Purity 99% min 1,4-Phenylene diisocyanate CAS 104-49-4 p-phenylene diisocyanate (PPDI)
Lub npe tshuaj: 1,4-Phenylene diisocyanate
Lub ntsiab lus: p-phenylene diisocyanate (PPDI)
Cov mis mos molecular: C8H4N2O2
Molecular Luj: 160.13
CAS Nr .: 104-49-4
Physicochemical zog: PPDI yog cov dawb flaky khoom. Melting point: 94 ° C. Kub taw tes: 110 ~ 112 ° C (3.3kPa) Ceev: 1.17g / cm3
PPDI yog ntshiab 1,4-Phenylene diisocyanate (PPDI), CAS naj npawb yog 104-49-4. PPDI yog tus neeg sawv cev kho mob siab tshaj / saw txuas rau polyurethane (PU) thermoplastic elastomers. PPDI-based casting elastomers yog tshwj xeeb nrog kev ua haujlwm zoo heev. Qhov txiaj ntsig pom tseeb yog tias cov log tsheb ceev uas tsim nrog PPDI tuaj yeem sawv rau qhov kub thiab txias ntau dua nyob rau hauv kev ua haujlwm nrawm thiab txuas mus ntxiv. Yog li, PPDI-raws li lub log yog qhov kev daws teeb meem zoo tshaj plaws rau cov neeg xav tau kev ua haujlwm ntev, muaj peev xwm thauj khoom loj thiab kev xav tau kub kub. Feem ntau, PU elastomers muaj qhov zoo heev ntawm kev puas tsuaj, tsim kua muag thiab txiav tsis kam piv rau cov khoom siv hluavtaws. Txawm hais tias PPDI thiab MDI muaj cov qauv zoo sib xws, hardness thiab modulus zog piv rau TODI, cov isocyanate muaj qis dua molar piv ntawm polyol rau polyol hauv PPDI. Yeej, PPDI-hom elastomers yog hloov tau ntau dua li MDI-hom thiab TODI-hom polyurethane elastomers. Ntawm tag nrho cov polyurethane elastomers, PPDI-raws li cov uas paub txog cov log tsheb uas muaj kev ntxhov siab heev, piv txwv li log tsheb rau forklifts, tsheb thiab dav hlau; coj rollers, lub log rau cov cav tov; kev kub ceev skate rollers thiab lwm yam. Hauv luv luv, PPDI-hom elastomer yog qhov kev xaiv zoo tshaj plaws rau kev siv qis tshaj plaws thiab kub siab tshaj plaws. Niaj hnub no, PPDI curing tus neeg sawv cev yog dav siv nyob rau hauv TPU-cov khoom raws li lub ntsiab saw extender, thiab daim ntawv thov txuas ntxiv, xws li O-rings, hydraulic seals, coupling hnub qub thiab tshuaj ntsuam luam ntawv squeegee hniav.
Cov txiaj ntsig zoo rau nws qhov zoo tshaj plaws ntawm cov cua sov, puas, tsim kua muag thiab txiav tsis kam, PPDI-raws li elastomers tau dav siv rau hauv kev lag luam uas xav tau kom tsis tshua muaj deformation, cua sov ua haujlwm. PPDI yog qhov tseem ceeb hauv TPU (thermoplastic polyurethane elastomer). Hydraulic seals, wipers, piston ntsaws ruaj ruaj, O-rings, qws ntsaws ruaj ruaj, pulleys uas thov kom tshav kub tsis kam thiab siab tsis kam yog lwm yam tseem ceeb ntawm PPDI curing agent. Tsis hais txog cov log tsheb rau forklifts, tsheb, tshuab, dav hlau thiab pulleys, log, coj cov menyuam rau dampening cov ntsiab lus uas yog lwm qeb rau PPDI-hom elastomers.
Ntim: 20kg, 40kg, 50kg / hlau nruas.
Kev khaws cia thiab kev thauj mus los: PPDI yog rhiab heev rau ya raws. Dej reacts nrog tag nrho cov diisocyanates los tsim insoluble urea derivatives. Tsis txhob muab PPDI nrog rau cov zaub mov thiab tsis txhob nthuav tawm hauv ib puag ncig siab dua 30 ℃. Tom qab siv, lub hau yuav tsum tau muab kaw tam sim ntawd thaum muaj kev ua haujlwm tsis zoo. Raws li qhov tsim nyog sab nraud, PPDI siv tau rau rau lub hlis tsawg kawg nrog cov txiaj ntsig txij li hnub uas nws tau xa tuaj.
| Tshuaj muaj pes tsawg leeg | 1,4-Phenylene diisocyanate (PPDI), P-Phenylene Didisocyanate, Paraphenylene diisocyanate, Benzene 1,4-diisocyanate |
| CASNumber | 104-49-4 ib |
| NCO % | 52.5% |
| Tus cwj pwm tsw | cyanate tsw |
| Purity | ≥99.0% |
| Qhov ntom | 1.17g / cm3 ntawm 20 ° C |
| Boiling point | 236.2 ° C ntawm 760 mmHg |
| Qhov chaw khov | 96-99 ° C |
| Flash point | 92.4°C dej |
| Vapor siab | 0.048mmHg ntawm 25 ° C |
| Tag nrho cov tshuaj chlorine | ≤ 0.1% |
| Hydrolysable tshuaj chlorine | ≤ 0.03% |
| Melting point | 94 ° C |
| Khoom | 1,4-Phenylene diisocyanate (PPDI) | |||||
| Batch No | 23 00405 | Ntim | 20kg / nruas | Ntau | 500 kgs | |
| Hnub tsim khoom | 2023-04-05 IB | Hnub Kawg | 2024-04-04 IB | |||
| Yam khoom | Specification | Cov txiaj ntsig | ||||
| Qhov tshwm sim | Lub teeb daj mus rau dawb flaky khoom | dawb flaky khoom | ||||
| Hydrolyzed tshuaj chlorine,% | ≤ 0.02 | 0.018 3 | ||||
| Melting point, ℃ | 94-96 : kuv | 95 | ||||
| -NCO Content, % | 52.0-53.0 Nws | 52.21 Nws | ||||
| Purity,% | ≥99.0 | 99.35 ib | ||||
| Xaus | Tsim nyog | |||||
| 1. | |
| 2. | |
| 3. | |
| 4. | |
| 5. | |
| 6. | TSI 80/20 |
| 7. | TDI-Base Polyisoyanurate (RC) |
| 8. | IS (1,5-Naphthalene Diisocyanate) CAS 3173-72-6 |
| 9. | RF (JQ-4) |
| 10. | RN |
| 11. | DETDA CAS 68479-98-1 |
| 12. | DMTDA CAS 106264-79-3 |
| 13. | MMEA CAS 19900-72-2 Nr |
| 14. | TODI CAS 91-97-4 |
| 15. | CAS Nr .: 122-51-0 |
| 16. | MOCA CAS 101-14-4 |
| 17. | PTSI CAS 4083-64-1 |
| 18. | lwm... |
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