Wakadzidziswa sei kusarudza mushonga we epoxy resin?

Epoxy curing agent chinhu chinoshandiswa kurapamaresini epoxynekuita makemikari nemapoka epoxy ari mu epoxy resin kuti vagadzire chimiro chakabatana, zvichiita kuti epoxy resin ive chinhu chakasimba uye chinogara kwenguva refu.
Basa guru re epoxy curing agents nderekuwedzera kuomarara, kuramba kukwesha, uye kuramba makemikari kwema epoxy resins, zvichiita kuti ave chinhu chinogara kwenguva refu uye chakasimba, icho chiri chikamu chakakosha che epoxy pultruded composites. Chinyorwa chino chinopa nzira yekusarudza epoxy-curing agent yakakodzera zvichienderana nezvinhu zvakasiyana:
Zvichienderana nemamiriro ekurapa
- Kurapa patembiricha yemumba: Kana kuchidikanwa kupora nekukurumidza patembiricha yemumba, mishonga inorapa yealiphatic amine yakaita seethylenediamine nediethylenetriamine inogona kusarudzwa; kana kumhanya kwekupisa kusingadiwi kuti kuve kwakanyanya, uye kutarisa panguva yekushanda, mishonga inorapa yepolyamide inogona kusarudzwa.
- Kupisa kupisa: Kuti pave nekupisa kwakanyanya uye hunhu hwemakanika, mishonga inonhuhwirira yeamine, yakaita sediaminodiphenylsulfone (DDS), nezvimwewo, inogona kushandiswa; kuti pave nekupisa nekukurumidza kushoma, mishonga inogadziriswa yeamine ine zvinokurumidzisa inogona kufungwa nezvayo.
- Kuchenesa pasi pemamiriro ezvinhu akakosha: pakuchenesa munzvimbo ine hunyoro, mushonga wekupisa wakanyorova unogona kusarudzwa; pahurongwa hwekupisa hwakareruka, mushonga wekupisa une photoinitiator uye epoxy acrylate unogona kusarudzwa.
Zvichienderana nezvinodiwa pakuita basa
- Hunhu hwemakanika: kana zvichidikanwa kuomarara kwakanyanya uye simba rakawanda, mishonga inoporesa anhydride inogona kusarudzwa; kana zvichidikanwa kuchinjika kwakanaka uye kuramba kukanganiswa, mishonga inoporesa yakasimba senge polysulfide rabha ndiyo yakakodzera.
- Kusagona kushandisa makemikari: zvinodiwa zvakanyanya mukusagona kushandisa acid, alkali, uye solvent,resin yephenolicmushonga unorapa kana imwe mushonga unorapa une amine yakagadziriswa ndiyo yakakodzera.
- Kudzivirira kupisa: Kune nzvimbo dzinopisa zvakanyanya, dzakadai sedziri pamusoro pe200℃, chinhu chinopisira silicone kana chinhu chinopisira chine chimiro chepolyaromatic chinogona kufungwa nezvacho.
Zvichienderana nenzvimbo yekushandisa
- Nzvimbo yemukati: zvinodiwa zvakanyanya zvekuchengetedza nharaunda, mushonga we epoxy unoshanda mumvura kana mushonga we aliphatic amine unodziya zvishoma wakakodzera.
- Nzvimbo yekunze: kusimba kwemamiriro ekunze kwakanaka kunodiwa, mishonga inorapa alicyclic amine ine kusimba kweUV yakanaka ndiyo yakakodzera.
- Nzvimbo dzakakosha: Munzvimbo dzine zvinodiwa zvehutsanana hwakanyanya senge chikafu nemishonga, zvinhu zvisingakuvadzi kana kuti zvisina huturu hwakanyanya zvakaita sezvinhu zvinodzivirira kuchengetedzeka kwechikafu zvine certification ye polyamide zvinofanirwa kusarudzwa.
Funga nezvezvinodiwa pakuita
- Nguva yekushanda: Kwenguva yakareba yekushanda, sarudza mushonga wekuporesa wakavanzika, wakadai se dicyandiamide, nezvimwewo. Kwenguva pfupi yekushanda uye yekuporesa, sarudza mushonga wekuporesa we aliphatic amine unokurumidza kupora.
- Chitarisiko Chekupora: Kuti chitarisiko chekuporesa chisaonekwe chisina ruvara uye chakajeka, sarudza mishonga inoporesa amine ine alicyclic, nezvimwewo. Kana uchida mavara mashoma, sarudza mishonga inoporesa amine ine mutengo wakaderera.
Zvakabatanidzwa nemutengo wezvinhu
- Pachishandiswa pfungwa yekuzadzisa zvinodiwa pakushanda, enzanisa mutengo uye chiyero chemishonga yakasiyana-siyana inorapa. Mutengo wemishonga inorapa inokonzerwa neamine wakaderera, nepo mimwe mishonga inorapa inoshanda zvakanyanya yakadai semishonga ine fluorine nesilicone inorapa inodhura.