Iwe unoziva akati wandei maitiro epoxy girazi fiber pombi?

Iyo epoxy girazi faibha chubhu inogadzirwa nemagetsi alkali-isina girazi faibha jira rakaiswa epoxy resin, yakabikwa, uye yakagadziriswa nekupisa kudzvanya mukugadzira mold. Chikamu chemuchinjikwa itsvimbo yakatenderera. Iyo girazi jira tsvimbo ine yakakwirira mechanical properties. Pamusoro peiyo epoxy girazi fiber chubhu inofanirwa kuve yakatsetseka pasina chero mabhuru, mavara emafuta uye tsvina. Rudzi rusina kuenzana, kukwesha zvishoma, nezvimwe zvese zviri mukati mechikamu chinotenderwa. Epoxy fiberglass mapaipi anoshandiswa kune zvikamu zvekuvharisa chimiro mumidziyo yemagetsi, humid nharaunda mamiriro uye transformer mafuta.

Hunhu hwe epoxy girazi faibha mapaipi akakura, uye chiyero chekushandisa chakakura, uye mafomu akasiyana. Iyo resin, inorapa mumiririri, uye inogadzirisa sisitimu inogona kuenderana nezvinodiwa zveakasiyana mashandisirwo pafomu, uye huwandu hunogona kubva kubva zvakanyanya kuderera viscosity kusvika kune yakakwirira melting point solids. Chechipiri, kurapa kuri nyore kwazvo. Sarudza zvakasiyana-siyana zvakasiyana-siyana zvinorapa, uye epoxy resin system inogona kurapwa patembiricha ye0-180°C.

Chinhu chimwe chandinofanira kutaura ndechekuti ine kunamatira kwakasimba. Kune polar hydroxyl mapoka uye ether zvisungo mune molecular cheni ye epoxy resin, iyo inoita kuti ive nekunamatira kwakanyanya kune zvakasiyana zvinhu. Iyo shrinkage ye epoxy resin yakaderera kana ichirapa, uye kushushikana kwemukati kunogadzirwa kudiki, izvo zvinobatsirawo kuvandudza kusimba kwekunamatira. Iyo ine zvakare yakaderera shrinkage. Kuita pakati peepoxy resin uye kurapa mumiririri kunoitwa nekunangana kwekuwedzera maitiro kana mhete-kuvhura polymerization maitiro eepoxy mapoka mune resin molecule, uye hapana mvura kana zvimwe zvinoputika by-zvigadzirwa zvinoburitswa. Zvinoenderana nedata rakakodzera, zvichienzaniswa neunsaturated polyester resin uye phenolic resin, iyo shrinkage panguva yekurapa yakadzikira zvakanyanya, ingangoita 2%. .