Zinthu za utoto wa polyester wa FDY
1. Mphamvu yayikulu. Mphamvu ya ulusi waufupi ndi 2.6 ~ 5.7cN/dtex, ndipo mphamvu ya ulusi wamphamvu ndi 5.6 ~ 8.0cN/dtex. Chifukwa cha hygroscopicity yake yochepa, mphamvu yake yonyowa ndi mphamvu youma ndizofanana. Mphamvu ya impact ndi yokwera kasanu kuposa nayiloni, nthawi 20 kuposa ulusi wa viscose.
2. Good elasticity. Kutanuka kuli pafupi ndi ubweya, ndipo kumatha kubwezeretsedwanso kwathunthu pamene elongation ndi 5% ~ 6%. Crease kukana kuposa ulusi wina, ndiye kuti, nsalu si crease, wabwino dimensional bata. Zotanuka modulus ndi 22 ~ 141cN/dtex, zomwe ndi 2 ~ 3 nthawi zambiri kuposa nayiloni. Nsalu ya poliyesitala imakhala ndi mphamvu zambiri komanso zotanuka kuchira, chifukwa chake, imakhala yolimba, imalimbana ndi makwinya komanso kusita.
3. Polyester yosamva kutentha imapangidwa ndi kusungunuka kozungulira, ndipo ulusi wopangidwa ukhoza kusungunukanso ndi kutentha, womwe ndi wa thermoplastic fiber. Malo osungunuka a poliyesitala ndi okwera kwambiri, ndipo kutentha kwapadera ndi kutentha kwa matenthedwe kumakhala kochepa, kotero kukana kutentha ndi kutentha kwa polyester fiber ndipamwamba. Ndiwo ulusi wabwino kwambiri wopangira.
