Isingeniso Esifushane ku-DOP kanye ne-DOTP

Ama-DOP vs DOTP Plasticizers: Uyini Umehluko Omkhulu?

I-DOP ne-DOTP ziyizinto zokwenziwa kwepulasitiki ezisetshenziswa kabanzi ezisetshenziselwa ukwenza PVC ibe mnene, iguquguquke futhi kube lula ukuyicubungula. Umehluko omkhulu isakhiwo sazo sama-molecule: I-DOP, evame ukubhekisela ku-DEHP, iyi-orthophthalate, kuyilapho i-DOTP, ebizwa nangokuthi i-DEHT, iyi-terephthalate futhi ivame ukukhethwa njengenye indlela engeyona i-orthophthalate.

I-DOP ne-DOTP ngokushesha

I-DOP ne-DOTP zinefomula efanayo yama-molecule kanye nesisindo sama-molecule esifanayo, kodwa ziyi-isomers zesimo. Ku-DOP, amaqembu amabili e-ester aseduze kwendandatho ye-aromatic. Ku-DOTP, aphambene. Lo mehluko wesakhiwo uthonya ukuguquguquka, ukufuduka, ukuziphatha kukagesi, ukwelashwa kokulawula kanye nokusebenza kwesikhathi eside ku-flexible PVC .

Inothi lokuqamba: Ezimakethe zezentengiselwano PVC , 'i-DOP' ivame ukusho i-DEHP ene-CAS 117-81-7. Akufanele ididaniswe ne-di-n-octyl phthalate, noma i-DNOP, okuyisithako esihlukile. Abathengi kufanele baqinisekise njalo igama lamakhemikhali kanye nenombolo ye-CAS kudatha yokuphepha impahla yeshidi .

Ama-Plasticizer asebenza kanjani ku- PVC ?

I-Unplasticized PVC iqinile ngokwemvelo. I-plasticizer ingena phakathi kwamaketanga e-polymer PVC futhi inciphise amandla abambe lawo maketanga ndawonye. Amaketanga angabe esehamba kalula, okwehlisa ubulukhuni futhi kwandise ukuguquguquka, ukunwebeka kanye nokucutshungulwa. Umphumela wokugcina uncike ku-resin PVC , ukulayisha kwe-plasticizer, iziqinisi, izigcwalisi, imibala, indlela yokucubungula kanye nezimo zesevisi.

Kuyini i-DOP Plasticizer?

I-DOP yigama lemboni lendabuko le-bis(2-ethylhexyl) phthalate, elifingqiwe ngokunembile i-DEHP. Inomlando omude njenge-plasticizer PVC yenhloso ejwayelekile ngoba inikeza ukuthambisa okusebenzayo, ukuhambisana okubanzi, ukuziphatha okusemisiwe kokucubungula kanye nezindleko zokukhiqiza ezincintisanayo.

Kuye ngemithetho yendawo kanye nencazelo yomkhiqizo oqediwe, i-DOP isetshenziswe kufilimu yezimboni PVC , isikhumba sokwenziwa, izindwangu ezimboziwe, phansi, amapayipi, izivalo, ama-gasket, izingxenye zezicathulo kanye nama-cable compounds akhethiwe. Isimo sayo sokulawula kumele sihlolwe ngokucophelela ngaphambi kokuba sichazwe ngemikhiqizo ehilela ukuchayeka okukhulu kubantu.

Kuyini i-DOTP Plasticizer?

I-DOTP imele i-dioctyl terephthalate futhi yaziwa nangokuthi i-DEHT noma i-bis(2-ethylhexyl) terephthalate. Iwuketshezi olucacile, olunephunga eliphansi olusetshenziswa kakhulu ku PVC eguquguqukayo. Ngenxa yokuthi iyi-terephthalate kunokuba yi-orthophthalate, i-'non-orthophthalate plasticizer' iyincazelo enembile kakhulu kwezobuchwepheshe.

I-DOTP ivame ukuhlolwa njengendlela ehlukile esikhundleni se-DOP lapho umenzi edinga ukuhambisana okuhle PVC kanye nokuguquguquka okuphansi, ukuhlala isikhathi eside okuthuthukisiwe, ukumelana nokufuduka noma ukukhishwa, izakhiwo zikagesi eziwusizo kanye nephrofayili ehlukile yokulawula.

Ukuqhathaniswa Kokusebenza kwe-DOP vs DOTP

Lokhu kuyiziqhathaniso ezijwayelekile embonini, akuzona izindinganiso eziqinisekisiwe. Amazinga ezentengiselwano ayahlukahluka ngobumsulwa kanye nomkhiqizi, kuyilapho ukusebenza kwenhlanganisela eqediwe kushintsha ngohlobo lwe-resin, ukulayishwa kwe-plasticizer, ama-filler, ama-stabilizer kanye nezimo zokuhlola. Sebenzisa idatha yobuchwepheshe yomhlinzeki kanye nezilingo zohlelo lokusebenza ukuze uthole isinqumo sokugcina.

1. Isakhiwo sama-molecule

I-DOP iyi-ortho isomer: amaqembu ayo e-ester ahlala eduze komunye nomunye eringini ye-aromatic. I-DOTP iyi-para isomer: amaqembu abekwe maqondana. Yingakho amakhemikhali amabili anefomula efanayo angaziphatha ngendlela ehlukile ekwakhiweni kwe- PVC futhi aphathwe ngendlela ehlukile yimithetho.

2. Ukusebenza Kahle Nokucubungula Ngepulasitiki

I-DOP yaziwa ngokuthambisa okuphumelelayo kanye nokucubungula okubikezelwayo. I-DOTP ingafinyelela ubulukhuni obufanayo kanye nokusebenza komshini ezinhlotsheni eziningi, kodwa akufanele iphathwe njengokushintsha okuzenzakalelayo komuntu ngamunye. Ukuziphatha kokuhlanganiswa, i-viscosity kanye nokusebenzisana nama-filler noma ama-plasticizer esibili kungashintsha.

3. Ukuguquguquka kanye Nokuhlala Isikhathi Eside

Ukulahleka kwe-plasticizer kungandisa iphunga noma inkungu futhi kungenza PVC eguquguqukayo ibe nzima noma iqine kakhulu ngokuhamba kwesikhathi. I-DOTP ivame ukukhethwa lapho ukuguquguquka okuphansi kanye nokugcinwa kwe-plasticizer okuthuthukisiwe isikhathi eside kubalulekile. Qinisekisa isimangalo ngokuhlolwa kokuguga kokushisa kanye nokunciphisa isisindo okuhambisana nokushisa kwesevisi okuhlosiwe.

4. Ukumelana Nokufuduka Nokukhipha

Ukufuduka kungabangela ukunamathela kobuso, ukudaya, izinkinga zokudlulisa ukuphrinta noma ukulahlekelwa ukuguquguquka. Ukukhipha kungase kwenzeke uma PVC ithinta amanzi, insipho, uwoyela, amafutha noma izinyibilikisi. I-DOTP ivame ukucatshangelwa lapho kudingeka ukumelana okungcono, kodwa izinga lokushisa, isikhathi sokuxhumana, ukuhlushwa kwe-plasticizer kanye nezinto eziseduze konke kuthinta umphumela.

5. Ukusebenza Kokushisa Nokubanda

Zombili izinto zokupholisa zingasekela ukusebenza kwezinga lokushisa okuwusizo ku-flexible PVC . I-DOTP ivame ukuhlolwa lapho ukuguga kokushisa, ukwehlisa isisindo okuphansi kanye nokuguquguquka kwesikhathi eside kuyizinto eziza kuqala. Kumakhaza amakhulu, izinto zokupholisa zingahlanganisa i-plasticizer eyinhloko ne-adipate noma i-sebacate. Ukuze kusetshenziswe ikhebula elishisa kakhulu, i-trimellitate eguquguqukayo ephansi ingafaneleka kakhulu.

6. Ukufakwa Kokushisa Kukagesi

I-DOTP ihlolwa kabanzi ngama-compound PVC e-wire kanye ne-cable aguquguqukayo ngenxa yokuhlanganiswa kwayo kokushisa kukagesi, ukuguquguquka kanye nokuhlala unomphela. I-compound eqediwe kumele isadlule ezidingweni ezifanele zokumelana nomthamo, amandla e-dielectric, ukuguga kokushisa, ukugcinwa kokuthamba, ukugcinwa kokunwebeka kanye nokusebenza komlilo.

7. Izindleko kanye Nenani Eliphelele

Amanani e-plasticizer ahamba ngokwe-feedstock, isifunda, ivolumu ye-oda kanye ne-logistics, ngakho-ke i-premium yentengo ye-DOP-to-DOTP engaguquki ayithembekile. Qhathanisa izindleko zokukhiqiza eziphelele, isivuno sokucubungula, ingozi yokwehluleka, isikhathi sokuphila komkhiqizo, izidingo zokuhlola kanye nokufinyelela emakethe kunentengo ngethani elilodwa kuphela.

Izinhlelo zokusebenza ze-DOP vs DOTP

Ifilimu neshidi eliguquguqukayo PVC

Ama-plasticizer alawula ukuthamba, ukunwebeka, ukukhuthazela kokugoba kanye nokuziphatha kokushisa okuphansi efilimini eguquguqukayo PVC . I-DOP ingasetshenziswa ezisetshenzisweni ezijwayelekile zezimboni ezivunyelwe, kuyilapho i-DOTP ihlolwa ngokwengeziwe kumafilimu adinga ukuhlala isikhathi eside noma ukubekwa kwe-non-orthophthalate okuthuthukisiwe. Izimpahla ze-HSQY Ifilimu ethambile PVC yokuphrinta, phansi, ikhethini, ukusetshenziswa kokuvikela kanye nezimboni.

Izakhi Zezintambo Nezintambo

Abakhiqizi bekhebula baqhathanisa ukumelana nomthamo, ukuguga kokushisa, ukuguquguquka kwezinga lokushisa eliphansi, ukuguquguquka, ukuhambisana okuvimbela ilangabi kanye nokucutshungulwa. I-DOTP iyindlela evamile yamakhemikhali ekhebula aguquguqukayo ajwayelekile, kuyilapho ama-plasticizer akhethekile angadingeka ukuze kulinganiswe amazinga okushisa aphezulu noma ezindaweni ezinzima kakhulu.

Isikhumba Sokwenziwa Nezindwangu Ezimboziwe

Ukukhethwa kwe-plasticizer kuthinta ukujiya kwesembozo, ukuhlangana, ukuzwakala kobuso, ukugqokwa, ukumelana nokubanda, ukufiphala kanye nokuguga. I-DOTP ingahlolwa lapho umenzi edinga ukufuduka okuphansi, ukugcinwa kokuthamba isikhathi eside noma okuqukethwe kwe-orthophthalate okuncishisiwe.

Izimbozo Zaphansi Nezindonga

PVC phansi kudinga ibhalansi yokuhlanganiswa, ukuguquguquka, ukuzinza kobukhulu, ukusebenza kokuguguleka, imigomo yokukhishwa komoya endlini kanye nezindleko. I-DOTP icatshangwa kabanzi ezinhlotsheni zesimanje zephansi, ikakhulukazi lapho kusebenza khona izincazelo ezingezona i-orthophthalate noma izidingo zokuthenga ukukhishwa komoya okuphansi.

Amapayipi, Izivalo, Ama-Gasket kanye nama-Plastisols

Kumapayipi, izivalo, ama-gasket, ama-dip coating, ama-sealant nama-plastisol, ukukhetha kuncike ekuqineni, ekuhlanganiseni, ekucindezelweni, ekufudukeni nasekumelaneni noketshezi oluhlosiwe noma endaweni yokuxhumana. Ukuhlolwa kokukhipha okuthile kohlelo lokusebenza kuthembekile kakhulu kunesimangalo esijwayelekile sokuthi i-plasticizer eyodwa ihlala ingcono.

Okuqinile Ishidi le-PVC

I-Rigid PVC ngokuvamile iqukethe i-plasticizer encane noma ayinayo nhlobo i-primary ngoba ukuqina nokuqina kobukhulu kuyadingeka. i-rigid PVC impahla yeshidi kufanele iqinisekise ukuthi umkhiqizo awuzange ufakwe ipulasitiki, uguqulwe kancane noma wenzelwe ukusetshenziswa okuguquguqukayo.

Indlela Yokukhetha Phakathi Kwe-DOP Ne-DOTP

Ukukhetha okulungile kuncike ekuchazeni umkhiqizo, hhayi igama le-plasticizer kuphela. Sebenzisa umhlahlandlela wesinqumo olandelayo njengesiqalo.

Ngaphambi kokukhetha, chaza okuqondiwe Ukuqina kwe-Shore, izinga le-resin, ukulayisha kwe-plasticizer, indlela yokucubungula, ububanzi besevisi-yokushisa, umkhawulo wokuguga kokushisa, umkhawulo wokufuduka noma wokukhipha, isidingo sikagesi, okuqondiwe kwephunga, isikhathi sokuphila esilindelekile, imakethe yendawo kanye nezindleko zokwakheka eziphelele.

Indlela Yokufaka I-DOP Esikhundleni Se-DOTP Kufomula ye- PVC

I-DOTP ingathatha indawo ye-DOP emikhiqizweni eminingi eguquguqukayo PVC , kodwa ukushintshaniswa kwesilinganiso sokukhiqiza kufanele kulandele isivivinyo esilawulwayo kunokushintshaniswa okucatshangwayo komuntu ngamunye.

1. Chaza isisekelo: bhala phansi umthamo wamanje we-DOP, ubulukhuni be-Shore, amandla okuthamba, ukunwebeka, ukuziphatha kokuhlangana, i-viscosity kanye nefasitela lokucubungula.

2. Yenza isivivinyo selabhorethri: qala eduze kwezinga lamanje le-phr, bese ulungisa ukulayisha kwe-DOTP ukuze ufinyelele ubulukhuni obuqondiwe kanye nezakhiwo zomshini.

3. Hlola ukucutshungulwa: kala ukuziphatha kokuxubana okomile, isikhathi sokuhlanganiswa, i-torque, ingcindezi yokukhipha, impendulo yekhalenda noma i-plastisol viscosity njengoba kufanele.

4. Hlola ukusebenza kokusetshenziswa kokugcina: qhathanisa ukuguga kokushisa, ukwehla kwesisindo, ukuguquguquka kokubanda, ukufuduka, ukukhipha, ukufiphala, ukumelana nogesi kanye nephunga ngokumelene nencazelo yomkhiqizo.

5. Buyekeza ukuhambisana nomthetho: qinisekisa izinga le-DOTP, zonke ezinye izithako kanye ne-athikili eqediwe ngokuhambisana nezidingo zendawo oya kuyo emakethe.

6. Qinisekisa emgqeni wokukhiqiza: qedela ukukhulisa okulawulwayo ngaphambi kokushintsha indlela yokuhweba.

Izinto Ezicatshangelwayo Zokuphepha Nokulawula ze-DOP kanye ne-DOTP

I-DEHP, into evame ukuthengiswa njenge-DOP, ivela ohlwini lwabazongenela ukhetho lwe-European Chemicals Agency kanye nohlu lokugunyazwa ngenxa yobuthi bokuzala kanye nezakhiwo eziphazamisa i-endocrine. Iphinde imbozwe yimikhawulo ezigabeni ezithile zemikhiqizo ye-EU. I-EU RoHS Directive ikhawulela i-DEHP ezintweni ezifanayo ezisetshenziswa emishinini kagesi neye-elekthronikhi, kuye ngobubanzi kanye nokukhululwa.

E-United States, iKhomishini Yokuphepha Komkhiqizo Wabathengi iyakwenqabela amathoyizi ezingane nezinto zokunakekela izingane eziqukethe i-DEHP engaphezu kuka-0.1% engxenyeni yepulasitiki efinyelelekayo. Amanye amazwe nezigaba zomkhiqizo zisebenzisa imikhawulo ehlukene, ukukhululwa, imibhalo kanye nemithetho yokuhlola.

I-DOTP inobunikazi obuhlukile bamakhemikhali kanye nephrofayili yokulawula, kodwa ukusebenzisa i-DOTP akwenzi ngokuzenzakalelayo umkhiqizo oqediwe ube 'uphephile,' ''' 'izinga lokudla,' ''' 'izinga lezokwelapha,' ''uphephile ngamathoyizi,' ''angena-phthalate,' ''ukuthobela i-REACH' noma 'ukuthobela i-RoHS.' Lezo zimangalo zidinga ubufakazi bezinga elithile lezinto ezibonakalayo, iphakheji ephelele yokwengeza, izimo zokuchayeka, into eqediwe kanye nemakethe.

Izinkomba Ezigunyaziwe

• I-PubChem: I-Di(2-ethylhexyl) phthalate (DEHP)

• I-ECHA: I-Bis(2-ethylhexyl) terephthalate (DOTP/DEHT)

• Uhlu Lwabazongenela I-ECHA: I-Bis(2-ethylhexyl) phthalate (DEHP)

• I-EUR-Lex: Isiqondiso Esidluliselwe ku-RoHS (EU) 2015/863

• I-US C PS C: Izidingo ze-Phthalates kanye ne-FAQ

Imibuzo Evame Ukubuzwa Mayelana ne-DOP kanye ne-DOTP

Uyini umehluko phakathi kwe-DOP ne-DOTP?

I-DOP ivame ukuba yi-DEHP, i-orthophthalate plasticizer. I-DOTP yi-DEHT, i-terephthalate plasticizer. I-DOP ibhekwa njengebalulekile ngenxa yokusebenza kahle kwe-plasticization kanye nezindleko ezimisiwe, kuyilapho i-DOTP ivame ukukhethwa ngenxa yokuguquguquka okuphansi, ukuhlala isikhathi eside okuthuthukisiwe, ukumelana nokufuduka, izakhiwo zikagesi kanye nokubekwa kwe-non-orthophthalate.

Ingabe i-DOP ne-DEHP ziyinto efanayo?

Ekusetshenzisweni okuvamile kwezentengiselwano, i-DOP ivame ukubhekisela ku-DEHP, noma i-bis(2-ethylhexyl) phthalate, i-CAS 117-81-7. Ngenxa yokuthi izifinyezo zingase zingahambisani, qinisekisa igama eliphelele lamakhemikhali kanye nenombolo ye-CAS ngaphambi kokuthenga.

Ingabe i-DOTP ne-DEHT ziyi-plasticizer efanayo?

Yebo. I-DOTP kanye ne-DEHT amagama avamile e-bis(2-ethylhexyl) terephthalate, i-CAS 6422-86-2. I-DEHT ikhomba isakhiwo se-2-ethylhexyl terephthalate ngokunembe kakhudlwana.

Ingabe i-DOTP iyi-plasticizer engena-phthalate?

I-DOTP ngokuvamile ikhangiswa njengengeyona i-phthalate ngoba akuyona i-orthophthalate efana ne-DEHP. 'I-plasticizer engeyona i-orthophthalate' iyincazelo enembile kakhulu ngamakhemikhali. Noma yisiphi isimangalo somkhiqizo oqediwe ongena-phthalate kufanele sisekelwe yincazelo echaziwe kanye nendlela yokuhlola.

Ingabe i-DOTP iphephile kune-DOP?

I-DOTP ikhethwa kabanzi njengenye indlela ngoba i-DEHP ingaphansi kwemingcele emikhulu yokulawula. Kodwa-ke, ukuphepha kuncike ebungozini, ekuvezweni, ekuhlanzekeni, emthamo kanye nokusetshenziswa okuhlosiwe. Akukho pulasitiki okufanele ichazwe njengephephile yonke indawo ngaphandle kobufakazi bokusetshenziswa kwayo ngqo.

Ingabe i-DOTP ingayithatha indawo ye-DOP ngqo?

I-DOTP ingathatha indawo ye-DOP ngezindlela eziningi eziguquguqukayo PVC , kodwa ukushintshaniswa komuntu oyedwa kuya komunye akuqinisekisiwe. Isilinganiso, iziqinisi, izigcwalisi, izinga lokushisa lokucubungula kanye nesikhathi sokuhlanganiswa kungadinga ukulungiswa. Qedela izivivinyo zelebhu kanye nokukhiqiza ngaphambi kokushintshaniswa okugcwele.

Ingabe i-DOTP inikeza ukumelana nokushisa okungcono kune-DOP?

I-DOTP ivame ukukhethwa ngenxa yokuguquguquka okuphansi kanye nokusebenza okuthuthukisiwe kokuguga kokushisa, kodwa inhlanganisela ephelele PVC inquma umphumela wokugcina. Qinisekisa ukusebenza ngokuhlolwa kokuguga kokunciphisa isisindo, ukugcinwa kokuqina, ukugcinwa kobude kanye nokuhlolwa kokuguga okuqondene nesicelo.

Ingabe i-DOTP ifanelekile ekufakweni kwentambo kanye nokufakwa kwekhebula?

I-DOTP ivame ukusetshenziswa kuma-compound entambo nekhebula aguquguqukayo PVC ngoba ingahlinzeka ngokuvikela ugesi okuwusizo, ukuguquguquka kanye nokuhlala unomphela. I-compound eqediwe kumele isahlangabezane nezinga lekhebula elidingekayo, isilinganiso sokushisa, ukuhlolwa kukagesi, ukuhlolwa kokuguga kanye nezidingo zomlilo.

Ingabe i-DOTP ifanelekile ekuthinteni ukudla PVC ?

Ukufaneleka akuzenzakaleli. Ibanga elithile le-DOTP kanye ne-athikili eqediwe kumele kuhlangabezane nohlu olufanele, imikhawulo yokwakheka, imikhawulo yokufuduka, izinhlobo zokudla, isikhathi sokuxhumana kanye nezimo zokushisa emakethe yokuya kuyo.

Ingabe i-DOP ingasetshenziswa emikhiqizweni yezokwelapha?

I-DEHP-plasticized PVC inokusetshenziswa kwezokwelapha komlando, kodwa lokho kusetshenziswa kungabandakanya ukuhlolwa kwengozi, ukulebula, ukuvezwa kanye nezidingo zomthetho. I-DOP yenhloso ejwayelekile akufanele neze imakethwe njengebanga lezokwelapha ngaphandle kwemibhalo yezinto eziqondile, idivayisi kanye nemakethe.

Yimaphi amadokhumenti okufanele abathengi bawacele kumhlinzeki we-plasticizer?

Cela igama le-SDS, TDS, COA, amakhemikhali, inombolo ye-CAS, imininingwane yobumsulwa kanye nezimemezelo zomthetho ezifanele. Ukuze uthole ukusetshenziswa okubucayi, cela imibiko yokuhlola umkhiqizo onqunyelwe yinkampani yangaphandle, ukufuduka noma umkhiqizo oqediwe ehambisana nemakethe yendawo oya kuyo.

Isiphetho: Yisiphi i-Plasticizer Okufanele Uyikhethe?

I-DOP kanye ne-DOTP zingenza ipulasitiki ibe yi- PVC eguquguqukayo ngempumelelo, kodwa zixazulula izinto eziza kuqala zokuthenga nokusebenza. I-DOP ingase ihlale isebenza emikhiqizweni yezimboni evunyelwe, ebiza kakhulu. I-DOTP ivame ukuba yisiqalo esinamandla lapho ukuhlala unomphela, ukusebenza kukagesi, ukumelana nokufuduka, impilo yesevisi noma ukucaciswa okungeyona i-orthophthalate kubalulekile.

Ukukhetha okungcono kuncike ebulukhunini benhloso, inqubo, izinga lokushisa lesevisi, indawo yokukhipha, impilo yonke, imakethe yendawo kanye nokuhlolwa okudingekayo. Buyekeza amadokhumenti obuchwepheshe bese uqinisekisa inhlanganisela ephelele PVC ngaphambi kokukhiqizwa kwezentengiselwano.

Ukuze uthole usizo lokukhetha ifilimu engu PVC impahla yeshidi noma eguquguqukayo engu PVC , xhumana ne-HSQY Plastic ngohlobo lomkhiqizo wakho, ukujiya, ubukhulu, ukuguquguquka, indlela yokucubungula, izinga lokushisa lesevisi, imakethe yendawo kanye nezidingo zokuthobela imithetho.