Gabatarwar polyamid pa6
Polyamide, wanda ake magana da shi azaman polyamide pa a takaice, ana kiransa nailan.Wani nau'i ne na filastik thermoplastic crystalline wanda aka samar ta hanyar polymerization na amines binary da diacid ko lactam.Akwai nau'ikan PA da yawa, gwargwadon adadin atom ɗin carbon a cikin monomer da ke cikin halayen polymerization, kuma ana iya ƙirƙirar nau'ikan PA daban-daban tare da wasan kwaikwayo daban-daban, kamar PA6, PA66, PA612, PA1010, PA11, PA12, PA46. , PA9, PA1212, da dai sauransu PA6 da PA66 galibi ana amfani da su, suna lissafin 90% na jimlar samarwa.
Babban kaddarorin polyamid pa6
Polyamid pa6 yana da polarity, wanda ba mai guba bane, maras ɗanɗano kuma mai sauƙin canza launin; Nau'in crystalline (50 zuwa 60%), farar fata mai launin shuɗi ko launin rawaya mai haske; Ruwan Newtonian (ruwan Newtonian suna nufin ruwaye inda damuwa ya yi daidai da Yawan nau'in); Yawan: 1.02 zuwa 1.20g / cm³; Babban shayar ruwa, halayen hydrolysis zai faru a digiri 230 Celsius; Ruwa sha PA46> PA6> PA66> PA1010> PA11> PA12> PA1212; Babban raguwar ƙimar gyare-gyare.PP, PE> PA> PS, ABS.Matsakaici dukiya da katanga mai ƙarfi ga iska.
Abubuwan injiniya na polyamid pa6
Kaddarorin injina na polyamid pa6 gabaɗaya suna da alaƙa da crystallinity: Mafi girman crystallinity, mafi girman ƙarfi da ƙarfi da ƙarfi.Dangane da ƙarfin, PC> PA66> PA6> POM> ABS. Ƙarfin yana da tasiri sosai ta hanyar hygroscopicity, mafi girma da yawan zafin jiki, mafi girma da hygroscopicity, ƙananan ƙarfin ƙarfi da sauran kaddarorin.
Taurin tasirin yana tasiri sosai ta aikin hygroscopic.Tare da karuwar zafin jiki, shayarwar ruwa yana ƙaruwa kuma ƙarfin yana ƙaruwa.(Yawanci, taurin ba shi da kyau a cikin busasshen yanayi da ƙarancin zafin jiki, kuma yana iya yiwuwa a sami fashewar damuwa tare da samfuran ƙarfe da karaya a 0 ℃.
Polyamid pa6 yana da kyau mai kyau da juriya mai kyau.
Kyakkyawan juriya ga mai, misali.fetur.
Ƙarfin gajiya yana da girma, gabaɗaya 20% zuwa 30% na ƙarfin ɗaure.Ƙarfin gajiya na PA6 da PA66 na iya kaiwa kusan 22MPa, na biyu kawai zuwa POM (35MPa) kuma sama da PC (10-14MPa).Jerin dangane da ƙarfin gajiya: POM> PBT, PET> PA66> PA6> PC> PSF> PP.
Babban taurin, PA66: 108 zuwa 120HRR;Saukewa: PA6120HR.
Juriya mara kyau: Mafi kyau fiye da PP da PE, kuma mafi muni fiye da ABS da POM.
Rashin juriyar fatattakar damuwa: yakamata a gudanar da maganin humidification bayan sarrafa samfuran.
Lokacin aikawa: Fabrairu-21-2022