Crystallization ndi Katundu wa Semi-Aromatic Copolymer Nylon/PA66

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Pofuna kuphunzira khalidwe la crystallization ndi katundu wa PA66 kusinthidwa ndi mitundu yosiyanasiyana ya theka-onunkhira nayiloni utomoni copolymerized, mitundu yosiyanasiyana ya theka-onunkhira copolymerized nayiloni utomoni anawonjezedwa PA66 utomoni, ndi zotsatira za mitundu yosiyanasiyana ndi nkhani za theka-onunkhira nayiloni. copolymerized nayiloni utomoni pa khalidwe crystallization ndi katundu wa aloyi zipangizo anaphunzira.Zotsatira zikuwonetsa kuti mitundu yosiyanasiyana ya utomoni wa nayiloni wonunkhira bwino wokhala ndi fungo la nayiloni uli ndi machitidwe osiyanasiyana owoneka bwino komanso zopezeka bwino pazophatikizika.Ndi kuchuluka kwa poly-m-xylyleneadipamide (MXD6) okhutira, kutentha kusungunuka (T)m) ndi kutentha kwa crystallization (Tc) pakuchepa kwa kuphatikizikako, kulimba ndi kusinthika kwamafuta akuphatikiza, kulimba kwa mc ndi kuyamwa kwamadzi kumachepa, ndipo kachulukidwe kamakhala ndi zotsatira zochepa.Pamene kuchuluka kwa polyphthalamide (PA6T/6) kumakhala kwakukulu kuposa kapena kofanana ndi 40% ya chigawo cha utomoni, khalidwe la crystallization la osakaniza limayamba kusintha kwambiri, kusinthasintha ndi kutentha kwa kusakanikirana kumawonjezeka, ndipo kulimba kumakula. kuchepetsedwa.Ndi kuchuluka kwa zinthu za PA6T / 6, kuyamwa kwamadzi kwa kuphatikizikako kumachepetsa, ndipo kachulukidwe kake kamakhala ndi zotsatira zochepa.Pamene kuchuluka kwa poly(p-phenyl-pentadiamine) (PA5T) kumakhala kwakukulu kuposa kapena kofanana ndi 30% ya gawo la utomoni, PA5T imayamba kugwira nawo ntchito yosakanikirana, kulimba kumachepetsedwa, kuyamwa kwamadzi kumachepetsedwa.Mayamwidwe amadzi osakanikirana amayamba kuchepa kenako amawonjezeka ndi kuchuluka kwa zinthu za PA5T, ndipo kuchuluka kwa PA5T sikukhala ndi zotsatira zochepa pakuchulukira kwake.Pamene kuchuluka kwa polydecamethylene terephthalate (PA10T) ndi osachepera 40% ya chigawo cha utomoni, Tm ndi Tc Kuphatikizikako kumachepa pang'onopang'ono, kulimba ndi kusinthika kwamafuta mc kwa kuphatikiza kumakulitsidwa, ndipo kulimba kumachepa.Mayamwidwe am'madzi ophatikizawo amachepetsa ndi kuchuluka kwa PA10T.Zikachulukitsidwa mpaka 50% ya gawo la utomoni, kuyamwa kwamadzi sikuchepetsedwanso, ndipo kulimba ndi kusinthika kwamafuta sikulinso.

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Nthawi yotumiza: Jan-16-2024