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Nekuwedzera kuri kuramba kuchiitika kwekuda kwezvinhu zvinovaka muviri, zvine hushamwari kune nharaunda uye zvinoshanda zvakanyanya mumaindasitiri matsva ezvinhu zvakaita sepolyurethane ne epoxy resin,dimethyl thio-toluene diamine(DMTDA, nhamba yeCAS: 106264-79-3) zvishoma nezvishoma yave chinhu chikuru chinosimudzira indasitiri nekuda kwehunhu hwayo hwakasiyana hwezvigadzirwa uye mamiriro akasiyana ekushandiswa. Semhando itsva ye aromatic diamine curing agent uye chain extender, DMTDA iri kutsiva zvishoma nezvishoma mishonga yechinyakare yakasimba. Dimethyl thio-toluene diamine yakashandiswa zvakanyanya munzvimbo dzakasiyana dzakadai semota, kuvaka, cold chain, uye anti-corrosion, zvichikurudzira indasitiri kushandura kuenda kune low-carbon, high-efficiency uye high-end development.

Hunhu hwe dimethyl thio-toluene diamine (DMTDA)

Zvakanakira zvikuru zveDimethyl thio-toluene diamine (DMTDA)inobva pahunhu hwayo hwemuviri hwekuva muchimiro chemvura patembiricha yemumba uye mashandiro ayo akanaka emakemikari. Kana tichienzanisa neMOCA yechinyakare solid curing agent, chigadzirwa ichi chinogona kupombwa zvakananga uye kushandiswa pasina kudziyisa. Izvi hazvingoderedzi zvakanyanya kushandiswa kwesimba uye kuoma kwekushanda mukugadzirwa, asiwo zvinogona kugadziriswa mumamiriro ekuvaka asina tembiricha yakaderera, zvichibatsira kugadzirisa zvinorwadza zveindasitiri zvakaita sekuita kuti mushonga ucheneswe panguva yekugadzirwa kwechando uye kuvaka kusina kunaka.

Data rinoratidza kuti reactivity yeDMTDA yakapetwa ka3.7 pane MOCA. Inogona kuumba chimiro cheurea chakasimba chine isocyanates nekukurumidza, zvichiwedzera simba rekudhonza uye simba rekubvaruka kwezvigadzirwa zve elastomer ne20%-30%. Pa minus 40 degrees Celsius, ichiri kuchengetedza kusimba kwakanaka uye mashandiro ayo ehydrolysis anovandudzwa ne30% zvichienzaniswa neMOCA, zvichiita kuti ive yakakodzera mamiriro akaipisisa akadai sehunyoro uye tembiricha yakaderera.

Kushandiswa kwe dimethyl thio-toluene diamine (DMTDA)

Mundima ye polyurethane elastomers, DMTDA yave chinhu chakakosha pakugadzira zvigadzirwa zvepamusoro. Inoshandiswa zvakanyanya mumabasa akadai se casting polyurethane elastomers, reaction injection molding (RIM), uye spraying polyurea (SPUA), uye inogona kushandiswa kugadzira zvigadzirwa zvakaita se high-mobility rubber rollers, industrial casters, oil pipe scrapers, uye automotive shock absorption components. Nekuda kwesimba rayo remakanika uye resistance yemafuta, resistance yekukwegura, dimethyl thio-toluene diamine (DMTDA) inosangana nezvinodiwa zvekugadzirwa kwemakanika uye indasitiri yemotokari kuti zvikamu zvigare kwenguva refu. Kunyanya mumunda wekutakura cold chain, ma seal nema shock absorption pads akagadzirwa neDMTDA anogona kuchinjika kunzvimbo dzakanyanya kupisa, achipa vimbiso yekushanda kwakasimba kwemotokari dzecold chain nemidziyo yefiriji, uye kuva rutsigiro rwakakosha rwekusimudzira cold chain logistics.

Magadzirirwo ezvivakwa uye mainjiniya ekudzivirira ngura ndeimwe mamiriro ekushandisa kukuru kweDMTDASemushonga we epoxy resin, dimethyl thio-toluene diamine inogona kushandiswa kugadzira machira ekudzivirira ngura anoshanda zvakanyanya uye machira anodzivirira ngura, ayo anoshandiswa zvakanyanya mukudzivirira ngura yemadziro emukati memapaipi esimbi, kugadzirisa matenga ezvivakwa nemadziro emativi, nezvimwewo. Machira akaomeswa ane kunamira kwakanaka, anodzivirira ngura yemakemikari uye kugadzikana kwechimiro, izvo zvinogona kuwedzera hupenyu hwebasa rezvivakwa. Muzviitiko zvine ngura yakanyanya senge michina yekugadzira ngarava nemidziyo yekuchera, machira eDMTDA anogona kudzivirira kukurwa kwemvura yegungwa, acidic uye alkaline, kuderedza zvakanyanya mari yekugadzirisa michina, uye kubatsira kusimudzira matekinoroji mumunda wekudzivirira ngura yepamusoro.

Mikana yekukura kwe dimethyl thio-toluene diamine (CAS 106264 793)

Kutevedzera nharaunda uye mukana wemusika zvakawedzera kukurumidzisa maitiro ekutsiva dimethyl thio-toluene diamine. Nenzvimbo dzakadai seEU dzichiisa zvirambidzo pakushandiswa kwezvinhu zvine chepfu zvakaita seMOCA, DMTDA amine ine chepfu shoma uye isingakuvadzi nharaunda yave imwe nzira inodiwa muindasitiri. Haingoteveri chete mitemo yepasi rose yekudzivirira nharaunda asiwo inoderedza kusvibiswa kweguruva panguva yekugadzira uye inosimudzira kuchengetedzeka kwemabasa eworkshop. Kubva pamaonero emusika, saizi yemusika wepasi rose weDMTDA nezvimwe zvigadzirwa zvakafanana yakasvika 2.873 bhiriyoni yuan muna 2024. Inotarisirwa kukura nekukura kwegore negore kwe17.06% kubva muna 2025 kusvika 2030. Pakati pavo, munda we elastomer we polyurethane casting ndiwo mamiriro makuru ekushandiswa, uye kukura kwekudiwa kubva mukugadzira kwepamusoro kwave chinhu chikuru chinotungamira kukura kwemusika.

Nyanzvi dzeindasitiri dzakataura kuti kushandiswa kukuru kweDMTDA ethacure 300Hazvingobatsiri chete kuvandudzwa kwezvigadzirwa muindasitiri yemishonga inorapa, asiwo zvinobatsira maindasitiri ari pasi kuti awane kudzikiswa kwemitengo, kuvandudzwa kwekushanda zvakanaka, uye kuvandudzwa kwepamusoro-soro. Mune ramangwana, nekubudirira kuri kuramba kuchiita matekinoroji matsva, kushandiswa kweDMTDA amine mundege, zvishandiso zvekurapa, uye zvinonamatira zvepamusoro-soro nedzimwe nzvimbo kuchawedzera kukura. Panguva imwe chete, kuchena kwakanyanya (≥99%) uye chiyero chakagadziriswa zvigadzirwa zveDMTDA zvichave chinangwa chemakwikwi emusika uye zvichatungamira indasitiri kuenda kunzira yakanatswa uye inoshanda zvakanyanya. Indasitiri yeUnilong, kuburikidza nehunyanzvi hwetekinoroji uye kuwedzera kugona, iri kuwedzera zvishoma nezvishoma izwi rayo mumusika wepasi rose weDMTDA uye ichipa rutsigiro rwakakosha rwekuzvitonga nekudzora cheni yemaindasitiri.