Thatha amanyathelo ngoku nge-DDI (Dimeryl Diisocyanate) CAS NO. 68239-06-5 kwi-polyurethanes ezingangeni manzi
Uhlala ubona ukuba ubuthathaka bamanzi bubangela iingxaki kwiingubo ze-polyurethane. Iimveliso ezininzi zibonisa ii-engile zokunxibelelana kwamanzi ezisezantsi, njengentsimbi engatyiwayo kwi-76.3°, i-polyurethane yolawulo kwi-95.2°, kunye nezinye iingubo ze-polyurethane ezilwa neentsholongwane ezingaphantsi kwe-83°. I-DDI (i-Dimeryl Diisocyanate) I-CAS NO. 68239-06-5 isusa ezi ngxaki. Ulwakhiwo lwayo olukhethekileyo lukuvumela ukuba wenze iimveliso ze-polyurethane ezingangeni manzi nezihlala ixesha elide.
Izinto ezibalulekileyo ekufuneka ziqwalaselwe
- I-DDI (i-Dimeryl Diisocyanate) idala ii-polyurethane ezingangeni manzi ezimelana nokufuma, ziqinisekisa ukuqina kunye nobude bexesha kwiindlela ezahlukeneyo zokusebenza.
- Ukusebenzisa HAYI iphucula ukusebenza kweemveliso ze-polyurethane ngokunciphisa iingxaki ezifana nokudumba kwamadyungudyungu kunye nokungaphumeleli kokuthintela amanzi, nto leyo ekhokelela kwiziphumo ezithembekileyo.
- Ukudibanisa HAYI Kulula ukuyifaka kwifomyula yakho: khetha i-polyol efanelekileyo, uyixube phantsi kweemeko ezilawulwayo, kwaye uvavanye ukumelana namanzi ukuze ufumane ukusebenza okufanelekileyo.
Uvakalelo lwamanzi kwiPolyurethanes
Inkcazo kunye neMpembelelo
Uvakalelo lwamanzi luchaphazela indlela ezisebenza ngayo iimveliso ze-polyurethane kwaye zihlala ixesha elide ngayo. Xa usebenzisa i-polyurethane kwiingubo okanye kwiisealants, ukufuma kunokubangela iingxaki ezininzi. Ungabona ukudumba, ukungasebenzi kakuhle kokuthintela amanzi, okanye ukonakala kwezinto. Isikhunta singakhula ukuba amanzi avuza kwizinto. Itheyibhile engasezantsi ibonisa impembelelo ephambili yovakalelo lwamanzi kwiimveliso ze-polyurethane:
| Uhlobo lweMpembelelo | Inkcazo |
|---|---|
| Ubuthathaka bokufuma | Iimveliso zePolyurethane zinobuthathaka kakhulu kumswakama, nto leyo echaphazela ukusebenza kwazo kunye nobomi bazo. |
| Ukudumba | Umaleko we-PU unokuba namadyungudyungu ukuba awunamathelanga kakuhle kwi-substrate. |
| Ukungaphumeleli kokuthintela amanzi | Ukusetyenziswa ngendlela engafanelekanga kunokukhokelela ekungangeni kwamanzi kwinkqubo yokuthintela ukungenwa kwamanzi, nto leyo ebangela ukuvuza kwamanzi. |
| Ukuwohloka kwezinto | Ukuvuza kwamanzi kunokubangela ukukhula kwesikhunta kunye nokuwohloka kwezinto. |
Kufuneka ujongane nale micimbi ukuze iimveliso zakho ze-polyurethane zithembeke kwaye zihlale ixesha elide.
Imingeni kwiinkqubo zeSintu ze-Isocyanate zeMveli
Iinkqubo ze-isocyanate zemveli zijongene nemingeni emininzi xa zichatshazelwe kukufuma. Uhlala ujongene neempendulo ezingafunekiyo ezinciphisa umgangatho we-polyurethane yakho. Nazi ezinye zeengxaki eziqhelekileyo:
- Ii-Isocyanates zisabela ngokukhawuleza xa zidibene nokufuma, nto leyo enokubangela ukuqhuma kwegwebu kunye nokwanda koxinzelelo.
- Le mpendulo yenza i-ureas kunye ne-carbon dioxide, nto leyo ephelisa i-isocyanate ekhoyo.
- Ezi ngxaki zenza kube nzima ukulawula iimpawu zokugqibela zemveliso yakho.
Ungoyisa le mingeni ngokukhetha izisombululo eziphambili ezifana I-DDI (i-Dimeryl Diisocyanate) INOMBOLO YE-CAS. 68239-06-5. Olu khetho lukunceda wenze ii-polyurethane ezingangeni manzi ezimelana nokufuma kwaye zihlala ixesha elide.
I-DDI (i-Dimeryl Diisocyanate) INOMBOLO YE-CAS. 68239-06-5: Isisombululo sePolyurethanes ezingangeni manzi
Iimpawu zeKhemikhali eziZodwa ze HAYI
Ufuna iimveliso zakho ze-polyurethane zihlale ziqinile, nokuba zimanzi. I-DDI (Dimeryl Diisocyanate) CAS NO. 68239-06-5 ihlukile ngenxa yesakhiwo sayo esikhethekileyo seekhemikhali. Le khompawundi inomqolo omde we-36-carbon, owunika ukuguquguquka namandla. I-viscosity ephantsi yenza kube lula kuwe ukuyixuba nokuyiphatha. I-DDI ikwabonisa ubuthi obuphantsi, ngoko ungayisebenzisa ngokukhuselekileyo kwiindawo ezininzi.
Masithelekise i-DDI nezinye ii-isocyanates eziqhelekileyo ezisetyenziswa kwimveliso ye-polyurethane. Itheyibhile engezantsi ibonisa indlela ubunzima be-molecular ye-DDI, umxholo we-NCO, kunye nobuthi obahluke ngayo kwezinye iindlela:
| Inkcazo | Ubunzima bemolekyuli obuhambelanayo | Umxholo we-NCO, % | I-chlorine enokutsalwa ngamanzi, % | Uxinzelelo lomphunga, mmHg | Indawo yokunyibilika, ℃ | Ubuthi |
|---|---|---|---|---|---|---|
| HAYI | 600 | 13.6 ~ 15.2 | 0.05 | ＜0.001 (25℃) | -34.4 | ubuthi obuphantsi |
| I-IPDI | 222.2 | 37.8 | 0.02 | 0.003 (20℃) | -60 | ubuthi obuphakathi |
| I-TDI | 174 | 48.3 | 0.01 | 0.042 (20℃) | 5 ~ 6.5 | ubuthi obukhulu |
| I-MDI | 250.26 | 33.6 | 0.05 | - | 38 | ubuthi obuphakathi |
Ungabona ukuba i-DDI (Dimeryl Diisocyanate) CAS NO. 68239-06-5 inobunzima obukhulu kakhulu bemolekyuli kwaye inetyhefu ephantsi kunezinye ii-isocyanates. Oku kuthetha ukuba ufumana imveliso ekhuselekileyo nezinzileyo.
Indlela Yokuphendula Xa Ithelekiswa Nezinye Ii-Isocyanates
Xa usebenzisa i-DDI, ufumana indlela eyahlukileyo yokusabela xa kuthelekiswa ne-isocyanates zemveli. I-DDI isabela kunye ne-polyols ukwenza iibhondi ze-urethane ezinamandla. Ikhonkco elide lekhabhoni kwi-DDI linceda ekudaleni inethiwekhi eguquguqukayo. Le nethiwekhi iyamelana nokuqhekeka xa ivezwa emanzini okanye kuxinzelelo.
Ezinye ii-isocyanates, ezifana ne-TDI okanye i-MDI, zisabela ngokukhawuleza ngamanzi. Oku kunokubangela ugwebu kunye namabala abuthathaka kwi-polyurethane yakho. Ulwakhiwo lwe-DDI lucothisa ukusabela okungafunekiyo ngokufuma. Ufumana ulawulo olungcono kwinkqubo yokunyanga. Imveliso yakho yokugqibela ihlala ithambile kwaye inamandla, nokuba kukho ukufuma okuthile ngexesha lokusetyenziswa.
Icebiso: Ukusebenzisa i-DDI kukunceda uphephe iingxaki eziqhelekileyo ezifana namaqamza okanye imingxunya kwiingubo zakho ze-polyurethane.
Iziphumo Zokusebenza Phantsi Kokuchatshazelwa Ngamanzi
Ufuna iimveliso zakho ze-polyurethane zisebenze kakuhle, nokuba zikwindawo emanzi okanye efumileyo. Ii-polyurethane ezisekwe kwi-DDI zibonisa iziphumo ezigqwesileyo xa zichatshazelwa ngamanzi ixesha elide. Ziyamelana ne-hydrolysis, oko kuthetha ukuba amanzi awawohloki lula loo nto. Oku kukhokelela kubomi benkonzo ende kwiimveliso zakho.
Nantsi isishwankathelo sendlela ii-polyurethanes ezisekelwe kwi-DDI ezisebenza ngayo xa zichatshazelwa ngamanzi:
| Uphawu | Inkcazo |
|---|---|
| Uzinzo lwe-Hydrolytic | Iipolyurethane ezisekwe kwi-DDI ziyamelana namanzi kunye nokufuma |
| Ulwandiso lobomi benkonzo | Zandisa ubomi benkonzo kwiindawo ezimanzi okanye ezivezwe |
Ungamthemba i-DDI (Dimeryl Diisocyanate) CAS NO. 68239-06-5 ukuze ugcine iimveliso zakho ze-polyurethane zingangeni manzi kwaye zithembekile. Oku kwenza ukuba ibe lukhetho olufanelekileyo kwiingubo, izitywini, kunye nezinye izinto apho ukufuma kuyinto exhalabisayo.
Iingenelo kunye nokuphunyezwa kwe I-DDI (i-Dimeryl Diisocyanate) INOMBOLO YE-CAS. 68239-06-5
Ukuqina Okuphuculweyo kunye Nokuphila Ixesha Elide
Ufuna iimveliso ze-polyurethane ezihlala ixesha elide. Xa usebenzisa i-DDI (Dimeryl Diisocyanate) CAS NO. 68239-06-5, ufumana izinto zokugquma kunye nezitywina ezimelana namanzi kwaye zihlala ziqinile. Ii-Polyurethanes ezine-DDI zibonisa ukwehla okuncinci kwe-viscosity kunye nokuveliswa kwexabiso le-asidi ephantsi emva kokuvezwa kumswakama ophezulu kunye nobushushu. Oku kuthetha ukuba iimveliso zakho zigcina imo yazo kunye nokusebenza kwazo ixesha elide. Kwakhona ubona ukutyheli okuncinci, ngoko izinto zokugquma zakho zibukeka zintsha nangona emva kokuvezwa yi-UV.
Ukuguquguquka kwesicelo kumashishini onke
Ungasebenzisa i-DDI kumashishini amaninzi. Isebenza kakuhle ekugqityweni kwelaphu, kwiiglu, kwii-elastomers, kwii-sealants, kwii-coating, nakwii-inki. Ufumana i-DDI kwizicelo zomkhosi nezoluntu. Ikunceda wenze amalaphu angangeni manzi, kwii-coating eziqinileyo zomthi nezesinyithi, nakwii-elastomers eziguquguqukayo. Ufumana iziphumo ezithembekileyo nokuba usebenza ekwakheni, kwiilaphu, okanye kwiimoto.
Iingenelo zeendleko kunye nokusebenza kakuhle
Uyabona ukuba i-DDI inobuhlobo nokusingqongileyo kwaye iya ithandwa ngakumbi. Iindleko ze-DDI ziye zehla, kodwa ii-diisocyanates ezisekelwe kwi-bio ezifana ne-DDI zisenokuba nexabiso eliphantsi kuneendlela zemveli. Uhlawula ngakumbi kwangaphambili, kodwa ufumana iingenelo zokusebenza. Iipolyurethanes ezine-DDI ziyamelana nokubola kunye nokutyheli, ngoko uchitha imali encinci ekulungiseni nasekutshintsheni.
- I-DDI inika ukumelana okuphuculweyo kwamanzi.
- Ufumana ukuqina okungcono kunye nozinzo lombala.
- Uxhasa ikhemistri eluhlaza kwiimveliso zakho.
Amanyathelo Okudibanisa HAYI kwiifomyula zePolyurethane
Ungongeza i-DDI kwifomyula yakho ye-polyurethane ngamanyathelo ambalwa alula:
- Khetha i-polyol efanelekileyo kwisicelo sakho.
- Xuba i-DDI ne-polyol yakho phantsi kweemeko ezilawulwayo.
- Lungisa umlinganiselo ukuze ufumane ukuguquguquka namandla afunekayo.
- Nyanga umxube kubushushu obucetyiswayo.
- Vavanya imveliso yokugqibela ukuze ubone ukuba ayingeni manzi kwaye ihlala ixesha elide.
Icebiso: Landela izikhokelo zokhuseleko rhoqo xa usebenzisa ii-isocyanates.
Ungamthemba I-DDI (i-Dimeryl Diisocyanate) I-CAS NO. 68239-06-5 yeemveliso ze-polyurethane ezingangeni manzi nezihlala ixesha elide. Amashishini amaninzi ngoku akhetha esi sisombululo ngenxa yokhuseleko lwaso, imveliso ezinzileyo, kunye nexabiso elikhulayo lemarike.
- Ixabiso lemarike lenyuke ukusuka kwi-120 yezigidi zeerandi ukuya kwi-450 yezigidi zeerandi kwiminyaka emibini.
- Imithetho yehlabathi iqinisekisa ukusetyenziswa ngokukhuselekileyo nangokufanelekileyo.
| Inzuzo | Inkcazo |
|---|---|
| Ukunciphisa Ukuguquguquka | Umphunga omncinci, indawo yokusebenza ekhuselekileyo |
| Imveliso Ezinzileyo | Iziphumo ezithembekileyo kubavelisi |
FAQ
Yintoni eyenza I-DDI (i-Dimeryl Diisocyanate) ikhethekileyo kwiipolyurethane ezingangeni manzi?
Ufumana umqolo we-36-carbon. Oku kunika i-polyurethane yakho ukumelana namanzi okuqinileyo, ukuguquguquka, kunye nokungabi natyhefu.
Ungayisebenzisa HAYI kumashishini ahlukeneyo?
- Ungasebenzisa i-DDI kwimpahla, kwiingubo, kwiiglu, kwiisealants, nakwii-inki.
- I-DDI isebenza kwiimveliso zomkhosi kunye nezoluntu.