Gulu kufotokoza kwa epoxy utomoni kutchinjiriza bolodi

Mafinya a epoxy nthawi zambiri amatanthauza mankhwala opangidwa ndi ma polima omwe amakhala ndi magulu awiri kapena kupitilira apo a molekyulu. Kupatula owerengeka, kuchuluka kwawo kwama molekyulu sikokwanira. Kapangidwe ka maselo a epoxy resin amadziwika ndi gulu la epoxy lomwe limagwira ntchito mndende. Gulu la epoxy limatha kupezeka kumapeto, pakati kapena munthawi yazoyanjana zamagulu. Chifukwa mawonekedwe ake amakhala ndimagulu a epoxy, atha kulumikizana ndi mitundu ingapo yamankhwala ochiritsa kuti apange ma polima osasungunuka osasunthika omwe ali ndi ma network atatu.

Ntchito makhalidwe a epoxy utomoni bolodi kutchinjiriza

1. Mitundu yosiyanasiyana. Ma resin osiyanasiyana, othandizira kuchiritsa, ndi makina osinthira amatha kusintha kutengera zofunikira zosiyanasiyana pafomuyi, ndipo mitunduyi imatha kukhala yochokera pa mamasukidwe akayendedwe otsika mpaka zolimba kwambiri.

2. Kuchiritsa bwino. Sankhani mitundu yosiyanasiyana ya othandizira akuchiritsa, dongosolo la epoxy resin limatha kuchiritsidwa pamatenthedwe a 0 ~ 180 ℃.

3. Kumangiriza mwamphamvu. Magulu abwinobwino a polar hydroxyl ndi ma ether omwe amakhala munthawi yamagulu a epoxy resin amawamatira kwambiri pazinthu zosiyanasiyana. Kuchepetsa kwa epoxy resin kumakhala kotsika pochiritsa, ndipo kupsinjika kwamkati komwe kumachitika ndikochepa, komwe kumathandizanso kukulitsa mphamvu yolumikizira.

4. Kutsika pang’ono. Zomwe zimachitika pakati pa epoxy resin ndi wothandizira omwe amagwiritsidwa ntchito zimachitika ndikuwonjezera mwachindunji kapena kutsegulira mphete magulu a epoxy mu molekyulu ya utomoni, ndipo palibe madzi kapena zinthu zina zosakhazikika zomwe zimatulutsidwa. Poyerekeza ndi ma resin a polyester osakwaniritsidwa komanso ma phenolic resins, amawonetsa kuchepa kwambiri (ochepera 2%) pakachiritsa.

5. Mawotchi katundu. Makina ochiritsidwa a epoxy resin ali ndi mawonekedwe abwino kwambiri.

6. Kugwiritsa ntchito magetsi. Makina ochiritsidwa a epoxy resin ndi zinthu zabwino kwambiri zotetezera zomwe zimakhala ndi ma dielectric okwera, kutayikira kwapamwamba, komanso kukana kwa arc.

7. Kukhazikika kwamankhwala. Nthawi zambiri, dongosolo lochiritsidwa la epoxy resin limakhala ndi kukana kwa alkali kwambiri, kukana kwa asidi ndi kukana zosungunulira. Monga zinthu zina za epoxy yochiritsidwa, kukhazikika kwamankhwala kumadaliranso ndi utomoni wosankhidwa ndi wothandizira. Kusankhidwa koyenera kwa epoxy resin ndi othandizira kuchiritsa kumatha kuyipangitsa kukhala ndi bata lapadera la mankhwala.

8. Kukhazikika kokhazikika. Kuphatikiza kwa zinthu zambiri pamwambapa kumapereka epoxy resin system kukhala yolimba komanso yolimba.

9. kugonjetsedwa ndi nkhungu. Makina otetezedwa a epoxy resin amalimbana ndi nkhungu zambiri ndipo atha kugwiritsidwa ntchito m’malo otentha.

Mtundu wa mtundu

Malinga ndi mamolekyulu, ma epoxy resin amatha kugawidwa m’magulu asanu:

1. Glycidyl efa epoxy utomoni

2. Glycidyl ester epoxy utomoni

3. Glycidylamine epoxy utomoni

4. Liniya aliphatic epoxy utomoni

5. Alicyclic epoxy utomoni