
Ka hona, polythetherre e na le maemo a mocheso o tlase, a hanyetsanang le khatello ea maikutlo, empa matla a hao a litšila ha a futsanehile.
Lihlopha tsa balebeli tse nang le matla a matla a polyester a ka theha li-hights tsa Fydrogen ka likarolo tse thata tsa liketane, ho sebetsa e le lintlha tse nang le mefuta e mengata ea liketane. Leha ho le joalo, polyester e tloaetse ho anyesa ka lebaka la tlhaselo ea limoleke tsa metsi, 'me acid ona e ntse e etsoa ka hydrolysis e ntse e tla fokotsa hydzelysis ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester ea polyester.
Ka hona, Polyester TPU e na le thepa e ntle ea ho aka, a hanyetsa, likhanyetso, mocheso o phahameng, empa ho hanyetsa habonolo.
4, mokhoa oa boitsebahatso
Joalo ka ha TPU ho molemo ho e sebelisa, e ka boleloa feela hore khetho e lokela ho ipapisitse le litlhoko tsa 'mele tsa sehlahisoa. Ho fihlela thepa e ntle ea ho rera, sebelisa Polyester TPU; Haeba ho nahana ka litšenyehelo, letsoalo le tikoloho ea tšebeliso ea lihlahisoa, joalo ka ho etsa lihlahisoa tsa boithabiso tsa metsi, polyotherre e loketseng haholoanyane.
Leha ho le joalo, ha u khetha, kapa ka phoso o kopanya mefuta e 'meli ea TPUS, ha ba na phapang e kholo. Joale re lokela ho ba khetholla joang?
Ha e le hantle, ho na le mekhoa e mengata, joalo ka mebala ea mebala ea lik'hemik'hale, masenke a li-chromatography (GCMS)
Na ho na le mokhoa o bonolo oa khethollo e bonolo le o potlakileng? Ka mohlala, karabo ke e, mohlala, mokhoa oa papiso o patetso.
Mokhoa ona ho hloka teena e le 'ngoe ea Lebaka la Lebisa. Ho nka karolo e phahameng ea rabara ea rabara e le mohlala, mehato e lekanyang.
Beha sehlahisoa tafoleng ea ho lekanya, bonts'a boima ba sehlahisoa, ebe o tobetsa konopo ea ho kena.
Beha sehlahisoa metsing ho bontša boleng ba letsoalo.
Ts'ebetso eohle ea tekanyo e nka metsotsoana e 5, ebe e ka khetholloa ho latela molao-motheo oa mofuta oa polyester TPU e phahame ho feta ea polyothether sare. Mofuta o ikhethileng oa matla ke: polyotherher thae tpu -13-113-1.18 g / cm3; Polyester TPU -1.18-1.22 g / cm3. Mokhoa ona o ka khetholla ka potlako pakeng tsa mofuta oa TPU Polyester le mofuta oa polyotherther.
Nako ea poso: Jun-03-2024