Aikace-aikace na epoxy resin adhesives

Epoxy resin m(wanda ake kira epoxy adhesive ko epoxy adhesive) ya bayyana daga kimanin 1950, kawai fiye da shekaru 50. Amma tare da tsakiyar karni na 20, nau'i-nau'i iri-iri na mannewa, da kuma ilmin sunadarai na m, m rheology da m lalacewa da kuma sauran asali bincike aiki a cikin zurfin ci gaba, don haka m Properties, iri da aikace-aikace sun sami ci gaba cikin sauri. Epoxy guduro da tsarin warkarwa tare da na musamman, kyakkyawan aiki da sabon resin epoxy, sabon wakili na warkewa da ƙari suna ci gaba da fitowa, sun zama nau'in manne mai mahimmanci tare da kyakkyawan aiki, nau'ikan iri da yawa, saurin daidaitawa.
Epoxy guduro m ban da wadanda ba iyakacin duniya robobi kamar polyolefin bonding ba shi da kyau, domin da dama karfe kayan kamar aluminum, karfe, baƙin ƙarfe, jan karfe: wadanda ba karfe kayan kamar gilashin, itace, kankare, da dai sauransu. Epoxy adhesive shine tsarin manne nauyi aikace-aikacen guduro epoxy.
Rarrabewa ta yanayin warkewa
Cold curing m (ba zafi curing adhesive). Hakanan an raba shi zuwa:

• Low zazzabi curing m, curing zafin jiki <15 ℃;
• Dakin zazzabi curing m, curing zazzabi 15-40 ℃.
• Zafi curing m. Ana iya ƙarawa zuwa:
• Matsakaicin zafin jiki curing m, curing zafin jiki game da 80-120 ℃;
• Babban zafin jiki curing m, curing zafin jiki> 150 ℃.
• Sauran hanyoyin magance manne, kamar haske curing m, rigar saman da ruwa curing adhesive, latent curing m.

Epoxy adhesives suna da fa'idodi masu zuwa akan sauran nau'ikan adhesives:

1. Epoxy guduroya ƙunshi ƙungiyoyin polar iri-iri da ƙungiyar epoxy mai aiki sosai, don haka yana da ƙarfi mai ƙarfi mai ƙarfi tare da nau'ikan kayan polar iri-iri kamar ƙarfe, gilashi, siminti, itace, robobi, da sauransu, musamman waɗanda ke da babban aikin saman, kuma a lokaci guda ƙarfin haɗin gwiwa na kayan warkewa na epoxy shima yana da girma sosai, don haka ƙarfin mannewa yana da girma sosai.
2. Ainihin babu ƙananan sauye-sauyen kwayoyin halitta da aka samar lokacin da resin epoxy ya warke. Ƙarar ƙarar Layer na manne yana da ƙananan, kimanin 1% zuwa 2%, wanda shine ɗayan nau'in da ke da mafi ƙanƙanci na curing shrinkage a cikin resins na thermosetting. Bayan ƙara filler za a iya rage zuwa ƙasa 0.2%. Ƙididdigar faɗaɗa layin layi na kayan warkewar epoxy shima ƙanƙanta ne. Sabili da haka, damuwa na ciki yana da ƙananan, kuma yana da ƙananan tasiri akan ƙarfin haɗin gwiwa. Bugu da ƙari, ɓarna na kayan warkarwa na epoxy ƙananan ƙananan ne, don haka kwanciyar hankali na manne Layer yana da kyau.
3. Akwai da yawa iri na epoxy resins, curing jamiái da gyare-gyare, wanda za a iya a hankali da kuma basira tsara don yin m tare da ake bukata processability (kamar sauri curing, dakin zafin jiki curing, low zafin jiki curing, curing a cikin ruwa, low- danko, high danko, da dai sauransu), kuma tare da da ake bukata amfani da yi (kamar - juriya ga high zafin jiki, high ƙarfi, high ƙarfi, high ƙarfi, high ƙarfi, high ƙarfi, low zafin jiki, high ƙarfi, high ƙarfi, high ƙarfi, low zafin jiki, da dai sauransu). juriya na tsufa, haɓakar wutar lantarki, magnetic conductivity, thermal conductivity, da dai sauransu).
4. Tare da nau'o'in nau'in kwayoyin halitta (monomer, resin, rubber) da abubuwan da ba su da kyau (irin su filler, da dai sauransu) suna da dacewa mai kyau da kuma reactivity, mai sauƙi ga copolymerization, crosslinking, blending, cikawa da sauran gyare-gyare don inganta aikin Layer na m.
5. Kyakkyawan juriya na lalata da kaddarorin dielectric. Resistance zuwa acid, alkali, gishiri, kaushi da sauran kafofin watsa labarai lalata. Adadin juriya 1013-1016Ω-cm, ƙarfin dielectric 16-35kV/mm.
6. Babban manufar epoxy resins, magunguna masu warkarwa da ƙari suna da asali da yawa, babban samarwa, mai sauƙin tsarawa, na iya zama gyare-gyaren lamba, ana iya amfani da shi akan babban sikelin.

Yadda za a zaɓaepoxy guduro

Lokacin zabar resin epoxy, akwai abubuwa da yawa da za a yi la'akari da su, gami da:

1. Amfani: Za a iya amfani da epoxy don manufa ta gaba ɗaya ko ƙarin aikace-aikacen masana'antu?
2. Rayuwar Aiki: Yaya tsawon lokacin da ake buƙatar amfani da epoxy kafin warkewa?
3. Lokacin Cure: Yaya tsawon lokacin samfurin ya warke kuma ya warke gabaɗaya ta amfani da epoxy?
4. Zazzabi: A wane zafin jiki sashin zai yi aiki? Idan ana son halayen, shin an gwada epoxy ɗin da aka zaɓa don matsanancin zafin jiki?

Halaye:

• High thixotropic Properties, za a iya amfani da facade gina.
• Babban halayen aminci na muhalli (tsarin warkarwa mara ƙarfi).
• Babban sassauci.
• Ƙarfin haɗin gwiwa.
• Babban rufin lantarki.
• Kyawawan kaddarorin inji.
• Kyakkyawan zafin jiki da juriya na ruwa.
• Kyakkyawan kwanciyar hankali na ajiya, lokacin ajiya har zuwa shekara 1.

Aikace-aikace:Domin bonding na daban-daban karafa da wadanda ba karafa, kamar maganadiso, aluminum gami, firikwensin, da dai sauransu.