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Tšebeliso ea dimethyl thio-toluene diamine ke efe?

Ka keketseho e tsoelang pele ea tlhoko ea li-additives tse sebetsang hantle, tse sireletsang tikoloho le tse sebetsang hantle indastering e mecha ea thepa e kang polyurethane le epoxy resin,dimethyl thio-toluene diamine(DMTDA, nomoro ea CAS: 106264-79-3) butle-butle e fetohile matla a mantlha a ho ntlafatsa indasteri ka lebaka la litšobotsi tsa eona tse ikhethang tsa sehlahisoa le maemo a mangata a ts'ebeliso. Jwalo ka mofuta o mocha oa sesebelisoa sa ho phekola sa aromatic diamine le extender ea ketane, DMTDA e ntse e nkela li-agent tsa setso tse tiileng sebaka butle-butle. Dimethyl thio-toluene diamine e sebelisitsoe ka tekanyo e kholo masimong a mangata a kang likoloi, kaho, ketane e batang le e thibelang mafome, e leng se khothalletsang indasteri ho fetoha ho ea nts'etsopele ea khabone e tlase, e sebetsang hantle haholo le ea maemo a holimo.

dimethyl-thio-toluene-diamine

Litšobotsi tsa dimethyl thio-toluene diamine (DMTDA)

Melemo ea mantlha eaDimethyl thio-toluene diamine (DMTDA)e simolohile thepeng ea eona ea 'mele ea ho ba boemong ba metsi mochesong oa kamore le ts'ebetso ea eona e ntle ea lik'hemik'hale. Ha e bapisoa le moemeli oa setso oa ho phekola o tiileng MOCA, sehlahisoa sena se ka pompeloa ka ho toba 'me sa sebelisoa ntle le ho futhumatsa. Sena ha se fokotse feela tšebeliso ea matla le ho rarahana ha ts'ebetso ts'ebetsong ea tlhahiso, empa hape se ka fetoloa bakeng sa maemo a kaho a mocheso o tlase, se sebetsana ka katleho le lintlha tse bohloko tsa indasteri tse kang ho kristaleha ha moemeli oa ho phekola nakong ea tlhahiso ea mariha le kaho e sa phutholohang.

Lintlha li bontša hore ts'ebetso ea DMTDA e feta ea MOCA ka makhetlo a 3.7. E ka etsa sebopeho se tiileng sa urea ka li-isocyanate ka potlako, e eketsa matla a ho thapolla le matla a ho taboha ha lihlahisoa tsa elastomer ka 20%-30%. Ka mocheso o tlase ho likhato tse 40 tsa Celsius, e ntse e boloka ho tenyetseha ho hoholo 'me ts'ebetso ea eona ea hydrolysis e ntlafalitsoe ka 30% ha e bapisoa le MOCA, e leng se etsang hore e lokele maemo a feteletseng a kang mongobo le mocheso o tlase.

Tšebeliso ea dimethyl thio-toluene diamine (DMTDA)

Lefapheng la li-elastomer tsa polyurethane, DMTDA e fetohile thepa ea bohlokoa bakeng sa tlhahiso ea lihlahisoa tsa maemo a holimo. E sebelisoa haholo lits'ebetsong tse kang li-elastomer tsa polyurethane tse betliloeng, ho etsa molding ea injection (RIM), le ho fafatsa polyurea (SPUA), 'me e ka sebelisoa ho hlahisa lihlahisoa tse kang li-roller tsa rabara tse tsamaeang haholo, li-caster tsa indasteri, li-scraper tsa liphaephe tsa oli, le likarolo tsa ho monya shock tsa likoloi. Ka lebaka la matla a eona a ikhethang a mechini le ho hanyetsa oli, ho hanyetsa botsofali, dimethyl thio-toluene diamine (DMTDA) e fihlela litlhoko tse tiileng tsa tlhahiso ea mechini le indasteri ea likoloi bakeng sa ho tšoarella ha likarolo. Haholo-holo lefapheng la lipalangoang tsa ketane e batang, litiiso le li-pad tsa ho monya shock tse lokisitsoeng ka DMTDA li ka ikamahanya le maemo a mocheso o tlase haholo, li fana ka tiisetso ea ts'ebetso e tsitsitseng ea likoloi tsa ketane e batang le lisebelisoa tsa sehatsetsing, 'me e ba tšehetso ea bohlokoa bakeng sa ntlafatso ea lisebelisoa tsa ketane e batang.

dimethyl-thio-toluene-diamine-e sebedisitsweng

 

Meaho le boenjiniere ba ho thibela mafome ke boemo bo bong ba mantlha ba ts'ebeliso eaDMTDAJwalo ka moemedi wa ho phekola resin ya epoxy, dimethyl thio-toluene diamine e ka sebediswa ho lokisa dikobo tse thibelang ho bola tse sebetsang hantle le dikobo tse thibelang ho bola, tse sebediswang haholo ho thibela ho bola ha mabota a ka hare a diphaephe tsa tshepe, kalafo e thibelang ho bola marulelong a meaho le mabota a mahlakoreng, jj. Kobo e hlwekisitsweng e na le kgomarelo e ntle, ho hanyetsa ho bola ha dikhemikhale le botsitso ba sebopeho, e leng se ka atolosang bophelo ba tshebeletso ya meralo ya motheo ka katleho. Maemong a nang le ho bola ho matla jwalo ka boenjiniere ba lewatle le disebediswa tsa merafo, dikobo tse thehilweng ho DMTDA di ka hanela kgoholeho e tswang metsing a lewatle, asiti le alkaline, tsa fokotsa haholo ditjeo tsa tlhokomelo ya disebediswa, mme tsa thusa ho ntlafatsa mahlale lefapheng la ho thibela ho bola ho phahameng.

Litebello tsa nts'etsopele ea dimethyl thio-toluene diamine (CAS 106264 793)

Ho latela melao ya tikoloho le bokgoni ba mmaraka di potlakisitse tshebetso ya ho nkela dimethyl thio-toluene diamine sebaka. Ka dibaka tse kang EU di kenyang dithibelo tshebedisong ya di-agent tse chefo tse phekolang tse tiileng jwalo ka MOCA, amine ya DMTDA e nang le chefo e tlase le e mosa tikolohong e se e fetohile mokhoa o kgethwang indastering. Ha e latele melao ya tshireletso ya tikoloho ya matjhaba feela empa hape e fokotsa tshilafatso ya lerōle nakong ya tshebetso ya tlhahiso mme e ntlafatsa polokeho ya mesebetsi ya di-workshop. Ho ya ka pono ya mokga wa mmaraka, boholo ba mmaraka wa lefatshe wa DMTDA le dihlahiswa tse tshwanang bo fihlile ho di-yuan tse dibilione tse 2.873 ka 2024. Ho lebelletswe hore e hole ka sekgahla sa kgolo ya selemo le selemo sa 17.06% ho tloha ka 2025 ho isa ho 2030. Har'a tsona, tshimo ya polyurethane elastomer ke boemo bo boholo ka ho fetisisa ba tshebediso, mme kgolo ya tlhokeho e tswang tlhahisong e phahameng e fetohile matla a mantlha a ho kganna bakeng sa katoloso ya mmaraka.

tšebeliso-ea-dimethyl-thio-toluene-diamine

Litsebi tsa indasteri li boletse hore ts'ebeliso e kholo eaDMTDA ethacure 300Ha e khothaletse feela ho pheta-phetoa ha sehlahisoa indastering ea moemeli oa ho phekola, empa hape e thusa liindasteri tse theohelang ho fihlella phokotso ea litšenyehelo, ntlafatso ea bokhoni, le ntlafatso ea maemo a holimo. Nakong e tlang, ka tsoelo-pele e tsoelang pele theknolojing e ncha ea thepa, ts'ebeliso ea DMTDA amine lifofaneng, lisebelisoa tsa bongaka, le likhomaretsi tsa maemo a holimo le masimong a mang e tla atoloha le ho feta. Ka nako e ts'oanang, bohloeki bo phahameng (≥99%) le karolelano e ikhethileng ea lihlahisoa tsa DMTDA e tla ba sepheo sa tlholisano ea 'maraka' me e lebise indasteri tseleng e ntlafalitsoeng haholoanyane le e sebetsang hantle. Indasteri ea Unilong, ka boqapi ba theknoloji le katoloso ea bokhoni, butle-butle e ntse e ntlafatsa lentsoe la eona 'marakeng oa lefats'e oa DMTDA le ho fana ka tšehetso ea bohlokoa bakeng sa boikemelo le taolo ea ketane ea indasteri.


Nako ea poso: Pherekhong-23-2026