Pangani mtundu wina wa CTBN Carboxyl terminated butadiene nitrile rabara (CTBN) CAS 25265-19-4 Carboxyl-Terminated Butadiene-Acrylonitrile CAS 25265-19-4/68891-46-3
Butadiene acrylonitrile yamadzimadzi yotchedwa carboxyl-terminated butadiene acrylonitrile ndi mtundu umodzi wa rabara yamadzimadzi yomwe ili ndi gulu la carboxyl monga gulu lake la ntchito, ndipo code yake ndi CTBN, ingagwiritsidwe ntchito kwambiri m'mafakitale apa ndege ndi m'mafakitale apakhomo. Nthawi zambiri CTBN imagwiritsidwa ntchito pamodzi ndi somatotype resin. CTBN yomwe ili ndi gulu logwira ntchito la carboxyl-terminated imatha kuchitapo kanthu pa epoxy resin kuti iwonjezere kulimba.
CTBN ingagwiritsidwe ntchito ngati:
- Zomatira, zomangira, zotsekera, zopopera, zophikira m'miphika (mlengalenga, magalimoto, zamagetsi/zamagetsi, mafakitale, ntchito zapamadzi ndi zomangamanga...)
- Zophimba (yankho, ufa, madzi)
- CTBN ndi yolimba ku epoxy resin ndipo ili ndi kusintha kwabwino kwambiri kwa ma resins osinthira kutentha monga epoxy, phenolic, unsaturated polyester ndi ma resins osavuta kuwala.
1. Zimawonjezera kulimba ndi kusinthasintha kwa ma resini a thermoset
2. Zimathandiza kuti zinthu zikhale zolimba kwambiri
3. Imawonjezera kukana ming'alu ndi kukana kugwedezeka
4. Zimathandiza kuti thupi likhale lolimba (kukana kutopa)
5. Kumawonjezera mphamvu za makina zomwe sizitentha kwambiri
6. Mtundu wa FDA ulipo
1. CTBN ndi njira yabwino kwambiri yosinthira ma resins a thermosetting monga epoxy, phenolic, unsaturated polyester ndi ma resins osavuta kuwala. Ikhoza kuwonjezera kukana kwa kufooka ndi kukana kusweka kwa chinthu chomaliza.
2. Guluu wachitsulo wopangidwa ndi epoxy resin womwe umasinthidwa ndi CTBN (kuchuluka kwa acrylonitrile ndi 25%), uli ndi kulimba kwabwino, kusinthasintha komanso kukana kutopa. Ungagwiritsidwe ntchito kumangirira zigawo za plane, komanso galasi lachilengedwe ndi lamba wa terylene. Guluu uwu ungagwiritsidwenso ntchito ngati guluu wothira zinthu zosiyanasiyana monga ulusi wagalasi, terylene ndi ulusi wa kaboni.
3. Guluu wopangidwa kuchokera ku CTBN ndi epoxy resin ukhoza kuuma pa kutentha kwabwinobwino, ungagwiritsidwe ntchito kulumikiza zinthu zowala, udzafika pa mphamvu yayikulu kwambiri ya guluu patatha maola 72. Mphamvu ya peel ndi 0.55MPa, ndipo mphamvu yodula ndi 26.7MPa. Zinthu zomangira zamagetsi zopangidwa ndi CTBN modified epoxy, zomwe zimawonjezera kukana kwa ming'alu, sizidzakhala ndi ming'alu pambuyo pobwezeretsanso nthawi 200 pa kutentha pakati pa -55.0℃ ndi 150℃.
4. CTBN ingagwiritsidwe ntchito ngati guluu mu grind ndi cutting wheel, ili ndi ubwino wa guluu wochepa koma wolimba kwambiri, komanso imagwira ntchito bwino ngati polish, komanso yolimba kwambiri pamadzi otentha.
5. CTBN imagwiritsidwa ntchito makamaka ngati chomangira cha ma rocket propellants olimba.
6. CTBN ya Zophimba (yankho, ufa, yoyendetsedwa ndi madzi).
7. Ndi mitundu ina yambiri ya ntchito
Yopakidwa mu 50kg/ng'oma, 180kg/ng'oma, Nthawi yosungira ndi chaka chimodzi.
Malangizo achitetezo:
Kusungirako kuyenera kukhala kozizira, kouma komanso kopatsa mpweya wabwino. Malo abwino kwambiri ndi pakati pa -20 ~ 38℃. Nthawi yosungiramo zinthu ndi miyezi 12, ngati yatha, ingagwiritsidwenso ntchito ngati ili yoyenera nthawi zonse poyesanso. Mukayendetsa, samalani kupewa mvula, kuwala kwa dzuwa. Musasakanize ndi chotenthetsera champhamvu.
| CHINTHU | CTBN-1 | CTBN-2 | CTBN-3 | CTBN-4 | CTBN-5 |
| Mtengo wa Carboxyl(mmol/g) | 0.45 - 0.55 | 0.45-0.65 | 0.45-0.65 | 0.65-0.75 | 0.45-0.70 |
| Maonekedwe | Madzi a Amber Viscous, opanda zonyansa zooneka | ||||
| Kukhuthala (27℃,Pa.S) | ≤180 | ≤200 | ≤300 | ≤200 | ≤600 |
| Kuchuluka kwa acrylonitrile,% | 8.0-12.0 | 8.0-14.0 | 18.0-22.0 | 18.0-22.0 | 24.0-28.0 |
| Chinyezi, kulemera% ≤ | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Zamkati Zosakhazikika,% ≤ | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Kulemera kwa maselo | 3600 - 4200 | 3000 - 4500 | 3000 - 4500 | 2500 - 3000 | 3000 - 4500 |
| * Kuphatikiza apo: Tikhoza kufufuza ndi kupanga mtundu uliwonse watsopano wa CTBNmalinga ndi zosowa zapadera za makasitomala athu. | |||||
