Ɔkwan bɛn so na wobetumi ama rɔba a ɛko tia ɔhyew no atu mpɔn?
Mframa a ɛyɛ hyew a ɛma obi nyin anaasɛ ɔhyew a ɛyɛ hyew a ɛko tia no reyɛ nea ɛho hia kɛse, titiriw wɔ kar mu a wɔde rɔba afã horow di dwuma kɛse wɔ mmeae a wɔakata so a ɛhɔ hyew yɛ kɛse no. Wɔn a wɔyɛ kar no ate nhyɛso a ɛrekɔ soro nka sɛ wɔbɛhyɛ wɔn ho bɔ sɛ wɔbɛma wɔn nkwa nna akyɛ ama wɔn rɔba afã horow no. Anaerobic heat aging properties ne ɔhyew ne mframa a ɛkyɛ no yɛ soronko. Rɔba no tumi gyina ɔhyew ano yiye, nanso ebia ɛda so ara ntumi nnyina oxygen ntua ano.
Hyɛ no nsow: Ebia saa sɔhwɛ nhyehyɛe ahorow a ɛwɔ hɔ nyinaa no rentumi mfa asɛm pɔtee biara ho. Nneɛma a ɛsakra no mu biara a ebetumi ama mframa-akɔkoraa ahoɔden anaasɛ ɔhyew-akɔkoraa ahoɔden a ɛko tia no atu mpɔn no bɛka nneɛma afoforo ampa, ama ayɛ yiye anaasɛ asɛe.
1. Perfluoroelastomer .
Sɛ ɛho hia sɛ rɔba ade no nya ɔhyew a ɛyɛ den a, ɛsɛ sɛ wopaw perfluorinated rɔba. Wɔbɔ amanneɛ sɛ perfluoroelastomer a wɔde di dwuma no yɛ 316°C.
2、 fluorine rɔba .
Fluorine rɔba FKM wɔ ɔhyew a ɛyɛ adwuma yiye, na wobetumi de adi dwuma wɔ ɔhyew a ɛkɔ soro kodu 260°C mu. Sɛnea ɛbɛyɛ a wobɛhyɛ ɔhyew a ɛkɔ soro a ɛko tia fluorine rɔba no mu den kɛse no, ɛsɛ sɛ wopaw acid agyefo a ɛfata (acid absorbent), te sɛ magnesium oxide a ɛba fam, magnesium oxide a ɛyɛ adwuma kɛse, calcium oxide, calcium hydroxide, zinc oxide, ne nea ɛkeka ho fluoelastomer’s heat resistant mframa a ɛyɛ papa nso, ne sɛ ɛbɛyɛ nea ɛyɛ papa sɛ ɛbɛyɛ yiye. Ɛdenam bisphenol AF a wɔbɛpaw sɛ vulcanization nhyehyɛe no so no, ɔhyew a ɛyɛ den a ɛko tia rɔba no bɛyɛ papa. Sɛ wɔde di dwuma wɔ engine mu ngo a ano yɛ den mu a, ɔhyew onyin a ɛko tia ternary fluoroelastomer a wɔde vinylidene fluoride, tetrafluoroethylene ne propylene ayɛ no ye sen fluoroelastomer a ɛwɔ hɔ nyinaa. Eyi fi hexafluoropropylene a wɔde propylene besi ananmu wɔ polymerization nhyehyɛe no mu no.
3、 Hnbr .
Dodow a hydrogenation dodow kɔ soro no, dodow no ara na HNBR ɔhyew a ɛko tia no yɛ papa, efisɛ ɛkame ayɛ sɛ nkitahodi abien biara nni nkɔnsɔnkɔnsɔn titiriw no so a entumi nnyina. HNBR ahorow bi da so ara betumi ayɛ vulcanized ne sulfur efisɛ ɛda so ara wɔ nkitahodi abien bi a ɛnyɛ den. Nanso, sɛ wɔde peroxide gu vulcan mu a, ɔhyew a ɛwɔ aduru no mu no bɛyɛ yiye. Wɔ HNBR rɔba ho no, TOTM betumi ama ɔhyew atumi agyina ano yiye sen DOP esiane sɛ saa trioctyl plasticizers yi mu duru a ɛba fam ne molecule mu duru a ɛkɔ soro nti.
4. Neoprene .
W-Type Neoprene wɔ ɔhyew onyin a ɛyɛ den sen G-type neoprene. Diphenylamine octanoate yɛ ade a eye sen biara a ɛko tia ɔyare mmoawa a wɔde yɛ neoprene, na eyi betumi ama ɔhyew a ɛko tia no atu mpɔn yiye.
5、 EPDM .
EPDM bɛda so ara wɔ ɔhyew a ɛko tia pa wɔ 125°C akyi a ɛfata fit. Sɛ wɔde peroxide vulcanized EPDM di dwuma a, ebetumi ama rɔba no anya ɔhyew a ɛyɛ den.
6、 Nneɛma a ɛyɛ hyew a ɛba fam a ɛyɛ vapor phase kwan EPDM .
Ethylene a ɛdɔɔso ne ultra-low viscosity vapor phase EPDM, betumi ahyɛ ma dodow kɛse bi fillers, esiane ethylene dodow, processing nhia sɛ join processing of ɔhyew-resistant mframa onyin a ɛnyɛ papa na resin, da so ara betumi ayɛ no betumi ayɛ yiye processing su, enti ankasa ɔhyew a ɛko tia rɔba no yɛ nkɔso.
7、 Kwati sɛ wode styrene resin a ɛkorɔn bedi dwuma .
Kwati sɛ wode styrene resin a ɛkorɔn bɛka rɔba a wɔde di dwuma wɔ ɔhyew a ɛkɔ soro mu no ho.
8、 Talcum powder .
Wɔ EPDM hose rɔba mu no, fa talcum powder si carbon black 40% ananmu, na ebetumi ama ɔhyew a ɛwɔ rɔba no mu no ayɛ kɛse. Talcum powder ahorow bi wɔ mfaso a ɛda nsow sen dɔte a wɔayɛ ho adwuma anaasɛ wɔansa no yare wɔ eyi mu.
9、 Nneɛma a ɛyɛ den a ɛyɛ den sɛ ɛbɛhyew .
Wɔ plasticizers mu no, plasticizers a ɛyɛ den kɛse no betumi ama ɔhyew a ɛyɛ hyew a ɛko tia ɔhyew no ayɛ kɛse sen plasticizers a ɛyɛ nwini a ɛba fam. Efisɛ mpɛn pii no, plasticizer a ɛyɛ den a ɛyɛ den no mu duru yɛ kɛse, ɛnyɛ mmerɛw sɛ ɛbɛbɔ, na ɛnam so ayɛ nea ɛyɛ den yiye na ɛko tia ɔhyew pa.
10、rape aba ngo ma neoprene .
Sɛnea ɛbɛyɛ a Neoprene bɛyɛ nea ɛyɛ den sɛ ebetumi agyina ano no, canola ngo ho hia efisɛ ɛwɔ nsu a ɛyɛ den a ɛba fam, a ɛma rɔba no nya hysteresis a ɛba fam ne nsakrae a ɛba fam, a ebetumi ama rɔba no anya onyin a ɛyɛ papa.
11、EV/semi-effective sev vulcanization nhyehyɛe no yɛ adwuma yiye .
Wɔ vulcanization nhyehyɛe a etu mpɔn anaasɛ ɛyɛ adwuma fã bi no mu no, accelerator ne sulfur no nsusuwii no yɛ kɛse, kyerɛ sɛ, 'akwan a ɛkorɔn ne sulfur' nhyehyɛe a ɛba fam, a 'sulfur to the body' mmom sen sɛ ɛbɛyɛ sulfur biako, wɔ saa vulcanization nhyehyɛe yi mu no, of single sulfur bond and double sulfur bond, its its, its ride Bond ne double sulphur bond no korɔn sen nea ɛwɔ multi-sulfur bond mu no, enti, ɔhyew a ɛko tia rɔba no gyina hɔ ma na ɔhyew a ɛma onyin no tumi gyina ano no tu mpɔn.
12、zinc oxide .
Vulcanization / sub-sulfuramide vulcanization nhyehyɛe a ɛwɔ rɔba no mu, a zinc oxide pii ahyɛ mu ma no, betumi ama rɔba no ayɛ hyew yiye na atumi agyina ano yiye wɔ Sulfur akyi.
13、peroxide vulcanized EPDM rɔba .
Wɔ peroxide vulcanized EPDM aduru no mu no, wɔpaw ZMTI sɛ antioxidant, a ebetumi ama aduru no anya modulus a ɛkorɔn ne ɔhyew a ɛkyɛ a ɛko tia.
