UV ikiza

Gukiza UV ni ultraviolet ikiza, UV ni impfunyapfunyo ya ultraviolet UV imirasire ultraviolet, gukira bivuga inzira yo guhindura ibintu kuva kuri molekile nkeya bikagera kuri polymers. Gukiza UV muri rusange bivuga uburyo bwo gukiza cyangwa ibisabwa byo gutwikisha (amarangi), wino, ibifunga (kole) cyangwa ibindi bifunga inkono bigomba gukizwa n’umucyo ultraviolet, bitandukanye no gukiza ubushyuhe, gukiza imiti (imiti ikiza), gukiza bisanzwe, nibindi

Mu rwego rwa polymers ya chimique, UV nayo ikoreshwa nkincamake yo gukiza imirasire, UV, ni ukuvuga gukiza UV ultraviolet, ni ugukoresha UV ultraviolet urumuri ruciriritse kandi rugufi (300-800 nm) munsi yimirasire ya UV, amazi ya UV ibikoresho biri muri fotoinitiator byashishikarije radicals cyangwa cations kubuntu, bityo bigatera ibikoresho bya polymer (resin) birimo amatsinda akora polymerisime ikora firime idashobora gushonga kandi idashonga, ni tekinolojiya mishya yo kurengera ibidukikije no kwangiza imyuka ya VOC igaragara muri 60. yo mu kinyejana cya 20. Nyuma ya za 80 zo mu kinyejana cya 20, Ubushinwa bwateye imbere byihuse.

Oligomers ifite ubukonje bwinshi, kandi kugirango byoroherezwe kubaka no kunoza umuvuduko wo gukira wo guhuza, ni ngombwa kongeramo monomeri nkibintu byoroshye kugirango uhindure imvugo ya resin. Imiterere ya diluent reaction ifite uruhare runini kumiterere ya firime ya nyuma yo gutwikira nko gutembera, kunyerera, guhindagurika, kubyimba, kugabanuka, gufatira hamwe no kwimuka muri firime. Imikorere idahwitse irashobora kuba imwe cyangwa imikorere myinshi, iyanyuma ikaba nziza kuko itezimbere guhuza gukira. Imikorere isabwa kugirango igaragaze neza ni, ubushobozi bwo guhindagurika, kwikemurira, impumuro, ubushobozi bwo kugabanya ubukonje bwikigereranyo, guhindagurika, imikorere, guhagarika umutima, kugabanuka mugihe cya polymerisiyasi, ubushyuhe bwikirahure (Tg) bwa homopolymer, bigira ingaruka muri rusange gukiza umuvuduko n'uburozi. Monomer yakoreshejwe igomba kuba monomer irakaza uruhu kandi agaciro kayo ntikarenza 3 nkuko byagenwe na Draize. Monomer isanzwe ikoreshwa nka diluent reaction ni tripropylene glycol diacrylate (TPGDA).

Polimerisiyasi yihuse ikoreshwa muburyo bwa chimique yo gukiza UV mubyukuri bigerwaho mugutanga ibisubizo byubusa muburyo bukwiye bwo gufotora hamwe na / cyangwa gufotora no kumurika cyane. Photoinitiator itanga radicals yubuntu hamwe nabahuza cationic barashobora gukoreshwa. Nyamara, mu nganda zubu, iyambere ikunze kuba ibara (ni ukuvuga ifoto yerekana ifoto ishobora kubyara radicals yubuntu).

Kugeza ubu, uburebure bwa ultraviolet bukoreshwa cyane ni 365nm, 253.7nm, 185nm, nibindi. Imbaraga z'itara zikoreshwa muri rusange zirenga 1000W, ukoresheje ultraviolet UVA UVC, nibindi, muri byo UVC ikoresha amatara menshi ya amalgam.