Makhalidwe Oyambira ndi Kuyambitsa kwa Polyamide Pa6

Kuyamba kwa polyamid pa6

Polyamide, yotchedwa polyamide pa mwachidule, imadziwika kuti nayiloni.Ndi mtundu wa crystalline thermoplastic pulasitiki yopangidwa ndi polymerization ya binary amines ndi diacid kapena lactam.Pali mitundu yambiri ya PA, malinga ndi kuchuluka kwa ma atomu a kaboni mu monoma yomwe imakhudzidwa ndi polymerization, ndipo mitundu yosiyanasiyana ya PA yokhala ndi machitidwe osiyanasiyana imatha kupangidwa, monga PA6, PA66, PA612, PA1010, PA11, PA12, PA46 , PA9, PA1212, etc. PA6 ndi PA66 amagwiritsidwa ntchito kwambiri, kuwerengera 90% ya zonse zomwe zimapangidwa.

Zambiri za polyamid pa6

Polyamid pa6 ili ndi polarity, yomwe ilibe poizoni, yopanda kukoma komanso yosavuta kukhala yamitundu; Mtundu wa crystalline (50 mpaka 60%), wonyezimira wamkaka wonyezimira wonyezimira kapena wachikasu wonyezimira; Madzi a Newtonian (madzi a Newtonian amatanthawuza madzi omwe kupsinjika kumakhala kolingana ndi Kachulukidwe: 1.02 mpaka 1.20g/cm³;Mayamwidwe apamwamba amadzi, hydrolysis reaction idzachitika pa 230 digiri Celsius;Kuyamwa kwamadzi PA46 > PA6 > PA66 > PA1010 > PA11 > PA12 > PA1212;Kuchepa kwakukulu kwa kufota kwa kuumba.PP, PE > PA > PS, ABS.Katundu wotchinga wapakatikati komanso chotchinga champhamvu cha mpweya.

The makina katundu wa polyamid pa6

Makina a polyamid pa6 nthawi zambiri amakhudzana ndi crystallinity: Kukwera kwa crystallinity, kumapangitsanso mphamvu komanso kulimba kwake.Pankhani ya mphamvu, PC> PA66> PA6> POM> ABS.Mphamvu imakhudzidwa kwambiri ndi hygroscopicity, kutentha kwapamwamba, kukwera kwa hygroscopicity, kutsika kwa mphamvu zowonongeka ndi zina.

Kulimba kwamphamvu kumakhudzidwa kwambiri ndi magwiridwe antchito a hygroscopic.Ndi kuwonjezeka kwa kutentha, kuyamwa kwa madzi kumawonjezeka ndipo kulimba kumawonjezeka.(Nthawi zambiri, kulimba kumakhala kowuma komanso kutentha pang'ono, ndipo kumatha kukhala ndi nkhawa yosweka ndi zinthu zachitsulo komanso kuwonongeka kwa brittle pa 0 ℃.

Polyamid pa6 ili ndi zodzikongoletsera zabwino komanso kukana kuvala bwino.

Kukana kwabwino kwa mafuta, mwachitsanzo.petulo.

Kutopa kwamphamvu ndikwambiri, nthawi zambiri 20% mpaka 30% ya mphamvu zolimba.Kutopa kwa PA6 ndi PA66 kumatha kufika pafupifupi 22MPa, yachiwiri ndi POM (35MPa) komanso yokwera kuposa PC (10-14MPa).Kutengera mphamvu ya kutopa: POM> PBT, PET> PA66> PA6> PC> PSF> PP.

Kuuma kwakukulu, PA66: 108 mpaka 120HRR;Chithunzi cha PA6120HRR.

Kukana kwa Creep: Kuposa PP ndi PE, komanso koyipa kuposa ABS ndi POM.

Kukana kupsinjika kwapang'onopang'ono: Chithandizo cha Annealing kapena humidification chiyenera kuchitidwa pambuyo pokonza zinthu.