Ndezvipi zvinhu zviri fr4 epoxy girazi fiber bhodhi

Chii chinonzi fr4 epoxy girazi fiber bhodhi? Chii zvinhu zviri epoxy nebwe bhodhi? Zvirinani kushandisa zvinotevera zvinhu:

A. Iyo epoxy resin, iyo inoreva kune iro zita rizere remapolymers ane epoxy mapoka. Inonyanya kukodzera midhiya ine zvishoma zvinokanganisa zvinhu. Iyo ine yakatanhamara alkali kuramba uye inogona kudzivisa kuora kweakawandisa acids (kunze kwehydrofluoric acid). Iko kudiwa kwe epoxy resin mumusika wegorosi kwakadzikiswa zvakanyanya. Chikonzero chikuru ndechekuti iwo asina kunyorwa polyester resin mumaronda asingagadzike ngura akagadzira nekukurumidza uye kune mhando zhinji. Musika wepamba une kunonoka kutanga kweasaturated polyester resin, saka epoxy resini Iyo ichiri imwe yemhando huru dzemaburi mumunda weanti-corrosion. Huru hunhu hweepoxy resin yakakwira simba rekubatanidza, yakaderera shrinkage, yakakwira chigadzirwa brittleness, uye yakakwira mutengo. Iko tembiricha yekushandisa yeresini yakaporeswa mukamuri tembiricha haingapfuuri 80 ° C;

B. Ndiyo inorapa mumiririri we fr4 epoxy girazi fiber bhodhi) epoxy resin. Kune akatiwandei amines, acid anhydrides, resin makomputa zvichingodaro. Pakati pavo, amine compounds ndiyo inonyanya kushandiswa. Vanogona kukamurwa kuva mafuta amines, anonhuwirira amines uye dzakachinjwa amines. Mhando dzinoverengeka dzeamini, senge ethylenediamine, m-phenylenediamine, xylylenediamine, polyamide, diethylenetriamine nemamwe makomputa, ane chepfu uye anonhuwirira, saka ari kushandiswa zvishoma nezvishoma neasina-chepfu uye ane chepfu-ane hutsva mishonga yekurapa (Senge: T31 , 590, C20, nezvimwewo) pachinzvimbo, rudzi urwu rwekurapa mumiririri runogona kurapwa kunyange pasi pemvura pane yakanyorova hwaro, saka vanhu vari kubhadhara zvakanyanya uye nekurumbidza;

C. Iyo fr4 epoxy girazi fiberboard inodonhedza. Iyo epoxy resin inowanzo sanganiswa neasinga shande diluents senge ethanol, acetone, benzene, toluene, xylene, nezvimwe. Iwo maviri asingashande diluents anogona kusanganiswa uye kushandiswa, dzimwe nguva kuitira kudzora kurapa Reactive diluents senge propylene oxide butyl ether, propylene oxide phenyl ether, polyglycidyl ether, nezvimwewo zvinoshandiswa kune shrinkage yechigadzirwa chakapedzwa, kudzora pores uye kutsemuka;

D.Iye plasticizer uye inosimbisa mumiriri wefr4 epoxy girazi fiberboard. Iyo yakapusa epoxy resin inowedzera kupwanya mushure mekurapa, uye ine hurombo hwehukama kuomarara, kukotama simba uye kupisa kupisa. Maplasticizers uye tougheners anowanzo shandiswa kugadzira Resin inowedzera mapurasitiki, inovandudza kuomarara, inowedzera kukotama simba uye kukanganisa kuomarara;

E. Icho chinozadza, hupfu, huwandu hwakanaka, huwandu hwakawanda, uye magirazi echando pamwe chete anonzi mafirita. Kuwedzera mafirita akakodzera kunogona kudzikisa mutengo wechigadzirwa uye nekuvandudza mashandiro acho. Huwandu hwekuzadza muglue inowanzo kuvezwa Iyo huwandu hwe20-40% (huremu), iyo huwandu inogona kuve yakawanda kana uchigadzirira putty, kazhinji inogona kuve ka2 kana kanokwana ka4 huwandu hwesinasi, anowanzo shandiswa mapoda iquartz upfu, porcelain upfu, kuwedzera kune graphite powder, inopenya green green powder, talcum powder, mica powder, nezvimwe.