CTPB cas 586976-24-1 Carboxyl-Terminated Polybutadiene CTPB
Cov roj hmab polybutadiene uas muaj cov roj hmab carboxyl-terminated feem ntau hu ua CTPB. Vim muaj cov carboxyl nyob rau ob sab ntawm cov polymeric molecule, cov polymer no nqa cov qauv raws li pawg carboxyl, kev faib tawm ntawm lub network yog huv si thiab tsis muaj qhov chaw nres nkoj dawb. Yog li nws muaj kev ua tau zoo heev.
Cov pawg kawg ntawm carboxyl tuaj yeem ua rau epoxy resin ua haujlwm tau zoo, uas ua rau epoxy resin tawv dua. Piv nrog CTBN, CTPB muaj viscosity qis dua, ua haujlwm tau zoo dua thaum kub qis thiab yooj ywm dua.
Cov khoom tsis yog tsuas yog siv tau rau hauv cov khoom siv foob pob hluav taws xwb, tab sis kuj siv tau rau hauv elastomers, adhesives, sealing material, epoxy resin modification thiab electrical resistant material.
Ntim rau hauv 50kg / nruas, 180kg / nruas, Lub sijhawm cia khoom yog 1 xyoos.
Cov lus qhia txog kev nyab xeeb:
Kev khaws cia yuav tsum tau khaws cia rau qhov chaw txias, qhuav thiab muaj cua nkag. Qhov kub zoo tshaj plaws yog -20 ~ 38 ℃. Lub sijhawm khaws cia yog 12 lub hlis, yog tias tas sij hawm, tseem siv tau yog tias ua tau raws li tus qauv los ntawm kev rov kuaj dua. Thaum thauj mus los yuav tsum tsis txhob los nag lossis tshav ntuj. Tsis txhob sib tov nrog cov tshuaj oxidizing muaj zog.
| yam khoom | Qhov Qhia | |
| Qib 1 | Qib 2 | |
| Kev piav qhia | Xim av daj los yog xim daj daj transparency kua, tsis pom micelle thiab cov khoom tsis huv | |
| viscosity (40 ℃), Pa.s | ≤15 | ≤12 |
| Tus nqi Carboxyl, mmol / g | 0.40~0.47 | 0.43~0.52 |
| Cov dej ntsiab lus,% | ≤0.05 | ≤0.05 |
| Qhov hnyav ntawm cov molecule | 4100 - 4500 | 2800 - 3400 |
| Kev ua haujlwm | 1.75 - 1.95 | 1.90 - 2.10 |
