Kushandisa zvinonamira zve epoxy resin

Namira ye epoxy resin(inonzi epoxy adhesive kana epoxy adhesive) yakaonekwa kubva munenge muna 1950, makore anopfuura makumi mashanu chete. Asi nepakati pezana remakore rechi20, dzidziso dzakasiyana-siyana dze adhesive, pamwe ne adhesive chemistry, adhesive rheology uye adhesive damage mechanism nedzimwe tsvakurudzo dzakadzama dzakafambira mberi, zvekuti hunhu hwe adhesive, mhando uye mashandisirwo azvo zvakafambira mberi nekukurumidza. Epoxy resin uye sisitimu yayo yekurapa ine mashandiro ayo akasiyana, akanaka uye epoxy resin itsva, mushonga mutsva wekuporesa uye zvimwe zvinowedzera zvinoramba zvichibuda, zvinova boka re adhesives dzakakosha dzine mashandiro akanaka, mhando dzakawanda, uye dzinochinjika zvakanyanya.
Kunamira kwe epoxy resin pamusoro pemapurasitiki asiri epolar akadai se polyolefin bonding hakuna kunaka, kune zvinhu zvakasiyana-siyana zvesimbi zvakaita se aruminiyamu, simbi, simbi, mhangura: zvinhu zvisiri zvesimbi zvakaita segirazi, huni, kongiri, nezvimwewo: pamwe chete nemapurasitiki ethermosetting akadai se phenolics, aminos, unsaturated polyester, nezvimwewo zvine hunhu hwakanaka hwekunamira, saka kune kunamira kwepasi rose kunozivikanwa se. Kunamira kwe epoxy imhando yekunamira inorema epoxy resin inoshandiswa.
Kupatsanurwa zvichienderana nemamiriro ekurapa
Chinonamira chinonamira chinotonhora (chinonamira chisina kupisa). Chakakamurwawo kuita:

• Gundi rinonamira rinopisa tembiricha yakaderera, tembiricha inochenesa <15 ℃;
• Tembiricha yemukamuri inonamira kunamira, tembiricha yekupisa iri 15-40 ℃.
• Chinonamira chinonamira kupisa. Chinogona kukamurwazve kuita:
• Gundi rinonamira rinopisa tembiricha iri pakati nepakati, tembiricha rinopisa rinenge 80-120 ℃;
• Gundi rinonamira rinopisa zvakanyanya, rinopisa kupfuura 150 ℃.
• Dzimwe nzira dzekugadzirisa namati, dzakadai se namati inonamira zvishoma, namati inonamira pamusoro pemvura yakanyorova, namati inonamira yakavharika.

Zvinonamira zveEpoxy zvine zvakanakira zvinotevera pamusoro pemamwe marudzi ezvinonamira:

1. Resin ye epoxyine mhando dzakasiyana dzemapoka epolar uye epoxy inoshanda zvikuru, saka ine simba rakasimba rekunamira rine mhando dzakasiyana dzezvinhu zvepolar zvakaita sesimbi, girazi, simende, huni, mapurasitiki, nezvimwewo, kunyanya izvo zvine basa guru pamusoro, uye panguva imwe chete simba rakabatana rezvinhu zvakagadziriswa ne epoxy rakakurawo zvikuru, saka simba rayo rekunamira rakakwirira kwazvo.
2. Hapana mamorekuru mashoma anogadzirwa kana epoxy resin yagadziriswa. Kudzikira kwehuwandu hweadhesive layer kudiki, kungangoita 1% kusvika 2%, inova imwe yemhando dzine curvature shrinkage diki mu thermosetting resins. Mushure mekuwedzera filler inogona kuderedzwa kusvika pasi pe 0.2%. Coefficient yekuwedzera kwe epoxy cured material idikiwo. Saka, kushushikana kwemukati kudiki, uye hakuna zvakunokanganisa pakusimba kwe bonding. Pamusoro pezvo, kuyerera kwe epoxy cured material kudiki, saka dimensional stability yeadhesive layer yakanaka.
3. Kune mhando dzakawanda dze epoxy resins, curing agents uye modifiers, dzinogona kugadzirwa zvine hungwaru uye neunyanzvi kuti glue iyi ikwanise kugadziriswa (senge kukurumidza kugadzika, kupisa tembiricha yemumba, kupisa tembiricha yakaderera, kupisa mumvura, kusviba kwakaderera, kusviba kwakakwira, nezvimwewo), uye nekushandiswa kwekushanda kunodiwa (senge kuramba tembiricha yakakwira, tembiricha yakaderera, simba rakakwirira, kuchinjika kwakakwirira, kuramba kukwegura, kufambiswa kwemagetsi, magnetic conductivity, thermal conductivity, nezvimwewo).
4. Nemhando dzakasiyana dzezvinhu zvipenyu (monomer, resin, rabha) uye zvinhu zvisina organic (zvakadai sefillers, nezvimwewo), zvine hukama hwakanaka uye reactivity, zviri nyore kupolymerization, crosslinking, blending, filling uye zvimwe zvigadziriso kuti zvivandudze mashandiro e namatidza layer.
5. Kuramba ngura kwakanaka uye hunhu hwakanaka hwe dielectric. Kuramba ngura ne acid, alkali, munyu, solvents nezvimwe zvinhu. Kuramba ngura kwevhoriyamu 1013-1016Ω-cm, simba re dielectric 16-35kV/mm.
6. Maresin epoxy anoshanda zvakanyanya, zvinogadzirisa kupisa uye zvinowedzera zvine mavambo akawanda, kugadzirwa kukuru, kuri nyore kugadzira, zvinogona kuumbwa nekumanikidzwa kwekubatana, zvinogona kushandiswa pahuwandu hwakawanda.

Maitiro ekusarudzaepoxy resin

Pakusarudza epoxy resin, pane zvinhu zvakawanda zvekufunga nezvazvo, zvinosanganisira:

1. Mashandisirwo: Epoxy inogona kushandiswa pabasa rakawanda here kana kushandiswa mumaindasitiri?
2. Nguva yekushanda: Epoxy inofanira kushandiswa kwenguva yakareba sei isati yaoma?
3. Nguva Yokurapa: Zvinotora nguva yakareba sei kuti chigadzirwa chirapwe uye chinyatsoporeswa uchishandisa epoxy?
4. Tembiricha: Chikamu ichi chichashanda patembiricha yakadii? Kana hunhu hwacho huchidikanwa, epoxy yakasarudzwa yakaedzwa here kuti ione kana tembiricha yacho yakakwira zvakanyanya?

Hunhu:

• Hunhu hwepamusoro hwethixotropic, hunogona kushandiswa pakuvaka façade.
• Hunhu hwepamusoro hwekuchengetedzwa kwezvakatipoteredza (sisitimu yekurapa isina solvent).
• Kuchinjika kwakanyanya.
• Simba guru rekubatanidza.
• Kudzivirira kwemagetsi kwakanyanya.
• Hunhu hwakanaka kwazvo hwemakanika.
• Kudzivirira tembiricha uye mvura zvakanyanya.
• Kugadzikana kwakanaka kwekuchengetedza, nguva yekuchengetedza inosvika gore rimwe.

Kushandiswa:Kubatanidza simbi dzakasiyana-siyana nedzisiri simbi, dzakadai semagineti, aruminiyamu, masensa, nezvimwewo.