TPU y'uruhererekane rwa aliphatic

TPU za Aliphatic ni ubwoko bwihariye bwa polyurethane ikoze muri thermoplastic igaragaza ubudahangarwa bwinshi bwa UV, bigatuma zikoreshwa hanze aho kwibasirwa n'izuba igihe kirekire ari ikibazo.
Dukurikije imiterere y’ibinyabutabire by’ibinyabutabire bya diisocyanate, TPU ishobora kugabanywamo amatsinda aromatike n’aya alifatike. Aromatike ni yo TPU ikunze gukoreshwa cyane (idahangana n’umuhondo cyangwa ingaruka z’umuhondo ni mbi, ntabwo ari urwego rw’ibiribwa), alifatike muri rusange ikoreshwa mu gukora ibintu byinshi byiza. Ingero zirimo ibikoresho byo kwa muganga, ibikoresho bisaba ubudahangarwa buhoraho bw’umuhondo, nibindi.
Aliphatic kandi igabanyijemo polyester/polyether.
Ishyirwa mu byiciro ry’ubudahangarwa bw’umuhondo: Muri rusange rigereranywa n’ikarita y’imvi, rigabanyijemo ingero 1-5. Nyuma yo gusuzuma ubudahangarwa bw’umuhondo nka Suntest, QUV cyangwa ikindi kizamini cyo kwibasirwa n’izuba, gereranya impinduka z’ibara ry’icyitegererezo mbere na nyuma y’ikizamini, amanota meza ni 5, bivuze ko nta mpinduka z’ibara. 3 Ibi bikurikira ni ihinduka ry’ibara rigaragara. Muri rusange, 4-5, ni ukuvuga ihinduka ry’ibara gato, ryahuye n’ikoreshwa rya TPU nyinshi. Niba udakeneye ihinduka ry’ibara na gato, muri rusange ugomba gukoresha TPU ya aliphatic, ni ukuvuga, icyo bita TPU idahinduka y’umuhondo, substrate ntabwo ari MDI, muri rusange HDI cyangwa H12MDI, nibindi, kandi ikizamini cya UV cy’igihe kirekire ntikizahindura ibara.