Tshuaj Antioxidant H CAS 74-31-7 Tshuaj Antioxidant DPPD
Lub npe lus Askiv:N, N-diphenyl-p-phenylenediamine
Cov lus luv luv Askiv:DPPD
CAS RN:74-31-7
1. Cov khoom siv lub cev thiab tshuaj lom neeg:
1.1 Cov mis mos molecular: C18H16N2
1.2 Qhov hnyav ntawm cov khoom: 260.34
1.3 Lub zog tshwj xeeb: 1.2
1.4 Kev yaj: Yaj rau hauv benzene, ether thiab acetone. Yaj me ntsis rau hauv ethanol. Insoluble hauv dej.
1.5 Kub taw tes: 220-225 ℃, 0.5mmHg
1.6 Kev Ruaj Ntseg thiab kev ua haujlwm: Yooj yim hlawv. Thaum nws raug cua lossis tshav ntuj, cov khoom yuav raug oxidized thiab hloov nws cov xim. Thaum kov nrog cov kua qaub hydrochloric kub, nws yuav dhau los ua ntsuab.
1.7 Cov Khoom: Qhov oxidation ntawm cov roj hmab latex thiab cov roj hmab sib xyaw nyob ntawm hom polymer koom nrog. Cov teeb meem suav nrog kev hloov xim tsis zoo, poob ntawm kev ywj pheej, poob ntawm lub zog tensile thiab txo qis kev tiv thaiv kev cuam tshuam, laus, tawg thiab lwm yam kev puas tsuaj ntawm qhov chaw. Cov roj hmab antioxidants muab kev ua tau zoo thiab kev tiv thaiv tseem ceeb hauv kev siv xws li roj hmab thiab yas, tiv thaiv cov polymers los ntawm kev puas tsuaj oxidative vim cua sov, lub teeb, roj fading, peroxides, shear, thiab lwm yam dynamic yam. DPPD antioxidant H muab kev ruaj khov thermal ntev thiab xim ruaj khov; zoo hauv zaj duab xis, fiber, thiab cov khoom tuab; thiab ua tau zoo hauv cov kab ke puv.
| Khoom | Cov Ntawv Qhia | ||
| Zoo nkauj | Qib 1 | Qib 2 | |
| Pib lub ntsiab lus yaj, ℃ | ≥140.0 | ≥135.0 | ≥125.0 |
| Cov ntsiab lus tshauv, %(m/m) | ≤0.40 | ≤0.40 | ≤0.40 |
| Txo los ntawm cua sov, %(m/m) | ≤0.40 | ≤0.40 | ≤0.40 |
| Cov seem los ntawm kev sib tsoo (100 mesh), % (m/m) | ≤1.0 | ≤1.0 | ≤1.0 |
| Qhov tsos | Hmoov grey los yog xim av | ||
Cov tshuaj antioxidant H/DPPD siv tau ua cov tshuaj antioxidant hauv cov khoom siv propellant khov kho kom txhim kho kev ruaj khov ntawm cov khoom. Nws tau siv rau cov roj hmab ntuj, styrene-butadiene, acrylonitrile-butadiene, butadiene, butyl, hydroxyl, polyisoprene kom muaj kev ua tau zoo xws li lub neej zoo thiab crazing rau kev txhim kho tensile modulus, txhawb nqa kev tiv thaiv rau cov pa oxygen kub, ozone thiab qee cov hlau tsis zoo xws li tooj liab, manganese tsis cuam tshuam rau vulcanization ntawm cov roj hmab. Nws tuaj yeem daws teeb meem kev laus uas muaj nyob rau hauv cov khoom roj hmab xim tob thaum antioxidant H siv ua ke nrog antioxidant D. Ntxiv mus, nws kuj tseem siv tau ua cov tshuaj stabilizer oxygen kub rau cov yas engineering xws li polyethylene, polypropylene, polyamide, polyformaldehyde kom txhim kho lawv cov kev ua tau zoo tiv thaiv huab cua.
Siv: 1) Tshuaj Antioxidant H/DPPD (N,N'-Diphenyl-p-phenylenediamine) yog siv los ua tshuaj antioxidant thiab stabilizer rau roj hmab, roj av thiab cov khoom noj. Nws kuj tseem siv los ua cov tshuaj polymerization inhibitor thiab cov tshuaj retardant tiv thaiv kev puas tsuaj ntawm tooj liab. Nws yog cov tshuaj nruab nrab los ua cov xim zas, tshuaj, yas, thiab cov tshuaj ntxuav tes.
2) Antioxidant H/DPPD kuj tseem siv rau hauv kev tsim cov polyolefins uas tsis muaj xim ruaj khov nrog rau PVC thiab PVB zaj duab xis.
3) Cov tshuaj antioxidant H/DPPD yog siv dav hauv feem ntau cov lattices thiab roj hmab ntuj thiab hluavtaws.
Ntim:Lub hnab ntim nrog lub hnab yas, qhov hnyav tag nrho 20 kg / hnab.
Kev Khaws Cia:Khaws cia rau qhov chaw txias thiab muaj cua nkag. Lub sijhawm khaws cia yog 12 lub hlis tom qab hnub tsim khoom. Nws tseem muaj yog tias qhov tshwm sim rov kuaj dua tau lees paub tom qab hnub tas sij hawm.
Cov lus qhia txog kev nyab xeeb:Tshuaj lom. Yuav tsum siv cov hnab looj tes roj hmab, lub tshuab ua pa thiab lub qhov muag thaum lub sijhawm ua haujlwm yog tias raug daim tawv nqaij, raug qhov muag.
Kev Thauj Mus Los:Tsis txhob los nag, raug tshav ntuj, thiab kub heev.
