- 12
- Nov
Daim ntawv thov yam ntxwv ntawm epoxy iav fiber ntau raj:
Daim ntawv thov yam ntxwv ntawm epoxy iav fiber ntau raj:
Lub epoxy iav fiber ntau raj yog ua los ntawm alkali tsis muaj hluav taws xob iav fiber ntau daim ntaub impregnated nrog epoxy resin, thiab yog ci thiab kub-pressed nyob rau hauv ib tug forming pwm. Cov pas nrig puag ncig muaj lub tshuab ua haujlwm siab. Dielectric muaj nuj nqi thiab zoo machinability. Nws tuaj yeem siv los ua cov txheej txheem insulating hauv cov khoom siv hluav taws xob, qhov chaw ntub dej thiab cov roj hloov pauv.
Epoxy iav fiber ntau raj zoo li: Qhov saum npoo yuav tsum du thiab du, tsis muaj npuas, roj thiab impurities. Cov xim tsis sib xws, khawb, me ntsis tsis sib xws thiab cov kab nrib pleb raug tso cai rau ntawm qhov kawg ntawm qhov chaw lossis ib feem ntawm epoxy iav fiber ntau yeeb nkab uas nws phab ntsa thickness tshaj 3 hli.
Daim ntawv thov yam ntxwv ntawm epoxy iav fiber ntau raj:
1. Ntau hom ntawv. Ntau yam resins, curing agents thiab modifier systems yuav luag ua tau raws li qhov yuav tsum tau muaj ntawm ntau daim ntawv thov, thiab lawv cov nplai tuaj yeem muaj los ntawm qhov tsis tshua muaj viscosity mus rau siab melting point solids.
2. Yooj yim kho. Los ntawm kev siv cov tshuaj tua kab sib txawv, epoxy resin system tuaj yeem kho tau ntawm qhov kub ntawm 0 txog 180 ° C.
3. Muaj zog adhesion. Muaj cov polar hydroxyl pawg thiab ether bonds nyob rau hauv cov saw molecular ntawm epoxy resin, uas ua rau nws muaj siab adhesion rau ntau yam khoom. Epoxy resin muaj qis qis thiab kev ntxhov siab sab hauv thaum kho, uas tseem pab txhim kho kev sib raug zoo.
4. Tsawg luv luv. Cov tshuaj tiv thaiv ntawm epoxy resin thiab curing tus neeg sawv cev yog ua los ntawm cov tshuaj tiv thaiv ncaj qha los yog lub nplhaib-qhib polymerization ntawm epoxide nyob rau hauv cov molecule resin, tsis muaj dej los yog lwm yam khoom los ntawm cov khoom tsis zoo. Piv nrog unsaturated polyester resins thiab phenolic resins, lawv pom tsawg heev shortening (tsawg dua 2%).
5. Mechanical muaj nuj nqi. Lub kho epoxy system muaj kev ua haujlwm zoo heev.