Ibikoresho bya Polyurethane bivangwa n'amazi byakozwe binyuze muri Theoremchem Dimeryl Diisocyanate DDI

Ibintu by'ingenzi byakunzwe

• Theoremchem DDI ikoresha urunigi rurerure rwa karuboni kugira ngo ibuze amazi kandi irinde polyurethane kwangirika kw'ubushuhe.
• Ibikoresho bishingiye kuri DDI biguma byoroshye mu gihe cy'ubukonje kandi birwanya umuhondo uterwa no kwibasirwa n'izuba.
• Imashini zikora formula zikoresha DDI kugira ngo zirambe irangi ritagira amazi, ibintu bifunga ibintu byo mu mazi, n'uburyo bwo kurinda ibikoresho by'ikoranabuhanga.

Imiterere y'ibinyabutabire n'uburyo bwo gufunga amazi bwa DDI

Theoremchem Dimeryl Diisocyanate (DDI) ihindura imiterere isanzwe ya polyurethane mo polymeri zirinda amazi. Imiterere yayo yihariye y’ibinyabutabire ihuza imiterere ya aliphatic n’imiterere ikomeye ya hydrocarbon. Iyi miterere ikora uburinzi burambye bwo kwirinda kwinjira mu mazi ku rwego rwa molekile.

Umugongo w'aside y'ibinure itari iy'izuba C36 Dimer

Ibanga nyamukuru riri inyuma y’ubudahangarwa bw’amazi bwa Theoremchem DDI riri mu miterere yayo y’ibanze. Diisocyanates gakondo nka MDI cyangwa TDI zirimo iminyururu migufi ya karuboni cyangwa impeta zihumura. Mu buryo bunyuranye, DDI ifite uruti rurerure rwa aside fatty ya C36 dimer.

Isocyanati zisanzwe (Urunigi rugufi) ---> Theoremchem DDI (C36 Dimer Backbone) ---> Uburinzi bukomeye bwo gukingira amazi 

Uyu muyoboro wa karuboni 36 ntabwo uri mu gice cy’izuba. Imiterere ya shimi itari mu gice cy’izuba ntikora imiyoboro ya hydrogen hamwe na molekile z’amazi. Ahubwo, imiyoboro miremire ya alkyl isunika molekile z’amazi kure y’urusobe rwa polymer. Ubucucike bwinshi bwa atome za karuboni na hydrogen butuma habaho uruzitiro rudacogora mu mazi mu gice cy’izuba.

Ingingo z'ingenzi zo gufata: Umugongo wa aside irike ya C36 dimer ukora nk'urwego rw'imbere rwa lipide muri polyurethane matrix. Irinda amazi y'amazi kandi ikagabanya ikwirakwira ry'ubushuhe mu bikoresho.

Ishusho ya Aliphatic n'Ingufu nke zo hejuru

Theoremchem DDI ifite imiterere ya aliphatic yuzuye. Ibinyabutabire bya aliphatic bitagira impeta zihumura neza, ibyo bikarinda ubwiyongere bw'izuba no guhinduka umuhondo. Byongeye kandi, iyi miterere ya aliphatic C36 igabanya cyane ingufu zo hejuru za polyurethane zikozwe mu buryo bwa synthetic.

Ibikoresho bifite ingufu nke zo hejuru bitera imbaraga z'amazi ku buryo bikwirakwira aho gukwirakwira. Polyurethane zishingiye kuri DDI zigaragaza inguni nyinshi zihuza amazi.

Ingufu nke zo ku buso zirinda amazi y'amazi kunyobwa ku buso bwa polymer. Amatonyanga y'imvura n'umwuka uhindagurika bisohoka mu bikoresho nta ngorane. Ubu buryo butanga uburinzi bw'igihe kirekire ku bintu byoroshye biri munsi y'igitambaro cyangwa agafunga.

Inzitizi ya Steric ku Gucikamo Igisebe cya Hydrolytic

Amazi yangiza polyurethane isanzwe yibasira imiyoboro ya ester na urethane. Iyi nzira yo gusenya imiti yitwa hydrolysis. Theoremchem DDI ibuza hydrolysis binyuze mu buryo buzwi nka steric inzitizi.

Imiyoboro miremire ya C36 dimer ikora igice kinini cy’ahantu hakikije imiyoboro y’ibinyabutabire ishobora kwangirika. Izi ntwaro nini za hydrocarbon zibuza molekile z’amazi (H_2O$) kugera ku miyoboro ya urethane.

• Amatsinda ya C36 menshi akurikirana umwanya wa molekile ukikije amatsinda ya ester na urethane.
• Molekile z'amazi ntizishobora kugera ku mibanire y'ibinyabutabire kugira ngo zitere gucika kw'imigozi.
• Urusobe rwa polymeri rugumana imbaraga zarwo zo gukurura no guhindagurika uko igihe kigenda gihita.

Ubushakashatsi ku ikoreshwa rya DDI (Dimeryl Diisocyanate) bwerekana ko amatsinda manini ya aliphatic abuza molekile z'amazi kugera ahantu hashobora kwangirika. Kubera iyo mpamvu, polyurethanes zikozwe muri Theoremchem DDI zikomeza kwibasirwa n'ibidukikije bishyushye, bitose, n'ibiri munsi y'amazi nta kwangirika kw'imiterere yazo.

Ibyiza by'imikorere ya Polyurethanes zishingiye kuri DDI

Theoremchem Dimeryl Diisocyanate (DDI) itanga imiterere idasanzwe y’ibikoresho bya polyurethane ku buryo bufatika n’ubutabire. Imashini zikora ibikoresho by’inganda zigira inyungu zidasanzwe mu mikorere yazo iyo zisimbuye isocyanate gakondo na DDI. Urunigi rurerure rwa aliphatic rwa C36 rutanga uburyo bwiza bwo kuringaniza hagati yo gukomera kwa mekanike no kwihanganira ibidukikije.

Ubudahangarwa bw'amazi meza n'ubudasaza burambye

Molekile z'amazi zitera kwangirika gukabije k'uruhererekane rwa polymer mu gihe kirekire. Theoremchem DDI ikemura iki kibazo ikingira imigozi ya urethane iterwa n'amazi.

Incamake y'ingenzi: Imiti ikoresha DDI igumana imbaraga zayo zo gukurura kugeza kuri 95% nyuma yo gupimwa igihe kirekire mu mazi, mu gihe polyurethane isanzwe ishingiye kuri TDI irushaho kwangirika.

Ubushakashatsi ku ishyirwa mu bikorwa rya DDI (Dimeryl Diisocyanate igaragaza ubushobozi bwayo bwo kubungabunga imiterere ya mekanike nyuma yo guhura n'ubushuhe n'ubushyuhe igihe kirekire. Uruti rw'umugongo runini rwa C36 rudakoresha amazi rubuza ubushuhe kugera aho bugera. Kubera iyo mpamvu, polymeri zirinda gucika, koroha, no gucika intege mu gihe cy'imyaka myinshi.

Kunywa amazi make no kwemerera umwuka uhumeka

Urusobe rwa polyurethane rurimo DDI rugaragaza amazi make cyane anyura mu mazi. Uduce twinshi twa hydrophobic dutuma habaho uruzitiro rukomeye imbere muri elastomer ifatanye.

• Kunywa amazi make cyane: Elastome zishingiye kuri DDI zinyunyuza amazi ari munsi ya 0.5% ukurikije uburemere nyuma y'amasaha 24 yo kwibira mu mazi yuzuye.
• Inzitizi yo Kurekura Umwotsi: Urusobe rw'amazi rubuza ikwirakwizwa ry'umwuka w'ubushuhe binyuze mu mafirime yoroheje ya polymer.
• Kurinda ingese: Kugabanuka k'ubushyuhe bw'umwuka birinda ibintu biri munsi y'icyuma kwangirika no kwangirika kw'ibikomoka ku ruhu.

Ubu bushyuhe buke burinda uduheri no gutakaza ubushobozi bwo gufatana mu bitwikirizo bihura n'ubushuhe bwinshi cyangwa ikirere kiri munsi y'amazi.

Kongera ubushobozi bwo koroshya no gukora neza mu bushyuhe buke

Theoremchem DDI ifite imiterere miremire ya aliphatic dimer. Iyi chain yoroshye igabanya cyane ubushyuhe bw'impinduka z'ikirahure ($T_g$) by'ibice byoroshye mu miterere ya polyurethane.

Umuyoboro Muremure wa Aliphatic Dimer ---> Tg yo Hasi ---> Umuyoboro Muremure Ugenda ku Bushyuhe Buto bwa Zeru 

DDI itanga uburyo bwo kugenda kw'imiyoboro miremire no gushyira pulasitiki imbere mu mubiri bidasaba inyongeramusaruro zihindagurika. Imbonerahamwe iri hepfo isobanura uburyo bwo kunoza imikorere bwagezweho hakoreshejwe sisitemu za DDI:

Imashini zikora ibikoresho bya formulaire zigira ubudahangarwa bukomeye mu miterere yazo mu madirishya menshi y'ubushyuhe.

• Kurekura mu gihe cyo kuruhuka: Imiterere ya molekile ya DDI ifite uruhererekane rurerure itanga uburyo bwo kugenda no gukomera kw'uruhererekane, ikarinda gucikagurika mu gihe cyo kugongana gukomeye cyangwa ingaruka.
• Ubushyuhe Buke: DDI igabanya ubushyuhe bw'impinduka mu kirahuri ($T_g$) by'uduce tworoshye twa polyurethane, bigatuma elastomer igumana ubushyuhe bwinshi ubworoherane mu bushyuhe buri hasi nta kubabara kubera kubabara.

Ubudahangarwa bwiza cyane bwa shimi n'imiraba y'urumuri

Isocyanati za Aliphatic zitanga ubudahangarwa bw’izuba n’ibinyabutabire bikaze. Bitandukanye n’ibintu bihumura neza, DDI ntigira imikoranire ibiri ya karuboni na karuboni ifata urumuri rw’izuba.

Irangi rishingiye kuri DDI rihangana n'urumuri rwa ultraviolet rudahinduka umuhondo, ingwa, cyangwa uduce duto two hejuru. Byongeye kandi, umugongo wa hydrocarbon utari mu isanzure urwanya aside, alkali, n'umunyu, bigatuma imiterere yawo ikomeza kuba myiza mu nganda zikomeye.

Amabwiriza yo Gutunganya no Gutunganya Ibikoresho Bituma Haba Indwara Iterwa n'Amazi Irushaho Kuba Ifite Ubwiza

Imashini zitunganya amazi zigomba gukurikiza ibipimo nyabyo byo gutunganya amazi kugira ngo zirusheho kugira ubushobozi bwo kwirinda amazi Inyigisho DDIKugereranya imiti mu buryo bw’ingamba no guhitamo ibice byayo bitanga umusaruro uhagije kandi ubucucike bw’imiyoboro buhanitse.

Kugereranya imiterere ya Stoichiometric na NCO/OH Ratio Optimization

Kugira ngo umuntu agere ku rwego rwo hejuru rwo kudakoresha amazi bisaba kugenzura neza igipimo cya stoichiometric. Abakora formulateurs bakunze kugira igipimo cya NCO/OH kiri hagati ya 1.03 na 1.08.

• Amatsinda ya isocyanate arenze urugero asubiza ubushuhe bw'ikirere mu gihe cyo gutunganya.
• Uburyo bwuzuye bwo gukora amatsinda ya hydroxyl burinda ahantu hadakora neza mu gice cy’amatsinda.
• Ubucucike bwinshi bwo guhuza butuma habaho imiterere ya polymer ikomeye irwanya kwinjira mu mazi.

Igipimo cya stoichiometric gihuje neza gitanga ubushobozi bwo gukora urusobe rw'imiyoboro ya polymeri rwose. Bityo, polyurethane yavuwe ibuza amazi kandi igakomeza kugira imiterere ihamye.

Guhitamo Polyol kugira ngo habeho ubwiyongere bw'amazi mu buryo buhuriweho

Guhitamo polyol bigira ingaruka zitaziguye ku ngufu za nyuma z'ubuso bwa polyurethane elastomer. Guhuza Theoremchem DDI na polyols ziterwa n'amazi bitanga imbaraga zikomeye zo kurwanya amazi.

Inama ku bijyanye n'uburyo bwo gukora: Guhuza DDI na polyol zitari polar nka polybutadiene ivanyweho na hydroxyl (HTPB) itanga polyurethane ifite amazi make cyane.

Ubushakashatsi ku ikoreshwa rya DDI (Dimeryl Diisocyanate) bwerekana ko guhuza DDI na polyol zishingiye kuri dimer aside byongera ubushobozi bwo guhindagurika kwa hydrolytic. Ibi bice byoroshye bitari polar bikora hamwe n'umugongo wa C36, bigafunga neza matrix ya polymer ku buryo idakwirakwira mu mazi.

Ubushyuhe n'uburyo bwo guhitamo imashini zikoresha ingufu

Uburyo bworoshye bwo gukora Theoremchem DDI butuma byoroha kugenzura uburyo ibintu bigenda bihinduka. Abahanga mu bya shimi bagumana ubushyuhe buri hagati ya 70°C na 90°C mu gihe cyo gutegura prepolymer.

Imiterere y'ubushyuhe igenzurwa irinda ingaruka mbi kandi ikarinda imiterere y'uruhererekane rwa polymeri idafite aho ihuriye n'amazi.

Ubushakashatsi ku ikoreshwa rya DDI (Dimeryl Diisocyanate)

Imashini zikora ibikoresho by’inganda zihuza Theoremchem Dimeryl Diisocyanate mu buryo bwihariye bwa polymer. Ingirabuzimafatizo yihariye ya C36 hydrophobic ituma habaho uburinzi buhanitse mu nzego za tekiniki zisaba imbaraga nyinshi.

Udupira two gukingira amazi n'udusimba turinda amazi

Abakora formulari bakoresha Theoremchem DDI kugira ngo bubake irangi rito ridashobora kuvogerwa n'amazi. Umunyururu wa C36 utari polari urinda sima, imbaho ​​n'icyuma mu buryo bunyuramo amazi. Ubushakashatsi ku ishyirwa mu bikorwa rya DDI (Dimeryl Diisocyanate igaragaza ubushobozi bworoshye bwo koroshya filime no gushyiramo uduce duto mu gihe cy’imvura ihindagurika.

Ibifunga byo mu mazi n'ibifunga biri munsi y'amazi

Ibidukikije byo mu mazi bisaba ko ibintu bihora birwanya umunyu no kwibira mu mazi. Polyurethane zishingiye kuri DDI zitanga imbaraga zikomeye zo gufata ku buso butose zidakoreshejwe imiti.

Abahanga mu by’ubwubatsi bagena ibi bifunga biramba ku mato, aho ubwato buhurira, n’aho imiyoboro y’amazi ihurira.

Ibikoresho byo mu bwoko bwa elegitoroniki byo gukaraba no gukaraba

Ibice by'amashanyarazi byoroshye bikenera uburinzi bwizewe ku bushuhe bw'ikirere ndetse no kwangirika kw'ibinyabutabire. Ibinyabutabire bya polyurethane bikozwe muri DDI bikura microcircuits zoroshye.

Akamaro k'ingenzi: Ibinyabutabire bya DDI bigumana ubushyuhe bwiza bwa dielectric n'ubushyuhe bw'amazi buke cyane, bikingira ikoranabuhanga ryoroshye kuri electron circuits z'amashanyarazi.

Imyambaro iterwa n'amazi n'uruhu zikozwe mu nganda

Abakora imyenda bakoresha emulsions za DDI mu mazi kugira ngo barangize imyenda ya tekiniki igezweho n'uruhu rw'ubukorano. Ubu buryo bwihariye bwo kuvura butuma imyenda ihora yoroshye kandi yoroshye kuyikoresha. Ubushakashatsi ku bijyanye n'ikoreshwa rya DDI (Dimeryl Diisocyanate) bwerekana ko imyenda yavuwe ihora imeswa inshuro nyinshi idatakaza imiterere yayo yo ku buso budashobora gutakaza imiterere yayo yo ku buso budashobora gutakaza amazi.

---

Inyigisho Dimeryl Diisocyanate (DDI) itanga umuti w’imiti ukoreshwa cyane kuri polyurethanes ukeneye ubudahangarwa bw’amazi n’ubudahangarwa bw’imashini. Gushyiramo umugongo wa C36 utari mu gice cy’inyuma birinda ibibazo by’imiterere mu bidukikije bikonje, mu mazi no mu by’ikoranabuhanga. Imashini zikora byoroshye irangi riramba, zifunga, na elastomer kandi ziramba. Ubushakashatsi ku ikoreshwa rya DDI (Dimeryl Diisocyanate bwerekana inyungu z’ingenzi z’ikirere kibi:

Ibibazo Bikunze Kubazwa

Ni gute Theoremchem DDI yongera ubushobozi bwo kwirinda amazi ya polyurethane?

Ishusho ya DDI ifite umugongo muremure wa hydrocarbon wa C36 utari mu gice cy'izuba. Iyi miterere y'amazi ibuza molekile z'amazi kandi ikarinda imiyoboro y'ibinyabutabire ishobora kwangirika.

Ese abakora formulateur bashobora gukoresha Theoremchem DDI mu bikorwa byo hanze?

Yego. Imiterere ya aliphatic ya Theoremchem DDI irinda foto-oxidation no guhinduka umuhondo munsi y'izuba. Ibikoresho bigumana ubwiza bwinshi, ubushobozi bwo koroshya ibintu, kandi bigakomeza kwihanganira ikirere uko igihe kigenda gihita.

Ni izihe polyols zihuza neza na Theoremchem DDI?

Polyol zitari polar nka polybutadiene ivanyweho na hydroxyl (HTPB) Bihuye neza cyane na Theoremchem DDI. Iyi mvange itanga polyurethane ifite ubushobozi bwo kwinjiza amazi make cyane kandi ikagira ubushobozi bwo koroha cyane.