Momwe mungadziwire bwino ndikusankha pakati pa PA6 ndi PA66 (Gawo 1)?

Momwe mungadziwire bwino ndikusankha pakati pa PA6 ndi PA66 (Gawo 1)?

Ndi kukula kwaukadaulo wosinthidwa wa nayiloni R&D, kuchuluka kwa PA6 ndi PA66 kwakula pang'onopang'ono. Opanga zinthu zambiri zamapulasitiki kapena ogwiritsa ntchito zinthu zapulasitiki za nayiloni sadziwa bwino za kusiyana kwa PA6 ndi PA66. Kuphatikiza apo, popeza palibe kusiyana kowonekera pakati pa PA6 ndi PA66, izi zabweretsa chisokonezo chachikulu. Kodi PA6 ndi PA66 zingasiyanitsidwe bwanji, ndipo ziyenera kusankhidwa bwanji?

Choyamba, Malangizo Ozindikiritsa PA6 ndi PA66:
Akatenthedwa, zonse za PA6 ndi PA66 zimatulutsa fungo lofanana ndi ubweya wopsereza kapena misomali. PA6 imatulutsa lawi lachikasu, pomwe PA66 imayaka ndi lawi labuluu. PA6 imakhala yolimba bwino, ndiyotsika mtengo kuposa PA66, ndipo ili ndi malo osungunuka otsika (225°C). PA66 imapereka mphamvu zapamwamba, kukana kuvala bwino, komanso malo osungunuka kwambiri (255 ° C).

Chachiwiri, Kusiyana kwa Katundu Wathupi:

• PA66:Malo osungunuka: 260-265 ° C; kutentha kwa galasi (malo owuma): 50 ° C; kachulukidwe: 1.13–1.16 g/cm³.
• PA6:Semi-transparent kapena opaque milky-white crystalline polymer pellets; malo osungunuka: 220 ° C; kutentha kwa kuwonongeka: pamwamba pa 310 ° C; kachulukidwe wachibale: 1.14; kuyamwa madzi (maola 24 m'madzi pa 23 ° C): 1.8%. Ili ndi kukana kwabwino kwa kuvala ndi kudzipaka mafuta, mphamvu zamakina apamwamba, kukana kutentha kwabwino komanso kutsekemera kwamagetsi, kutsika kwabwino kwa kutentha, kuzizimitsa zokha, komanso kukana mankhwala-makamaka kukana mafuta.

Poyerekeza ndi PA66, PA6 ndiyosavuta kuyikonza ndi kuumba, imapereka gloss yabwino kwambiri pazinthu zomalizidwa, ndipo imakhala ndi kutentha komwe kumatha kugwiritsidwa ntchito. Komabe, imakhala ndi mayamwidwe apamwamba komanso osakhazikika bwino. Ndizosalimba, zimakhala ndi malo otsika osungunuka, ndipo zimatha kugwiritsidwa ntchito kwa nthawi yaitali m'madera ovuta. Imasunga kukana kwabwino kwa kupsinjika pamitundu yosiyanasiyana ya kutentha, ndi kutentha kosalekeza kwa 105 ° C.

Chachitatu, Mungasankhe Bwanji Kugwiritsa Ntchito PA66 kapena PA6?
Kuyerekeza kwa magwiridwe antchito pakati pa PA6 ndi PA66:

• Makina amakina: PA66> PA6
• Kutentha kwamafuta: PA66> PA6
• Mtengo: PA66> PA6
• Malo osungunuka: PA66 > PA6
• Kuyamwa madzi: PA6> PA66

Chachinayi, Kusiyana kwa Ntchito:

• PA6 engineering mapulasitikikukhala ndi mphamvu zolimba kwambiri, kukana kukhudzidwa kwabwino, kukana kuvala bwino, kukana mankhwala, komanso kugundana kocheperako. Kupyolera mu zosintha monga kulimbitsa magalasi, kudzaza mchere, kapena zowonjezera zowonjezera moto, ntchito yawo yonse imatha kupitilizidwa. Amagwiritsidwa ntchito makamaka m'mafakitale amagalimoto ndi zamagetsi / zamagetsi.
• PA66ali ndi magwiridwe antchito apamwamba kwambiri, kuphatikiza mphamvu zambiri, kulimba, kukana kwamphamvu, kukana kwamafuta ndi mankhwala, kukana kuvala, komanso kudzipaka mafuta. Imapambana makamaka pakuuma, kulimba, kukana kutentha, komanso kukana kukwawa. Chifukwa cha mphamvu zake zapamwamba poyerekeza ndi PA6, PA66 imagwiritsidwa ntchito kwambiri m'mafakitale monga kupanga zingwe zamatayala.

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