Utomoni wa petroleum ndi mtundu wa epoxy resin wokhala ndi kulemera kochepa kwa maselo. Kulemera kwa ma molekyulu nthawi zambiri kumakhala kotsika kuposa 2000. Imakhala ndi ductility yamafuta ndipo imatha kusungunula zosungunulira, makamaka zosungunulira zamafuta opangidwa ndi organic. Zimagwirizana bwino ndi zida zina za utomoni. Ili ndi kukana kwapamwamba kwambiri kwa abrasion komanso kukana kukalamba. Magawo ake ofunikira amaphatikizanso kufewetsa, hue, unsaturation, mtengo wa asidi, mtengo wa saponification, kachulukidwe wachibale, ndi zina zotero.
Malo ochepetsera ndi chizindikiro chachikulu cha utomoni wa petroleum, zomwe zikutanthauza kuti mphamvu zake, brittleness, ndi viscosity zimasiyana ndi kugwiritsa ntchito, komanso kufewetsa kofunikira kumasiyananso. Nthawi zonse, malo ochepetsera popanga mphira wopangidwa ndi vulcanized ndi 70 ° C mpaka 1000 ° C, ndipo malo ochepetsera popanga zokutira ndi utoto ndi 100 ° C mpaka 1200 ° C.
Kuphatikiza apo, mulingo wa kusintha kwa tonal chifukwa cha kuwala kwa ultraviolet ndi zotsatira za kutentha ndizofunikanso kwambiri. Phindu la asidi lingagwiritsidwe ntchito osati kungozindikira mphamvu zosungirako zopangira zitsulo za asidi-base komanso kuzindikira zigawo za carbonyl ndi carboxyl zosungirako utomoni wa petroleum chifukwa cha okosijeni.
Mapangidwe a petroleum resin ndi ovuta kwambiri. Ndi malonda ndi kulimbikitsa ntchito zake zazikulu, pali mitundu yambiri, yomwe ingagawidwe m'magulu asanu:
â Mafuta a m'thupi la munthu, utomoni wa cycloaliphatic epoxy, wokonzedwa kuchokera ku C5 fraction, yomwe imadziwikanso kuti C5 epoxy resin;
â¡ p-xylene epoxy resin, yomwe nthawi zambiri imapangidwa kuchokera ku C9 fraction, yomwe imadziwikanso kuti C9 epoxy resin;
⢠p-xylene-aliphatic hydrocarbon copolymer epoxy resin, yomwe imadziwikanso kuti C5/C9 epoxy resin;
â£Dicyclopentadiene epoxy resin, yomwe imapangidwa kuchokera ku dicyclopentadiene kapena mankhwala ake, imatchedwanso DCPD epoxy resin. Chifukwa epoxy utomoni unsaturated aliphatic hydrocarbon magulu, amatchedwanso reflective mphete Oxygen utomoni.
⤠Utoto wamafuta a hydrocracking, nthawi zambiri C5 kapena C9 epoxy resin umakhala wofiirira wofiyira mpaka wachikasu ndipo umatha kukhala woyera ngati wamkaka kapena wowoneka bwino pambuyo pa hydrocracking.
Utoto wa petroleum umagwiritsidwa ntchito makamaka popangira zomangira, zomatira, kusindikiza kwa inki, zotetezera, ndi zida zosinthidwa mphira. Ndi chitukuko chopitilira ukadaulo wa utomoni, ntchito zake zazikulu zikukulanso mosalekeza. C5 epoxy resin ndi gulu lomwe likukula mwachangu pakadali pano, ndipo limagwiritsidwa ntchito kwambiri pazoyala zomanga, inki zosindikizira, kusindikiza, kulumikiza ndi mafakitale ena. C9 epoxy resin imagwiritsidwa ntchito kwambiri popaka utoto, mphira wowotchera, pulasitiki ndi mafakitale ena, ndipo kukula kwake ndi msika wamapangidwe ake ndi otakata kwambiri.
