Iko epoxy girazi fiber tsvimbo ine chepfu here?

Epoxy resin uye epoxy resin zvinonamatira hazvina chepfu, asi nekuda kwekuwedzera kwezvinyoro uye zvimwe zvinhu zvine chepfu mukugadzirira, akawanda epoxy resin saka “ane chepfu”. Mumakore achangopfuura, indasitiri epoxy resin indasitiri iri kutora mvura-based modification kudzivirira Kuwedzera uye dzimwe nzira dzekuchengetedza iyo “isiri-chepfu” hunhu hweepoxy resin. Parizvino, yakawanda epoxy resin yekupfeka ndeye solvent-based coatings, ayo ane huwandu hwakawanda hweakachinjika makemikari makemikari (VOC), ayo ane chepfu uye anopisa, zvichikonzera kukuvadza kune zvakatipoteredza nemuviri wemunhu.

Epoxy resin inowanzo shandiswa pamwechete nezvokuwedzera kuti uwane kukosha kwekushandisa. Wedzerai zvinogona kusarudzwa zvinoenderana nezvinangwa zvakasiyana. Zvinowanzo shandiswa zvinowedzerwa zvinosanganisira zvinotevera zvikamu: (1) kurapa mumiriri; (2) chinja; (3) kuzadza; (4) kudzora; vamwe.

Iko epoxy girazi fiber tsvimbo ine chepfu here? Pakati pavo, anorapa mumiriri ndeye * yekuwedzera. Kunyangwe ichishandiswa sekunamira, kupfeka, kana kukanda, inofanirwa kuwedzerwa neanorapa, zvikasadaro iyo epoxy resin haigone kurapwa. Epoxy resins kazhinji inoreva kune organic organic polymer makomputa ane maviri kana anopfuura epoxy mapoka mumorekuru. Kunze kweavo vashoma, avo mashoma hama mamorekuru haana kukwirira. Iyo mamorekuru mamiriro epoxy resin inoratidzirwa neiyo inoshanda epoxy boka muketani yemakemikari. Epoxy boka rinogona kuwanikwa pamagumo, pakati kana mune cyclic chimiro cheiyo molecheni cheni. Nekuti iyo mamorekuru chimiro chine anoshanda epoxy mapoka, ivo vanogona kupinda muchinjika-unobatanidza maitiro nemhando dzakasiyana siyana dzekurapa vamiririri kuti vagadzire asingasviki uye asingachinjiki ma polymers ane matatu-nzira network dhizaini.

Iko kuita uye hunhu hwe epoxy resin

1. Mhando dzakasiyana. Mhando dzakasiyana dzeinsheni, dzinorapa vamiririri, uye modifier masisitimu anogona kunge anoenderana nezvinodiwa zvekushandisa kwakasiyana pafomu, uye huwandu hunogona kunge huchibva kune yakaderera viscosity kusvika kumusoro kwakanyunguduka nzvimbo dzakasimba.

2.Kurapa kuri nyore. Sarudza akasiyana akasiyana ekurapa vamiririri, iyo epoxy nebwe system inogona kupora mune yekushisa renji ye0 ~ 180 ℃.

3. Kubatisisa kwakasimba. Iwo epakutanga polar hydroxyl mapoka uye ether zvisungo mumoleketani cheni ye epoxy resins inoita kuti inyatsoomerera kune akasiyana zvinhu. Iyo shrinkage ye epoxy resin yakaderera pakurapa, uye kunetsekana kwemukati kunogadzirwa idiki, iyo inobatsirawo kugadzirisa simba rekunamatira.

4. Yakaderera shrinkage. Mhinduro pakati pe epoxy resin uye iyo inorapa mumiririri inoshandiswa inoitwa nekuwedzera kuwedzera kuita kana kuvhurira-kuvhura polymerization maitiro emapoka epoxy mune resini morekuru, uye hapana mvura kana zvimwe zvisina kugadzikana nezvigadzirwa zvinoburitswa. Zvichienzaniswa neasaturated polyester resin uye phenolic resins, ivo vanoratidza yakaderera kwazvo shrinkage (isingasviki 2%) panguva yekurapa.

5. Zvokuimba. Iyo yakaporeswa epoxy resin system ine yakanakisa michina zvivakwa.

6, magetsi kuita. Iyo yakaporeswa epoxy resin system inoyevedza insulating zvinhu neakakwira dielectric zvivakwa, pamusoro leakage kuramba, uye arc kuramba.

7. Kugadzikana kwemakemikari. Kazhinji, iyo yakaporeswa epoxy nebwe system ine yakanakisa alkali kuramba, acid nemishonga uye solvent kuramba. Kunge zvimwe zvimiro zveiyo yakaporeswa epoxy system, iko kugadzikana kwemakemikari kunoenderana nesarudzo yakasarudzwa uye inorapa mumiririri. Sarudzo yakakodzera ye epoxy resin uye inorapa mumiririri inogona kuita kuti ive neakasarudzika makemikari kugadzikana.

8. Chimiro chakadzikama. Iko kusanganiswa kwezvakawanda zvezvinhu zviri pamusoro apa kunopa iyo epoxy resin system yakatanhamara kuenzana kugadzikana uye kusimba.

9, chakuvhuvhu nemishonga. Iyo yakaporeswa epoxy resin system inopokana neakawanda mafuru uye inogona kushandiswa munzvimbo dzakashata dzinopisa.